Experimental design of bandstop filters based on unconventional defected ground structures

被引：6

作者：

Annam, Kaushik ^{[1
]}

Khah, Sunil Kumar ^{[2
]}

Dooley, Steven ^{[3
]}

Cerny, Charles ^{[3
]}

Subramanyam, Guru ^{[1
]}

机构：

[1] Univ Dayton, Dept Elect & Comp Engn, 300 Coll Pk, Dayton, OH 45469 USA

[2] Jaypee Univ Informat Technol, Electromagnet Anal Lab, Waknaghat 173234, Solan, India

[3] WPAFB, Air Force Res Lab, Sensors Directorate, Dayton, OH 45432 USA

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2016年 / 58卷 / 12期

关键词：

defected ground structures (DGS); band stop filters; dumbbell U-slot; spiral U-slot;

D O I：

10.1002/mop.30192

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 modified design of band stop filters using unconventional defected ground structures (DGS) is presented. The new proposed structures have conventional dumbbell DGS and spiral DGS integrated with U-slots. These microstrip structures provide high selectivity and Q-factor. By integrating the U-slot to the conventional structures, the overall capacitance and inductance increase which results in shift of resonance frequency from3.434 GHz to2.323 GHz for modified dumbbell and from 1.818 GHz to 1.702 GHz for modified spiral structure. Sharp transition is achieved from pass band to stop band and reduced ripples in the pass band for the new proposed DGS while the DGS sizes remain the same. The proposed designs were fabricated and tested on a dielectric substrate with dielectric permittivity of 10. (c) 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2969-2973, 2016

引用

页码：2969 / 2973

页数：5

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