Open AccessWideband common noise suppression filter based on coupled microstrip lines and edge‐coupled coplanar waveguides
Author(s) -
Oh Sangyeol,
Jeong Jichai,
Lee Jaehoon
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2015.3186
Subject(s) - microstrip , wideband , filter (signal processing) , coplanar waveguide , common mode signal , acoustics , noise (video) , electronic engineering , signal (programming language) , telecommunications , physics , materials science , electrical engineering , computer science , engineering , microwave , analog signal , digital signal processing , artificial intelligence , image (mathematics) , programming language
A common noise suppression filter in a differential pair using the coupled microstrip line (CML) to edge‐coupled coplanar waveguide (ECCPW) transition is proposed. The filter consists of CMLs, ECCPWs, and shorting via holes that connect the CMLs and ECCPWs, and provides wideband common noise signal suppression using an even‐mode impedance mismatching technique between the CMLs and ECCPWs and wideband differential signal propagation for high‐speed circuit systems. A bandgap effect is realised in even mode, based on the CML to ECCPW transition without a multilayer. This method was verified using the three‐dimensional full‐wave high‐frequency structure simulator and experimental measurements.