Traveling wave tube with expanding resilient support elements
US5959406A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1995 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Aug 23, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4902
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A coupled cavity traveling tube employs a number of adjacent stacked annular magnetic coils (52a-52l) of insulated copper tape mounted on a housing (40) that contains an electron beam path (22) surrounded by a coupled cavity circuit (42,44). An electron beam that is focused by the annular magnetic coils is projected by an electron gun (10) at one end of the traveling wave tube to a collector (26) at the other end of the electron beam path. RF input and output ports (48,50) are coupled to opposite ends of the coupled cavity circuit, with the entire assembly mounted in an outermost device housing (12,28,36) that is sealed to and around the externally projecting RF input and output ports by a pair of sealing rings (60,62) that circumscribe coils (52b,52c,52l) at opposite ends of the traveling wave tube. Hot melt plastic (58a-58i) is injected into spaces between adjacent ones of the annular coils to firmly position the stack of coils against shock and vibration. Expandable support elements (80,82) are positioned in intercoil spaces that are inaccessible because of the sealing rings. The expandable support elements respond to flowing cooling oil by expanding to resiliently urge the coil…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.