Advantages and Disadvantages of the Dipole Antenna
26 Oct 2022
We have often heard about dipole antennae in our daily life. It is a very common kind of wire antenna that is used to measure antenna gain. One can use this dipole antenna on TV and radio. You can connect this antenna to the receiver with the help of a coaxial cable.
In this blog, we will discuss the dipole antenna in detail with its features, benefits, and disadvantages. We will also discuss many other things related to dipole antennas.
What is Dipole Antenna?
A dipole antenna is a kind of wire antenna. The common length of this antenna is half the wavelength of the frequency it will receive. You can connect a dipole antenna to the receiver and transmitter through a coaxial cable. Radiofrequency voltage occurs in the center portion of the antenna between the two poles.
High gain Dipole Antenna is used to measure antenna gain. This antenna gets minimum voltage and maximum current at the center portion.
Advantages of Dipole Antenna
A military Dipole Antenna is often used in TV broadcasting. There are many benefits of dipole antenna that help to get better performance. Let us discuss the different advantages of a dipole antenna in the below section:
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Simple to use
One of the biggest advantages of a dipole antenna is that it is simple to use. It also has a larger gap size that improves its performance. Because of its simple design, one can use this wire antenna in TV and radio.
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Helps to improve the reception of TV or radio
One advantage of the Dipole Antenna is that it picks up radio frequencies speedily. These radio frequencies enhance the reception of TV or radio. You will get better sound and pictures on your TV with the help of dipole antennas. It can be used for any kind of TV or radio.
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Efficient antenna
Thedipole antenna is more efficient than other types of antennas. You can use this antenna at a resonant frequency to get better performance. It is one of the best wire antennas that you can use for TV broadcasting and radio stations.
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Receives balanced signals
Another benefit of the Dipole Antenna is that it receives balanced signals. High gain stacked dipole antennas include a two-pole design that helps the antenna to get signals from different frequencies. They also solve the problems of conflicting signals and improve the quality of TV and radio reception. Balanced signals give a better quality of signals.
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Available in different forms
Dipole antennas come in various forms such as basic, folded, and half-wave dipole. Side mount dipole antenna have ends that turn on the backside towards the center to improve signal quality. Some other types of dipole antennae include the half-wave dipole and half-wave folded dipole antennas.
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Omnidirectional antenna
One of the major benefits of a dipole antenna is that it is omnidirectional. It means that the antenna can send and receive signals from any direction. These antennas get a donut-shaped radiation pattern and they sit in the middle of the hole. Moreover, it helps to give powerful signals from every direction.
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Easy to build this antenna
It is easy to develop dipole antennas with a few elements. Apart from that, it is also easy to install dipole antennas on TV or radio stations. This antenna can be connected to a drooping dipole or inverted TV and other configurations.
Inverted TV antennas have a shape similar to rabbit ears that you will find on old TV sets. These antennas help to get better signals. Furthermore, a dipole antenna gives a wider frequency range than other types of antennas.
Disadvantages of Dipole Antenna
We discussed the various advantages of dipole antennas. Now, let us discuss the disadvantages of dipole antennas in detail in the below section:
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Moving the antenna for receiving reception
A disadvantage of Dipole Antenna is that you have to try various combinations of pole placements to find the best reception position. The two-pole design of this antenna creates hassles while moving the antenna to get reception.
Even outdoor antennas are difficult to manage. One has to climb on the roof or stand to adjust this dipole antenna. In some outdoor dipole antennas, the adjustment is very complicated as forward directors extend out from the main antenna.
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The long wavelength at low frequencies
Dipole antennas have a very long wavelength at a low frequency. Due to a long wavelength, you cannot receive powerful signals. If you want better performance, it is necessary to use a quarter-wave dipole.
In addition, this antenna is not effective at frequencies below 27 MHz. As the length of the antenna reduces, the efficiency of the dipole antennas falls. Capacitive reactance causes a mismatch of an antenna from the intended frequency.
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Less efficiency of Inverted-V antennas
Inverted-V antenna has lower efficiency than standard dipole antennas. This type of antenna does not operate effectively in a limited space or at a less height. Folded antennas are very complicated antennas to use for TV or radio reception.
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Difficult to manage outdoor antennas
It is very difficult to manage outdoor antennas when the size of the antenna increases. It is a hassle to adjust an outdoor antenna without a proper tool. You will find it difficult to watch TV channels by using a dipole antenna.
Final words
Dipole antennas are normally used in TV and radio stations for better performance. You can also choose a log periodic Dipole Antenna to get a wider frequency. A dipole antenna has many benefits and disadvantages. It is normally used in various operations such as TV reception and radio stations.
A military coaxial Dipole Antenna is omnidirectional and helps to receive signals from different directions. It also gives balanced signals to broadcast TV channels and radio stations.
You can use this wire antenna even for regular TV uses or radio stations. It is also easy to maintain this antenna and clean it with the help of simple cloth.
26 Oct 2022
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