How a dipole antena actually works and what are its main functions are basic things that someone needs to know, whatever their techinical abilities. You may not know it, but many families have used it in their homes, including you. This antenna is probably the most familiar type in use of RF antenna. Most of the times this is used alone, and not together with other antennas. The building of a such antenna is pretty easy. Getting all things settled with the calculation process may be the part that is a bit hard.
This antennas have 2 poles that directs the flow of radio frequency from each other. In this process the radio signal is amplified by the curent voltage. In that way the antenna will be able to freely connect to a feeder. The current will be distributed sinusoidal with this type of antenna. It will have a maximum peak and other that it will fall to zero near the end of the cycle. Unlike the current, the movement of the voltage has another pattern. The cycle will consist of a middle value and a maximum one. So at the center of the process one will be at its highest point, while the other at its lowest.
This antennas have 2 poles that directs the flow of radio frequency from each other. In this process the radio signal is amplified by the curent voltage. In that way the antenna will be able to freely connect to a feeder. The current will be distributed sinusoidal with this type of antenna. It will have a maximum peak and other that it will fall to zero near the end of the cycle. Unlike the current, the movement of the voltage has another pattern. The cycle will consist of a middle value and a maximum one. 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. We think that most of the times it is used as TV antennas. 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. An alternative to this is the folded dipole antenna. It is usually used for the FM band. Both dipoles meet each other in the feed point section. It receives best the one wavelengths. Similar to classi dipole antennas they can be build easily.
Other types of dipole antennas include the simplest one called the whip. It is actually a monopole and it covers only half of a normal dipole one. 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. The use of towers is common when it comes to dipole antennas. Around the country there are many such towers that have dipole antennas on them. The military use more than one on their towers. In many cases there are more than one in use and they have special dedicated frequencies. As it is with any other technology, there are imporvements that are made even to this simple one.
Other types of dipole antennas include the simplest one called the whip. It is actually a monopole and it covers only half of a normal dipole one. 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. The use of towers is common when it comes to dipole antennas. Around the country there are many such towers that have dipole antennas on them. The military use more than one on their towers. In many cases there are more than one in use and they have special dedicated frequencies. As it is with any other technology, there are imporvements that are made even to this simple one.