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Journal : Proceeding Applied Business and Engineering Conference

Perancangan Filter EMI dengan Menempatkan Shield Diantara Komponen Filter Fauzan Ridha Hakiki; Noptin Harpawi S.T,M.T
ABEC Indonesia Vol. 9 (2021): 9th Applied Business and Engineering Conference
Publisher : Politeknik Caltex Riau

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Abstract

Mutual coupling between EMI filter components is a major concern when designing EMI filters for EMI attenuation in the high frequency range. To reduce mutual coupling and increase the damping conductivity of EMI, shields can be placed between the filter components. This study presents the modeling and measurement of an EMI filter with a shield copper placed between the filter components. 3D electromagnetic field modeling software CST MWS is used to model filters over a wide frequency range. Modeling is done with different inductor positions on a double-sided PCB. The modeling results show that the shield that is installed in the mixed inductor position is the most effective in reducing the S21 value. Shield can reduce radiated emission well in the frequency range 200 kHz - 4.5 MHz and 40 MHz - 60.8 MHz with a maximum attenuation value of 13.38 dB.