自供能无线传感器
Self-Powered Wireless Sensor
AI总结：
本文提出了一种新型能量收集系统，用于从环境RF能量中获取功率以驱动无线传感器。仿真结果表明，零阈值MOSFET在RF到DC转换过程中至关重要。系统能成功收集的最弱功率水平为-37dBm。
摘要：
本文开发了一种新型能量收集系统，用于从环境RF能量中获取功率以驱动无线传感器。RF能量收集是一项极具挑战性的任务，因为功率水平极低。仿真结果表明，零阈值MOSFET在RF到DC转换过程中至关重要。0.5VDC是RF到DC转换阶段的输出最小电压，必须达到才能使微功率传感器电路运行。所提出系统能成功收集的最弱功率水平为-37dBm。使用ribbon FM偶极子天线测量的FM频段可用功率在-33至-43dBm之间波动。环境RF能量最好与其他形式的环境能量结合使用，以增加多样性和可靠性。潜在的经济和环境效益使此类努力变得值得。
英文摘要：
This paper develops a novel power harvesting system to harvest ambient RF energy to power a wireless sensor. Harvesting ambient RF energy is a very difficult task as the power levels are extremely weak. Simulation results show zero threshold MOSFETs are essential in the RF to DC conversion process. 0.5VDC at the output of the RF to DC conversion stage is the minimum voltage which must be achieved for the micro-power sensor circuitry to operate. The weakest power level the proposed system can successfully harvest is -37dBm. The measured available power from the FM band has been measured to fluctuate between -33 to -43dBm using a ribbon FM dipole antenna. Ambient RF energy would best be used in conjunction with other forms of harvested ambient energy to increase diversity and dependability. The potential economic and environmental benefits make such endeavors truly worthwhile.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
