线框馈电抛物反射面高功率电磁脉冲辐射天线
High power pulse radiation antenna with wire frame TEM horn feedback paraboloid
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摘要: 研制了一种由高功率宽带模式转换结构、导电线框TEM喇叭馈电结构及抛物反射面构成的天线,用其辐射高功率亚纳秒电磁脉冲。时域测试表明,在半宽为700ps、峰值电压为200kV脉冲激励下,天线的主瓣宽度约为±3.8°,辐射效率约为37%。Abstract: An antenna was developed to radiate high power, sub-nanosecond EM pulse, which consists of a high power wideband mode convertor, a wire frame TEM horn feedback set and a parabolic reflector. The radiation E field pattern is about ±3.8°and radiation efficiency is 37% when the antenna is execited by a pulse of 700ps duration and 200kV peak voltage. Compared with those antennas with face-to-face TEM horns or co-planar TEM horns, this kind of antenna has the best radiating property.
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Key words:
- antenna /
- pulse radiation /
- high power
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