Title :
Wideband TE21 mode tracking corrugated horn
Author :
Du, Biao ; Yung, Edward K N ; Chen, Ru-Shan ; Zhang, Wen-jing ; Yang, Ke-Zhong
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
Abstract :
A wideband TE21 mode tracking corrugated horn, for either a linearly or a circularly polarised signal is presented. A suppressor with curve profile is introduced to restrain the excitation of unwanted higher order modes. By using the suppressor and employing ring-loaded slots in the entire horn, the cross-polarisation peak level of the horn can be reduced by >9.5 dB. The experimental results of return loss, and sum and difference patterns validate that the feed has satisfactory wideband communication and tracking characteristics
Keywords :
antenna feeds; antenna radiation patterns; electromagnetic wave polarisation; horn antennas; losses; 3.625 to 6.425 GHz; C-band operation; TE21 mode tracking; circularly polarised signal; cross-polarisation peak level reduction; curve profile suppressor; difference patterns; feed system; linearly polarised signal; return loss; ring-loaded slots; sum patterns; wideband communication characteristics; wideband corrugated horn; wideband tracking characteristics; Broadband antennas; Communication networks; Feeds; Frequency; Polarization; Satellite antennas; Satellite communication; Telemetry; Tellurium; Wideband;
Conference_Titel :
Microwave Conference, 2000 Asia-Pacific
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6435-X
DOI :
10.1109/APMC.2000.926117
