Conference or workshop presentations

1. C. Fager, H. Nemati, U. Gustavsson, B. Almgren, T. Lejon, and H. Zirath, “Voltage/Current mode class D amplifiers and their applications”, Workshop Transmitter Design for High Power Efficiency: The path from device to advanced system architectures, IEEE Radio Wireless Symposium, Orlando, Jan. 2008. (Invited) (SMPA)

2. H. Cao, A. Soltani Tehrani, C. Fager, and T. Eriksson, "Identification of Distortion in a RF Measurement System," Proc. GigaHertz symposium 2008, Göteborg, 2008. (SMPA)

3. A. Soltani Tehrani, H. Cao, T. Eriksson, and C. Fager, "A Comparative analysis of the complexity/accuracy tradeoff for power amplifier behavior models," Proc. GigaHertz Symposium 2008, Göteborg, 2008. (SMPA)

4. K. Andersson, M. Thorsell, N. Billström, J. Nilsson, J. Holmkvist, A.-M- Andersson, M. Südow, M. Fagerlind, P.-Å. Nilsson, A. Malmros, H. Hjelmgren, N. Rorsman, "Paving the road for integrated gallium nitride transceivers", Proc. GigaHertz symposium 2008, Göteborg, 2008. (WIDEBAND)

5. M. Thorsell, and K. Andersson, “Active Harmonic Load-Pull using LSNA”, Proc. RFMTC 2009, Gävle, Sweden, 2009. (EXPO)

6. H. Cao, A. S. Tehrani, H. M. Nemati, T. Eriksson, and C. Fager, "Time Mismatch Effects in a Dynamic Load Modulation Transmitter Architecture," Proc. RFMTC 2009, Gävle, Sweden, 2009. (DIGIPA)

7. C. Fager, H. M. Nemati, P. Saad, M. Thorsell, and K. Andersson, "Characterization and Modeling Techniques for High Efficiency Switched Mode PA design" European Microwave Week, Workshop on "Review of FET Modelling for Emerging High-Efficiency and Wideband Circuit Applications" Rome, Italy, 2009. (Invited) (EXPO)

8. H. Hjelmgren, P.-Å. Nilsson, N. Rorsman, and K. Andersson, “Physical Simulation of transient characteristics in microwave AlGaN/GaN HEMTs and SiC MESFETs,” Microwave Workshops & Exhibition (MWE 2009), Yokohama, Japan 2009. (invited) (EXPO)

9. M. Thorsell, K. Andersson, H. Hjelmgren, and N. Rorsman, "Characterization of Electro-Thermal Effects in GaN Based HEMTs", 5th Space Agency – MOD Round Table Workshop on GaN Component Technologies, Katwijk, September 2010. (EXPO)

10. D. Kuylenstierna, H. Zirath, R. Kozhuaharov, B. Hansson, and I. Angelov, “Low-phase noise InGaP HBT VCO design,”  GigaHertz symposium, 2010. (INTOSC)

11. R. Christoffersen, S. E. Gunnarsson, A. Brandt, and D. Kuylenstierna, ”Single and Dual Fundamental Wideband Surface Mount VCO’s covering 2-25 GHz,” GigaHertz symposium, 2010. (INTOSC)

12. J. Stake, "THz-Technology based on Schottky Diodes and HBVs," International SAOT Workshop on Advanced THz Applications and Systems, Erlangen, Germany, 2010.(Invited) (THZ+)

13. J. Stake, T. Bryllert, P. Sobis, A.-Y. Tang, H. Zhao, J. Vukusic, A. Ø. Olsen, and A. Emrich, "Development of Integrated Submillimeter Wave Diodes for Sources and Detectors," EuMW2010, Paris, 2010.(Invited) (THZ+)

14. S. Lai, I. Angelov, D. Kuylenstierna, and R. Kozhuharov, ”A large-signal GaAs HBT model optimized for design of low phase-noise VCOs,”  GigaHertz symposium, 2010. (INTOSC)

15. T. Eriksson, A. Soltani Tehrani, and C. Fager, "Model-Based Adaptation of RF Power Amplifiers," Proc. GigaHertz symposium 2010, Lund, 2010. (DIGIPA)

