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Dual-Band Low-Profile Capacitively Coupled Beam-Steerable Square-Loop Antenna

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

IEEE Transactions on Antennas and Propagation, Volume: 62, Issue: 3, Pages: 1204 - 1211

Swansea University Author: Amit Mehta Orcid Logo

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DOI (Published version): 10.1109/TAP.2013.2294866

Abstract

In this paper, a dual-band low-profile switched beam square-loop antenna (SLA) fed by capacitively coupled feeding mechanism is presented. Two square loops are excited by four rectangular feeding patches which are fed with vertical probes. The capacitively coupled feeding arrangement introduces capa...

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Published in: IEEE Transactions on Antennas and Propagation
ISSN: 0018-926X 1558-2221
Published: 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa19286
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last_indexed 2019-09-18T19:20:54Z
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spelling 2019-09-18T15:58:25.2836540 v2 19286 2014-11-14 Dual-Band Low-Profile Capacitively Coupled Beam-Steerable Square-Loop Antenna 8a1e5679707cf437cbfd17b72514b8a5 0000-0001-8073-2436 Amit Mehta Amit Mehta true false 2014-11-14 EEEG In this paper, a dual-band low-profile switched beam square-loop antenna (SLA) fed by capacitively coupled feeding mechanism is presented. Two square loops are excited by four rectangular feeding patches which are fed with vertical probes. The capacitively coupled feeding arrangement introduces capacitance into the antenna input impedance and cancels the high inductance due to close proximity of ground plane and feeding probes. This feeding technique enables the antenna to be matched to 50 Ω feedline and helps in the realization of low-profile SLA. The antenna has a height of 3.04 mm; i.e., λ0 /26 for the operating frequency of 3.8 GHz. The dual-band capacitively coupled square-loop antenna (DBCCSLA) is developed for covering 3.8- and 4.7-GHz frequency bands, and each band possesses an impedance bandwidth of 120 MHz. In both frequency bands, when any of the four ports is excited, keeping other ports open circuited, the antenna generates a tilted beam directed away from the excited port, having a maximum directivity of 9.3 dBi. By exciting ports one at a time, the antenna can steer its tilted beam in four different quadrants to scan the entire space in front of the antenna. Journal Article IEEE Transactions on Antennas and Propagation 62 3 1204 1211 0018-926X 1558-2221 31 3 2014 2014-03-31 10.1109/TAP.2013.2294866 The PI made a substantial contribution to the conception and design, led the work and helped to draft / to redraft the output for important intellectual content. COLLEGE NANME Electronic and Electrical Engineering COLLEGE CODE EEEG Swansea University 2019-09-18T15:58:25.2836540 2014-11-14T19:53:58.0012065 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Arpan Pal 1 Amit Mehta 0000-0001-8073-2436 2 Dariush Mirshekar-Syahkal 3 Prafulla Deo 4 Hisamatsu Nakano 5 0019286-21122017094652.pdf 19286.pdf 2017-12-21T09:46:52.6630000 Output 1090337 application/pdf Accepted Manuscript true 2016-10-12T00:00:00.0000000 false eng
title Dual-Band Low-Profile Capacitively Coupled Beam-Steerable Square-Loop Antenna
spellingShingle Dual-Band Low-Profile Capacitively Coupled Beam-Steerable Square-Loop Antenna
Amit Mehta
title_short Dual-Band Low-Profile Capacitively Coupled Beam-Steerable Square-Loop Antenna
title_full Dual-Band Low-Profile Capacitively Coupled Beam-Steerable Square-Loop Antenna
title_fullStr Dual-Band Low-Profile Capacitively Coupled Beam-Steerable Square-Loop Antenna
title_full_unstemmed Dual-Band Low-Profile Capacitively Coupled Beam-Steerable Square-Loop Antenna
title_sort Dual-Band Low-Profile Capacitively Coupled Beam-Steerable Square-Loop Antenna
author_id_str_mv 8a1e5679707cf437cbfd17b72514b8a5
author_id_fullname_str_mv 8a1e5679707cf437cbfd17b72514b8a5_***_Amit Mehta
author Amit Mehta
author2 Arpan Pal
Amit Mehta
Dariush Mirshekar-Syahkal
Prafulla Deo
Hisamatsu Nakano
format Journal article
container_title IEEE Transactions on Antennas and Propagation
container_volume 62
container_issue 3
container_start_page 1204
publishDate 2014
institution Swansea University
issn 0018-926X
1558-2221
doi_str_mv 10.1109/TAP.2013.2294866
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
document_store_str 1
active_str 0
description In this paper, a dual-band low-profile switched beam square-loop antenna (SLA) fed by capacitively coupled feeding mechanism is presented. Two square loops are excited by four rectangular feeding patches which are fed with vertical probes. The capacitively coupled feeding arrangement introduces capacitance into the antenna input impedance and cancels the high inductance due to close proximity of ground plane and feeding probes. This feeding technique enables the antenna to be matched to 50 Ω feedline and helps in the realization of low-profile SLA. The antenna has a height of 3.04 mm; i.e., λ0 /26 for the operating frequency of 3.8 GHz. The dual-band capacitively coupled square-loop antenna (DBCCSLA) is developed for covering 3.8- and 4.7-GHz frequency bands, and each band possesses an impedance bandwidth of 120 MHz. In both frequency bands, when any of the four ports is excited, keeping other ports open circuited, the antenna generates a tilted beam directed away from the excited port, having a maximum directivity of 9.3 dBi. By exciting ports one at a time, the antenna can steer its tilted beam in four different quadrants to scan the entire space in front of the antenna.
published_date 2014-03-31T03:22:36Z
_version_ 1763750714014695424
score 11.013507

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