2015

2014

2013

•  Jahns, A. Piorra, E. Lage, C. Kirchhof, D. Meyners, J.L. Gugat, M. Krantz, M. Gerken, R. Knöchel, E. Quandt, Giant magnetoelectric effect in thin film composites, Journal of the American Society, 96, 1673 - 1681 (2013)

• S. Marauska, R. Jahns, C. Kirchhof, M. Claus, E. Quandt, R. Knöchel, B. Wagner, Highly sensitive wafer-level packaged
  MEMS magnetic field sensor based on magnetoelectric composites, Sensors and Actuators A, 189, 321 - 327 (2013)

• A. Piorra, R. Jahns, I. Teliban, L Gugat, M. Gerken, R. Knöchel, E. Quandt, Magnetoelectric Thin Film Composites with
  Interdigital Electrodes, Appl. Phys. Lett., 103, 032902 (2013)

• C. Kirchhof, M. Krantz, I. Teliban, R. Jahns, S. Marauska, B. Wagner, R. Knöchel, M. Gerken, D. Meyners, E. Quandt, Giant
  magnetoelectric effect in vacuum, Applied Physics Letters, 102, 232905 (2013)
• G.Yu. Golubiatnikov, S.P. Belov, I.I. Leonov, A.F. Andrianov, I.I. Zinchenko, A.V. Lapinov, V.N. Markov, A.P. Shkaev, A.
  Guarnieri, Precision Subdoppler Millimeter and Submillimeter Lamb-Dip Spectrometer, Izwestija suzov. Radiofisica,
  LVI, 8 - 9 (2013)
• M. Kheir, H. Kreft, R. Knöchel, RF identification and security technique for highly-secure UWB information systems, IEEE
  24th Symposium on Personal Indoor and Mobile Radio Communications, 164 - 168 (2013)
• M. Kheir, H. Kreft, R. Knöchel, Nanostructured RFID technology: Attack-response and temperature-robustness
  investigations, European Microwave Conference, 132 - 135 (2013)
• F. Daschner, H. Mextorf, M. Kent, R. Knöchel, Moisture Measurement of Irregularly Shaped Objects using a Phased Array
  Antenna, Proceedings of the 10th International Conference on Electromagnetic Wave Interaction with Water and
  Moist Substances, (2013)

• F. Daschner, B.E. Beck-Broichsitter, D. Christofzik, W. Stellmach, S.T. Becker, J. Wiltfang, R. Knöchel, Sensor for
  Monitoring the Progress of Heterotopic Bone Induction, Proceedings of the 10th International Conference on
  Electromagnetic Wave Interaction with Water and Moist Substances, (2013)

• H. Mextorf, C. Plueschke, F. Daschner, M. Kent, R. Knöchel, UWB multi-channel m-sequence system for moisture measurements, IEEE International Conference on Ultra-Wideband, 221 - 225 (2013)

• H. Mextorf, R. Knöchel, Ultra-Wideband Loose Coupling Directional Couplers with High Directivity, Proceedings of the
  European Microwave Conference, doi: 10.1109/ICUWB.2013.666385, (2013)

2012

• P. Rezaee, R. Knöchel, and M. Tayarani, “Simple, Fast, and Accurate Parametric Modeling of the Coupling and External Quality Factor for Microstrip Filter Design Using Active Learning Method”, International Journal of Electronics and Communications, accepted.
• N. Nasr Esfahani, P. Rezaee, K. Schünemann, and R. Knöchel, “Miniaturized Coaxial Cavity Resonator Based on Anisotropic Negative Permeability Metamaterial Loading”, Microwave and Optical Technology Letters, Vol. 54, No. 3, pp. 595-599, March 2012.
• H. Greve, R. Jahns, J. Raethjen. “Neu vermessen”, Forschung - das Magazin der DFG, accepted.
• E. Lage, C. Kirchhof, V. Hrkac, L. Kienle, R. Jahns, R. Knöchel, E. Quandt and D. Meyners. "Exchange Biasing of Magnetoelectric Composites", Nature Materials, accepted.
• S. Marauska, V. Hrkac, T. Dankwort, R. Jahns, H. J. Quenzer, R. Knöchel, L. Kienle and B. Wagner. "Sputtered thin film piezoelectric aluminum nitride as a functional MEMS material", Microsystem Technologies, accepted.
• E. Laurandakis, R. Weigel, H. Mextorf, R. Knöchel, "Circuit Agility," IEEE Microwave Magazine, vol. 3, no. 1, pp 111-121, 2012.
• H. Mextorf, F. Daschner, M. Kent, R. Knöchel, "Non-Contacting Moisture Sensing using a Dedicated UWB Time Domain Instrument," Proc. German Microwave Conference 2012, pp. 1-4, Ilmenau, 2012.
• H. Mextorf, F. Daschner, M. Kent, R. Knöchel, "UWB Time Domain Transmission Sensor for Free-Space Moisture Measurements," IMS 2012, accepted.
• H. Mextorf, F. Daschner, M. Kent, R. Knöchel, "Signal Quality Considerations for Free-Space UWB Moisture Measurements," MIKON 2012, accepted.

Höft bis 2011

• [1] M. Höft, B. Schumann, R. Judaschke, M. Shahabadi: A 65 GHz Holographic Power Combiner, Proc. IEEE MTT-Symp., Anaheim, CA, USA, 13.-19. June 1999, pp. 1833-1836
• [2] M. Höft, H.-G. Unger: Principles of Holographic Multi-Element Coupling at Infrared and Millimeter-Wave Frequencies, Proc. 25th Int. Conf. on Infrared and Millimeter Waves, Peking, China, 12.-15. Sept. 2000, pp. 345-346
• [3] M. Höft, R. Judaschke: Analysis and Measurement of a Millimeter-Wave Holographic Power Combiner for 5 IMPATT Oscillators, Proc. 8th Int. Conf. on THz Electr., Darmstadt, Germany, 28.-29. Sept. 2000, pp. 145-147
• [4] M. Höft, J. Weinzierl, R. Judaschke: Broadband Analysis of a D-Band Holographic Power Combining Circuit, Proc. IEEE MTT-Symp., Phoenix, AZ, USA, 20.-25. May 2001, pp. 1407-1410 
• [5] B. Schumann, M. Höft, R. Judaschke: A Multi-Element 150/300 GHz Spatial Power Dividing / Combining Frequency Doubler, Proc. IEEE MTT-Symp., Seattle, WA, USA, 2.-7. June 2002, pp. 1539-1542
• [6] M. Höft, J. Weinzierl, R. Judaschke: Broadband Analysis of Holographic Power Combining Circuits, Int. J. of Infrared and Millimeter Waves, Bd. 23 (2002) No. 7, pp. 1127-1146
• [7] M. Höft, R. Judaschke: Analysis of a 150 GHz Spatial Power Divider / Combiner, Proc. 27th Int. Conf. on Infrared and Millimeter Waves, San Diego, CA, USA, 22.-26. Sept. 2002, pp. 117-118
• [8] B. Schumann, M. Höft, M. Saglam, H.L. Hartnagel, R. Judaschke: A 5 Element 450 GHz HBV Frequency Tripler, Proc. IEEE MTT-Symp. Philadelphia, PA, USA, 8.-13. June 2003, pp. 759-762
• [9] T. Magath, M. Höft, R. Judaschke: A Two-Dimensional Quasi-Optical Power Combining Oscillator Array with External Injection Locking, IEEE Trans. Microwave Theory Tech., Vol. 52 (2004) No. 2, pp. 567-572
• [10] M. Höft: Spatial Power Divider/Combiner in D-Band, IEEE Trans. Microwave Theory Tech., Vol. 52 (2004) No. 10, pp. 2379-2384
• [11] M. Höft, S. Burger: Q-factor Improvement of Combline Resonators, German Microwave Conference, Ulm, Germany, 5-7. April 2005, pp. 53-56
• [12] R. Judaschke, M. Höft, K. Schünemann: Quasi-Optical 150GHz Power Combining Oscillator, IEEE Microwave and Wireless Comp. Letters, Vol. 15 (2005) No. 5, pp. 300-302
• [13] J. Müller, M. Höft: Temperature Compensation of Resonators Using Different Materials and Suitable Dimensions, Proc. European Microwave Conf., Paris, France, 3.-7. Oct. 2005
• [14] M. Höft, T. Magath, O. Bartz, S. Burger: Corner Rounding for increased Quality Factor of Cavity Resonators, Proc. Asia-Pacific Microwave Conf., Suzhou, China, 4.-7. Dec. 2005
• [15] M. Höft, T. Magath: Compact Base-Station Filters Using TM-Mode Dielectric Resonators, German Microwave Conference, Karlsruhe, Germany, 28-30. March 2006
• [16] M. Höft: Bottom Coupling of Combline Resonators for hybrid Dielectric / Air-Cavity Bandpass Filters, Proc. European Microwave Conf., Manchester, UK, 10.-15. Sept. 2006
• [17] M. Höft, S. Burger, T. Magath, O. Bartz: Compact Combline Filter with Improved Cross Coupling Assembly and Temperature Compensation Proc. Asia-Pacific Microwave Conf., Pacifico Yokohama, Japan, 12.-15. Dec. 2006
• [18] M. Tamura, T. Ishizaki, M. Höft, H. Tamai: Novel Vertical Split Ring Resonator Fabricated in LTCC Korea-Japan Microwave Conference, Naha, Okinawa, Japan, 15.-16. Nov. 2007
• [19] M. Höft, A. Kronberger, O. Bartz: Tunable Bandpass Filters for Multi-Standard Applications, German Microwave Conference, Hamburg, Germany, 10-12. March 2008
• [20] M. Höft, M. Tamura, T. Ishizaki: Self-Compensation of Alignment Tolerances for Series Capacitors in LTCC Filters with Stepped Impedance Resonators, German Microwave Conference, Hamburg, Germany, 10-12. March 2008
• [21] M. Höft: New Concepts for Dielectric Multi-Mode Resonators with Branches, Proc. IEEE MTT-Symp. Atlanta, GA, USA, 15.-20. June 2008
• [22] M. Höft, M. Tamura, T. Ishizaki: Self-Compensation of Alignment Tolerances for Couplings in LTCC Filters, Frequenz – Journal of RF-Engineering and Telecommunication, Vol. 62 (2008) No. 9-10, pp. 216-221
• [23] M. Höft: Y-Shape Dielectric Dual-Mode Resonator, IEEE Trans. Microwave Theory Tech., Vol. 56.2 (2008) No. 12, pp. 3066-3071
• [24] M. Höft: Tunable Capacitive Coupling for Cavity Resonator Filters, German Microwave Conference, Munich, Germany, 16-18. March 2009
• [25] M. Höft: Hybrid TE/TM-Multi-Mode Resonators, German Microwave Conference, Munich, Germany, 16-18. March 2009
• [26] M. Höft: Bandpass Filter using TM-Mode Dielectric Rod Resonators with Novel Input Coupling, Proc. IEEE MTT-Symp. Boston, MA, USA, 7.-12. June 2009
• [27] M. Höft, T. Shimamura: Design of Symmetric Trisection Filters for Compact Low-Temperature Cofired Ceramic Realization IEEE Trans. Microwave Theory Tech., Vol. 58 (2010) No. 1, pp. 165-175
• [28] M. Tamura, T. Ishizaki, M. Höft: Design and Analysis of Vertical Split Ring Resonator and its Application to Unbalanced-balanced Filter IEEE Trans. Microwave Theory Tech., Vol. 58 (2010) No. 1, pp. 157-164
• [29] M. Höft: Dielectric TE Dual-Mode Resonator Filters, German Microwave Conference, Berlin, Germany, 15-17. March 2010
• [30] M. Höft, F. Yousif: Orthogonal Coaxial Cavity Filters With Distributed Cross-Coupling IEEE Microwave and Wireless Comp. Letters, Vol. 21 (2011) No. 10, pp. 519-521
•  

