A NEW CALCULATION METHOD FOR THE CHARACTERISTIC IMPEDANCE OF TRANSMISSION LINES WITH MODIFIED GROUND STRUCTURES OR PERTURBATION

被引：12

作者：

Lim, J. ^{[2
]}

Lee, J. ^{[2
]}

Han, S-M ^{[2
]}

Ahn, D. ^{[2
]}

Jeong, Y. ^{[1
]}

机构：

[1] Chonbuk Natl Univ, Div Elect & Informat Engn, Jeonju 561756, Chonbuk, South Korea

[2] Soonchunhyang Univ, Dept Elect & Commun Engn, Asan 336745, Chungnam, South Korea

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2010年 / 106卷

关键词：

BAND BANDPASS FILTER; DESIGN;

D O I：

10.2528/PIER10052602

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a new calculating method for the characteristic impedance (Z(c)) of transmission lines with perturbation and periodic modified groud structure (MGS), such as defected groud structure (DGS), photonic bandgap (PBG), and substrate integrated artificial dielectric (SIAD), is discussed. The proposed method is based on simple transmission line theories and proper related equations. The previous method to find Z(c) of transmission lines with MGS or perturbation produces the fluctuating Z(c) value depending on frequency, while the proposed method results in a constant value without frequency-dependence. as examples serveral miscrostrip lines with DGS, PBG, and SIAD structure are simulated and measured, and their Z(c) values are calculated from S-parameters by the previous and proposed methods. It is shown that the Z(c) obtained by the proposed method is much more reliable than that calculated by the previous method for all examples.

引用

页码：147 / 162

页数：16

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