Figure 4
From: Three-dimensional illusion thermal device for location camouflage
The schematic to construct the artificial materials used in the device. (a) The artificial material with required thermal conductivity can be constructed by unit cells in regular arrangement. (b) The unit cells with different structures are designed to meet the requirements in different pyramids in device. In structure A, a cubic hole is drilled in the base material (brass). In structure B, a cross-shaped through-hole is drilled on the base material. Structure C and structure D are simplified structures from structure A and B, respectively.
