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What does the beam width of an antenna tell us?

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What does the beam width of an antenna tell us?

(a) Signal strength

(b) Signal power

(c) Directivity

(d) Degradation

The question was asked during an internship interview.

This interesting question is from Types of Antenna in chapter Antennas and Wave Propagation of Avionics

1 Answer

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Right option is (c) Directivity

The explanation is: The measure of an antenna’s directivity is beam width, the angle of the radiation pattern over which a transmitter’s energy is directed or received. Beam width is measured on an antenna’s radiation pattern.

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