2011

• M. Höft, F. Yousif: Orthogonal Coaxial Cavity Filters With Distributed Cross-Coupling IEEE Microwave and Wireless Comp. Letters, Vol. 21 (2011) No. 10, pp. 519-521
• H. Mextorf, F. Daschner, M. Kent, R. Knöchel, UWB free-space characterization and shape recognition of dielectric objects using statistical methods, IEEE Trans. Instrum. Meas., 60, 1389 - 1396 (2011)
• H. Mextorf, T. Lehmann, R. Knöchel, Compact cascaded directional couplers with continuously tuneable coupling ratios, Proc. German Microwave Conference, 1 - 4 (2011)
• F. Daschner, R. El Korch, R. Knöchel, A Stray Field Ring Resonator for Quantitative Permittivity Determination, Proceedings of the 9th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, 119 - 126 (2011)
• H. Mextorf, F. Daschner, M. Kent, R. Knöchel, Free-spaced prediction of the water content of irregularly shaped bodies filled with water-ethanol mixtures, Proceedings of the 9th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, 162 - 169 (2011)
• H. Mextorf, F. Daschner, M. Kent, R. Knöchel, New UWB Free-Space Method for the Classification and Characterization of Dielectric Objects, Proc. ICUWB, 410 - 414 (2011)
• H. Mextorf, F. Daschner, M. Kent, R. Knöchel, Performance of Multivariate Calibration Methods for the UWB Characterization of Dielectric Objects, Innovative Feuchtemessung in Forschung und Praxis, 6, 105 - 112 (2011)
• F. Daschner, S. Hoffmann, R. Knöchel, M. Jerosch-Herold, C. Rickers, Resonant Stents for Non-Invasive Monitoring of Restenosis, Proceedings of the 41st European Microwave Conference, 972 - 975 (2011)
• R. Jahns, H. Greve, E. Woltermann, E. Lage, E. Quandt, R. Knöchel, Magnetoelectric Sensors for Biomagnetic Measurements, Medical Measurements and Application Proceedings (MeMeA), 107 - 110 (2011)
• B. Gojdka, R. Jahns, K. Meurisch, H. Greve, R. Adelung, E. Quandt, R. Knöchel, F. Faupel, Fully integrable magnetic field sensor based on delta-E effect, Appl. Phys. Lett., 99, 223502 (2011)
• R. Jahns, H. Greve, E. Woltermann, E. Quandt, R. Knöchel, Noise Performance of Magnetometers with Resonant Thin Film Magnetoelectric Sensors, IEEE Transactions on Instrumentation and Measurements, 60 (8), 2995 - 3001 (2011)
• R. Knöchel, A. Teplyuk, G. Khlopov, K. Schünemann, Millimeter wave range sensor for protection of outdoor areas, Proceedings of the 6th Future Security Conference, 468 - 471 (2011)
• N. Nasresfahani, P. Rezaee, K. Schünemann, R. Knöchel, M. Tayarani, Miniaturized Coaxial Cylindrical Cavity Filters Based on Sub-Wavelength Metamaterial Loaded Resonator, Proceedings of the International Conference on Electromagnetics in Advanced Applications, 1086 - 1089 (2011)
• N. Nasresfahani, P. Rezaee, M. Tayarani, Application of Metamaterials in Microwave Humidity Sensors, Proceedings of the 25th International Symposium on Microwave and Optical Technology, 143 - 146 (2011)
• N. Nasresfahani, K. Schünemann, Modifying Humidity Sensors Through the Use of Metamaterial Structures, Theoretical and Methodical Problems of Radio Engineering Systems Effective Functioning, 103 - 110 (2011)
• P. Rezaee, N. Nasresfahani, R. Knöchel, M. Tayarani, Active Learning Method for External Q Computation, Proceedings of the 6th German Microwave Conference, 1 - 4 (2011)
• P. Rezaee, N. Nasresfahani, R. Knöchel, M. Tayarani, Using Active Learning Method for designing Miniaturized Microstrip Metamaterial Bandpass Filters, Proceedings of the 25th International Symposium on Microwave and Optical Technology, 257 - 260 (2011)
• P. Rezaee, N. Nasresfahani, R. Knöchel, M. Tayarani, Active Learning Method for Designing Miniaturized Waveguide Filters Loaded by Broadside-Coupled Split Ring Resonator, Proceedings of the 13th International Conference on Electromagnetics in Advanced Applications, 1074 - 1077 (2011)
• P. Rezaee, M. Tayarani, R. Knöchel, Active Learning Method for the Determination of Coupling Factor and External Q in Microstrip Filter Design, Progress in Electromagnetics Research, 120, 459 - 479 (2011)
• P. Rezaee, M. Tayarani, R. Knöchel, Miniaturized Microstrip Filter Design Using Active Learning Method, Radioengineering Journal, 20, 4, 857 - 865 (2011)

2010

• R. Knöchel, R. Jahns, W. Taute, C. Döscher, A resonator-based moisture meter for high moisture levels, Aquametry 2010, 53 - 62 (2010)
• F. Daschner, R. Knöchel, Antennas with Slant Radiation Characteristics for Contactless Material Characterisation at 24GHz, Aquametry 2010, 90 - 98 (2010)
• H. Mextorf, F. Daschner, M. Kent, R. Knöchel, Non-contacting UWB-characterization of dielectric objects using multivariate calibration, Aquametry 2010, 136 - 144 (2010)
• A. Guarnieri, J. Demaison, H.D. Rudolph, Structure of Ketene - Revisited re (equilibrium) and rm (mass-dependent) structures, Journal of Molecular Structure, 969, 1 - 8 (2010)
• F. Daschner, Breitbandige dielektrische Spektroskopie im Mikrowellenbereich, Proceedings of the 15th Heiligenstädter Kolloquium, 57 - 65 (2010)
• F. Hettstedt, U. Schürmann, R. Knöchel, E. Quandt, Toroid Microinductors Using Segmented Magnetic Cores, Proceedingsof the International Microwave Symposium 2010, 1348 - 1351 (2010)
• H. Mextorf, R. Martens, F. Daschner, R. Knöchel, Dual polarized UWB antenna for free-space characterization of dielectric objects, Proceedings of the German Microwave Conference 2010, 162 - 165 (2010)
• J. Adam, L. Klinkenbusch, H. Mextorf, R. Knöchel, Numerical Multipole Analysis of Ultra Wide-Band Antennas, IEEE Transactions on Antennas and Propagation, 58, 3847 - 3855 (2010)
• H. Mextorf, F. Daschner, M. Kent, R. Knöchel, Free-space determination of permittivity, size and orientation of rectangular shaped objects using multivariate analysis, Proceedings of the European Microwave Conference, 152 - 155 (2010)
• T. Lehmann, R. Knöchel, Signal Pre-Distortion and Bandwidth Requirements for Sequential Power Amplifiers, Proceedingsof the International Microwave Symposium 2010, 1056 - 1059 (2010)
• P. Rezaee, Nasrin Nasr Esfahani, R. Knöchel, M. Tayarani, Active Learning Method for Microstrip Filter Design, Proceedings of the 40th European Microwave Conference, 369 - 372 (2010)
• H. Greve, E. Woltermann, R. Jahns, S. Marauska, B. Wagner, R. Knöchel, M. Wuttig and E. Quandt. "Low damping resonant magnetoelectric sensors", Applied Physics Letters, Vol. 97. 2010, pp. 152503.

