UNIPLANAR PASSIVE RECURSIVE MICROWAVE FILTER WITH MICROSTRIP RADIAL-LINE POWER DIVIDERS-COMBINERS N.ELOUAZZANI - BJARRY - P.GUILLON IRCOM -123, Avenue Albert Thomas - 87060 LIMOGES Cedex ABSTRACT The use of microstrip radial-line dividers-combiners is a new approach in the field of microvave recursive passive filter synthesis. The filter design consists firstly of an electromagnetic theoretical

Synthesis of Angular Bandpass Filters European D. Kinowski and M. Guglielmi Space Research and Technology Centre (ESTEC) P.O. Box 299, Noordwijk, The Netherlands Abstract Angular bandpass filters find application in advanced antenna feed systems for space applications as diplexers or as devices to reduce the effects of unwanted grating lobes. In this paper a new approach for the design of an

A Multilayer MMIC Filter Using Short-Line Meshes (8LMs) Ichihiko TOYODA.' Tsuneo TOKUMITSU Kenjiro NISHIKAWA NTT Radio Communication Systems Laboratories.. ABSTRACT. Miniature low~pass and band-pass filters that use novel4-port short-line meshes (SLM) stacked in a multilayer MMIC structure are proposed. The SLM is a periodic structure of very short TFMS lines. It acts as a point connection at low

Combined Circuit- /Field- Theory CAD Procedure for Manifold Mtlltiplexers with Circular Cavities Th. Sieverding and F. Arndt Microwave Department, University of Bremen P.O. Box 330 440 Kufsteiner Str.,NWl, D-28359, Bremen, Germany 1 Abstract A fast and accurate hybrid circuit-/field-theory design method for rectangular waveguide manifold multiplexers with circular cavity filters is described. T

SOIL EROSION EFFECTS IN MICROWAVE BACKSCATTERING FROM BARE FIELDS N.G. Zerdev Institute of Electronics Bulgarian Academy of Sciences G.~ Kulemin Institute of radiophysics and electronics, Ukrainian Academy of Sciences, 12 72 Tzarigradsko Shosse 1784 Sofia, Bulgaria Ak. Proskuri, , 310085 Kharkow, Ukraine ABSTRACT Capabilities of active remote sensing for detection of soil erosion processes we

THE RADAR BACKSCATTER FROM ROTATJNGOBJECTS WITH ANGULAR PERIODICITY' , J.D. Cashman, University College, University of N.S.W., Campbell, A.CT., Australia. Salisbury, S.A., Australia. G. Haack, Defence Science and Technology Organisation, Abstract: A rotating ensemble of conducting bodies with angular periodicity, about the axis Of rotation scatters an electromagnetic wave to producea spectrum o

Real-time Signal Processing in FM-CW Doppler-polarimetric Radar R.J. Niemeijer, J.S. van Sinttruyen, L.P. Ligthart Delft University of Technology, Department of Electrical Engineering, Microwave Laboratory, P.O. Box 5031, 2600 GA Delft, The Netherlands ABSTRACT An FM-CW Doppler-polarimetric radar is configured to measure the distance, radial velocity, and the complex scattering parameters of

DUAL-MODE ANTICOLLISION SHORT-RANGE RADAR A. Benlarbi, J.P. Covillers, Y. Leroy Institut d'Electronique et de Microelectronique du Nord . IEMN, UMRCNRS 9929 Departement Hyperfrequences et Semiconducteurs Domaine Universitaire et Scientifique de Villeneuve d'Ascq Avenue Poincare - B.P. 69 59652 Villeneuve d'Ascq Cedex FRANCE Abstract We propose a novel low-cost sensor able to determine the dist

A LOW COST W-BANDDOPPLER RADAR P. Quemeneur, N. Caillere, F.R. Jourdrouin, S. Toutain LEST - URA CNRS 1329 ENSTBr -FRANCE TELECOM - BP 832 - 29285 BREST CEDEX DBO - Avenue Le Gorgeu - 29280 BREST ABSTRACT In order to measure accurately the instantaneous real speed on the sea, a low cost Doppler radar has been developed in the W-band. The main parts of the device are a Gunn diode oscillator and

; CIRCULARLYPOLARISEDANTENNADESIGNSFOR A SEMI ACTIVE RADAR TARGET . D~Smith University of Northumbria Department of Electrical and Electronic Engineer~ng Ellison Place Newcastle upon TyneNE18ST 'United KingdOm B.S. Lee Ferranti International Satellite Communications and Microwave Components First Avenue,Poynton, Cheshire, SK121NE '.tJ nited Kingdom' Abstract , This paper describes work done o