Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Electronics and Communication Engineering
»
Microwave Communication
In a vacuum tube, the transit time of electron between cathode and anode is important at
low frequencies
high frequencies
both (a) and (b)
frequencies which are neither very low nor very high
Correct Answer:
high frequencies
Explanation:
At high frequencies transit time is large as compared to the period of microwave signal.
← Previous Question
Next Question→
More Questions from
Microwave Communication
A duplexer is used to
Assertion (A): A line of length and short circuited at far end has an input impedance of infinity. Reason (R): A line of length and short circuited at far end behaves as a parallel resonant circuit.
A quarter wave line short circuited at load end behaves as
In the given figure the reflected voltage wave after first reflection is
If other parameter are constant, transmission loss at 5 GHz as compared to that at 0.5 GHz is
In Reflex Klystron oscillator the focussing electrode is at a high potential
Assertion (A): PIN diode can be used as attenuator and limiter. Reason (R): PIN diode has a thin intrinsic layer.
For the strip line in the given figure the capacitance per unit length =
A magnetron has a cylindrical cathode surrounded by an anode structure having cavities opening into interaction space by means of slots
A loss less line is terminated in a circular lines are E lines
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments