JP7197061B1 - 高周波拡散シート - Google Patents

高周波拡散シート Download PDF

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Publication number
JP7197061B1
JP7197061B1 JP2022536862A JP2022536862A JP7197061B1 JP 7197061 B1 JP7197061 B1 JP 7197061B1 JP 2022536862 A JP2022536862 A JP 2022536862A JP 2022536862 A JP2022536862 A JP 2022536862A JP 7197061 B1 JP7197061 B1 JP 7197061B1
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JP
Japan
Prior art keywords
diffusion sheet
electromagnetic wave
frequency diffusion
wave shielding
shielding layer
Prior art date
Legal status (The legal status 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 status listed.)
Active
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JP2022536862A
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English (en)
Japanese (ja)
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JPWO2022210210A1 (https=
JPWO2022210210A5 (https=
Inventor
俊明 渡邊
猛 八月朔日
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co Ltd
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Publication date
Application filed by Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Publication of JPWO2022210210A1 publication Critical patent/JPWO2022210210A1/ja
Application granted granted Critical
Publication of JP7197061B1 publication Critical patent/JP7197061B1/ja
Publication of JPWO2022210210A5 publication Critical patent/JPWO2022210210A5/ja
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/526—Electromagnetic shields
    • 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
    • H05K9/0084—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a single continuous metallic layer on an electrically insulating supporting structure, e.g. metal foil, film, plating coating, electro-deposition, vapour-deposition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Laminated Bodies (AREA)
  • Aerials With Secondary Devices (AREA)
JP2022536862A 2021-03-29 2022-03-23 高周波拡散シート Active JP7197061B1 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021056247 2021-03-29
JP2021056247 2021-03-29
PCT/JP2022/013710 WO2022210210A1 (ja) 2021-03-29 2022-03-23 高周波拡散シート

Publications (3)

Publication Number Publication Date
JPWO2022210210A1 JPWO2022210210A1 (https=) 2022-10-06
JP7197061B1 true JP7197061B1 (ja) 2022-12-27
JPWO2022210210A5 JPWO2022210210A5 (https=) 2023-02-28

Family

ID=83456814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022536862A Active JP7197061B1 (ja) 2021-03-29 2022-03-23 高周波拡散シート

Country Status (4)

Country Link
US (1) US20240324159A1 (https=)
EP (1) EP4318809A4 (https=)
JP (1) JP7197061B1 (https=)
WO (1) WO2022210210A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025249083A1 (ja) * 2024-05-31 2025-12-04 住友ベークライト株式会社 高周波拡散シート

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003069282A (ja) * 2001-08-30 2003-03-07 Takenaka Komuten Co Ltd 特定電磁波透過板
JP2003258543A (ja) * 2002-03-04 2003-09-12 Shimizu Corp 電磁シールドフイルム
JP2005197898A (ja) * 2004-01-06 2005-07-21 Nissan Motor Co Ltd 受信ユニット

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003124673A (ja) * 2001-10-10 2003-04-25 Toppan Printing Co Ltd 電磁波シールド性を有するフィルム
TW200718346A (en) * 2005-07-13 2007-05-01 Toyo Automation Co Ltd Radio shielding body
JP5853381B2 (ja) 2011-03-09 2016-02-09 Tdk株式会社 アンテナ用磁性材料、並びに、アンテナ及び無線通信機器
ES2466569T3 (es) * 2011-10-27 2014-06-10 Saint-Gobain Glass France Cristal con transmisión de alta frecuencia
EP3003002B1 (en) * 2011-11-30 2017-06-21 Seiji Kagawa Electromagnetic wave absorbing composite sheet
WO2015127196A1 (en) * 2014-02-23 2015-08-27 Cinch Connectivity Solutions, Inc. High isolation grounding device
JP6262615B2 (ja) * 2014-08-05 2018-01-17 信越化学工業株式会社 電磁波シールドシート及び半導体装置
US10164326B2 (en) * 2016-06-02 2018-12-25 The Boeing Company Frequency-selective surface composite structure
KR20190111115A (ko) * 2017-03-13 2019-10-01 후지필름 가부시키가이샤 전자파 실드 부재
US10355721B2 (en) * 2017-05-01 2019-07-16 Palo Alto Research Center Incorporated Multi-band radio frequency transparency window in conductive film
US10905038B1 (en) * 2019-11-19 2021-01-26 Google Llc Electromagnetic interference (“EMI”) sheet attenuators
JP2021166287A (ja) * 2020-04-07 2021-10-14 住友ベークライト株式会社 高周波拡散シート

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003069282A (ja) * 2001-08-30 2003-03-07 Takenaka Komuten Co Ltd 特定電磁波透過板
JP2003258543A (ja) * 2002-03-04 2003-09-12 Shimizu Corp 電磁シールドフイルム
JP2005197898A (ja) * 2004-01-06 2005-07-21 Nissan Motor Co Ltd 受信ユニット

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025249083A1 (ja) * 2024-05-31 2025-12-04 住友ベークライト株式会社 高周波拡散シート

Also Published As

Publication number Publication date
WO2022210210A1 (ja) 2022-10-06
JPWO2022210210A1 (https=) 2022-10-06
EP4318809A1 (en) 2024-02-07
EP4318809A4 (en) 2024-09-25
US20240324159A1 (en) 2024-09-26

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