Tri-band circularly polarized annular slot antenna for GPS and CNSS applications

L. Wang; Y. X. Guo; W. X. Sheng

doi:10.1080/09205071.2012.714451

Tri-band circularly polarized annular slot antenna for GPS and CNSS applications

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Overview

15 Scopus Citations

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Author(s)

L. Wang
Y. X. Guo
W. X. Sheng

Detail(s)

Original language	English
Pages (from-to)	1820-1827
Journal / Publication	Journal of Electromagnetic Waves and Applications
Volume	26
Issue number	14-15
Publication status	Published - 2012
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1080/09205071.2012.714451 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84876401094&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(a88b2399-fd4a-4b9c-8f2d-5dac29be0077).html

Abstract

A novel single-feed tri-band circularly polarized (CP) annular slot antenna is presented. The antenna structure is composed of two nonconcentric annular slots that are fed by an Lshaped series step impedance microstrip line configuration. The proposed antenna is designed to operate at the L<sub>1</sub> and L<sub>2</sub> bands of the global positioning system and the operating band of the compass navigation satellite system. Compared to the most of the previously reported tri-band CP antenna structure, the proposed antenna has low profile, compact size, and easy fabrication on the single-layer PCB. The measured results show that the impedance bandwidths are good for all bands. The axial ratio bandwidth and radiation patterns are also measured at the three resonant frequencies. The proposed compact tri-band CP antenna design is suitable for mounting onto the mobile communication devices and portable positioning systems. © 2012 Taylor & Francis.

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