Novel design of tri-band bandpass filter based on fractal-shaped geometry of a complementary single split ring resonator

被引：19
|
作者：
Xu He-xiu [1 ]
Wang Guang-ming [1 ]
Peng Qing [2 ]
Liang Jian-gang [1 ]
机构：
[1] Air Force Engn Univ, Missile Inst, Sanyuan 713800, Peoples R China
[2] Nanchang Univ, Sch Foreign Language, Nanchang 330031, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTRONICS | 2011年 / 98卷 / 05期
基金：
中国国家自然科学基金;
关键词：
fractal; composite right/left-handed transmission line; complementary single split ring resonator; tri-band; bandpass filter; selectivity; ANTENNA;
D O I：
10.1080/00207217.2010.520156
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 novel electrically small composite right/left-handed transmission line (CRLH TL) cell based on the Minkowski-shaped geometry of a complementary single split ring resonator is proposed and analysed by the S parameters extraction method. EM simulation results have confirmed the roughly tri-band response of the proposed CRLH TL cell attributed to the fractal multiband nature. A tri-band bandpass filter (BPF) centred at 1.1, 2 and 2.74 GHz with minimum insertion loss 0.4, 1.1 and 1.45 dB was synthesised and fabricated by employing an additional two Hilbert-shaped quarter-wave open-circuit stubs which provided transmission zeros located between passbands to obtain high selectivity. This simple design concept was verified by measurement as well as simulation results.
引用
收藏
页码：647 / 654
页数：8
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