Vol. 24

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2011-09-06

Design and Implementation of a Compact Planar 4 X 4 Microstrip Butler Matrix for Wideband Application

By Chun Hong Chen, Hongmei Wu, and Wen Wu
Progress In Electromagnetics Research C, Vol. 24, 43-55, 2011
doi:10.2528/PIERC11072614

Abstract

A compact planar 4 x 4 microstrip Butler matrix is proposed in this paper. It is a wideband beam-forming network with the advantages of compact size, low cost and ease of fabrication. Three-branch line couplers with lumped-distributed elements are adopted to reduce the size, and multi-U-shaped coupled-line Schiffman phase shifters are designed to get good transmission and phase performances. The Butler matrix is fabricated and measured, and a good agreement is found between the simulated and measured results, which makes it very attractive for wideband multi-beam antenna applications.

Citation


Chun Hong Chen, Hongmei Wu, and Wen Wu, "Design and Implementation of a Compact Planar 4 X 4 Microstrip Butler Matrix for Wideband Application," Progress In Electromagnetics Research C, Vol. 24, 43-55, 2011.
doi:10.2528/PIERC11072614
http://jpier.org/PIERC/pier.php?paper=11072614

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