Effect of complex permeability on circuit parameters of CPW with magnetic noise suppression sheet

Sho Muroga, Motoshi Tanaka, Takefumi Yoshikawa, Yasushi Endo

Research output: Contribution to journalArticlepeer-review


An effect of complex permeability of noise suppression sheets (NSS) on circuit parameters was investigated by a magnetic circuit analysis using cross-sectional size and material parameters. The series resistance and inductance of the coplanar waveguide (CPW) with a NSS considering the effect of the complex permeability of the NSS were quantitatively estimated. The result indicated that the imaginary and real part of the effective permeability affected the resistance and inductance, respectively. Furthermore, this analysis was applied to an 8-µm-wide CPW with a 0.5-µm-thick Co85Zr3Nb12 film for quantitative estimation of the resistance, the inductance and the characteristic impedance. The estimated parameters were almost similar to the measured values. These results showed that the frequency characteristics of the circuit parameters could be controlled by changing size and material parameters.

Original languageEnglish
Pages (from-to)899-902
Number of pages4
JournalIEICE Transactions on Communications
Issue number9
Publication statusPublished - 2020 Sep 1


  • Electromagnetic compatibility
  • Electromagnetic noise suppressor
  • Ferromagnetic resonance loss
  • Magnetic circuit
  • Magnetic film

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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