The cavity magnetron is a high-power vacuum tube used in early radar systems and subsequently in microwave ovens and in linear particle accelerators. A...
52 KB (6,431 words) - 01:09, 23 June 2024
Resonator (redirect from Resonant cavity)
the cavity in or out, changing its size. The cavity magnetron is a vacuum tube with a filament in the center of an evacuated, lobed, circular cavity resonator...
20 KB (2,660 words) - 17:57, 9 October 2023
Microwave oven (section Cavity magnetron)
homogeneous, high-water-content food item. The development of the cavity magnetron in the United Kingdom made possible the production of electromagnetic...
87 KB (10,327 words) - 06:17, 27 June 2024
physicist who with Sir John Randall and James Sayers developed the cavity magnetron, which was one of the keys to the Allied victory in the Second World...
5 KB (382 words) - 03:51, 25 July 2023
Nixie tube (redirect from Magnetron beam-switching tube)
applied to the electrodes made the electrons form a thick sheet (as in a cavity magnetron) that went to only one anode. Applying a pulse with specified width...
22 KB (2,616 words) - 18:41, 28 March 2024
the period before and during World War II. A key development was the cavity magnetron in the United Kingdom, which allowed the creation of relatively small...
99 KB (11,851 words) - 11:53, 9 June 2024
money to develop the cavity magnetron on a massive scale, Churchill agreed that Sir Henry Tizard should offer the cavity magnetron to the Americans in...
151 KB (22,276 words) - 16:51, 14 May 2024
SCR-720 (section Cavity magnetron)
concept was first raised in early 1940 as part of UK research using the cavity magnetron as the basis of a microwave-frequency radar system. They abandoned...
35 KB (5,098 words) - 06:37, 19 May 2024
cavity magnetron and found it superior to the German split-anode magnetrons, particularly for its high power, high frequency performance. Magnetrons based...
7 KB (679 words) - 00:37, 26 September 2022
John Randall (physicist) (section The Magnetron)
physicist and biophysicist, credited with radical improvement of the cavity magnetron, an essential component of centimetric wavelength radar, which was...
20 KB (2,483 words) - 04:39, 18 June 2024
H2S (radar) (section Magnetron debate)
airborne interception radar based on the 9.1 cm wavelength, (3 GHz) cavity magnetron revealed that different objects have very different radar signatures;...
70 KB (10,457 words) - 17:56, 21 June 2024
Referring to one such British secret, a device known as a resonant cavity magnetron, American historian James Phinney Baxter III later wrote, "When the...
22 KB (2,775 words) - 18:51, 14 May 2024
semiconductor electronics after the war. Randall and Boot's prototype cavity magnetron tube at the University of Birmingham, 1940. In use the tube was installed...
67 KB (6,963 words) - 14:33, 25 May 2024
several new technologies the UK had been developing. Among these was the cavity magnetron, a leap forward in the creation of microwaves that made them practical...
24 KB (3,328 words) - 03:14, 23 April 2024
also one of the first scientists in the United States to work on the cavity magnetron, which is used in microwave radar and microwave ovens. Born into a...
51 KB (6,133 words) - 13:46, 28 May 2024
HF or VHF). In February 1940, Great Britain developed the resonant-cavity magnetron, capable of producing microwave power in the kilowatt range, opening...
141 KB (22,065 words) - 06:08, 5 April 2024
Klystron (section Two-cavity klystron)
used the far more powerful but frequency-drifting technology of the cavity magnetron for much shorter-wavelength centimetric microwave generation. Klystron...
26 KB (3,234 words) - 21:04, 23 June 2024
AI Mark VIII radar (section Cavity magnetron)
development began in 1939 but was greatly sped after the introduction of the cavity magnetron in early 1940. This operated at 9.1 cm wavelength (3 GHz), much shorter...
119 KB (18,759 words) - 03:09, 11 February 2024
John Randall and Harry Boot. They created a radical new design, the cavity magnetron, that made microwave radar possible. Oliphant also formed part of the...
64 KB (7,328 words) - 00:35, 15 February 2024
of World War II. It was the first German radar to be based on the cavity magnetron, which eliminated the need for the large multiple dipole-based antenna...
8 KB (1,089 words) - 02:15, 20 October 2022
GL Mk. III radar (section Magnetrons)
began development shortly after the introduction of the cavity magnetron in early 1940. The magnetron allowed radar systems to operate at microwave frequencies...
54 KB (7,991 words) - 15:10, 31 July 2023
contributions to the Allied war effort, such as the development of the cavity magnetron for radar, various advances in communications technology, and the mass...
41 KB (4,006 words) - 16:02, 26 June 2024
company was involved in important technological advances, notably the cavity magnetron for radar. Between 1945 and 1999, GEC-Marconi/Marconi Electronic Systems...
130 KB (12,337 words) - 11:22, 22 June 2024
Modern microwave ovens have been designed to prevent damage to the cavity magnetron tube from microwave energy reflection, and aluminium packages designed...
12 KB (1,274 words) - 23:24, 8 April 2024
War II German countermeasure to S band microwave radar produced by a cavity magnetron. Introduced in September 1943, it replaced Metox, which was incapable...
10 KB (1,554 words) - 00:30, 26 September 2022
an Irish (Belfast-educated) engineer who refined the power of the cavity magnetron for radar purposes (detection of U-boats) in the Second World War....
5 KB (402 words) - 08:40, 7 August 2023
medium in a laser). By putting such an amplifying medium in a resonant cavity, feedback is created that can produce coherent radiation. Atomic beam masers...
19 KB (2,222 words) - 01:34, 19 April 2024
One of the devices brought to the US by the Mission, the resonant cavity magnetron, was later described as "the most valuable cargo ever brought to our...
23 KB (2,890 words) - 22:45, 13 February 2024
Traveling-wave tube (section Coupled-cavity TWT)
limited to a few hundred watts. Coupled cavity TWT - in which the radio wave interacts with the beam in a series of cavity resonators through which the beam...
21 KB (2,474 words) - 08:23, 27 June 2024
possible with the introduction of two key technologies in 1940: the cavity magnetron, which produced microwave signals with reasonable efficiency; and pulse-code...
20 KB (2,694 words) - 22:21, 26 June 2024