Publications

2023

• Yash Fafolawala, Axel Bangert, and Samaneh Moeini

  Machine-learning based microwave ghost imaging using reconfigurable metasurface
  Conference: Functional Materials: Advances and Applications
  Symposium: PX23 SPIE Photonex, Glasgow, 2023

2022

• M.S. Anwar, F. Ehlers, A. Bangert
  Experimental Analysis of Liquid Metal Galinstan for Electronics Actuation
  Electronics Letters, 05.06.2022

2021

• Sara Blazquez-Belloa, Yolanda Campos-Roca, Axel Bangert and Carl Sandhagen    
  Impact of Substrate and Bending Angle on the Performance of Microwave Reflection-mode PCB
  Resonators for Permittivity Measurements, Measurement Volume 175, April 2021

2019

• Muhammad S.Anwar and Axel Bangert     
  Broadband Antenna Simulation and Practical Challenges - Factors Influencing Poor Mismatch between Simulated and Measured Results , The International Workshop on Antenna Technology (iWAT - 2019) Miami, FL,March 3rd-6th 2019                                                                       

2018

• Venkata N.R. Kilaru, Raid J. Hadi, H. Abufanas, C. Sandhagen, A. Bangert
  Design of a Dual-Band Bow-Tie Slot Antenna with Two Feeds for Radiometric Medical Applications,  SPACES 2018, 4.-5. January, Vijayawada, India

• Ruddy Herard Chatim, Carl Sandhagen, Axel Bangert
  RF MEMS Tunable Capacitor for Voltage-Controlled Oscillator Application in C-Band Range, MMS 2018 The 18th Mediterranean Microwave Symposium
  31 Oct. - 2 Nov. 2018, Istanbul, Turkey

2017

• C. Hoyer, “Ultra low cost 24 GHz CW Doppler Radar System”,
  Poster 2017,Prague Mai 23
   
• Yolanda Campos-Roca, Belén Amado-Rey, Sandrine Wagner, Arnulf  Leuther, Axel Bangert, Rafael Goméz-Alcalá, Axel Tessmann “Efficient EM Simulation of GCPW Structures Applied to a 200-GHz mHEMT Power Amplifier MMIC”, Springer Science+Business Media NY, 2017
   
• M. S. Anwar and A.Bangert, 3D Printed Microfluidics-Based Reconfigurable Antenna, IEEE MTT-S IMWS-AMP 2017 (International Microwave Workshop Series on Advanced Materials and Processes) 20 - 22 Sept 2017, Pavia, Italy

2016

• R. Lehna, A. Bangert
  Practical In-Fixture Measurement Technique for Narrowband Microwave Sub-Circuits, MMS 2016
   
• Muhammad M. Usmani,Raid J. Hadi, C. Sandhagen, A. Bangert
  Design of a Two-LNAs-Switch-Module for Biomedical Applications in an L-Band Radiometric System, MMS 2016
   
• Raid J. Hadi, H. Abufanas, C. Sandhagen, A. Bangert
  Novel Wideband Multi-Layer Archimedean Spiral
  Antenna with Integrated Coupler for Radiometric
  Measurement in Medical Applications, EUCap 2016
   
• R. Lehna, A. Bangert
  Novel Output Combiner for Three-Way Doherty Power Amplifiers, EuMC 2016

2015

• Hasan Abufanas, Raid J. Hadi, Carl Sandhagen, and Axel Bangert
  New Approach for Design and Verification of a Wideband Archimedean Spiral   Antenna for Radiometric Measurement in Biomedical Application,GeMiC 2015

2014

• Raid J. Hadi, Carl Sandhagen and Axel Bangert
  Wideband High-Gain Multi-Layer Patch Antenna-Coupler with Metamaterial    Superstrate for X-Band Applications, EuMC 2014

2013

• R. Chatim, R. Ghahremani, A. Zamudio, C. Sandhagen, A. Bangert, V. Viereck,   A. Jaekel, H. Hillmer
  RF MEMS Capacitor for Microwave Applications, International Conference of  Information and Communication Technology (ICoICT), March 2013, Indonesia

