Implement a wireless electric energy transmission system through the magnetic resonant coupling of the near field for low-power consumption devices
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Abstract
This paper proposes an alternative wireless power supply method for low-power consumption devices. For the design of the antennas responsible for the transmission of energy, microstrip lines were used on an FR4 substrate (Flame Retardant 4) based on mathematical methods tested from other research contributions. Therefore, integrated circuits with MMIC (Monolithic Microwave Integrated Circuits) technology are included for generating radio-frequency as an energy source from 16 MHz to 23 MHz. In the reception phase, a three-stage doubling voltage circuit is required to rectify and amplify the transmitted signal. The results of the implementation of the system indicate an efficiency between 20% and 30% for transmission distances up to 90 millimeters without obstacles. The performance decreases between 0% and 6.67% when crossing materials such as agglomerate, plastic, glass, expanded polystyrene, fabric, and wood. However, it loses performance with metal.
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