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ppt for wireless charging of mobile phones using microwaves

powerpoint ppt download
With mobile phones becoming a basic part of life, recharging mobile phone batteries has always been a problem. Mobile phones vary in their talk time and in waiting for the battery according to their manufacture and batteries. All these phones, regardless of manufacturer and batteries, must be recharged after the battery is exhausted.

The main objective of this current proposal is to make the recharge of mobile phones independent of its manufacturer and battery. This document has presented a new proposal for the recharge of the mobile phones is done automatically while talking on your mobile phone. This is done by using microwaves. The microwave signal is transmitted from the transmitter together with the message signal using a special type of antennas called slotted waveguide antennas at a frequency of 2.45 GHz.

There are minimal additions, which must be made on mobile phones, which are the addition of a sensor, a rectenna and a filter. With the above configuration, the need for separate chargers for mobile phones is eliminated and makes the charging universal. So the more you talk, the more your mobile phone charges! With this proposal, manufacturers could eliminate the talk time and standby time of the battery according to the specifications of your phone.

Introduction of wireless charging of mobile phones with microwaves

The basic addition to the mobile phone will be correct. A rectena is a rectifying antenna, a special type of antenna that is used to directly convert microwave energy into DC electricity. Its elements are usually arranged in a mesh pattern, which gives it a distinct appearance to most antennas. A simple rectena can be constructed from a Schottky diode placed between antenna dipoles. The diode rectifies the current induced in the antenna by the microwaves.

Rectenna are highly efficient in converting energy from microwave to electricity. In laboratory settings, efficiencies greater than 90% have been observed regularly. Some experiments have been performed with inverse rectangles, converting electricity into microwave energy, but the efficiencies are much lower, only in the 1% area. With the advent of nanotechnology and MEMS, the size of these devices can be reduced to the molecular level.

The theory has been put forward that similar devices, reduced to the proportions used in nanotechnology, could be used to convert light into electricity at much greater efficiencies than are currently possible with solar cells. This type of device is called an optic rectus.

Theoretically, high efficiencies can be maintained as the device is reduced, but experiments funded by the United States National Renewable Energy Laboratory have only achieved up to 1% efficiency by using infrared light. Another important part of our receiver circuits is a simple sensor.

Marked Categories : problem of seminar project wireless charging of mobiles, wireless charging of mobile phone using microwave, ppt wireless charging of mobile phones using microwaves, wireless charging of mobile phone using microwaves,

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