Military Dipole Antennas
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Frequently asked questions about products in this category Military Dipole Antennas
A dipole antenna is a simple radio antenna consisting of two metal conductors of equal length.
When the transmitter sends a signal, an electromagnetic field is generated in the conductors, and the dipole antenna emits a radio wave. Due to this design, the dipole antenna is used in many communication systems – from radio stations to FPV equipment.
There are several types of dipole antennas, differing in design. The most common is the half-wave dipole, whose length is equal to half the signal wavelength. Folded dipoles and shortened designs are also used in various radio systems.
A half-wave dipole consists of two metal elements connected to a feed cable. A folded dipole has a different design – two parallel conductors connected to each other. This type of dipole antenna has a different input impedance and is often used in television antennas.
Dipole antennas are used in various radio communication systems. They are employed in radio broadcasting, television signal reception, FPV equipment, and drone ground control stations. Thanks to its simple design, the dipole antenna remains one of the most common antennas.
A dipole antenna radiates a signal almost uniformly around itself. In the horizontal plane, its radiation pattern is circular. This means that the signal is received from various directions without precise antenna aiming.
A classic half-wave dipole has an input impedance of approximately 73 ohms. This value matches well with 50 or 75 ohm coaxial cables. This allows the dipole antenna to be easily connected to most radio transmitters.
A dipole antenna does not have a high signal gain. Its main advantage is uniform signal radiation in different directions. This makes a dipole antenna well-suited for basic communication and signal reception.
A dipole antenna is best installed in an open area. There should be no large metal objects or other antennas nearby. It is also important to raise the dipole antenna to a sufficient height for the signal to propagate without obstruction.
Dipole antennas can be purchased on the FlashArmy military equipment marketplace. Depending on your needs, dipole antennas vary in frequency ranges and compatibility with other equipment, which should be considered when choosing.