Title :
Design of X-band 4Ã\x974 Butler Matrix for Microstrip Patch Antenna Array
Author :
Khan, Osama Ullah
Author_Institution :
Electron. Eng. Dept., NED Univ. of Eng. & Technol.
Abstract :
This paper presents the design of planar 4times4 Butler matrix in X-band at center frequency of 8.3 GHz for satellite application. The Butler matrix is used as a beam-forming network to feed circularly polarized 4-element linear array to produce four steerable beams. The direction of these beam patterns are plusmn15deg and plusmn40deg with effective coverage over 120deg. The network is designed to work over the frequency range from 8.25 GHz to 8.35 GHz. The phase errors and couplings are within 8deg and -6.2plusmn0.5 dB respectively
Keywords :
antenna feeds; electromagnetic wave polarisation; microstrip antenna arrays; satellite antennas; 8.25 to 8.35 GHz; X-band butler matrix; antenna feed; beam patterns; beam-forming network; circularly polarized 4-element linear array; microstrip patch antenna array; satellite application; Butler matrix; Design engineering; Feeds; Frequency; Geometry; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Polarization; Transmission line matrix methods; 4x4 Butler matrix; Beam-forming Network; Microstrip Antenna Array;
Conference_Titel :
TENCON 2006. 2006 IEEE Region 10 Conference
Conference_Location :
Hong Kong
Print_ISBN :
1-4244-0548-3
Electronic_ISBN :
1-4244-0549-1
DOI :
10.1109/TENCON.2006.343831
