| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetron for an electronic range, which can make the frequency of microwaves emitted to the outside superior by reducing high-frequency noise caused by a speed difference between electrons transferring through vanes of the magnetron. SOLUTION: The magnetron comprises a positive electrode cylinder, a negative electrode, and a great number of vanes which form a positive electrode part together with the positive electrode cylinder and are each equipped with a first cutoff part 501a housing a large-diameter strip ring and a second cutoff part 501b housing a small-diameter strip ring. An electron-transferring path is installed at a corner of a side surface of the negative electrode in such a manner that electrons can be transferred without interference by the first cutoff part 501a. COPYRIGHT: (C)2004,JPO
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