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A Hierarchical Optimization Procedure for CAD of Antenna Waveguide Components
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
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
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
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
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
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
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
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
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
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