1. SUBHANKARGHOSH(16900313109)
SUBHAJIT CHOWDHURY
(16900313107)
Under the Guidance of
PROF. SANJIB MITRA
Department Of Electronics and Communication Engineering
ACADEMY OF TECHNOLOGY
10/07/16 1AOT-ECE

2. Outline
Introduction
History
Microwave Power Transmission
Rectenna
Applications
Advantage & Disadvantage
Safety Concern
Conclusion
10/07/16 2AOT-ECE

3. INTRODUCTION
Nikola Tesla work in the early 20th century
Transfer of energy from a source to a receiver done by Physical
connection.
Transfer of power over the microwave band is known as MPT
Wire- less device, capable of being remotely powered
Rectenna is used to receive the power
10/07/16 3AOT-ECE

4. Nikola Tesla
Innovations:
Alternating current
Wardenclyffe
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5. How the power gets to Earth
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6. Microwaves
Beam Frequency
Retro directive beam control capability
Power level is well below international safety standard
Is extensively used for point-to-point telecommunications
Easily focused into narrower beams than radio waves
10/07/16 6AOT-ECE

7. Microwave vs. Laser Transmission
Microwave
More developed
High efficiency
Not dangerous
Cause interference
Laser
Recently developed
Low efficiency
Dangerous
10/07/16 7AOT-ECE

8. Block Diagram Of MPT
10/07/16 8AOT-ECE

9. This is the
AC power
supply
AC Power
Outlet
Power
Conversion
This
converts the
AC power to
a microwave
power signal
Microwave
Transmitter
This
transmits the
microwave
power signal
10/07/16 9AOT-ECE

10. Rectenna
Power
Conversion
Power
Regulator
Remote
Device
This converts the
microwave power
signal to DC power
signal
This regulates
DC voltage
level
Remote Device uses
this DC power the
same way it uses a
battery
10/07/16 10AOT-ECE

11. From the Satellite
Microwave transmitter
Received at a “rectenna”
Laser can also be used.
10/07/16 11AOT-ECE

12. Rectenna (Rectifier + Antenna)
Microwaves efficiency
More Space
Beam falling on the rectenna
10/07/16 12AOT-ECE

13. 10/07/16 13AOT-ECE

14. Rectenna Specifications
Bandwidth of rectenna
Rectenna impedance matching
Rectenna testing
Rectenna Efficiency
10/07/16 14AOT-ECE

15. Rectenna Design
Wire mesh
reflector
Magic carpet
10/07/16 15AOT-ECE

16. 10/07/16 16AOT-ECE

17. Applications
Electronic portable devices
Electric Vehicles
10/07/16 17AOT-ECE

18. Applications contd..
Aerial Vehicles and Solar Power Satellites(SPS 2000)
Satellite solar-power
model
10/07/16 18AOT-ECE

19. Rectenna Development
Project is Developed in
Japan
low cost model
8 Countries
10/07/16 19AOT-ECE

20. Advantages
Eliminates cables uses
Mobile uses
Less Cost
Broader connectivity
10/07/16 20AOT-ECE

21. Disadvantages
Factors as weather and physical objects
Longer distances
Rectenna Issues-
a. Size
b. Location
c. Health Issues
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22. Safety Concern
Human exposure
Magnetic beam must be concentrated on the antenna
the charging of the EV
10/07/16 22AOT-ECE

23. Conclusion
“You don’t need cables, pipes, or copper wires to receive
power. We can send it to you like a cell phone call – where
you want it, when you want it, in real time. We can expect
with certainty that in next few years wonders will be
brought by its applications if all the conditions are
favorable”.
-- Dr. Neville of NASA
10/07/16 23AOT-ECE

24. 10/07/16 24AOT-ECE