Title:
PILLBOX WINDOW AND METHOD FOR MANUFACTURING PILLBOX WINDOW
Document Type and Number:
WIPO Patent Application WO/2023/095284
Kind Code:
A1
Abstract:
The present invention includes a circular waveguide with a cylindrical shape, a lead-in side rectangular waveguide, and a lead-out side rectangular waveguide. The circular waveguide includes a dielectric airtight window that partitions an internal space into a lead-in side and a lead-out side and one welding collar disposed on the circumference of an end face of at least one of the lead-in side and the lead-out side. The lead-in side rectangular waveguide and the lead-out side rectangular waveguide are connected to circular connecting plates that are connected to the corresponding end faces of the circular waveguide; and another welding collar to be welded to the one welding collar is provided on the circumference of at least one of the connecting plates. A groove or a hole, into which a rotation restriction jig for restricting rotation in the circumferential direction is fit, is formed in each of the one welding collar and the other welding collar; and the entire circumference of each of the one welding collar and the other welding collar including the groove or the hole is fixed by welding.
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Inventors:
MUNEMOTO NAOYA (JP)
Application Number:
PCT/JP2021/043396
Publication Date:
June 01, 2023
Filing Date:
November 26, 2021
Export Citation:
Assignee:
CANON ELECTRON TUBES & DEVICES CO LTD (JP)
International Classes:
H01P1/08; H01J23/40; H01P11/00
Foreign References:
| JPH01101001A | 1989-04-19 | |||
| JPS515336U | 1976-01-16 | |||
| JPH02144828A | 1990-06-04 |
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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