Miniaturized microstrip lowpass filter with wide stopband using double equilateral U-shaped defected ground structure

被引：131
|
作者：
Ting, Sio-Weng [1 ]
Tam, Kam-Weng [1 ]
Martins, R. P. [1 ]
机构：
[1] Univ Macau, Dept Elect & Elect Engn, Macao, Peoples R China
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2006年 / 16卷 / 05期
关键词：
attenuation pole; defected ground structure (DGS); size reduction; U-shaped; wide stopband;
D O I：
10.1109/LMWC.2006.873592
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 compact double equilateral U-shaped defected ground structure (DGS) unit is proposed. In contrast to a single finite attenuation pole characteristic offered by the conventional dumbbell DGS, the proposed DGS unit provides dual finite attenuation poles that can be independently controlled by the DGS lengths. A 2.4-GHz microstrip lowpass filter using five cascaded double U-shaped DGS units is designed and compared with conventional DGS lowpass filters. This lowpass filter achieves a wide stopband with overall 30-dB attenuation up-to 10 GHz and more than 42% size diminution.
引用
收藏
页码：240 / 242
页数：3
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