Title :
Design of a novel corrugated matched feed for an offset parabolic reflector antenna
Author :
Pujara, D.A. ; Sharma, S.B. ; Chakrabarty, S.B. ; Dey, Ranajit ; Singh, V.K.
Author_Institution :
Inst. of Technol., Nirma Univ., Ahmedabad, India
Abstract :
The basic objective of this paper is to apply the concept of matched feed (conjugate field matching) in a cylindrical corrugated structure and to present the design of a novel corrugated matched feed. The designed corrugated matched feed is then used as a primary feed to illuminate the offset parabolic reflector antenna and the secondary radiation pattern has been estimated. The simulated results are compared with the conventional corrugated horn fed offset parabolic reflector. In addition, the cross-pol suppression BW of the proposed corrugated matched feed has been evaluated and the results are summarized.
Keywords :
antenna radiation patterns; reflector antenna feeds; conjugate field matching; corrugated matched feed design; cylindrical corrugated structure; offset parabolic reflector antenna; secondary radiation pattern; Antenna feeds; Antenna radiation patterns; Apertures; Microwave antennas; Microwave technology; Pattern matching; Polarization; Radiometers; Reflector antennas; Space technology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
978-1-4244-3647-7
DOI :
10.1109/APS.2009.5172248
