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http://dx.doi.org/10.5515/KJKIEES.2016.27.10.945

Reduction of Radio-Frequency Interference in Metal-Framed Smartphone Using EBG Structures  

Park, Hyun Ho (School of Electric & Electronic Engineering, University of Suwon)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.27, no.10, 2016 , pp. 945-948 More about this Journal
Abstract
Recent premium smartphones commonly employ a metal frame and this trend is currently spreading over mid-range smartphones. However, the metal frame becomes a good coupling path of electromagnetic noises emitted from digital components in smartphones and then increases radio-frequency interference(RFI) to RF antennas located at top and bottom sides of smartphones. This paper proposed a metal frame with EBG(Electromagnetic Band Gap) structure to reduce the noise coupling to antenna by suppressing surface wave on the metal frame. By simulation, it is confirmed that the proposed metal frame with $7{\times}6$ mushroom-type EBG array pattern with multi-via can reduce the noise coupling to RF antenna by about 20 dB.
Keywords
Electromagnetic Band Gap; Metal-Framed Smartphone; Radio-Frequency Interference; Surface Wave Suppression;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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