Design of Pseudo-Elliptic Bandpass Filter using Higher-Order Modes of Photonic Crystal Point Defect Cavity for Sub-Terahertz Bands
Design of Pseudo-Elliptic Bandpass Filter using Higher-Order Modes of Photonic Crystal Point Defect Cavity for Sub-Terahertz Bands
复制标题
亚太赫兹频段使用光子晶体点缺陷腔高阶模的伪椭圆带通滤波器设计
DOI：
10.1109/mwsym.2015.7166815
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Trevor M. Benson
中科院分区：
文献类型：
--
作者：
Chun-Ping Chen; Tetsuo Anada; Shigeki Takeda ;Zhewang Ma; Stephen Greedy;Trevor M. Benson
基于耦合矩阵理论，提出并设计了一种新型的二维光子晶体带通谐振滤波器。耦合矩阵的概念为窄带滤波器的直接综合提供了一种精确的方法，并为相位共轭带通滤波器的优化设计提供了结构参数的初步估计。通过微调耦合棒、介质棒和扰动棒的半径等结构参数，利用时域有限差分法研究了其滤波特性。
In this paper, a novel compact 2D photonic crystal bandpass resonant filter is proposed and designed on the basis of coupling matrix theory between the waveguide and point defect resonators with perturbing dielectric posts. The coupling matrix concept offers an accurate method for a direct synthesis of narrow-band filters and provides initial estimate of structure parameters for optimization design of PhC bandpass filters. By fine adjusting the structure parameters such as the radius of the coupling rod, dielectric rod, and perturbing rod, the filter characteristics are studied by using the finite difference time domain method.