Title :
Simple Ka-band Earth coverage antennas for LEO satellites
Author :
Hay, S.G. ; Bateman, D.G. ; Bird, T.S. ; Cooray, F.R.
Author_Institution :
Cooperative Res. Centre for Satellite Syst., CSIRO Telecommun. & Ind. Phys., Epping, NSW, Australia
Abstract :
Preliminary design of simple antennas to give approximately uniform illumination of the Earth from low-Earth orbit (LEO) satellites in the 20/30 GHz band is outlined. Three designs are compared for a satellite with an altitude of 800-km. As the satellite altitude decreases it becomes increasingly difficult to obtain the desired wide beamwidth using horn antennas and some improvement may be obtained using a small reflector.
Keywords :
dielectric-loaded waveguides; horn antennas; microwave antennas; reflector antennas; satellite antennas; 20 GHz; 30 GHz; 800 km; Ka-band Earth coverage antennas; LEO; LEO satellites; SHF; antenna design; coaxial slot; dielectric-loaded waveguide; horn antennas; low-Earth orbit satellites; reflector; satellite altitude; uniform illumination; wide beamwidth; Artificial satellites; Birds; Coaxial components; Dielectrics; Feeds; Horn antennas; Lighting; Low earth orbit satellites; Reflector antennas; Satellite antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.789236