16. C. Fager, H. M. Nemati, H. Cao, A. S. Tehrani, T. Eriksson, R. Jos, and H. Zirath, "Highly Efficient Dynamic Load Modulation Transmitter," GigaHertz symposium, 2010. (DIGIPA)

17. L. H. Hsu, D. Kuylenstierna, R. Kozhuharov, M. Abassi, and H. Zirath, ” Flip-chip based source modules for millimeter-wave radar systems,” Proc. TAMSEC 2010, Linköping, Sweden, 2010. (INTOSC)

18. H. Hjelmgren, M. Thorsell, P.-Å. Nilsson, N. Rorsman, and K. Andersson, “Numerical simulation of microwave power transistors,” Int. Workshop on Advances in Modeling and Optimization of High Frequency Structures, Reykjavik, Iceland, 2010. (invited) (EXPO)

19. C. Fager, H. M. Nemati, P. Saad, and K. Andersson, "High Efficiency Power Amplifier Design using Switch Mode Optimized Transistor Models," in Workshop WMJ: “Compact Equivalent Circuits and Table Based FET Models- Is There One Winner for Circuit Designers and Foundries?” IEEE International Microwave Symposium IMS2011, Baltimore, 2011. (Invited) (EXPO)

20. H. Nemati, B. Almgren, C. Andersson, H. Cao, T. Eriksson, C. Fager, U. Gustavsson, R. Jos, M. Özen, A. Soltani Tehrani, and H. Zirath, "Varactor-Based Dynamic Load Modulation of RF PAs," Workshop, European Microwave Conference, Manchester, 2011. (Invited) (DIGIPA)

21. D. Kuylenstierna, H. Zirath, S. Lai, and R. Kozhuharov, ”Design of low phase noise MMIC oscillators and VCOs,” Workshop, European Microwave Conference, Manchester, 2011. (Invited) (GANOSC)

22. J. Stake, "TeraComp – heterodyne receivers for frequencies up to 1 THz and beyond," presented at the European microwave week, Amsterdam, 2012. (Invited) (SPACETHZ)

23. J. Stake, "Terahertz electronics for imaging and sensing," invited presentation at the Optics- and Photonics Days, KTH AlbaNova, Sweden, October 19 2012. (Invited) (SPACETHZ)

24. J. Stake, T. Bryllert, R. Dahlbäck, V. Drakinskiy, J. Hanning, A. Malko, P. Sobis, A.-Y. Tang, J. Vukusic, and Z. Huan, "Integrated terahertz electronics for imaging and sensing," invited paper presented at the 19th International Conference on Microwave, Radar and Wireless Communications (MIKON-2012), Warsaw, Poland, 2012. (Invited) (SPACETHZ)

25. M. Thorsell, and K. Andersson, “Fast Multi Harmonic Active Load-Pull,” GigaHertz Symposium, 2012. (ACC)

26. H. Rodilla, J. Schleeh, G. Moschetti, P.-Å. Nilsson, and J. Grahn, “Optimization of InP HEMTs and Sb HEMTs by Monte Carlo simulations,” GigaHertz Symposium, 2012. (SPACETHZ)

27. J. Schleeh, P. Å. Nilsson, J. P. Starski, N. Wadefalk, and J. Grahn, “InP HEMTs Optimized for Ultra Low Noise Amplifiers,” GigaHertz Symposium, 2012. (SPACETHZ)

28. N. Wadefalk, P-Å. Nilsson, J. Schleeh, J. Halonen, G. Alestig, B. Nilsson, H. Rodilla, J. Grahn, and J. P. Starski, “InP MMIC Low Noise Amplifiers for Cryogenic Applications,” Proc. Microwave Technology and Techniques Workshop, ESA-ESTEC, May, 2012. (SPACETHZ)

29. D. Gustafsson, C. M. Andersson, and C. Fager, "Evolving the Doherty amplifier towards and beyond octave bandwidths," Proc. High Efficiency Microwave Power Amplifiers and Smart Transmitters Workshop, European Microwave Week, 2013. (EMIT)

30. J. Grahn, Low-noise HEMTs for cryogenic LNAs at ultra-low power dissipation, International Conference on Noise and Fluctuations (ICNF-2013). Montpellier, June 2013. (Invited) (SPACETHZ).

