• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.28 no.11
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• pp.916-919
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• 2017

This paper examines electromagnetic leakage path of small shield cans employed in mobile devices such as smart-phones by using numerical simulation and analyzes near-field coupling due to each of the leakage electric and magnetic fields by using IC-stripline method. From the results, it is confirmed that the leakage from the apertures or slots on the top of shield can is dominated by magnetic field, whereas the leakage from the seam on the side of shield can is mostly caused by electric field.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.14 no.8
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• pp.863-870
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• 2003

The digital transmission system entered in a RF region as digital system use IC chips of the speeder edge rate and clock speed nowadays. Optical path really was used in order to obtain the more capacity. In this paper, we described importance of electrical interconnect to get the signal integrity in optical module by simulation and experiment. 12 channel${\times}$2.5 G/ps optical parallel transmitter modules were manufactured by two different method ; access lines with microstrip and stripline type. We have clearly shown that the optical module adopting microstrip type with S$\sub$11/ $\geq$ -10 dB presents distortion but the optical module adopting stripline type with S$\sub$11/ $\leq$ : 15 dB obtains eye opening in 2.5 Gbis optical eye pattern response.