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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, 64 (1). pp. 355-360. 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:54826)

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. (Contact us about this Publication)
Official URL
http://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 FBR, a novel composite cavity is also proposed and integrated with the presented crossed dipoles, which effectively reduces the backlobe of the crossed dipoles. Simulation results are in good agreement with the measured results that demonstrate an impedance bandwidth from 0.9 to 2.95 GHz (106.5%) and a 3-dB axial ratio (AR) bandwidth from 1 to 2.87 GHz (96.6%). The measured FBR is about 30 dB across the whole global navigation satellite system (GNSS) band. Compared with other reported single-feed wideband CP antennas, the antenna has advantages such as a wider CP bandwidth and lower backlobe radiation

Item Type: Article
DOI/Identification number: 10.1109/TAP.2015.2501844
Uncontrolled keywords: INSPEC: CONTROLLED INDEXING UHF antennas antenna feeds dipole antennas electromagnetic wave polarisation microstrip antennas satellite navigation ultra wideband antennas INSPEC: NON CONTROLLED INDEXING AR bandwidth CP antenna FBR GNSS band Global Navigation Satellite System band axial ratio bandwidth composite cavity crossed dipole backlobe reduction frequency 0.9 GHz to 2.95 GHz front-to-back ratio enhancement impedance bandwidth orthogonally placed elliptical dipole single-feed ultra wideband circularly polarized antenna AUTHOR KEYWORDS Backlobe reduction Crossed dipoles back-lobe reduction circular polarization crossed dipoles single-feed antennas wideband antenna
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Tina Thompson
Date Deposited: 07 Apr 2016 13:38 UTC
Last Modified: 16 Feb 2021 13:34 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/54826 (The current URI for this page, for reference purposes)
Gao, Steven: https://orcid.org/0000-0002-7402-9223
Young, Paul R.: https://orcid.org/0000-0002-3707-2441
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