31. J. Stake, "Integrated terahertz electronics for imaging and sensing applications," Progress in electromagnetics research symposium (PIERS), Stockholm, 2013. (Invited) (SPACETHZ)

32. J. Stake, H. Zhao, V. Drakinskiy, T. Bryllert, A. Malko, J. Hanning, A.-Y. Tang, P. Sobis, R. Dahlbäck, and J. Vukusic, "Integrated diode technology for THz applications," SPIE Optics + Photonics, Terahertz Emitters, Receivers, and Applications IV, San Diego, 2013. (Invited) (SPACETHZ)

33. C. Fager, D. Gustafsson, M. Özen, C. M. Andersson, and R. Jos, “Wideband and Efficient PAs based on Advanced Doherty and Outphasing Techniques”, Proc. Radio Wireless Week Workshop "PA Design: from Device Model to High-Performance Circuit", Jan. 2014. (EMIT)

34. R. Maaskant, C. Fager, X. Bland, K. Hausmair, and T. Eriksson, "Scalability Analysis and Modeling of Future Massive MIMO Antenna Array Systems," Proc, AntennEMB, Göteborg, Sweden, 2014. (EMIT)

35. C. Fager, D. Gustafsson, M. Özen, C. M. Andersson, M. Heijden, M. Acar, R. Jos, T. Emanuelsson, T. Wegeland, T. Eriksson, and D. Kuylenstierna, "Efficient and Wideband Power Amplifiers for Wireless Infrastructure Applications," GigaHertz Symposium, Göteborg, Sweden, 2014. (EMIT)

36. M. Özen, C. Fager, M. Acar, M. Heijden, and R. Jos, "Efficient and Wideband Transmitters Based on Continuous Class-E Modes Theory," IEEE IMS and RFIC workshop: Highly efficient power amplifiers and smart transmitters, June 2014. (Invited) (EMIT)

37. C. Fager, D. Gustafsson, M. Özen, C. M. Andersson, J. Chani Cahuana, and T. Eriksson, "Enhancement of Power Amplifier Efficiency and Bandwidth by New Doherty/Outphasing Concepts," IEEE IMS and RFIC workshop: Efficient PAs and Transmitters for High PAPR Signals, June 2014. (Invited) (EMIT)

38. J. Schleeh, A. Minnich, J. Mateos, N. Wadefalk, J. Grahn " Self-Heating of Cryogenic InP HEMTs," GigaHertz Symposium, Göteborg, Sweden, 2014. (SPACETHZ)

39. J. Grahn, J. Schleeh, A. Westlund1, G. Moschetti, Q. Yang, J. Halonen, B. Nilsson, G. Alestig, P.-Å. Nilsson, H. Rodilla, N. Wadefalk, J. P. Starski “Microwave Electronics for Low Noise Amplification” GigaHertz Symposium, Göteborg, Sweden, 2014. (SPACETHZ)

40. J. Schleeh, N. Wadefalk, P.Å. Nilsson, J. P. Starski, G. Alestig, J. Halonen, B. Nilsson, H. Zirath, J. Grahn “Cryogenic 6-20 GHz Low Noise Amplifiers” GigaHertz Symposium, Göteborg, Sweden, 2014. (SPACETHZ)

41. A.Y. Tang, P. Sobis, N. Wadefalk, P.-Å. Nilsson, T. Bryllert, V. Drakinskiy, A. Emrich, J. Stake, J. Grahn” Reliability Assessment of Mixers, Multipliers and Low Noise Amplifiers for Space Applications” , GigaHertz Symposium, Göteborg, Sweden, 2014. (SPACETHZ)

42. J. Stake, "Advances in high frequency graphene electronics and integrated terahertz electronics for imaging and sensing applications," GigaHertz Symposium, Göteborg, 2014. (SPACETHZ)

43. H. Hjelmgren, “Numerical simulation of microwave power GaN HEMTs and SiC MESFETs”, GigaHertz Symposium, 2014. (ACC)


44.    C. Fager, X. Bland, J. Chani Cahuana, F. Johansson, K. Hausmair, P. Landin, et al., "Understanding Distortion in Emerging Mobile Communication Transmitters," Workshop presentation, National Instruments Week, Aug. 2014. (invited) (EMIT)


