DGS resonator with two transmission zeros and its application to lowpass filter design

被引：26

作者：

Chen, Q. ^{[1
]}

Xu, J. ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China

来源：

ELECTRONICS LETTERS | 2010年 / 46卷 / 21期

关键词：

DEFECTED GROUND STRUCTURE; LOW-PASS FILTER; STOPBAND;

D O I：

10.1049/el.2010.2251

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 defected ground structure (DGS) with two transmission zeros and a sharp cutoff frequency response is proposed. Both the two transmission zeros generated by the new DGS are lower than the one generated by a dumbbell-shaped DGS etched the same square area dimensions. On the basis of the proposed DGS, a lowpass filter has been designed, fabricated and measured. The filter with 3 dB cutoff frequency at 4 GHz exhibits a very sharp cutoff frequency response and an ultra wide stopband with rejection better than 25 dB from 4.2 to 23 GHz. Measured results show good agreement with simulated ones.

引用

页码：1447 / 1448

页数：2

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