Intelligent desktop wireless power transmission system based on coupled double-resonant-ring metamaterial
A technology of wireless energy transmission and metamaterials, which is applied in the direction of circuits, inductors, electrical components, etc., can solve problems such as limited paths, weak coupling of resonant rings, etc., to avoid weakening, enhance magnetic field coupling strength, and excellent design effects Effect
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Embodiment 1
[0043] Such as figure 1 As shown, in this embodiment, zirconia material with a dielectric constant of 20, a diameter of D=100 mm, and h=5 mm is used to make a ceramic dielectric disk. In this TWPT system, the distance between parallel lines of MTM metal is k=4mm. The outer diameter d3=44mm and the inner diameter d2=40mm of the opening resonant rings on both sides of the system are consistent with the MTM metal wire structure, which is h2=3mm. The entire MTM metal width W=4mm. A ceramic dielectric disc is placed on the MTM metal resonant ring. A copper ring with a width of 4 mm and a thickness of 1 mm was placed 10 mm above the MTM structure as a transmit and receive ring. Such as figure 1 shown. When L=160cm, the system still produces corresponding modal responses at different frequencies, and S21 has three resonance peaks at 72MHz, 144MHz and 216MHz respectively. In the concerned first-order mode, the transmission coefficient at 72MHZ frequency is 0.986, and the transmi...
Embodiment 2
[0045] In this embodiment, the deflection experiment test of the receiver and the transmitter is carried out based on the wireless power transmission system in the first embodiment. The receiver and the transmitter are offset at different angles on the same side and the opposite side respectively. Take a skew of 90° as an example. In this example, the distance between the centers of the two ceramic dielectric discs is kept at 160 cm, the opening of the transceiver coil is always consistent with the opening direction of the metal resonant ring under the ceramic dielectric discs, and other parameters remain unchanged. The designed same-side offset 90° wireless power transfer system is as follows: Figure 4 shown. In this case, the resonance peak of the whole system appears at 64.7MHz, the maximum transmission coefficient of S21 is 0.953, and the transmission efficiency is 90.9%, such as Figure 5 shown. The designed different-side offset 90° wireless power transfer system, s...
Embodiment 3
[0047] In this embodiment, the deflection experiment test of the receiver and the transmitter is carried out based on the wireless power transmission system in the first embodiment. The receiver and the transmitter are respectively offset by the angle of the spatial dimension. Take lifting 90° to the Z axis as an example, h4=h5=197mm, such as Figure 8 shown. In this example, the horizontal distance between the centers of the two ceramic dielectric disks is kept at 160 cm, the opening of the transceiver coil is always consistent with the opening direction of the metal ring under the ceramic dielectric disk, and other parameters remain unchanged. In this case, the TWPT system achieves a maximum transmission coefficient of 0.949 (efficiency η = 90.9%) at 71.7MHz, as Figure 9 shown.
[0048] The present invention proposes a desktop wireless energy system based on coupled double-resonant ring metamaterials. The ceramic dielectric disk working in the magnetic dipole mode gather...
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Abstract
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