An Artificial Coupled Line with Common-Mode Rejection and Its Applications

Autor: Chung-Hao Tsai, 蔡仲豪
Rok vydání: 2012
Druh dokumentu: 學位論文 ; thesis
Popis: 100
An artificial coupled-line with broadband even-mode rejection is proposed based on the concept of transmission line metamaterial. It is composed of a pair of coupled lines and a ground plane backed by mushroom structures and called mushroom-backed coupled-line (MBCL). Its equivalent circuit model is established to explain wave propagation property. Based on odd and even mode analyses, the proposed coupled-line behaves like a quasi-TEM transmission line for odd-mode excitation while it possesses a wide stopband for even-mode excitation. Based on the proposed MBCL, a common mode filter and a passive balun are designed with a compact size and broadband operation. Both structures are realized on the LTCC technology. For the common-mode filter with four unit cells, its size is 0.16
Databáze: Networked Digital Library of Theses & Dissertations