• Ahmet Mali, Raid Hadi, M. Mohsin Khan, Carl Sandhagen, Axel Bangert  Enhancement of X Band Planar Antenna Parameters with Zero IndexMetamaterial, International Workshop on Antenna Technology (iWAT), 2013, Germany

   

2012

• R. Chatim, V. Viereck, A. Jaekel, C. Sandhagen, A. Bangert
  Mechanical Model of RF MEMS Capacitor Structures,
  COMSOL Conference Milan, pp. 1-4, October 2012,Italy

• Belal Al-Qudsi, Ahmed Abbas H. Ameri, Axel Bangert
  Low cost highly precision time interval measurement unit for radar
  applications
  German Microwave Conference, pp. 1-4, Germany

2011

• Ahmed Abbas H. Ameri, G. Kompa, A. Bangert
  650 W Pulse Generator for Ultra-Wideband (UWB) Radar Application
  German Microwave Conference, pp. 1-4, 2011, Germany

• Ahmed Abbas H. Ameri, G. Kompa, A. Bangert
  Study About TEM Horn Size Reduction for Ultra-Wideband Radar  Application, German Microwave Conference, pp. 1-4, 2011, Germany

• Ahmed Abbas H. Ameri, G. Kompa, A. Bangert
  Balanced Pulse Generator for UWB Radar Application
  European Radar Conference, pp. 198-201, UK

• Rui Ma, Günter Kompa, Axel Bangert
  A Novel Concept for First-Pass Design of RF Power Amplifiers for Wireless  Communications,  IEEE Symposium on Wireless Technology and Applications(ISWTA), September 2011, Langkawi, Malaysia

2010

• Wittwer, B.; Srinidhi, E.R.; Kompa, G.; Bangert, A.
  ACP and IMD3 measurement and comparison using a novel load-pull    system, Microwave Conference (EuMC), 2010 European pp.1568-1571,
  28-30 Sept. 2010
   
• Rui Ma, G. Kompa, A. Bangert
  Concept of Partitioning Design for First-Pass Success Realization of Complex Linear RF Power Amplifiers for BTS
  IEEE Topical Symposium on Power Amplifiers for Wireless Communications
  Power Amplifier Symposium, September 2010, San Diego, USA
   
• A. Zamudio-Flores and G. Kompa
  Improved Measurement-Based Extraction Algorithm of a Comprehensive Extrinsic Element Network for Large-Size GaN HEMTs
  40th European Microwave Conference, EuMIC 2010, pp. 250 - 253.
  September 28th - 30th, 2010, Paris, France
   
• J. A. Zamudio-Flores, S. Dahmani and G. Kompa
  Large-signal modelling of large-size GaN HEMTs with a comprehensive extrinsic elements extraction algorithm.
  International Journal of Microwave and Wireless Technologies,
  vol. 2, no. 1, pp. 63 - 73, February 2010

2009

• Embar R. Srinidhi, Rui Ma, Günter Kompa, and Axel Bangert
  Device Inherent IMD Reproducibility Issues in GaN HEMTs, EuMA, Italy,2009

1991-2008

• E. R. Srinidhi, R. Ma, and G. Kompa:
  Application Rules for Accurate IMD Characterization in GaN HEMTs.
  Proc. of German Microwave Conference (GeMIC), March 2008, pp. 171-174.
   
• S. Dahmani, E. Mengistu, and G. Kompa:
  Electro-Thermal Modeling of Large-Size GaN HEMTs.
  German Microwave Conference - GeMiC 2008, Hamburg, Germany, March 10-12, 2008.

• C. Curran, B. Wittwer, E. R. Srinidhi, and G. Kompa:
  Highly Integrated Multi-Harmonic Tuner for Broadband High Power Source/Load-Pull System.
  Proc. of German Microwave Conference (GeMIC), March 2008, pp. 179-181.

