Publikationen des Labors

2026

• L. Ihns, O. Moschner, R. Kronberger: Evaluation of Foaming Materials and Infill Patterns for 3D Printed Dielectric Lens Antennas. Accepted paper EuCAP 2026, Dublin.

   
• M. Heinrichs, A.Sezgin, R.Kronberger: A Scalable Reconfigurable Intelligent Surface with 3 Bit Phase Resolution and High Bandwidth for 3.6 GHz 5G/6G Applications. Accepted paper EuCAP 2026, Dublin.

2025

• Moschner, Heinrichs, Kronberger: New Foaming 3D Printing Filaments with Adjustable Low Permittivity for Printing Gradient Index (GRIN) Lens Antennas; Proceedings of  International Symposium on Antennas and Propagation ISAP2025, Fukuoka, Okt. 2025.

• F. Reher; H.Jensen; M. Heinrichs; T. Nowack; M. Pourjafarian; R.Kronberger, "Bistatic Polarimetric Measurements of Reconfigurable Intelligent Surfaces," 2025 16th German Microwave Conference (GeMiC), Dresden, Germany, 2025, pp. 310-313, doi: 10.23919/GeMiC64734.2025.10979180. 

• Banko, Timo; Grünwald, Stefan; Kronberger, Rainer; Seitz, Hermann: In-situ Embedding of Isotropic Conductive Adhesives in FFF : A Single-step Approach to Additively Manufactured Electronics. In: Materials and Design, Band 255 (2025), Artikel 114215

2024

• R. Kronberger, O. Moschner, I. Kocabasa, T. Banko and S. Grünwald, "On Printing Small Antennas into Spatial Structures," 2024 IEEE Asia-Pacific Microwave Conference (APMC), Bali, Indonesia, 2024, pp. 988-990, doi: 10.1109/APMC60911.2024.10867525.
• G. Li, P. Staat, H. Li, M. Heinrichs, C. Zenger, R. Kronberger, H. Elders-Boll, C. Paar, A. Hu, "RIS-Jamming: Breaking Key Consistency in Channel Reciprocity-Based Key Generation," in IEEE Transactions on Information Forensics and Security, vol. 19, pp. 5090-5105, 2024, doi: 10.1109/TIFS.2024.3389569.
• O. Moschner, I. Kocabasa, Á. V. Tebar, F. Pirlet and R. Kronberger, "Low-Cost Additively Manufactured High-Gain Millimeter-Wave Parabolic Reflector Antenna With Waveguide Double-Dipole Feed: Millimeter Waves meet Additive Manufacturing," in IEEE Microwave Magazine, vol. 25, no. 12, pp. 128-136, Dec. 2024, doi: 10.1109/MMM.2024.3458590.

2023

• Markus Heinrichs, Aydin Sezgin, Rainer Kronberger, "Open Source Reconfigurable Intelligent Surface for the Frequency Range of 5 GHz WiFi", Proceedings of  International Symposium on Antennas and Propagation ISAP2023, Kuala Lumpur, Nov. 2023.
  This paper was awarded with "Best conference Paper award"
   
• Markus Heinrichs, Florian Pirlet, Rainer Kronberger, " Measurement System and Methodology for RIS-Evaluation", Proceedings of  International Symposium on Antennas and Propagation ISAP2023, Kuala Lumpur, Nov. 2023.
   
• Timo Banko, Stefan Grünwald, Rainer Kronberger, Herrmann Seitz,
  A Printing Strategy for Embedding Conductor Paths into FFF Printed Parts, Polymers 2023, 15(17), 3498; https://doi.org/10.3390/polym15173498 - 22 Aug 2023.
   
• S. Tewes, M. Heinrichs, K. Weinberger, R. Kronberger and A. Sezgin, "A comprehensive dataset of RIS-based channel measurements in the 5GHz band," 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring), Florence, Italy, 2023, pp. 1-5, doi: 10.1109/VTC2023-Spring57618.2023.10200973.
   
• K. Weinberger, S. Tewes, M. Heinrichs, R. Kronberger and A. Sezgin, "RIS-Based Channel Modeling and Prototypical Validation," WSA & SCC 2023; 26th International ITG Workshop on Smart Antennas and 13th Conference on Systems, Communications, and Coding, Braunschweig, Germany, 2023, pp. 1-6.
   
