Improved equivalent circuits for complementary split-ring resonator-based high-pass filter with C-shaped couplings

被引：17
|
作者：
Liu, J. -C. [1 ]
Shu, D. -S. [1 ]
Zeng, B. -H. [2 ]
Chang, D. -C. [2 ]
机构：
[1] Ching Yun Univ, Dept Elect Engn, Tao Yuan 32097, Taiwan
[2] Yuan Ze Univ, Dept Commun Engn, Tao Yuan, Taiwan
来源：
IET MICROWAVES ANTENNAS & PROPAGATION | 2008年 / 2卷 / 06期
关键词：
D O I：
10.1049/iet-map:20070306
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：
The authors modify the complementary split-ring resonator (CSRR) with dual C-shaped couplings for high-pass filter (HPF) design and propose improved equivalent circuits as a means to analyse the filter. The pi-type circuit of the dual C-shaped coupling in the CSRR-based HPF is presented to have the improved equivalent circuit in contrast to the conventional equivalent circuit. At 3 dB, the cut-off frequency f(c) = 1.74 GHz, the maximum IL is within 0.33 dB up to 8 GHz and the 65.81 dB rejection extends down to 0.53 GHz. Simulation and measurement results including surface current distributions and frequency responses are presented and discussed.
引用
收藏
页码：622 / 626
页数：5
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