天线罩平板测试中求解透过真值的空间驻波法

Space Standing Wave Method for Real Figure of Transmission Efficiency in Radome Wall Testing

在天线罩平板电性能测试中,对平板在接收和发射喇叭间前后运动时的功率透过系数(T^2)和插入相移(IPD)出现的波动现象进行了分析,并提出了一种通过实测功率透过系数波动求平板透过真值的空间驻波法。采用空间驻波法获得的平板透过系数和插入相移值与平板的理论设计计算结果相符,由此可见,这是一种求解透过真值的切实可行的方法,为天线罩的设计提供了一个依据。

Analysis is made for the variance of the power transmission efficiency ( |T|2) and IPD while the wall moves back and forth between the transmitting and receiving horn in the radome wall testing t and the Space Standing Wave Method (SSWM) determining the real figure of transmission efficiency through the measured power transmission efficiency is presented. Wall transmission efficiency and IPD obtained using SSWM agree well with the wall designing value. It is shown that SSWM is a feasible method for the real figure of transmission, and provides a basis for the radome design.