SIMULTANEOUS POWER AND NOISE OPTIMIZATION OF ACTIVE CIRCULATORS G. Carchon, B. Nauwelaers, S. Vandenberghe and D. Schreurs K.U.Leuven, div. ESAT~TELEMIC, Kard. Mercierlaan 94, B-3001 Heverlee, Belgium Tel. +32-(0)16-321875, Fax. +32-(0)16-321986, E-mail: geert.carchon-esat.kuleuven.ac.be ABSTRACT Active circulators offer the advantage of small size and weight, low cost and compatibility with MMIC

The Design of MMIC Filters Using Predistortion Technique Ndujiuba C.V. and Khanifar A Dept of Electronic and Electrical Eng; Vniversity College London Torrington Place London WCIE 7JE 1 Abstract A systematic and coincise method for designing active filters in Monolithic Microwave Integrated Circuit (MMIC) technology is presented. The technique is based on the predistortion of the filter transfe

MONOLITmc PHASE AND GAIN CONTROL CIRCUIT FOR BROADBAND FREQUENCY TUNING OF MULTIPOLE MICROWAVE ACTIVE FILTERS A. Cenac - L. Nenert - L. Billonnet - B. Jarry - P. Guillon I.R.C.O.M. - Faculte des Sciences - UMR CNRS 6615 123 Avenue Albert Thomas - 87060 LIMOGES Cedex - France nenert-ircom.unilim.fr ABSTRACT In this article, a lossless variable gain and analog transmission-type phase shifter which

NARROWBAND MMIC FILTERS USING ACTIVE GaAs INDUCTORS. APPLICATION TO HDTV. E. Vanabelle, P. Descamps, and J. Vindevoghel Institut d'Electronique et de Microelectronique du Nord Departement Hyperftequences et Semiconducteurs U.M.R C.N.RS 9929 Avenue Poincare - BP 69 59652 Villeneuve d'Ascq Cedex France Phone: (33) 3 20197931 Fax: (33) 3 20197896 E-mail: Eric.Vanabelle-iemn.univ-lille1.ft ABSTRACT I

KU BAND HIGH POWER AMPLIFIER FOR ACTIVE ANTENNA J. Ch.CAYROUB. , . COGO , J.L. CAZAUX, B. VILLEFORCEIX . . .. *ALCATEL SPACE,26 avoJ.F. CHAMPOLLlON,31037 TOULOUSE Cedex, FRANCE "FRANCE TELECOM - CNET, 38 - 40 avo du General LECLERC, 92131 ISSY-LESMOULINEAUX, FRANCE Phone: 33.(0)5.34.35.65.42, Fax: 33.(0)5.34.35.69.47 ABSTRACT One of the key elements of a Ku Band Transmit active antenna is

A LOW SPURIOUS DIRECT DIGITAL SYNTHESISER R J Sutcliffe, G Parkinson Matra Marconi Space (UK) Ltd, First Avenue, Poynton, Stockport, Cheshire SK12 1NE richard.sutc1iffe-nunsuk.co.uk graham.parkinson-nunsuk.co.uk ABSTRACT A low spurious fine frequency step direct digital synthesiser (DDS) has been developed which utilises a patented spurious reduction technique that reduces spurious signals to bel

RECURSIVE FILTERS EMPLOYING TRANSMISSION TYPE PHASE SHIFTERS AND NOVEL SELF-SWITCHED TIME SHIFTERS FOR FREQUENCY TUNING Magnus Danestiga, Aziz Ouachaa, Carlos Lie Kien Tsoenb, Theo Tiemanb, Staffan Rudnera a FOA Defence Research Establishment, P.O. Box 1165, S-581 11, Linkoping, Sweden b TNO Physics and ElectronicsLaboratory,P.O. Box 96864,2509 JG, The Hague, The Netherlands ABSTRACT In this pap

3D NEAR-FIELD ANALYSIS OF A 4x4 GRID OSCILLATOR ELECTRO-OPTIC FIELD IMAGING SYSTEM USING AN G. David1, K. yang1, W. Wang2, L. W. pearson2, I.F. Whitaker1, and L.P.B. Katehi1 Center for Ultrafast Optical Science and Radiation Laboratory Dept. of Electrical Engineering and Computer Science, University of Michigan, 1301 Beat Avenue, Ann Arbor, MI 48109-2122, U.S.A phone: +1-313-763-4875, fax: +1-31

INJECTION LOCKED GRID OSCILLATORS Wenzhang Wang and L. Wilson Pearson Department of Electrical and Computer Engineering Clemson University Clemson, SC 29634-0915 USA (864) 656-3946 (voice & fax) E-mail: wenzhaw-ces.clemson.edu, pearson-ces.clemson.edu ABSTRACT In this paper, we report results of the first successful injection phase locked grid oscillators. The grid oscillator, operate at 4.25 GHz

ENHANCED PREDICTION CAPABILITIES OF HARMONIC AND INTERMODULATION DISTORTION CHARACTERISTICS OF ,u-WAVE AND mm-W AVE PBEMTs VIA AN ADVANCED NON-LINEAR MODEL Vicentiu I. Cojocaru, Alan Bannon and Thomas J. Brazil Department of Electronic and Electrical Engineering University College Dublin, Dublin 4, Ireland. E-mail: vivi-hertz. ucd. te ABSTRACT The paper investigatesthe capabilitiesof the COBRA FE