Title :
Diplexing feed assemblies for application to dual-reflector antennas
Author :
James, Graeme L. ; Clark, Paul R. ; Greene, Kieran J.
Author_Institution :
Telecommun. & Ind. Phys., CSIRO, Epping, NSW, Australia
fDate :
5/1/2003 12:00:00 AM
Abstract :
We investigate possible configurations for dual-band waveguide diplexing assemblies appropriate for use as feed systems for dual-reflector antennas. Specific applications are where the bands are well separated and, individually, have relatively wide bandwidths. Two crucial problems are addressed: the demanding bandwidth requirements of the feed horn and the subsequent means of diplexing the signals. We present results arising from the analysis of candidate systems and discuss a preferred option in detail.
Keywords :
dielectric-loaded antennas; horn antennas; multifrequency antennas; multiplexing equipment; reflector antenna feeds; reflector antennas; bandwidth; coaxial OMJ-diplexer feed assembly; dielectric cone-loaded feed horn; dielectric loaded antennas; dual-band waveguide diplexing assemblies; dual-reflector antennas; feed horn; multifrequency antennas; reflector antenna feeds; signal diplexing; Antenna feeds; Assembly systems; Bandwidth; Dual band; Loaded antennas; Multifrequency antennas; Optical waveguides; Reflector antennas; Waveguide junctions; Waveguide transitions;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2003.811460
