Simple and accurate model for microstrip structures with slotted ground plane

被引:20
作者
Caloz, C [1 ]
Okabe, H
Iwai, T
Itoh, T
机构
[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA
[2] Hitachi Ltd, Cent Res Lab, Tokyo 1858601, Japan
[3] Fujitsu Labs Ltd, Atsugi, Kanagawa 2430197, Japan
关键词
defected ground planes; microstrip and slot lines; modelling;
D O I
10.1109/LMWC.2003.822564
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
A simple and accurate circuit model for microstrip cou filtering structures with slotted ground plane is presented. The unit cell model consists of a series inductance and shunt capacitance for the microstrip line, an ideal transmission line characterized by its impedance and electrical length for the slot, and an ideal transformer to model coupling to the slot. The coupling mechanism to the slots resonances and subsequent emergence of transmission gaps is explained for different positions of the microstrip line. Excellent agreement with measurement is demonstrated over the broad bandwidth of dc to 20 GHz.
引用
收藏
页码:127 / 129
页数:3
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