Design and Implementation of Beamforming Antenna System Based on Multiple Layered MTL

Doo-Yeong Yang

doi:10.5573/ieie.2020.57.4.23

Design and Implementation of Beamforming Antenna System Based on Multiple Layered MTL

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다층 MTL 기반 빔성형 안테나 시스템 설계 및 구현

Type: Academic journal

Author: Doo-Yeong Yang (제주대학교)

Journal: The Institute of Electronics and Information Engineers Journal of the Institute of Electronics and Information Engineers Vol.57 No.4(Wn.509) KCI Excellent Accredited Journal

Published: 2020.4

Pages: 23 - 29 (7page)

DOI: 10.5573/ieie.2020.57.4.23

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Design and Implementation of Beamforming Antenna System Based on Multiple Layered MTL

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The proposed beamforming antenna system is capable of adjusting the beam direction of array antenna as a feeding system with Butler matrix. The beam pattern of array antenna is determined by the magnitude and phase of feeding signal, and interval between antenna elements. Therefore, designing each component such as Butler matrix and array antenna is very important because those decide on the performance and beam direction. In this paper, we propose the 4⨉4 beamforming antenna combining Butler matrix and array antenna to extend bandwidth, and to reduce the size. The beamforming Antenna’s circuit is implemented in a multilayer technology. The multilayer compositions are resolved by using double layered microstrip transmission line (MTL). Finally, the switched beamforming antenna has been designed and fabricated on double layered MTL by the proposed configuration. And also, the simulation results and the measured results have been compared for performance analysis each other. As a result, the proposed beamforming antenna has good performance that the relative bandwidth, maximum return loss, insertion loss and progressive phase shift deviation are 24%, 15.76 dB, 6.5±0.8 dB and ±5° in operating frequency band, respectively. Also, the beam pattern according to each input has good coverage with a half power beamwidth of 30° within a range of 120° sector for mobile base station.

#Beamforming network #Butler matrix #Double layered microstrip transmission line (MTL) #Half power beamwidth of 30° #Sector coverage of 120°

요약
Abstract
Ⅰ. 서론
Ⅱ. 다층 MTL 기반 빔성형 안테나
Ⅲ. 시뮬레이션 및 측정결과
Ⅳ. 결론
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Jack H. Winter / 1998 / Smart Antennas for Wireless Systems / IEEE Personal Communications 1:23~27

G. A. Adamidis / 2002 / Development of Simple Smart Array Systems

J. Butler / 1961 / Beamforming matrix simplifies design of electrically scanned antennas / Electronics Design 9 :170~173

I. Sfar / 2014 / Design of a 4×4 Butler Matrix for Beamforming Antenna Applications / Proceedings of 2014 Neduterranean Microwave Symposium(MMS2014) :1~4

M. M. Alam / 2009 / Microstrip Antenna Array with Four Port Butler Matrix for Switched Beam Base Station Application / ICCIT ’09 12th International Conference on Computer and Informational Technology

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Fields Engineering > Electrical and Electronic Engineering Engineering > Electrical and Electronic Engineering > Electrical Engineering

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