This WIRELESS CHARGER enables you to charge your phone anywhere anytime. The more you talk the more your phone is charged!

2.  WIRELESS
CHARGER
USING
MICROWAVES….

3. CONTENTS:
1.INTRODUCTION
2.TRANSMISSION DESIGN
3.RECEIVER DESIGN
4.PROCESS OF DESIGN
5.SENSOR CIRCUITRY
6.CONCLUSION
7.REFERENCES

4. INTRODUCTION:
The main objective of this current proposal is to make the
recharging of the mobile phones independent of their manufacturer
and battery make.
 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!
The microwave signal is transmitted from the transmitter along
with the message signal using special kind of antennas called slotted
wave guide antenna at a frequency is 2.45 GHz
.

5. ELECTROMAGNETIC SPECTRUM:
The electromagnetic spectrum is the range of all possible frequencies
of electromagnetic radiation. The "electromagnetic spectrum" of an object is
the characteristic distribution of electromagnetic radiation emitted or absorbed
by that particular object.
The electromagnetic spectrum extends from low frequencies used for
modern radio communication to gamma radiation at the short-wavelength
end, thereby covering wavelengths from thousands of kilometers down to
a fraction of the size of an atom .
 It is for this reason that the electromagnetic spectrum is highly studied for
spectroscopic purposes to characterize matter. The limit for long wavelength is
the size of the universe itself, while it is thought that the short wavelength limit
is in the vicinity of the Planck length, although in principle the spectrum is
infinite and continuous .

6. ELECTROMAGNETIC SPECTRUM:

7. The Microwave region:
 Here we have selected the license free 2.45 GHz
ISM band for our purpose.

8. Designation Frequency range
L Band 1 to 2 GHz
S Band 2 to 4 GHz
C Band 4 to 8 GHz
X Band 8 to 12 GHz
Ku Band 12 to 18 GHz
K Band 18 to 26 GHz
Ka Band 26 to 40 GHz
Q Band 30 to 50 GHz
U Band 40 to 60 GHz
Here we are going to use the S band of the Microwave Spectrum:

9. TRANSMITTER DESIGN:
The MAGNETRON (A) is a self-
contained microwave oscillator that
operates differently from the linear-
beam tubes, such as the TWT and the
klystron. View (B) is a simplified
drawing.

10. MAGNETRON:

11. RECEIVER DESIGN

12. RECTIFICATION PROCESS:
Microwave energy transmitted from space to
earth apparently have the potential to provide
clean electrical power on a very large scale.
The aim of the study to make a low cost power
rectifier for low & high power levels at a
frequency of 2.45GHz.
The schottky diode microwave rectifying
circuit has the efficiency is greater than 90%.

13. ADVANTGes:
It would be convenient not having to worry
about charging or changing batteries and still
having a working mobile.
It will charge up the batteries which can save
time and money in a long run for general
public.

14. 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.
A novel use of the rectenna and a sensor in a
mobile phone could provide a new dimension in
the revelation of mobile phone.

15. REFERENCES:
1.www.1000projects.com
2.www.fullinterview.com
3.www.chetanasprojects.com
4.“Telecommunication Switching System on
Networks”. T. Vishvsnathan

16. Thankyou…!