2009

• T. Lehmann, F. Hettstedt, R. Knöchel, Reconfigurable Wilkinson Power Dividers with Minimum Number of Switches, Electronics Letters, 45, Issue 2, 111 - 112 (2009)
• F. Hettstedt, T. Lehmann, R. Knöchel, Novel Dual Mode Microstrip Bandpass-Filter, Microwave Magazine, 10, 155 - 157 (2009)
• T. Lehmann, R. Knöchel, Power Ampflifier Efficiency Enhancement using Adaptive Load Transformation, Proceedings of the German Microwave Conference 2009, (2009)
• W. Gerhard, R. Knöchel, Improved Design of Outphasing Power Amplifier Combiners, Proceedings of the German Microwave Conference 2009, (2009)
• F. Hettstedt, U. Schürmann, R. Knöchel, E. Quandt, Double Coil Permeameter for the Characterization of Magnetic Materials, Proceedings of the German Microwave Conference 2009, (2009)
• T. Lehmann, R. Knöchel, Sequential Power Amplifiers with Adaptable Combiners, Proceedings of the International Microwave Symposium 2009, 767 - 770 (2009)
• H. Mextorf, T. Lehmann, R. Knöchel, Systematic Design of Reconfigurable Quadrature Directional Couplers, Proceedings of the International Microwave Symposium 2009, 1009 - 1012 (2009)
• A. Teplyuk, R. Knöchel, G. Khlopov, Aerosol Particle Sensor Based on Millimeter-Wave Coherent Radar with High Spatial Resolution, Proceedings of the International Microwave Symposium 2009, 1173 - 1176 (2009)
• T. Lehmann, R. Knöchel, Design and Performance of Multi-Channel Switched Sequential Amplifiers, International Journal of Microwave and Wireless Technologies, 1, Special Issue 4, 269 - 275 (2009)
• U. Schürmann, A. Gerber, F. Hettstedt, V. Zaporojtchenko, R. Knöchel, F. Faupel, E. Quandt, Fabrication of Toroidal Microinductors for RF Applications, IEEE Transactions on Magnetics, 45, Issue 10, 4770 - 4772 (2009)
• R. Knöchel, G. Khlopov, A. Linkova, A. Teplyuk, K. Schünemann, O. Vojtovych, Double Frequency Sounding of Volume Scatterers, Proceedings of the International Radar Symposium 2009, 437 - 441 (2009)
• I.M. Tiginyanu, E. Foca, V.V. Sergentu, V.V. Ursaki, F. Daschner, R. Knöchel, H. Föll, Design and Characterization of Novel Focussing Elements Based on Photonic Metamaterials, Journal of Nanoelectronics and Optoelectronics, 4, no. 1, 20 - 39 (2009)
• F. Daschner, R. Knöchel, Dual operation mode resonator with fractal structure for the dertermination of the conductivity and permittivity of materials, Proceedings of the 8th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, (2009)
• M. Kent, F. Daschner, Time domain spectroscopy, Fishery products: quality, safety and authenticity, 273 - 285 (2009)

2008

• A. Gülck, R. Knöchel: Three-dimensional Position Estimation of Dielectric Objects using UWB-Pulses and Cross-Correlation Methods. Proceedings 3rd German Microwave Conference, GeMiC2008, CD-ROM, Hamburg, Germany, March 2008, pp. 105-108
• T. Lehmann, R. Knöchel: Wideband Sequential Ampflifier with Switched Directional Couplers. Proceedings 3rd German Microwave Conference, GeMiC2008, CD-ROM, Hamburg, Germany, March 2008, pp. 105-108
• W. Gerhard, R. Knöchel: Design Considerations for Outphasing Power Amplifiers. Proceedings 3rd German Microwave Conference, GeMiC2008, CD-ROM, Hamburg, Germany, March 2008, pp. 388-391
• F. Hettstedt, M.H. Eghlidi, R. Knöchel: Modeling of Magnetic Nanocomposites. Proceedings 3rd German Microwave Conference, GeMiC2008, CD-ROM, Hamburg, Germany, March 2008, pp. 352-355
• A. Teplyuk, R. Knöchel, G. Khlopov: Radar Measurement of Mass Loading of Small Volume Scatters. Proceedings 3rd German Microwave Conference, GeMiC2008, CD-ROM, Hamburg, Germany, March 2008, pp. 408-411
• H. Liu, Y. Yang, X. Li, W. Li, R. Knöchel, K. Schünemann: Harmonic Suppression of Wilkinson Power Divider Using Spurlines with Adjustable Rejection Bands. Proceedings 3rd German Microwave Conference, GeMiC2008, CD-ROM, Hamburg, Germany, March 2008, pp. 74-77
• W. Gerhard, R. Knöchel: Nonlinear Behaviour and Digital Phase Predistortion of Outphasing Power Amplifiers. Proceedings 3rd German Microwave Conference, GeMiC2008, CD-ROM, Hamburg, Germany, March 2008, pp. 89-92
• F. Hettstedt, K. Schürmann, H. Greve, V. Zaporojtchenko, R. Knöchel, F. Faupel, E. Quandt: Functional Materials for Microwave Applications. Proceedings 3rd German Microwave Conference, GeMiC2008, CD-ROM, Hamburg, Germany, March 2008, pp. 205-208
• T. Lehmann, R. Knöchel: Design and Performance of Sequential Power Amplifiers. Proceedings of the IEEE MTT-S 2008 International Microwave Symposium, June 15-20, 2008, Atlanta, USA, paper TH2B, pp. 767-770
• O. Schimmer, F. Daschner, R. Knöchel: UWB Sensors in Food Quality Management – The Way from the Concept to the Market. Proceedings of the 2008 International Conference on Ultra-Wideband (ICUWB 2008), Vol. 2, pp. 141-144
• R. Knöchel, A. Teplyuk, G.I. Khlopov, K. Schünemann: Correlation processing of noise-like signals from coherent radar. International Radar Symposium IRS 2008, 21-23 May 2008, Wroclaw, Poland, paper A2-4, pp. 115-118
• T. Lehmann, R. Knöchel: Theorie und Design sequentieller Verstärker. Kleinheubacher Berichte, paper KH2008-C-004, 22.-26.9.2008, Miltenberg
• H. Mextorf, T. Lehmann, R. Knöchel: Rekonfigurierbare Richtkoppler mit einstellbarer Frequenz und Koppelstärke. Kleinheubacher Berichte, paper KH2008-C-002, 22.-26.9.2008, Miltenberg
• F. Hettstedt, T. Lehmann, R. Knöchel: Toroid-Mikroinduktoren mit magnetischen Nanokompositen für Hochfrequenzanwendungen. Kleinheubacher Berichte, paper KH2008-D-007, 22.-26.09.2008, Miltenberg
• T. Lehmann, R. Knöchel: Multi Stage Switched Sequential Amplifiers. accepted for European Microwave Conference (EuMC 2008), Amsterdam
• T. Lehmann, H. Mextorf, R. Knöchel: Design of Quadrature Directional Couplers with Continuously Variable Coupling Ratios. accepted for European Microwave Conference (EuMC 2008), Amsterdam
• F. Hettstedt, U. Schürmann, R. Knöchel, E. Quandt: Permeameter For The Characterization Of Magnetic Thin Films Up To 15 GHz. accepted for European Microwave Conference (EuMC 2008), Amsterdam

