基于单线圈双谐振结构的无线携能通信系统架构研究与设计

摘要

The simultaneous transmission of wireless power and wireless information is a hotspot of wireless charging system. Based on the single coil and dual band resonant structure, system model has been constructed. The formulas of Q value in energy transmission frequency, the bandwidth value of signal transmission frequency and the crosstalk between the energy and signal transmission channel have been deduced. From the view of balancing the transmission power performance and signal transmission rate, the design methods for circuit parameters were analyzed. Finally, simulation models and experimental platform were set up to verify the proposed circuit design method.%无线能量与无线信号的同时传输是目前无线电能传输系统研究的热点.本文以单线圈双谐振磁耦合结构为研究对象,构建系统模型,推导能量传输频率点的Q值、信号传输频率点的带宽、以及能量谐振通道与信号谐振通道之间的串扰公式.从兼顾能量传输性能和信号传输速率的角度,分析基于单线圈双谐振结构的无线携能通信系统电路参数设计的影响因素,给出电路参数的设计方法.最后,搭建仿真模型和实验平台,对所提出的电路参数设计方法进行验证.