| 摘要 |
A magnetron is provided including a yoke having an inner space; a first magnet provided at one end of the inner space, a second magnet provided at a second end of the inner space, the second magnet being axially spaced from the first magnet. Further, there is an anode cylinder that generates a high frequency provided between the first magnet and the second magnet; a first pole piece and a second pole piece provided proximate first and second openings of the anode cylinder, respectively. Additionally, a seal that prevents outward leakage and has an inward protrusion extending axially toward the anode cylinder; and a choke filter, provided beneath a free end of the inwardly bent end of the seal to prevent outward leakage, may be provided.
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