Differential-to-Common-Mode Noise Conversion Suppression on Right-Angle-Bent Differential Transmission Lines Using 3D-Printed Dielectric Materials

Ook Chung, Hogeun Yoo, Suhyoun Song, Jaehoon Lee

Research output: Contribution to journalArticlepeer-review

Abstract

A method using 3D-printed dielectric materials is proposed to suppress differential-to-common-mode noise conversion in right-angle-bent differential transmission lines. The permittivity of the 3D-printed dielectric material decreases the phase velocity of the shorter inner line of the differential transmission lines. Decreasing the phase velocity of the inner line enables the transmission line phase difference to approach 180°, suppressing differential-to-common-mode noise conversion. Simulation shows that increasing the length of the dielectric material causes a decrease in the phase velocity of the transmission line, suppressing differential-to-common-mode noise. The measured results agree with the simulation, indicating suppression in Scd21. The eye height of the eye diagram improved by 19.63%, improving the system signal integrity.

Original languageEnglish
Article number1130129
JournalInternational Journal of RF and Microwave Computer-Aided Engineering
Volume2023
DOIs
Publication statusPublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 Ook Chung et al.

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering

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