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Highly selective planar filter using negative resistances for loss compensation
Highly selective planar filter using negative resistances for loss compensation Sébastien Dardillac, Jérôme Tissier, Laurent Billonnet, Bernard Jarry, Hubert Jallageas, Bernard Casteignau, Christine Zanchi* IRCOM UMR CNRS n°6615 - University of Limoges 123, Avenue A. Thomas - 87060 Limoges Cedex, France (*) CNES Toulouse Space Center 18, Av. E. Belin 31401 Toulouse Cedex 4, France E-mail: gary@ir
Low Cost LTCC Filters for a 30GHz Satellite System
Low Cost LTCC Filters for a 30GHz Satellite System M. João Rosário1, Fabrice Le-Strat2, Pierre-Frank Alléaume3, J. Caldinhas Vaz1, Joerg Schroth4, Thomas Müller4, J. Costa Freire1 2 Instituto de Telecomunicações - IST, Av. Rovisco Pais, 1049-001 Lisboa, Portugal THALES Microelectronics, ZI de Bellevue, BP5 35521 Chateaubourg Cedex, France 3 THALES Microwave, 29 av. Carnot, 91349 Massy Cedex, Fran
NARROW BAND MICRO-MACHINED BAND PASS FILTER AND A SURFACE-MOUNTABLE TOPOLOGY
NARROW BAND MICRO-MACHINED BAND PASS FILTER AND A SURFACE-MOUNTABLE TOPOLOGY. M. Chatras* , P. Blondy*, D. Cros*, O. Vendier**, C. Drevon**, J.L Cazaux** *IRCOM 123 Avenue Albert Thomas 87060 Limoges Cedex France - email : chatras@ircom.unilim.fr ** ALCATEL SPACE INDUSTRIES 26 Avenue J.F Champollion 31037 Toulouse ABSTRACT -- A 27.88 three-pole 1.8% bandwidth silicon micro-machined filter w
Design of a Stopband Filter Based on a Magnetic Photonic Bandgap Material
Design of a Stopband Filter Based on a Magnetic Photonic Bandgap Material A. Saib, I. Huynen, and D. Vanhoenacker-Janvier Universit´ catholique de Louvain, Microwave Lab., e 3 place du Levant, B-1348 Louvain-la-Neuve Phone: +32 (0)10 472310 Fax: +32 (0)10 478705 e-mail: saib@emic.ucl.ac.be Abstract-- In this paper, we present a stopband filter synthesis using a new class of photonic bandgap (PBG)
A novel compact quasi planar silicon filter at 45 GHz based on metallic periodic structure
A novel compact quasi planar silicon filter at 45 GHz based on metallic periodic structure P. Ferrand1, M. Chatras1, D. Baillargeat1, P. Blondy1, S.Verdeyme1 J. Puech2, L. Lapierre2 1 2 IRCOM-UMR 6615-CNRS Faculté des sciences de Limoges, 87060 Limoges Cedex, France CNES, 18 avenue Edouard Belin 31401 Toulouse cedex4, France Abstract -- A small size planar filter at 45 GHz with a 8% bandwidth at
Low cost 5-bit Phase Shifter for DBS Phased Array Antennas
Low cost 5-bit Phase Shifter for DBS Phased Array Antennas Stanimir D. Kamenopolsky Sky Gate Ltd., RF & MW Design Department, 2a Mogilata str, 1700 Sofia, Bulgaria, +35929621285 Abstract -- A low cost patent pending 5-bit digital phase shifter has been developed for application in DBS receiving phased array antennas. New simplified loaded line architecture of less significant bit is proposed. The
A Versatile Calibration Method for Small Active Antenna Arrays
A Versatile Calibration Method for Small Active Antenna Arrays T. Brauner, R. Vogt, and W. B¨ chtold a Laboratory for Electromagnetic Fields and Microwave Electronics Swiss Federal Institute of Technology (ETH) Z¨ rich, 8092 Z¨ rich, Switzerland u u phone: +41-1/632 66 72, fax: +41-1/632 11 98, email: brauner@ifh.ee.ethz.ch chain with frequency conversion to baseband is included. ak and bk are the
Reactance Domain MUSIC Algorithm for ESPAR Antennas
Reactance Domain MUSIC Algorithm for ESPAR Antennas Cyril Plapous1, Jun Cheng2, Eddy Taillefer, Akifumi Hirata, Takashi Ohira ATR Adaptive Communications Research Laboratories, Kyoto, 619-0288 Japan Phone: +81-774951501, Fax: +81-774951178, E-mail: ohira@atr.co.jp Abstract-- Conventional adaptive array antenna processing must observe signals on all of the array antenna elements. However, because t
A Method for Design of Digital Beamformer with Prescribed Main Beam Width and Sidelobe Level
A Method for Design of Digital Beamformer with Prescribed Main Beam Width and Sidelobe Level Tuan Do-Hong, Peter Russer Munich University of Technology, Institute for High-Frequency Engineering Arcisstrasse 21, 80333 Munich, Germany, tel. +49-89-289-23373, e-mail: do-hong@ei.tum.de Abstract-- This paper presents a new method for design of digital beamfomer with prescribed main beam width and sidel
Compact Multibeam Dual-Frequency (24 and 77 GHz) Imaging Antenna for Automotive Radars
1 Compact Multibeam Dual-Frequency (24 and 77 GHz) Imaging Antenna for Automotive Radars 1 Bernhard Schoenlinner 2 , James P. Ebling, Leo C. Kempel 1 , and Gabriel M. Rebeiz 2 Electr. and Computer Engineering, Michigan State University, East Lansing, MI 48824-1326/USA 2 Radiation Laboratory, Electrical Engineering and Computer Science, Univ. of Michigan, Ann Arbor, MI 48109-2122/USA is the lens