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Definition: 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.