Title :
Multibeam plane array using modified Butler matrix circuits
Author :
Feng, Zhenglie ; Yang, Yu
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
fDate :
6/21/1905 12:00:00 AM
Abstract :
An antenna array with multibeam is proposed with modified Butler phase shift network. The array is made up with four omni-direction antennas. Its pattern can be controlled by changing feeding port. It can completely cover horizontal surface. Direction resolution is 90 degree, and can be improved to 45 degree if distribution network is used. This kind of array can be used for base station or in approximate estimation of DOA
Keywords :
multibeam antennas; phase shifters; planar antenna arrays; Butler matrix circuit; DOA estimation; base station; direction resolution; distribution network; multibeam plane array; omni-direction antenna; phase shift network; Antenna arrays; Base stations; Butler matrix; Dipole antennas; Directive antennas; Frequency estimation; Microwave antenna arrays; Mobile communication; Phased arrays; Structural beams;
Conference_Titel :
Microwave Conference, 1999 Asia Pacific
Print_ISBN :
0-7803-5761-2
DOI :
10.1109/APMC.1999.828060
