Dec 16, 2019
A vacuum tube that amplifies microwaves by controlling the speed of electrons flowing in a straight line with the help of a magnetic field is called Klystron. An amplifier that uses the klystron vacuum tubes to amplify microwave frequency signals is called a Klystron Power Amplifier. These amplifiers are used for very high power microwave applications between 300 MHz and 400 GHz. They are ideal for use in various industries like satellite, radar, wideband high-power communication, medical, high-energy physics etc.
A klystron uses the kinetic energy of an electron beam for the amplification of a high-frequency signal. These amplifiers make use of the transit-time effect by varying the velocity of an electron beam. They include one or more resonant cavities, which control the field around the axis of the tube. The signal of the amplifier is amplified by the energy of the electron beam and the amplified signal can be received from a cavity at the other end of the tube.
These are of two types
Advantages of Klystron Amplifiers
Few practical applications of Klystron Amplifiers
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