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根据铁氧体耦合波理论推导出圆极化移相器对任意极化电磁波的传输矩阵 ,在此基础上研究了椭圆极化波、线极化波、圆极化波在移相器内的传输特性。数值仿真表明用基于线极化分量的差相移检测方法测量非标准圆极化波的测量结果不仅与激励状态有关 ,还与选定的线极化方向有关。利用本文的结果可以对圆极化移相器测试系统进行误差分析 ,对于提高测量精度有一定指导意义。
According to the ferrite coupled wave theory, the transfer matrix of a circularly polarized phase shifter for any polarized electromagnetic wave is deduced. Based on this, the elliptical polarized wave, linear polarized wave and circularly polarized wave in the phase shifter Transmission characteristics. The numerical simulation shows that the measurement of non-standard circularly polarized waves by the differential phase shift detection method based on linear polarization component is not only related to the excitation state but also to the selected linear polarization direction. The results of this paper can be circular polarization phase shifter test system error analysis, to improve the measurement accuracy of a certain significance.