植入式医疗电子设备的高能效无线收发机芯片关键技术研究

项目名称： 植入式医疗电子设备的高能效无线收发机芯片关键技术研究

项目编号： No.61474070

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 姜汉钧

作者单位： 清华大学

项目金额： 77万元

中文摘要： 植入式医疗电子设备代表医疗器械的未来发展方向，应用需求巨大，市场潜力极大。微型化需求与电源体积、系统功耗之间的矛盾是植入式医疗电子设备主要发展瓶颈。短距离无线收发机是植入式医疗电子设备最主要的能量消耗电路。本项目瞄准用于植入式医疗电子设备的高能效短距离无线收发机芯片，就三个方面开展工作：(1)研究一种高码率、低峰值功耗、低平均能耗的植入式医疗电子设备无线收发机结构，将收发机的平均能耗降低一个数量级；(2) 设计一种在微型电池供电、环境微能量转换、实时无线能量传输等供电方式下均能有效工作的电源管理策略，通过收发机占空比和电源转换电路的协同配合，有效降低收发机的实际峰值能耗；(3)为植入式设备的无线收发机设计一种环境自适应的天线阻抗自动匹配电路结构，提高收发机通信信息交换的能量效率。项目的实施，可将植入式医疗电子设备无线收发机的能效提升一个新台阶，为植入式医疗电子设备进一步发展提供支撑。

中文关键词： 射频集成电路；电源管理；超低功耗；阻抗匹配；植入式

英文摘要： The implantable medical device (IMD) is the major trend of medical instrument in the future. There is great application need and potential market for implantable medical devices. The main bottleneck for implantable medical devices is the constraint by the power supply and the system power consumption, which finally limits the miniaturization of IMDs. This proposal focuses on the high power-efficiency short-range transceiver IC targeted for the implantable medical devices. The research work will be carried out from three aspects: 1) to propose the transceiver architecture with high data rate, low peak power consumption and low average power consumption, which can reduce the average power consumption by order of magnitude; 3) to explore a power management strategy which dynamically mange the transceiver duty cycle and the work modes DC-DC converters, which can be used to improve the IMC power efficiency with different types of power supplies, such as button batteries, wireless energy transfer and environment energy collection; 3) to design an adaptive impedance matching method for the transceiver antenna, which can provide an improved the antenna efficiency inside the human bodies. With this research work, the power efficiency of the wireless transceiver for implantable medical devices will be improved by order of magnitude, which will greatly help the development of implantable medical devices in the future.

英文关键词： RF Integrated Circuit;Power management;Ultra-low power;impedance matching;medical implants