Knöchel bis 2007

• [1] J. Kanzenbach, R. Knöchel, J. Kordts, K.M. Lüdeke, P. Röschmann: Mikrowellen-Hyperthermie zur Krebstherapie, BMFT-Abschlußbericht
• [2] A. Rosenberger, J. Jelonnek, R. Knöchel, H. Miller: A Ground Operated Digital Ice-Radar built from 'off-the-shelf' Components and Field Tests on the Ekstroem Ice Shelf, Antarctica, IEEE Transactions on Geosciences and Remote Sensing
• [3] K. Schünemann, R. Knöchel, G. Begemann: Components for microwave integrated circuits with evanescent-mode resonators, IEEE MTT-S International Microwave Symposium Digest, San Diego, 1977, S. 377-380
• [4] R. Knöchel, K. Schünemann: Temperature compensation of cavity-stabilized Gunn oscillators, Electonics Letters, 13, 1977, S. 723-724
• [5] K. Schünemann, R. Knöchel, G. Begemann: Components for microwave integrated circuits with evanescent-mode resonators, IEEE Trans. Microwave Theory and Techniques, MTT-25, 1977, S. 1026-1032
• [6] R. Knöchel, K. Schünemann, J.D. Büchs: Theory and performance of cavity- stabilized microwave oscillators, IEE J. Microwaves, Opt. & Acous., 1, 1977, S. 143-155
• [7] R. Knöchel, K. Schünemann: A prototype oscillator circuit utilizing evanescent-mode resonator, 7th Europ.Microwave Conf., Kopenhagen, Denmark, 1977, S. 593-597
• [8] J.D. Büchs, R. Knöchel: Zum Entwurf passiv stabilisierter Mikrowellen- Dioden-Oszillatoren, Wiss. Ber. AEG-Telefunken, 1/2, 1977, S. 10-22
• [9] R. Knöchel: Analysis of stability and performance of oscillators using the gaussian principle of the least constraint, 6th Colloquium on Microwave Communication, IV-2/9.1 - IV-2/9.4, 1978
• [10] R. Knöchel, K. Schünemann: Noise and transfer properties of harmonically synchronized oscillators, IEEE Trans. Microwave Theory and Techniques, MTT-26, 1978, S. 939-944
• [11] K. Schünemann, R. Knöchel: On the matching of transmission cavity stabilized microwave oscillators, IEEE Trans. Microwave Theory and Techniques, MTT-26, 1978, S. 147-155
• [12] R. Knöchel: Integrierte Mikrowellenoszillatoren in Flossenleitungstechnik, 23. Internationales Wissenschaftliches Kolloquium, Heft 4, Vortragsreihe B4, Ilmenau, 1978, S. 21-24
• [13] G. Begemann, R. Knöchel, K. Schünemann: Eine Schaltungstechnik mit Hohlleitern unterhalb der Grenzfrequenz, Mikrowellen Magazin, 1978, S. 269- 276
• [14] R. Knöchel: Design and performance of microwave oscillators in integrated fin-line technique, IEE J. Microwaves, Opt. & Acous., 3, 1979, S. 115-120
• [15] R. Knöchel, K. Schünemann, B. Schiek: Comments on "The Measurement of noise in microwave transmitters, IEEE Trans. Microwave Theory and Techniques, MTT-27, 1979, S. 84-85
• [16] K. Schünemann, R. Knöchel, J. Kalinski: Noise in mutually coupled oscillators, 9th Europ.Microwave Conf., Brighton, 1979, S. 593-597
• [17] R. Knöchel, K. Schünemann: Cavity stabilized oscillators with large tuning range, NTZ-Archiv, 1, 1979, S. 9-13
• [18] R. Knöchel, K. Schünemann: Ein Beitrag zur Gütefaktormessung von Mikrowellenoszillatoren, Mikrowellen Magazin, 3, 1979, S. 152-156
• [19] R. Knöchel, K. Schünemann: Reactance compensation techniques for injection locked amplifiers, AEÜ, 33, 1979, S. 49-56
• [20] L. Szabo, K. Schünemann, R. Knöchel: VCO's in waveguide below cut-off technique, NTZ-Archiv, 1, 1979, S. 57-61
• [21] R. Knöchel, K. Schünemann: An approach to the ideal circuit for power combining, 10th European Microwave Conference, Warschau, Poland, 1980, S. 299-303
• [22] R. Knöchel, A. Schlegel: Octave band double balanced finline mixers at mm- wavelengths, 10th European Microwave Conference, Warschau, Poland, 1980, S. 722-726
• [23] G. Begemann, R. Knöchel: Ku-band front-end in integrated fin-line technique, AEÜ, 34, 1980, S. 179-180
• [24] A. Jacob, R. Knöchel: Broadband tunable GaAs-FET oscillator with hybrid coupled microstrip and evanescent mode resonators, 10th European Microwave Conference, Warschau, Poland, 1980, S. 709-713
• [25] R. Knöchel: Rauschen in passiv stabilisierten Oszillatoren, NTG-Fachberichte, Richtfunk, 70, 1980, S. 250-256
• [26] H. El Hennawy, K. Schünemann, R. Knöchel: Octave band finline hybrid, 11th European Microwave Conference, Amsterdam, 1981, S. 301-305
• [27] J. Reich, R. Knöchel, K. Schünemann: Multiple device oscillators in waveguide below cut-off technique, AEÜ, 35, 1981, S. 97-101
• [28] R. Knöchel, W. Meyer: Continous moisture determination in fluids and slurries, Proc. Microwave Power Symp., Toronto, 1981, S. 193-195
• [29] R. Knöchel: Unified large-signal stability and noise theory for synchronized oscillators, IEE Proc. Pt. H, 128, 1981, S. 137-145
• [30] R. Knöchel, K. Schünemann: Noise in synchronized oscillators with multiple resonant circuits, AEÜ, 36, 1982, S. 213-215
• [31] R. Knöchel, W. Meyer, F. Zywietz: Dynamic 'in vivo' performance of temperature controlled local microwave hyperthermia at 2.45 GHz, IEEE International Microwave Symp., Dallas, 1982, S. 444-447
• [32] F. Zywietz, R. Knöchel, W. Meyer: Heating of animal tumours by a temperature controlled microwave device, XVII Annual Meeting of the European Society for Radiation Biology, Bordeaux, 1982
• [33] R. Knöchel, K. Schünemann: Noise in multiple device oscillators, AEÜ, 36, 1982, S. 31-38
• [34] R. Knöchel, K. Schünemann: Ensembles of oscillators with several output ports, AEÜ, 36, 1982, S. 148-152
• [35] R. Knöchel, K. Schünemann: Noise performance of cavity stabilized oscillators, IEE Proc. Pt. H, 130, 1983, S. 281-289
• [36] R. Knöchel: A double balanced finline mixer with broad IF-bandwidth capability, 13th European Microwave Conference, Nürnberg, 1983, S. 567- 572
• [37] F. Zywietz, R. Knöchel, J. Kordts: Local heating of a rat tumour by microwaves, Meeting of the European Hyperthermia Group, Essen, 1983
• [38] R. Knöchel: Capabilities of multiapplicator systems for focused hyperthermia, IEEE Trans. Microwave Theory and Techniques, MTT-31, 1983, S. 70-73
• [39] H. El Hennawy, R. Knöchel, K. Schünemann: Wideband branchline couplers in finline technology, AEÜ, 37, 1983, S. 40-46
• [40] R. Knöchel, K.M. Lüdeke, W. Meyer: Mikrowellen in der Medizin, Phys. Bl., 39, 1983, S. 337-342
• [41] R. Knöchel: MIC-s with waveguides below cutoff., Invited paper XXI URSI General Assembly, Florence, 1984, S. 436
• [42] J. Rybach, S. Heckmann, R. Knöchel, E. Brinkmeyer: Rückstreumeßgeräte für große Wellenlängen: Ein neues Konzept, NTG Fachberichte 89, Lichtwellenleiterkabel, VDE Verlag, 1985, S. 139-142
• [43] R. Knöchel, F. Zywietz: Effect of Combined Tumour Therapy including Hyperthermia on Dielectric Properties of Rat Tissue, 15th European Microwave Conference, Paris, 1985, S. 673-678
• [44] F. Zywietz, R. Knöchel: The role of dielectric properties by heating a rat tumour with microwaves, VIIth Meeting of the European Society for Hyperthermic Oncology (ESHO), Paris, 1985
• [45] S. Heckmann, J. Rybach, E. Brinkmeyer, R. Knöchel: The Future of Optical Time Domain Reflectometry: Utilization of the CoherentDetection Technique, 34th International Wave and Cable Symposium, Hyatt Cherry Hill, New Jersey, 1985, S. 125-134
• [46] R. Knöchel: Mikrowellen-Hyperthermie zur Krebstherapie, Streffer, Herbst, Schwabe: "Lokale Hyperthermie", Deutscher Ärzte Verlag Köln, 1986, S. 91- 104
• [47] F. Zywietz, R. Knöchel, J. Kordts: Heating of a rhabdomyosarcoma of the rat by 2450 MHz microwaves-technical aspects and temperature distributions, Recent Results in Cancer Research, 101, Springer Verlag, 1986
