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http://dx.doi.org/10.7471/ikeee.2019.23.2.474

Analysis of Improvement Method of Isolation Between Digital Noise and the Mobile Handset Antenna Title  

Kim, Joonchul (Dept. of Information Systems Engineering, Sungshin University)
Publication Information
Journal of IKEEE / v.23, no.2, 2019 , pp. 474-478 More about this Journal
Abstract
In this paper, we analyze the degradation of receiving sensitivity due to the coupling between digital noise and mobile handset antenna using characteristic mode. First, we analyze the coupling mechanism between the antenna and digital noise, and analyze the role of the decoupling capacitor of the ground signal line, which is one of the ways to improve the antenna receiving sensitivity degradation due to camera noise. For the analysis, the digital signal line and the ground line of the FPCB of the camera module are modeled as a loop type feeder that excites the characteristic mode of the PCB ground, and improved model which has a ground line with a capacitor are analyzed.
Keywords
Digital noise; RF noise; sensitivity; ground mode; characteristic mode;
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Times Cited By KSCI : 1  (Citation Analysis)
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