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基于Wheeler变换模型,提出了一种分析多层介质微波特征参数的方法——Wheeler’s Conforming Mapping扩展变换法,并利用该方法得到了微波特征参数与各层介质参数之间的表达式,在此基础上分析了微带电极的微波特性参数.与准静态有限元法(QS-FEM)相比,Wheeler’s Conforming Mapping扩展变换法不仅计算准确而且具有更高的计算效率.将该方法应用于聚合物电光调制器的特性研究,对传统模型进行改进,通过添加补偿层来调整微波等效折射率和特征阻抗,改善微波与光波有效折射率的失配度,在理论上实现了聚合物电光调制器的速率和阻抗的同时匹配.
Based on the Wheeler transform model, a method of analyzing the characteristic parameters of microwaves in multiple media is proposed, that is the Wheeler’s Conforming Mapping extended transform method. The expressions of the microwave characteristic parameters and the parameters of each layer are obtained by this method. Based on this, The microwave characteristic parameters of the microstrip electrode were analyzed.Compared with the quasi-static finite element method (QS-FEM), Wheeler’s Conforming Mapping extended transform method not only calculated accurately but also had higher computational efficiency.The method was applied to polymer electro-optic The characteristics of the modulator are studied, the traditional model is improved, the equivalent refractive index and the characteristic impedance of the microwave are adjusted by adding the compensation layer, the mismatch between the microwave and the effective refractive index of the optical wave is improved, and in theory, the polymer electro-optic modulator Simultaneous matching of rate and impedance.