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0 votes
3.6k views
in Physics by (59.7k points)

A parabolic dish antenna has a conical beam 2°wide. The directivity of the antenna is approximately

(a) 20 dB

(b) 30 dB

(c) 40 dB

(d) 50 dB

1 Answer

+1 vote
by (56.9k points)
selected by
 
Best answer

The correct option is ( c )

Explanation:

Directivity of Parabolic dish is approximately given by

41253/Beamwidth θ plane * Beamwidth in Φ plane

In the given problem

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