A transmitter or receiver that converts alternating electric currents into electromagnetic waves, or vice versa.
Or aerial, is a transmitter or receiver that converts alternating electric currents into electromagnetic waves, or vice versa. Distribution of the waves depends on the design of the antenna. A high-gain antenna has a significant degree of directionality, used in radar or space communication. A low-gain antenna works equally well in all directions, useful for radio signals.
Distribution of the waves depends on the design of the antenna. A high-gain antenna has a significant degree of directionality, used in radar or space communication. A low-gain antenna works equally well in all directions, useful for radio signals.