Title :
Dielectric-ring-loaded waveguide feed
Author :
Kumar, Ajit ; Hockham, G.A.
Author_Institution :
Queen Mary College, University of London, Department of Electrical & Electronic Engineering, London, UK
Abstract :
A dual-mode waveguide loaded with a dielectric ring has been optimised to give symmetrical field patterns in the E- and H-planes and very low crosspolarisation. The v.s.w.r. and phase patterns are also described. The device satisfies the requirements of a feed for deep reflectors.
Keywords :
antenna feeders; dielectric-loaded waveguides; reflector antennas; VSWR; deep reflectors; dielectric ring loaded waveguide feed; dual mode waveguide; low crosspolarisation; phase patterns; reflector antenna; symmetrical field patterns;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770316
