A Hierarchical Optimization Procedure for CAD of Antenna Waveguide Components B. Piovano, G. Bertin, M. Ludovico, G. Zarba, L. Accatino and M. Mongiardo* CSELT- Via Reiss Romoli, 274 - 10148 Turin, Italy,* DIEI, Università di Perugia, I - 06100 Perugia, Italy Abstract ­ Modern CAD tools for antenna waveguide components design require the introduction of optimization strategies in order to reduce

Active Patch Antenna for Digital TV Receiver B.Li, L.Xu, Y.W.Michael Chia , J.Sun and Z.N.Chen Centre for Wireless Communications, The National University of Singapore, 20 Science Park Road, #02-34/37, Teletech Park, Singapore Science Park II, Singapore 117674 Tel: 65 8709; Email: libin-cwc.nus.edu.sg Abstract ­ This paper presents a broadband, low noise and high-gain active patch antenna for dig

A Novel Inverted Trapezoidal Antenna Fed by a Ground Image Plane and Backed by a Reflector Ayman Duzdar, Günter Kompa Department of High Frequency Engineering, University of Kassel, Wilhelmshoeher Allee 73, D-34121 Kassel, Germany aduzdar-hfm.e-technik.uni-kassel.de kompa-hfm.e-technik.uni-kassel.de Abstract - This paper presents a new ultrawide band inverted trapezoidal antenna. The antenna is f

Electrical Model and Mutual Coupling Between Microstrip Antennas expressed through FDTD method A.HAFIANE, L. CIRIO, O.PICON Université de Marne la Vallée Pôle électronique hautes fréquences 5 bld Descartes, Champs sur Marne, 77454, Marne La Vallée cedex2 hafiane-univ-mlv.fr radiating slot is represented by a parallel equivalent admittance y (conductance g and susceptance b). These slots are joine

Wavelet-based Simulation of Arbitrarily Shaped Planar Circuits Guido Schneider', Gerald Oberschmidt , and Arne F. Jacob 1 2 1 Institut für Hochfrequenztechnik, Technische Universität Braunschweig P.O. Box 3329, 38023 Braunschweig, Germany, Fax: +49 531 391 2045 2 Siemens AG, ICN CM W Bsl DC TS, 76642 Bruchsal, Germany, Fax: +49 7251 73 3939 E-Mail: G.Schneider-tu-bs.de, Gerald.Oberschmidt-icn.s

Analysis of Conformal Microstrips Using Discrete Mode Matching Method A. Ioffe, A. Dreher German Aerospace Center (DLR), Institute of Communications and Navigation, D-82234 Wessling, Germany achim.dreher-dlr.de alexander.ioffe-dlr.de Abstract- A new variant of the discrete mode matching (DMM) method for the full-wave analysis of non-planar multilayer transmission lines is proposed. This variant c

An Efficient Algorithm for Finding High Order Modes in Resonators with Cylindrical Symmetry Michal Rewie´ ski , Michal Mrozowski n was with Faculty of Electronics, Telecommunications and Informatics, Technical University of Gda´ sk n currently with Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology, 02139 Cambridge, MA, USA Faculty of Electronics, Tele

Efficient Analytical Description of Metal Loss in Finite-Difference Waveguide Analysis Marco Kunze and Wolfgang Heinrich Ferdinand-Braun-Institut für Höchstfrequenztechnik (FBH), Albert-Einstein-Str. 11, D-12489 Berlin, Germany, Tel.: +49-(0)30-6392-2626, Fax: +49-(0)30-6392-2642, e-mail: marcokunze-ieee.org, WWW: http://www.fbh-berlin.de Abstract--This paper treats the finite-difference (FD) an

Analysis and Design of Circular Waveguide Polarizers with Elliptical Irises G. Bertin, B. Piovano, L. Accatino and M. Mongiardo* CSELT - Centro Studi e Laboratori Telecomunicazioni V. Reiss Romoli, 274 - 10148 Torino, Italy * Dipartimento di Elettronica, Università di Perugia, I-06100 Perugia, Italy Abstract - A new design of a polarizer realized in circular waveguide with the insertion of short

Impedance Representation of Waveguide Junctions Based on the Integral Equation Approach Michael Mattes, Alejandro Alvarez Melc´ n, Marco Guglielmi, and Juan R. Mosig o Abstract--Recently an impedance and admittance integral equation formulation for planar steps has been published. It leads directly to a reduced multi-mode matrix representation of cascaded uniform waveguides involving only a small