Experimental study of energy harvesting in UHF band

International Conference on Microtechnology and Thermal Problems in Electronics 2015; International Conference on Smart Engineering of New Materials 2015

Bernacki, L.^1 ; Gozdur, R.^1 ; Salamon, N.^1

Department of Semiconductor and Optoelectronic Devices, Lodz University of Technology, Wolczanska 211/215, Lodz

90-924, Poland^1

关键词: Communication process;    Electronic device;    Energy Harvester;    Energy harvesting systems;    Rf energy harvesters;    Sizing technology;    Ultra low power;    Ultra-high frequency;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/709/1/012009/pdf
DOI  :  10.1088/1742-6596/709/1/012009

来源: IOP

【 摘 要 】

A huge progress of down-sizing technology together with trend of decreasing power consumption and, on the other hand, increasing efficiency of electronics give the opportunity to design and to implement the energy harvesters as main power sources. This paper refers to the energy that can be harvested from electromagnetic field in the unlicensed frequency bands. The paper contains description of the most popular techniques and transducers that can be applied in energy harvesting domain. The overview of current research and commercial solutions was performed for bands in ultra-high frequency range, which are unlicensed and where transmission is not limited by administrative arrangements. During the experiments with Powercast's receiver, the same bands as sources of electromagnetic field were taken into account. This power source is used for conducting radio-communication process and excess energy could be used for powering the extra electronic circuits. The paper presents elaborated prototype of energy harvesting system and the measurements of power harvested in ultra-high frequency range. The evaluation of RF energy harvesters for powering ultra-low power (ULP) electronic devices was performed based on survey and results of the experiments.