Differential‐mode bandpass filter on microstrip line with wideband common‐mode suppression. Issue 3 (1st February 2017)

• Record Type: Journal Article
• Authors: Chen, Dong; Zhu, Lei; Bu, Huizheng; Cheng, Chonghu
• Is Part Of: Electronics letters. Volume 53:Issue 3(2017)
• Page Start: 163
• Page End: 165
• Publication Date: 2017-02-01
• Subjects: band‐pass filters -- microstrip lines -- microstrip filters -- resonator filters -- coupled transmission lines; differential‐mode bandpass filter -- wideband common‐mode suppression -- microstrip line topology -- DM BPF -- half‐wavelength uniform impedance resonators -- coupled‐line sections -- open‐circuited stub -- spurious CM response -- wideband CM suppression; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2016.4223
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A novel differential‐mode (DM) bandpass filter (BPF) on microstrip‐line topology with wideband common‐mode (CM) suppression is presented. The DM BPF is composed of a pair of half‐wavelength ( λ /2) uniform impedance resonators and two coupled‐line sections as feeding scheme. By installing an open‐circuited stub in the middle of the coupled‐line section, spurious CM response can be tremendously suppressed over a wide band. Thus, wideband CM suppression is realised in and beyond core DM passband. Finally, a DM BPF is designed and fabricated to support the proposed design concept.