The Use of a Pair of 3D-Printed Near Field Superstructures to Steer an Antenna Beam in Elevation and Azimuth

The paper presents a method to design beam-steering antennas using a pair of 3D printed perforated dielectric structures (PDSs) placed in the near-field region of a base antenna, which has a fixed beam. Detailed designs and quantitative comparison of two beam-steering antenna systems are presented....

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Autores principales:	Touseef Hayat, Muhammad U. Afzal, Foez Ahmed, Shiyu Zhang, Karu Priyathama Esselle, J. Vardaxoglou
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Acrylonitrile butadiene styrene additive manufacturing beam steering meta-steering near field non-homogenous Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/376b7e5fe7934b8f8ba99b96307ac0c5
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spelling	oai:doaj.org-article:376b7e5fe7934b8f8ba99b96307ac0c52021-11-24T00:01:39ZThe Use of a Pair of 3D-Printed Near Field Superstructures to Steer an Antenna Beam in Elevation and Azimuth2169-353610.1109/ACCESS.2021.3126700https://doaj.org/article/376b7e5fe7934b8f8ba99b96307ac0c52021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9610068/https://doaj.org/toc/2169-3536The paper presents a method to design beam-steering antennas using a pair of 3D printed perforated dielectric structures (PDSs) placed in the near-field region of a base antenna, which has a fixed beam. Detailed designs and quantitative comparison of two beam-steering antenna systems are presented. One antenna system has a conical horn antenna and the other uses a resonant-cavity antenna (RCA) as the base antenna. In both cases, the first PDS transforms the phase distribution of the aperture near field and hence tilts the antenna beam to an offset angle. The second PDS, placed above the first, introduces an additional linear progression to the phase of the near field. The two PDSs are rotated independently to steer the beam in both azimuth and elevation. The PDSs have been 3D-printed using acrylonitrile butadiene styrene (ABS) filaments. Each prototype was fabricated in about 16 hours, weighs 300 grams, and costs approximately 5.5 US Dollars. The measured results show that, at the operating frequency of 11 GHz, the RCA-based system has a peak gain of 17.7 dBi compared to the 16.6 dBi gain obtained with the horn-based system. In a fixed E-plane, the variation in the aperture near-field phase of the horn antenna (115°) is much less than that of the RCA (360°). This reduces the efforts required for phase correction and hence led to the former having a larger 3dB measured gain bandwidth of 1.2 GHz compared with the 0.7 GHz bandwidth of the latter, but at the cost of 35.6% increase in the total height of the antenna system.Touseef HayatMuhammad U. AfzalFoez AhmedShiyu ZhangKaru Priyathama EsselleJ. VardaxoglouIEEEarticleAcrylonitrile butadiene styreneadditive manufacturingbeam steeringmeta-steeringnear fieldnon-homogenousElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 153995-154010 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Acrylonitrile butadiene styrene additive manufacturing beam steering meta-steering near field non-homogenous Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Acrylonitrile butadiene styrene additive manufacturing beam steering meta-steering near field non-homogenous Electrical engineering. Electronics. Nuclear engineering TK1-9971 Touseef Hayat Muhammad U. Afzal Foez Ahmed Shiyu Zhang Karu Priyathama Esselle J. Vardaxoglou The Use of a Pair of 3D-Printed Near Field Superstructures to Steer an Antenna Beam in Elevation and Azimuth
description	The paper presents a method to design beam-steering antennas using a pair of 3D printed perforated dielectric structures (PDSs) placed in the near-field region of a base antenna, which has a fixed beam. Detailed designs and quantitative comparison of two beam-steering antenna systems are presented. One antenna system has a conical horn antenna and the other uses a resonant-cavity antenna (RCA) as the base antenna. In both cases, the first PDS transforms the phase distribution of the aperture near field and hence tilts the antenna beam to an offset angle. The second PDS, placed above the first, introduces an additional linear progression to the phase of the near field. The two PDSs are rotated independently to steer the beam in both azimuth and elevation. The PDSs have been 3D-printed using acrylonitrile butadiene styrene (ABS) filaments. Each prototype was fabricated in about 16 hours, weighs 300 grams, and costs approximately 5.5 US Dollars. The measured results show that, at the operating frequency of 11 GHz, the RCA-based system has a peak gain of 17.7 dBi compared to the 16.6 dBi gain obtained with the horn-based system. In a fixed E-plane, the variation in the aperture near-field phase of the horn antenna (115°) is much less than that of the RCA (360°). This reduces the efforts required for phase correction and hence led to the former having a larger 3dB measured gain bandwidth of 1.2 GHz compared with the 0.7 GHz bandwidth of the latter, but at the cost of 35.6% increase in the total height of the antenna system.
format	article
author	Touseef Hayat Muhammad U. Afzal Foez Ahmed Shiyu Zhang Karu Priyathama Esselle J. Vardaxoglou
author_facet	Touseef Hayat Muhammad U. Afzal Foez Ahmed Shiyu Zhang Karu Priyathama Esselle J. Vardaxoglou
author_sort	Touseef Hayat
title	The Use of a Pair of 3D-Printed Near Field Superstructures to Steer an Antenna Beam in Elevation and Azimuth
title_short	The Use of a Pair of 3D-Printed Near Field Superstructures to Steer an Antenna Beam in Elevation and Azimuth
title_full	The Use of a Pair of 3D-Printed Near Field Superstructures to Steer an Antenna Beam in Elevation and Azimuth
title_fullStr	The Use of a Pair of 3D-Printed Near Field Superstructures to Steer an Antenna Beam in Elevation and Azimuth
title_full_unstemmed	The Use of a Pair of 3D-Printed Near Field Superstructures to Steer an Antenna Beam in Elevation and Azimuth
title_sort	use of a pair of 3d-printed near field superstructures to steer an antenna beam in elevation and azimuth
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/376b7e5fe7934b8f8ba99b96307ac0c5
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The Use of a Pair of 3D-Printed Near Field Superstructures to Steer an Antenna Beam in Elevation and Azimuth

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