KR880006726A - 전파 흡수제 - Google Patents

전파 흡수제 Download PDF

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Publication number
KR880006726A
KR880006726A KR1019870008853A KR870008853A KR880006726A KR 880006726 A KR880006726 A KR 880006726A KR 1019870008853 A KR1019870008853 A KR 1019870008853A KR 870008853 A KR870008853 A KR 870008853A KR 880006726 A KR880006726 A KR 880006726A
Authority
KR
South Korea
Prior art keywords
radio wave
wave absorber
powder
fcs
retainer
Prior art date
Application number
KR1019870008853A
Other languages
English (en)
Other versions
KR900006195B1 (ko
Inventor
요시유끼 나이도오
Original Assignee
다까하시 미찌하루
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 다까하시 미찌하루 filed Critical 다까하시 미찌하루
Publication of KR880006726A publication Critical patent/KR880006726A/ko
Application granted granted Critical
Publication of KR900006195B1 publication Critical patent/KR900006195B1/ko

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Hard Magnetic Materials (AREA)
  • Aerials With Secondary Devices (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

내용 없음

Description

전파 흡수제
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 전파 흡수재의 재료혼합비를 나타내는 특성도.
제2도는 본 발명의 한 실시예의 주파수대 특성을 나타내는 그림이며,
제3도 및 제4도는 종래의 전파 흡수재의 재료구성을 나타내는 특성도이다.
* 도면의 주요부분에 대한 부호의 설명
F : 페라이트 C : 카아본

Claims (1)

  1. 자성재료 분말 및 카아본 분말을 보지체(binder)중에 혼입하여 전술한 각 분말의 입자를 공간적으로 보지되도록 한 전파 흡수재로서 위 보지제 자성재로 분말 및 카아본 분말의 중량비를 1 : F : C라 할 때, 이들 F.C는 아래의 범위내가 되도록 한 전파 흡수재.
    │F-C│0.3
    0.45F1/.05
    0.45C1.05
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870008853A 1986-11-19 1987-08-12 전파 흡수제 KR900006195B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP276288 1986-11-19
JP61276288A JPH0650799B2 (ja) 1986-11-19 1986-11-19 電波吸収材

Publications (2)

Publication Number Publication Date
KR880006726A true KR880006726A (ko) 1988-07-23
KR900006195B1 KR900006195B1 (ko) 1990-08-25

Family

ID=17567360

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870008853A KR900006195B1 (ko) 1986-11-19 1987-08-12 전파 흡수제

Country Status (5)

Country Link
US (1) US4862174A (ko)
EP (1) EP0339146B1 (ko)
JP (1) JPH0650799B2 (ko)
KR (1) KR900006195B1 (ko)
DE (1) DE3876981T2 (ko)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655997B1 (fr) * 1988-01-18 1992-04-30 Commissariat Energie Atomique Enduit absorbant, son procede de fabrication et revetement obtenu a l'aide de cet enduit.
DE3818114A1 (de) * 1988-05-27 1989-11-30 Gruenzweig & Hartmann Montage Absorber fuer elektromagnetische und akustische wellen
ES2075167T3 (es) * 1989-10-26 1995-10-01 Colebrand Ltd Absorbentes.
US5169713A (en) * 1990-02-22 1992-12-08 Commissariat A L'energie Atomique High frequency electromagnetic radiation absorbent coating comprising a binder and chips obtained from a laminate of alternating amorphous magnetic films and electrically insulating
JP2956875B2 (ja) * 1994-05-19 1999-10-04 矢崎総業株式会社 電磁遮蔽用成形材料
US6146691A (en) * 1995-01-04 2000-11-14 Northrop Grumman Corporation High-performance matched absorber using magnetodielectrics
US6700939B1 (en) 1997-12-12 2004-03-02 Xtremespectrum, Inc. Ultra wide bandwidth spread-spectrum communications system
US7346120B2 (en) 1998-12-11 2008-03-18 Freescale Semiconductor Inc. Method and system for performing distance measuring and direction finding using ultrawide bandwidth transmissions
US6351246B1 (en) 1999-05-03 2002-02-26 Xtremespectrum, Inc. Planar ultra wide band antenna with integrated electronics
AU2001282867A1 (en) 2000-08-07 2002-02-18 Xtremespectrum, Inc. Electrically small planar uwb antenna apparatus and system thereof
JP3922039B2 (ja) * 2002-02-15 2007-05-30 株式会社日立製作所 電磁波吸収材料及びそれを用いた各種製品
US7506547B2 (en) * 2004-01-26 2009-03-24 Jesmonth Richard E System and method for generating three-dimensional density-based defect map
US8098707B2 (en) * 2006-01-31 2012-01-17 Regents Of The University Of Minnesota Ultra wideband receiver
US20070196621A1 (en) * 2006-02-02 2007-08-23 Arnold Frances Sprayable micropulp composition
CN102352215A (zh) * 2011-07-28 2012-02-15 西北工业大学 一种电磁双复纳米微波吸收剂Fe3O4/NanoG的制备方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023174A (en) * 1958-03-10 1977-05-10 The United States Of America As Represented By The Secretary Of The Navy Magnetic ceramic absorber
US4012738A (en) * 1961-01-31 1977-03-15 The United States Of America As Represented By The Secretary Of The Navy Combined layers in a microwave radiation absorber
US3308462A (en) * 1962-10-02 1967-03-07 Conductron Corp Magnetic laminate
US3938152A (en) * 1963-06-03 1976-02-10 Mcdonnell Douglas Corporation Magnetic absorbers
US3348224A (en) * 1964-01-20 1967-10-17 Mcmillan Corp Of North Carolin Electromagnetic-energy absorber and room lined therewith
US3540047A (en) * 1968-07-15 1970-11-10 Conductron Corp Thin film magnetodielectric materials
US3742176A (en) * 1969-06-26 1973-06-26 Tdk Electronics Co Ltd Method for preventing the leakage of microwave energy from microwave heating oven
US3737903A (en) * 1970-07-06 1973-06-05 K Suetake Extremely thin, wave absorptive wall
US3754255A (en) * 1971-04-05 1973-08-21 Tokyo Inst Tech Wide band flexible wave absorber
JPS50155999A (ko) * 1974-06-05 1975-12-16
JPS61284089A (ja) * 1985-06-07 1986-12-15 内藤　喜之 マイクロ波加熱装置用電磁波漏洩防止装置

Also Published As

Publication number Publication date
KR900006195B1 (ko) 1990-08-25
EP0339146A1 (en) 1989-11-02
DE3876981D1 (de) 1993-02-04
EP0339146B1 (en) 1992-12-23
JPH0650799B2 (ja) 1994-06-29
US4862174A (en) 1989-08-29
JPS63128794A (ja) 1988-06-01
DE3876981T2 (de) 1993-06-09

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