人体植入式设备的中场无线能量传输技术

Midfield Wireless Power Transfer Technology for Human Implantable Device

便捷有效的为人体植入式设备提供能量促使科技人员不断探索新的无线能量传输技术(WPTT),中场无线能量传输技术(MWPTT)是无线能量传输发展过程中最新的一种方法,与传统采用线圈的磁感应和磁共振耦合的方法相比,能量传输工作频率从兆赫兹频段提高到吉赫兹频段,使得植入式设备的尺寸由厘米级缩小到毫米级,在满足人体比吸收率(SAR)标准的同时提高了能量传输效率和穿透深度。在此总结MWPTT的发展进程,首先介绍了 MWPTT的模型假设和理论依据,然后从中场系统最优源的模型分析、物理实现以及应用效果等方面综述了 MWPTT的研究水平,最后对MWPTT的发展前景进行了展望。

Scientists continuously explore new wireless power transfer technology (WPTT) in order to supply power for human implantable devices conveniently and effectively. Midfield wireless power transfer technology (MWPTT) is the latest method during developing of wireless power transfer. Comparing with the traditional magnetic induction and magnetic resonance coupling based on coils, the operating frequency is improved from MHz band to GHz band, the size of implantable devices is reduced from cm size to mm size, and wireless power transfer efficiency and penetration depth is increased simultaneously while satisfying the human specific absorption rate(SAR) standard.The research process of midfield wireless power transfer technology is summarized. Model assumption and theoretical derivation of the MWPTT is introduced.Then the research level of the MWPTT is summarized from model analysis, physical realization, application effects for the midfield system's optimal source.Finally, the prospects for the future of MWPTT is claimed.