• M. S. H. Monsi:
  Efficient Wireless Level Identification Technique based on Discrete Electromagnetic Coupling and Radiation.IEEE CPS (SENSORCOMM08), to be published in August, 2008.

• M. S. H. Monsi:Wireless Level Detection and the Relative Variation of Discrete Radio Frequency Field.International conference on R. F. and signal processing systems, RSPS- 2008., February 2008.

• M. S. H. Monsi:
  Radio Frequency- Wireless Level Detection System by using Spatial Field Attenuation.
  IEEE CPS, 2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007), October 2007, pp. 405-410.

• E. R. Srinidhi, R. Ma, and G. Kompa:
  Volterra Series Based Distortion Analysis for Optimization of Out-of-Band Terminations in GaN HEMT Devices.
  IEEE Electron Device Letters, Vol. 29, No. 1, Jan. 2008, pp. 24-27.

• E. R. Srinidhi, R. Ma, A. Z. Markos, and G. Kompa:
  Optimization of Broadband Drain Modulation in GaN HEMT Devices.
  IEEE Proc. of Radio and Wireless Symposium (RWS), Orlando, FL, January 2008, pp. 81-84
   
• S. Dahmani:
  Thermal Model Extraction of GaN HEMTs for Large-Signal Modeling.
  Submitted to European Microwave Conference - 2008.

• Embar. R. Srinidhi and Günter Kompa:
  Investigation of IMD3 in GaN HEMT Based on Extended Volterra Series Analysis.
  Proc. of European Microwave Integrated Circuits (EuMIC) Conference, Munich, Germany, October 2007, pp. 52-55.

• E. R. Srinidhi, A. Jarndal, and G. Kompa:
  A New Method for Identification and Minimization of Distortion Sources in GaN HEMT Devices Based on Volterra Series Analysis.
  IEEE Electron Device Letters,Vol. 28, No. 5, May 2007, pp. 343-345.
   
• M. Meyer, H. Velte, H. Lindenborn, A. Bangert, D. Dahlhaus, P. Albers:
  Radiofrequency ablation of renal tumors improved by a preoperative ex vivo computer simulation model.
  Journal of Endourology, 2007.
   
• A. Bangert:
  Einsatz von Simulationstools im Bereich des HF-Schaltungsentwurfs.
  ASIM-Fachgruppentreffen, Bremen, Februar 2007.

• E. R. Srinidhi, B. Bunz, B. Wittwer, and G. Kompa:
  Multi-Tone Based AM-AM and AM-PM PA Characterization.
  Proc. of TARGET DAYS Tutorial, Via Frascati, Italy, October 2006, pp. 49-52.

• D. Silveira, M. Gadringer, P. L. Gilabert, G. Montoro, Y. Lei, E. R. Srinidhi, V. Camarchia, M. Pirola,, G. Magerl, E. Bertran, A. A. Goacher, M. O’Droma, G. Kompa, S. Donati:
  Comparison of RF Power Amplifier Behavioural Models Estimated from Shared Measurement Data.
  Proc. of TARGET DAYS Tutorial, Via Frascati, Italy, October 2006, pp. 129-132.

• E. R. Srinidhi, A. Ahmed, and G. Kompa:
  Power Amplifier Behavioral Modeling Strategies Using Neural Network and Memory Polynomial Models.
  Microwave Review Journal- Vol. 12, No.1, June 2006, pp. 15-20.

• A. Ahmed, B. Bunz, E. R. Srinidhi, and G. Kompa:
  Effect of the Short Envelope Termination on the Measured Memory Effect in GaN HEMT Power Device.
  IEEE Topical Workshop on Power Amplifiers for Wireless Communications, San Diego, CA January 2006.

• A. Ahmed, B. Bunz, E. R. Srinidhi, and G. Kompa:
  Measurements of Envelope Frequency Dependent Nonlinearity in GaN HEMT Power Device.
  International Nonlinear Microwave and Millimeterwave Integrated Circuits (INMMIC'06) Workshop. Aveiro, Portugal, January 2006.
   