45.    M. Özen and C. Fager, "Wideband and Energy Efficient Power Amplifiers for Wireless Communication," Lund Circuit Design Workshop, Sept. 2014. (invited) (EMIT)

46.    J. Stake, “Advances in high frequency graphene electronics and integrated terahertz electronics for imaging and sensing applications”, GigaHertz Symposium. s. 61, 2014 (SPACETHZ)

47.    C. Fager, "System Level Modelling of Wideband Transceiver Components using Advanced Nonlinear Measurement Techniques," European Microwave Week Workshop: Transceiver/IF structures and modelling for wideband and SDR systems, 2015. (invited) (SITRA)

48.    M. Özen and C. Fager, “Advanced GaN Based Power Amplifier Architectures with Improved Energy Efficiency and Bandwidth Performance”, European Microwave Week Workshop: Latest Developments in GaN PA Technologies and Techniques, 2015. (invited) (SITRA)

49.    C. Fager, “Power Amplifiers for Energy Efficient and Wideband Mobile Communication Applications – Research Directions at Chalmers University”. Seminar (Invited) at University of California at San Diego and Qualcomm, San Diego, Aug. 2014. (EMIT)

50.    C. Fager, “Power Amplifiers for Energy Efficient and Wideband Mobile Communication Applications – Research Directions at Chalmers University”. Seminar (Invited) at University of Texas at Austin, Jan 2016. (SITRA)

51.    J. Grahn, Low-noise amplifiers at Chalmers University of Technology: From basic research to spin-off company, Faculty seminar at Ferdinand Braun Institut, Berlin, November 2015.(Invited) (INTHEL).

52.  C. Fager, W. Hallberg, M. Özen, K. Andersson, and D. Gustafsson, "Design of Highly Efficient and Linear PAs by Generalization of the Doherty Theory," Workshop presentation at WF05 Advances in GaN Power Amplifiers: Linearity, Bandwidth and Efficiency, European Microwave Conference, London, 2016 (invited)  (SITRA)*.

53.   C. Fager, W. Hallberg, M. Özen, K. Andersson, and D. Gustafsson, "Design of Highly Efficient Power Amplifiers by Generalization of the Doherty Theory," Presented at Workshop: PA Technologies for Future Broadband Wireless Communications,. IEEE Radio Wireless Week, Austin, TX, USA, 2016 (invited) (SITRA)*.

54.   C. Fager, S. Gustafsson, K. Buisman, K. Hausmair, C. Sanchez-Perez, X. Bland, et al., "Analysis of Massive MIMO and Phased-Array Transmitter Impairments," Presented at AWR Design Forum | National Instruments Software User Group Meeting, London, 2016. (invited) (SITRA*)

55. C. Fager, M. Özen, K. Hausmair, S. Gustafsson, E. Baptista, K. Buisman, et al., Challenges in 5G Transmitter Design, IEEE ESSCIRC/ESSDERC Tutorial: The hidden challenges of 5G, Leuven, Belgium, 2017. (ELEMENT)*

56. C. Fager, M. Özen, K. Hausmair, S. Gustafsson, E. Baptista, K. Buisman, et al., Architectures and Circuits for 5G Base Station Transmitters, in IEEE International Microwave Symposium workshop 5G Communications Innovations: Connectivity for the Next Decade, 2017. (ELEMENT)*

57. M. Özen, J. Jayamon, C. Fager, and P. Asbeck, Linear and Efficient mm-Wave Transmitters for 5G Base Station Applications, European Microwave Week, Workshop on High Efficiency Power Amplifiers and Smart Transmitters, 2017. (ELEMENT)

58. C. Fager, K. Hausmair, S. Gustafsson, U. Gustavsson, P. Landin, C. Sanchez-Perez, et al., Distortion and Linearization in Massive MIMO Transmitter Systems, 

IEEE Radio Wireless Week workshop Digital Pre-Distortion and Post-Correction from DC to RF and mm-Wave towards Optical Spectrum, 2018. (ELEMENT)*