• [48] F. Zywietz, R. Knöchel: Dielectric properties of Co-g-irradiated and microwave-heated rat tumour and skin measured in vivo between 0.2 and 2.4 GHz, Phys. Med. Biol., 31 no.9, 1986, S. 1021-1029
• [49] R. Knöchel, S. Heckmann, J. Rybach, E. Brinkmeyer: Optical Time Domain Reflectometry Using the Heterodyne Principle, Proceedings 7th International Congress Laser 85, Optoelectronics in Engineering, Springer-Verlag, 1986, S. 231-234
• [50] M. Daas, R. Knöchel: Compact Sounding System Using Microwaves and Ultrasound, IEEE MTT-S International Microwave Symposium Digest, Long Beach, 1989, S. 257-260
• [51] R. Knöchel, B. Mayer, U. Göbel: Unilateral Microstrip Balanced and Doubly Balanced Mixers, IEEE MTT-S International Microwave Symposium Digest, Long Beach, 1989, S. 247-250
• [52] B. Mayer, R. Knöchel: Novel Branchline Couplers for Monolithic Microwave Integrated Circuits, Proceedings 20th EuMC, Budapest, 1990, S. 1157-1162
• [53] B. Schönrock, R. Knöchel: X-Band Homodyne Network Analyzer Using a Broadband Computer-Controlled SSB-Modulator, Proceedings 20th EuMC, Budapest, 1990, S. 1467-1472
• [54] B. Mayer, R. Knöchel: Microstrip Balanced Diode Mixers for X-Band Frequencies, Electonics Letters, 26 No.16, 1990, S. 1272-1273
• [55] R. Knöchel, B. Mayer: Broadband Printed Circuit 0°/180° Couplers and High Power Inphase Power Dividers, IEEE MTT-S International Microwave Symposium Digest, Dallas, 1990, S. 471-474
• [56] B. Mayer, R. Knöchel: Branchlining-Couplers with Improved Design Flexibility and Broad Bandwidth, IEEE MTT-S International Microwave Symposium Digest, Dallas, 1990
• [57] B. Mayer, R. Knöchel: Biasable Balanced Mixers and Frequency Doubler Using a New Planar Balun, Proceedings 20th EuMC, Budapest, 1990, S. 1027-1032
• [58] B. Mayer, R. Knöchel, A. Reccius: Bestimmung des Mikrowellenoberflächenwiderstandes dünner YBaCuO-Filme unter Verwendung eines konischen Resonators, Supraleitung und Tieftemperaturtechnik, VDI Verlag, Düsseldorf, 1991, S. 229-302
• [59] B. Mayer, R. Knöchel: A New Impedance Transforming Inphase/Antiphase Transmission Line Filter and its Application to some Microwave Components, Proceedings 21st EuMC, Stuttgart, 1991, S. 1148-1153
• [60] B. Burchard, R. Knöchel: An Improved Image Error Calibration Process for Homodyne Network Analyzer, Proceedings 21st EuMC, Stuttgart, 1991, S. 515-520
• [61] B. Mayer, R. Knöchel, A. Reccius: Novel Truncated Cone Cavity for Surface Resistance Measurements of High Tc Superconducting Thin Films, IEEE MTT-S International Microwave Symposium Digest, Boston, 1991, S. 1019- 1022
• [62] M. Daas, R. Knöchel: Range Measurement of Nonreflecting and Reflecting Targets Using Interactionof Ultrasound and Microwaves, IEEE MTT-S International Microwave Symposium Digest, Boston, 1991, S. 1013-1016
• [63] B. Burchardt, R. Knöchel: A Homodyne Vector Network Analyzer for Magnitude and Phase Measurements of Harmonics Generated by Nonlinear Two-Ports, 22nd European Microwave Conference, 2, Helsinki, 1992, S. 901- 906
• [64] T. Berceli, K. Schünemann, M. Daas, R. Knöchel, K. Nilkes: Optical Millimeter Wave Generation by Subharmonic Injection Locking, 22nd European Microwave Conference, 2, Helsinki, 1992, S. 1059-1064
• [65] B. Mayer, R. Knöchel: MM-Wave Surface Resistance Measurements of HTS Films Using a Highly Sensitive Cavity, IEEE International Microwave Symp., MTT-S, Albuquerque, 1992, S. 1007-1010
• [66] M. Daas, R. Knöchel: Microwave-Acoustic Measurement System for Remote Temperature Profiling inClosed Environments., 22nd European Microwave Conference, 2, Helsinki, 1992, S. 1225-1230
• [67] B. Mayer, A. Reccius, R. Knöchel: Conical Cavity for Surface Resistance Measurements of High Temperatur Superconductors, IEEE Trans. Microwave Theory and Techniques, MTT-40, No.2, 1992, S. 228-236
• [68] B. Mayer, R. Knöchel, Th. Bade, M. Schilling, B. David: Planar X-Band SQUID-Gradiometer Design for HTS Applications, IEEE International Microwave Symp., MTT-S, Albuquerque, 1992, S. 473-476
• [69] B. Mayer, R. Knöchel, F. Massin: Microwave SQUID Magnetometer at 10 GHz, Workshop on Microwave Devices with High Temperature Superconductors, Helsinki, 1992
• [70] B. Burchardt, R. Knöchel: Accuracy improvements in homodyne vector NWA with binary switched phaseshifters, Electonics Letters, 28, No. 11, 1992, S. 1026-1028
• [71] T. Hauschild, R. Knöchel: Microwave Sensing in Circulating Fluidized Beds, IEEE International Workshop on Microwave Sensing of the German IEEE MTT/AP Chapter, Ilmenau, 1993, S. 42-49
• [72] T. Hauschild, R. Knöchel: Density Monitoring in Circulating Fluidized Beds using a Microwave Sensor, 23rd European Microwave Conference, Paper B4.1, Madrid, 1993, S. 260-262
• [73] R. Knöchel, B.M. Daas: Application of Microwave-Sound Interaction for Short Range Remote Sensing, IEEE International Workshop on Microwave Sensing of the German IEEE MTT/AP Chapter, Ilmenau, 1993, S. 24-33
• [74] F. Massin, H. Christange, R. Knöchel: Einsatz von HTSL-Limitern in Oszillatoren zur Rauschreduzierung, Supraleitung und Tieftemperaturtechnik, VDI Verlag, 1994
• [75] T. Hauschild, R. Knöchel:: Mikrowellensensor zur Dichtebestimmung in Gas/Feststoff-Wirbelschichten, Chem.-Ing.-Tech., 66 Nr.4, 1994, S. 522-523
• [76] C. Hauenschild, R. Knöchel, F. Menke, W. Leschnik: Das dielektrische Verhalten von mineralischen Baustoffen zwischen 1 MHz und 4 GHz, Feuchtetag 95, Berlin, 1995, S. 190-199
• [77] W. Leschnik, C. Hauenschild, R. Knöchel, F. Menke, T. Boltze: A Microwave Moisture Sensor for Building Components, NDT-CE Symp., 1, Berlin, 1995, S. 151-155
• [78] R. Knöchel, F. Menke, O. Vogt, T. Hinz, R. Eggers: Moisture Measurement of Grainy and Fibrous Materials Using Microwaves, ICEMI-Symp., Shanghai, 1995, S. 61-64
• [79] F. Menke, O. Vogt, R. Knöchel: Mikrowellen-Streumessung an Schüttgütern zur Bestimmung von Mischungsanteilen, MIOP '95 Mikrowellen und Optronik, Sindelfingen, 1995, S. 46-52
• [80] T. Hauschild, R. Knöchel: Microwave Measurement of Density Profiles in Fluidized Bed Reactors with Improved Spatial Resolution., IEEE MTT-S International Microwave Symposium Digest, Paper TH3F-13, Orlando, 1995, S. 1467-1470
• [81] T. Hauschild, J. Stabe, R. Knöchel: Signalverarbeitung für ein Mikrowellenradarsystem im Nahbereich, MIOP '95 Mikrowellen und Optronik, Paper 1A.6, Sindelfingen, 1995, S. 53-59
• [82] F. Menke, R. Knöchel, T. Boltze, C. Hauenschild, W. Leschnik: Moisture Measurement in Walls using Microwaves, IEEE MTT-S International Microwave Symposium Digest, 3, Orlando, 1995, S. 1147-1150
• [83] T. Hauschild, J. Stabe, R. Knöchel: Estimating the Number of Signal Poles in Reflectometric Data using the Generalized-Pencil-of-Functions Method, IEEE Singapore Conference on Signal Processing, Paper TAS3.2, Singapore, 1995, S. 140-144
• [84] T. Hauschild, J. Stabe, R. Knöchel: Enhancements in Resolution Capability of Microwave Sensors by Using the GPOF-Method - Implications for Tomographic Imaging of Gas-Solid FluidizedBeds, Process Tomography-95, 1995, S. 277-287
• [85] F. Massin, R. Knöchel: Rauscharme Oszillatoren mit zwei integrierten HTSL- Komponenten, Supraleitung und Tieftemperaturtechnik, VDI Verlag, 1996
• [86] F. Menke, T. Hinz, R. Eggers, R. Knöchel: Moisture-Dependent Structural Behaviour and Permittivity Model for GranularMaterials, Journal of Microwave Power an Electromagnetic Energy, 31 Nr.1, 1996, S. 23-29
• [87] F. Menke, O. Vogt, R. Knöchel: Mikrowellen-Streumessung, HF-Report, 10 No.3, 1996, S. 54-56
