Title :
Dielectric loaded horn feed arrays for reflections in shaped beam applications
Author :
Bird, T.S. ; Hay, S.G.
Author_Institution :
CSIRO, Epping, NSW, Australia
Abstract :
With satellite applications in mind, the authors have analyzed an array of dielectric loaded horns. They outline some of the methods used and present preliminary results, including a shaped beam for an AUSSAT satellite. Reflection and mutual coupling, dielectric loss, and radiation are considered. The horn analysis software was used to design a shaped beam to cover New Zealand from the AUSSAT geostationary positions of 156 degrees E and 160 degrees E. An optimized transit beam at 12.5 GHz, obtained with a 1.5-m offset parabolic reflector and a seven-element feed array, is shown.<>
Keywords :
antenna radiation patterns; dielectric-loaded antennas; reflector antennas; satellite antennas; waveguide antennas; 1.5 m; 12.5 GHz; AUSSAT satellite; dielectric loaded horns; dielectric loss; horn feed arrays; mutual coupling; offset parabolic reflector; radiation pattern; reflection; seven-element feed array; shaped beam applications; Antenna arrays; Antenna feeds; Apertures; Attenuation; Dielectric losses; Loaded antennas; Magnetic fields; Mutual coupling; Optical reflection; Satellite antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.134849
