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A Novel Diode Linearizer for the CDMA Power Amplifier
A Novel Diode Linearizer for the CDMA Power Amplifier Jia Sun, Van Wah Michael Chi~ Bin Li Centre for Wireless Communications National University of Singapore Email: cwcsuni@leonis.nus.edu.se: Abstract: A novel diode linearizer has been developed for the CDMA power amplifier application. Compared with the traditional series diode linearizer, the dynamic range of the compensation of positive amplit
EFFICIENCY OF 76GHZ POST-WALL WAVEGUIDE-FED PARALLEL PLATE SLOT ARRAYS
EFFICIENCY OF 76GHZ POST-WALL WAVEGUIDE-FED PARALLEL PLATE SLOT ARRAYS Jiro Hirokawa and Makoto Ando Dept. of Electrical & Electronic Eng., Tokyo Institute of Technology E-mail: jiro@antenna.pe.titech.ac.jp Abstract-We design and fabricate various sizes of 76GHz post-wall waveguide-fed parallel plate slot arrays. The post-wall waveguide is an array of metalized via-holes with a narrow spacing i
A 24 GHZ MICROSTRIP ANTENNA ARRAY INCORPORATING A RIDGE WAVEGUIDE FEED NETWORK
A 24 GHZ MICROSTRIP ANTENNA ARRAY INCORPORATING A RIDGE WAVEGUIDE FEED NETWORK Wolfgang Menzel, Pedro J. Navarro Vera Microwave Techniques,UniversityofUIm, PO Box, D-89069 UIm, Gennany E-mail:menzel@mwt.e-technik.uni-uIm.de Abstract - A major restriction of high gain microstrip antenna arrays is found in their high losses, mainly due to the feeding network. In this contribution, design and result
TRENCHED SILICON MICROSTRIP ANTENNA ARRAYS WITH GROUND PLANE EFFECTS
TRENCHED SILICON MICROSTRIP ANTENNA ARRAYS WITH GROUND PLANE EFFECTS Q. Chen, V. F. Fusco, M. Zheng * and P. S. Hall * High Frequency Electronics Laboratory, Dept. ofElectrica1 and Electronic Engineering The Queen's University of Belfast, Ashby Building, S1ranmillis Rd, Belfast BT9 5AH, UK *Communication Engineering Group, School of Electronic and Electrical Engineering The University of Birmingha
Design and Construction of an Array of Vertically Oriented Bow-Tie Antennas for a New Generation of Radio Telescopes
Design and Construction of an Array of Vertically Oriented Bow-Tie Antennas for a New Generation of Radio Telescopes. M.J. Arts, A.B. Smolders Netherlands Foundation for Research in Astronomy P.O. Box 2, 7990 AA Dwingeloo, The Netherlands E-mail: arts@nfra.nl.smolders@nfra.nl Abstract - In this paper an array of vertically oriented bow-tie antennas is described. This array is part of the One Squar
A Broadband Quasi- Yagi Antenna Array
A Broadband Quasi- Y agi Antenna Array James Sor, W.R. Deal, Y. Qian and T.ltoh Electrical Engineering Department University of California, Los Angeles 405 Hilgard Avenue Los Angeles, CA 90095, USA Emai1: isor(a2ee.ucla.edu http://www .mwlab.ee. ucla.edu Abstract - A broadband quasi-Yagi X-Band antenna array with a fanbeam-pattern is presented. The bandwidth of the array (VSWR < 2.0) is found t
UNIFIED CIRCUIT MODEL OF FINITE-GROUND CPW INDUCTIVE SERIES-CONNECTED ELEMENTS FOR INNOVATIVE DESIGN OF UNIPLANAR M(H)MICS
UNIFIED CIRCUIT MODEL OF FINITE-GROUND CPW INDUCTIVE SERIES-CONNECTED ELEMENTS FOR INNOVATIVE DESIGN OF UNIPLANAR M(H)MICS# Lei ZOO and Ke WU POLY-GRAMES Research Center Department of Electrical and Computer Engineering Ecole Polytechnique de Montreal, Quebec, Canada e-mail address:zhul@grmes.polymtl.ca&wuke@grmes.polymtl.ca Abstract - Unified CAD-oriented circuit model is developed for accurate
Combined Mechanical and Electrical Analysis of a Microelectromechanical Switch for RF Applications
Combined Mechanical and Electrical Analysis of a Microelectromechanical Switch for RF Applications tF. De Flaviis, *R. Coccioli t Department of Electrical and Computer Engineering, Engineering Tower Room 416C, Irvine, CA 93697-2625 Phone: (949) 824-5631; fax: (949) 824-2321; email: franco@uci.edu * Department of Electrical Engineering, University of California at Los Angeles, 405 Hilgard Avenue, L
A Perfectly Matched Layer Absorber Formulation for Haar Wavelet Based MRTD
A Perfectly Matched Layer Absorber Fonnulation for Haar Wavelet Based MRTD Kavita Goverdhanaml, Costas D. Sarris1, Manos M. Tentzeris2 and Linda P. B. Katehi1 1 Radiation Laboratory, Department of Electrical Engineering and Computer Science University of Michigan, Ann Arbor, MI 48109-2122, U.S.A. 2 School of Electrical and Computer Engineering Georgia Institute of Technology, Atlanta, GA 30332-025
DESIGN OF BANDPASS AND LOWPASS EVANESCENT-MODE FILTERS ON RIDGED WAVEGUIDES
DESIGN OF BANDPASS AND LOWP ASS EVANESCENT-MODE FIL TERS ON RIDGED WAVEGUIDES Anatoly Kirilenko, Leonid Rud', Vladimir Tkachenko, and Dmitriy Kulik Institute of Radiophysicsand Electronicsof the National Academyof Sciences of Ukraine 12Acad. Proskura St., Kharkov,310085,Ukraine Fax: +380-572-441105,E-mail:kirilenko@ire.kharkov.ua Abstract - Some aspects of designing lowpass and bandpass evanescent