Radar Wave Camouflage Structure and Method for Fabricating the Same
First Claim
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7-1. The radar wave camouflage structure as claimed in claim 1, wherein the substrate comprises cloth.
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Abstract
A radar wave camouflage structure is disclosed. The radar wave camouflage structure comprises a substrate; a first layer on the substrate, comprising a first polymer matrix; magnetic nanoparticles dispersed in the first polymer matrix, wherein the magnetic nanoparticles comprise a mixture of Fe3O4, Fe3O4—4C carbide, Fe3O4—Ni composite and Fe2O3; a second layer on the first layer, comprising a second polymer matrix; and carbon black dispersed in the second polymer matrix.
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Citations
29 Claims
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7-1. The radar wave camouflage structure as claimed in claim 1, wherein the substrate comprises cloth.
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8-2. The radar wave camouflage structure as claimed in claim 7, further comprising:
a first layer of radar wave camouflage materials having a thickness between about 10 and 50 μ
m on the substrate, comprising;a polyurethane (PU) resin; magnetic nanoparticles dispersed in the polyurethane (PU) resin, wherein the magnetic nanoparticles comprise a mixture of Fe3O4, Fe3O4—
4C carbide, Fe3O4—
Ni composite and Fe2O3;Sb2O3;
anda rubber softening oil
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9-3. The radar wave camouflage structure as claimed in claim 8, further comprising:
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a second layer having a thickness between about 0.1 and 1 mm on the first layer, comprising; a polyurethane (PU) resin; carbon black dispersed in the second polymer matrix; a filler comprising zinc stearate; a matting agent; and a rubber softening oil, wherein an absorbance of the radar wave camouflage structure is greater than 10 dB in a 8˜
12 GHz frequency band.
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14. A method of fabricating a radar wave camouflage structure, comprising:
- providing a substrate;
forming a first layer on the substrate, comprising; a first polymer matrix; and magnetic nanoparticles dispersed in the first polymer matrix, wherein the magnetic nanoparticles comprise a mixture of Fe3O4, Fe3O4—
4C carbide, Fe3O4—
Ni composite and Fe2O3; andforming a second layer on the first layer, comprising; a second polymer matrix; and carbon black dispersed in the second polymer matrix. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
- providing a substrate;
Specification