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) LossesThe question was asked in an international level competition.This question is from Link Budget Analysis topic in section Communication Link Analysis of Digital Communications

Antenna’s efficiency is given by the ratio of(a) Effective aperture

1.	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) LossesThe question was asked in an international level competition.This question is from Link Budget Analysis topic in section Communication Link Analysis of Digital Communications
Answer» The correct option is (a) Effective APERTURE to physical aperture The 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.

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