Analysis of nonlinear memory effects on the linearity of a SiC MESFET S. Augaudy, R. Quéré, J.P. Teyssier IRCOM, CNRS, University of Limoges, IUT GEII 7 Rue J. Vallès 19100 Brive France Phone (33) 5.55.86.73.18, Fax (033) 5.55.86.14.26, e-mail: augaudy-brive.unilim.fr With experimental characterizations based on a pulsed I-V and pulsed S-parameters measurement set-up, we investigate the trapping a

Measurements of Passive Intermodulation in 2G and 3G Farhat Abbas National Physical Laboratory, Teddington, UK, farhat_abbas77-yahoo.co.uk Passive Intermodulation (PIM) occurs whenever multiple signals at two or more frequencies conduct simultaneously in passive devices, such as connectors, cables, filters and antennas, which contains some nonlinear response, the cause of which is often not known,

Microwave Tunable Device based on Thin Ferroelectric Film Saeed Abadei Department of Microelectronics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden, e-mail: abadei-ep.chalmers.se The voltage-dependent dielectric permittivity, , of ferroelectrics is widely used for developing electrically tunable microwave components. In this work, a set of planar Metal-Ferroelectric-Insulator-Sem

Minimization of Power Loss in the Frequency Tuning Circuits of Small Resonant Antennas Jani Ollikainen, Outi Kivekäs, Leonardo Azzinnari, and Pertti Vainikainen Helsinki University of Technology, Institute of Digital Communications, Radio Laboratory, P.O. Box 3000, FIN-02015 HUT, Finland, E-mail: jani.ollikainen-hut.fi, Abstract - Minimization of power loss in the tuning circuits of frequency-tuna

Network Modeling of a CPW-Fed Aperture-Coupled Patch Antenna Arnold J. Herb and Erwin M. Biebl Fachgebiet Höchstfrequenztechnik, Technische Universität München, 80290 München, Germany, herb-ei.tum.de, biebl-ei.tum.de We present a novel network model for coplanar fed aperture-coupled patch antennas. The network consists of two ideal transformers, slotlines, microstrip lines with open stubs and a co

EISL, the Pendant to EIRP: A Measure for the Receive Performance of Base Stations at the Air Interface Georg Fischer, Florian Pivit*, Werner Wiesbeck* Lucent Technologies, Wireless Advanced Technology Lab, Thurn-und-Taxis-Straße 10, 90411 Nürnberg, Germany Phone: (+49) 911 ­ 526 ­ 3893, email: georgfischer-lucent.com *Institut für Höchstfrequenztechnik und Elektronik, Universität Karlsruhe, Kaiser

Multi-grid, Multi-level Analysis of Printed Arrays and Circuits Gianluca Dassano, Ladislau Matekovits, Paola Pirinoli, Francesca Vipiana, Giuseppe Vecchi, Mario Orefice Dipartimento di Elettronica, Politecnico di Torino, I-10129 Torino, Italy Phone: +39-011-5644119 ,Fax: +39-011-5644099 E-mail: matekovits-polito.it A technique is presented for analyzing large and complex arrays with limited numeri

Active Push-Pull Circular Patch Antenna Davor Bonefaci, Juraj Bartoli, Zvonimir Musti University of Zagreb, Faculty of Electrical Engineering and Computing Department of Radiocommunications and Microwave Engineering Unska 3, HR-10000 Zagreb, CROATIA Phone: +385 1 6129 772; Fax: + 385 1 6129 717 E-mail: davor.bonefacic-fer.hr Abstract ­ The paper presents a new design of an active self-oscillating

1 An Optimised Network Topology to Minimise E-Fields Occuring in Coaxial Resonator Filters B.S.Senior, I.C.Hunter, V.Postoyalko, R.Parry Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering University of Leeds, LS2 9JT ben.senior-ieee.org Abstract-- A demand for high power filters is met by a theoretical procedure to produce prototype networks designed to minimi

1 Synthesis of lossy filters B.S.Senior, I.C.Hunter, J.D.Rhodes Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering University of Leeds, LS2 9JT Abstract-- A new procedure for synthesising filters with finite dissipative loss is presented. This method enables filters with finite Q resonators to be directly synthesised while maintaining a prescribed selectivity