Title :
Multifrequency corrugated feed with groove discontinuity at input
Author :
Sharma, S.B. ; Singh, V.K.
Author_Institution :
Space Applications Centre, Ahmedabad, India
fDate :
8/30/2001 12:00:00 AM
Abstract :
The design of a multifrequency feed system for the microwave radiometer for Ocean Sat-II satellite covering 18.7, 23.8 and 36.5 GHz frequency bands is reported. A groove discontinuity is introduced at the input of the corrugated horn to optimise amplitude taper and the symmetry of primary patterns at the highest frequency without affecting the performance at lower frequency bands. Computed and measured radiation patterns are compared at all the frequencies
Keywords :
antenna radiation patterns; horn antennas; microwave detectors; multifrequency antennas; radiometers; reflector antenna feeds; satellite antennas; 18.7 GHz; 23.8 GHz; 36.5 GHz; Ocean Sat-II satellite; amplitude taper; corrugated horn; groove discontinuity; multifrequency feed system; parabolic reflector antenna; radiation pattern; spaceborne microwave radiometer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010677
