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BITS Pilani
Hyderabad Campus
WIRELESS CHARGING OF
MOBILEPHONES USING
MICROWAVES
Mayank Garg
2013H140040H
Embedded System
B...
BITS Pilani, Hyderabad Campus
 NEED OF W.C.
 LIGHT & MICROWAVES
 THE MICROWAVE REGION
 TRANSMITTER DESIGN
 RECEIVER D...
BITS Pilani, Hyderabad Campus
 To make the recharging of the mobile phones independent
of their manufacturer and battery ...
BITS Pilani, Hyderabad Campus
 Wire+Less
How It Is Done……?
 Using Micro Waves
Mayank Garg Slide 4
What Is Wireless Charg...
BITS Pilani, Hyderabad Campus
 Because These Can Penetrate
Haze
Rain and Snow
Clouds
Smoke
Frequency Selection…!
S Band O...
BITS Pilani, Hyderabad Campus
Photons
Wavelength Of Light
EM waves
Mayank Garg Slide 6
LIGHT &Microwaves
BITS Pilani, Hyderabad CampusMayank Garg Slide 7
THE ELECTROMAGNETIC SPECTRUM
BITS Pilani, Hyderabad CampusMayank Garg Slide 8
BITS Pilani, Hyderabad Campus
 Here we have selected the license free 2.45 GHz ISM band for our
purpose
Mayank Garg Slide...
BITS Pilani, Hyderabad CampusMayank Garg Slide 10
BITS Pilani, Hyderabad CampusMayank Garg Slide 11
Transmitter And Receiver
BITS Pilani, Hyderabad CampusMayank Garg Slide 12
TRANSMITTER
The MAGNETRON is a self-contained microwave oscillator
that ...
BITS Pilani, Hyderabad CampusMayank Garg Slide 13
Magnetron
BITS Pilani, Hyderabad Campus
 Impedance Matching
 Transmission
Mayank Garg Slide 14
THE SLOTTED WAVEGUIDE ANTENNA
BITS Pilani, Hyderabad Campus
Rectenna:-
Mayank Garg Slide 15
Receiver
BITS Pilani, Hyderabad Campus
Schottky Barrier Diode
 Low Pass Filter
Mayank Garg Slide 16
RECTENNA
BITS Pilani, Hyderabad Campus
 Small Voltage Drop
 Higher Switching Speed
 Low Noise Index
Mayank Garg Slide 17
Why Sch...
BITS Pilani, Hyderabad CampusMayank Garg Slide 18
SENSOR
 Detection of Message Signal
 Triggering The Rectenna
 GSM Fre...
BITS Pilani, Hyderabad Campus
 A Schottky barrier diode is formed by connecting a metal
with a semiconductor.
 The semic...
BITS Pilani, Hyderabad Campus
 The need of different types of chargers by different
manufacturers is totally eliminated
...
BITS Pilani, Hyderabad Campus
 The transmitter and receiver also should be very powerful
devices as the distance increase...
BITS Pilani, Hyderabad Campus
 Thus this paper successfully demonstrates a novel method
of using the power of the microwa...
BITS Pilani, Hyderabad Campus
Thanks
Mayank Garg Slide 23
Link to connect with author:
http://www.slideshare.net/MayankGar...
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Wireless charging of mobilephones using microwaves

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Transcript of "Wireless charging of mobilephones using microwaves"

