Proceedings of the 39th European Microwave Conference Low-loss On-chip Transformers for CMOS RFICs Hsiao-Chin Chen#1, Tao Wang*2 and Shey-Shi Lu*3 # Department of Electrical Engineering, National Taiwan University of Science and Technology No. 43, Sec. 4, Keelung Rd., Taipei, 106, Taiwan 1 hcchen-mail.ntust.edu.tw * Graduate Institute of Electrical Engineering, National Taiwan University No. 1,

Validation of a fixed tuned planar tripler design optimized for sub-mm wave generation with HBCS devices Marcel Ruf', Jan Schür', Bogdan Nicolae2 , Lorenz-Peter Schmidt' and Hans L. Hartnagel2 Abstract -- A simulative investigation of a microstrip-based environment for a planar Heterostructure Barrier Charge Swing (HBCS) multiplier optimized for tripler operation from 100 GHz to 300 GHz together w

UWB channel: from statistical aspects to calibration-based deterministic modeling - extended version Jaouhar Jemai', Ingo Schmidt' and Thomas Kurner' Abstract -- This paper investigates both the statistical modeling aspects from an extensive indoor UWB measurement campaign including Line Of Sight (LOS) and Non Line of Sight (NLOS) configurations and a calibration method for a UWB deterministic cha

Substrate-integrated waveguide antenna array at Ka-band for polarization tracking Karsten Kuhlmann, Kamil Rezer and Arne E Jacob Abstract -- This contribution deals with the design, implementation, and test of a circularly polarized 3x3 antenna array at 30 GHz. The array elements are realized as open-ended substrate-integrated waveguides (SIW). To achieve the circular polarization, a septum polari

STIREEM - A novel technique for high resolution microwave imaging Hans H. Brand, Andreas Dexl, Johannes Hagen, Stephan Kellnberger, Siegfried Martius, Lorentz Peter Schmidt, Jan Schür and Jochen Weinzierl Abstract -- Radar and radiometry are well known techniques for microwave imaging applications but both inhabit resolution limitations defined by the operating frequency and antenna aperture dimen

Qualification of a compact Ka-band switch matrix for experimental on-orbit-verification S. Humbla, K.-H. Druee, R. Stephan, D. Stoepel, J.F. Trabert, G. Vogt and M.A. Hein Abstract -- We have developed a robust and compact reconfigurable switch matrix for satelliteapplications at Ka-band frequencies. The module including RF, bias, and control circuitry has been designed and fabricated by the low-t

Millimeter wave coherent radar with high spatial resolution for the determination of water content in aerosols Alexander Teplyuk', Reinhard Knoechel' and Grigory Khlopov2 Abstract -- The near range measurement of water content in aerosols by coherent radar in the millimetre wave band is discussed. For a bistatic radar an effective illuminated area of volume scatterers is determined taking into acc

EDITORIAL Message of the Editor-in-Chief of the International Journal of Microwaves and Wireless Technologies The International Journal of Microwaves and Wireless Technologies will take off during the year 2009 and aims to publish six issues a year. This journal has been wished by the EuMA to reinforce the presence of European Microwaves in the landscape of the scientific and technical literature

Improved large-signal measurement technique for reliable IMD characterization in GaN HEMTs E. R. Srinidhi, R. Ma and G. Kompa Abstract -- This paper reports a fully calibrated frequencydomain measurement setup using 2-channel VSA as receiver for characterizing nonlinear RF devices. The properties of measurement setup's baseband termination, that is critical for accurate distortion characterization

High-frequency time-domain measurement techniques for switch-mode amplifiers Andreas Wentzel, Chafik Meliani, Jens Flucke and Wolfgang Heinrich Abstract -- This paper introduces two measurement techniques for time-domain characterization of switch-mode amplifiers, particularly for class-S and class-D with differential output. GaN HEMT MMICs are presented. They achieve PAEs of 84% and 87% at 5 and