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- Cavity_magnetron abstract "The cavity magnetron is a high-powered vacuum tube that generates microwaves using the interaction of a stream of electrons with a magnetic field while moving past a series of open cavities. Electrons passing by the openings to the cavities cause the interior to fill with a radio signal, and by sizing the cavity appropriately, the signal will resonate at a selected frequency and cause a powerful signal to be generated. Unlike other tubed-based microwave devices, namely the klystron and traveling-wave tube (TWT), the magnetron is not an amplifier of an existing signal, it produces a microwave signal directly due to its internal physical arrangement.The first form of magnetron tube, the split-anode magnetron, was invented by Albert Hull in 1920, but it wasn't capable of high frequencies and was little used. Similar devices were experimented with by many teams through the 1920s and 30s. The modern 'resonant' cavity magnetron tube was invented by John Randall and Harry Boot in 1940 at the University of Birmingham, England. The high power of pulses from their device made centimeter-band radar practical, with shorter wavelength radars allowing detection of smaller objects from smaller antennas. The compact cavity magnetron tube drastically reduced the size of radar sets so that they could be installed in anti-submarine aircraft and escort ships.In the post-war era the magnetron became less widely used in the radar role. This was due to the fact that the magnetron's output changes from pulse to pulse, both in frequency and phase. This makes the signal unsuitable for pulse-to-pulse comparisons, which is widely used for detecting and removing "clutter" from the radar display. The magnetron remains in use in some radars, but has become much more common as a low-cost microwave source for microwave ovens. In this form, approximately one billion magnetrons are in use today.".
- Cavity_magnetron thumbnail Magnetron2.jpg?width=300.
- Cavity_magnetron wikiPageExternalLink index.htm.
- Cavity_magnetron wikiPageExternalLink Magnetron.en.html.
- Cavity_magnetron wikiPageExternalLink radar-10.htm.
- Cavity_magnetron wikiPageExternalLink index.asp.
- Cavity_magnetron wikiPageExternalLink list.php?L=-M&M=Y&H=Magnetrons.
- Cavity_magnetron wikiPageID "20861".
- Cavity_magnetron wikiPageRevisionID "606589005".
- Cavity_magnetron hasPhotoCollection Cavity_magnetron.
- Cavity_magnetron subject Category:Electrical_components.
- Cavity_magnetron subject Category:English_inventions.
- Cavity_magnetron subject Category:Microwave_technology.
- Cavity_magnetron subject Category:Radar.
- Cavity_magnetron subject Category:Vacuum_tubes.
- Cavity_magnetron subject Category:World_War_II_American_electronics.
- Cavity_magnetron subject Category:World_War_II_British_electronics.
- Cavity_magnetron type Ability105616246.
- Cavity_magnetron type Abstraction100002137.
- Cavity_magnetron type Cognition100023271.
- Cavity_magnetron type Component105868954.
- Cavity_magnetron type Concept105835747.
- Cavity_magnetron type Content105809192.
- Cavity_magnetron type Creativity105624700.
- Cavity_magnetron type ElectricalComponents.
- Cavity_magnetron type EnglishInventions.
- Cavity_magnetron type Idea105833840.
- Cavity_magnetron type Invention105633385.
- Cavity_magnetron type Part105867413.
- Cavity_magnetron type PsychologicalFeature100023100.
- Cavity_magnetron comment "The cavity magnetron is a high-powered vacuum tube that generates microwaves using the interaction of a stream of electrons with a magnetic field while moving past a series of open cavities. Electrons passing by the openings to the cavities cause the interior to fill with a radio signal, and by sizing the cavity appropriately, the signal will resonate at a selected frequency and cause a powerful signal to be generated.".
- Cavity_magnetron label "Cavity magnetron".
- Cavity_magnetron label "Magnetron (elektronenbuis)".
- Cavity_magnetron label "Magnetron".
- Cavity_magnetron label "Magnetron".
- Cavity_magnetron label "Magnetron".
- Cavity_magnetron label "Magnetron".
- Cavity_magnetron label "Magnetrón".
- Cavity_magnetron label "Magnétron".
- Cavity_magnetron label "Магнетрон".
- Cavity_magnetron label "マグネトロン".
- Cavity_magnetron label "多腔磁控管".
- Cavity_magnetron sameAs Magnetron.
- Cavity_magnetron sameAs Magnetron.
- Cavity_magnetron sameAs Magnetrón.
- Cavity_magnetron sameAs Magnétron.
- Cavity_magnetron sameAs Magnetron.
- Cavity_magnetron sameAs マグネトロン.
- Cavity_magnetron sameAs 자전관.
- Cavity_magnetron sameAs Magnetron_(elektronenbuis).
- Cavity_magnetron sameAs Magnetron.
- Cavity_magnetron sameAs Magnetron.
- Cavity_magnetron sameAs m.057qd.
- Cavity_magnetron sameAs Q194154.
- Cavity_magnetron sameAs Q194154.
- Cavity_magnetron sameAs Cavity_magnetron.
- Cavity_magnetron wasDerivedFrom Cavity_magnetron?oldid=606589005.
- Cavity_magnetron depiction Magnetron2.jpg.
- Cavity_magnetron isPrimaryTopicOf Cavity_magnetron.
