Device for preventing high-power continuous wave magnetron from leaking microwaves

The utility model belongs to the field of vacuum electronic devices, and relates to a device for preventing a high-power continuous wave magnetron from leaking microwaves, which comprises a large choking cylinder, a small choking cylinder and a cathode seat, a round tube is sleeved outside the small choking cylinder, one end face of the round tube is connected with the cathode seat, a groove which is slightly larger than one eighth of the working wavelength of the magnetron is cut on the non-connecting end face of the round tube, and a lambda/8 choking groove is formed. The large choking cylinder is inserted into the lambda/8 choking groove, the large choking cylinder and the lambda/8 choking groove are concentric, the large choking cylinder and the lambda/8 choking groove form two non-mechanical contact end faces, and the small choking cylinder extends into the circular pipe. The high-power continuous wave magnetron has the beneficial effects that the technical problem of microwave power leakage of the catho