parabolic antenna


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parabolic antenna

[¦par·ə¦bäl·ik an′ten·ə]
(electromagnetism)
Antenna with a radiating element and a parabolic reflector that concentrates the radiated power into a beam.

parabolic antenna

A bowl-shaped antenna that reflects and focuses incoming radio waves into a narrow beam directed toward a receiver typically positioned above the center of the unit. Also called a "dish" or "mirror," parabolic antennas are used for satellite signals and planetary telescopes. The reflective mirror design can also emit energy such as in a flashlight or automobile headlight. See DBS.


Dish Antennas
Parabolic antennas are easily recognized by their bowl shape.
References in periodicals archive ?
The overall dimensions of the terminal are competitive with the size of its parabolic antenna counterpart.
If the simulation is to test a receiving system that operates with a rotating parabolic antenna, each of the simulated target signals would be input to the simulator (from the signal generator) at a signal strength which includes the antenna boresight gain.
If an earth station uses a parabolic antenna, a pedestal is required to spatially track the satellite.
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adapter, junction box trc4000, network equipment, parabolic antenna
Description: Many private users are reluctant or are not allowed to install parabolic antennas due to installation inconveniences and/or aesthetic reasons.
Our affordable and state-of-the-art backhaul radios can be equipped with four high gain parabolic antennas of different sizes for shorter and longer distance applications.
The Italian authors discuss branching, capacity improvement, modulations and coding, countermeasures against imperfections in TX and RX chains, low noise amplifiers, local oscillators, analog-to-digital converters, power amplifiers, upconversion, linearization techniques, and parabolic antennas.
When launched, the satellite will be placed in a hot spot location for transmitting signals of major TV stations in Brazil and will have 22-25 million parabolic antennas pointed in its direction.
Ashgabat and other cities of Turkmenistan face rallies from time to time for total removal of air conditioners or parabolic antennas from the facades of houses.
However, an array of parabolic antennas is also limited by the field observable by the individual telescopes.
monitor the sun's radio emissions with a radio telescope that uses three parabolic antennas of 28 feet, 8 feet and 3 feet in diameter, along with fixed semi-bicone and tracking antennas.