By combining backfire principle and focusing mechanism in a single antenna system the backfire feed Cassegrain antenna makes a sm all aperture antenna having the electrical performance of a large Cassegrain antenna.
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- 背射馈源卡氏天线将背射原理和聚焦原理综合于同一个天线系统之中 ,这就使小口径天线 (与天线波长比 )具有大型卡氏天线的电性能。