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Ultra-Wideband Dual-Polarized Patch Antenna With Four Capacitively Coupled Feeds

Zhu, Fuguo, Gao, Steven, Ho, Anthony Tung Shuen, Abd-Alhameed, Raed A., See, Chan Hwang, Brown, Tim W.C., Li, Jianzhou, Wei, Gao, Xu, Jiadong (2014) Ultra-Wideband Dual-Polarized Patch Antenna With Four Capacitively Coupled Feeds. IEEE Transactions on Antennas and Propagation, 62 (5). pp. 2440-2449. ISSN 0018-926X. (doi:10.1109/TAP.2014.2308524) (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:41201)

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.2014.2308524

Abstract

A novel dual-polarized patch antenna for ultra-wideband (UWB) applications is presented. The antenna consists of a square patch and four capacitively coupled feeds to enhance the impedance bandwidth. Each feed is formed by a vertical isosceles trapezoidal patch and a horizontal isosceles triangular patch. The four feeds are connected to the microstrip lines that are printed on the bottom layer of the grounded FR4 substrate. Two tapered baluns are utilized to excite the antenna to achieve high isolation between the ports and reduce the cross-polarization levels. In order to increase the antenna gain and reduce the backward radiation, a compact surface mounted cavity is integrated with the antenna. The antenna prototype has achieved an impedance bandwidth of 112% at (|S11 | ? -10 dB) whereas the coupling between the two ports is below -28 dB across the operating frequency range. The measured antenna gain varies from 3.91 to 10.2 dBi for port 1 and from 3.38 to 9.21 dBi for port 2, with a 3-dB gain bandwidth of 107%.

Item Type: Article
DOI/Identification number: 10.1109/TAP.2014.2308524
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Tina Thompson
Date Deposited: 29 May 2014 08:19 UTC
Last Modified: 17 Aug 2022 10:57 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/41201 (The current URI for this page, for reference purposes)
Gao, Steven: https://orcid.org/0000-0002-7402-9223
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