A reconfigurable dielectric resonator antenna for polarization diversity applications

Author

Dhar, Sayantan ; Sankaralingam, S. ; Gupta, Bhaskar ; Poddar, Dipak Ranjan ; Ghatak, Rowdra

Author_Institution

Dept. of Electron. & Commun. Eng., Heritage Inst. of Technol., Kolkata, India

fYear

2014

Firstpage

1

Lastpage

4

Abstract

A circularly polarized rectangular dielectric resonator antenna is presented. Circular polarization is obtained by introducing a cross slot to generate two near orthogonal degenerate modes having similar amplitudes and 900 phase difference. Four pin diodes are placed across the slots to switch between two polarization states namely, Right Hand Circular Polarization (RHCP) and Left Hand Circular Polarization (LHCP). The antenna yields a measured impedance bandwidth of 26.3% in case of LHCP and 28.2% in case of RHCP. The antenna radiates with a gain of 4.21 dB exhibiting an axial ratio bandwidth of radiate with an acceptable gain over the entire band.

Keywords

dielectric resonator antennas; electromagnetic wave polarisation; LHCP; RHCP; circularly polarized rectangular dielectric resonator antenna; gain 4.21 dB; impedance bandwidth; left hand circular polarization; near orthogonal degenerate modes; polarization diversity applications; right hand circular polarization; Antenna measurements; Bandwidth; Dielectric resonator antennas; Dielectrics; PIN photodiodes; Polarization; Switches; Dielectric Resonator Antenna; aperture coupling; polarization diversity;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (MMS), 2014 14th Mediterranean

Print_ISBN

978-1-4799-7390-3

Type

conf

DOI

10.1109/MMS.2014.7088783

Filename

7088783