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A 5.8 GHz inset-fed rectenna for RF energy harvesting applications

The technology of power transfer via source to receiver has been existing for more than a century. With the advancement in technology and development, new techniques have made Wireless Power Transmission practical which is more reliable, efficient and a fast method compared to traditional power transfer methods. In the presented design a Rectenna has been developed for 5.8 GHz frequency. The rectifier circuit has been implemented with the help of HSMS-285C Schottky diode. A Greinacher Voltage Doubler is adopted for the rectifier circuit. For the antenna the material Duroid with a relative permittivity of 2.2 has been used. Duroid possesses various benefits over other materials such as having low electrical loss and low moisture absorption due to which the efficiency of the antenna increases. ADS and HFSS are the design softwares which have been used to carry out all the simulations. The gain of the antenna was optimised to be 8.76 dB and after the impedance matching of the rectifier circuit the efficiency achieved was 74.38%. The design finds its usage under a variety of Wireless Power Tranfer systems.