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The half power beam width of an antenna in both θ and φ are 400 each. Then the gain of the antenna is:

The half power beam width of an antenna in both θ and φ are 400 each. Then the gain of the antenna is: Correct Answer 25

Approximate gain of an antenna is given by the expression 40000/ (HPBW) 2. Substituting the given values in the above expression, the gain of the antenna is 25. In dB scale the gain of the antenna is 14 dB.

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