• S. Dahmani:
  Low Power Design Techniques.
  Work shop, TEMPUS Program, Oran, Algeria. Collaboration with CDTA, Algiers, Algeria. Dec 2005.

• A. Ahmed, E. R. Srinidhi, and G. Kompa:
  Neural Network and Memory Polynomial Methodologies for PA Modeling.
  IEEE Proc. of 7th International Conf. on Telecommunications in Modern Satellite (TELSIKS’05), Serbia & Montenegro, September 2005, pp. 393-396.

• A. Ahmed, E. R. Srinidhi, and G. Kompa:
  Envelope Frequency Dependent TDNN Power Amplifier Model.
  Top Amplifier Research Groups in an European Team (TARGET) Tutorial on Transmitter Design, Athens, Greece, September 2005.

• A. Ahmed, E. R. Srinidhi, and G. Kompa:
  Efficient PA Modeling Using Neural Network and Measurement Set-Up for Memory Effect Characterization in the Power Device.
  IEEE MTT-S Int. Microwave Symp. Dig., WE1D-5, Long Beach, CA, June 2005.

• A. Ahmed, E. R. Srinidhi, and G. Kompa:
  Comparison Between Memory Polynomial and  Neural Network Models for PA Modeling.
  Top Amplifier Research Groups in an European Team (TARGET) Workshop on RF Power Amplifier, Orvieto, Italy, April 2005, pp. 83-86.

• T. Kusserow, M. Augustin, A. Tünnermann, A. Bangert:
  Zweidimensionale Photonische Kristalle für den sichtbaren Spektralbereich.
  DPG-Frühjahrstagung, Postersitzung AKFH 1, Berlin, März 2005.
   
• S. Dahmani:
  Layout and structures for RF Integrated Inductors.
  Research Report, microelectronics Laboratory, ‘Centre de Développement des Technologies Avancées’, Algiers, Algeria. Nov 2001.

• A. Bangert:
  HF-Aspekte bei Bluetooth, HomeRF und wireless Ethernet.
  Embedded Intelligence 2001, Session Wireless Communication, Nürnberg, Februar 2001.
   
• S. Dahmani, M. T. Belaroussi, R. Aksas:
  Wireless and RF Integrated Inductor Characterization and Design In Silicon Technology.
  The First International Conference on Electrical Engineering ICEE University of Boumerdes, Algeria. 4-6 Nov 2000.
   
• S. Dahmani:
  Silicon RF Integrated Inductors: Analysis and design.
  Research Report, microelectronics Laboratory, "Centre de Développement des Technologies Avancées", Algiers, Algeria. Nov 1999.

• W.H. Haydl, M. Neumann, L. Verweyen, A. Bangert, S. Kudszus, M. Schlechtweg, A. Hülsmann, A. Tessmann, W. Reinert, T. Krems:
  Single-Chip Coplanar 94-GHz FMCW Radar Sensors.
  IEEE Microwave and Guided Wave Letters, Vol. 9, No. 2, February 1999.

• M. Schnieber, A. Göller, A. Handro, J. Wagner, A. Bangert:
  Sechstor-Reflektometer für industrielle Mikrowellenmeßtechnik.
  43. Internationales Wissenschaftliches Kolloquium, Technische Universität Ilmenau, Ilmenau, 21.-24. September 1998.

• S. Kudszus, W.H. Haydl, A. Bangert, R. Osorio, M. Neumann, L. Verweyen, A. Hülsmann, M. Schlechtweg:
  HEMT Oscillators For Millimeter Wave Systems in Coplanar Waveguide Technology.
  28th European Microw. Conf. Dig., Amsterdam, Netherlands, Sep 1998.

• S. Kudszus, W.H. Haydl, M. Neumann, A. Bangert, A. Hülsmann:
  Subharmonically Injection Locked 94 GHz MMIC HEMT Oscillators Using Coplanar Technology.
  IEEE MTT-S International Microwave Symposium Digest 1998, Baltimore, Md., U.S.A., pp. 1585-1588.

