Design of RF Energy Harvesting Circuit Using π Matching Network for Low Power Devices

Abstract

Author proposed a different matching network in this paper to reduce the losses between a receiving antenna and RF to DC convertor by incorporating a π matching network. RF energy harvesting is increasing in demand to charge the low power device without using any external power supply. In this proposed harvesting circuit, the output voltage has been increased up to 5.9 V, which is sufficient enough to charge any low power devices as there battery capacity is only 50 uAh. Simulation results represent that by using π matching network of high-Q, output voltage of harvesting circuit increases and it becomes more sensitive with respect to input signal frequency and value of elements used.  
Keywords: Radio frequency energy harvesting, matching network, RF to DC power conversion  
Cite this Article Garima Bajpai, Umesh Barandiya. Design of RF Energy Harvesting Circuit Using π Matching Network for Low Power Devices. Journal of Instrumentation Technology and Innovations. 2016; 6(3): 29–32p.