Materials for electromagnetic wave absorption panels
AssigneesSymetrix Corporation, Fujita Corporation
InventorsVikram Joshi, Kenichi Kimura, Carlos A. Paz de Araujo, Hiroshi Kiyokawa
Life of this patent
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Abstract
An electromagnetic wave absorption panel for use in building construction includes a protective tile layer, an absorber layer, a metal reflective layer, and a building support layer, such as concrete. The absorber layer utilizes novel materials including high dielectric constant materials, such as ABO.sub.3 type perovskites, layered superlattice materials, conducting oxides, and signet magnetics, ferroelectrics, such as ABO.sub.3 type perovskites and layered superlattice materials, garnets, a nickel-zinc ferrite, Ni.sub.0.4 Zn.sub.0.6 Fe.sub.2 O.sub.4, and polymer-ceramic composites of the above materials.
Claims19
An electromagnetic wave absorption panel for use in building construction, said absorption panel comprising:
- a building support element;
- and
- an absorber element supported by said support element, said absorber element comprising a high dielectric constant material, said high dielectric constant material selected from the group consisting of layered superlattice materials and signet magnetics.
An electromagnetic wave absorption panel for use in building construction, said absorption panel comprising:
- a building support element;
- and
- an absorber element supported by said support element, said absorber element comprising a layered superlattice material.
An electromagnetic wave absorption panel for use in building construction, said absorption panel comprising:
- a building support element;
- and
- an absorber element supported by said support element, said absorber element comprising a composite of a polymer and a second material selected from the group consisting of:
- layered superlattice materials, magnetoplumbites, garnets, and signet magnetics.
An electromagnetic wave absorption panel for use in building construction, said absorption panel comprising:
- a building support element;
- and
- an absorber element supported by said support element, said absorber element comprising.
An electromagnetic wave absorption panel for use in building construction, said absorption panel comprising:
- a building support element;
- and
- an absorber element supported by said support element, said absorber element comprising a garnet.
An electromagnetic wave absorption panel for use in building construction, said absorption panel comprising:
- a building support element;
- and
- an absorber element supported by said support element, said absorber element comprising a magnetoresistive material;
- wherein the magnetoresistive material is selected from the group consisting of La.sub.0.67 Sr.sub.0.33 MnO.sub.3, La.sub.x Ca.sub.(1-x) MnO.sub.3 and La.sub.x Pb.sub.(1-x) MnO.sub.3 where 0<x<1.
An electromagnetic wave absorption panel for use in building construction, said absorption panel comprising:
- a building support element;
- and
- an absorber element supported by said support element, said absorber element comprising Ni .sub.x Zn.sub.01-x Fe.sub.2 O.sub.4 where 0.35.ltoreq.x .ltoreq.0.4.
Dependencies are inferred from the claim text.