Uses of dipole antennas
For the people who are not familiar with technical devices, it is important to know the way a dipole antenna function and its basic characteristics. It is not actually rocket science as many people have had it at one specific point in their past and they are quite familiar with its look. You may know this type of antenna, because is one of the most known. It is used alone or with other types of antennas to reach for more frequencies. The building of a such antenna is pretty easy. The whole calculation process is quite interesting and easy, but if someone goes into deeper uses, things can get really complicated.
As the name of it says, it has 2 poles, that let the radio frequency flow through them easily. The radio signal starts to radiate, as the antenna is under the influence of current and voltage. In that way the antenna will be able to freely connect to a feeder. When it comes to the basic antenna it is clear that the current will be distributed in a sinusoidal manner. This means that each cycle will have a maximum and a minimum reach. That for current flow, while the voltage pattern is different. This will have 2 opposite values, one the is middle and one maximal. So at the center of the process one will be at its highest point, while the other at its lowest.
The uses of the dipole antenna are various as the most common applications range from the household to military bases. The most common use regards the TV antenna. If you never seen one (check the picture), it is distinguished by its two opposite loops. To get the best radio signal, the loops can be adjusted at a certain angle or lenght. The folded dipole antenna is a similar one to this. It is usually used for the FM band. Both dipoles meet each other in the feed point section. Used most of the time for one wavelength. Similar to classi dipole antennas they can be build easily.
Other types of dipole antennas include the simplest one called the whip. Actualy this is only half of a dipole. This is a monopole antenna. However the best antennas to receive the signals best are dipole ones. But the whip needs less space in order to function in the proper manner. Integrated in the dipole discussion, the use of towers is common. One good example could be the Warsaw tower which is a radio mast and functions on the long wave. Military use the doublets of this antennas. In many cases there are more than one in use and they have special dedicated frequencies. According to each mission the type of antennas may change and they can have all sorts of other improvements.