reflex klystron characteristics

A high power microwave pulse of the order of megawatts can be generated in

• Traveling-wave tube

• Magnetron

• Reflex klystron

• Gunn diode

The cavity resonator

• is equivalent to an LC resonant circuit

• is equivalent to RL network.

• Produces a frequency which is independent of the cavity size.

• Has a low Q factor for narrow band operation

Microwave tubes are grouped into two categories depending on the type of:

• Power gain achieved

• Amplification method

• Eectron beam field interaction

• Construction methods

A major disadvantage of klystron amplifier is,

• Low power gain

• Low bandwidth

• High source power

• Design complexity

Klystron oscillators are most often used in the frequency range of

• 300 MHz to 3000 MHz

• 3000 MHz to 30000 MHz

• 30 MHz to 30000 MHz

• 10 MHz to 10000 MHz

In a Reflex klystron if the repeller voltage is reduced for a constant value of beam voltage, then the output power of successive modes will be;

• Maintained as constant

• Increasing nature

• Decreasing nature

• Independent of repeller voltage

Klystron operates on the principle of-

• Amplitude Modulation

• Frequency Modulation

• Velocity modulation

• Pulse Modulation

A space between two cavities in two cavity klystron is

• Drift space

• Free space

• Running space

• Normal space

The microwave sources used for a micrwave oven is

• Reflex Klystron

• Magnetron

• BWO

• IMPATT Diode

The two parts of a Klystron Power Supply are"

• Repeller voltage unit and Beam voltage unit

• High voltage unit and Modulation unit