A coupled-defected ground structure lowpass filter using inductive coupling for improved attenuation

被引：12

作者：

Jung, S. ^{[1
]}

Lim, Y. -K. ^{[1
]}

Lee, H. -Y. ^{[1
]}

机构：

[1] Ajou Univ, Dept Elect Engn, Suwon 443749, South Korea

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2008年 / 50卷 / 06期

关键词：

C-DGS; DGS; filter; LPF; PBG;

D O I：

10.1002/mop.23419

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 coitpled-dfected ground structure (C-DGS) with closely located DGS cells is proposed for the application of high-performance lowpass filters (LPFs). The closely located DGS cells create the coupling of ground currents between adjacent DGS cells, and the coupling effect greatly improves the stopband characteristics because of an additional attenuation pole without structural modification. A LPF that uses the C-DGS has an attenuation slope ( of 110.8 dB/GHz and a -20-dB rejection band that ranges from 3.8 to 15.6 GHZ. The C-DGS improves the DGS circuit performance and extends the scope of DGS applications. (c) 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1541-1543, 2008:

引用

页码：1541 / 1543

页数：3

共 6 条

[1] A design of the low-pass filter using the novel microstrip defected ground structure [J].