09-02-2013, 02:16 PM
WIRELESS CHARGING USING MICROWAVES
WIRELESS CHARGING.ppt (Size: 361.5 KB / Downloads: 151)
INTRODUCTION
The main objective of this current proposal is to make the recharging of
the mobile phones independent of their manufacturer and battery make.
The additon of a sensor ,a rectenna and a filter.The message signal using special kind of antennas called slotted wave guide antenna at a frequency is 2.45GHZ.Thus the more you talk themore is your mobile phone charged
THE ELECTROMAGNETIC SPECTRUM:
The electromagnetic spectrum
of an object is the characteristic
distribution of electomagnetic
radiation emitted or absorbed by
that particular object.
These are divided into two types:
1.Electric field
2.Magnetic field
MICROWAVE REGION OF THE ELECTROMAGNETIC SPECTRUM
The frequency selection is important aspect in transmission.
Here we have selected the license free 2.45GHZ.
The next higher part of the radio electromagnetic spectrum where the frequencies are above 30GHZ and below 100GHZ are called millimeter waves.
RECEIVER DESIGN:
A rectenna is also scanning an tracking array in star wars universe.
Some experimentations has been done with inverse rectennas.
It converts electricity into microwave
Energy and efficiency is much lower.
The process of Rectification:
The aim of this study is to make a low cost power rectifier for low and high power levels at a frequency of 2.45 GHz with good efficiency of rectifying operation. The objective also is to increase the detection sensitivity at low levels of power
APPLICATIONS:
This technology can potentially be used in a large variety of applications, including consumer, industrial, medical and military. Its aim is to reduce our dependence on batteries.
Further applications for this technology include transmission of information it would not interfere with radio waves and thus could be used as a cheap and efficient communication device without requiring a license or a government permit.
CONCLUSION:
Thus this paper successfully demonstrates a novel method of using the power of the microwave to charge the mobile phones without the use of wired chargers. Thus this method provides great advantage to the mobile phone users to carry their phones anywhere even if the place is devoid of facilities for charging. A novel use of the rectenna and a sensor in a mobile phone could provide a new dimension in the revelation of mobile phone.