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in Physics by (59.7k points)

The directivity of an antenna array can be increased by adding more antenna elements, as a larger number of elements

(a) Improves the radiation efficiency

(b) Increases the effective area of the antenna

(c) Results in a better impedance matching

(d) Allow more power to be transmitted by the antenna

1 Answer

+1 vote
by (56.9k points)
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Best answer

The correct option is (d) Allow more power to be transmitted by the antenna

Explanation:

Directivity of antenna increases by adding more antenna elements in an antenna array.

Effective area (Ae) and Directivity are related by

Ae=λ2/4π .D

Thus, as D increases effective aperture also increases

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