强激光与粒子束, 2016, 28 (4): 043001, 网络出版: 2016-04-01
一种高功率共面馈电脉冲辐射天线的设计实验
Design and experiments on a kind of high-power coplanar-feed impulse radiating antenna
高功率 共面馈电 超宽带巴伦 抛物反射面 脉冲辐射天线 high power coplanar feed UWB balun paraboloid reflector impulse radiating antenna
摘要
设计了一种高功率共面馈电脉冲辐射天线。该天线馈源采用双组电大尺寸共面极板馈臂,将馈电点置于焦点处,与直径2.1 m的抛物反射面相配合,实现超宽谱短脉冲的有效定向辐射。提出了一种由同轴输入到4端输出的高功率馈电巴伦,解决了高功率情况下同轴线到4馈臂共面馈电问题。对所设计天线进行测试实验,结果表明: 在馈电脉冲宽度为450 ps、峰值电压为142 kV时,辐射因子达到800 kV。
Abstract
A kind of high-power coplanar-feed impulse radiating antenna (IRA) is described in this paper. It is constructed of four electrically large coplanar arms, and a 2.1 m diameter paraboloid reflector. To get higher gain, the point feed was fixed at the reflector focus. To figure out the high power feed problem, a kind of new high power balun was introduced, with conical input to 4 points output. The high-power coplanar-feed IRA was fabricated and the farfield was measured. The results show that: with 450 ps pulse width, 142 kV peak voltage short pulse input, the rE value could reach 800 kV.
石一平, 易超龙, 樊亚军, 朱四桃, 夏文锋, 朱郁丰. 一种高功率共面馈电脉冲辐射天线的设计实验[J]. 强激光与粒子束, 2016, 28(4): 043001. Shi Yiping, Yi Chaolong, Fan Yajun, Zhu Sitao, Xia Wenfeng, Zhu Yufeng. Design and experiments on a kind of high-power coplanar-feed impulse radiating antenna[J]. High Power Laser and Particle Beams, 2016, 28(4): 043001.