The document outlines a seminar on wireless electricity transmission, focusing on microwave power transmission techniques and rectenna design, inspired by Nikola Tesla's early experiments. It discusses the advantages and disadvantages of wireless electricity transmission, including system losses of wired transmission and the efficiency of microwave beams. It concludes that governmental support and private sector involvement are necessary for the realization of wireless electricity transmission.

1. SEMINAR ON
Wireless Electricity
Transmission

2. Outline
• Introduction.
• Background.
• Microwave Power Transmission And Reception
Technique.
• Current Design of Rectenna.
• Advantage of Using Microwaves For Wireless
Electricity Transmission.
• System Losses Of Wired Electricity Transmission.
• Advantages Of Wireless Electricity Transmission.
• Disadvantages Of Wireless Electricity Transmission.
• Issues And Conclusions.

3. •Wireless Electrical Transmission as the name shows
is the Transmission of Electrical Energy without wires
to any place on Earth. Even to the most remote
areas.
•The Electrical energy is first converted into
Microwaves then beamed to a Geosynchronous
satellite and Beamed back on Earth where needed
and converted back to electrical energy. Where it can
be used to power Electrical Equipments.
Introduction

4. Background
Nikola Tesla (1856-1943) The Father of Wireless
Electricity.
Tesla's many inventions include
high-frequency generators
(1890) and the Tesla coil
(1891), a transformer with
important applications in the
field of radio communications

5. Innovations
• Alternating Current.
• Wireless Power Transmission Experiments at
Wardenclyffe.
In 1899 Nikola Tesla was able to
light lamps over 25 miles away without using wires. Also
the high frequency current of tesla coil, could light lamps
filled with gas (like Neon).
1940s to Present
• World war II developed ability to convert energy to
microwave using magnetron but no method to convert
microwave back to electricity.
• In 1964 William. C Brown demonstrated a Rectenna
which would convert Microwaves Power to Electricity.

6. Wireless Electricity Transmission And Reception
Using Microwaves

7. Microwaves generated using the Magnetron from the base station can be
received at any location on Earth with the help of Geosynchronous
Receiving and Transmitting Satellites.
Advantages of Low Orbit And Geosynchronous Satellites:
* These satellites will use microwaves to beam power to the receiving
station and mobile power receiving devices.
* Since The low Orbit Microwave Beam Would spread less, the ground
based Rectenna could be smaller.
Microwave Power Transmission And Reception Technique
Recent Developments Suggest that power could be sent to Earth
using Laser also.
The power can be received at Rectenna which will be located on
Earth, Comprising a mesh of dipoles and diodes for absorbing
microwave energy from a transmitter and converting it back into
electrical power. 95% of the Microwave Beam will fall on the
Rectenna.
Location of Rectenna: The Rectenna should be located near
population center to facilitate the transmission of electricity.

8. Rectenna Design
• 5000 Mw Receiving Station (Rectenna).
This station is about a Mile and Half long.
• The Rectenna Would be Visually Transparent so that it
would not interfere with Plant life.

9. Advantages of Using Microwaves for
Wireless Electricity Transmission
• High Efficiency Up to 85% .
• Power Level is Well Below International safety standard.
• Beam is far below the lethal levels of concentrations even
for a prolonged exposure.
• Frequency is up to 2.45 GHz of the Micro Beam.
• Retro-directive Beam Control capability.
• No Air Or water Pollution is Created.
• During Generation power can be Beamed to the location
Where it is needed.
• We don’t have to invest in a large Electrical Grid.
• If Microwave Beams Carrying power could be beamed
uniformly over the earth they could power cell phones, but
the antenna length should be 25-30 cm square.

10. System Losses Of Wired Electricity Transmission
36.3GJ Electricity Grid
10%
Distribution/
Transmission
32.7 GJ
Customer
Power
Supply 40%
19.6 GJ
We lose, on average, 80% of the
energy we extract when using it for
electronic products

11. Advantages Of Wireless Electricity Transmission
• Power Loss is very less as compared to Wired
Electricity Transmission.
• There is no need of Transmission Lines.
• Health and Environmental Experiments claim that
Wireless Electricity Transmission Using Microwaves
and laser is safe.

12. Disadvantages of wireless Electricity Transmission
• The Size of Rectenna will be Massive.
• Would Require a Network of hundreds of
satellites.
• The Cost of this Prototype Project Will Be
$74 Billion approx.
• Interference with other Electronic Devices
will be there.

13. Issues
• More Reliable Than Ground Based Solar Power
Generation.
• More Reliable Than Wired Electricity Transmission.
• In Order To Have Wireless Electricity Transmission To
Become a Reality, Following Things Have To Happen:
#Government Support.
#Cheaper Launch Prices.
#Involvement Of The Private Sector.
• Who will Fund?
NASA: Funding The research, in charge of space flight for
the United States Of America.
NASA: Would be launching the satellites and doing
Maintenance.
Conclusion

14. THANK YOU TO
ALL OF YOU