• S. Tewes, M. Heinrichs, R. Kronberger and A. Sezgin, "IRS-Enabled Breath Tracking With Colocated Commodity WiFi Transceivers," in IEEE Internet of Things Journal, vol. 10, no. 8, pp. 6870-6886, 15 April15, 2023, doi: 10.1109/JIOT.2022.3228158.

2022

• P. Staat, S. Mulzer, S. Roth, V. Moonsamy, M. Heinrichs, R. Kronberger, A. Sezgin, C. Paar:  IRShield: A Countermeasure Against Adversarial Physical-Layer Wireless Sensing,
  DO  - 10.1109/SP46214.2022.98336762022 IEEE Symposium on Security and Privacy (SP), 22-26 May 2022.
   
• S. Tewes, M. Heinrichs, P. Staat, R. Kronberger and A. Sezgin, Full-Duplex meets Reconfigurable Surfaces: RIS-assisted SIC for Full-Duplex Radios, ICC 2022 - IEEE International Conference on Communications, 2022, pp. 1106-1111, doi: 10.1109/ICC45855.2022.9839223.
   
• S. Tewes, M. Heinrichs, R. Kronberger and A. Sezgin, "IRS-enabled Breath Tracking with Colocated Commodity WiFi Transceivers," in IEEE Internet of Things Journal, doi: 10.1109/JIOT.2022.3228158.

2021

.

• P. Staat, H. Elders-Boll, M. Heinrichs, R. Kronberger, C. Zenger and C. Paar: Intelligent Reflecting Surface-Assisted Wireless Key Generation for Low-Entropy Environments," 2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2021, pp. 745-751, doi: 10.1109/PIMRC50174.2021.9569556.

2020

• S.Grünwald, R.Kronberger, V.Wienstroer, A.Büter, V.Tsatsos: Kunststoffteile mit integrierten Silberleitstrukturen via FDM-Druck. in Elektronik Praxis, Ausgabe 21/2020, S.60-62, ISSN 0344-1733.
• R.Kronberger, S. Grünwald, V.Wienstroer, V.Tsatsos: 3D-Druck für Hochfrequenztechnische Anwendungen. in HF-Praxis Fachzeitschrift für HF- und Mikrowellenanwendungen, 11/2020 S. 18-21, ISSN 1614-743X.
• M.Heinrichs and R.Kronberger. Digitally Tunable Frequency Selective Surface for a Physical Layer Security System in the 5 GHz Wi-Fi Band. Proceedings of International Symposium on Antennas and Propagation ISAP 2020, Osaka, Jan. 2021.
• R.Kronberger, S. Grünwald, V.Wienstroer, V.Tsatsos: New Low-Cost FDM Technology for Printing Antennas. Proceedings of  International Symposium on Antennas and Propagation ISAP2020, Osaka, Jan. 2021.
• M. Heinrichs and R. Kronberger, "Component Linearity and Power Efficiency: A Sub-Six 5G Flexible Low-Interference Receiver," in IEEE Microwave Magazine, vol. 21, no. 4, pp. 87-92, April 2020, doi: 10.1109/MMM.2019.2963610.
• M. Heinrichs and R. Kronberger, "High-Efficiency Power Amplifier for 1.8 MHz: The Development of a Class-E PA With Components for High Efficiency," in IEEE Microwave Magazine, vol. 21, no. 1, pp. 67-72, Jan. 2020, doi: 10.1109/MMM.2019.2945159.

2019

• J. R. Sanchez, V. Nova, C. Bachiller, B. Villacampa, A. de la Rua, R. Kronberger, F. Penaranda, V. E. Boria Measurement of the dielectric properties of liquid crystal material for microwave applications 17th International Conference on Microwave and High Frequency Heating, 2019 Valencia, Spain

• R. Kronberger, D. Gottradi, M. Heinrichs, V. Wienstroer, Animal Body Model to Improve the Development of UHF RFID Transponders for Animal Detection, 2019 IEEE Conference on RFID Technology and Applications, Pisa.

