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US 7,030,347 B2Granted
Microwave oven with mode stirrer
AssigneeLG Electronics Inc.
InventorsWon Hui Lee, Eung Su Kim
Life of this patent
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Abstract
A microwave oven, which has a circular polarized wave stirrer for uniformly heating food, is disclosed. The microwave oven includes a magnetron generating electromagnetic waves, a waveguide guiding the electromagnetic waves generated from the magnetron to a cavity, and a stirrer formed to an outlet of the waveguide, receiving electromagnetic waves from the magnetron, and generating two polarized waves having different electric field directions and phases.
Claims20
A microwave oven, comprising:
- a magnetron that generates electromagnetic waves;
- a waveguide that guides the electromagnetic waves generated from the magnetron to a cavity;
- a stirrer formed to an outlet of the waveguide, that receives electromagnetic waves from the magnetron, and that generates two polarized waves having different electric field directions and phases, wherein the two polarized waves are converted into circular polarized waves;
- and
- a motor connected to a rotation axis of the stirrer, the motor configured to rotate the stirrer.
2 more elements
A microwave oven, comprising:
- a magnetron generating electromagnetic waves;
- a waveguide that guides the electromagnetic waves generated from the magnetron to a cavity;
- a stirrer formed to an outlet of the waveguide, that receives electromagnetic waves from the magnetron and having a pair of removed portions formed at an edge of the stirrer and facing into one another in order to generate two polarized waves having different electric field directions and phases;
- and
- a motor connected to an eccentric rotation axis of the stirrer, the motor configured to rotate the stirrer, wherein the two polarized waves are converted into circular polarized waves.
2 more elements
Dependencies are inferred from the claim text.