Communication link and target ranges for satellite communications (SATCOM) and space-based sensors (e.g. radars) vary from approximately 400–1000 km for low earth orbits (LEO) to 35,800 km for geosynchronous orbits (GEO). At these long ranges, large antenna gains are required and most legacy systems use high gain reflectors with beams that are either fixed or mechanically steered. However, for some radio frequency (RF) sensor applications, mechanical beam scanning has inherent limitations.
Phased Array Fed Reflector (PAFR) antenna architectures for space-based sensors
01.03.2015
3098164 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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