Parabolic Antenna is an antenna that uses parabolic shaped reflectors to focus electromagnetic waves. It is widely used in satellite communications, radar systems, radio telescopes, and other wireless communication systems that require high gain and directionality.
Structural features:
The core component of a parabolic antenna is a parabolic shaped reflector, usually made of metal or other conductive materials. The shape of the reflector can effectively focus electromagnetic waves from a certain direction to a focal point.
A feeding device (such as a feeder or radiator) is usually installed at the focal position for receiving or transmitting signals.
High gain and directionality:
Prabolic antennas have very high gains, typically between 20 dBi and 40 dBi, depending on their size and design. This allows it to efficiently capture signals over long distances.
Due to their design, parabolic antennas are highly directional and are able to focus the signal in a specific direction, thereby reducing interference from other directions.
Field of Application:
Parabolic antennas are widely used in satellite communication, television broadcasting, radio communication, radar, weather monitoring and scientific research (such as radio astronomy).
In satellite communication, parabolic antennas are often used for signal transmission between ground stations and satellites.
Frequency range:
Parabolic antennas can be designed for use in a variety of frequency ranges, including microwave bands, and are suitable for use in various wireless communication standards.
Installation and use:
Parabolic antennas usually need to be installed in open space to avoid interference of obstacles to the signal. They can be fixed to a stand or adjusted using an electric control system to receive signals in different directions.
Due to its high gain, the alignment of parabolic antennas is very important, and a slight deviation may significantly degrade the signal quality.
Design Style:
Parabolic antennas can range in size from small (for home satellite television reception) to large (for scientific research and deep space communications).