DESIGN APPROACHES FOR SATELLITE ANTENNAS.
Final rept. on Task 1,
GENERAL ELECTRIC CO SYRACUSE N Y
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This report is concerned with antennas for active earth satellite communication relays. Both earthsatellite and satellite-satellite communication links, as well as both instantaneous and delayed retransmission, are considered. The objective of this report is not to describe specific antennas rather it is to provide analytical procedures, mathematical formulas, and data for establishing the antenna specifications for specific applications and for estimating the abilities of various antennas to meet the specifications. A major part of the report is devoted to describing in some detail the many system considerations, such as system functions, satellite-earth geometry, antenna pattern coverage, and environment, from which the antenna requirements are derived. A second major part deals with basic antenna parameters that are involved in selecting, evaluating, or developing satellite antennas. Data and curves show effects of trade-offs between electrical characteristics or between electrical and physical characteristics. Some antennas being developed for current satellites are described and some areas needing further research are pointed out. Author