UC-PBG Substrate for Planar Antennas Roberto Coccioli, Kuang-Ping Ma, Tatsuo Itoh Electrical Engineering Department, University of California at Los Angeles 405 Hilgard Avenue, Los Angeles, CA 90095-1594, USA e-mail: coccioli-ucla.edu; kpma-ee.ucla.edu; titoh-ucla.edu Abstract - The recently developed Uniplanar Compact Photonic Bandgap (UC-PBG) substrate is used to reduce surface wave losses for

Novel Isoflux Antenna Alternative for LEO Satellites Downlink J. E. Fernandez del Rio!, A. NubIa! , L. Bustamante!, F. Vila!, K. van't Klooster2,A. Frandsen3 IRYMSA. Space & Defense Division Ctra. Campo Real, Km 2,100.28500 Arganda del Rey, Madrid (Spain) Tel: +34918760707, Fax: +34918760708, e-mail: space.eng-rymsa.com, http://www.rymsa.com 2ESA. Electromagnetics Division Keplerlaan I-P.O. Box 29

COPLANAR VERSUS SLOTLINE MODE IN EXCITING CPW-FED PLANAR ANTENNAS Ezzeldin A. Solimanl.2, Guy A. E. Vandenbosch2, and Eric Beynel IIMEC, Kapeldreef 75, B-3001 Leuven, Belgium. 2K. U. Leuven, ESATrrELEMIC, Kardinaal Mercierlaan 94, B-3001 Leuven, Belgium. eMail: soliman-imec.be Abstract - In this paper we report on the first theoretical analysis of feeding planar antennas with the slotlinemode of

ANALYSIS AND PERFORMANCE VERIFICATION OF ADVANCED COMPENSATED COMPACT RANGES J. Hartmann, D. Fasold Fachhochschule Miinchen, University of Applied Sciences, Electrical and Electronics Eng. Dept., Laboratory for Satellite Communications Dachauer Stra.6e 98 b, 80323 MOnchen, Germany Phone: +49 89/ 1265 1246 Fax: +49 89 / 1265 1299 e-mail: hartmann-e-technik.fh-muenchen.de.fasold-e-technik.fh-muench

Low Cost Broadband Antenna with SDMA Capability for Next Generation PCS Base Stations *D. Loffler, Y. Venot, W. Wiesbeck Institut fur Hochstfrequenztechnik und Elektronik, University of Karlsruhe, KaiserstraBe 12, 76128 Karlsruhe, Gennany phone: +49721 608 2525, fax: +49721 691865, e-mail: Dietmar.Loeffler-etec.uni-karlsruhe.de Abstract -- Following the demands of modern society for more mobility

ANTENNA ARRAY PATTERN SYNTHESIS IN THE PRESENCE OF NEARZONESCATTERERS: THREE-DIMENSIONAL VECTOR CASE M. Vicente-Lozano, F. Ares-Pena Grupo de Sistemas Radiantes, Dept. de Ffsica Aplicada. Facultad de Ffsica, Universidad de Santiago de Compostela. 15706 Santiago de Compostela, SPAIN Tel:+34 981547084, Fax: +34 981520676, E-mail: faares-usc.es Abstract- A method for the array pattern synthesis in th

OMNIDIRECTIONAL SLOTTED-WAVEGUIDE ARRAY ANTENNA Wilfiied GrabheITI and Bernhard Hude~ 1 DaimlerChrysler Aerospace, Defense and Civil Systems, D-89077 Ulm Phone +49 7313925179, Fax +497313923362, E-Mail grabherr-Vs.dasa.de 2 Fachhochschule Kempten. Fachbereich Elektrotechnik, D-87435 Kempten Phone +498312523 173, Fax +498312523 197, E-Mail huder-fh-kempten.de ABSTRACT - An omnidirectional anten

An Active Integrated Leaky-Mode Antenna Array for Radio Frequency Identification Ching-Kuang C. Tzuang*, Chao-Tsu Chen*, To-Po Wang*, Cheng-Nan Hu*, Tso-Cheng Hsu*, Fung-Yaw Lin**, Antony C. C. Chao**, Hsun-Jung Cho**. *Institute of Electrical Communication Engineering National Chiao Tung University 1001 Ta Hsueh Road, Hsinchu, Taiwan Tel: +886 3 573 1847 Fax: +88635719247 e-mail:cktzuang-cc.nctu.

IMPROVING PERFORMANCE IN LEAKY - WAVE ANTENNAS BASED ON UNIFORM MICROSTRIP LINES P. Baccarelli, P. Burghignoli, C. Di Nallo, F. Frezza, A. Galli, and P. Lampariello "La Sapienza" University of Rome - Department of Electronic Engineering . Via Eudossiana 18,00184 Roma,Italy Phone: +39-06-44585852; Fax: +39-06-4742647; E-mail: plamp-die.ing.uniromal.it Abstract - In this work we analyze some pers

PACKAGE EFFECTS CAUSED BY LEAKY MODES AT HIGHER FREQUENCIES IN MICROWAVE INTEGRATED CIRCUITS Arthur A. Oliner Department of Electrical Engineering Polytechnic University Brooklyn, NY, USA Abstract: When a microwave integrated circuit is placed in a package, the leakage properties of the transmission lines can change significantly, and these package effects may produce new physical behavior or sim