• W.H. Haydl, A. Tessmann, S. Kudszus, L. Verweyen, M. Neumann, A. Hülsmann, F. Steinhagen, A. Bangert, J. Ruediger, M. Schlechtweg:
  W-Band Coplanar MMICs Using Cascode PM-HEMT Technology.
  22nd Workshop on Compound Semiconductor Devices and Integrated Circuits (WOCSDICE), FBH, Berlin, 1998.

• J.-E. Müller, T. Grave, H. Siweris, M. Kärner, A.Schäfer, H. Tischer, H. Riechert, L. Schleicher, L. Verweyen, A. Bangert, W. Kellner, T. Meier:
  A GaAs HEMT MMIC Chip Set for Automotive Radar Systems Fabricated by Optical Stepper Lithography.
  IEEE Journal of Solid-State Circuits, Vol. 32, No. 10, October 1997.

• M. Berroth, V. Hurm, M. Lang, Z. Lao, A. Thiede, Z.-G. Wang, A. Bangert, W. Bronner, A. Hülsmann, G. Kaufel, K. Köhler, B. Raynor, T. Jakobus:
  HEMT Circuits for Signal/Data Processing.
  Solid-State Electronics, Vol. 41, No. 10, October 1997, pp. 1407-1412.

• A. Bangert, J. Rosenzweig, W. Bronner, K. Köhler:
  Optical Control of HFETs.
  International IEEE Workshop on Experimentally Based FET Device Modelling & Related Nonlinear Circuit Design , Kassel, 17-18. Juli 1997.

• L. Verweyen, A. Bangert, H. Massler, T. Fink, M. Neumann, R. Osorio, T. Krems, T. Jakobus, W.H. Haydl, M. Schlechtweg:
  Compact Integrated Coplanar T/R-Modules for Automotive Applications.
  1997 IEEE MTT-S Int. Microwave Symp., Denver, Co., U.S.A., June 1997.
   
• S. Dahmani, H. Bourdoucen:
  Frequency Dependent Characteristics of MIC AND MMIC Structures with Absorbing Boundaries.
  Conference on Modeling and Simulation of Electrical Systems "CMSES", Saida, Algeria. May 1997.
   
• S. Dahmani, H. Bourdoucen:
  The Analysis of Open MIC AND MMIC Structures using The Method of Lines.
  Conference on Electrical Engineering and Electronics, Boumerdes, Algeria. Dec 1996.

• J.-E. Müller, A. Bangert, T. Grave, M. Kärner, H. Riechert, A. Schäfer, H. Siweris, L. Schleicher, H. Tischer, L. Verweyen, W. Kellner, T. Meier:
  A GaAs HEMT MMIC Chip Set for Automotive Radar Systems Fabricated by Optical Stepper Lithograph.
  IEEE GaAs IC Symposium Digest, U.S.A., Oct 1996.

• M. Schlechtweg, W.H. Haydl, A. Bangert, J. Braunstein, P.J. Tasker, L. Verweyen, H. Massler, W. Bronner, A. Hülsmann, K. Köhler:
  Coplanar Millimeter-Wave IC's for W-Band Applications Using 0.15 µm Pseudomorphic MOSFETs.
  IEEE Journal of Solid-State Circuits, Vol. 31, No. 10, October 1996.

• A. Bangert, M. Schlechtweg, M. Lang, W.H. Haydl, W. Bronner, T. Fink, K. Köhler, B. Raynor:
  W-Band MMIC VCO with a Large Tuning Range Using a Pseudomorphic HFET.
  1996 IEEE MTT-S Int. Microwave Symp., San Francisco, Ca., U.S.A., June 1996.

• M. Schlechtweg, W.H. Haydl, J. Braunstein, P.J. Tasker, A. Bangert, W. Reinert, L. Verweyen, H. Massler, J. Seibel, K.H. Züfle, W. Bronner, T. Fink, A. Hülsmann, P. Hofmann, G. Kaufel, K. Köhler, B. Raynor, Jo. Schneider
  110 GHz Amplifiers Based on Compact Coplanar W-Band Receiver Technology.
  IEEE GaAs IC Symposium Digest, San Diego, Ca., U.S.A., Oct 1995.

