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CA2254314A1 - Materiau composite structural absorbant les ondes radar et utilisation d'un tel materiau - Google Patents

Materiau composite structural absorbant les ondes radar et utilisation d'un tel materiau

Info

Publication number
CA2254314A1
CA2254314A1 CA002254314A CA2254314A CA2254314A1 CA 2254314 A1 CA2254314 A1 CA 2254314A1 CA 002254314 A CA002254314 A CA 002254314A CA 2254314 A CA2254314 A CA 2254314A CA 2254314 A1 CA2254314 A1 CA 2254314A1
Authority
CA
Canada
Prior art keywords
radar waves
layer
conductive particles
composite structural
structural composite
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.)
Granted
Application number
CA002254314A
Other languages
English (en)
Other versions
CA2254314C (fr
Inventor
Jean-Francois Escarmant
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.)
Giat Industries SA
Original Assignee
Giat Industries SA
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 Giat Industries SA filed Critical Giat Industries SA
Publication of CA2254314A1 publication Critical patent/CA2254314A1/fr
Application granted granted Critical
Publication of CA2254314C publication Critical patent/CA2254314C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H01Q1/422—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material
    • 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
    • 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
    • H01Q17/008—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems with a particular shape

Landscapes

  • Laminated Bodies (AREA)
  • Aerials With Secondary Devices (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

L'invention concerne un matériau composite structural 1 apte à absorber des ondes radar de fréquences 8 à 18 GHz, 35 GHz et 94 GHz. Ce matériau comprend au moins trois couches 3, 4, 5 de matériaux diélectriques non magnétiques obtenues à partir d'un empilement de plis imprégnés : - une couche externe 3 faiblement réflectrice et à faibles pertes ayant une permittivité diélectrique réelle de l'ordre de 3, pour favoriser la pénétration des ondes radar incidentes, - une couche intermédiaire 4 ayant une permittivité diélectrique réelle de l'ordre de 5, et - une couche interne 5 chargée de particules électriquement conductrices et ayant une permittivité diélectrique réelle importante de l'ordre de 15 à 20. Application à la fabrication de coffres pour véhicules militaires.
CA002254314A 1997-12-11 1998-12-10 Materiau composite structural absorbant les ondes radar et utilisation d'un tel materiau Expired - Fee Related CA2254314C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9715681 1997-12-11
FR9715681A FR2772520B1 (fr) 1997-12-11 1997-12-11 Materiau composite structural absorbant les ondes radar et utilisation d'un tel materiau

Publications (2)

Publication Number Publication Date
CA2254314A1 true CA2254314A1 (fr) 1999-06-11
CA2254314C CA2254314C (fr) 2006-08-08

Family

ID=9514465

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002254314A Expired - Fee Related CA2254314C (fr) 1997-12-11 1998-12-10 Materiau composite structural absorbant les ondes radar et utilisation d'un tel materiau

Country Status (7)

Country Link
US (1) US6111534A (fr)
EP (1) EP0924798B1 (fr)
AT (1) ATE288139T1 (fr)
CA (1) CA2254314C (fr)
DE (1) DE69828759T2 (fr)
ES (1) ES2232924T3 (fr)
FR (1) FR2772520B1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6224982B1 (en) * 1999-12-21 2001-05-01 Lockhead Martin Corporation Normal incidence multi-layer elastomeric radar absorber
DE10004706B4 (de) * 2000-02-03 2005-12-22 Epcos Ag Schichtstapel für einen Elektrolyt-Kondensator
SE523348C2 (sv) * 2002-08-15 2004-04-13 Totalfoersvarets Forskningsins Genomsynlig ruta med radarreflekterande egenskaper
US8689671B2 (en) 2006-09-29 2014-04-08 Federal-Mogul World Wide, Inc. Lightweight armor and methods of making
DE102007003999A1 (de) * 2007-01-26 2008-08-07 Diehl Bgt Defence Gmbh & Co. Kg Strahlungsfilter
US7834799B1 (en) 2008-05-23 2010-11-16 Composite Engineering, Inc. System and method for fabricating composite laminate structures with co-laminated radar absorbing material
TWI369943B (en) * 2009-09-23 2012-08-01 Univ Nat Taiwan Electromagnetic wave absorption component and electromagnetic wave absorption device
EP2833478A1 (fr) * 2012-03-30 2015-02-04 Micromag 2000, S.L. Atténuateur de rayonnements électromagnétiques
US9608321B2 (en) * 2013-11-11 2017-03-28 Gogo Llc Radome having localized areas of reduced radio signal attenuation
US9263800B2 (en) 2013-12-27 2016-02-16 Toyota Motor Engineering & Manufacturing North America, Inc. Artificial skin for radar mannequins
CN104197785A (zh) * 2014-09-02 2014-12-10 零八一电子集团四川红轮机械有限公司 防弹防爆电磁屏蔽方舱壁板
CN104527175A (zh) * 2014-12-15 2015-04-22 沈阳航空航天大学 一种纳米吸波薄膜功能化改性复合材料层压板的方法
CN104763099B (zh) * 2015-03-06 2017-07-07 中国人民解放军国防科学技术大学 具有雷达隐身功能的方舱大板及其制备方法
US10697856B2 (en) 2016-07-08 2020-06-30 Dynamic Research Inc. To a soft collision partner (aka soft car) used in system for testing crash avoidance technologies
CN111516340B (zh) * 2020-07-03 2020-09-22 宁波曙翔新材料股份有限公司 一种隐身抗毁屏蔽材料及其制备方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL112646C (fr) * 1958-12-04
FR1357823A (fr) * 1963-03-01 1964-04-10 Csf Enveloppes pour récepteurs et émetteurs hyperfréquence
US3938152A (en) * 1963-06-03 1976-02-10 Mcdonnell Douglas Corporation Magnetic absorbers
US3680107A (en) * 1967-04-11 1972-07-25 Hans H Meinke Wide band interference absorber and technique for electromagnetic radiation
US3631492A (en) * 1968-10-09 1971-12-28 Kunihiro Suetake Multilayer wave absorbing wall
US3737903A (en) * 1970-07-06 1973-06-05 K Suetake Extremely thin, wave absorptive wall
DE3117245A1 (de) * 1981-04-30 1982-11-18 Bayer Ag, 5090 Leverkusen Verwendung textiler metallisierter polwaren als mikrowellenabsorber
DE3307066A1 (de) * 1983-03-01 1984-09-13 Dornier Gmbh, 7990 Friedrichshafen Mehrschichtiger faserverbundwerkstoff
JPH02142200A (ja) * 1988-11-22 1990-05-31 Akzo Kashima Ltd 電波吸収体
US5017939A (en) * 1989-09-26 1991-05-21 Hughes Aircraft Company Two layer matching dielectrics for radomes and lenses for wide angles of incidence
GB2257302A (en) * 1991-06-28 1993-01-06 Grace Nv Chiral absorber
KR930011548B1 (ko) * 1991-08-13 1993-12-10 한국과학기술연구원 적층형 전파흡수체

Also Published As

Publication number Publication date
FR2772520A1 (fr) 1999-06-18
DE69828759T2 (de) 2006-05-18
CA2254314C (fr) 2006-08-08
EP0924798B1 (fr) 2005-01-26
US6111534A (en) 2000-08-29
EP0924798A1 (fr) 1999-06-23
FR2772520B1 (fr) 2000-01-14
ATE288139T1 (de) 2005-02-15
DE69828759D1 (de) 2005-03-03
ES2232924T3 (es) 2005-06-01

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