Title :
Circularly polarized array antenna composed of four open-loop elements
Author :
Iitsuka, Y. ; Nakano, Hisamatsu
Author_Institution :
Dept. of Electr. & Electron. Eng., Hosei Univ., Koganei, Japan
Abstract :
A circularly polarized array antenna composed of four open-loop elements is proposed for a CP beam scanning antenna. The array has a low-profile structure; the antenna height above the ground plane is small, 0.1 wavelength at 6 GHz. Analysis reveals that a scan angle range of 40° is obtained. The 3-dB reduction gain bandwidth is 27% (from 5.35 GHz to 7.0 GHz). Within this bandwidth, the axial ratio is less than 2 dB and the VSWR is less than 2.
Keywords :
antenna arrays; antenna radiation patterns; CP beam scanning antenna; circularly polarized array antenna; four open-loop elements; frequency 6 GHz; low-profile structure; Antenna arrays; Antenna radiation patterns; Arrays; Bandwidth; Gain; Spirals;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6710739
