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
Answer:A
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
Explanation: The larger the antenna aperture the larger is the resulting signal power density in the desired direction. The ratio of effective aperture to physical aperture is the antenna’s efficiency.