各向异性基底鳍线的理论分析

Theoretical Analysis of Fin Line with Anisotropic Substrate

本文首次从双折射晶体的基本性质出发对各向异性基底鳍线波导进行了严格的理论分析。在谱域坐标系中确立了寻常波（ｏ）和非常波（ｅ）的波矢及电场偏振特性与晶体基片主轴取向的一般关系、标量波动方程和场解。以Ｚ切和Ｙ切单轴晶体为例给出了场结构和矩阵的解析表达式。

The theoretical analysis of fin line with anisotropic substrate is researched rigorously for the first time.In the spectral domain,we determined the general dependences of wave vector, polarization properties and scalar wave eqaations on the major axis in the birefringent plates,and carried out the field solutions and G martices of the fin line with Z-cut and Y-cut crystal substrates for examples.