{"title":"Design of a Selective Filter-Antenna with Low Insertion Loss and High Suppression Stopband for WiMAX Applications","authors":"Alkhafaji Mk, Sahbudin Rkz, Ismail Ab, Hashim Sj","doi":"10.4172/2090-4886.1000147","DOIUrl":null,"url":null,"abstract":"This paper presents a selective quasi–elliptic bandpass filter-antenna. The presented filter-antenna has a low insertion loss in the passband and relatively high stopband rejection. This structure consists of a quasi–elliptic bandpass filter direct coupled with patch antenna. The bandpass filter consists of four (λ/4) spiral square resonators. It has operates between (3.25–3.6) GHz so it is suitable for WiMAX applications. A CST Microwave Studio Suite software has used to simulate the filter-antenna circuit. The simulated results of the patch antenna and the results of the filter-antenna appears a good matching between the two circuits.","PeriodicalId":91517,"journal":{"name":"International journal of sensor networks and data communications","volume":"5 1","pages":"1-7"},"PeriodicalIF":0.0000,"publicationDate":"2016-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2090-4886.1000147","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International journal of sensor networks and data communications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4172/2090-4886.1000147","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
This paper presents a selective quasi–elliptic bandpass filter-antenna. The presented filter-antenna has a low insertion loss in the passband and relatively high stopband rejection. This structure consists of a quasi–elliptic bandpass filter direct coupled with patch antenna. The bandpass filter consists of four (λ/4) spiral square resonators. It has operates between (3.25–3.6) GHz so it is suitable for WiMAX applications. A CST Microwave Studio Suite software has used to simulate the filter-antenna circuit. The simulated results of the patch antenna and the results of the filter-antenna appears a good matching between the two circuits.
提出了一种选择性准椭圆带通滤波器天线。所提出的滤波器天线具有低的通带插入损耗和较高的阻带抑制。该结构由准椭圆带通滤波器与贴片天线直接耦合组成。带通滤波器由四个(λ/4)螺旋方形谐振器组成。它在(3.25-3.6)GHz之间工作，因此适用于WiMAX应用。利用CST Microwave Studio Suite软件对滤波器天线电路进行了仿真。贴片天线的仿真结果与滤波天线的仿真结果吻合较好。
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