Klystron amplifiers have high noise output as compared to crossed field amplifiers.

Related MCQs

• The klystron tube used in a klystron amplifier is a                    type beam amplifier.
• In crossed field tubes, the electron beam traverses the length of the tube and is parallel to the electric field.
•                      is defined as the ratio of input signal to noise ratio to the output signal to noise ratio.
• The equivalent noise temperature of a network given the noise figure of the network or system is:
• Expression for noise of a two port network considering the noise due to transmission line and other lossy components is:
•                  is a single cavity klystron tube that operates as on oscillator by using a reflector electrode after the cavity.
• A major disadvantage of klystron amplifier is:
• High gain is not achievable at microwave frequencies using BJT amplifiers because:
• Distributed amplifiers offer very high
• Gain of power amplifiers                      with increase in operating frequency.