Title :
Wide band four-port butler matrix for switched multibeam antenna arrays
Author :
Denidni, Tayeb A. ; Libar, T.E.
Author_Institution :
Personal Commun. Group, Quebec Univ., Montreal, Que., Canada
Abstract :
This paper presents the design and realization of a wide band four-port microstrip matrix to feed a switched-beam antenna array for wireless applications at 1.9 GHz. The objective of this investigation is to develop an antenna-array feeding network based on Butler with a large bandwidth in order to cover the PCS band: 1900 MHZ to 2200 MHZ. In order to meet these requirements, wide band microwave components such as hybrids and crossovers were designed and used to Butler proposed matrix. The Butler matrix is used as a beamforming network that allows to produce orthogonal beams that can be steered in different directions. To examine the performance of the proposed matrix, simulated and experimental results is presented and discussed.
Keywords :
UHF antennas; antenna feeds; array signal processing; beam steering; broadband antennas; cellular radio; microstrip antenna arrays; multibeam antennas; 1.9 GHz; 1900 to 2200 MHz; PCS band; antenna-array feeding network; beamforming network; crossover matrix; hybrid matrix; microstrip matrix; orthogonal beam steering; switched multibeam antenna array; wide band four-port butler matrix; wide band microwave component; wireless application; Antenna arrays; Antenna feeds; Bandwidth; Broadband antennas; Butler matrix; Microstrip antenna arrays; Microstrip antennas; Personal communication networks; Transmission line matrix methods; Wideband;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1259161
