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{"title":"Microstrip parallel coupled-line bandpass filter with selectivity improvement using U-shaped defected ground structure","authors":"Daniel Piscarreta, Sio-Weng Ting","doi":"10.1002/mop.23236","DOIUrl":null,"url":null,"abstract":"<p>A novel defected ground structure (DGS) feedline element with two transmission zeros and flat passband is proposed. The zeros can be tuned individually by the DGS geometry to improve the low order filter's selectivity. A traditional microstrip parallel coupled-line bandpass filter cascading this new element, not only achieves the selectivity improvement, but also its basic design formulation is retained. A prototype DGS filter was designed and tested to validate its performance. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 911–915, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23236</p>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"50 4","pages":"911-915"},"PeriodicalIF":1.2000,"publicationDate":"2008-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/mop.23236","citationCount":"15","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microwave and Optical Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/mop.23236","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 15
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Abstract
A novel defected ground structure (DGS) feedline element with two transmission zeros and flat passband is proposed. The zeros can be tuned individually by the DGS geometry to improve the low order filter's selectivity. A traditional microstrip parallel coupled-line bandpass filter cascading this new element, not only achieves the selectivity improvement, but also its basic design formulation is retained. A prototype DGS filter was designed and tested to validate its performance. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 911–915, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23236
采用u型缺陷接地结构的微带平行耦合线带通滤波器，提高了滤波器的选择性
提出了一种具有双传输零点和平坦通带的新型缺陷接地结构馈线元件。零可以通过DGS的几何形状单独调谐，以提高低阶滤波器的选择性。将传统的微带并联耦合线带通滤波器级联这种新元件，不仅实现了选择性的提高，而且保留了其基本的设计公式。设计了原型DGS滤波器，并对其性能进行了测试。©2008 Wiley期刊公司微波光电工程学报，2009;在线发表于Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002 / mop.23236
本文章由计算机程序翻译，如有差异，请以英文原文为准。
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