MAGNETIC FIELD SHIELDING UNIT AND MULTI-FUNCTIONAL COMPLEX MODULE INCLUDING SAME

WIPO Patent Application WO/2017/090977

A1

A magnetic field shielding unit according to one embodiment of the present invention comprises: a first sheet having a first magnetic field shielding layer formed of fragments of an Fe-based alloy to enhance an antenna characteristic for wireless charging in order to enhance flexibility and reduce an eddy current; and a second sheet having a second magnetic field shielding layer formed of fragments of ferrite to enhance an antenna characteristic for short range communication in order to enhance the flexibility of the shielding unit. According to the present invention, the shielding unit is complexly configured to enhance all of the characteristics of different types of antennas operating in different frequency bands so that the shielding unit can significantly enhance the transmission/reception distance and efficiency of a signal and can be implemented to be very slim; the flexibility of the shielding unit is enhanced, which makes it possible to prevent additional micro-cracks of a magnetic material and fragmentation thereof, thus preventing a magnetic permeability decrease in the operating frequency band of an antenna in advance; and the shielding unit can adhere firmly to an object having a step so that it is possible to solve a problem of separation of the shielding unit.

JANG KIL JAE (KR)
LEE DONG HOON (KR)

PCT/KR2016/013545

June 01, 2017

November 23, 2016

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AMOSENSE CO LTD (KR)

H05K9/00; H01F1/147; H01F1/153; H01F1/34; H01F27/36; H01F38/14; H01Q1/22; H01Q1/52; H02J7/02

KR20150050541A	2015-05-08
JP2007295557A	2007-11-08
KR20140065364A	2014-05-29
JPH10229007A	1998-08-25
JP2008021991A	2008-01-31

ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)

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