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GTU Electronics and Communication Engineering (Semester 6)
Antenna And Wave Propagation
December 2014
Antenna And Wave Propagation
December 2014
1 (a)
Define Antenna and enlist its functions. Compare Antenna and Transmission
Line.
7 M
1 (b)
Define Oscillating Dipole. Derive E and H field components due to Oscillating
Dipole in spherical co-ordinate systems.
7 M
2 (a)
Enlist applications of reciprocity theorems to antennas. Briefly explain any two
Applications.
7 M
2 (b)
Briefly explain end-fire array with necessary equations.
7 M
2 (c)
Write short note on typical sources of error in antenna measurement.
7 M
3 (a)
Briefly explain any two antennas for special applications.
7 M
3 (b)
Write short note on space wave propagation.
7 M
3 (c)
Write short note on log periodic antennas.
7 M
3 (d)
Explain detailed structure of Ionosphere.
7 M
4 (a)
List various types of horn antennas. Briefly explain slot antenna with necessary figure.
7 M
4 (b)
With neat sketches briefly explain patch antennas. Also write its applications.
7 M
4 (c)
State and explain Babinets principle with example.
7 M
4 (d)
With neat sketches briefly explain reflector lens antennas. Also write its
Applications.
7 M
5 (a)
Define the terms Antenna Temperature, Beam width, HPBW and Beam
Efficiency.
7 M
5 (b)
Write short note on antenna feeding methods.
7 M
5 (c)
State and explain Schelkunoff theorem.
7 M
5 (d)
Write short note on Cassegrain feed system with neat figure.
7 M
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