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Quantified effects of low frequency radiations on high power amplifiers pulse to pulse stability
Quantified effects of low frequency radiations on high power amplifiers pulse to pulse stability François Dhondt - Christophe Salmer Philippe Eudeline Thomson-CSF Airsys. Rouen, France francois.dhondt@airsys.thomson-csf.com II. DEFINITION OF PULSE TO PULSE STABILITY Abstract - This paper deals with the effects of low frequency radiations on microwave amplifiers, specially the high power solid s
Error location improvement of microwave interferometric positioning system
ERROR LOCATION IMPROVEMENT OF MICROWAVE INTERFEROMETRIC POSITIONING SYSTEM J.C. Cousin, A. Benlarbi-Delaï, A. Mamouni, Y. Leroy IEMN-UMR-CNRS 9929 Av. Poincaré B.P.69 59652 Villeneuve d'Ascq-France Tél : (33) 3 20 19 79 37, Fax : (33) 3 20 19 79 81 Email : aziz.benlarbi @iemn.univ-lille1.fr Abstract - Microwave interferometry is an attractive and easy handled method for short range positioning [1
Real-time Radiometric Imaging System for transportation applications
Real-time Radiometric Imaging System for transportation applications A. Chamseddine**, B. Bocquet*, N. Rolland*, G. Tittelein*, P. Noirel, A. Cappy*, P.A. Rolland*, M. Klingler**, M. Heddebaut** *Institut d'Electronique et de Microélectronique du Nord Département Hyperfréquences et Semiconducteurs U.M.R. CNRS 8520 Université des Sciences et Technologies de Lille 59655 Villeneuve d'Ascq Cedex FRANC
Two receivers for a PE 64-QAM LMDS
Two receivers for a CPE 64-QAM LMDS Jesús Grajal*, Victor Matarranz*, Pablo Dorta+, Félix Pérez* * U.P. Madrid, ETSIT, Ciudad Universitaria s/n, 28040 Madrid, Spain. Phone: 34-91-3367358, e-mail: jesus@gmr.ssr.upm.es + U.L.P.G.C., ETSIT, Campus Universitario de Tafira - 35017 Las Palmas de Gran Canaria, e-mail: pablo@masdache.teleco.ulpgc.es Abstract- Two prototypes for a Customer Premises Equipm
MICROWAVE TECH OLOGY FOR SPACE APPLICATIO : A FAST EVOLUTION TO BE COMPETITIVE
MICROWAVE TECHNOLOGY FOR SPACE APPLICATION: A FAST EVOLUTION TO BE COMPETITIVE Massimo Claudio Comparini Alenia Spazio RF and Microwave Equipment Engineering Via Saccomuro 24, 00131, Roma, Italy Abstract In the last years the satellite applications have seen a strong increase in the space hardware demand for commercial communication services like FSS, BSS making use of GEO birds and Mobile (MSS
Microwave Applications of Photonic Band Gap Structures
Microwave Applications of Photonic Band Gap Structures Burak Temelkuran(1), Mehmet Bayindir(1), Ekmel Özbay(1) , Rana Biswas(2), Mihail M. Sigalas(2), Gary Tuttle(2), Kai-Ming Ho(2) (1) Bilkent University, Ankara, Turkey, burak@fen.bilkent.edu.tr (2) Iowa State University, Iowa, USA biswasr@ameslab.gov and McMahon used a photonic crystal based single dipole antenna to obtain a directivity of 10
Applications of Electromagnetic Crystals in Microstrip Technology
Applications of Electromagnetic Crystals in Microstrip Technology Miguel A. G. Laso, Txema Lopetegi, Ramon Gonzalo, Maria J. Erro, David Benito, Maria J. Garde?, Peter de Maagt, and Mario Sorolla. Department of Electrical and Electronic Engineering Public University of Navarre, Campus Arrosadía s/n, 31006 Pamplona, Spain Phone: +34 948 169324; Fax: +34 948 169720; e-mail: mario@unavarra.es Elect
Microwave Photonic Crystals in France
Microwave Photonic Crystals in France Jean-Michel Lourtioz Institut d'Électronique Fondamentale, CNRS UMR 8622, Bât. 220, Univ. Paris Sud, 91405 Orsay, France Jean-michel.lourtioz@ief.u-psud.fr Abstract This paper presents a brief overview of recent works in France on microwave photonic bandgap (PBG) materials and their applications to microwave antennas and devices. Antenna radomes consisting
Microwave Beam Steering Reflector Based on a Tunable Impedance Surface
Microwave Beam Steering Reflector Based on a Tunable Impedance Surface D. Sievenpiper, J. Schaffner, R. Loo, G. Tangonan, S. Ontiveros, R. Harold HRL Laboratories, LLC 3011 Malibu Canyon Road, Malibu, CA, USA, 90265 ph: 310-317-5592, fax: 310-317-5679 dfsievenpiper@hrl.com Abstract - We describe a new kind of beam steering reflector consisting of a textured surface covered with an array of tiny re
Recent Advances in C-PBG Structures
Recent Advances in UC-PBG Structures Chin-Chang Chang, Fei-Ran Yang, Yongxi Qian, and Tatsuo Itoh Department of Electrical Engineering University of California, Los Angeles 405 Hilgard Avenue, Los Angeles, CA 90095, USA E-mail: chinchan@ee.ucla.edu Abstract - This paper summaries recent progress of uniplanar compact photonic band-gap (UC-PGB) structure at the author's group, including: (1) couple