Asymptotic and full wave simulation models for compensated compact range design and analysis

Abstract:

Compensated compact ranges (CCR) can be considered a standard for real-time and high accuracy measurements for spacecraft antenna and payload testing. A compact range is an indoor antenna test facility which consists mainly of a large antenna reflector (single, dual, or even multiple reflector arrangements are possible) which is illuminated by an appropriate feed system and reflected via the reflector(s) into a test zone area, the so-called quiet zone (QZ). This test zone is located close to the reflector in order to utilize the radiated near-field distribution characteristic. The interesting fact is that this near-field zone shows a similar behavior in a limited area as it would be at the classical far-field distance. Since the reflector size is finite the reflector edges produce diffracted field contributions which are undesirable at the quiet zone. In order to predict the performance of the quiet zone numerical simulations are …

Año de publicación:

2013

Keywords:

Fuente:

google