| Domain | Definition | ||
| Electrical Engineering | A tubular or rectangular microwave aerial which is wider at the open end and through which radio waves are radiated into space. Source: European Union. (references) | ||
| Space | A metallic cylinder closed at one end, used to obtain and direct radio frequency (RF) energy reflected from a satellite dish. It acts as a wave guide at microwave frequencies. RF energy inside the horn is picked up by a small probe; once inside the horn, the wavelength (energy) of the microwave radiation changes to a guided wave. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
