What is the parabolic antenna?
A parabolic antenna is an antenna that uses food that is shaped as a shallow bowl. They are used for satellite television, radio, astronomy, cellular telecommunications and radar. They can also be used to strengthen the wireless internet router signal. Parabolic antennas are also known as food antennas. Its early design was created using a brass ball, zinc plate and wood. Hertz used one antenna to transmit signals and the other to receive signals.
Hertz used his antenna to help demonstrate the existence of electromagnetic waves. As a result of this and other successes, his name is now a term used for measuring radio and electrical frequencies. These include Hertz (Hz), Kilohertz (KHZ) and Megahertz (MHz). One antenna can transmit and receive signals. The parabolic antenna is a one -way antenna because it transmits signals only in one direction. Part of the unit is known as the reflector.
reflector creates a large surface area used by the antenna to receive and transmitsignals. The innermost part of the bowl is the peak. The reflector collects and strengthens the signals it collects. This signal strengthening is called profit.
The strengthened signal focuses on the transmission and receiving element at the focal point or focusing the parabolic antenna. The focus is usually directly opposite the bottom of the bowl. The element or feeding sends signals to and from the device receiving signal, such as a TV receiver or radio.
The distance between the focus and the peak is called the focal length. For the parabolic antenna to function properly, the focal length must be correct. It is based on the diameter of the bowl. For the calculation of the focal point, the diameter of the reflector is to the second and then divided by 16 times the depth of the reflector. The result is the right distance to use between the focus and the peak.
parabolic antennas are usually mounted on the roof, on the side of the building or standing outdoors. They can also be placedVyho inward if they are used with internet routers. The device must be focused in the right direction for signal collection. The device connected to the antenna usually marks the power of the antenna signal. This helps the user better focus the antenna get a stronger signal.