关键词: 椭圆极化, 近场测量, 远场方向图, 轴比, 倾角, 增益, 交叉极化

Abstract:

In this paper,starting from practical engineering application,a method of near field measurement for antenna polarization is addressed by combining with the electromagnetic theory.Based on elliptical polarization wave decomposition theory,a method for measuring the character of elliptical polarization antenna using linear polarization probe is proposed.Though the orthogonal test using linear polarization probe we can get the character of circular polarization antenna,such as far field pattern,axis ration,tilt angle and gain tec.also get the cross polarization character of linear polarization antenna.

Key words: elliptical polarization;near field measurement;far field pattern;axis ratio;tilt angle;gain;cross polarization