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http://dx.doi.org/10.5573/ieek.2013.50.9.201

The Reduction Method for Radiated EMI in USB Power Line of Cable  

Park, Kyoung-Jin (Department of Electronic Engineering, Kangwoon University)
Lee, Dae-Woo (Department of Electronic Engineering, Kangwoon University)
Ko, Yong-Mok (Department of Electronic Engineering, Kangwoon University)
Gang, Eun-Gyun (Department of Electronic Engineering, yuhan collage)
Park, Jong-Hyun (Department of Electronic Engineering, Kangwoon University)
Kim, Keun-Yong (Department of Electronic Engineering, Kangwoon University)
Ra, Keuk-Whan (Department of Electronic Engineering, Kangwoon University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.9, 2013 , pp. 201-208 More about this Journal
Abstract
In this paper, we studied on improvement for radiated EMI of USB power line of cable. it is made by using wireless video access point system for confirming the phenomenon of radiated EMI from cable. then, we make sure that the limit exceed through the initial measurement of radiated EMI limit criteria in comparison to about 3 [dBuV/m]~15 [dBuV/m]. after that we confirmed the resonance in power line of cable through measurement of s-parameters. so, we confirmed the relation radiated EMI and power line of cable resonance and we reduced radiated EMI in power line of cable through a capacitor and low pass-band filter using the technique of power networks management. in conclusion, we suggested how to reduce power line of cable resonance applied for the improved method. and we confirmed that suggested reduction method is suitable through testing radiated EMI. the result of radiated EMI reduction limit criteria 40[dBuV/m]~47[dBuV/m] in comparison to about 3 [dBuV/m]~20 [dBuV/m].
Keywords
USB interface EMI reduction method; PI(Power Integrity);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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