  1. 1. BITS Pilani Hyderabad Campus WIRELESS CHARGING OF MOBILEPHONES USING MICROWAVES Mayank Garg 2013H140040H Embedded System BITS-Pilani, Hyderabad Campus
  2. 2. BITS Pilani, Hyderabad Campus  NEED OF W.C.  LIGHT & MICROWAVES  THE MICROWAVE REGION  TRANSMITTER DESIGN  RECEIVER DESIGN  RECTENNA  PROCESS OF RECTIFICATION  SENSOR  ADVANTAGES  DISADVANTAGES  CONCLUSION Mayank Garg Slide 2 CONTENTS
  3. 3. BITS Pilani, Hyderabad Campus  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. NEED OF WIRELESS CHARGING Mayank Garg Slide 3
  4. 4. BITS Pilani, Hyderabad Campus  Wire+Less How It Is Done……?  Using Micro Waves Mayank Garg Slide 4 What Is Wireless Charging…?
  5. 5. BITS Pilani, Hyderabad Campus  Because These Can Penetrate Haze Rain and Snow Clouds Smoke Frequency Selection…! S Band Of Spectrum (ISM) Mayank Garg Slide 5 Why Microwaves…???
  6. 6. BITS Pilani, Hyderabad Campus Photons Wavelength Of Light EM waves Mayank Garg Slide 6 LIGHT &Microwaves
  7. 7. BITS Pilani, Hyderabad CampusMayank Garg Slide 7 THE ELECTROMAGNETIC SPECTRUM
  8. 8. BITS Pilani, Hyderabad CampusMayank Garg Slide 8
  9. 9. BITS Pilani, Hyderabad Campus  Here we have selected the license free 2.45 GHz ISM band for our purpose Mayank Garg Slide 9 THE MICROWAVE REGION
  10. 10. BITS Pilani, Hyderabad CampusMayank Garg Slide 10
  11. 11. BITS Pilani, Hyderabad CampusMayank Garg Slide 11 Transmitter And Receiver
  12. 12. BITS Pilani, Hyderabad CampusMayank Garg Slide 12 TRANSMITTER The MAGNETRON is a self-contained microwave oscillator that operates differently from the linear-beam tubes, such as the TWT and the klystron.
  13. 13. BITS Pilani, Hyderabad CampusMayank Garg Slide 13 Magnetron
  14. 14. BITS Pilani, Hyderabad Campus  Impedance Matching  Transmission Mayank Garg Slide 14 THE SLOTTED WAVEGUIDE ANTENNA
  15. 15. BITS Pilani, Hyderabad Campus Rectenna:- Mayank Garg Slide 15 Receiver
  16. 16. BITS Pilani, Hyderabad Campus Schottky Barrier Diode  Low Pass Filter Mayank Garg Slide 16 RECTENNA
  17. 17. BITS Pilani, Hyderabad Campus  Small Voltage Drop  Higher Switching Speed  Low Noise Index Mayank Garg Slide 17 Why Schottky Diode….???
  18. 18. BITS Pilani, Hyderabad CampusMayank Garg Slide 18 SENSOR  Detection of Message Signal  Triggering The Rectenna  GSM Frequency In INDIA (900MHz Or 1800MHz)
  19. 19. BITS Pilani, Hyderabad Campus  A Schottky barrier diode is formed by connecting a metal with a semiconductor.  The semiconductor material of metal generally is chosen from different metals such as molybdenum, chromium, platinum and tungsten.  This diode does not has minority carriers, its speed is much faster, so its reverse recovery time(Trr) is very short and shorter than 10 ns. Mayank Garg Slide 19 Schottky Diode
  20. 20. BITS Pilani, Hyderabad Campus  The need of different types of chargers by different manufacturers is totally eliminated  Lower risk of ELECTRICAL SHOCK or shorting.  Convenience  Wireless energy transfer can potentially recharge the mobile phones without chords Mayank Garg Slide 20 Advantages
  21. 21. BITS Pilani, Hyderabad Campus  The transmitter and receiver also should be very powerful devices as the distance increases.  Slower Charging.  Wireless transmission of the energy causes some drastic effects to human body, because of its radiation.  More costly.  Practical possibilities are not yet applicable as there is no much advancement in this field. Mayank Garg Slide 21 Disadvantages
  22. 22. BITS Pilani, Hyderabad Campus  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. Mayank Garg Slide 22 Conclusion
  23. 23. BITS Pilani, Hyderabad Campus Thanks Mayank Garg Slide 23 Link to connect with author: http://www.slideshare.net/MayankGarg25 https://www.linkedin.com/in/gargmayank http://www.researchgate.net/profile/Mayank_Garg6/ https://www.facebook.com/mayank17692?ref=hl

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