{"title":"Compact High-Performance Balanced Wideband BPF With a Notch Band and Multiple Transmission Zeros","authors":"Shipeng Zhao;Zhongbao Wang;Hongmei Liu;Mingming Gao;Shaojun Fang","doi":"10.1109/LMWT.2024.3389944","DOIUrl":null,"url":null,"abstract":"In this letter, a novel compact high-performance balanced wideband bandpass filter with a notch band and multiple transmission zeros (TZs) based on double-sided parallel-strip line (DSPSL) structure is proposed. Compared with the half-wavelength microstrip lines, an intrinsic excellent common-mode suppression (CMS) can be realized with a small circuit size in the DSPSL structure. The wideband filtering responses are first constructed by using a short stub-loaded multimode resonator. The shorted coupled lines are utilized to introduce extra TZs on account of the transversal signal interference technique. The asymmetric three-line coupled structures are employed to create a notch band around 3.0 GHz to avoid inference signals. One filter prototype is designed, manufactured, and measured to validate the framework principle.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE microwave and wireless technology letters","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10506750/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"0","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this letter, a novel compact high-performance balanced wideband bandpass filter with a notch band and multiple transmission zeros (TZs) based on double-sided parallel-strip line (DSPSL) structure is proposed. Compared with the half-wavelength microstrip lines, an intrinsic excellent common-mode suppression (CMS) can be realized with a small circuit size in the DSPSL structure. The wideband filtering responses are first constructed by using a short stub-loaded multimode resonator. The shorted coupled lines are utilized to introduce extra TZs on account of the transversal signal interference technique. The asymmetric three-line coupled structures are employed to create a notch band around 3.0 GHz to avoid inference signals. One filter prototype is designed, manufactured, and measured to validate the framework principle.