Paper Title
State of Art RF Energy Harvesting using Rectenna for Upcoming Smart Cities in India

Abstract
Because of the movement and prominence of remote specialized gadgets, further live of overflowing Radio repetition vitality from circumambient sources (advanced TV broadcasting portable administrations, and various fully completely different remote frameworks) area unit detached in our condition. Scattered EM waves are also changed over into electrical vitality. Keeping in mind the tip goal to assemble higher live of shut vitality from circumambient, fully completely different rectenna configuration approaches area unit used. Among them, Microstrip antenna is extensively used as results of low profile, reduced structure and simple to create. Ancient antenna having fully completely different states of fix outline accessible for specific applications anyway Microstrip antenna fix reception instrumentality having confinement better-known with receiving wire live and band repetition coordinating . This paper initiate with a dialog of assorted plans continue with some extent of configurability and consonant disposal of double band, multiband, cpw structures and band arrangements. At long last, smaller scale strip fix rectennas area unit contrasted and fully completely different techniques. Keywords - Rectenna, Wireless Power Transmission, Wireless Energy Harvesting, Rectenna Conversion Efficiency, Microstrip Patch Antenna,, Co Planer Waveguide, Rectifying Circuit, RF Signal and Wideband Rectennas.