A magnetron is a vacuum tube device that generates microwaves using the interaction of a magnetic field and electric field. It was invented in 1920 by Albert Hull and improved in 1940 by John Randall who invented the resonant cavity magnetron. A magnetron operates by using a magnetic field to keep electrons in a spiral motion around an anode, generating microwaves in a resonant cavity. Its main applications include use in radar systems, microwave ovens for heating, and lighting such as in sulfur lamps.
3. History of magnetron :-
• In 1920, the split-
anode magnetron
was invented by
Albert Hull.
• In 1940, the
resonant cavity
magnetron was
invented by John
Randall.