• J. R. Sanchez, V. Nova, C. Bachiller, B. Villacampa, A. de la Rua, R. Kronberger, F. Penaranda-Foix, V. E. Boria  Characterization of Nematic Liquid Crystal at Microwave Frequencies Using Split-Cylinder Resonator Method, 2019 IEEE

• R. Kronberger, Automotive Antennas for Current and Future Communication Services, 2019 Asia-Pacific Conference on Antennas and Propagation, Incheon, Korea

2018

• P. Soboll, W. Simon, T.Liebig, D., M., R.Kronberger EM Simulation Based on State of the Art CAD Data Conversion and Simplification Techniques EuCAP 2018, London, 2018

• Markus Heinrichs, Niklas Bärk, Rainer Kronberger Decreasing Size, Increasing Battery Life: A Wide-Band, Low-Noise Amplifier for 5G Multistandard Broadband Communications IEEE Microwave Magazine. Year:2018, Volume: 19, Issue: 2, Pages 77 - 82 IEEEJournals & Magazines

2017

• Soboll, Patrick; Kronberger, Rainer (2017): 3D Printed Frequency Selective Surfaces for Microwave Absorbers. In: Forum for Electromagneti Research Methods and Application Technologies (FERMAT) Jg. 21. Online verfugbar unter https://www.e-fermat.org/files/ communication/Kronberger-COMM-ISAP2016-2017-Vol21-May-Jun.-013.pdf

• Soboll, Patrick; Wienstroer, Volker; Kronberger, Rainer (2017): A Multitude of RFID Tags. A Broadband Design for Stackable Applications. In: IEEE Microwave Magazine Jg. 1 Nr. 18, S. 107–111. Online unter https://ieeexplore.ieee.org/document/7779283/

2016

• P. Soboll, V. Wienstroer, R. Kronberger, “Smooth Moves in Power Transition: New Yagi-Uda Antenna Design for Wireless Energy”, IEEE Microwave Magazine, vol. 17, no. 5, Digital Object Identifier: 10.1109/MMM.2016.2525120, pp. 75-80, May 2016

• Patrick Soboll, R. Kronberger, “New 3 D-Printed Frequency Selective Surfaces for Microwave Absorbers”, Proceedings of ISAP2016, Okinawa, Japan

• Patrick Soboll, R. Kronberger, “New 3 D Printed Microwave Metamaterial Absorbers with Conductive Printing Materials”, Proceedings of the 46th European Microwave Conference, 4-6 Oct 2016, London

• S. Bohlscheid, V. Wienstroer, A. de la Rua, A. Julia, and R. Kronberger, “New Ultra-Thin Absorber for UHF RFID”, IEEE International Conference on RFID, Orlando FL, May 2016.

• P. Soboll, V. Wienstroer, and R. Kronberger, “Innovating RFID for Future Applications: A Capacitive Coupled Antenna Design for UHF RFID Application”, IEEE Microwave Magazine, vol. 17, no. 2, Digital Object Identifier: 10.1109/MMM.2015.2498083, pp. 65-69, Feb. 2016.

• R. Kronberger, U. Dettmar, C. Hudasch, R. Lerche, M. Cremer, and A. Pervez, ”A Transmitter Beamforming System for the Localization of Passive RFID Tags”, in IEEE Radio and Wireless Week, Austin, Texas, January 2016, pp. 1-4.

2015

• M. Cremer, U. Dettmar, C. Hudasch, R. Kronberger, R. Lerche, A. Pervez, ”Measurement Results for Multichannel Transmit Beamforming Tag Direction Detection in Passive Ultra-High Frequency Radio-Frequency Identification Systems”, in IET Electronics Letters, Volume 51, Issue 21, October 2015, pp. 1632-1634.

• M. Cremer, U. Dettmar, C. Hudasch, R. Kronberger, R. Lerche,  A. Pervez, ”Localization of Passive UHF RFID Tags Using the AoAct Transmitter Beamforming Technique”, in IEEE Sensors Journal, Volume 16, Issue 6, June 2015, pp. 1-9.

