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gptkbp:instanceOf
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gptkb:vacuum_tube
gptkb:Microwave_device
|
|
gptkbp:application
|
gptkb:communication
gptkb:Medical_therapy
Cooking
Plasma generation
|
|
gptkbp:category
|
Crossed-field device
Self-oscillating oscillator
|
|
gptkbp:commonFrequency
|
2.45 GHz
|
|
gptkbp:component
|
Microwave transmitters
Industrial microwave equipment
Radar transmitters
|
|
gptkbp:coolingSystem
|
Air cooling
Water cooling
|
|
gptkbp:criticalFor
|
Allied radar technology
|
|
gptkbp:discoveredBy
|
gptkb:Albert_W._Hull
|
|
gptkbp:emits
|
Coherent microwaves
|
|
gptkbp:failureMode
|
Cathode wear
Arcing
Seal leakage
|
|
gptkbp:frequency
|
Microwave frequencies
1 GHz to 40 GHz
|
|
gptkbp:generation
|
Electromagnetic waves
|
|
gptkbp:hasComponent
|
gptkb:cathedral
Anode
Cathode
Resonant cavity
|
|
gptkbp:improvementYear
|
1940
|
|
gptkbp:improves
|
gptkb:Harry_Boot
gptkb:John_Randall
|
|
gptkbp:inventedBy
|
gptkb:Albert_W._Hull
1920
|
|
gptkbp:material
|
gptkb:ceramics
Copper
|
|
gptkbp:output
|
Continuous wave output
Pulsed output
|
|
gptkbp:powerOutput
|
Hundreds of watts to several kilowatts
|
|
gptkbp:replacedBy
|
Solid-state microwave sources
|
|
gptkbp:requires
|
Magnetic field
High voltage
|
|
gptkbp:shape
|
Cylindrical
|
|
gptkbp:structure
|
Central cathode
Cylindrical anode with resonant cavities
|
|
gptkbp:usedDuring
|
gptkb:World_War_II
|
|
gptkbp:usedIn
|
Radar systems
Microwave ovens
Industrial heating
Consumer microwave ovens
|
|
gptkbp:bfsParent
|
gptkb:MIT_Radiation_Laboratory_Series_(books)
|
|
gptkbp:bfsLayer
|
6
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Microwave Magnetrons
|