• A. Bangert:
  Optisch steuerbare monolithisch integrierte Hochfrequenzoszillatoren auf der Basis von GaAs-Heterostruktur- Feldeffekttransistoren.
  VDI-Fortschrittberichte, Reihe 9: Elektronik, Nr. 191, ISBN 3-18-319109-1, VDI-Verlag GmbH, Düsseldorf, 1994.

• A. Bangert, J. Rosenzweig, R. Bosch, W. Bronner, K. Köhler, B. Raynor:
  Voltage Dependence of the Optical Response of a Pseudomorphic HFET-Photodetector.
  24th European Microw. Conf. Dig., Cannes, France, Sep 1994.

• A. Bangert, J. Rosenzweig, M. Ludwig, W. Bronner, P. Hofmann, K. Köhler:
  Optical Response of a Pseudomorphic HFET Photodetector up to 10 GHz.
  1994 IEEE MTT-S Int. Microwave. Symp. Dig., San Diego, Ca., U.S.A., May 1994.

• A. Bangert, M. Schlechtweg, W. Reinert, W.H. Haydl, A. Hülsmann, K. Köhler:
  Monolithic Integrated 75 GHz Oscillator with High Output Power Using a Pseudomorphic HFET.
  1994 IEEE MTT-S Int. Microwave Symp. Dig., San Diego, Ca., U.S.A., May 1994.

• M. Schlechtweg, W. Reinert, A. Bangert, J. Braunstein, P.J. Tasker, R. Bosch, W.H. Haydl, W. Bronner, A. Hülsmann, K. Köhler, J. Seibel, R. Yu, M. Rodwell:
  High Performance MMICs in Coplanar Waveguide Technology for Commercial V-Band and W-Band Applications.
  1994 IEEE Microwave & Millimeter-Wave Monolithic Circuits Symp. Dig., San Diego, Ca., U.S.A., May 1994.

• A. Bangert:
  Monolithisch integrierte Mikrowellenschaltkreise.
  Internationaler Fachkongreß SMT/ASIC/Hybrid ´94, Nürnberg, 17.-19. Mai 1994.

• A. Bangert, J. Rosenzweig, A. Hülsmann, G. Kaufel, K. Köhler, Jo. Schneider:
  Optical Control of Pseudomorphic HEMT Based MMIC Oscillators.
  Microw. And Opt. Techn. Lett., Special Iss. on Microwave Photonics, Vol. 6, Jan 1993, pp. 36-38.

• A. Bangert, W. Benz, M. Berroth, A. Hülsmann, V. Hurm, G. Kaufel, K. Köhler, J. Rosenzweig, Jo. Schneider:
  Indirect Optically Controlled Pseudomorphic HEMT Based MMIC Oscillator
  22nd European Microw. Conf., Espoo, Finland, Aug 1992, pp. 702-706.

• M.A. Romero, A. Bangert, P.R. Herczfeld:
  Controle Optico de um Oscilador de Microondas Empregando Transistores HEMT.
  Proc. Of the 5th Brazilian Microw. Conf., Brasilia, Brazil, July 1992.

• A. Bangert, Th. Lauterbach:
  Initial Observations of Injection Locking of Oscillators Using Heterojunction Bipolar Transistors.
  Electron. Lett., Vol. 28, Mar 1992, 7, pp. 621-623.

• M.A. Romero, A. Bangert, X. Zhang, P.R. Herczfeld:
  Wavelength Dependence of the Optical Control of a HEMT Oscillator.
  Microw. and Opt. Techn. Lett., Vol. 5, Jan 1992, pp. 38-41.

• A. Bangert, M. Ludwig:
  Optical Injection Locked 8 GHz MMIC Oscillator.
  1991 IEEE MTT-S Int. Microwave Symp. Dig., Boston, Ma., U.S.A., June 1991, pp. 499-502.