NOVEL MICROSTRIP CIRCULAR PATCH ANTENNAS S.MELLAH, M.DRISSI and J.CITERNE INSAlLCST.CNRS, URA 834, 20 Avenue des Buttes de Coesmes . 35043 Rennes Cedex FRANCE ABSTRACT Two new microstrip circular patches excited by a microstrip transmission line through an inserted coplanar section are presented. The integral equation for the unknown currents on the antenna and its feeding line is solved by

Computer-aided design of modulated backscatter microwave modules Martin V. Schneider, Cuong Tran, and Ralph Trambarulo AT&T BeD Laboratories, 791 Holmdel-Keyport Road, Crawford Hill Laboratory, Holrndel, NJ 07733, USA. TEL: (908) 888-7122,FAX: (908) 888-7074,e-mail: mvs-hoh-1.attcom . Abstract Modulated backscatter technology is becoming increasingly important for the realization of passive wir

MODELLING NONLINEAR DISPERSIVE MEDIA IN 2D TLM Leonardo R.A.X. de Menezes and Wolfgang J. R. Hoefer * "" " ABSTRACT: This paper describes the modelling of nonlinear dispersive media in a two-dimensional TLM mesh. The nonlinear medium behavior is represented by connecting a one-port nonlinear network to each node in the mesh (shunt or series). Using this approach the propagation of electromagnet

Comparison of Coarseness Error Reduction Measures in the ." Two-Dimensional TLM Method and ~dalbert BeY,er :. . ';" 'Bfu-bara H4uschild, UlfMueller ,:,":) '.~. t " Duisburg University, Departmel\t of Electromagnetic ThCPry and Engin~ring, (FB9/ATE), Bismarckstrasse 81, 47048 Duisburg, GERMANY Abstract: In this paper the first time a treatment of field singularities using the new boundaries afte

MODELING OF REGULAR CONDUCTING AND SUPERCONDUCTING BOUNDARIES IN TLM Jahn Damaschke * and Wolfgang J. R. Hoefer * ABSTRACT Several models have been developed, implemented and tested in TLM that describe the time domain behavior of lossy conducting walls with their dispersive and nonlinear characteristics over a wide frequency range. These models thus accurately represent the properties of regular

Siotline Short and .Open Circuit Analysis by the Finite-Difference TimeDomain Method, . . i \; V F Fusco, Qiang Chen High Frequency Electronics Laboratory Department of ElectricaLand;Electronic E~g. The Queen' s Univer~ity ,'of Belf~, Ashby Buitding ; Stranmillis Road,Belfast"B:r9 5AH, ~.IreJand, United Kingdom. , . . (, Tel: +44 (0)232245~33, Fax: +44 (0)23'2667023 1/, ." ... I ABSTRACT ~ " '

FDTD-SIMULATION OF WAVEGUIDE JUNCTIONS USING A NEW BOUNDARY CONDITION FOR RECTANGULAR WAVEGUIDES M. Werthen, M. Rittweger, and I. Wolff lnstitut fUr Mobil- und Satellitenfunktechnik Moerser Str. 316, D-47475 Kamp-Lintfort ABSTRACT A new (under practical circumstances ideal) absorbing boundary condition (ABC) to terminate homogenous waveguides for use with the FDTD method is presented. The ABC uses

A SOFTWARE PACKAGE FOR ACCURATE .CQMPUTA'[IQN._OF F~f:QtiJE~yY DEPENDENT PROPAGATION AND CIRCUITAL PARAMETERS OF INHOMOGENEOUS ANISOTROPIC ARBITRARY SHAPEb MUL TICONDUCTOR TRANSMISSION LINES' M. Salazar-Palma(.), L. E. Garcia-Castillo(.), G. Guido Gentili(U) (.)Gtupo Microondas y Radar. Dpto. Sefiales,:Sistemas y Radiocornunicaciones. E.T.S.I. TelecomWlicaci6n. Universidad Politecnica. Ciudad Uni

EXPERIMENTAL COMPARISON OF THREE DIFFERENT MONOLITHIC 10 Gb/s InP-BASED RECElVER-OEIC CIRCUIT CONCEPTS FOR A D. Kaiser, F. Besca, H. Grof3kopf, F.Grotjahn, W. Kuebart, J.-H. Reemtsma, and I. Gyuro Alcatel SEL Research Centre Dep. Opto-Electronic Components ZFZ/WO Lorenzstr. 10, D-70435 Stuttgart, Germany Phone: +49711 821 5837 Fax: +49 711 821 6355 ABSTRACT " Different circuit concepts for

'~LIGHTW AVE MICROW AVECHARACTERIZA TION OF COOLED HG CD TE PHOTODETECTORS FOR SPACEBORNE WIND LIDARS" - J.e. MOLLIER M. CHAUBET and JP SAGE Y. AUBRY and A. ROIZES ENSAE BP 403231;055 TOULOUSE CEDEX CNES - 18, avo Ed. Belin 31055 TOULOUSE CEDEX CERT-ONERA - 2, avo Ed. Belin 31055 TOULOUSE CX , ! i ABSTRACT: , To demonstrate the faisability of a new heterodyning process for a wind Lidar, we