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A klystron is a device that converts the kinetic energy of an electron beam into radio frequency power, using resonant cavities. It was invented by the Varian brothers in 1937 and is used for high-power applications such as radar, satellite communication, and particle accelerators.
NEXRAD is a system of 159 high-resolution weather radars operated by the U.S. government agencies for detecting precipitation and atmospheric movement. It was developed and deployed from 1988 to 1997, replacing the previous WSR-57 and WSR-74 radars.
A Sutton tube is a type of vacuum tube that generates microwaves by accelerating and decelerating electrons in a resonant cavity. It was developed in 1940 as a local oscillator for radar receivers and later modified as a switch or rhumbatron for microwave radar.
Learn about the traveling-wave tube (TWT), a vacuum tube that amplifies microwave signals by velocity modulating an electron beam. Compare different types of TWT, such as helix and coupled cavity, and their applications in radar, communication, and electronic warfare systems.
The klystron, a microwave tube, [20] was noticed in 1938 by Sperry Gyroscope, who gave the Varian brothers and Hansen a contract to do further work. [17] The Varians did not know that the British were also working on early radar technology, which by then could detect submarines, but could not be made light enough to use in airplanes. [10]
McGill radar (at the J. S. Marshall Radar Observatory): [11]. 9 metre (30 feet) diameter antenna. Uses a klystron to produce a wavelength signal of 10 cm. (S-Band); Doppler since 1993 and dual polarization was added in 1999.
Brown, Louis., A Radar History of World War II, Institute of Physics Publishing, Bristol, 1999., ISBN 0-7503-0659-9; Latham, Colin & Stobbs, Anne., Radar A Wartime Miracle, Sutton Publishing Ltd, Stroud 1996 ISBN 0-7509-1643-5 A history of radar in the UK during World War II told by the men and women who worked on it.
PFNs are used to produce uniform electrical pulses of short duration to power devices such as klystron or magnetron tube oscillators in radar sets, pulsed lasers, particle accelerators, flashtubes, and high-voltage utility test equipment.