CONTENTSINTRODUCTIONMICROWAVES MICROWAVES WORKING OPERATIONWORKING OPERATIONMPT METHODMPT METHODWIRELESS SWITCHINGWIRELESS SWITCHINGWORKING OF WIRELESS SWITCHINGWORKING OF WIRELESS SWITCHINGADVANTAGESADVANTAGES

INTRODUCTION The term wireless transmission stands for interchange of The term wireless transmission stands for interchange of

power, electricity, data or any other type of information.power, electricity, data or any other type of information. According to the electrical point of view, transmission According to the electrical point of view, transmission

lines are used for transmitting power supply.lines are used for transmitting power supply. But there is a major risk of electrical hazards like short But there is a major risk of electrical hazards like short

circuits, power failure, & breakdown of transmission circuits, power failure, & breakdown of transmission lines.lines.

So, we have suggested an innovative idea to overcome all So, we have suggested an innovative idea to overcome all these electrical hazards.these electrical hazards.

Just remove the transmission lines For this, we have used microwaves .For this, we have used microwaves .

MICROWAVES MICROWAVES We have implemented the principle of microwave ovens for our

receivers & transmitters. Microwaves have wavelengths approximately in the range of 30

cms (freq= 1 GHz ) to 1 mm (freq= 300 GHz ). The term microwaves generally refers to A.C. signals with

frequencies between 300 MHz & 300 GHz. The microwave range includes ultra high frequencies ( 0.3-3

GHz ), super high frequencies (3-30 GHz ), & extremely high frequencies (30-300 GHz ) signals.

We have used these microwaves for our wireless transmission.

WORKING OPERATION WORKING OPERATION Here, the power (electricity) generated at

sub-station goes to the transmitter, which works like the principle of microwave oven

This transmitter converts the electricity into microwaves & transmit them to our service towers

When these transmitted waves reach at the desired tower, (HOME TOWER), the receiver of home tower receives these microwaves & converts them into electricity.The electricity is utilized for our home appliances.

MPT METHODMPT METHOD MICROWAVE POWER TRANSMISION ( MPT ) method is

the use of microwaves to transmit power through outer space or the atmosphere without the need for wires.

The rectenna converted microwave power into electricity. In principle, rectenna is capable for very high conversion

efficiencies– over 90% in optimal circumstances. Most proposed MPT systems includes a phased array microwave

transmitter. They have advantage of being electrically steered and easier to

scale the necessary levels that a practical MPT system requires.

WIRELESS SWITCHINGWIRELESS SWITCHING

Now further we can use the microwaves received by our home tower for wireless switching also

By using wireless switching, we can make the whole transmission wireless....from sub-station to our home appliances.

There is no need of electrical wires to control our electric home appliances like fans, tube lights, washing machines etc…

WORKING OF WIRELESS WORKING OF WIRELESS SWITCHINGSWITCHING

for wireless switching, we use a TRANSCIEVER, a combo of transmitter & receiver, in our home tower.

This receives & transmits the microwaves directly to the transceiver of our hand held remote control.

Now we can control our home appliances by operating this hand-held remote control

Now the microwaves transmitted by this remote control are received by the receiver of our home appliance.

And thus, we can control our home appliances wirelessly.

SOME TECHNICAL DATASOME TECHNICAL DATA

Here we can use microwaves having frequency of 4 to 8 GHz , which is very well known as the C-band of microwave spectrum.

By using this frequency, the microwaves at our service tower can cover the area of approximately 4 to5 Kms.

So, here we can put our service towers at large distance & we can transmit power with less power loss compare to other transmission methods.

And microwave have efficiency over 90% as proven by the researches held at Reunion islands, Indian Oceans.

ADVANTAGES OF WPTNo wiresNo e-wasteNeed for battery is eliminatedEfficient energy transfer Harmless, if field strengths under safety levelsMaintenance cost is less

ANY ?????