Title :
High Gain Compact Circularly Polarized Microstrip Antenna
Author :
Nasimuddin ; Esselle, Karu ; Verma, A.K.
Author_Institution :
Dept. of Electron. ICS Div., Macquarie Univ., Sydney, NSW
Abstract :
A new combination of proximity coupled circular microstrip antenna and a square quasi-planar surface mounted short horn is proposed to increase the gain of a compact circularly polarized antenna by 4.2 dB. This antenna structure has gain 10.39 dBi and over 3 dB beam-width ( 52deg) the axial ratio (AR) is 0.11 dB and the 3 dB AR bandwidth is 1.89%. The patch structure has 13% size reduction over normal circular microstrip patch antenna. Total thickness of stricture is only 0.22lambdao.
Keywords :
electromagnetic wave polarisation; horn antennas; microstrip antennas; 3 dB bandwidth; axial ratio; circular microstrip patch antenna; compact circularly polarized microstrip antenna; gain 10.39 dB; proximity coupled circular microstrip antenna; square quasi-planar surface mounted short horn; Bandwidth; Degradation; Dielectric resonator antennas; Feeds; Horn antennas; Microstrip antennas; Patch antennas; Permittivity; Polarization; Surface waves;
Conference_Titel :
TENCON 2005 2005 IEEE Region 10
Conference_Location :
Melbourne, Qld.
Print_ISBN :
0-7803-9311-2
Electronic_ISBN :
0-7803-9312-0
DOI :
10.1109/TENCON.2005.301051
