Accurate and Easily Extractable Equivalent Circuit Models for Slotline and NRD Resonators D. Schreurs, O. Pertz*, W. Philibert, A. Beyer*, and B. Nauwelaers K.U.Leuven, div. ESAT-TELEMIC, Kard. Mercierlaan 94, B-3001 Heverlee, Belgium eMail: Dominique.Schreurs-esat.kuleuven.ac.be WWW: http://www.esat.kuleuven.ac.be/telemic * Gerhard Mercator University, Dep. Electrical Eng., Bismarckstr. 81, D-4

Bessel low pass filter in mixed planar waveguide techniques W. Menzel, F. Bogelsack Microwave Techniques, University of U1m D-89069 Ulm, Germany eMail: wolfgang.menzel-ieee.org.frank-mwt.e-technik.uni-ulm.de WWW: http://mwt.e-technik.uni-ulm.delmwt.php3 Abstract This paper describesthe designand re- sults of a Bessel low pass filter at 7.5 GHz for high speed (optical) communication applications.

CRITERION FOR A SWITCHING DEVICE AS A BASIS OF MICROWAVE SWITCHABLE AND TUNABLE COMPONENTS lB. Vendik\ O.G.Vendik\ andE.L.Kollberg t Chalmers University of Technology, Gothenburg, S-412 96, Sweden, Phone: +46 31 772 18 53, Fax: +46 31 16 45 13, e-mail: vendik-ep.chalmers.se IPermanent address: Electrotechnical University, St.-Petersburg, 197376, Russia, Phone: +7 812 234 99 83, Fax: +7 812 234480

Voltage Controlled Active Integrated Antennas M. M. Kaleja, E. Grasberger, and E. M. Biebl Lehrstuhl fUrHochftequenztechnik Technische Universi1it Mililchen Arcisstr. 21,80333 Mililchen, Germany Tel.: +49-89-289-23930; Fax: +49-89-289-25226; e-mail: kaleia-hft.ei.tum.de Abstract - The design and construction of voltage controlled active integrated antennas is discussed. Three different approaches

Efficient Approaches for the Analysis Aperture Arrays of Metal-Flanged L. Tarricone, C. Tomassoni and M. Mongiardo D.I.E.I., University of Perugia Via G. Duranti, 93, 06131, Perugia, Italy. tel. +39075 585 2663, fax +39 075 585 2654, email: mongiard-unipg.it Abstract The problem of an efficient and accurate analysis, also rigorously accounting for mutual coupling effects, of a small to medium s

Active Rectangular Patch Antenna with Push-Pull Oscillator Davor Bonefacic, Juraj Bartolic, Zvonimir Sipus University of Zagreb Faculty of Electrical Engineering and Computing Department of Radio communications and Microwave Engineering Unska 3, HR-10000 Zagreb, CROATIA Phone: +38516129772; Fax: + 38516129717 E-mail: davor.bonefacic-fer.hr Abstract - The paper presents a new design of an active

Low Profile Dielectric Resonator Antenna Arrays for Reflector Feeds Aldo Petosa, Apisak Ittipiboon, Michel Cuhaci Research in Advanced Antenna Technology Laboratory (RAATLab) Communications Research Centre Canada 3701 Carling Avenue, Box 11490, Station H Ottawa, Canada, K2H 8S2 Phone: 613-991-9352 Fax: 613-990-8369 email: aldo.petosa-crc.ca Abstract --- Arrays of dielectric resonator antennas (DR

Efficient Full-Wave Analysis of Waveguide Arrays on Cylindrical Surfaces G. Gerini *, M. Guglielmi t, T. Rozzi t, L. Zappelli t * TNO Physics and Electronics Laboratory, Den Haag, The Netherlands e-mail: gerini-fe1.tno.nl t European Space and Technology Centre (ESTEC), Noordwijk, The Netherlands e-mail: mgugliel-estec.esa.nl t Electronics and Automatics Department, University of Ancona, Ancona, It

Active Integrated Antennas Using Resonant Tunneling Diodes Kai Liu, Samir M. EI-Ghazaly, VijayNair*, NadaEI-Zein*, Herb Coronkin*, George Maracas* Electrical Engineering Department Arizona State University Tempe, AZ 85287 Email: sme-asu.edu .PCRL, Motorola, Inc., 2100 E. Elliot Road Tempe, AZ 85284 Abstract--Resonant Tunneling Diodes (RIDs) exhibit negative differential resistance (NDR), when bia

The INTELSAT -9 C-Band HemilZone Antennas Stefan Paus, Antenna Department, Dornier Satellitensysteme GmbH P.G.Box 80 11 69 81663 Mtinchen Phone: ++49-89-607-23713 Fax: ++49-89-607-23384 E-Mail: stefan.paus-dss.dornier.dasa.de Abstract The next generation ofINTELSAT-9 spacecraft, the INTELSAT-9 series, provides service in C and Ku-band. The feed arrays for the C-band multifeed reflector antennas ar