Abstract
Magnetic resonance coupling radio energy transmission technology has become a research hotspot of radio energy transmission technology because of its advantages of high transmission efficiency, long transmission distance and small transmission radiation distance and small transmission radiation. However, when two coils transmit energy through magnetic coupling, they have the disadvantages of low transmission efficiency in low coupling region and “frequency splitting” phenomenon in medium and high coupling region. In this paper, the solution of loading the auxiliary coil is presented, and the radio energy transmission system before and after loading the auxiliary coil is modeled and analyzed. Then, the paper deduces the theoretical relation and simulates the transmission efficiency and output power before and after loading the auxiliary coil, and carries out the experimental verification. Theoretical analysis, simulation and experimental structure all verify the effectiveness of the loading auxiliary coil.
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