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Distinguish between fixed and variable attenuators.
List all the methods which are used to carry out measurement of Low, Medium and high microwave power.
Describe the principle of working of a Rectangular waveguide resonator.
What do you mean by Directional coupler? Illustrate the construction of 2-hole directional coupler.
What do you mean by Smith chart? Write down its application?
What do you mean by Faradays rotation? Give the construction and working process of devices based on this phenomenon.
What are the different frequency modes in which Gunn Effect oscillator can be made to oscillate? Describe each mode in detail.
Describe the physical explanation of read diode and the avalanche multiplication procedure.
What do you mean by Avalanche transit time Devices?
Describe some modes of operation of Gunn diode with the keep of sketches.
Compare the main characteristics of PIN diode and Tunnel diode.
What do you mean by velocity modulation? How is it distinct from normal modulation? Describe how velocity modulation is employed in klystron amplifier.
Ordinary low frequency circuit analysis is not sufficient to explain the electrical phenomenon-taking place at microwave frequencies, explain why?
What is the basic principle of operation of the BARITT diode?
Describe the use of PIN diode as a modulator.
Describe the fundamental needs of tunneling phenomenon in the Tunnel diode.
Derive an expression for the maximum possible theoretical effectiveness of a reflex Klystron.
Illustrate the expression for efficiency of two cavity Klystron amplifier.
Make a list of significant applications and the corresponding characteristics of the microwave.
Enlist the benefits of microwave frequencies over the lower frequency waves.
Describe the construction and working of a multicavity klystron.
What is the main purpose of strapping in the magnetron?
A given silicon Avalanche photodiode consists of a quantum efficiency of 65% at a wavelength of 900nm. Assume 0.5uW of optical power generates a multiplied photocurrent of 10uA. Determine multiplica
Compare the major characteristics of Pin photodiode and APD.