Circularly Polarized Microstrip/Elliptical Dielectric Ring Resonator Antenna for Millimeter-Wave Applications

Author

Perron, Alexandre ; Denidni, Tayeb A. ; Sebak, Abdel Razik

Author_Institution

Inst. Nat. de la Rech. Sci. (INRS), Montreal, QC, Canada

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

783

Lastpage

786

Abstract

A new single-element circularly polarized antenna for millimeter-wave applications is presented in this letter. A simple hybrid microstrip/elliptical dielectric ring resonator configuration is used to achieve a relatively high antenna gain. A reversed T-shaped coupling slot generates the circular polarization. The ring-shaped dielectric resonator is used to increase the gain and fine-tune the axial ratio (AR) bandwidth. Measurements show that an impedance bandwidth of 12% and a considerably wide axial ratio bandwidth (10%) are possible. The measured gain is maintained over 9 dB for a large portion of the operational bandwidth.

Keywords

dielectric resonator antennas; electric impedance; electromagnetic coupling; electromagnetic wave polarisation; microstrip antennas; millimetre wave antennas; slot antennas; axial ratio bandwidth; high antenna gain; hybrid microstrip/elliptical dielectric ring resonator antenna; impedance bandwidth; millimeter-wave application; reversed T-shaped coupling slot; single-element circularly polarized antenna; Antenna measurements; Antenna radiation patterns; Bandwidth; Dielectric measurements; Dielectric resonator antennas; Gain; Gain measurement; Impedance measurement; Microstrip antennas; Microstrip resonators; Optical ring resonators; Polarization; Circular polarization; dielectric resonator antennas; microstrip antennas; millimeter-wave antennas;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2064750

Filename

5545345