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US 6,787,997 B2Granted
Linear-beam microwave tube
AssigneeNEC Microwave Tube, Ltd.
InventorShintaro Arai
Life of this patent
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Abstract
A collector core of a microwave tube has an insulator and a radiator around a cylindrical outer peripheral portion thereof. The cylindrical insulator and radiator comprise a slit along a central axis of the collector core, respectively. These slits are arranged on mutually overlapped positions. Portions of the collector core corresponding to these slits are cut off so as to be flat or concave. These slits and the flat surface or the concave portion are arranged symmetrically in a section of the collector core.
Claims22
A linear-beam microwave tube comprising:
- a collector core for collecting electrons of electron beams;
- an insulator which is arranged by adhering on an outer peripheral portion of said collector core and which comprises a slit;
- and
- a radiator which is arranged by adhering on the outer peripheral portion of the insulator and which comprises a slit in a portion corresponding to the slit of said insulator;
- wherein said collector core comprises a cut-off portion, which corresponds to said two slits.
2 more elements
A linear-beam microwave tube comprising:
- a collector core for collecting electrons of electron beams;
- an insulator formed on an outer surface of said collector core and comprising a first slit;
- and
- a radiator formed on an outer surface of the insulator and comprising a second slit in an area of said first slit,
- wherein said collector core comprises an irregular portion in an area of said first and second slits.
2 more elements
Dependencies are inferred from the claim text.