• Rainer Kronberger, Uwe Dettmar, Carsten Hudasch, Robin Lerche, Markus Cremer, and Anjum Pervez, ”Multichannel Digital Transmit Beamforming Experiments for RFID Tag Localization”, in International EURASIP Workshop on RFID Technology, pp. 126-131., Rosenheim, Germany, October 2015,

• M. Cremer, A. Pervez, U. Dettmar, C. Hudasch, T. Knie, R. Kronberger, R. Lerche, ”Transmit Beamforming for Angle-of-Activation (AoAct) Estimation in Passive UHF RFID Systems”, in IEEE International Conference on RFID-Technologies and Applications, Tokyo, Japan, September 2015, pp. 1-7.

• M. Cremer, U. Dettmar, R. Kronberger, A. Pervez: Modeling of the Passive UHF RFID Multipath Channel for Tag Read Region Estimation. International Journal of Wireless Information Networks, ISSN 1068-9605, Vol. 22, Issue 3(2015), Page 188 – 204, DOI 10.1007/s10776-015-0278-8, Springer, July 2015.

• Julia Lopez Barrantes, R. Kronberger, B. Kronberger: Modelling Software for Radar Clutter Simulation on Complex Structures. Proceeding of International Symposium on Radar , Dresden, June 2015.

• R. Kronberger, V. Wienstroer, A. Julia Lopez Barrantes, B. Kronberger: Development of Flat Panel Absorber Made and Verification of the Improvement of Unwanted Radar Clutter by Simulation. Proceeding of International Symposium on Radar , USA, May 2015.

• P. Soboll, V. Wienstroer, and R. Kronberger, “Stacked Yagi-Uda Array for 2.45 GHz Wireless Energy Harvesting”, IEEE Microwave Magazine, vol. 16, no. 1, Digital Object Identifier: 10.1109/MMM.2014.2367858, pp. 67-73, Feb. 2015.

2014

• C. Stedler, V. Wienstroer, R. Kronberger: Noise Investigation of an Active Non-Foster Matching Network for Small Antennas. Proc. of International Symposium on Antennas and Propagation ISAP 2014, Kaoshiung, Taiwan, Nov. 2014.

• R. Kronberger, V. Wienstroer, B. Kronberger: Thin Metamaterial Absorner Made of Randomely Distribiuted Cut Carbon Sticks. Proceeding of International Symposium on Antennas and Propagation ISAP 2013, Kaoshiung, Taiwan, Nov. 2014.

• M. Cremer, A. Pervez, U. Dettmar, T. Knie, and R. Kronberger: Improved UHF RFID Localization Accuracy Using Circularly Polarized Antennas, IEEE International Conference on RFID-Technologies and Applications (RFID-TA), 2014. Tampere, Finland, September 2014.

• C. Stedler, V. Wienstroer, R. Kronberger: Noise Performance of an Antenna Matching Network with Negative-Impedance Converter (NIC). European Conference on Antennas and Propagation, EUCAP 2014, Amsterdam, März 2014.

• C. Stedler, M. Kuntsev, R. Kronberger: Broadband, Rugged High Linearity, Low Noise Amplifier Module. Microwave Magazine, IEEE Volume: 15 , Issue: 1, Digital Object Identifier: 10.1109/MMM.2013.2288714 Jan. 2014.

2013

• U. Dettmar, R. Kronberger, T. Knie, M. Cremer, and C. Hudasch: Passive UHF RFID Transponders for Switching and Controlling, IEEE International Conference on RFID-Technologies and Applications (RFID-TA), Malaysia, September 2013.

• R. Kronberger, S. Werker: Simulation, Design and Measurement of a Shortwave Antenna under Consideration of the Environment. IEEE International Symposium on Antennas and Propagation (APSURSI 2013), Orlando, USA, Juli 2013.

• Cremer, Pervez, Knie, Dettmar, Kronberger: Using a Circularly Polarized Patch Antenna to Optimize the Passive UHF RFID Indoor Channel IEEE International Symposium on Antennas and Propagation (APSURSI), Orlando, USA, Juli 2013.

• Cremer, Pervez, Dettmar, Knie, Kronberger, An improved channel model for passive UHF RFID systems. 2013 IEEE International Conference on RFID-Technologies and Applications (RFID-TA), 10.1109/RFID-TA.2013.6694511, Malaysia, September 2013.

