Very Low Noise Differential Radiometer at 30 GHz B.Aja1, E. Artal1, L. de la Fuente1, J.P. Pascual1, A. Mediavilla1, N. Roddis2, D. Kettle2, F. Winder2, L. Pradell3, P. De Paco3 1 Universidad de Cantabria, Departamento de Ingeniería de Comunicaciones,ETSI Telecomunicación, Av. Los Castros, 39005 Santander, Spain, Phone: 34-942201391(ext. 11) 2 Jodrell Bank Observatory, University of Manchester, M

Package and PCB Effects on Linearity of a Micromixer-Based W-CDMA Upconverter J.M. Wu1, F.Y. Han1, J.K. Jau1, T.S. Horng1, and C.C. Tu2 1 National Sun Yat-Sen University, Department of Electrical Engineering, 70, Lien-Hai Rd, Kaohsiung 804, Taiwan Tel: 886-7-5254119, e-mail: jason-ee.nsysu.edu.tw 2 Optimal Corporation, Kaohsiung Office, 3, Alley 539, Shiou-Chiun Rd., Kaohsiung 811, Taiwan Tel: 88

A Varactor Tunable Complex Impedance Transformer A.-L. Perrier*, P. Ferrari*, J.-M. Duchamp*, D. Vincent** * LAHC, Université de Savoie, 73376 Le Bourget-du-lac, France, ferrari-univ-savoie.fr, tel : 04-79-75-87-51 ** DIOM, Université de St Etienne, 42023 St Etienne, France using a coplanar waveguide topology (CPW) on a FR4 substrate. Next simulations of a second design are presented on a RT Dur

Dyadic Green's Function for Conformal Antennas in Multi Layered Cylindrical Structures Using Generalized Transmission Lines Munich Bruno Biscontini , Markus Burger , Franz Demmel , Peter Russer University of Technology, Arcisstrasse 21, 80333 Munich, Germany, Email:Biscontini-tum.de Rohde & Schwarz Company, Muehldorfstrasse 15, 81671 Munich, Germany Abstract-- A systematic algorithm for calcul

Two-Resonator Method for Measurement of Dielectric Constant Anisotropy in Multi-Layer Thin Films, Substrates and Antenna Radomes Plamen I. Dankov and Stefan A. Ivanov Sofia University, Faculty of Physics, 5, J. Bourchier Blvd, 1164-Sofia, Bulgaria, Tel. 359-2-8161806, FAX 359-2-9625276, E-mail: dankov-phys.uni-sofia.bg Abstract -- Two-resonator method, based on TE011-mode and TM010-mode resonance

Size Reduction and Tuning of Integrated Folded Patch Antennas Using Slots P. M. Mendes, M. Bartek(1), J. N. Burghartz(1), J. H. Correia Lab. of ECTM/DIMES, Delft University of Technology Dept. of Industrial Electronics, University of Minho Tel.: +351-253510382, Fax: +351-253-510189, e-mail: paulo.mendes-dei.uminho.pt Abstract -- We report on the use of slots for size reduction and tuning of folded

Improvement of Power Efficiency and Cost Reduction Solution in Microwave Linear Power Amplifier L.Baragiola, M.Frigerio, B.Gabbrielli, A.Panzeri ALCATEL ITALIA ­ VIA TRENTO 30, 20059 VIMERCATE (MI), ITALY ABSTRACT -- Power amplifier project covers an important role in microwave system design. In today's 2G systems, when very complex modulation schemes, such 32, 64 and 128 QAM, are used, the hands

Passive intermodulation near-field measurements on microstrip lines Sami Hienonen, Antti V. R¨ is¨ nen a a Radio Laboratory / SMARAD, Helsinki University of Technology, P.O.Box 3000, FIN-02015 HUT, Finland Tel: +358 9 4512936, Fax: +358 9 4512152 E-mail address: Sami.Hienonen-hut.fi Abstract-- A passive intermodulation (PIM) near-field measurement equipment has been earlier designed in order to lo

A hybrid method for the construction of the GSM of an arbitrary discontinuity, with respect to pre-selected modes Antonio MORINI , Nickolay ILIEV, Giuseppe VENANZONI Università Politecnica della Marche, Dipartimento di Elettromagnetismo e Bioingegneria, via Brecce Bianche, I-60100 Ancona, Italy, 39-0712204884 ABSTRACT -- The paper presents a technique, which allows the construction of the GSM of a

An Accurate Model of Five-Port Reflectometer S. Abou Chahine1, B. Huyart2 and G. Neveux2 Beirut Arab University, BP. 11 50 20, Lebanon Tel: 961 1 300 110, Fax: 961 1 818 402 2 Telecom Paris, 46 Rue Barrault, 75634 Paris, France Tel: 33 1 45 81 72 26, Fax: 33 1 45 89 00 20 increases. An accurate model of the exact equations of the system is proposed, where this factor is included. A tuner is insert