Xiaofeng Sun, Dongdong Wang, Guo-hong Du, Yuan Zhao
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Design of Transmissive Near-Field Focusing Metasurface for Wireless Power Transfer
In this paper, the transmissive near-field focusing metasurfaces for wireless power transfer are designed. The transmissive unit consists of three dielectric layers and four metal layers. The metal layer adopts a diamond-shaped patch embedded in a rectangular box, and a circular slot is added to the center of the diamond. The transmission coefficient magnitude of the unit can be beyond 0.8. Meanwhile, the phase of the transmission coefficient can cover 360°. A single-focus transmissive metasurface and a dual-focus transmissive metasurface operating at 10 GHz are designed by employing the proposed unit.
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