A Bisection Method-Based Controlling Scheme for Phased Array Antenna with Slow Switching Speed-Phase Shifters

Quoc Tuan TRAN
Shinsuke HARA
Atsushi HONDA
Ichirou IDA
Yasuyuki OISHI

IEICE TRANSACTIONS on Communications   Vol.E91-B    No.5    pp.1557-1567
Publication Date: 2008/05/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.5.1557
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
MEMS,  phase shifter,  IEEE 802.11a,  bit-size,  one-dimension search,  bisection,  

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Phased array antennas are attractive in terms of low cost and power consumption. This paper proposes a controlling scheme based on a bisection method for phased array antennas employing phase shifters with slow switching speed, which is typical for Micro Electro Mechanical Systems (MEMS) switches. Computer simulation results, assuming the IEEE 802.11a Wireless Local Area Network (WLAN) standard, show that the proposed scheme has good gain enhancement capability in multipath fading channels.