• C. Stedler, S. Werker, R. Kronberger: Rugged High Linearity, Low Noise Amplifier for 1.57-GHz GPS Band. Microwave Magazine, IEEE Volume: 14 , Issue: 1, Digital Object Identifier: 10.1109/MMM.2012.2226622, Jan. 2013.

• M. Cremer, A. Pervez, U. Dettmar, T. Knie, O. Kronberger,"Using a Circulary Polarized Patch Antenna to Optimize the Passive UHF RFID Indoor Channel, IEEE 2013.

• M. Cremer, A. Pervez, U. Dettmar, T. Knie, O. Kronberger,"Simulation and Measurement Results for the UHF RFID Indoor Channel", 2013

Publikationen 2012

• Lopez-Barrantes, A.; Gutierrez, O.; Adana, F.S.D.; Kronberger, R: Comparison of empirical models and deterministic models for the analysis of interference in indoor environments. Asia-Pacific Symposium on Electromagnetic Compatibility (APEMC 2012), Digital Object Identifier: 10.1109/APEMC.2012.6237911, p 509 – 512, 2012.

• S. Werker, C. Stedler, R. Kronberger: Highly Linear Low Noise Amplifier for 2.45 GHz. Microwave Magazine, IEEEVolume: 13 , Issue: 1 Digital Object Identifier: 10.1109/MMM.2011.2174124, p146 – 151, USA, Feb. 2012.

Publikationen 2011

• Kronberger, Leonardi, Knie, Dettmar, Cremer,  Azzouzi: Design and Measurement Results of an UHF Localization System (Invited paper). 4th International Symposium on Applied Sciences in Biomedical and Communication Technologies, 26.-29. Barcelona, Okt. 2011.

• Azzouzi, Cremer, Dettmar, Knie, Kronberger: Improved AoA based localization of UHF RFID tags using spatial diversity. 2011 IEEE International Conference onRFID-Technologies and Applications (RFID-TA),Digital Object Identifier: 10.1109/RFID-TA.2011.6068634, p. 174 – 180, Barcelona, Spain, Oct. 2011.

• Kronberger, Knie, Leonardi, Dettmar, Cremer, Azzouzi: UHF RFID localization system based on a phased array antenna. 2011 IEEE International Symposium on Antennas and Propagation (APSURSI), Digital Object Identifier: 10.1109/APS.2011.5996761, p. 525 – 528, Spokane, USA, July 2011.

• Azzouzi, Cremer, Dettmar, Kronberger, Knie: New measurement results for the localization of UHF RFID transponders using an Angle of Arrival (AoA) approach. 2011 IEEE International Conference on RFID, Digital Object Identifier: 10.1109/RFID.2011.5764607, p. 91 – 97, Orlando, USA, April 2011.

• Kronberger, Wienstroer, Friedmann: UHF RFID Chip Impedance Measurement without Vector Network Analyzer. Progress In Electromagnetics Research Symposium PIERS 2011, p. 678, Marakech, Marocco, March 2011.

• Musolff, Neuberger, Kronberger: Amplifier Sequenced Hybrid Receiver. Microwave Magazine, IEEEVolume: 12 , Issue: 1, Digital Object Identifier: 10.1109/MMM.2010.939317,p. 94 – 98, USA, Feb. 2011.

• R. Kronberger, T. Knie, R. Leonardi, U. Dettmer, M. Cremer, S. Azzouzi, "UHF RFID Localization System Based on a Phased Array Antenna". IEEE 2011.

Publikationen 2010

• Kronberger, Wienstroer, Friedmann: Gain Determination of Small UHF RFID Antenna Structures. Proc. of International Symposium on Antennas and Propagation ISAP 2010, Macau, Nov. 2010.

• Kronberger, Wienstroer, Friedmann: Antenna Gain Measurement of Small RFID Tag Antennas. International Conference on Antennas and Propagation IEEE AP-S/URSI 2010, Toronto, Canada, Juli 2010.

• Michalski, Wienstroer, Kronberger: Optimization of MIMO-Beamforming and Null-Steering on Small, Wireless Terminals. International Conference on Antennas and Propagation IEEE AP-S/URSI 2010, Digital Object Identifier:  10.1109/APS.2010.5560923, p. 1 – 4,Toronto, Canada, Juli 2010.

