A New Wideband Circularly Polarized Dielectric Resonator Antenna

Khalily, Mohsen; Kamarudin, Muhammad Ramlee; Mokayef, Mastaneh; Danesh, Shadi; Ghahferokhi, Sayed Ehsan Alavi

A New Wideband Circularly Polarized Dielectric Resonator Antenna

Files

14_01_0175_0180.pdf(2.57 MB)

Date

2014-04

Authors

Khalily, Mohsen

Kamarudin, Muhammad Ramlee

Mokayef, Mastaneh

Danesh, Shadi

Ghahferokhi, Sayed Ehsan Alavi

Publisher

Společnost pro radioelektronické inženýrství

Abstract

A wideband and compact circularly polarized (CP) C-shaped dielectric resonator antenna (DRA) is presented. The proposed C-shaped DR is excited by a simple stripe line connected to a coplanar waveguide (CPW) feeding line. The C-shaped DRA is circularly polarized with 19% axial ratio (AR) bandwidth. It is found that the CP bandwidth can be expanded by using a narrow short circuit strip. The final design achieves CP with 50% AR bandwidth. The proposed circularly polarized DRA (CPDRA) with good radiation characteristics offers an impedance bandwidth of 58% between 3.45 and 6.26 GHz for VSWR ≤ 2. The proposed DRA is fabricated and tested. Very good agreement between simulated and measured results is obtained.

Keywords

Dielectric Resonator Antenna (DRA), Circularly Polarized (CP), Axial Ratio (AR) bandwidth, Coplanar Waveguide (CPW)-fed

Citation

Radioengineering. 2014, vol. 23, č. 1, s. 175-180. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2014/14_01_0175_0180.pdf

Document type

Peer-reviewed

Document version

Published version

Language of document

en

Document licence

Creative Commons Attribution 3.0 Unported License
http://creativecommons.org/licenses/by/3.0/