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Starting from first principles derive an expression for power radiated by half wave dipole?
Describe why a short dipole is also known as elemental dipole?
Compute the maximum effective aperture of a 1/2 antenna?
Explain Broad side array in detail. Describe End fire array with detailed explanation.
What do you mean by meant by reciprocity Theorem? Explain duality of antenna in detail.
Explain Aperture efficiency with detailed explanation. What do you understand by front to back ratio?
Describe in detail the 723 IC general purpose voltage regulator.
Write down some of the examples of monolithic IC voltage regulators.
Write down the applications of 555 timer in monostable mode of operation.
What do you mean by a sample and hold circuit? Explain where it is used? Describe sample period and hold period in detail.
Analyze the Gilbert’s four quadrant multiplier cell with a neat and well labelled circuit diagram. Write down its applications.
Explain the purpose of having a low pass filter in PLL. What do you mean by a compander IC? Explain it with some suitable examples.
For perfect lock, what must be the phase relation between incoming signal and VCO output signal?
Write down the applications of comparator? What do you mean by a Schmitt trigger?
Write down some of the non – linear applications of op-amps?
Describe supply independent biasing using Zener-referenced bias circuit. Also, sketch a temperature compensated Zener-reference source.
Design the circuit of a Widlar current source and write down the expression for its output current?
Write down the two stable states of bistable Multivibrator.
Write down the expression of fmax with respect to resolving time.
Explain why monostable Multivibrator is known as gatting circuit?
Describe about collector coupled astable Multivibrator in detail with suitable digram.
Describe how we can obtain a DC equivalent circuit of the amplifier?
Write down the advantages of stagger tuned amplifier.
Describe Clapp’s oscillator and deduce an expression for frequency of oscillation. Also describe how frequency stability can be improved Clapp’s oscillator.