中文摘要：

利用基于有限元法的COMSOL软件仿真研究了在微波波段下二维点缺陷光子晶体缺陷模的特性。主要讨论了在TM模式下,点缺陷对透射系数的影响以及等离子体密度对二维点缺陷等离子体光子晶体透射系数的影响。重点研究了缺陷模与等离子体密度之间的关系,以及光子晶体的层数对缺陷模特性的影响。研究结果对微波段的多通道滤波器、波分复用器的设计和制作提供了理论参考。

英文摘要：

A two-dimensional triangular lattice photonic crystal resonant-cavity of alumina ceramic rods in air was study. The plasma elements is integrated into the cavity structure. The COMSOL Multiphysics 5. 1 software which is based on the finite element method was used to investigate the transmission characteristics of the defect mode of this photonic crystal. The relations between the electron density of plasma, photonic crystal cycle number and transmission spectrum of the defect mode was analyzed. The research results of this paper provided the theory foundation for designing and fabricating Multiple-Channeled Filters.