Title:
ELECTROMAGNETIC WAVE SHIELDING FILTER
Document Type and Number:
WIPO Patent Application WO/2023/003447
Kind Code:
A1
Abstract:
In configuring an electromagnetic wave shielding filter, the present invention uses a filter construction method in which a magnetic field transfer method instead of a low pass filter method or band pass filter method is configured to maintain shielding of undesired electromagnetic waves while transmitting desired signals. The present embodiment relates to an electromagnetic wave shielding filter for high-frequency communication, the electromagnetic wave shielding filter having a structure in which an elliptical ferrite magnetic core is formed inside the filter, a primary coil and a secondary coil are respectively provided at both ends of the core, and a shielding and penetrating part of the elliptical magnetic core is finished with an electromagnetic wave shielding material, such that a primary coil-side signal is transmitted, in the form of a magnetic field, to the secondary coil, and the remaining undesired common mode components are removed.
Inventors:
SHIN GUNIL (KR)
Application Number:
PCT/KR2022/010887
Publication Date:
January 26, 2023
Filing Date:
July 25, 2022
Export Citation:
Assignee:
SHIN GUNIL (KR)
International Classes:
H01F27/36; H01F1/03; H01Q7/04; H05K9/00
Domestic Patent References:
| WO2015190229A1 | 2015-12-17 |
Foreign References:
| KR20180071826A | 2018-06-28 | |||
| KR20120023187A | 2012-03-12 | |||
| KR20170132595A | 2017-12-04 | |||
| KR102372134B1 | 2022-03-08 |
Attorney, Agent or Firm:
JANG, Wansoo (KR)
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