CNT-based signature control material
First Claim
1. A radar absorbing composite comprising a carbon nanotube-infused fiber material disposed in at least a portion of a matrix material, the composite being capable of absorbing radar in a frequency range from between about 0.10 Megahertz to about 60 Gigahertz, the carbon nanotube-infused fiber material forming a first layer that reduces radar reflectance and a second layer that dissipates the energy of the absorbed radar.
3 Assignments
0 Petitions
Accused Products
Abstract
A radar absorbing composite includes a (CNT)-infused fiber material disposed in at least a portion of a matrix material. The composite absorbs radar in a frequency range from about 0.10 Megahertz to about 60 Gigahertz. The CNT-infused fiber material forms a first layer that reduces radar reflectance and a second layer that dissipates the energy of the radar. A method of manufacturing this composite includes disposing a CNT-infused fiber material in a portion of a matrix material with a controlled orientation of the CNT-infused fiber material within the matrix material, and curing the matrix material. The composite can be formed into a panel which is adaptable as a structural component of a transport vessel or missile for use in stealth applications.
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Citations
17 Claims
- 1. A radar absorbing composite comprising a carbon nanotube-infused fiber material disposed in at least a portion of a matrix material, the composite being capable of absorbing radar in a frequency range from between about 0.10 Megahertz to about 60 Gigahertz, the carbon nanotube-infused fiber material forming a first layer that reduces radar reflectance and a second layer that dissipates the energy of the absorbed radar.
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13. A method of manufacturing a radar absorbing composite, the composite comprising a carbon nanotube-infused fiber material disposed in at least a portion of a matrix material, the composite being capable of absorbing radar in a frequency range from between about 0.10 Megahertz to about 60 Gigahertz, the carbon nanotube-infused fiber material forming a first layer that reduces radar reflectance and a second layer that dissipates the energy of the absorbed radar, the method comprising disposing a carbon nanotube-infused fiber material in a portion of a matrix material with a controlled orientation of the carbon nanotube-infused fiber material within the matrix material, and curing the matrix material, wherein the controlled orientation of the carbon nanotube-infused fiber material controls the relative orientation of carbon nanotubes-infused thereon.
- 14. A panel comprising a composite, the composite comprising a carbon nanotube-infused fiber material disposed in at least a portion of a matrix material, the composite being capable of absorbing radar in a frequency range from between about 0.10 Megahertz to about 60 Gigahertz, the carbon nanotube-infused fiber material forming a first layer that reduces radar reflectance and a second layer that dissipates the energy of the absorbed radar, the panel being adaptable as a structural component of a transport vessel or missile for use in stealth applications.
Specification