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Differentiate between the Clipping Circuits and Comparators?
What is basic difference between output from clipping and clamping circuit?
What do you mean by Schottky diode? How Schottky diode is employed for reducing storage time of diode switch?
What do you mean by the term transition capacitance?
A pulse of 10V amplitude and pulse width of 1msec is applied to the low pass RC circuit. R = 30 Kohm, C = 0.2 microfarad. Sketch the Output waveform.
Why RC circuits are chosen over the RL circuits for large time constant applications.
What is the fundamental difference between linear and non-linear wave shaping circuits.
Describe the concept of Global positioning system for navigation.
With the help of block diagram describe the operation of the conical scan tracking radar.
What is the simplest method to degrade the performance of the conical scanning tracking radar?
Why does a high PRF pulse Doppler radar need a much larger improvement factor than low PRF MTI radar, supposing comparable performance in detecting moving targets in clutter?
What is the importance of MTI radar? Explain its operation. How are moving targets recognized on a PPI display by using MTI radar?
Derive an expression for the blind speeds of MTI radar. Describe the effect of large wavelength and large PRF on lowest blind speed of target.
State the Doppler principle of velocity determination.
In brief describe different types of losses occurring in the radar systems.
Illustrate the operating frequency, power requirements and expected range of an actual radar system.
Enlist the factors which find out the detection range of the radar.
Show that the theoretical efficiency of the reflex Klystron is around 27.78%.
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.