A balun should have_____ - Microwave Communication

Electronics and Communication Engineering (ECE) : Microwave Communication - Quiz(MCQ)

A balun should have_____

high SWR at both ports

high SWR at input port and low SWR at output port

low SWR at both ports

low SWR at input port and high SWR at output

Correct Answer : Option (C) : low SWR at both ports

Explanation : Turn ratio is so selected as to give low SWR at both ports.

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In a microwave resistor the wall thickness is made as small as possible to

minimize capacitive effect

reduce inductance

have low value of R

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Correct Answer : minimize capacitive effect

In a klystron amplifier the transit time of electron passing the gap in the cavity should be

less than half cycle

less than one cycle

less than quarter cycle

more than quarter cycle

Correct Answer : less than quarter cycle

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the flow of electromagnetic energy is zero

the flow of electromagnetic energy is infinite

the flow of electromagnetic energy is 10% of maximum

the flow of electromagnetic energy is 50% of maximum

Correct Answer : the flow of electromagnetic energy is infinite