摘要
在电磁辐射和散射测量时,为使目标处于平面波照射区,被测目标和天线的距离应满足远场条件。但是在一些电子战设备进行暗室内性能测试时,根据这些设备的工作波长和天线口径,则需要建造很大的微波暗室,事实是在很多情况下是不现实的。为此,详细推导了一种“三元组近场”条件下的幅度控制精确算法,该算法能将辐射式仿真远场测试距离降低约1倍,实现近场效应修正,可以广泛应用于工程实践。
In electromagnetic radiation and scattering applications, the distance between the TUT （ target under test ） and the antenna should meet the far-field requirements, which means the target must be located in the section with plane wave radiation. But when the evaluation of the EW （ electronic war） equipment in anechoic chamber is discussed, a very large chamber must be built according to the working wave-length and the antenna size of the TUT. That is always an impossible task. Therefore, a novel accurate arithmetic on amplitude-controlling under near-field condition is formulated step by step. The arithmetic can achieve the near-field error compensation, reduce the test distance to half in RF radiation simulation, and can be used in engineering applications widely.
出处
《现代雷达》
CSCD
北大核心
2005年第12期64-67,共4页
Modern Radar
关键词
射频仿真
近场修正
三元组
RF simulation
near-field error compensation
three-element-array
