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Exam (elaborations)
Electronics And Communication Engineering
ELECTRONICS AND COMMUNICATION ENGINEERING 
ANTENNAS AND WAVE PROPAGATION 
TWO MARK QUESTIONS 
1. Define an antenna. 
Antenna is a transition device or a 
transducer between a guided wave and a free space wave 
or vice versa. Antenna is also said to be an impedance 
transforming device. 
2. What is meant by radiation pattern? 
Radiation pattern is the relative distribution 
of radiated power as a function of distance in space .It is a 
graph which shows the variation in actual field st...