Tunable dual-frequency negative-magnetic-permeability metamaterial loaded with capacitors
A technology of negative magnetic permeability and metamaterials, applied in the direction of electrical components, antennas, etc., can solve the problems of insufficient cycle size, single resonance frequency point, large volume, etc., to achieve easy device and chip integration, low production cost, and structural simple effect
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Embodiment 1
[0031] A tunable dual-frequency negative permeability metamaterial for loading capacitance proposed in this embodiment, such as figure 1 and figure 2 As shown, it consists of a microstructure unit 1. The microstructure unit 1 is composed of a dielectric substrate 11, a resonant coil 12, and two capacitors 13 and 14. The resonant coil 12 is arranged on the upper surface of the dielectric substrate 11. The resonant coil 12 It is formed by nesting the first metal ring 15, the second metal ring 16, and the third metal ring 17 with the outer radius from large to small, and the first metal ring 15 and the second metal ring 16 are connected in series after the upper side is truncated To form an outer loop, the second metal ring 16 and the third metal ring 17 are cut off at the lower side and then connected in series to form an inner loop. The outer loop and the inner loop form a complete closed loop. Two capacitors 13 and 14 are arranged on the lower surface of the dielectric substr...
Embodiment 2
[0039] A tunable dual-frequency negative permeability metamaterial for loading capacitance proposed in this embodiment has the same structure as that of Embodiment 1, the only difference is that the values of various parameters are different. In this embodiment, The relative dielectric constant of the dielectric substrate 11 is 4.5, the loss tangent value is 0.2, the thickness of the dielectric substrate 11 is 1.0 mm, and the side length is 8.5 mm; the outer radius of the first metal ring 15 is 3.5 mm, and the outer radius of the second metal ring 16 is The outer radius is 3mm, the outer radius of the third metal ring 17 is 2.5mm, the ring width of the first metal ring 15, the second metal ring 16, and the third metal ring 17 are all 0.2mm, and the thickness is 0.03mm. The gap distance between the metal ring 15 and the second metal ring 16, the gap distance between the second metal ring 16 and the third metal ring 17 are both 0.3 mm; the width of the outer gap 181 and the inn...
Embodiment 3
[0041] A tunable dual-frequency negative permeability metamaterial for loading capacitance proposed in this embodiment has the same structure as that of Embodiment 1, the only difference is that the values of various parameters are different. In this embodiment, The relative dielectric constant of the dielectric substrate 11 is 6, the loss tangent value is 0.01, the thickness of the dielectric substrate 11 is 1.5 mm, and the side length is 8.5 mm; the outer radius of the first metal ring 15 is 4 mm, and the outer radius of the second metal ring 16 The radius is 3.3mm, the outer radius of the third metal ring 17 is 2.6mm, the ring width of the first metal ring 15, the second metal ring 16, and the third metal ring 17 are all 0.3mm, and the thickness is 0.1mm. The gap distance between the metal ring 15 and the second metal ring 16, the gap distance between the second metal ring 16 and the third metal ring 17 are both 0.4 mm; the width of the outer gap 181 and the inner gap 182 ...
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Abstract
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