The term antenna comes from antenna, a word from the tongue Latin which in turn came from the Greek. In those origins the word that concerns us was used with two different meanings: to refer to what was the mast that held the sails of the ships and also to make mention, as Aristotle explained, to the antennas that insects had.
The concept can refer to the device that, installed in a machine, allows capture or emit electromagnetic radiation.
An antenna can convert electromagnetic waves into electric power and thus act as receiving. It can also develop the reverse process: convert electricity into electromagnetic waves and function as transmitter.
According to their dimensions and other characteristics, the antennas can receive or transmit signals with different Lenght of wave. The physical location of the antennas also affects their operation.
The Television antennas, for example, they can capture television signals transmitted at frequencies between 470 and 960 MHz in the band known as UHF and between 41 and 250 MHz in VHF. In this way, the TV can receive the signals from air thanks to its antenna.
The mobile phone (mobile) and stations radio they also require antennas for signal transmission. In each case, the properties of the devices will be different.
In addition to what has been indicated, we cannot ignore that the word in question is also used very frequently within the world of journalism and the media in general. Thus, for example, we come across Antena 3, which is one of the oldest private television channels in Spain.
It is operated by Atresmedia Televisión, began broadcasting back in January 1990 and has its central studios in the town of San Sebastián de los Reyes. It has achieved great relevance over the years thanks, among other things, to series such as “Pharmacy on call”, “The house of trouble”, “Companions”, “A step forward”, “Paco’s men”, “The boarding school” or “Sea of plastic”.
It should not be forgotten either that there are some important awards at a communication level in Spain that respond to the name of the golden antenna. They are delivered annually, since 1962, by the Federation of Radio and Television Associations of Spain. Among the most relevant winners are from Pepa Bueno to Rosa María Mateo, including Mario Camus, Bobby Deglané, Félix Rodríguez de la Fuente and Carles Francino.
The idea antenna also appears in the terrain of the zoology. Some arthropods count on appendages divided into segments These are called antennas, which are located on the head and have sensory units that allow them to register temperature, capture odors and perceive flavors, among other issues.
The butterflies and the beetles males, to cite one case, use their antennae to perceive the sexual pheromones secreted by females. Thus, antennas are key to reproduction of the species.