Signal transmission

Antenna (radio)

Electrical device

Antenna array

Set of multiple antennas which work together as a single antenna

Coaxial cable

Electrical cable with concentric construction

Electromagnetic shielding

Using conductive or magnetic materials to reduce electromagnetic field intensity

Faraday cage

Enclosure of conductive mesh used to block electric fields

Transmission line

Specialized cable or other structure designed to carry radio waves

Waveguide

A structure that guides waves, with minimal loss of energy by restricting the transmission of energy to one direction