Single-feed ultra-wideband circularly polarized antenna with enhanced front-to-back ratio

Zhang, Long, Gao, Steven, Luo, Qi, Young, Paul R., Li, Qingxia, Geng, You-Lin, Abd-Alhameed, Raed A. (2015) Single-feed ultra-wideband circularly polarized antenna with enhanced front-to-back ratio. IEEE Transactions on Antennas and Propagation, PP (99). p. 1. ISSN 0018-926X. (doi:10.1109/TAP.2015.2501844) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:53538)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL: http://dx.doi.org/10.1109/TAP.2015.2501844

Abstract

This communication presents a single-feed ultra-wideband circularly polarized (CP) antenna with high front-to-back ratio (FBR). The antenna is composed of two orthogonally placed elliptical dipoles printed on both sides of a substrate. To realize high front-to-back ratio, a novel composite cavity is also proposed and integrated with the presented crossed dipoles, which effectively reduces the back-lobe of the crossed dipoles. Simulation results are in good agreement with measured results which demonstrate an impedance bandwidth from 0.9 to 2.95GHz (106.5%) and a 3-dB axial ratio bandwidth from 1 to 2.87GHz (96.6%). The measured FBR is about 30dB across the whole GNSS band. Compared with other reported single-feed wideband CP antennas, the antenna has advantages such as a wider CP bandwidth and lower back-lobe radiation.

Item Type:	Article
DOI/Identification number:	10.1109/TAP.2015.2501844
Uncontrolled keywords:	Crossed dipoles; back-lobe reduction; circular polarization; single-feed antennas; wideband antenna; Antenna measurements; Bandwidth; Cavity resonators; Dipole antennas; Ultra wideband antennas
Subjects:	T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK5101 Telecommunications
Divisions:	Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User:	Qi Luo
Date Deposited:	21 Dec 2015 14:44 UTC
Last Modified:	05 Nov 2024 10:40 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/53538 (The current URI for this page, for reference purposes)

University of Kent Author Information

Zhang, Long.

Creator's ORCID:
CReDIT Contributor Roles:

Gao, Steven.

Creator's ORCID:	https://orcid.org/0000-0002-7402-9223
CReDIT Contributor Roles:

Luo, Qi.

Creator's ORCID:
CReDIT Contributor Roles:

Young, Paul R..

Creator's ORCID:	https://orcid.org/0000-0002-3707-2441
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