Current Developments of RF Energy Harvesting System for Wireless Sensor Networks

Z. Zakaria, N. Zainuddin, M. N. Husain, Mohamad Zoinol, Abidin Abd Aziz, M. A. Mutalib, Abdul Rani Othman
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引用次数: 46

Abstract

Energy harvesting or energy scavenging is basically a conversion process of the ambient energy into the electrical energy. The ambient energy exists around us in many different forms including thermal, chemical, electrical and radio frequency (RF). This technique significantly reduces the costs of replacing batteries periodically. Hence, energy harvesting offers various environmental friendly alternative energy sources, which include the vibration, electromagnetic wave, wind energy and solar power. This study will focus on RF energy harvesting that involves the generating of a small amount of the electrical power to drive circuits in wireless communication electronics devices. Recently, wireless sensor network (WSN) has been a crucial part of our daily life. The importance of WSN can be described by the use of sensors in many devices for home security including light sensors, room thermostat and alarm systems. This paper presents an overview and the progress achieved in RF energy harvesting, which involves the integration of antenna with rectifying circuit. Different combinations of antenna and rectifier topologies yield diverse results. Therefore, this study is expected to give an indication on the appropriate techniques to develop an efficient RF energy harvesting system.
无线传感器网络射频能量采集系统的研究进展
能量收集或能量清除基本上是将环境能量转化为电能的过程。环境能量以多种不同的形式存在于我们周围,包括热能、化学能、电能和射频(RF)。这项技术大大降低了定期更换电池的成本。因此,能量收集提供了各种环境友好的替代能源,包括振动、电磁波、风能和太阳能。这项研究将集中于射频能量收集,涉及产生少量电力来驱动无线通信电子设备中的电路。近年来,无线传感器网络(WSN)已经成为我们日常生活中至关重要的一部分。无线传感器网络的重要性可以通过在许多家庭安全设备中使用传感器来描述,包括光传感器,房间恒温器和报警系统。本文综述了射频能量收集技术的研究进展,其中包括天线与整流电路的集成。天线和整流器拓扑结构的不同组合产生不同的结果。因此,这项研究有望为开发有效的射频能量收集系统提供适当的技术指示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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