KR102451729B9 - 전파 흡수체 조성물 및 이를 포함하는 전파 흡수 시트 - Google Patents

전파 흡수체 조성물 및 이를 포함하는 전파 흡수 시트

Info

Publication number
KR102451729B9
KR102451729B9 KR1020210015701A KR20210015701A KR102451729B9 KR 102451729 B9 KR102451729 B9 KR 102451729B9 KR 1020210015701 A KR1020210015701 A KR 1020210015701A KR 20210015701 A KR20210015701 A KR 20210015701A KR 102451729 B9 KR102451729 B9 KR 102451729B9
Authority
KR
South Korea
Prior art keywords
radio wave
wave absorber
composition
same
sheet
Prior art date
Application number
KR1020210015701A
Other languages
English (en)
Other versions
KR20220112114A (ko
KR102451729B1 (ko
Inventor
강영민
Original Assignee
한국교통대학교산학협력단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국교통대학교산학협력단 filed Critical 한국교통대학교산학협력단
Priority to KR1020210015701A priority Critical patent/KR102451729B1/ko
Publication of KR20220112114A publication Critical patent/KR20220112114A/ko
Application granted granted Critical
Publication of KR102451729B1 publication Critical patent/KR102451729B1/ko
Publication of KR102451729B9 publication Critical patent/KR102451729B9/ko

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2683—Other ferrites containing alkaline earth metals or lead
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/004—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems using non-directional dissipative particles, e.g. ferrite powders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
    • H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
    • H05K9/0031—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields combining different shielding materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Soft Magnetic Materials (AREA)
KR1020210015701A 2021-02-03 2021-02-03 전파 흡수체 조성물 및 이를 포함하는 전파 흡수 시트 KR102451729B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020210015701A KR102451729B1 (ko) 2021-02-03 2021-02-03 전파 흡수체 조성물 및 이를 포함하는 전파 흡수 시트

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020210015701A KR102451729B1 (ko) 2021-02-03 2021-02-03 전파 흡수체 조성물 및 이를 포함하는 전파 흡수 시트

Publications (3)

Publication Number Publication Date
KR20220112114A KR20220112114A (ko) 2022-08-10
KR102451729B1 KR102451729B1 (ko) 2022-10-06
KR102451729B9 true KR102451729B9 (ko) 2023-02-23

Family

ID=82846817

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020210015701A KR102451729B1 (ko) 2021-02-03 2021-02-03 전파 흡수체 조성물 및 이를 포함하는 전파 흡수 시트

Country Status (1)

Country Link
KR (1) KR102451729B1 (ko)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100814278B1 (ko) * 2006-09-14 2008-03-18 한국기계연구원 비-스테이지 경화된 레진필름을 이용한 전자파 흡수체 및이의 제조방법
JP5842999B2 (ja) * 2012-03-22 2016-01-13 富士電機株式会社 マンガン酸化物薄膜および酸化物積層体
JP6598809B2 (ja) * 2017-03-21 2019-10-30 三菱電機株式会社 電波吸収体、その製造方法及び高周波モジュール

Also Published As

Publication number Publication date
KR20220112114A (ko) 2022-08-10
KR102451729B1 (ko) 2022-10-06

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Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
G170 Re-publication after modification of scope of protection [patent]