45°功率分割正交模变换器的分析

由于45°功率分割正交模变换器结构的对称性，输出端正交的TE10和TE01模功率分配理论上是等分的。但在HFSS仿真计算时，由于输出端方口径波导简并模的影响，得到的两正交模功率分配却不相等。为了解决仿真中的功率不等分问题，我们提出对输出端方口径进行微扰的方法，并对微扰孔的位置进行了探讨；分析了加工误差对功率等分性能的影响。

Analysis on 45 Degree Power Divider Orthogonal Mode Transducers

Due to the symmetry of the 45°power divider orthogonal mode transaucers structure, the orthogonal mode power dividers of TE10 and TE01 is equal at the output end in theory. However, through the HFSS simulation, the two orthogonal mode power dividers are different because of the influence of the square calibre wave guide＇ s degenerate mode at the output end. In order to solve that issue, a method of disturbing the square calibre wave guide faintly is proposed, and the position of the aperture disturbed is described. It is also analyzed how the processing error influences the capability of power equal dividing.