Full-polarization single-passband bilateral microwave absorbing band composite metamaterial and antenna housing
A metamaterial and single-passband technology, applied to antennas, radiation unit covers, electrical components, etc., to achieve the effects of improving manufacturing accuracy, reducing costs, and reducing processing difficulty
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[0027] Such as figure 2 As shown, the micro-unit structure of the metamaterial provided by the present invention includes a dielectric substrate 11 made of a non-conductive material and a micro-unit structure 10 of two periodic metamaterial structural layers on the upper and lower surfaces of the dielectric substrate, They are the ring-shaped resistive film 12 and the square metal frequency selective surface 13 respectively. In this embodiment, the dielectric substrate uses TSM-DS3 non-conductive material of Taconic Company, the thickness of the entire dielectric substrate is 4-6 mm, and the relative dielectric constant of the dielectric substrate is 2-4. The surface resistivity of the ring-shaped resistive film is 50 ohm / square. The metal foil layer can be any material of gold foil, silver foil or copper foil in the metal foil, the thickness of the metal foil is 0.02-0.05 mm, and the thickness of the resistance film is 0.02-0.05 mm.
[0028] Such as image 3 Shown is a sc...
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