What Are Dipole Antennas?
Dipole antennas, also known as dipole aerials, doublets, or wire antennas, are a type of simple radio frequency antenna capable of both receiving and broadcasting a frequency. These are widely used in multiple technologies and as components of more complex antennas, due to their omnidirectional signal coverage. When radio frequency current flows into them, they produce either electromagnetic or radio signals. Like the more commonly known wire antennas, dipole antennas can be used in many places, from cars to televisions, and in AM-FM radios and wireless routers. Originally invented by Heinrich Rudolph Hertz in 1886, dipole antennas provide the backbone for radio frequency broadcasts. The term dipole comes from the fact that these antennas are constructed of either a straight rod or two rods of equal length, also known as a conductor. This is then attached to a radio feed line its center point. This split creates the two poles of the antenna, or dipoles.