59. C. Fager, K. Buisman, K. Hausmair, V. Tokmakis and S. Gustafsson, Calibrated multiport measurement system for 5G array OTA measurements, NVNA forum at The 2017 International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMIC), Graz, Austria, 2017. (ELEMENT, SURF)

60. K. Buisman, Active load pull for array emulation, NVNA forum at ARFTG Microwave Measurement Symposium, 2017 (SURF)

61. T. Eriksson et al., On the Calibration of Multi-Antenna Arrays, workshop presentation at European Microwave Week, Barcelona, Spain, Sep. 2018. (SURF)

62. T. Eriksson, K. Buisman, C. Fager, Lessons learned in calibration of MATE – The Chalmers mm-wave testbed, ASILOMAR, California, USA, Oct. 2018 (SURF)

63. K. Buisman, T. Eriksson MATE, Chalmers’ millimeter-wave MIMO testbed towards 100 Gbit/s, Swedish Microwave Days, May 2018 (SURF)

64. Mohammad Hossein Moghaddam et al., Compensation of Hardware Impairments in MATE, the Chalmers mmWave MIMO Testbed, Swedish Microwave Days, Lund, May 2018 (SURF)

65. P. Sobis, E. Saenz, V. Drakinskiy et al., Membrane Integrated Asymmetric Dual E-plane Probe Ortho Mode Transducer at 424 GHz Poster presentation in the 29th IEEE International Symposium on Space THz Technology, ISSTT 2018. (ITHZS)*

66. P. Sobis, V. Drakinskiy, T. Pellikka et al., Discrete GaAs Schottky beamlead mixer diodes for space-borne receiver applications Poster presentation in the 29th IEEE International Symposium on Space THz Technology, ISSTT 2018. (ITHZS)*

67. P. Sobis, N. Wadefalk, J. Schleeh et al., Low Power Cryogenic Rad-hard LNAs for Space Poster presentation in the 29th IEEE International Symposium on Space THz Technology, ISSTT 2018. (ITHZS)*

68. T. Bryllert, J. Svedin, M. Karlsson, E. Gandini, N. Llombart, V. Drakinskiy et al., 220-GHz imaging radar with 1-Hz frame rate using an array of homodyne transceivers Proceedings of SPIE - The International Society for Optical Engineering, 2018, 0277786X (ISSN) 1996756X (eISSN) Vol. 10634 (ITHZS)*

69. J. Stake and H.-W. Huebers, WF-02 Modern trends in terahertz electronics and systems workshop organizers in the 48th European Microwave Conference , 2018. (ITHZS)

70. T. Bryllert, THz Radar the 48th European Microwave Conference, WF-02, 2018. (ITHZS)

71. J. Stake, Schottky and HBV technology for submillimetre wave instruments in Space 8th ESA workshop on millimetre-wave technology and applications Noordwijk, Netherlands, 2018. (ITHZS)

72. J. Stake, THz generation with diode frequency multipliers, 6th EOS Topical Meeting on Terahertz Science & Technology, 2018, Berlin, Germany. (ITHZS)

73. A. Hammar, O. M. Christensen, S. Pak et al., Stray light suppression of a compact off-axis telescope for a satellite-borne instrument for atmospheric research Proceedings of SPIE - The International Society for Optical Engineering, 0277786X (ISSN), 1996756X (eISSN), Vol. 10815 art. no 108150F, SPIE/COS PHOTONICS ASIA, Beijing, China, 2018. (ITHZS)*

74. Isabel Harrysson Rodrigues, Arsalan Pourkabirian, Giuseppe Moschetti, Joel Schleeh, Per-Åke Nilsson, David Niepce, Thilo Bauch, Florian Lombardi, Jan Grahn, Magnetic Influence on Cryogenic LNAs, Swedish Microwave Days, Lund (2018). (ITHZS)*

75. E. Cha, G. Moschetti, N. Wadefalk, P.-Å. Nilsson, A. Pourkabirian, S. Bevilacqua, J. Schleeh, P. Starski, J. Grahn, InP HEMT design for Cryogenic Low Noise Amplifiers, Swedish Microwave Days, Lund (2018). (ITHZS)*

