Eccentric beam stirrer for microwave oven

Details Eccentric beam stirrer for microwave oven Eccentric beam stirrer for microwave oven

H - Electricity

05

B

327/2.23

H05B 6/64 (2006.01) F24C 7/02 (2006.01)

Patent

CA 1074873

ABSTRACT OF THE DISCLOSURE 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 match- ing 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.

243890

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