Electronics and Communication Engineering - Electromagnetic Field Theory - Discussion
Discussion Forum : Electromagnetic Field Theory - Section 1 (Q.No. 26)
26.
Consider a loss less antenna with a directive gain of + 6 dB. If 1 mW of power is fed to it the total power radiated by the antenna will be
Answer: Option
Explanation:
6 dB = 10 log10 
= 100.6 3.98
Pr = 3.98 mW.
Discussion:
2 comments Page 1 of 1.
Pinky said:
9 years ago
Antenna is lossless so answer should be 1mw.
(1)
KarthikRamadugu said:
9 years ago
Antenna radiates a total power of 1mW at most in lossless case, there is no source of power in the antenna by itself it is just a transducer with power input coming from the feed.
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