Magnetic field shielding unit and multi-functional complex module including same
US10327365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2016 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Nov 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic field shielding unit according to one embodiment of the present disclosure comprises: a first shielding 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 shielding 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 disclosure, 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 is enhanced, which makes it possible to prevent additional micro-cracks of a magnetic material and fragmentation thereof, thus preventing a magnetic material and fragmentation thereof, thus preventing a magnetic permeability decrease in the operating frequency ba…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.