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

Volume

51

Issue

5

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

1024

Lastpage

1029

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;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2003.811460

Filename

1208508