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Ambient RF energy harvesting trial in domestic settings

机译：家用环境射频能量收集试验

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摘要

This study investigates the feasibility of ambient radio frequency (RF) energy harvesting for powering low-power electronic devices, in domestic environments. An RF spectrum survey was carried out in a variety of locations around the city of Bristol, UK between 500 MHz and 6 GHz. Locations are limited to indoor residential environments, and as a comparison an office. The measurement setup consists of an omnidirectional, broadband, discone antenna and a handheld spectrum analyser. On the basis of the measured power consumption of a number of low-power electronic devices and the analysed results, the required harvesting time to power each device is calculated. The results show that in order to harvest enough energy to power-up a small calculator (2 μW) for 1 s, an antenna array covering 1.7-2.5 GHz with effective area of 1 m requires on average about 10 min of harvesting.
机译：这项研究调查了在家庭环境中为低功率电子设备供电的环境射频（RF）能量收集的可行性。在英国布里斯托尔市周围500 MHz至6 GHz之间的多个位置进行了RF频谱调查。地点仅限于室内居住环境，而办公室则仅限于此。测量设置包括全向，宽带，碟形天线和手持式频谱分析仪。根据许多低功率电子设备的测量功耗和分析结果，计算为每个设备供电所需的采集时间。结果表明，为了收获足够的能量来为小型计算器（2μW）供电1 s，覆盖1.7-2.5 GHz，有效面积为1 m的天线阵列平均需要大约10分钟的收获。

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