A COMPACT ULTRA-WIDEBAND BAND-PASS FILTER WITH DEFECTED GROUND STRUCTURE

被引:5
|
作者
Chen, Peng [1 ]
Wei, Feng [1 ]
Shi, Xiaowei [1 ]
Huang, Qiulin [1 ]
机构
[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Peoples R China
关键词
ultra-wideband; band-pass filter; defected ground structure; multiple-mode resonator; DESIGN;
D O I
10.1002/mop.24234
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 article, a compact ultra-wideband (UWB) band-pass filter (BPF) with improved upper-stopband is presented. In this design, a novel multiple-made resonator (MMR) with two symmetrical loading stubs and three dumbbell-shaped defected ground structures (DGS) on the back of the filter improve the harmonic-suppression characteristic of conventional BPF. Combining these two structures, a new UWB BPF is fabricated and measured. Measured results show that the proposed BPF has wide bandwidth from 3.0 to 10.7 GHz and the insertion loss of the BPF is less than 1.0 dB in this bond. A wide stop-band bandwidth with 20 dB attenuation from 12 GHz lip to 20 GHz is achieved. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 979-981 2009: Published online in Wiley InterScience DOI 10.1002/mop.24234
引用
收藏
页码:979 / 981
页数:3
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