• [88] F. Menke, R. Knöchel: New Density Independent Moisture Measurement Methods Using Frequency-Swept Microwave Transmission, IEEE MTT-S International Microwave Symposium Digest, 3, San Francisco, 1996, S. 1415-1418
• [89] F. Menke, R. Knöchel: Portable Moisture Measurement System, MTT-S Workshop WMFB, San Francisco, 1996, S. 81-90
• [90] R. Knöchel, F. Menke: Density Independence of Microwave Moisture Determination Using Two Parameter Measurements, MTT-S Workshop WMFB, San Francisco, 1996, S. 138-142
• [91] T. Hauschild, R. Knöchel: Measurement of Complex Permittivity of Solids up to 1000°C, IEEE MTT-S International Microwave Symposium Digest, Paper TH3F-22, San Francisco, 1996, S. 1687-1690
• [92] J.M. Lopez-Villegas, N. Martinez, J. Samitier, J. Bausells, A. Merlos, C. Cane, R. Knöchel: Study of Integrated RF Passive Components Performed Using CMOS and Si Micromachining Technologies, The Seventh Micromechanics Europe Workshop, MME'96, Barcelona, 1996, S. 121-124
• [93] T. Hinz, F. Menke, R. Eggers, R. Knöchel: Development of a Microwave Moisture Sensor for Applications in the Food Industry, Food Science and Technology, 29 No. 4, 1996, S. 316-325
• [94] T. Hauschild, R. Knöchel, F. Menke: Non-invasive Moisture Measurement in Stone Walls using a Reflectometer, MTT-S Workshop WMFB, 1996
• [95] M. Weiß, R. Knöchel: A Highly Accurate Multi-Target Microwave Ranging System for Measuring Liquid Levels in Tanks, 27th European Microwave Conference, Jerusalem, 1997, S. 1103-1112
• [96] F. Menke, T. Hinz, R. Eggers, R. Knöchel: Dielektrische Eigenschaften feuchter organischer Schüttgüter unter Berücksichtigung von Strukturparametern., Feuchtemessung mit Mikrowellen, Expert Verlag, 1997, S. 263-179
• [97] F. Menke, R. Knöchel: Dichteunabhängige Feuchtemessung an bewegten Schüttgütern, Technisches Messen, 11/97, 1997, S. 440-446
• [98] F. Menke, R. Knöchel: Dichteunabhängige Feuchtemessung an bewegten Schüttgütern, 9. Feuchtetag, Weimar, 1997, S. 23-38
• [99] F. Menke, O. Vogt, R. Knöchel: Mikrowellen-Streumessung an Schüttgütern zur Bestimmung von Feuchtegehalten., Feuchtemessung mit Mikrowellen, Expert Verlag, 1997, S. 282-290
• [100] F. Menke, R. Knöchel: Mikrowellen-Feuchtemeßsystem mit verringerter Empfindlichkeit gegenüber Störungen durch Materialinhomogenitäten, 9. Feuchtetag, Weimar, 1997, S. 147-160
• [101] C. Hauenschild, W. Leschnik, T. Boltze, F. Menke, R. Knöchel: Tiefenaufgelöste Feuchtemessung in Feststoffen, Feuchtemessung mit Mikrowellen, Expert Verlag, 1997, S. 348-360
• [102] F. Massin, H. Christange, R. Knöchel: Novel Phase Noise Reduction Technique Using HTSC Limiters, 1997 IEEE-MTT-S International Microwave Symposium, Denver, 1997, S. 307-310
• [103] M. Weiß, R. Knöchel: Novel Methods of Measuring Impurity Levels in Liquid Tanks, 1997 IEEE-MTT-S International Microwave Symposium, Denver, 1997, S. 1651-1654
• [104] F. Menke, R. Knöchel: Mikrowellen-Feuchtemeßsystem mit erhöhter Störsicherheit, Technisches Messen, 01/98, 1998, S. 1-6
• [105] T. Hauschild, R. Knöchel: Calibration of Short Range FMCW-Radars with Network Analyzer Calibration Techniques, 1998 IEEE MTT-S International Microwave Symposium, Baltimore, 1998, S. 969-972
• [106] R. Knöchel: Technology and Signal Processing of Dielectrometric Microwave Sensors for Industrial Applications, Sensors 7, Kapitel 4, 1999
• [107] R. Knöchel, F. Daschner, W. Taute: Mikrowellen-Sensor zur präzisen Feuchtemessung an Bauteilen und Baustoffen, Feuchtetag '99, DGZfP- Berichtsband BB69-CD, Berlin, 1999
• [108] M. Weiß, R. Knöchel: A Novel Method of Determining the Permittivity of Liquids, IMTC, 1999
• [109] R. Knöchel: Broadband Flat Coupling Two-Branch and Multibranch Directional Couplers, IEEE MTT-S International Microwave Symposium Digest, Anaheim, 1999, S. 1327-1330
• [110] M. Kent, R. Knöchel, F. Daschner, U.-K. Berger: Measurement of Composition and Prior Treatment of Foodstuffs using Complex Dielectric Spectra, 3rd Workshop on Electromagnetic Wave Interaction with Water and Moist Substances, Athens, 1999, S. 20-24
• [111] F. Daschner, R. Knöchel, M. Kent: Resonator-based microwave moisture meter with optimized digital signal processing, 3rd Workshop on Electromagnetic Wave Interaction with Water and Moist Substances, Athens, 1999, S. 173-177
• [112] M. Weiß, R. Knöchel: A Monostatic Radio-Acoustic Sounding System, IEEE MTT-S International Microwave Symposium Digest, Anaheim, 1999, S. 1871-1874
• [113] T. Hauschild, R. Knöchel: Using the GPOF-Algorithm in Ground Penetrating Radar Systems, IGARSS'99, Hamburg, 1999
• [114] T. Hauschild, R. Knöchel: Accuracy Enhancement for Hilbert Transform Network Analyzers, 29th European Microwave Conference, Vol. 3, München, 1999, S. 20-23
• [115] M. Weiß, R. Knöchel: Monostatisches Radio-Akustisches Sondierungs- System, Kleinheubacher Tagung, 1999
• [116] M. Weiß, R. Knöchel: A Sub-Millimeter Accurate Microwave Multi-Level Gauging System for Liquids in Tanks, IEEE Trans. Microwave Theory and Techniques, Vol. 49, No. 2, 2000, S. 381-384
• [117] M. Weiß, R. Knöchel: A Monostatic Radio-Acoustic Sounding System Used as an Indoor Remote Temperature Profiler, IMTC, 2000
• [118] F. Daschner, M. Kent, R. Knöchel, U.-K. Berger: Multiparameter Microwave Sensors for Determining Composition or Condition of Substances, IMS, Boston, 2000, S. 1567-1570
• [119] M. Kent, R. Knöchel, F. Daschner, U.-K. Berger: Composition of Foods Including Added Water Using Microwave Dielectric Spectra, 1st International Workshop in Water Determination in Food, Ispra, 2000
• [120] F. Daschner, M. Kent, R. Knöchel, U.-K. Berger: Optimization of the Microwave Determination of Water in Foods Using Principle Components Analysis, IEEE Instrumentation and Measurement Technology Conference, Paper IM-5122, Baltimore, 2000
• [121] M. Weiß, R. Knöchel: A Novel Method of Determining the Permittivity of Liquids, IEEE Transactions on Instrumentation and Measurement, vol. 49, 2000, S. 488-492
• [122] M. Weiß, R. Knöchel: A New Potential-Free Connection Circuit Employing a Compact Microstrip to Slotline Transition, 30th European Microwave Conference, Vol. 3, Paris, France, 2000, S. 76-79
• [123] A. Schaab, R. Knöchel: Noise in Quasioptical Amplifier- and Oscillator Arrays, 25th International Conference on Infrared and Millimeter Wave Digest, Peking, China, 2000, S. 347-348
• [124] M. Kent, K. MacKenzie, U.-K. Berger, R. Knöchel, F. Daschner: Determination of Prior Treatment of Fish and Fish Products Using Microwave Dielectric Spectra, Eur. Food Res. Technol., 210, Test, 2000, S. 427-433
• [125] M. Kent, R. Knöchel, F. Daschner, U.-K. Berger: Composition of Foods Using Microwave Dielectric Spectra, Eur. Food Res. Technol., 210, 2000, S. 359- 366
• [126] F. Daschner, R. Knöchel: Rapid Monitoring of Selected Food Properties Using Microwave Dielectric Spectra, 2nd International Conference on Microwave and Millimeter Wave Technology, Peking, 2000, S. 670-673
• [127] M. Weiß, R. Knöchel: A Sub-Millimeter Accurate Microwave Multi-Level Gauging System for Liquid in Tanks, IEEE Trans. Microwave Theory and Techniques, 2000
• [128] R. Knöchel, F. Daschner, W. Taute: Resonant Microwave Sensors for Instantaneous Determination of Moisture in Foodstuffs, Food Control, Vol. 12, Elsevier Science, Oxford, 2001, S. 447-458
• [129] F. Daschner, R. Knöchel: Microwave Moisture Sensor with Nonlinear Data Processing using Artificial Neural Networks, Sicon '01 - Sensors for Industry, Rosemont, Illinois, USA, 2001, S. 246-250
