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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
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...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8018970/ https://www.ncbi.nlm.nih.gov/pubmed/33811233 http://dx.doi.org/10.1038/s41598-021-86973-x |
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author | Alibakhshikenari, Mohammad Virdee, Bal S. Althuwayb, Ayman A. Azpilicueta, Leyre Parchin, Naser Ojaroudi See, Chan H. Abd-Alhameed, Raed A. Falcone, Francisco Huynen, Isabelle Denidni, Tayeb A. Limiti, Ernesto |
author_facet | Alibakhshikenari, Mohammad Virdee, Bal S. Althuwayb, Ayman A. Azpilicueta, Leyre Parchin, Naser Ojaroudi See, Chan H. Abd-Alhameed, Raed A. Falcone, Francisco Huynen, Isabelle Denidni, Tayeb A. Limiti, Ernesto |
author_sort | Alibakhshikenari, Mohammad |
collection | PubMed |
description | 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 0.335λ(0) × 0.137λ(0) × 0.003λ(0), where λ(0) 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 |S(11)|≤ − 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 | Online Article Text |
id | pubmed-8018970 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-80189702021-04-07 Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board Alibakhshikenari, Mohammad Virdee, Bal S. Althuwayb, Ayman A. Azpilicueta, Leyre Parchin, Naser Ojaroudi See, Chan H. Abd-Alhameed, Raed A. Falcone, Francisco Huynen, Isabelle Denidni, Tayeb A. Limiti, Ernesto Sci Rep Article 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 0.335λ(0) × 0.137λ(0) × 0.003λ(0), where λ(0) 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 |S(11)|≤ − 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. Nature Publishing Group UK 2021-04-02 /pmc/articles/PMC8018970/ /pubmed/33811233 http://dx.doi.org/10.1038/s41598-021-86973-x Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Alibakhshikenari, Mohammad Virdee, Bal S. Althuwayb, Ayman A. Azpilicueta, Leyre Parchin, Naser Ojaroudi See, Chan H. Abd-Alhameed, Raed A. Falcone, Francisco Huynen, Isabelle Denidni, Tayeb A. Limiti, Ernesto Bandwidth and gain enhancement of composite right left handed metamaterial transmission line planar antenna employing a non foster impedance matching circuit board |
title | 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_short | 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 |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8018970/ https://www.ncbi.nlm.nih.gov/pubmed/33811233 http://dx.doi.org/10.1038/s41598-021-86973-x |
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