Frequency selective surfaces (FSS's) are often used in spaceborne applications of reflector antennas due to their ability to allow multiple feeds to utilize the same reflector dish. The problems inherent in evaluating the FSS separately from the reflector system are discussed. A method of integrating the FSS effects into the reflector system analysis is presented. An example is given for the proposed Advanced Tracking and Delay Relay Satellite System (ATDRSS) singleaccess trihand reflector antenna.
A l a b o r a t o r y hardware-based s a t e l l i t e communication system s i m u l a t o r has been used t o measure t h e e f f e c t s o f t r a n s m i t t e d s i g n a l power changes on t h e performance o f a Ka-band system. Such power changes can be used t o compensate f o r s i g n a l fade due t o r a i n a t t e n u a t i o n . T h i s paper p r e s e n t s and discusses t h e r e s u l t s o f t h e s e measurements.
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