76. S. R. Aghdam and T. Eriksson, On the Impact of Colored Transmitter Noise on Millimeter Wave MIMO Systems, Swedish Microwave Days, Lund, May 2018 (ELEMENT)

77. C. Fager et al., Challenges in 5G transmitter design, Workshop on Transmitter Modules for Smart Antennas and MIMO Systems, European Microwave Week, Madrid, Spain, Oct. 2018 (ELEMENT*)

78. C. Fager et al., Linear and Efficient Transmitters for Active Antenna Arrays, Workshop on Recent advances in efficiency and linearity enhancement techniques for RF power amplification, IEEE International Microwave Symposium, Philadelphia, USA, June 2018, (ELEMENT*)

79. C. Fager et al., Systematic Design of High Efficiency Doherty and Outphasing PAs from Load-Pull Data, Workshop on Advanced Applications of Nonlinear Vector Network Measurements for broadband RF Power Amplifiers Design and Linearization, IEEE International Microwave Symposium, Philadelphia, USA, June 2018 (ELEMENT*)

80. Peter Sobis, Vladimir Drakinskiy, Arvid Hammar, Joel Schleeh, Niklas Wadefalk, Anders Emrich, Elena Saenz, and Jan Stake, Multichip dual polarisation THz MMIC receivers for future weather and climate research Small/Cube-sat missions 8th ESA workshop on millimetre-wave technology and applications Noordwijk, Netherlands, 2018. (ITHZS*)

81. M. Thorsell et al., Electro-Thermal Memory of GaN HEMTs, Swedish Microwave Days, Lund, May 2018 (THERMAL*)

82. I. Harrysson Rodrigues, D. Niepce, G. Moschetti, A. Pourkabirian, J. Schleeh, T. Bauch, J. Grahn, On the Angular Dependence of Cryogenic InP HEMTs in a Magnetic Field, WOCSDICE (2019), Cabourg, France. (ITHZS)*

83. C. Fager, Power Amplifier Linearity and Efficiency Challenges for sub-6GHz 5G Systems, IEEE ISSCC Forum Talk: Power Amplifier Linearity and Efficiency Challenges for sub-6GHz 5G Systems, San Fransisco, 2019. (ELEMENT)

84. C. Fager, Linearity and efficiency in 5G mm-wave transmitters, IEEE IMS Workshop: The Analog vs. Digital Battle — A Fight of Paradigms to Optimize Systems & PA Solutions for Wireless Infrastructure in 5G and Beyond, Boston, 2019. (ELEMENT)

85. K. Buisman & C. Fager, Efficient Transmitter Design using Advanced Doherty Techniques, European Microwave Week Workshop: RF Techniques for 5G Applications, Paris, 2019. (ELEMENT)

86. M. Özen, W. Hallberg, and C. Fager, Combiner synthesis for active load-modulation based power amplifiers, Chapter in Book: Radio Frequency and Microwave Power Amplifiers, IET, 2019. (ELEMENT)*

87. M. Thorsell et al., Thermal coupling in integrated GaN circuits, Workshop on Integration and multi-physics challenges in 5G mm-wave system design, European Microwave Week, Paris, France, Oct. 2019 (THERMAL*)

88. T. Eriksson et al., On the Calibration of Multi-Antenna Arrays, workshop at Radio & Wireless Week, Orlando, Florida, USA, Jan. 2019 (SURF)

89. T. Eriksson, W. Cao, C. Fager, Nonlinear Effects in Wireless Transceivers, accepted as an article in Wiley 5G Reference, 2019. (SURF and ELEMENT)

90. H. Nachouane, K. Buisman, T. Eriksson, MATE, the Chalmers mm-wave MIMO testbed - Overview and Experiments, Oct 2019. https://chalmersuniversity.box.com/s/czcczlzi9d4dd9nq5y1tk7o4ou6yxuvy  (SURF)

91. Hamid Yadegar Amin, Characterization and measurement of a mm-wave VCO and Receiver, July 2019. https://chalmersuniversity.box.com/s/b7avyddpxw1lj8j21utn21z01me04jcn (SURF) ​

Published: Tue 10 Dec 2019.