S-Band Full-Metal Circularly Polarized Cavity-Backed Slot Antenna with Wide Bandwidth and Wide Beamwidth

Chen, RS; Zhu, L; Wong, SW; Lin, JY; Li, Y; Zhang, L; He, Y

S-Band Full-Metal Circularly Polarized Cavity-Backed Slot Antenna with Wide Bandwidth and Wide Beamwidth

Chen, RS Zhu, L Wong, SW Lin, JY Li, Y Zhang, L He, Y

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Publisher:: Institute of Electrical and Electronics Engineers (IEEE)
Publication Type:: Journal Article
Citation:: IEEE Transactions on Antennas and Propagation, 2021, 69, (9), pp. 5963-5968
Issue Date:: 2021-09-01

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Field	Value	Language
dc.contributor.author	Chen, RS
dc.contributor.author	Zhu, L
dc.contributor.author	Wong, SW
dc.contributor.author	Lin, JY
dc.contributor.author	Li, Y
dc.contributor.author	Zhang, L
dc.contributor.author	He, Y
dc.date.accessioned	2022-05-25T12:36:14Z
dc.date.available	2022-05-25T12:36:14Z
dc.date.issued	2021-09-01
dc.identifier.citation	IEEE Transactions on Antennas and Propagation, 2021, 69, (9), pp. 5963-5968
dc.identifier.issn	0018-926X
dc.identifier.issn	1558-2221
dc.identifier.uri	http://hdl.handle.net/10453/157696
dc.description.abstract	In this communication, an S -band wide-bandwidth and wide-beamwidth full-metal circularly polarized (CP) cavity-backed slot antenna is proposed. A pair of triangular prisms placed at the corners of the cavity is introduced to produce TE101 and TE011 modes with orthogonal electric fields. These two modes are used to achieve the CP radiation and radiate the energy through a single-circular slot. By simultaneously varying the prisms' size and slot radius, the axial ratio (AR) bandwidth (ARBW) improves. The ARBW is further improved by replacing the circular slot with an elliptical slot. As a result, the ARBW increases from 1.0% to 10.3% without complicating the antenna structure and without enlarging the antenna size. Besides, the antenna still operates at two degenerate modes to introduce stable radiation gain and pattern. In addition, the proposed CP slot antenna features a wide ARBW. The final measurement shows that the proposed CP antenna can achieve a 9.5% bandwidth, a stable gain of 7.65 dBic ± 0.15 dBic, and higher than 140° ARBWs in a wide frequency range. The peak total radiation efficiency and aperture efficiency are about 97% and 91%, respectively.
dc.language	en
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation.ispartof	IEEE Transactions on Antennas and Propagation
dc.relation.isbasedon	10.1109/TAP.2021.3061116
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.title	S-Band Full-Metal Circularly Polarized Cavity-Backed Slot Antenna with Wide Bandwidth and Wide Beamwidth
dc.type	Journal Article
utslib.citation.volume	69
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	1005 Communications Technologies
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-05-25T12:35:45Z
pubs.issue	9
pubs.publication-status	Published
pubs.volume	69
utslib.citation.issue	9

Abstract:

In this communication, an S -band wide-bandwidth and wide-beamwidth full-metal circularly polarized (CP) cavity-backed slot antenna is proposed. A pair of triangular prisms placed at the corners of the cavity is introduced to produce TE101 and TE011 modes with orthogonal electric fields. These two modes are used to achieve the CP radiation and radiate the energy through a single-circular slot. By simultaneously varying the prisms' size and slot radius, the axial ratio (AR) bandwidth (ARBW) improves. The ARBW is further improved by replacing the circular slot with an elliptical slot. As a result, the ARBW increases from 1.0% to 10.3% without complicating the antenna structure and without enlarging the antenna size. Besides, the antenna still operates at two degenerate modes to introduce stable radiation gain and pattern. In addition, the proposed CP slot antenna features a wide ARBW. The final measurement shows that the proposed CP antenna can achieve a 9.5% bandwidth, a stable gain of 7.65 dBic ± 0.15 dBic, and higher than 140° ARBWs in a wide frequency range. The peak total radiation efficiency and aperture efficiency are about 97% and 91%, respectively.

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http://hdl.handle.net/10453/157696