{"title":"A new Defected ground Structure with bandstop filter characteristics","authors":"S. Kumar Parui, T. Moyra, Santanu Das","doi":"10.1109/IWAT.2009.4906882","DOIUrl":null,"url":null,"abstract":"In this paper, a new asymmetric type Defected ground Structure (DGS) is investigated. The proposed DGS unit comprising of three numbers of square shaped slots separated from each other by same distance connect a rectangular slot by thin meander slots underneath a microstrip line. In its frequency characteristics, a finite attenuation zero is observed near to its attenuation pole frequency. The investigated unit is modeled by a Causer Π-network consisting of a series resonant and a shunt resonant circuit. For a given dimension of the DGS, the equivalent LC parameters are extracted. The investigated DGS exhibits a sharp and deep bandstop filtering characteristics. The size of the DGS is very compact as the overall cutout area is 0.3 λg X 0.18 λg","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 IEEE International Workshop on Antenna Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWAT.2009.4906882","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, a new asymmetric type Defected ground Structure (DGS) is investigated. The proposed DGS unit comprising of three numbers of square shaped slots separated from each other by same distance connect a rectangular slot by thin meander slots underneath a microstrip line. In its frequency characteristics, a finite attenuation zero is observed near to its attenuation pole frequency. The investigated unit is modeled by a Causer Π-network consisting of a series resonant and a shunt resonant circuit. For a given dimension of the DGS, the equivalent LC parameters are extracted. The investigated DGS exhibits a sharp and deep bandstop filtering characteristics. The size of the DGS is very compact as the overall cutout area is 0.3 λg X 0.18 λg
本文研究了一种新型的非对称型缺陷地基结构。所提出的DGS单元由三个数的正方形槽组成，它们以相同的距离彼此分开，通过微带线下面的细弯曲槽连接一个矩形槽。在其频率特性中，在其衰减极点频率附近观察到一个有限衰减零。所研究的单元由一个串联谐振电路和一个并联谐振电路组成的肇因器Π-network建模。对于给定的DGS尺寸，提取等效的LC参数。所研究的DGS具有锐利的深带阻滤波特性。DGS的尺寸非常紧凑，整体切割面积为0.3 λg X 0.18 λg
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