07-01-2011, 02:01 PM
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MICROWAVE
Electromagnetic wave
Frequency ranging from 0.3GHz to 300GHz
Wavelength is as long as one meter to as short as one millimeter .
It can go through ionosphere
RADAR , Satellite ,Mobile communication
Principle Of Amplification
The power of the microwave is increased by transferring the energy of the excited electrons or atoms to the microwave by different methods
Types of Microwave Amplifiers
Klystron
Magnetron
Travelling wave tubes
Crossed Field Amplifiers
Maser
Klystrons
Velocity modulation
Two cavity Klystrons