Microstrip stepped-impedance hairpin resonator low-pass filter with defected ground structure

被引:14
作者
Cho, JH [1 ]
Lee, JC [1 ]
机构
[1] Kwangwoon Univ, RFIC Res & Educ Ctr, Seoul 139701, South Korea
关键词
stepped impedance hairpin resonator (SIR); low-pass filter; aperture; defected ground structure (DGS);
D O I
10.1002/mop.21364
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
hi this paper, a new microstrip stepped-impedance hairpin resonator (SIR) low-pass filter (LPF) using a defected ground structure (DGS) is proposed. The proposed SIR hairpin low-pass filter using DGS provides a very sharp cutoff frequency response with low insertion loss. Furthermore, the SIR hairpin low-pass filter can provide attenuation poles for the wide-stopband characteristic due to the resonance characteristic of the DGS. Design parameters for the SIR low-pass filter are derived based on stepped-impedance theory and the equivalent-Circuit model for the DGS. The experimental results show excellent agreement with the theoretical simulation results. (C) 2005 Wiley Periodicals, Inc.
引用
收藏
页码:405 / 408
页数:4
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