低RCS選頻濾波反射面天線技術(shù)
A STEALTHY ANTENNA WITH FREQUENCY SELECTIVE REFLECTOR
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摘要: 利用具有帶阻選頻特性的周期結(jié)構(gòu)表面替代普通金屬反射面構(gòu)成的濾波反射面天線是一項克服天線散射的有效技術(shù)途徑.本文給出了濾波反射面天線輻射特性和RCS的實測結(jié)果;分析討論了此種天線的性能和可行性.Abstract: A Cassegrain antenna with frequency seletctive reflector is introduced, and the measured radiation properties and radar cross-section (RCS) of the antenna are give and discussed. In comparison with ordinary metailic reflector, this antenna can obtain similar radiation pattern and about 15dB of RCS reduction.
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