射频/微波能量收集系统的整流电路研究进展

射频/微波能量收集系统以可持续、环保等优点在无线传感器网络、可穿戴设备等领域具有广泛应用前景。对近年来射频/微波能量收集系统的整流电路的研究进展进行了概述。分析并讨论了整流电路的技术指标和电路结构,分别从器件研究和电路设计两个方面对整流电路的研究进展进行分析、归纳。从原理、性能提升等方面分析具有低的零偏压电阻值的自旋二极管应用于微瓦量级信号整流电路的潜力;从微弱信号整流、宽输入功率范围信号整流、高功率转换效率整流、阻抗去敏感化4个方面分析了整流电路设计的关键问题,归纳出有效的解决途径并对整流电路的发展趋势进行了展望。

Research Progress of the Rectifier for the RF/Microwave Energy Harvesting System

The RF/microwave energy harvesting system has broad application prospects in the fields of wireless sensor networks and wearable devices due to the advantages of sustainable development and environmental protection.The research progress of the rectifier for the RF/microwave energy harvesting system in recent years is reviewed.The technical specifications and circuit structure of the rectifier are analyzed and discussed.The research progress of the rectifier is analyzed and summarized from two aspects of device research and circuit design.The application potential of the spin diode with low zero bias resistance in microwatt level power rectifier is analyzed from the operating principle,performance enhancement and so on.Key issues of the rectifier design are analyzed from four aspects:weak signal rectification,operating in wide input power range,high power conversion efficiency rectification and mitigating resistance sensitivity.Effective solutions are summarized and the development trend of rectifier is prospected.