Power Amplifier Modeling Using Memory Polynomial with Non-uniform Delay Taps A. Ahmed, M. O. Abdalla, E. S. Mengistu, and G. Kompa University of Kassel, Fachgebiet Hochfrequenztechnik, Wilhelmshöher Allee 73, D-34121 Kassel, Germany, Tel: +49561-804-6509, Fax: -6529, E-mail: aahmed-uni-kassel.de Abstract -- In this paper, a new power amplifier (PA) model with memory is proposed. The new PA behavi

Modeling Microwave Contact Discontinuities Regina Kwiatkowski 1, Mihai Vladimirescu 2 1 2 COM DEV Ltd., Space Group, 155 Sheldon Drv. Cambridge, Ontario N1R 7H6, Canada, phone: (519)-622-2300 COM DEV Ltd., Space Group, 155 Sheldon Drv., Cambridge, Ontario N1R 7H6, Canada, phone: (519)-622-2300 Abstract -- The microwave contact discontinuities are some of the most frequent, though less studied, d

Size Reduction of a Liquid Crystal-based, Frequency-Adjustable Patch Antenna Noham Martin, Paul Laurent, Christian Person, Philippe Gelin and Fabrice Huret LEST ­ UBO/ENST-Br ­ UMR CNRS 6165, CS 93837, 29238 BREST Cedex 3, France Noham.Martin-univ-brest.fr Abstract: This study was aimed at miniaturizing an antenna functioning at 5 GHz. But, this miniaturization induces greater dimension errors in

A Synthesis Technique for Mono- and Mixed-Mode Symmetrical Filters Holger Heuermann, Univ. of Applied Sciences Aachen, Institute of High Frequency Technology Email: Heuermann-FH-Aachen.de Germany, 52066 Aachen; Eupener Str. 70, Phone: +49/241/6009-2108, Abstract-- The paper introduces a synthesis technique for mono- and mixed-mode symmetrical filters. Following the approach, all symmetrical filte

Coexistence Study of Automotive Short Range Radar operating in the W-Band Hans-Ludwig Blöcher1, Gerhard Rollmann2 2 DaimlerChryler AG, HPC U800, D-89081 Ulm, Germany DaimlerChrysler AG, HPC X912, D-71059 Sindelfingen, Germany realistic probability of interference [1]. Hereby, also the fractional activity of the SRR systems has to be taken into account. In the following paragraphs the issues menti

Measurement of Nonlinear Dispersive Parameters of Avalanche Photodiode Using Pulsed RF Signal and Quasi-DC Optical Stimulus A. Ghose, B. Bunz, J. Weide and G. Kompa Dept. of High Frequency Engineering, University of Kassel, Wilhelmshöher Allee 73, D-34121, Kassel, Germany, Tel: +49-561 804 6528, Fax: +49-561 804 6529, Email: ag-hfm.e-technik.uni-kassel.de Abstract -- In this work we report on a me

MM/MoM CAD of Broadband Taper/Branching OMTs Utilizing Stepped T-Junctions F. Arndt1, V. Catina1, and J. Brandt2 1 Microwave Department, University of Bremen, Otto-Hahn-Allee NW1, D-28359 Bremen, Germany, arndt-hf.uni-bremen.de 2 MiG, Microwave Innovation Group, Fahrenheitstr. 11, D-28359 Bremen, Germany Abstract -- A hybrid mode-matching (MM) / method-ofmoment (MoM) technique is applied for th

A V-Band Single-Stub RF MEMS Impedance Tuner Tauno Vähä-Heikkilä1,2, Jussi Varis2, Jussi Tuovinen2 and Gabriel M. Rebeiz1 University of Michigan, Ann Arbor, USA, Tel. +1 734 647 1793 MilliLab, VTT Information Technology, Espoo, Finland, Tel. +358 9 456 7219 1 2 Abstract -- A V-Band reconfigurable single-stub impedance tuner has been developed which is suitable to be integrated inside an RF probe

Optimal Inter-Element Spacing in Linear Array Antennas and its Application in Satellite Communications 1 W. Aerts1 , G. A. E. Vandenbosch2 K.U.Leuven, dep. ESAT-TELEMIC, Kasteelpark Arenberg 10, B-3001 Leuven, Belgium Tel: +32 16 321833, Fax: +32 16 321986, E-mail: wimaerts-esat.kuleuven.ac.be 2 Tel: +32 16 321110, E-mail: vdbosch-esat.kuleuven.ac.be For satellite antennas, depends on the orbit

Suppression of Harmonics in Wilkinson Power Divider by Using Asymmetric Spiral DGS Duk-Jae Woo, Taek-Kyung Lee School of Electronics, telecommunication and Computer Engineering, Hankuk Aviation University 200-1 Hwajon-dong, Deokyang-gu, Goyang, Gyonggi-do 412-791, Korea Phone:82-2-300-0138, E-mail:tklee-hau.ac.kr, Fax:82-2-3159-9257 Abstract -- This paper presents an effective method of 2nd and 3r