A Novel Coupled-Defected Ground Structure with Enhanced Coupling-Coefficient and Its Application in Filter Design
A Novel Coupled-Defected Ground Structure with Enhanced Coupling-Coefficient and Its Application in Filter Design
复制标题
一种新型增强耦合系数耦合缺陷接地结构及其在滤波器设计中的应用
DOI：
--
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Zhiyuan Chen
中科院分区：
文献类型：
--
作者：
Sihao Chen;Lin Li;Zhiyuan Chen
提出了一种新型耦合缺陷地结构（C-DGS），在相邻缺陷地结构单元之间插入电感。与传统的C-DGS结构相比，本文提出的C-DGS具有更大的耦合系数，从而具有更宽的阻带。此外，由于耦合系数随插入电感电感的变化而变化，因此可以灵活地调整阻带而无需修改。在此基础上，构建了级联C-DGS低通滤波器（LPF）。通过低通滤波器设计的演示，实验验证了所提出的结构。
A novel coupled-defected ground structure (C-DGS) with inductors inserted between the adjacent defected ground structure (DGS) cells is presented in this paper. In comparison to conventional C-DGS structure, the proposed C-DGS exhibits a larger coupling-coefficient, resulting in a wider stop-band. Moreover, the stopband can be adjusted flexibly without modification since the coupling- coefficient varies with the change of the inductance of the inserted inductor. Based on this new C-DGS, a low-pass filter (LPF) using cascaded C-DGS is constructed. The proposed structure is experimentally verified through the demonstration of a low-pass filter design.