The Effects of Rain Over LMDS Systems Csaba Sinka, János Bitó* Budapest University of Technology and Economics Department of Broadband Infocommunication Systems, Goldmann György tér 3., Budapest, H-1111, Hungary, tel: (+36 1) 463-3616, fax: (+36 1) 463-3289 e-mail: csaba-docs4.mht.bme.hu, bito-mht.bme.hu* The demand of broadband services is increasing continuously and rapidly everywhere in the wor

A Rain Rate Data Base Useful to Simulate Reliable Rain Attenuation Time Series for Applications to Satellite and Tropospheric Communication Systems Emilio Matricciani, Mario Mauri, Carlo Riva Dipartimento di Elettronica e Informazione and CSTS-CNR, Politecnico di Milano Piazza Leonardo da Vinci 32, 20133 Milan, Italy matricci, mauri, riva-elet.polimi.it In satellite systems, or in the new ones usi

NOVEL COUPLED-LINE MICROSTRIP BANDPASS FILTER WITH 2nd & 3rd SPURIOUS PASSBANDS SUPPRESSION S. W. Ting, K. P. Lei, C. P. Chiang, and K.W. Tam Faculty of Science & Technology, University of Macau, P.O. Box 3001, Macau, China (Email: tonyting-umac.mo) Abstract ­ In this paper, a novel parallel coupled-line filter structure based on a reformulation of the sinusoidal modulation of the wiggly-line filt

Highly Selective Microstrip Bandpass Filters in Ka-Band Yu-Meng Yan, Ying-Tang Chang, Huei Wang, Ruey-Beei Wu, and Chun Hsiung Chen Department of Electrical Engineering and Graduate Institute of Communication Engineering, National Taiwan University, Taipei 106, Taiwan Tel: 886-2-23635251-x221, Fax: 886-2-23638247, E-mail: chchen-ew.ee.ntu.edu.tw Highly selective microstrip bandpass filters in Ka-b

1 Design of Planer type Comb-Line Bandpass Filter And Design Parameter Extraction Using FE Analysis Jae-Ho Youn, Hyeong-Seok Kim, Byeong-Gwon Kang, Jun-Seok Park, Sun-Hyung Kim, and Jae-Bong Lim Division of Information Technology Engineering, Soonchunhyang Univ., Asan, 336-745, Korea Department of EE, Kookmin Univ. Seoul, 136-702, Korea coupled-line to meet the calculated design parameter valu

DOE Based Design Method For Coupled-Lines Narrow Bandpass Filter Response Improvement. Gaëtan PRIGENT, Eric RIUS, François LE PENNEC, Sandrick LE MAGUER Michel NEY, Marcel LE FLOCH. LEST- UBO/ENST-Br, BP 809, 29285 Brest Cedex, France. Tel : +(33) 2 98 01 70 79, Fax : +(33) 2 98 01 63 95 E-mail : Gaetan.Prigent-univ-brest.fr Abstract -- In this paper we discuss about various modifications of class

Design Of Microstrip Duplexers For Mobile Communications Using Single-Sided Filters Giuseppe Macchiarella*, Alberto Bovatti** * Dipartimento di Elettronica e informazione del Politecnico di Milano Piazza Leonardo da Vinci, 32 20133 Milano, ITALY e-mail: macchiar-elet.polimi.it ** FOREM S.r.l. , Via Archimede 22/24, 20041 Agrate Brianza (Mi), ITALY ABSTRACT This paper describes a novel approach to

CAD AND MECHANICAL REALIZATION OF PLANAR, KA-BAND, 8x8 BUTLER MATRICES B. Piovano, L. Accatino, F. Muoio, G. Caille(*), M. Mongiardo(**) Telecom Italia Lab (formerly CSELT) via Reiss Romoli, 274 - 10148 Torino, Italy ¤¤ ABSTRACT DIEI, Universitµ di Perugia, I-06100 Perugia, Italy a ¤ ALCATEL Space, Toulouse Butler matrices of order four (4x4) have been recently investigated concerning their

A Stepwise Recursive Search Algorithm for Adaptive Control of the Electronically Steerable Parasitic Array Radiator Antenna Kyouichi IIGUSA, Jun CHENG, Takashi OHIRA ATR Adaptive Communications Research Laboratories 2-2-2 Hikaridai, Keihanna Science City, Kyoto 619-0288, Japan, e-mail: {iigusa, cheng, ohira}-atr.co.jp A stepwise recursive search algorithm (SRSA) is proposed for adaptively controll

Double-Layer Structure of Rectangular-Waveguides for Butler Matrix J. Hirokawa, M. Furukawa*, K. Tsunekawa**, N. Goto*** Dept. of Electrical & Electronic Eng., Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro, Tokyo 152-8552, Japan, jiro-antenna.pe.titech.ac.jp * Microwave Circuit Div., Nihon Dengyo Kosaku Co., Ltd, 3 Takenouchi, Sakado, Saitama 350-0264, Japan, m-furukawa-ndk-k.co.jp ** Wi