Antenna's efficiency is given by the ratio of
A)effective aperture to physical aperture
B)physical aperture to effective aperture
C)signal power to noise power
D)losses

Question

Quizplus · Accepted Answer

Antenna efficiency is often described as the ratio of the effective aperture to the physical aperture. The effective aperture is a measure of how effectively an antenna can capture power from a passing electromagnetic wave, while the physical aperture refers to the actual, physical size of the antenna. This ratio gives an indication of how efficiently an antenna can convert incoming electromagnetic waves into electrical power relative to its size.

Antenna's Efficiency Is Given by the Ratio of