Title :
Comparison of G/T between dual-reflector and primary-focus antennas
Author :
James, G.L. ; Thomas, B.MacA.
Author_Institution :
CSIRO, Division of Radiophysics, Epping, Australia
Abstract :
Cassegrain operation of moderate-sized antennas at low frequencies often poses difficulties because of the large feed horn required. Primary-focus operation using a two-hybrid-mode feed horn is shown to give a G/T ratio close to that provided by classical Cassegrain operation using a single-hybrid-mode feed.
Keywords :
antenna theory; reflector antennas; Cassegrain operation; G/T ratio; UHF primary focus antennas; antenna theory; dual reflector antennas; frequency range 1 to 5 GHz; gain/temperature ratio; two hybrid mode feed horn;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800209
