GB1289179A - - Google Patents
Info
- Publication number
- GB1289179A GB1289179A GB1289179DA GB1289179A GB 1289179 A GB1289179 A GB 1289179A GB 1289179D A GB1289179D A GB 1289179DA GB 1289179 A GB1289179 A GB 1289179A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- drift
- radial
- tube
- slots
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/18—Resonators
- H01J23/20—Cavity resonators; Adjustment or tuning thereof
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
1289179 Velocity-modulated tubes VARIAN ASSOCIATES 24 Sept 1969 47095/69 Heading H1D In a high frequency discharge tube incorporat - ing a cavity resonator having a re-entrant drift tube, the free end of the drift tube is provided with axially extending slots 21, Fig. 2B, and is coated on either or both the interior and exterior surface with lossy material 22, to suppress unwanted modes. The slots may be radial, Fig. 2B, or non-radial, Fig. 2G, and may, in the opposed ends of adjacent drift,tubes, be either axially aligned (Fig. 1, not shown), or azimuthally out of phase (Fig. 3, not shown). Lossy materials referred to include an Al/Cr/Co/Fe alloy and electrolytically deposited iron. Reference is made tothe use of the arrangement in klystrons, hybrid tubes, and travelling-wave tubes incorporating coupled-cavity slow-wave structures having reentrant drift tubes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4709569 | 1969-09-24 | ||
| FR6932732A FR2024085A5 (en) | 1969-09-24 | 1969-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1289179A true GB1289179A (en) | 1972-09-13 |
Family
ID=26215291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1289179D Expired GB1289179A (en) | 1969-09-24 | 1969-09-24 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2024085A5 (en) |
| GB (1) | GB1289179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0696048A3 (en) * | 1994-08-03 | 1998-03-18 | Eev Limited | Electron beam tubes |
-
1969
- 1969-09-24 GB GB1289179D patent/GB1289179A/en not_active Expired
- 1969-09-25 FR FR6932732A patent/FR2024085A5/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0696048A3 (en) * | 1994-08-03 | 1998-03-18 | Eev Limited | Electron beam tubes |
| US5821693A (en) * | 1994-08-03 | 1998-10-13 | Eev Limited | Electron beam tubes having a unitary envelope having stepped inner surface |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2024085A5 (en) | 1970-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PCNP | Patent ceased through non-payment of renewal fee |