Low-profile dual-polarized patch antenna with HIS reflector for base station application

A coax-feed low-profile dual-polarized patch antenna with high impedance surface (HIS) reflector is presented. The proposed antenna contains two pairs of narrow slots along the diagonals and two pairs of T-shaped slots along the centerlines, which keep the cross-polarization under −38 dB. By introdu...

Full description

Saved in:
Bibliographic Details
Published in:Journal of electromagnetic waves and applications 2014-05, Vol.28 (8), p.956-962
Main Authors: Li, Biao, Hu, Wei, Ren, Jian, Yin, Ying-zeng
Format: Article
Language:English
Subjects:
dual-polarized
high isolation
HIS reflector
low cross-polarization
low profile
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A coax-feed low-profile dual-polarized patch antenna with high impedance surface (HIS) reflector is presented. The proposed antenna contains two pairs of narrow slots along the diagonals and two pairs of T-shaped slots along the centerlines, which keep the cross-polarization under −38 dB. By introducing two short pins, the isolation between the two ports remains more than 36 dB in the whole bandwidth. Low profile and high front-back ratio characteristics are achieved by using the HIS reflector, which is also applied to enhance the performance of two-element array. The height of the antenna is less than λ/8 and the front-back ratio is better than 35 dB. The mutual coupling lower than −31 dB is obtained for the array design with the patches placed 0.8λ apart. The proposed antenna which covers a −10-dB reflection coefficient bandwidth of 2.28-2.75 GHz can be used as the low-profile base station antenna for WiMAX and LTE applications.
ISSN:0920-5071
1569-3937
DOI:10.1080/09205071.2014.898593