Beam stirrer

Details Beam stirrer Beam stirrer

1974-04-12

1976-02-17

Reynolds, Bruce A.

Electric heating

Metal heating

Of cylinders

H05B 906

Patent

active

039393208

ABSTRACT:
A microwave oven having means defining an oven cavity, a magnetron microwave power source, a waveguide for coupling energy from the magnetron to the oven cavity and preferably a mode matching transformer for establishing primarily only the dominant mode in the oven cavity. A beam stirrer is disposed adjacent the waveguide feed into the cavity and is in the form of a resonant structure for coupling the energy to the cavity. The resonant structure is rotated in an eccentric manner to spread the energy beam to thereby provide a more uniform heating pattern. In one specific form the resonant structure is a cylinder of relatively short length and dimensioned to provide good matching with the magnetron source along with beam motion.

REFERENCES:
patent: 3431381 (1969-03-01), Anderson
patent: 3526737 (1970-09-01), Black
patent: 3789179 (1974-01-01), Haagensen

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