The major drawback of frequency multipliers is that they have:

Related MCQs

• A major disadvantage of frequency multipliers is that they multiply the noise factor along with frequency.
• Resistive multipliers are more efficient as compared to reactive multipliers.
• Reactive multipliers have a disadvantage that they cannot be used at very high frequencies and they become less efficient.
• In the plot of reactance v/s frequency of a crystal oscillator, the reactance between series resonant frequency and parallel resonant frequency is:
• If a frequency multiplier has a multiplication factor of 10, then the increase in noise level due to frequency multiplication is:
• In a diode frequency multiplier, an input signal of frequency fo applied to the diode is terminated with                   at all frequencies other than required harmonic.
• In conventional amplifiers, a flat gain response is achieved at the cost of reduced gain. But this drawback can be overcome by using:
• The material used to fabricate IMPATT diodes is GaAs since they have the highest efficiency in all aspects.
• For a resistive frequency multiplier of multiplication factor 2, the maximum theoretical conversion efficiency is:
• With an increase in operating frequency, the background noise temperature: