Distributed amplifiers offer very high

Related MCQs

• Klystron amplifiers have high noise output as compared to crossed field amplifiers.
• In distributed amplifiers, all the FET stages in the amplifier are connected in series to one another.
• Magnetrons are microwave devices that offer very high efficiencies of about 80%.
• High gain is not achievable at microwave frequencies using BJT amplifiers because:
• Gain of power amplifiers                      with increase in operating frequency.
•                        amplifiers are linear circuits, where the transistor is biased to conduct over the entire range of the input signal cycle.
• Power amplifiers in the increasing order of efficiency is:
• Behavior of a transistor in power amplifiers is unpredictable at all input signal levels.
• In conventional amplifiers, a flat gain response is achieved at the cost of reduced gain. But this drawback can be overcome by using:
• Coupler that is mostly used in balanced amplifiers to achieve the required performance is: