Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications

In this paper, we propose a closely spaced two-port microstrip patch antenna system with significant isolation enhancement (> 90 dB), which can be deployed for MIMO as well as full-duplex transceiver systems. We deploy a resonant combination of rectangular defected ground structure (DGS)...

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Autores principales:	Jogesh Chandra Dash, Debdeep Sarkar
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Full-duplex MIMO mutual coupling reduction microstrip antenna self-interference cancellation Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/a06653656f97453f857dfa410062eb92
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spelling	oai:doaj.org-article:a06653656f97453f857dfa410062eb922021-12-01T00:01:23ZMicrostrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications2169-353610.1109/ACCESS.2021.3128997https://doaj.org/article/a06653656f97453f857dfa410062eb922021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9618907/https://doaj.org/toc/2169-3536In this paper, we propose a closely spaced two-port microstrip patch antenna system with significant isolation enhancement (> 90 dB), which can be deployed for MIMO as well as full-duplex transceiver systems. We deploy a resonant combination of rectangular defected ground structure (DGS) and a near-field decoupling structure (NFDS) in the vicinity of a closely spaced (inter-element spacing <inline-formula> <tex-math notation="LaTeX">$= {0.01\lambda _{0}}$ </tex-math></inline-formula>) two-port microstrip patch antenna system at 5.85 GHz. This drastically reduces the port-to-port mutual coupling (< −90 dB), which can help in self-interference cancellation for full-duplex point of view without any additional circuitry, while still preserving desired impedance matching performance (< −15 dB). The broadside gain of individual antennas in the two port MIMO system is 7.11 dBi, with 97% efficiency and co-to-cross-polar level < 25 dB. The proposed concept is validated by full-wave simulation in CST Microwave Studio, as well as experimental results on fabricated prototype. Moreover, MIMO performance metrics such as total active reflection coefficient (<italic>TARC</italic>), envelop correlation coefficient (<italic>ECC</italic>) and channel capacity loss (<italic>CCL</italic>) are analysed using simulation and measurement.Jogesh Chandra DashDebdeep SarkarIEEEarticleFull-duplexMIMOmutual coupling reductionmicrostrip antennaself-interference cancellationElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 156222-156228 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Full-duplex MIMO mutual coupling reduction microstrip antenna self-interference cancellation Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Full-duplex MIMO mutual coupling reduction microstrip antenna self-interference cancellation Electrical engineering. Electronics. Nuclear engineering TK1-9971 Jogesh Chandra Dash Debdeep Sarkar Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications
description	In this paper, we propose a closely spaced two-port microstrip patch antenna system with significant isolation enhancement (> 90 dB), which can be deployed for MIMO as well as full-duplex transceiver systems. We deploy a resonant combination of rectangular defected ground structure (DGS) and a near-field decoupling structure (NFDS) in the vicinity of a closely spaced (inter-element spacing <inline-formula> <tex-math notation="LaTeX">$= {0.01\lambda _{0}}$ </tex-math></inline-formula>) two-port microstrip patch antenna system at 5.85 GHz. This drastically reduces the port-to-port mutual coupling (< −90 dB), which can help in self-interference cancellation for full-duplex point of view without any additional circuitry, while still preserving desired impedance matching performance (< −15 dB). The broadside gain of individual antennas in the two port MIMO system is 7.11 dBi, with 97% efficiency and co-to-cross-polar level < 25 dB. The proposed concept is validated by full-wave simulation in CST Microwave Studio, as well as experimental results on fabricated prototype. Moreover, MIMO performance metrics such as total active reflection coefficient (<italic>TARC</italic>), envelop correlation coefficient (<italic>ECC</italic>) and channel capacity loss (<italic>CCL</italic>) are analysed using simulation and measurement.
format	article
author	Jogesh Chandra Dash Debdeep Sarkar
author_facet	Jogesh Chandra Dash Debdeep Sarkar
author_sort	Jogesh Chandra Dash
title	Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications
title_short	Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications
title_full	Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications
title_fullStr	Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications
title_full_unstemmed	Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications
title_sort	microstrip patch antenna system with enhanced inter-port isolation for full-duplex/mimo applications
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/a06653656f97453f857dfa410062eb92
work_keys_str_mv	AT jogeshchandradash microstrippatchantennasystemwithenhancedinterportisolationforfullduplexmimoapplications AT debdeepsarkar microstrippatchantennasystemwithenhancedinterportisolationforfullduplexmimoapplications
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Microstrip Patch Antenna System With Enhanced Inter-Port Isolation for Full-Duplex/MIMO Applications

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