2.45 GHz Active Isolator based on asymmetric coupler

An active isolator achieving both high isolation and low insertion loss at 2.45 GHz is proposed. The isolator is based on an asymmetric coupler and is designed to leverage the gain and reverse isolation of an amplifier and coupling coefficients between the input and output of the coupler. The insert...

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Autores principales:	Ui-Gyu Choi, Bo-Yoon Yoo, Seong-Tae Han, Jong-Ryul Yang
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	active isolator asymmetric coupler amplifier high isolation optimum design methodology Control engineering systems. Automatic machinery (General) TJ212-225 Automation T59.5
Acceso en línea:	https://doaj.org/article/68a6aa9b04a7450eb316cdb90ca2eb5e
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id	oai:doaj.org-article:68a6aa9b04a7450eb316cdb90ca2eb5e
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spelling	oai:doaj.org-article:68a6aa9b04a7450eb316cdb90ca2eb5e2021-11-04T15:00:41Z2.45 GHz Active Isolator based on asymmetric coupler0005-11441848-338010.1080/00051144.2021.1984633https://doaj.org/article/68a6aa9b04a7450eb316cdb90ca2eb5e2021-10-01T00:00:00Zhttp://dx.doi.org/10.1080/00051144.2021.1984633https://doaj.org/toc/0005-1144https://doaj.org/toc/1848-3380An active isolator achieving both high isolation and low insertion loss at 2.45 GHz is proposed. The isolator is based on an asymmetric coupler and is designed to leverage the gain and reverse isolation of an amplifier and coupling coefficients between the input and output of the coupler. The insertion loss and isolation of the isolator are enhanced by using the coefficients, and the power level with optimal isolation can be determined for a target specification. The asymmetric coupler increases the power handling capability of the proposed isolator that has a low coupling coefficient and achieves highly efficient isolation with a high coupling coefficient. Electromagnetic-circuit co-simulation results show that the proposed isolator with operation stability has ≥40 dB isolation and <1 dB insertion loss for input power between 0−8 dBm.Ui-Gyu ChoiBo-Yoon YooSeong-Tae HanJong-Ryul YangTaylor & Francis Grouparticleactive isolatorasymmetric coupleramplifierhigh isolationoptimum design methodologyControl engineering systems. Automatic machinery (General)TJ212-225AutomationT59.5ENAutomatika, Vol 62, Iss 3-4, Pp 449-453 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	active isolator asymmetric coupler amplifier high isolation optimum design methodology Control engineering systems. Automatic machinery (General) TJ212-225 Automation T59.5
spellingShingle	active isolator asymmetric coupler amplifier high isolation optimum design methodology Control engineering systems. Automatic machinery (General) TJ212-225 Automation T59.5 Ui-Gyu Choi Bo-Yoon Yoo Seong-Tae Han Jong-Ryul Yang 2.45 GHz Active Isolator based on asymmetric coupler
description	An active isolator achieving both high isolation and low insertion loss at 2.45 GHz is proposed. The isolator is based on an asymmetric coupler and is designed to leverage the gain and reverse isolation of an amplifier and coupling coefficients between the input and output of the coupler. The insertion loss and isolation of the isolator are enhanced by using the coefficients, and the power level with optimal isolation can be determined for a target specification. The asymmetric coupler increases the power handling capability of the proposed isolator that has a low coupling coefficient and achieves highly efficient isolation with a high coupling coefficient. Electromagnetic-circuit co-simulation results show that the proposed isolator with operation stability has ≥40 dB isolation and <1 dB insertion loss for input power between 0−8 dBm.
format	article
author	Ui-Gyu Choi Bo-Yoon Yoo Seong-Tae Han Jong-Ryul Yang
author_facet	Ui-Gyu Choi Bo-Yoon Yoo Seong-Tae Han Jong-Ryul Yang
author_sort	Ui-Gyu Choi
title	2.45 GHz Active Isolator based on asymmetric coupler
title_short	2.45 GHz Active Isolator based on asymmetric coupler
title_full	2.45 GHz Active Isolator based on asymmetric coupler
title_fullStr	2.45 GHz Active Isolator based on asymmetric coupler
title_full_unstemmed	2.45 GHz Active Isolator based on asymmetric coupler
title_sort	2.45 ghz active isolator based on asymmetric coupler
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/68a6aa9b04a7450eb316cdb90ca2eb5e
work_keys_str_mv	AT uigyuchoi 245ghzactiveisolatorbasedonasymmetriccoupler AT boyoonyoo 245ghzactiveisolatorbasedonasymmetriccoupler AT seongtaehan 245ghzactiveisolatorbasedonasymmetriccoupler AT jongryulyang 245ghzactiveisolatorbasedonasymmetriccoupler
_version_	1718444776044363776

2.45 GHz Active Isolator based on asymmetric coupler

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