• [130] M. Kent, R. Knöchel, F. Daschner, U.-K. Berger: Composition of Foods including Added Water using Microwave Dielectric Spectra, Food Control, Vol. 12, Elsevier Science, Oxford, 2001, S. 467-482
• [131] F. Daschner, R. Knöchel, K. Kupfer: Resonator Based Microwave Moisture Meter with Digital Phase Signal Processing, 4th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, Weimar, 2001, S. 125-131
• [132] F. Daschner, R. Knöchel, M. Kent: Determination of the Composition of Foodstuffs using Microwave Dielectric Spectra and Artificial Neural Networks, 4th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, Weimar, 2001, S. 217-223
• [133] F. Daschner, R. Knöchel, M. Kent: Bestimmung der Zusammensetzung von Lebensmitteln mit künstlichen neuronalen Netzen aus dielektrischen Spektren im Mikrowellenbereich, Technisches Messen, tm 1/2002, Oldenbourg Verlag, 2002, S. 19-24
• [134] F. Daschner, R. Knöchel: Dielectric Microwave Sensors with Multivariate Calibration, Kleinheubacher Tagung, Vol. 1, No. 1, Miltenberg, 2002, S. 9-13
• [135] F. Daschner, R. Knöchel: Messdatenverarbeitung mit künstlichen neuronalen Netzen bei Mikrowellen-Resonatoren zur Bestimmung des Feuchtegehaltes, Feuchtetag '02, Tagungsband 11, Weimar, 2002, S. 3-12
• [136] M. Kent, R. Knöchel, F. Daschner, O. Schimmer, J. Oehlenschläger, S. Mierke-Klemeyer, U-K. Barr, P. Floberg, M. Tejada, A. Huidobro, L. Nunes, I. Batista, A. Martins: Time Domain Reflectrometry as a Tool for the Estimation of Quality in Foods, International Conference "Method and methodology for determination of basic physical charcteristics of porous media with application of TDR technology", Lublin, Polen, 2003, S. 18-19
• [137] O. Schimmer, F. Daschner, M. Kent and R. Knöchel: Bestimmung von Qualität und Lagerungsdauer von Mischungsdielektrika durch Zeitbereichsspektroskopie, Kleinheubacher Tagung, 2003, S. 1-5
• [138] F. Daschner, R. Knöchel: A new Transmission-Line Sensor for Measuring the Composition of Foodstuffs using Microwaves, 5th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, Rotorua, Neuseeland, 2003, S. 24-31
• [139] A. Schaab, R. Knöchel: Quasioptische Empfängerstrukturen, Kleinheubacher Tagung, 2003
• [140] O. Schimmer, R. Knöchel: A Handheld TDR-System with a Fast System Rise- Time and a High Resolution-Bandwidth for Moisture Measurements in the Microwave Frequency Range, 5th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, Rotorua, Neuseeland, 2003, S. 171-179
• [141] M. Kent, R. Knöchel, F. Daschner, O. Schimmer, J. Oehlenschläger, S. Mierke-Klemeyer, U.-K. Barr, P. Floberg: Dielectric Spectroscopy and Multivariate Analysis: Applications to Fish Quality Measurements, 5th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, Rotorua, Neuseeland, 2003, S. 64-69
• [142] O. Schimmer, F. Daschner, R. Knöchel, M. Kent, J. Oehlenschläger, S. Mierke-Klemeyer, M. Kröger, U-K. Barr, P. Floberg, M. Tejada, A. Huidobro, L. Nunes, I. Batista and A. Martins: A Handheld TDR-System for the Determination of the Quality of Seafood, First Joint Trans-Atlantic Fisheries Technology Conference (TAFT), 33rd WEFTA Meeting and 48th Atlantic Fisheries Technology Conference, Reykjavik, Island, 2003
• [143] M. Kent, R. Knöchel, F. Daschner, O. Schimmer, J. Oehlenschläger, S. Mierke-Klemeyer, U-K. Barr, P. Floberg, M. Tejada, A. Huidobro, L. Nunes, I. Batista, A. Martins: A new Approach to Measurement of Fresh and Frozen Fish Quality, First Joint Trans-Atlantic Fisheries Technology Conference (TAFT), 33rd WEFTA Meeting and 48th Atlantic Fisheries Technology Conference, Reykjavik, Island, 2003
• [144] W. Gerhard, R. Knöchel: LINC Digital Component Separator for Multicarrier W-CDMA-Signals, IEEE International Microwave Symposium 2004, Fort Worth, Texas, 2004, S. 907-910
• [145] O. Schimmer, A. Gülck, F. Daschner, J. Piotrowski, R. Knöchel: Non- contacting Determination of Moisture Content in Bulk Materials Using Sub- Nanosecond UWB-Pulses, European Microwave Conference 2004, 2, Amsterdam, 2004, S. 677-680
• [146] M. Kent, J. Oehlenschläger, S. Mierke-Klemeyer, R. Knöchel, F. Daschner, O. Schimmer: Estimation of the Quality of Frozen Cod Using a New Instrumental Method, Eur. Food Res. Technol., online first, 2004
• [147] M. Kent, R. Knöchel, F. Daschner, F. Schimmer, J. Oehlenschläger, S. Mierke-Klemeyer, U.-K. Barr, P. Floberg, M. Tejada, A. Huidobro, L. Nunes, I. Batista, A. Martins: Time domain reflectrometry as a tool for the estimation of quality in foods, Int. Agrophysics, 18 (3), 2004
• [148] M Kent, J. Oehlenschläger, S. Mierke-Klemeyer, M. Manthey-Karl, R. Knöchel, F. Daschner, O. Schimmer: A new multivariate approach to the problem of fish quality estimation, Food Chemistry, 87, Elsevier, 2004, S. 531-535
• [149] O. Schimmer, A. Gülck, F. Daschner, J. Piotrowski, R. Knöchel: Non- contacting Determination of Moisture Content in Bulk Materials using Sub- Nanosecond UWB-Pulses, IEEE Trans. Microwave Theory and Techniques, 53, No. 6, IEEE, 2005, S. 2107-2113
• [150] W. Gerhard, R. Knöchel: WCDMA outphasing power amplifier with a software defined transmitter/receiver architecture for determination of the predistortion function. Advances in Radio Science, 2006, pp. 125-133. (http://www.advances-in-radio-science.net/4/125/2006/ars-4-125-2006.pdf)
• [151] E. Foca, H. Föll, F. Daschner, V.V. Sergentu, J. Carstensen, S. Frey, R. Knöchel and I.M. Tiginyanu: Efficient focussing with a concave lens based on a photonic crystal with an unusual effective index of refraction, Materials Research Society, Spring Meeting 2005, San Francisco, 2005
• [152] O. Schimmer, A. Gülck, F. Daschner, J. Piotrowski, R. Knöchel: Non-contacting Determination of Moisture Content in Bulk Materials using Sub-Nanosecond UWB-Pulses, IEEE Trans. Microwave Theory and Techniques, Vol. 53, No. 6, Part 2, 2005, pp. 2107-2113
• [153] O. Schimmer, R. Knöchel: Comparison of Free Space Reflection and Transmission Time-Domain Measurements for the Determination of the Moisture Content of Bulk Materials, 6th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, Int. Society f. Electromagnetic Aquametry, Weimar, 2005, pp. 197-205
• [154] M. Kent, R. Knöchel, U.-K. Barr, M. Tejada, L. Nunes, J. Oehlenschläger (Eds.): SEQUID - A new Method for Measurement of the Quality of Seafood, ISBN: 3-8322-4159-0, Shaker Verlag, 2005
• [155] Gülck, T. Lehmann, O. Schimmer, R. Knöchel: Non-contacting Localisation of Dielectric Objects with UWB-Pulses, German Microwave Conference, Ulm, 2005, pp. 247-249
• [156] W. Gerhard, R. Knöchel: LINC Digital Component Separator for Single and Multicarrier W-CDMA-Signals, IEEE Trans. Microwave Theory and Techniques, vol. 53, No. 1, 2005, pp. 274-282
• [157] R. Knöchel, W. Taute, C. Döscher: Trough Guide Ring Resonator for Precision Microwave Moisture and Density Measurements, 6th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, Int. Society f. Electromagnetic Aquametry, Weimar, 2005, pp. 251-257
• [158] M. Kent, R. Knöchel, F. Daschner, O. Schimmer, M. Tejada, A. Huidobro, L. Nunes, I. Batista, A. Martins: Determination of the Quality of Frozen Hake Using its Microwave Dielectric Properties, J. Food Science and Technology, 2005, to be published
• [159] F. Daschner, R. Knöchel: Determination of the Composition of Foodstuffs Using Microwave Dielectric Spectra and Multivariate Calibration Methods, in Electromagnetic Aquametry, Electromagnetic Wave Interaction with Water and Moist Substances, Kupfer, Klaus (Ed.), Springer, Heidelberg, 2005, pp. 443-465, ISBN: 978-3-540-22222-4
