A new approach to design high directivity, compact omnidirectional CP antenna arrays

Lin, W; Ziolkowski, RW

A new approach to design high directivity, compact omnidirectional CP antenna arrays

Lin, W

Ziolkowski, RW

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Publication Type:: Conference Proceeding
Citation:: 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings, 2019, pp. 2157 - 2158
Issue Date:: 2019-07-01

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Field	Value	Language
dc.contributor.author	Lin, W https://orcid.org/0000-0003-0337-8554	en_US
dc.contributor.author	Ziolkowski, RW https://orcid.org/0000-0003-4256-6902	en_US
dc.date.available	2021-08-12T19:00:36Z
dc.date.issued	2019-07-01	en_US
dc.identifier.citation	2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings, 2019, pp. 2157 - 2158	en_US
dc.identifier.isbn	9781728106922	en_US
dc.identifier.uri	http://hdl.handle.net/10453/138662
dc.description.abstract	© 2019 IEEE. A new approach to design high directivty, compact omnidirectional circularly polarized (OCP) antenna arrays is presented in this paper. An array of collinear electric (E-) and magnetic (M-) radiators is realized by simply cascading copper loops and vertical strips to form an electrically long antenna structure. This array has two identical half sections that is excited in its center. The circumference of each loop and the length of each vertical strip are about a half-wavelength. The configuration facilitates the currents on all of the loop and the strip radiators to achieve the same phase and, hence, the array is a set of in-phase E-and M-radiators. Due to the fact that the phases of the magnetic radiator currents are 90° ahead of the electric ones, the 90° phase difference between the two subsets of radiators required to achieve OCP radiation is realized. An optimized prototype was fabricated and measured. The whole structure is compact and easily fabricated. It covers a 130 MHz bandwidth from 2.34 to 2.47 GHz and produces OCP radiation. The peak measured LHCP realized gain for the four-stage version is 5.1 dBic.	en_US
dc.relation.ispartof	2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings	en_US
dc.relation.isbasedon	10.1109/APUSNCURSINRSM.2019.8889245	en_US
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.title	A new approach to design high directivity, compact omnidirectional CP antenna arrays	en_US
dc.type	Conference Proceeding
utslib.for	100501 Antennas and Propagation	en_US
pubs.embargo.period	Not known	en_US
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
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US

Abstract:

© 2019 IEEE. A new approach to design high directivty, compact omnidirectional circularly polarized (OCP) antenna arrays is presented in this paper. An array of collinear electric (E-) and magnetic (M-) radiators is realized by simply cascading copper loops and vertical strips to form an electrically long antenna structure. This array has two identical half sections that is excited in its center. The circumference of each loop and the length of each vertical strip are about a half-wavelength. The configuration facilitates the currents on all of the loop and the strip radiators to achieve the same phase and, hence, the array is a set of in-phase E-and M-radiators. Due to the fact that the phases of the magnetic radiator currents are 90° ahead of the electric ones, the 90° phase difference between the two subsets of radiators required to achieve OCP radiation is realized. An optimized prototype was fabricated and measured. The whole structure is compact and easily fabricated. It covers a 130 MHz bandwidth from 2.34 to 2.47 GHz and produces OCP radiation. The peak measured LHCP realized gain for the four-stage version is 5.1 dBic.

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http://hdl.handle.net/10453/138662