On average, a medium-sized satellite consist of almost 500 sensors where powering these sensors in space in such an unreachable environment is critical. Backing this, a compact energy harvester for powering up distant sensors is discussed here is the purpose of this paper. This is in line with the geostationary satellite-powered using the available electromagnetic energy on the satellite panels in space.,The designed rectenna makes use of a compact wideband receiving antenna operating at the targeted frequency band from 8 to 18 GHz. It also consists of a simple dual diode rectifier topology with a matching circuit, bandpass filter and a resistive load to convert the received radio frequency energy into usable direct current (DC) voltage.,The rectenna measurement is performed using three different configuration setups. This shows that a maximum DC voltage of 1.8 V and 5-10 mV is harvested from rectifier and rectenna (includes antenna and rectifier) when 20 dBm power is transmitted from the transmitting antenna operating at X and Ku band. This makes the rectenna feasible to power wireless sensors in a structural health monitoring system.,The measurements are performed by considering a real-time environment in space in terms of the distance between the transmitting and receiving antenna, which depends on the far-field of the transmitting antenna in a satellite.

中文翻译：

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用于实现自供电结构健康监测系统的能量收集无线传感器

平均而言，一颗中型卫星由近 500 个传感器组成，在这种无法到达的环境中为这些传感器供电至关重要。为此，本文讨论了一种用于为远程传感器供电的紧凑型能量收集器。这与使用太空卫星面板上的可用电磁能量为地球同步卫星供电的做法是一致的。设计的整流天线利用了一个紧凑的宽带接收天线，工作在 8 至 18 GHz 的目标频段。它还包括一个简单的双二极管整流器拓扑，带有匹配电路、带通滤波器和电阻负载，用于将接收到的射频能量转换为可用的直流 (DC) 电压。使用三种不同的配置设置执行整流天线测量。这表明，当从在 X 和 Ku 频段工作的发射天线发射 20 dBm 功率时，从整流器和整流天线（包括天线和整流器）获得 1.8 V 和 5-10 mV 的最大直流电压。这使得整流天线可以为结构健康监测系统中的无线传感器供电。,根据发射和接收天线之间的距离考虑空间中的实时环境进行测量，这取决于远场卫星中的发射天线。