Development of broadband EMF sensors for energy harvesting using RF and microwave signals

Telecommunication Tower has been built for giving the wide coverage on UHF for communication devices. The radiation power from the tower gives awareness that radiation by the cellular tower might affect the human health. Hence, this contribution leads to invention of EMF Meter exists specifically focus on power radiation which is known as RF power meter. The RF power meter is use to detect broadband frequency of UHF in ranging from 300 MHz to 3 GHz radiation power. Within the UHF range, Radio Energy Harvesting technology was introduced. This gives the innovative opportunity of Radio Energy harvesting application on RF power meter. By combining both technologies, the RF power meter could detect the power radiation while harvesting RF energy at the same time. The solution provide on having devices able to power up with less consumption on power supply. In this project, RF power meter was programmed by Arduino and RF energy harvesting was designed. The RF power meter able to achieve 98.6% accuracy and at the input power level of-10 dBm, the measured result shows a RF to DC conversion efficiency achieving 63.3% with the corresponding DC output voltage of 2.11 V.