Coupler that is mostly used in balanced amplifiers to achieve the required performance is:

Related MCQs

• For a Wilkinson power divider of insertion loss L and the coupler is matched to the external circuitry, and then the gain of the coupler in terms of insertion loss is:
• Klystron amplifiers have high noise output as compared to crossed field amplifiers.
• Bandwidth of balanced amplifier can be an octave or more, but is limited by the bandwidth of the coupler.
• 1 MICROWAVE PASSIVE COMPONENTS: DIRECTIONAL COUPLER, POWER DIVIDER, MAGIC TEE ATTENUATOR, RESONATOR
• Noise equivalent temperature of Wilkinson coupler having a gain of 1/2L is given as:
• 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.
• High gain is not achievable at microwave frequencies using BJT amplifiers because: