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http://dx.doi.org/10.5515/KJKIEES.2008.19.9.1037

Increment of Antenna Efficiency of the Mobile Phone Antenna by EMI Slot  

Son, Tae-Ho (Dept. of Infocom. Engineering, SoonChunHyang University)
Hong, Min-Gi (Dept. of Infocom. Engineering, SoonChunHyang University)
Lee, Jae-Ho (Antenna R&D LAB, Mobile Communication Division, Samsung Electronics Co. Ltd.)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.19, no.9, 2008 , pp. 1037-1044 More about this Journal
Abstract
Radiation efficiency and antenna gain, in this paper, can be increased by the slot on EMI shield painted on the mobile phone back cover. When the EMI slot which has proper dimension and location is located on the EMI paining area in the phone, the increment of antenna current density due to mutual coupling between the antenna and slot derives increment of antenna efficiency. For the verification of EMI slot effect, we apply the EMI slot to the mobile phone which is operating on GSM/DCS/USPCS/WCDMA quad band, and measure $S_{11}$ and antenna efficiency. It's shown that resonant frequency is not changed and radiation efficiencies to frequency channels by EMI slot are increased from 0.21 % to 8.96 %.
Keywords
EMI Slot; Internal Antenna; Radiation Efficiency; Mutual Coupling;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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