Question

Beam width is the measure of directivity of antenna in terms of angles either radians or degrees.

(a) True

(b) False

This question was addressed to me in an interview for internship.

The query is from Half Power Beam Width in section Antenna Beam Width & Input Impedance of Antennas

Answer 1

Right choice is (a) True

The best explanation: Beam width is defined as the measure of angular width at two points on the major lobe where the power decreases to half of the maximum radiated power. So beam width is the measure of directivity of antenna.

\(D=\frac{4\pi}{B}\)