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Increasing requirements in radio astronomy for wide band observing, highly compact feed systems, and remote telescope operation are stretching the capability of traditional horn antenna and feed system designs. Here we describe the development of some new types of feed system for Australian and overseas radio telescopes designed to meet these requirements. The feeds systems described are 4 to 12.25...
A strategy to optimize dual-reflector antennas for compact Satellite Communications (SATCOM) terminals to meet various user-specified requirements is described. An overview of the method and design methodology is given, and some of the challenges in designing compact antennas as compared to traditional large Earth Station antennas are described.
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