Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board

Abstract The paper demonstrates an effective technique to significantly enhance the bandwidth and radiation gain of an otherwise narrowband composite right/left-handed transmission-line (CRLH-TL) antenna using a non-Foster impedance matching circuit (NF-IMC) without affecting the antenna’s stability...

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Autores principales:	Mohammad Alibakhshikenari, Bal S. Virdee, Ayman A. Althuwayb, Leyre Azpilicueta, Naser Ojaroudi Parchin, Chan H. See, Raed A. Abd-Alhameed, Francisco Falcone, Isabelle Huynen, Tayeb A. Denidni, Ernesto Limiti
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8f63b1c05899432085d5adb48717a280
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spelling	oai:doaj.org-article:8f63b1c05899432085d5adb48717a2802021-12-02T13:26:24ZBandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board10.1038/s41598-021-86973-x2045-2322https://doaj.org/article/8f63b1c05899432085d5adb48717a2802021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86973-xhttps://doaj.org/toc/2045-2322Abstract The paper demonstrates an effective technique to significantly enhance the bandwidth and radiation gain of an otherwise narrowband composite right/left-handed transmission-line (CRLH-TL) antenna using a non-Foster impedance matching circuit (NF-IMC) without affecting the antenna’s stability. This is achieved by using the negative reactance of the NF-IMC to counteract the input capacitance of the antenna. Series capacitance of the CRLH-TL unit-cell is created by etching a dielectric spiral slot inside a rectangular microstrip patch that is grounded through a spiraled microstrip inductance. The overall size of the antenna, including the NF-IMC at its lowest operating frequency is 0.335λ0 × 0.137λ0 × 0.003λ0, where λ0 is the free-space wavelength at 1.4 GHz. The performance of the antenna was verified through actual measurements. The stable bandwidth of the antenna for \|S11\|≤ − 18 dB is greater than 1 GHz (1.4–2.45 GHz), which is significantly wider than the CRLH-TL antenna without the proposed impedance matching circuit. In addition, with the proposed technique the measured radiation gain and efficiency of the antenna are increased on average by 3.2 dBi and 31.5% over the operating frequency band.Mohammad AlibakhshikenariBal S. VirdeeAyman A. AlthuwaybLeyre AzpilicuetaNaser Ojaroudi ParchinChan H. SeeRaed A. Abd-AlhameedFrancisco FalconeIsabelle HuynenTayeb A. DenidniErnesto LimitiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mohammad Alibakhshikenari Bal S. Virdee Ayman A. Althuwayb Leyre Azpilicueta Naser Ojaroudi Parchin Chan H. See Raed A. Abd-Alhameed Francisco Falcone Isabelle Huynen Tayeb A. Denidni Ernesto Limiti Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board
description	Abstract The paper demonstrates an effective technique to significantly enhance the bandwidth and radiation gain of an otherwise narrowband composite right/left-handed transmission-line (CRLH-TL) antenna using a non-Foster impedance matching circuit (NF-IMC) without affecting the antenna’s stability. This is achieved by using the negative reactance of the NF-IMC to counteract the input capacitance of the antenna. Series capacitance of the CRLH-TL unit-cell is created by etching a dielectric spiral slot inside a rectangular microstrip patch that is grounded through a spiraled microstrip inductance. The overall size of the antenna, including the NF-IMC at its lowest operating frequency is 0.335λ0 × 0.137λ0 × 0.003λ0, where λ0 is the free-space wavelength at 1.4 GHz. The performance of the antenna was verified through actual measurements. The stable bandwidth of the antenna for \|S11\|≤ − 18 dB is greater than 1 GHz (1.4–2.45 GHz), which is significantly wider than the CRLH-TL antenna without the proposed impedance matching circuit. In addition, with the proposed technique the measured radiation gain and efficiency of the antenna are increased on average by 3.2 dBi and 31.5% over the operating frequency band.
format	article
author	Mohammad Alibakhshikenari Bal S. Virdee Ayman A. Althuwayb Leyre Azpilicueta Naser Ojaroudi Parchin Chan H. See Raed A. Abd-Alhameed Francisco Falcone Isabelle Huynen Tayeb A. Denidni Ernesto Limiti
author_facet	Mohammad Alibakhshikenari Bal S. Virdee Ayman A. Althuwayb Leyre Azpilicueta Naser Ojaroudi Parchin Chan H. See Raed A. Abd-Alhameed Francisco Falcone Isabelle Huynen Tayeb A. Denidni Ernesto Limiti
author_sort	Mohammad Alibakhshikenari
title	Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board
title_short	Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board
title_full	Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board
title_fullStr	Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board
title_full_unstemmed	Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board
title_sort	bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8f63b1c05899432085d5adb48717a280
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Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board

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