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Reflector antennas work by reflecting signals from a large conducting plane which acts like a mirror. ... Finally there's the paraboloid reflector, the classic round wok shaped satellite dish.
The new $2,000,000 telescope will have a 140-ft. paraboloid antenna (second in size only to the 250-ft. antenna being constructed in England) ...
The radio telescope used for these observations has a half-power beam-width of 6.7 minutes of arc. The antenna reflector is an aluminium paraboloid, ...
A single five-element Yagi antenna was used with each of the 49, 91 and 173 Mc./s. receivers, and a twelve-foot paraboloid reflector antenna was used with the 492 Mc./s. receiver.
The cylindrical array consists of three paraboloid reflector antennas, each equipped with 96 feeds, while the dish array includes 16 six-meter diameter parabolic antennas.