is a single cavity klystron tube that operates as on oscillator by using a reflector electrode after the cavity.

Related MCQs

• The klystron tube used in a klystron amplifier is a                    type beam amplifier.
• The pattern of the reflector in a reflector antenna is called:
• Colpitts oscillator in the feedback section has an inductance of 4 mH and capacitors of 12 nH and 4 nH. Then the resonant frequency of Colpitts oscillator is:
• In a microwave oscillator, a load of 50+50j is connected across a negative resistance device of impedance -50-50j. Steady state oscillation is not achieved in the oscillator.
• A parabolic reflector used for reception with the direct broadcast system is 18 inches in diameter and operates at 12.4 GHz. The far-field distance for this antenna is:
• In Gunn diode oscillator, the Gunn diode is inserted into a waveguide cavity formed by a short circuit termination at one end
• A major disadvantage of klystron amplifier is:
• Klystron amplifiers have high noise output as compared to crossed field amplifiers.
• Reflector antennas are widely used to modify radiation patterns of radiating elements.
•              antennas have gain less than reflector antennas but have more lenient tolerance on surfaces.