COMPACT LOW-PASS FILTERS USING NOVEL Φ-SHAPE DEFECTED GROUND STRUCTURE

被引:5
|
作者
La, Dong-sheng [1 ]
Lu, Ying-hua [1 ]
Zhang, Jin-ling [1 ]
机构
[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
基金
中国国家自然科学基金;
关键词
microstrip low-pass filter; Phi-shape; defected ground structure; H shape open stubs;
D O I
10.1002/mop.25968
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 Phi-shape defected ground structure (DGS) is proposed in this article. Low-pass filters are designed using the Phi-shape DGS with H shape open stubs line. Single, two-cascaded and three-cascaded U-shape DGS low-pass filters are designed, simulated, fabricated, and measured. The resonant characteristic of the two-cascaded Phi-shape DGS low-pass filter shows its advantages of compact size, high selectivity, low insertion loss, and excellent passband performance. The frequency response of the three-cascaded Phi-shape DGS low-pass filter presents the advantages of compact size, high selectivity, low insertion loss, better passband performance, and high outband suppression. The measured results show a good agreement with the simulated results. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1456-1459, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25968
引用
收藏
页码:1456 / 1459
页数:5
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