{"title":"A compact tri-band bandpass filter based on grounded tri-mode stepped-impedance stub-loaded resonator","authors":"A. Rusakov, N. Janković, V. Crnojević-Bengin","doi":"10.1109/TELSKS.2013.6704933","DOIUrl":null,"url":null,"abstract":"In this work, a stepped-impedance stub-loaded resonator which exhibits tri-mode behaviour is presented. The proposed resonator is analyzed in detail and used to design a compact tri-band bandpass filter which operates at 1.8/3.5/5.2 GHz. The fabricated filter exhibits good selectivity, good transmission and return-loss characteristics, and a compact size of only 0.21λ<sub>g</sub> × 0.11λ<sub>g</sub>, where λ<sub>g</sub> denotes the guided wavelength on the given substrate at the central frequency of the first passband.","PeriodicalId":144044,"journal":{"name":"2013 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/TELSKS.2013.6704933","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
In this work, a stepped-impedance stub-loaded resonator which exhibits tri-mode behaviour is presented. The proposed resonator is analyzed in detail and used to design a compact tri-band bandpass filter which operates at 1.8/3.5/5.2 GHz. The fabricated filter exhibits good selectivity, good transmission and return-loss characteristics, and a compact size of only 0.21λg × 0.11λg, where λg denotes the guided wavelength on the given substrate at the central frequency of the first passband.
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