Slow-wave structure having block supported helix structure
US5173669A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 4, 1990 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Sep 4, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J23/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The helix (10) of a slow-wave structure of a traveling wave tube is supported by a number of spaced dielectric blocks (34, 36) that are carried by a helical ribbon (26) in registry with the helix (10) itself. Registration of the ribbon (26) and its blocks (34, 36) with the helix structure (10) is facilitated by first winding a guide wire (40) in the spaces (16) between successive turns of the helix (10), to extend into and protrude radially outwardly from the spaces (16). After use of the guide wire (40) to align the ribbon-supported dielectric blocks (34, 36), the guide wire (40) is removed and the assembly of helix (10), blocks (34, 36) and supporting ribbon (26) is secured in its tubular envelope (20) by brazing, coining or heat-shrinking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.