Title :
Performance of a reflector antenna incorporating a filtering Cassegrain mirror
Author :
Langley, Richard J. ; Langsford, P.A. ; Parker, Edward A.
Author_Institution :
University of Kent at Canterbury, Electronics Laboratories, Canterbury, UK
Abstract :
Radiation patterns have been measured at 20.0, 22.0 and 25.2 GHz for a parabolic reflector illuminated from the prime focus by a linearly polarised feed radiating through a sub-reflector built from a stack of dielectric filled waveguides. The influence of the intervening guides on the radiation patterns is discussed.
Keywords :
antenna radiation patterns; reflector antennas; 20.0 GHz; 22.0 GHz; 25.2 GHz; dielectric filled waveguides; filtering Cassegrain mirror; linearly polarised feed; parabolic reflector; radiation patterns; reflector antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780124
