A Negative Magnetic Permeability Metamaterial and MRI Magnetic Signal Enhancement Device
A technology of negative magnetic permeability and metamaterials, which is applied in the field of metamaterials, can solve the problems of lower resonance frequency and low resonance frequency of metamaterials, and achieve the effects of magnetic signal enhancement, enhanced imaging effect, and increased capacitance
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[0025] The present invention provides a negative magnetic permeability metamaterial, such as figure 2 As shown, it includes a substrate 4 and a plurality of first artificial microstructures 1 and second artificial microstructures 2 arranged in periodic arrays on both sides of the substrate 4. The first artificial microstructures 1 and the second artificial microstructures 2 pass through a metal The via holes 5 are connected, the first artificial microstructure 1 and the second artificial microstructure 2 are covered with a protective layer 3, and the first artificial microstructure 1 and the second artificial microstructure 2 are a square spiral ring.
[0026] The number of nested circles of the first artificial microstructure 1 and the second artificial microstructure 2 should be greater than or equal to 1 circle. A circle in this article refers to such image 3 As shown, take a point inside the ring surrounded by the square spiral ring as the pole O of the polar coordinates...
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