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2009-09-11

Improving the Beam Efficiency of an Offset Parabolic Reflector Antenna for Spaceborne Radiometric Applications

By Dhaval A. Pujara, Shashi Sharma, and Soumyabrata B. Chakrabarty
Progress In Electromagnetics Research C, Vol. 10, 143-150, 2009
doi:10.2528/PIERC09080103

Abstract

This paper presents a novel technique to improve the cross-polarization and the beam efficiency of an offset parabolic reflector antenna used for space borne radiometric applications. A special multi-mode primary feed (tri-mode conjugate matched feed) is used to illuminate the offset parabolic reflector antenna. The simulated data on the radiation characteristics of the offset parabolic reflector antenna with a matched feed has been compared with that of a conventional Potter horn. It is observed that the tri-mode feed suppress the unwanted high cross-polarization of an offset reflector antenna and improves the beam efficiency.

Citation


Dhaval A. Pujara, Shashi Sharma, and Soumyabrata B. Chakrabarty, "Improving the Beam Efficiency of an Offset Parabolic Reflector Antenna for Spaceborne Radiometric Applications," Progress In Electromagnetics Research C, Vol. 10, 143-150, 2009.
doi:10.2528/PIERC09080103
http://jpier.org/PIERC/pier.php?paper=09080103

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