An analog implementation of a baseband beamformer P. Delmotte, G.A.E. Vandenbosch Katholieke Universiteit Leuven - ESAT/Telemic B-3001 Leuven, Belgium Abstract-- In this paper, the implementation of a baseband beamforming network is presented, together with measurement results from a 8x1 antenna array. The beamformer only uses analog signal processing, although the programming of the phase and am

Experimental Investigation of Indoor Propagation Characteristics and Performance for Wireless LAN at 2.4/5.3GHz Jae-Woo Lim1, Yong-Sub Shin, Jong-Gwan Yook2, Han-Kyu Park 1 Radio Research Laboratory, MIC, Yongsan-gu Wonhyo-ro 3-1 Seoul, 140-848, Korea, +82 2 710 6463 2 Yonsei University, Shinchon-dong, Seodaemun-gu 134, Seoul, 120-749, Korea, +82 2 2123 3565 Abstract -- Recently as demands for t

Fog attenuation of a laser radiation in the 0.69 to 1.55 µm spectral region Al Naboulsi Maher1,2, Sizun Hervé1, De Fornel Frédérique2 France Télécom R&D, 6 avenue des Usines 90007 Belfort (France) 2 Université de Bourgogne, 9 avenue A. Savary 21079 Dijon (France) 1 Abstract - We study in this paper the problem of atmospheric attenuation for a laser radiation in the visible and infrared bandwidth

HARDWARE REAL-TIME SIMULATOR (HWES) for Smart Antennas 2003 Gerhard Humer1, Reinhard Kloibhofer1, Harald Eberl1, Gerhard Steinböck1 1 ARC Seibersdorf research GmbH, ITS, A-2444 Seibersdorf, Austria, +43-(0)50550-4126 efficiency, complexity and the required calculation time. The channel model can be parameterized according to the desired transmission conditions. Abstract -- The field of smart ant

Four-element smart antenna for direction estimation and fading reduction in two-wave propagation condition Andriy Synyavskyy, Krzysztof Kurek, Jozef Modelski, Yevhen Yashchyshyn Warsaw University of Technology, Institute of Radioelectronics, Nowowiejska 15/19, 00-665 Warsaw, Poland, Phone +48 22 660 54 76, Fax +48 22 825 37 69, e-mail: A.Syniawski-ire.pw.edu.pl, K.Kurek-ire.pw.edu.pl, J.Modelski-i

Dual-Frequency Internal Microstrip Antenna for Wireless LAN's Hisao Iwasaki and Kazuo Tamakuma Faculty of Systems Engineering Shibaura Institute of Technology 307 Fukasaku minumaku Saitama 337-8570 Japan Tel:+81-48-687-5803 Fax:+81-48-687-5198 e-mail:iwasaki-sic.shibaura-it.ac.jp Abst r act - This paper descr ibes t he calculat ed r esult s of t he novel int er nal dual-fr equency ant enna by usi

A New Based Equalizer Multistage Multiuser Detector For Asynchronous DS-CDMA Systems J. P. Cances, G.R. Mohammad-Khani and V. Meghdadi Cances (reza, meghdadi) -ensil.unilim.fr University of Limoges / ENSIL, Parc ESTER Technopole, 87068 Limoges, France Abstract- We present in this paper a new multiuser receiver for asynchronous communications over multipath fading channels in a DSCDMA system. The d

2-D DFT BEAMSPACE TLS-ESPRIT ALGORITHM WITH STRUCTURE WEIGHTING FOR JOINT AZIMUTHELEVATION ESTIMATION Volodymyr Vasylyshyn Kharkov Air Force Institute, 228 Klochkovskaya street, 61165, Kharkov, Ukraine Abstract -- In this paper the problem of simultaneous direction-of-arrival (azimuth and elevation) estimation using the uniform rectangular array (URA) is considered. In the wireless mobile communi

Comparative Study for Optimal Performance of Space-Time Coding in Next-Generation Wireless Systems Raed Shubair, Fahad Belhoul, Jasim Madfa, Waleed Raeesi Communication Engineering Department, Etisalat College of Engineering, P. O. Box 980, Sharjah, UAE Abstract -- This paper presents a comparative study of space-time coding for broadband wireless communications. A space time trellis code (STTC) s

DESIGN OF SMALL SLOT ARRAY INCLUDING THE EFFECT OF MUTUAL COUPLING AND WALL THICKNESS BHAROTI SINHASMIEEE,FIETE Department of Electronics and Computer Engineering Indian Institute of Technology Roorkee Roorkee-247667,UA,India e-mail: bharoti-sinha-ieee.org ABSTRACT A moment method has been presented to analyze small linear arrays consisting of longitudinal slot in the broad wall of a rectangular w