Title :
Performance comparison of a matched feed horn with a potter feed horn for an offset parabolic reflector
Author :
Sharma, S.B. ; Pujara, Dhaval ; Chakrabarty, S.B. ; Singh, V.K.
Author_Institution :
Antenna Syst. Area, Space Applic. Centre, Ahmedabad
Abstract :
The present paper deals with the comparison of matched feed performance with that of the conventional potter horn when used with an offset parabolic reflector. The effect of TE21 mode amplitude on the cross polarization has been studied in order to ascertain the suitable TE21 modal amplitude. Followed this, the behavior of change of TE21 modal amplitude with offset angle (thetas0) has been investigated. The effect of cross-polarization variation as a function of (F/D) ratio has been studied for both the matched feed and the potter horn. Finally, the beam squinting phenomenon in case of circular polarization has been studied for the matched feed and the results were compared with that of the potter horn.
Keywords :
beam steering; electromagnetic wave polarisation; horn antennas; offset reflector antennas; reflector antenna feeds; beam squinting phenomenon; cross-polarization variation; matched feed horn; offset parabolic reflector; potter feed horn; Antenna feeds; Horn antennas; Isolation technology; Pattern matching; Polarization; Radiation detectors; Reflector antennas; Remote sensing; Satellite antennas; Space technology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619156