• Kronberger, Friedmann, Geissler: New Methods to determine the Impedance of UHF RFID Chips. 2010 IEEE International Conference on RFID,Digital Object Identifier: 10.1109/RFID.2010.5467251,p. 260 – 265, Orlando, USA, April 2010.

• Werker, Wienstroer, Kronberger: Helix Antenna with Parasitic Element for Axial Ratio Improvement. 2010 Proceedings of the Fourth European Conference onAntennas and Propagation (EuCAP), p 1 – 4, Barcelona, Spanien, April 2010.

• Lopez-Barrantes, Gutierrez, Saez de Adana, Kronberger: Comparison between Empirical and Deterministic Models to Predict the Propagation Losses in Indoor Scenarios. Progress In Electromagnetics Research Symposium PIERS  2010, Xi'an, China, March 2010.

• T. Michalski, R. Kronberger, "Investigations on broadband circular patch antennas", ISAP 2010

Publikationen 2009

• Saez de Adana, Fernandez, Loranca, Kronberger, R.: Covermap: Computer tool to calculate the propagation in open areas importing data from GoogleMaps.de. Antennas & Propagation Conference, 2009. LAPC 2009. Page(s): 229 - 232 Loughborough, England 2009.

• Kronberger, Friedmann, Michalski, Werker, Wienstroer: RFID Measurements and Investigations on the Antenna-Chip-Alignment. Proc. of International Symposium on Antennas and Propagation ISAP 2009, Bangkok, Thailand, Okt. 2009.

• Kronberger, Michalski, Wienstroer: MIMO Requirements and Capabilities with Modern Communication Terminals. Proc. of International Symposium on Antennas and Propagation (ISAP 2009), Bangkok, Thailand, Okt. 2009.

• Lopez-Barrantes, Gutierez-Blanco, Saez de Adana, Kronberger: Diferencias entre un modelo de propagation empirico y otrodeterministapara el calculo de propagacion en interiores. XXiV Simposium Nacional de la Union Cientifica International de Radio, p 342, ISBN 978-84-8102-550-7, Santander, Spanien, August 2009.

• Kronberger, Michalski, Wienstroer, Geissler: Smart Terminal Antennas for MIMO Applications. Proc. of International Conference on Antennas and Propagation IEEE AP-S/URSI 2009, p. IF117.6, ISBN 978-1-4244-3647-7, Charleston, USA.           

• Geissler, Wienstroer, Kronberger: MIMO Efficiency of an LTE Terminal Considering Realistic Antenna Models. Proc. of International Workshop on Smart Antennas (WSA 2009), p. 14 - 18 , ISBN 3-923613-41, Berlin, 2009.

• Werker, Birk, Kronberger: Modified Corner Reflector Antenna for Shortwave under Consideration of Building Properties. Proceedings of the 25th Annual Review of Progress in Applied Computational Electromagnetics (ACES), p. 541 - 546, Monterey, USA, March 2009.

• Musolff, Neuberger, Kronberger: Student Competition for Low Power Consumption FM-Receiver Design. Microwave Magazine, IEEE,Volume: 10(1), p. 133 - 137, ISSN: 1527-3342, USA, 2009.

• Michalski, Wienstroer, Kronberger: Beam forming capabilities of smart antennas on mobile terminals. Proc. of 3rd European Conference on Antennas and Propagation (EuCAP) 2009, p. 1608 - 1611, ISBN: 978-1-4244-4753-4, Berlin.

• Michalski, Friedmann, Kronberger: A Completely Mechanical Adjustable 2 GHz Low-Pass Filter. Microwave Magazine, IEEE, Vol. 10(1), p. 140 - 145, ISSN: 1527-3342, USA, 2009.

Publikationen 2008

• Michalski, Kronberger: Investigations on circular broadband patch antennas. Proc. of International Symposium on Antennas and Propagation ISAP 2008, p. 224-227, ISBN 978-986-84787-0-1, Taipeh, Oktober 2008.

Publikationen 2005

• R.Kronberger: Antennas for Diversity Operation in Mobile Communication Terminals. XII. Deutsch-polnisches Wissenschaftsseminar, Köln, Juni 2005.