Novel Dual-Band Beam-Scanning/Switching Network Based on a Hybrid Coupler With Synchronously Tuned Phase Differences

This paper proposes a novel feeding network that enables the antenna array to perform dual-band continuous beam scanning and beam switching between forward and backward directions. Specifically, the switchable beam is controlled by the network input and the beam in each direction is continuously ste...

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Autores principales:	Pei-Ling Chi, Chun-Pin Chien, Anrong Chen, Tao Yang
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Beam-scanning network beam-switching network coupler dual-band hybrid phase difference Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/5790a50879464425ad208f8f011daded
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spelling	oai:doaj.org-article:5790a50879464425ad208f8f011daded2021-12-02T00:00:23ZNovel Dual-Band Beam-Scanning/Switching Network Based on a Hybrid Coupler With Synchronously Tuned Phase Differences2169-353610.1109/ACCESS.2021.3130210https://doaj.org/article/5790a50879464425ad208f8f011daded2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9624997/https://doaj.org/toc/2169-3536This paper proposes a novel feeding network that enables the antenna array to perform dual-band continuous beam scanning and beam switching between forward and backward directions. Specifically, the switchable beam is controlled by the network input and the beam in each direction is continuously steerable at either frequency. To support a wide range of beam-scanning angles, a novel dual-band coupler with synchronously tuned differential phases is applied to the feeding network, together with a pair of phase shifters. The operating principles and design equations of the dual-band beam-scanning/switching network, coupler, and phase shifters will be given in detail. As a proof-of-concept, a 0.9-GHz/1.8-GHz beam-scanning/switching network was prototyped alongside a <inline-formula> <tex-math notation="LaTeX">$1\times 4$ </tex-math></inline-formula> linear array. Experimental results show that the array can scan and switch its main beam from −24° to −42° in the backward direction and from 24° to 34° in the forward direction at 0.9 GHz, while the beam scanning is from −12° to −24° and from 12° to 22° at 1.8 GHz.Pei-Ling ChiChun-Pin ChienAnrong ChenTao YangIEEEarticleBeam-scanning networkbeam-switching networkcouplerdual-bandhybridphase differenceElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 157151-157164 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Beam-scanning network beam-switching network coupler dual-band hybrid phase difference Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Beam-scanning network beam-switching network coupler dual-band hybrid phase difference Electrical engineering. Electronics. Nuclear engineering TK1-9971 Pei-Ling Chi Chun-Pin Chien Anrong Chen Tao Yang Novel Dual-Band Beam-Scanning/Switching Network Based on a Hybrid Coupler With Synchronously Tuned Phase Differences
description	This paper proposes a novel feeding network that enables the antenna array to perform dual-band continuous beam scanning and beam switching between forward and backward directions. Specifically, the switchable beam is controlled by the network input and the beam in each direction is continuously steerable at either frequency. To support a wide range of beam-scanning angles, a novel dual-band coupler with synchronously tuned differential phases is applied to the feeding network, together with a pair of phase shifters. The operating principles and design equations of the dual-band beam-scanning/switching network, coupler, and phase shifters will be given in detail. As a proof-of-concept, a 0.9-GHz/1.8-GHz beam-scanning/switching network was prototyped alongside a <inline-formula> <tex-math notation="LaTeX">$1\times 4$ </tex-math></inline-formula> linear array. Experimental results show that the array can scan and switch its main beam from −24° to −42° in the backward direction and from 24° to 34° in the forward direction at 0.9 GHz, while the beam scanning is from −12° to −24° and from 12° to 22° at 1.8 GHz.
format	article
author	Pei-Ling Chi Chun-Pin Chien Anrong Chen Tao Yang
author_facet	Pei-Ling Chi Chun-Pin Chien Anrong Chen Tao Yang
author_sort	Pei-Ling Chi
title	Novel Dual-Band Beam-Scanning/Switching Network Based on a Hybrid Coupler With Synchronously Tuned Phase Differences
title_short	Novel Dual-Band Beam-Scanning/Switching Network Based on a Hybrid Coupler With Synchronously Tuned Phase Differences
title_full	Novel Dual-Band Beam-Scanning/Switching Network Based on a Hybrid Coupler With Synchronously Tuned Phase Differences
title_fullStr	Novel Dual-Band Beam-Scanning/Switching Network Based on a Hybrid Coupler With Synchronously Tuned Phase Differences
title_full_unstemmed	Novel Dual-Band Beam-Scanning/Switching Network Based on a Hybrid Coupler With Synchronously Tuned Phase Differences
title_sort	novel dual-band beam-scanning/switching network based on a hybrid coupler with synchronously tuned phase differences
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/5790a50879464425ad208f8f011daded
work_keys_str_mv	AT peilingchi noveldualbandbeamscanningswitchingnetworkbasedonahybridcouplerwithsynchronouslytunedphasedifferences AT chunpinchien noveldualbandbeamscanningswitchingnetworkbasedonahybridcouplerwithsynchronouslytunedphasedifferences AT anrongchen noveldualbandbeamscanningswitchingnetworkbasedonahybridcouplerwithsynchronouslytunedphasedifferences AT taoyang noveldualbandbeamscanningswitchingnetworkbasedonahybridcouplerwithsynchronouslytunedphasedifferences
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Novel Dual-Band Beam-Scanning/Switching Network Based on a Hybrid Coupler With Synchronously Tuned Phase Differences

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