▎ 摘 要
NOVELTY - A metamaterial dielectric substrate has a nano silicon carbide ceramic layer, graphite powder and graphene layer. The nano silicon carbide ceramic layer has content of boron of 0.1-10 %mass and content of carbon of 0.1-3.5 %mass. The mass ratio of the graphite powder is 40-60 %mass. USE - Metamaterial dielectric substrate (claimed). ADVANTAGE - The metamaterial dielectric substrate has increased thermal conductivity, hardness and heat resistance, and reduced thermal expansion coefficient.