Power Harvesting Wireless Sensor from Ambient Microwaves for Mobile Charging

Abstract: This paper describes power harvesting for mobile charging from ambient microwaves. Battery life of mobile phone is always been a problem for manufacturers. People are complaining about their mobile�s battery life, that they don�t have long battery life and they have to charge their phone several times. Portable electronic devices are very popular now a days. As the usage of these portable electronic devices is increasing, the demands for longer battery life are also increasing. This wireless battery charger is expected to eliminate all the hassles with today�s battery technology. In this paper a new proposal has been made so as to make the recharging of the mobile phones is done� automatically as you talk in your mobile phone! This is done by use of microwaves. There are minimal additions, which have to be made in the mobile handsets, which are the addition of a sensor, a �rectenna� and a filter. With the above setup, the need for separate chargers for mobile phones is eliminated and makes charging universal. Thus the more you talk, the mobile phones is eliminated and makes charging universal. Thus the more you talk, the more is your mobile phone charged.

Keywords: Band pass filter,� Global for mobile communications Industrial, scientific and medical ,International telecommunication union, Slotted waveguide antenna