مقـــــــــالات 2015-2020

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An efficient small size electromagnetic energyharvesting sensor for low-DC-powerapplications
(IET, 2017) Dibi, Zohir; Meddour, Fayçal
An efficient small size electromagnetic energy harvesting sensor for low-DC-power applications is proposed. Thesensor consists of two main parts: a dual polarisation square patch antenna used to collect the RF energy at a central frequencyof 2.45 GHz, and two voltage doublers rectifier circuit for the RF-to-DC conversion. The overall size of the design is 50 × 50 × 6.2 mm3. Firstly, the antenna is designed using high-frequency structure simulator software; followed by the design of therectifier circuit in advanced design system. After simulations, a sensor prototype is fabricated using F4B as the antennasubstrate. Measurements show that the sensor achieves a comparatively high maximum measured efficiency of 41% for apower level of −10 dBm. The sensor has a simple structure, it is compact sized, light weight, and presents a high RF-to-DCconversion efficiency for low-RF-power levels which can be used to charge different low-DC-power devices