Compact CPW-Fed Dielectric Resonator Antenna With Dual Polarization

Author

Gao, Yang ; Feng, Zhenghe ; Zhang, Li

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing, China

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

544

Lastpage

547

Abstract

A compact dual-polarized dielectric resonator antenna (DRA) fed by a coplanar waveguide (CPW) is presented. By adopting the even and odd modes of a CPW structure, two orthogonal polarizations with good isolation can be excited in the rectangular DRA by a single feeding aperture. The measured 10-dB impedance bandwidths of the two polarizations are 260 (7%) and 440 MHz (11.6%), respectively. Over the operating bandwidth, the measured isolation between two ports is better than 25 dB. A prototype was fabricated and tested. Good agreement between the measured and simulated results is obtained.

Keywords

antenna feeds; antenna radiation patterns; coplanar waveguides; dielectric resonator antennas; waveguide antennas; CPW structure; CPW-fed dielectric resonator antenna; bandwidth 260 MHz; bandwidth 440 MHz; compact dual-polarized dielectric resonator antenna; coplanar waveguide; impedance bandwidths; orthogonal polarizations; rectangular DRA; single feeding aperture; Antenna measurements; Antenna radiation patterns; Coplanar waveguides; Dielectric resonator antennas; Dielectrics; Feeds; Transmission line measurements; Compact; coplanar waveguide (CPW)-fed; dielectric resonator antenna (DRA); dual polarization;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2154355

Filename

5766701