STUPIDSID
1(a)
Explain the Hazards of Electromagnetic Radiation.
5 M
1(b)
Explain the radiation mechanism of antenna with single wire system.
5 M
1(c)
Explain the use of Richard transformation and Kurodas Identity in RF filter design
5 M
1(d)
Derive an expression for arry of two isotropic sources with same amplitude and in phase.
5 M
2(a)
Explain the RF behavior of resistor, capacitor and inductor.
10 M
2(b)
Discuss the design procedure for filter using image parameters method.
10 M
3(a)
Design a maximally flat LPF with a cut off frequency of 2 Ghz. The generator and load impedance is 50&Omega
10 M
3(b)
Derive an expression for array factor of N element linear array, where all elements are equally fed and spaced. Also find the expression for the position of principle maxima, 's and secondary maxima.
10 M
4(a)
A radio link has 15 watt transmitter connected to an antenna of 2.5 m2 effective aperture at 5 Ghz. The receiving antenna has an effective aperture of 0.5 m2 and is located at a 15 km line of sight distance from transmitting antenna. Assume lossless antennas. Find power delivered to the receiver.
10 M
4(b)
Derive an expression for E field and H field of infinitesimal dipole antenna.
10 M
5(a)
What is the folded dipole Antenna? Draw its typical structure and explain working mechanism. Give its advantages.
10 M
5(b)
What is Dolph-Chebyshev array? Explain the steps involved in design of Dolph-chebyshev array.
10 M
Write short notes
6(a)
Ground effects on Antenna
5 M
6(b)
Log periodic Antenna
5 M
6(c)
Loop antenna
5 M
6(d)
Horn antenna
5 M
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