Wireless Power Transfer using microstrip antenna assigned with graded index lenses for WSN

Wireless Power Transfer (WPT) systems are considered as sophisticated alternative for modern day wired power transmission. In long range WPT systems, power is transmitted through microwaves. Highly directive antenna systems assure effective power transmission. This paper presents a Micro-strip rectangular patch antenna incorporated with meta-material based graded refractive index lens. Using micro-strip antenna considerably reduces the size of WPT systems as compared to other microwave antenna. In this paper, the WPT system is modeled for 2.45 GHz frequency. In addition, the antenna incorporated with meta-material lens will enhance the amount of transferred power to Wireless Sensor Network (WSN) with mitigated radiation losses.