System for testing efficacy of electromagnetic shielding and method
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United States of America Patent
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Oct 30, 2018
Grant Date -
Jan 11, 2018
app pub date -
Aug 24, 2016
filing date -
Jul 7, 2016
priority date (Note) -
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Abstract
A system to test efficacy of electromagnetic shielding includes a radio frequency anechoic housing and a testing device. The testing device includes a signal source, at least one antenna, and a receiver. When one of the antenna is connected to the signal source, the receiver receives a first frequency field. When the antenna and the signal source are in the shielding shell and the shielding shell is in the radio frequency anechoic housing, the receiver receives a second frequency field. Values of the shielding efficacy are obtained according to the first frequency field and the second frequency field. A determination of whether the shielding shell meets requirements is obtained according to the values of the shielding efficacy. A method for testing shielding efficacy is also disclosed.
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