parabolic
Light weighted antennas are used for communication
An XM satellite radio antenna cannot be used as a cell phone antenna as they use a different type of connection. Satellite signals operate on a different frequency from cell phones and use different technologies in their antennas as well.
A DTV antenna is used to capture digital television signals. By law, all television signals in the United States must be digital, and this type of antenna is used by customers who do not subscribe to satellite or cable services.
Microwaves. These poke through the ionosphere to reach the satellite
A satellite dish is considered a type of antenna. It is designed to receive signals from satellites in orbit, converting those signals into a format that can be used by a receiver or television. While it connects to a receiver using coaxial or other cables to transmit the signal, the dish itself functions as an antenna.
IN COMMUNICATIONS: Satellite uses satellite (orbiting) relay-stations in Space but Terrestrial uses cable or antenna-to-antenna signals based entirely on Earth to broadcast your television, radio or cell-phone :) ++++ IN ASTRONOMY: Terrestrial means Earth- (or planet-) bound; a Satellite is any natural or man-made object that orbits a planet. The Moon is a satellite of the Earth.
They do not make very good antennas though.
despun antenna is used in spin stabilization of cylindrical shaped satellite in which this abtenna is mounted on the top of the cylindrical satellite and the cylindrical body of the satellite keeps spinning around its vertical axis while the despun antenna on the body keeps following the specific area on the surface of the earth.
A duality antenna is a type of antenna that can operate in two different modes or frequency bands, allowing it to transmit and receive signals effectively in multiple applications. This design often leverages the principles of dual polarization or combines different antenna technologies to enhance performance and versatility. Duality antennas are commonly used in communication systems, including wireless networks and satellite communications, to improve coverage and data throughput. Their ability to function in diverse environments makes them valuable in modern telecommunications.
Communication Satellite, launch and used by Philiipines
introduction of satellite based communication
AnswerThe term microwave is associated to electromagnetic waves of frequency of the order of MHz .Since the energy carried by the wave is directly proportional to their frequency they are of great use in distance communication. For a simple microwave communication system, a radiator ,a reflector and one receiver antenna are essential. As the wave penetrates through the atmosphere a satellite reflector is usually used. Satellites use Microwaves to send signals.