• [160] M. Kent, R. Knöchel, F. Daschner, O. Schimmer, J. Oehlenschläger, S. Mierke-Klemeyer, M. Kroeger, U.-K. Barr, P. Floberg, M. Tejada, A. Huidobro, L. Nunes, A. Martins, I. Batista, C. Cardoso: Intangible but not Intractable: The Prediction of Food 'Quality' Variables Using Dielectric Spectroscopy, 6th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, Int. Society f. Electromagnetic Aquametry, Weimar, 2005, pp. 347-356
• [161] W. Gerhard, R. Knöchel, T. Schwenck: Neues Systemkonzept für direkt gekoppelte linearisierte W-CDMA Leistungsverstärker nach dem LINC-Verfahren, EEEfCOM, Ulm, 2005
• [162] Gülck, T. Lehmann, R. Knöchel: Characterisation of Dielectric Obstacles Using Ultra-Wideband Techniques, Proceedings of the 35th European Microwave Conference, Paris, 2005, pp. 259-262
• [163] W. Gerhard, R. Knöchel: Prediction of bandwidth requirements for a digitally based WCDMA phase modulated outphasing transmitter, Proceedings of the 8th European Conference on Wireless Technology, Paris, 2005, pp. 97-100
• [164] F. Daschner, R. Knöchel, E. Foca, J. Carstensen, V.V. Sergentu, H. Föll, I.M. Tiginyanu: Photonic Crystals as Host Material for a new Generation of Microwave Components, Advances in Radio Science, 4, 2006, pp. 17-19 (http://www.advances-in-radio-science.net/4/17/2006/ars-4-17-2006.pdf)
• [165] G.Yu. Golubiatnikov, V.N. Markov, A. Guarnieri, R. Knöchel: Hyperfine structure of H2 16O and H2 18O measured by Lamb-dip technique in the 180-560 GHz frequency range, Journal of Molecular Spectroscopy, 240, 2006, pp. 251-254
• [166] Gülck, O. Schimmer, R. Knöchel: Detection, Localisation and Tracking of Foreign Objects Using UWB-Pulses, Proceedings 2nd German Microwave Conference, GeMIC 2006, CD-ROM, Karlsruhe, Germany, March 2006.
• [167] F. Daschner, R. Knöchel, W. Taute, C. Döscher: Feuchte- und Dichtemessung, Präzise und zerstörungsfreie Bestimmung in Echtzeit, GIT Labor-Fachzeitschrift, 11, 2006, pp. 1024-1027
• [168] W. Gerhard, R. Knöchel: Improvement of power amplifier efficiency by reactive Chireix combining, power back off and differential phase adjustment, IEEE MTT-S International Microwave Symposium Digest, San Francisco, 2006, pp. 1887-1890
• [169] W. Gerhard, R. Knöchel: Differentially coupled outphasing WCDMA transmitter with inverse class F power amplifiers, IEEE Radio and Wireless Symposium Digest, San Diego, 2006, pp. 355-358
• [170] O. Schimmer, R. Knöchel: A fast handheld TDR-System based on commercially available hardware, Proceedings of the Mediterranean Microwave Symposium, Genua, 2006, pp. 523-526
• [171] O. Schimmer, R. Plagge, R. Knöchel: Bestimmung von Materialfeuchte im Bauwesen mit Hilfe eines miniaturisierten breitbandigen Zeitbereichsreflektometers, Berichtsband zum Workshop Innovative Feuchtemessung in Forschung und Praxis (IFFP), Karlsruhe, 2006, pp. 15-21
• [172] R. Knöchel, W. Taute: Characteristics of Lumped Element Branch Line Couplers, XVI International Conference on Microwaves, Radar and Wireless Communications, MIKON 2006, Krakow, Poland, May 22-26 2006, pp. 573-576
• [173] E. Foca, H. Föll, J. Carstensen, V.V. Sergentu, I.M. Tiginyanu, F. Daschner, R. Knöchel: Strongly frequency dependent focussing efficiency of a concave lens based on two-dimensional photonic crystals, Applied Physics Letters, 88, 2006, 011102
• [174] W. Gerhard, R. Knöchel: A 2.14 GHz inverse class F Si-LDMOS power amplifier with voltage second harmonic peaking, Proceedings 2nd German Microwave Conference, GeMIC 2006, CD-ROM, Karlsruhe, Germany, March 2006.
• [175] E. Quandt, F. Faupel, R. Knöchel: Toroid microinductors for rf applications using magnetic nanocomposites. 5th International Workshop on High Frequency Micromagnetic Devices and Materials (SMMDM5), Jan 12, 2007, Baltimore, MD 21218 USA, paper 12p3, p. 20
• [176] R. Knöchel, W. Taute, C. Döscher: Stray field ring resonators and a novel trough guide resonator for precise microwave moisture and density measurements, Meas. Sci. Technol. 18, No. 4, April 2007, pp. 1061-1068
• [177] M. Kent, R. Knöchel, F. Daschner, O. Schimmer, J. Oehlenschläger, S. Mierke-Klemeyer, M. Kröger, U.-K. Barr, P. Floberg, M. Tejada, A. Huidobro, L. Nunes, A. Martins, I. Batista, C. Cardoso: Intangible but not intractable: The prediction of fish ’quality’ variables using dielectric spectroscopy. Meas. Sci. Technol., 18, No. 4, April 2007, pp. 1029-1037
• [178] O. Schimmer, B. Oberheitmann, F. Baumann, R. Knöchel: Instantaneous Distinction between double and single frozen Fish using a new handheld Time Domain Reflectometer. The 7th Conference of ISEMA 2007 on Electromagnetic Wave interaction with Water and Moist Substances, Conference Proceedings, Hamamatsu, Japan, April 2007, pp. 167-174
• [179] R. Knöchel, W. Taute, F. Daschner, C. Döscher: Split ring resonators for on-line moisture and mass determination. The 7th Conference of ISEMA 2007 on Electromagnetic Wave interaction with Water and Moist Substances, Conference Proceedings, Hamamatsu, Japan, April 2007, pp. 129-136
• [180] A.V. Lapinov, G.Yu. Golubiatnikov, V.N. Markov, A. Guarnieri: Laboratory Studies of the HNCO Molecular Spectrum for precise Spectroscopy of Dark Clouds. Astronomy Letters, Vol. 33, No. 2, 2007, pp. 121-129
• [181] H. Liu, T. Bai, R. Knöchel, L. Sun, K. Schünemann: Ultra-Wide Stopband Microstrip Low-Pass Filter for Harmonics Suppression. Microwave and Optical Technology Letters, Vol. 49, No. 9, September 2007, pp. 2148-2150
• [182] H. Liu, R. Knöchel, L. Sun, K. Schünemann: Dual-Mode DC-Block Semicircular-Patch Bandpass Filter Using Slot Technique. Microwave and Optical Technology Letters, Vol. 49, No. 9, September 2007, pp. 2261-2263
• [183] R. Knöchel, A. Gülck, F. Daschner and O. Schimmer: UWB-Sensors for Industrial Applications. (Invited paper). 2007 IEEE International Conference on Ultra-Wideband, ICUWB 2007, CD-ROM, Singapore, 24.-26.9.2007
• [184] F. Hettstedt, H. Greve, U. Schürmann, A. Gerber, V. Zaporojtchenko, R. Knöchel, F. Faupel, E. Quandt: Toroid Microinductors with Magnetic Nanocomposite Cores. Proceedings of the 37th European Microwave Conference, Munich, Germany, October 2007, pp. 270-273
• [185] H. Liu, R. Knöchel, L. Sun, K. Schünemann: Miniaturized bandstop filter using meander spurline and capacitively-load stubs. ETRI Journal, Vol. 29, No. 5, 2007, pp. 614-618
• [186] T. Lehmann, F. Hettstedt and R. Knöchel: New Switchable Directional Couplers for Reconfigurable RF-Networks. Proceedings of the 37th European Microwave Conference, Munich, Germany, October 2007, pp. 564-567
• [187] T. Lehmann, F. Hettstedt, R. Knöchel: Reconfigurable PA Networks using Switchable Directional Couplers as RF Switch. Proceedings of the 37th European Microwave Conference, Munich, Germany, October 2007, pp. 1054-1057
• [188] W. Gerhard, R. Knöchel: Novel Transmission Line Combiner for Highly Efficient Outphasing RF Power Amplifiers. Proceedings of the 37th European Microwave Conference, Munich, Germany, October 2007, pp. 1433-1436
• [189] O. Schimmer, A. Gülck, R. Knöchel: Entwurf eines breitbandigen Zeitbereichsreflektometers zur Feuchtemessung. Innovative Feuchtemessung in Forschung und Praxis, Aedificatio Verlag, Freiburg, Germany, pp. 21-27, 2007
• [190] U. Schürmann, H. Greve, F. Hettstedt, A. Gerber, C. Schmitz, R. Knöchel, F. Faupel, E. Quandt: Toroid microinductors for rf applications using polymer based magnetic nanocomposites. IEEE Trans. Magn., to be published