Some of the technological applications of superconductivity include: the production of sensitive magnetometers based on SQUIDs fast digital circuits (including those based on Josephson junctions and rapid single flux quantum technology), powerful superconducting electromagnets used in maglev trains, Magnetic Resonance Imaging (MRI) and Nuclear ...
An antenna (plural antennae or antennas), or aerial, is an electrical device which converts electric power into radio waves, and vice versa. It is usually used with a radio transmitter or radio receiver.
1 Transmitting Antenna (transmitter) - A radio signal from a device travels to the transmitting antenna. 2  The signal creates a corresponding electromagnetic field called a radio wave. 3  This radio wave moves outward in all directions from the transmitting antenna.