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一、前言随着电波的利用形式不断地复杂化,在天线方面也逐步地引进先进的技术,因此,在增益、方向性、极化波椭圆度等天线辐射特性的测量方面,也要求与之相应的高精确度。通常,天线的测量是在自由空间里,把待测天线与测量用的天线,间隔足够远的距离,将它们相对设置起来进行的。人们把这种测量方法叫做远区场测量。但是,在实际的天线试验场上,存在着地面和周围障碍物引起的电波反射。它给天线测量造成误差。
I. INTRODUCTION As the form of the use of radio waves continues to be complicated, advanced technologies are gradually introduced in terms of antennas. Therefore, measurement of radiation characteristics of antennas, such as gain, directivity and polarization ellipticity, is also required The corresponding high accuracy. In general, the antenna is measured in a free-space space between the antenna under test and the antenna for measurement at a sufficient distance from each other and positioned relative to one another. People call this method of measurement far field measurements. However, in the actual antenna test site, there are radio waves caused by the ground and surrounding obstacles. It gives the antenna measurement error.