klystron resonant cavity

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• Klystron — A klystron is a specialized linear beam vacuum tube (evacuated electron tube). Klystrons are used as amplifiers at microwave and radio frequencies to produce both low power reference signals for superheterodyne radar receivers and to produce high …   Wikipedia

• Cavity magnetron — Magnetron with section removed (magnet is not shown) …   Wikipedia

• Hansen, William Webster — ▪ American physicist born May 27, 1909, Fresno, California, U.S. died May 23, 1949, Palo Alto, California       American physicist who contributed to the development of radar and is regarded as the founder of microwave technology.       After… …   Universalium

• Superconducting Radio Frequency — (SRF) science and technology involves the application of electrical superconductors to radio frequency devices. The ultra low electrical loss of the superconductor yields RF resonators with extremely high quality factors, or Q . For example, it… …   Wikipedia

• Inductive output tube — The inductive output tube or IOT is a variety of vacuum tube which evolved in the 1980s to meet increasing efficiency requirements for high power RF amplifiers. The primary commercial use of IOTs is in UHF television transmitters, where they have …   Wikipedia

• Maser — For other uses, see Maser (disambiguation). A hydrogen radio frequency discharge, the first element inside a hydrogen maser (see description below) A maser is a device that produces coherent electromagnetic waves through amplification by… …   Wikipedia

• Diode — Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left) …   Wikipedia

• Resonator — A resonator is a device or system that exhibits resonance or resonant behavior, that is, it naturally oscillates at some frequencies, called its resonance frequencies, with greater amplitude than at others. Although its usage has broadened, the… …   Wikipedia

• electron tube — an electronic device that consists, typically, of a sealed glass bulb containing two or more electrodes: used to generate, amplify, and rectify electric oscillations and alternating currents. Also called electronic tube. Cf. gas tube, vacuum tube …   Universalium

• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

• H2S radar — The H2S radar was used in bombers of RAF Bomber Command. It was designed to identify targets on the ground for night and all weather bombing. The transmitter/receiver equipment was officially known as TR3159 (H2S Mk I/ASV VIB) or TR3191 (H2S Mk… …   Wikipedia