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Journal article 1186 views 162 downloads

$2\times2$ Phased Array Consisting of Square Loop Antennas for High Gain Wide Angle Scanning With Low Grating Lobes

Arpan Pal, Amit Mehta Orcid Logo, Dariush Mirshekar-Syahkal, Hisamatsu Nakano

IEEE Transactions on Antennas and Propagation, Volume: 65, Issue: 2, Pages: 576 - 583

Swansea University Author: Amit Mehta Orcid Logo

Abstract

A 2 × 2 array antenna comprised of conventional hybrid high impedance surface-based reconfigurable square loop antennas (SLAs) as elements is presented. The SLA element has four conducting arms and each arm is fed at the middle by vertical probes, which is connected to a 50 Ω port at the bottom of a...

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Published in: IEEE Transactions on Antennas and Propagation
ISSN: 0018-926X 1558-2221
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa29046
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spelling 2019-09-18T15:39:14.6598996 v2 29046 2016-07-05 $2\times2$ Phased Array Consisting of Square Loop Antennas for High Gain Wide Angle Scanning With Low Grating Lobes 8a1e5679707cf437cbfd17b72514b8a5 0000-0001-8073-2436 Amit Mehta Amit Mehta true false 2016-07-05 EEEG A 2 × 2 array antenna comprised of conventional hybrid high impedance surface-based reconfigurable square loop antennas (SLAs) as elements is presented. The SLA element has four conducting arms and each arm is fed at the middle by vertical probes, which is connected to a 50 Ω port at the bottom of antenna ground plane. Thus, the SLA element has four feeding ports and it is capable of generating five distinct radiation patterns by using a combination of its feeding ports. Depending upon which of its four ports are excited it can provide four high gain off-boresight tilted beams (8.9 dBi at θmax = 36°) in four different quadrants of the space (tilted beam mode). When all the four ports are simultaneously excited with phases of 0°, 0°, 180°, and 180°, it provides an axial beam (6.5 dBi) at boresight (axial beam mode). By combining these two modes the 2 × 2 array of SLAs can provide a scanning range of -60° to +60° in the elevation plane with high-gain beams (14-11.2 dBi). Journal Article IEEE Transactions on Antennas and Propagation 65 2 576 583 0018-926X 1558-2221 phased array antennas, beam steering, beam switched antennas 28 2 2017 2017-02-28 10.1109/TAP.2016.2637858 COLLEGE NANME Electronic and Electrical Engineering COLLEGE CODE EEEG Swansea University 2019-09-18T15:39:14.6598996 2016-07-05T14:51:28.9192701 Arpan Pal 1 Amit Mehta 0000-0001-8073-2436 2 Dariush Mirshekar-Syahkal 3 Hisamatsu Nakano 4 0029046-12102016162855.docx SLA_array_cronfa.docx 2016-10-12T16:28:55.3730000 Output 901839 application/vnd.openxmlformats-officedocument.wordprocessingml.document Author's Original true 2016-10-12T00:00:00.0000000 false
title $2\times2$ Phased Array Consisting of Square Loop Antennas for High Gain Wide Angle Scanning With Low Grating Lobes
spellingShingle $2\times2$ Phased Array Consisting of Square Loop Antennas for High Gain Wide Angle Scanning With Low Grating Lobes
Amit Mehta
title_short $2\times2$ Phased Array Consisting of Square Loop Antennas for High Gain Wide Angle Scanning With Low Grating Lobes
title_full $2\times2$ Phased Array Consisting of Square Loop Antennas for High Gain Wide Angle Scanning With Low Grating Lobes
title_fullStr $2\times2$ Phased Array Consisting of Square Loop Antennas for High Gain Wide Angle Scanning With Low Grating Lobes
title_full_unstemmed $2\times2$ Phased Array Consisting of Square Loop Antennas for High Gain Wide Angle Scanning With Low Grating Lobes
title_sort $2\times2$ Phased Array Consisting of Square Loop Antennas for High Gain Wide Angle Scanning With Low Grating Lobes
author_id_str_mv 8a1e5679707cf437cbfd17b72514b8a5
author_id_fullname_str_mv 8a1e5679707cf437cbfd17b72514b8a5_***_Amit Mehta
author Amit Mehta
author2 Arpan Pal
Amit Mehta
Dariush Mirshekar-Syahkal
Hisamatsu Nakano
format Journal article
container_title IEEE Transactions on Antennas and Propagation
container_volume 65
container_issue 2
container_start_page 576
publishDate 2017
institution Swansea University
issn 0018-926X
1558-2221
doi_str_mv 10.1109/TAP.2016.2637858
document_store_str 1
active_str 0
description A 2 × 2 array antenna comprised of conventional hybrid high impedance surface-based reconfigurable square loop antennas (SLAs) as elements is presented. The SLA element has four conducting arms and each arm is fed at the middle by vertical probes, which is connected to a 50 Ω port at the bottom of antenna ground plane. Thus, the SLA element has four feeding ports and it is capable of generating five distinct radiation patterns by using a combination of its feeding ports. Depending upon which of its four ports are excited it can provide four high gain off-boresight tilted beams (8.9 dBi at θmax = 36°) in four different quadrants of the space (tilted beam mode). When all the four ports are simultaneously excited with phases of 0°, 0°, 180°, and 180°, it provides an axial beam (6.5 dBi) at boresight (axial beam mode). By combining these two modes the 2 × 2 array of SLAs can provide a scanning range of -60° to +60° in the elevation plane with high-gain beams (14-11.2 dBi).
published_date 2017-02-28T03:35:26Z
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score 11.007058