SE8903839D0 - ELECTROMAGNETIC TASKS - Google Patents

ELECTROMAGNETIC TASKS

Info

Publication number
SE8903839D0
SE8903839D0 SE8903839A SE8903839A SE8903839D0 SE 8903839 D0 SE8903839 D0 SE 8903839D0 SE 8903839 A SE8903839 A SE 8903839A SE 8903839 A SE8903839 A SE 8903839A SE 8903839 D0 SE8903839 D0 SE 8903839D0
Authority
SE
Sweden
Prior art keywords
films
tasks
electromagnetic
spacer
waves
Prior art date
Application number
SE8903839A
Other languages
Swedish (sv)
Other versions
SE8903839L (en
SE505057C2 (en
Inventor
O Sagnes
Original Assignee
Thomson Csf
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 Thomson Csf filed Critical Thomson Csf
Publication of SE8903839D0 publication Critical patent/SE8903839D0/en
Publication of SE8903839L publication Critical patent/SE8903839L/en
Publication of SE505057C2 publication Critical patent/SE505057C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/204—Di-electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/208—Magnetic, paramagnetic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/212—Electromagnetic interference shielding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
    • C08G2261/31—Monomer units or repeat units incorporating structural elements in the main chain incorporating aromatic structural elements in the main chain
    • C08G2261/312—Non-condensed aromatic systems, e.g. benzene

Abstract

The invention relates to a structure absorbing electromagnetic waves, comprising at least one element (1) formed by an alveolar spacer sandwiched between two films (2, 3) having an electrical conductivity gradient in their thickness. Application to shielding in the field of centri-metric waves. The spacer may be of honeycomb form and may be formed from an aramide resin impregnated with epoxy resin. The films may be of styrene/butylacrylate latex with polypyrrole made conducting by doping. <IMAGE>
SE8903839A 1988-11-18 1989-11-15 Construction that absorbs electromagnetic waves SE505057C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR888814991A FR2688345B1 (en) 1988-11-18 1988-11-18 ELECTROMAGNETIC WAVE ABSORBING STRUCTURE.

Publications (3)

Publication Number Publication Date
SE8903839D0 true SE8903839D0 (en) 1989-11-15
SE8903839L SE8903839L (en) 1994-04-13
SE505057C2 SE505057C2 (en) 1997-06-16

Family

ID=9371961

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8903839A SE505057C2 (en) 1988-11-18 1989-11-15 Construction that absorbs electromagnetic waves

Country Status (4)

Country Link
DE (1) DE3938299A1 (en)
FR (1) FR2688345B1 (en)
GB (1) GB2264589B (en)
SE (1) SE505057C2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706468B1 (en) * 1993-06-18 1995-07-21 Thomson Csf Process for producing composite material based on conductive polymer.
FR2720194B1 (en) * 1994-05-18 1996-07-26 Aerospatiale Method for producing parts absorbing radar waves and protected against lightning, and parts thus obtained.
JP3772187B2 (en) * 2002-07-18 2006-05-10 国立大学法人 北海道大学 Electromagnetic wave absorber
UA93293C2 (en) * 2009-06-17 2011-01-25 Киевский Национальный Университет Имени Tapaca Шевченко Electromagnetic waves absorbing coatings
EP2429035B1 (en) * 2010-09-09 2013-04-03 Université Catholique De Louvain Hybrid material for electromagnetic absorption
DE102014005146A1 (en) * 2014-04-05 2015-10-08 Airbus Defence and Space GmbH Method for providing spacers
CN107465001B (en) * 2016-06-06 2021-02-26 邵波 Stealth method and device
CN108997711B (en) * 2017-06-07 2023-04-07 洛阳尖端技术研究院 Wave-absorbing impregnation glue solution, wave-absorbing honeycomb and preparation method of wave-absorbing honeycomb

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806928A (en) * 1964-03-16 1974-04-23 American Rockwell Corp Laminated sandwich construction
US4162496A (en) * 1967-04-03 1979-07-24 Rockwell International Corporation Reactive sheets
US4327364A (en) * 1978-12-22 1982-04-27 Rockwell International Corporation Apparatus for converting incident microwave energy to thermal energy
GB2058469B (en) * 1979-08-31 1983-12-14 Plessey Co Ltd Radiation-absorbing materials
US4353069A (en) * 1980-09-10 1982-10-05 Handel Peter H Absorptive coating for the reduction of the reflective cross section of metallic surfaces and control capabilities therefor
GB2192756A (en) * 1986-07-07 1988-01-20 Hoybond Limited Energy absorbing coatings and their use in camouflage
GB8629566D0 (en) * 1986-12-10 1987-09-09 Lantor Uk Ltd Composite material

Also Published As

Publication number Publication date
SE8903839L (en) 1994-04-13
GB2264589A (en) 1993-09-01
FR2688345B1 (en) 1994-09-02
DE3938299A1 (en) 1993-10-28
SE505057C2 (en) 1997-06-16
GB8925693D0 (en) 1993-05-26
FR2688345A1 (en) 1993-09-10
GB2264589B (en) 1994-01-19

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