Title :
A novel compact circularly polarized horn antenna
Author :
Yangzhen Huang ; Junping Geng ; Ronghong Jin ; Xianling Liang ; Xudong Bai ; Xiaowei Zhu ; Changhong Zhang
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
A novel circularly polarized horn antenna with wide bandwidth and compact size is presented. The antenna is composed of an ellipse-aperture horn antenna, circular-to-square transition and novel circularly polarizer. The polarizer consists of five-step septum in a square waveguide, coaxial-waveguide converter and reflecting back-cavity. The antenna achieves an impedance bandwidth (S11<;-10dB) of 22.1% and a 3-dB AR (Axial Ratio) bandwidth of 18.3%, with the 3dB-AR beam width of about 138°, and the antenna gain is over 10.5dBi in the operation band.
Keywords :
antenna radiation patterns; coaxial waveguides; horn antennas; back-cavity; circular-to-square transition; compact circularly polarized horn antenna; ellipse-aperture horn antenna; impedance bandwidth; wide bandwidth; Antenna arrays; Bandwidth; Gain; Horn antennas; Impedance;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904353
