NDLI: Electromagnetic radiation resulting from strip line structure driven by a feed cable

Content Provider	IEEE Xplore Digital Library
Author	Kayano, Y. Inoue, H.
Copyright Year	2011
Description	Author affiliation: Dept. of Electr. & Electron. Eng., Akita Univ., Akita, Japan (Kayano, Y.; Inoue, H.)
Abstract	Printed circuit boards (PCBs) driven by a connected feed cable are considered to be one of the main sources of the electromagnetic interference (EMI) from electronic devices. Effective methods for predicting and suppressing EMI over a broad band are required. In this paper, we newly focus on identifying the frequency response of EM radiation from a strip line structure driven by a connected feed cable. To provide basic considerations for the realization of methods for predicting the EM radiation from strip line structure driven by a feed cable, the characteristics of the EMI of test model PCB are investigated in this paper experimentally and by numerical modeling. Firstly, frequency responses of common-mode (CM) current and EM radiation from a PCB without the feed cable are discussed by FDTD modeling. It was demonstrated that SL and shield structures without a feed cable are effective in suppressing the EMI. Secondly, CM current on the feed cable attached to the PCB is studied experimentally and compared with FDTD modeling. Due to the additional displacement current path, “SL” structure driven by the feed cable is not effective in suppressing EMI. EMC design guideline commonly suggests that the strip line structure rather than microstrip line structure should be used in PCB structure. The results in this study indicate that “SL” and “Shield” cases yield resonances with high level peaks, due to the feed cable. This study successfully provides a basic model to effectively predict EM radiation from a stripline structure.
Sponsorship	IEEE Electromagn. Compatibility Soc.
Starting Page	161
Ending Page	166
File Size	1442896
Page Count	6
File Format	PDF
ISBN	9781457708121
ISSN	21581118
e-ISBN	9781457708114
DOI	10.1109/ISEMC.2011.6038303
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electromagnetic interference Resonant frequency Feeds Power cables Cable shielding Finite difference methods Time domain analysis
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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