Statements (51)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
vacuum tube
Microwave device |
| gptkbp:application |
gptkb:communication
Cooking Plasma generation Medical therapy |
| 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 |
cathedral
Anode Cathode Resonant cavity |
| https://www.w3.org/2000/01/rdf-schema#label |
Microwave Magnetrons
|
| 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
|