What is an antenna element?
Antenna element can be any part of the antenna connected to the reception or signal transmission. Right, the antenna element is any part of the antenna active in the reception or signal transmission. This is unlike other components that affect the ability to accept and transmit antenna, but do it passively. Examples of antenna elements include a metal rod on a TV antenna of a rabbit ears or a wire loop of the TV antenna UHF.
The correct antenna element acts as a converter. The converter is a device that converts energy from one form to another. In the antenna element, this can work one of two different but related ways. First, the element can convert electricity into radio frequency energy, which is what occurs when the signal is transferred via the antenna. Second, the element can convert radio frequency energy into electricity, which is what is happening when the signal is accepted through the antenna.
When an antenna element transmits a radio signal, the required signal is applied to the elementin the form of an electrical alternating signal. The AC signal causes the element to resonate to a specific frequency, which in turn generates an electromagnetic field directly proportional to the applied AC signal that extends in the direction or direction, determined by the physical design of the antenna element. The antenna elements are usually transmitted either in one direction, allowing a signal in a relatively small area, but at a relatively high level of power or in all directions covering a large area, but at a relatively low level of power.
When receiving signals, the antenna element basically works in the opposite order of the transmission element. The electromagnetic field created by the transmission antenna causes the receiving element to resonate. As the element resonates, it generates the electric signal of the alternating flow directly proportional to the electromagnetic field. Like broadcasting elements, the reception elements can be designed to receive signals from all directions, but at a relatively low power or from one direction at a relatively high level of power.
Some antennas have other components that some consider to be elements of antenna because they contribute to the performance of the antenna in some way. These other elements usually take the form of a reflector or director. Reflectors usually reflect the signal back to the active element that has already passed it. The directors will reflect the signals towards the active element before they pass it otherwise. An example of the reflector would be a parabolic meal used with satellite antennas, while an example of the director would be many metal tubes that appeared on roofing television antennas.