Title :
A small size circularly polarized patch antenna
Author :
Wei Wang ; Fangfang Fan
Author_Institution :
Sci. & Technol. on Antenna & Microwave Lab., Xidian Univ., Xi´an, China
Abstract :
A small size circularly polarized (CP) patch antenna by the use of parasitic ellipse-shaped shorting strips is presented in this paper. These parasitic shorting strip elements which provide capacitive and inductive loading effects to the patch can reduce the size of antenna. The total area of reduction is more than 61% in comparison with the conventional half-wave patch antenna. The antenna works at 1.268 GHz. It has impedance bandwidth (VSWR≤2) of 2.1%, axial ratio bandwidth (AR≤3 dB) of 0.4% and peak gain of 0.55 dBic at 1.268 GHz.
Keywords :
UHF antennas; microstrip antennas; polarisation; strips; CP patch antenna; antenna size reduction; axial ratio bandwidth; capacitive loading effect; frequency 1.268 GHz; half-wave patch antenna; impedance bandwidth; inductive loading effect; parasitic ellipse-shaped shorting strip; small size circularly polarized patch antenna; Bandwidth; Impedance; Microwave antennas; Patch antennas; Resonant frequency; circularly polarization (CP); patch antenna; small size;
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992486
