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Aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement

This paper presents a thorough review of the techniques involved in the enhancement of the efficiency performance of the reflectarray antenna. The effect of the selection of a suitable patch element or a proper feeding mechanism on efficiency improvement is studied in detail. Reflectarray loss quant...

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Main Authors:	Jamaluddin, Mohd Haizal, Che Seman, Fauziahanim, Dahri, Muhammad Hashim, Abbasi, Muhammad Inam, Sallehuddin, Nur Fazreen, Ashyap, Adel Yahya Isa, Kamarudin, Muhammad Ramlee
Format:	Article
Language:	English
Published:	MDPI AG 2020
Online Access:	http://eprints.utem.edu.my/id/eprint/25267/2/ASPECT%20ELECTRONICS-09-01887%20%282%29.PDF http://eprints.utem.edu.my/id/eprint/25267/ https://www.mdpi.com/2079-9292/9/11/1887/htm
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spelling	my.utem.eprints.252672023-05-25T14:51:50Z http://eprints.utem.edu.my/id/eprint/25267/ Aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement Jamaluddin, Mohd Haizal Che Seman, Fauziahanim Dahri, Muhammad Hashim Abbasi, Muhammad Inam Sallehuddin, Nur Fazreen Ashyap, Adel Yahya Isa Kamarudin, Muhammad Ramlee This paper presents a thorough review of the techniques involved in the enhancement of the efficiency performance of the reflectarray antenna. The effect of the selection of a suitable patch element or a proper feeding mechanism on efficiency improvement is studied in detail. Reflectarray loss quantification is examined in relation to the design techniques involved in the efficiency improvement. A low loss patch element with a wide reflection phase range and a properly illuminated reflectarray aperture are supposed to offer high efficiency performance. Additionally, the placement, the orientation and the position of a patch element on the reflectarray surface can also affect its efficiency performance. Mathematical equations were developed to estimate the efficiencies of circular and square aperture reflectarray antennas by considering their feed footprints. Moreover, a step by step practical method of predicting and measuring the total efficiency of a reflectarray antenna is presented. The two selected apertures of the reflectarray consisting of the square patch element configuration are fabricated and measured at a frequency of 26 GHz. Their measured efficiencies have been estimated using the derived equations, and the results were compared and validated using the efficiencies obtained by the conventional gain-directivity relation. MDPI AG 2020-11 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/25267/2/ASPECT%20ELECTRONICS-09-01887%20%282%29.PDF Jamaluddin, Mohd Haizal and Che Seman, Fauziahanim and Dahri, Muhammad Hashim and Abbasi, Muhammad Inam and Sallehuddin, Nur Fazreen and Ashyap, Adel Yahya Isa and Kamarudin, Muhammad Ramlee (2020) Aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement. Electronics, 9 (11). pp. 1-26. ISSN 2079-9292 https://www.mdpi.com/2079-9292/9/11/1887/htm 10.3390/electronics9111887
institution	Universiti Teknikal Malaysia Melaka
building	UTEM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknikal Malaysia Melaka
content_source	UTEM Institutional Repository
url_provider	http://eprints.utem.edu.my/
language	English
description	This paper presents a thorough review of the techniques involved in the enhancement of the efficiency performance of the reflectarray antenna. The effect of the selection of a suitable patch element or a proper feeding mechanism on efficiency improvement is studied in detail. Reflectarray loss quantification is examined in relation to the design techniques involved in the efficiency improvement. A low loss patch element with a wide reflection phase range and a properly illuminated reflectarray aperture are supposed to offer high efficiency performance. Additionally, the placement, the orientation and the position of a patch element on the reflectarray surface can also affect its efficiency performance. Mathematical equations were developed to estimate the efficiencies of circular and square aperture reflectarray antennas by considering their feed footprints. Moreover, a step by step practical method of predicting and measuring the total efficiency of a reflectarray antenna is presented. The two selected apertures of the reflectarray consisting of the square patch element configuration are fabricated and measured at a frequency of 26 GHz. Their measured efficiencies have been estimated using the derived equations, and the results were compared and validated using the efficiencies obtained by the conventional gain-directivity relation.
format	Article
author	Jamaluddin, Mohd Haizal Che Seman, Fauziahanim Dahri, Muhammad Hashim Abbasi, Muhammad Inam Sallehuddin, Nur Fazreen Ashyap, Adel Yahya Isa Kamarudin, Muhammad Ramlee
spellingShingle	Jamaluddin, Mohd Haizal Che Seman, Fauziahanim Dahri, Muhammad Hashim Abbasi, Muhammad Inam Sallehuddin, Nur Fazreen Ashyap, Adel Yahya Isa Kamarudin, Muhammad Ramlee Aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement
author_facet	Jamaluddin, Mohd Haizal Che Seman, Fauziahanim Dahri, Muhammad Hashim Abbasi, Muhammad Inam Sallehuddin, Nur Fazreen Ashyap, Adel Yahya Isa Kamarudin, Muhammad Ramlee
author_sort	Jamaluddin, Mohd Haizal
title	Aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement
title_short	Aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement
title_full	Aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement
title_fullStr	Aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement
title_full_unstemmed	Aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement
title_sort	aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement
publisher	MDPI AG
publishDate	2020
url	http://eprints.utem.edu.my/id/eprint/25267/2/ASPECT%20ELECTRONICS-09-01887%20%282%29.PDF http://eprints.utem.edu.my/id/eprint/25267/ https://www.mdpi.com/2079-9292/9/11/1887/htm
_version_	1768012363698536448
score	13.211869

Aspects of efficiency enhancement in reflectarrays with analytical investigation and accurate measurement

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