| 摘要 |
<p>The magnetron 1 of the invention comprises a cathode, a coaxial cylindrical anode 2, anode vanes 3, 4 which are spaced around the inner circumference of the cylindrical anode so as to form resonant cavities and an output probe 5 which is located within a recess 11 in an anode vane 3 such that the probe is spaced from the vane. The probe comprises an electrically conductive rod 6, a coaxial electrically conductive sleeve 7 which contacts the cylindrical anode and, preferably, two conductors 8 which contact the rod and contact the sleeve at diametrically opposed points. The invention permits extraction of microwave energy from the magnetron whilst eliminating the need for a large recess within the anode vane. Thus, this anode vane dissipates heat better than hitherto, and so the invention reduces the possibility of arc discharge within the magnetron. <IMAGE></p> |
