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Tri-beam slot antenna array based on substrate integrated waveguide (SIW) technology

Published online by Cambridge University Press:  20 September 2019

Zhenye Wang ,
Xiwang Dai Open the ORCID record for Xiwang Dai [Opens in a new window]  and
Wen Sun
Zhenye Wang
Affiliation:
School of Electronic Information, Hangzhou Dianzi University, Hangzhou310018, China
Xiwang Dai*
Affiliation:
School of Electronic Information, Hangzhou Dianzi University, Hangzhou310018, China
Wen Sun
Affiliation:
School of Electronic Information, Hangzhou Dianzi University, Hangzhou310018, China
*
Author for correspondence: Xiwang Dai, E-mail: xwdai@hdu.edu.cn
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Abstract

A novel tri-beam slot antenna array based on substrate integrated waveguide (SIW) technology is proposed in this paper. The beam forming network is a 3 × 3 Butler matrix consisted of three couplers and four phase shifters. A 1.76 dB coupler is located between two 3 dB couplers, with this arrangement; the input signal can be divided into three parts with the same amplitude and certain phase differences. Two parallel slots are cut off broadside of SIW transmission line, which constitutes the basic unit of the antenna array. A 3 × 2 slot antenna array is connected with this circuit. Three beams with the directions of −30, 0 and 30° are produced when different ports are excited, respectively. The S parameters, radiation patterns, and gains are simulated and measured, which show that it can be a candidate for multi-beam wireless communication systems.

Keywords

SIWslot antennatri-beam
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 12 , Issue 3 , April 2020 , pp. 246 - 251
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2019

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