1994•Unpublished venueRequires access
Future communications satellite antennas
Terry M. Smith, H.S. Luh
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Abstract
The conventional design approach to provide a shaped beam antenna pattern has been to illuminate a paraboloid reflector with a multielement feed array. The beam shaping is achieved by selection of the size and placement of the feed elements in the focal plane of the reflector, and the excitation coefficient which drive the elements. Recent developments at Space Systems/Loral have proven the benefits of a shaped reflector antenna design approach, which uses a single feed to illuminate the shaped reflector surface. The following paragraphs will detail the improvements which have been realized, and will discuss implementation of a shaped reflector for the TEMPO communication satellite. At the end of the paper, future improvements will be discussed.