GB1358489A - Apparatus for loading cavity resonators on tunable velocity modulation tubes - Google Patents
Apparatus for loading cavity resonators on tunable velocity modulation tubesInfo
- Publication number
- GB1358489A GB1358489A GB2205972A GB2205972A GB1358489A GB 1358489 A GB1358489 A GB 1358489A GB 2205972 A GB2205972 A GB 2205972A GB 2205972 A GB2205972 A GB 2205972A GB 1358489 A GB1358489 A GB 1358489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lossy
- cavity
- cavities
- coated
- plate
- 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
- H01J23/207—Tuning of single resonator
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Microwave Tubes (AREA)
Abstract
1358489 Klystrons; cavity resonators VARIAN ASSOCIATES 11 May 1972 [17 May 1971] 22059/72 Headings H1D and H1W A turnable multicavity klystron incorporates a resonant load coupled to at least one of the cavities, to introduce a frequency dependent amount of loss, and hence change of Q, such that the bandwidth of the tube is maintained substantially constant throughout the tuning range. As described, the second and third cavities of a five cavity klystron (Fig. 1, not shown) are each provided with a series resonant lossy circuit located wholly within the respective resonator. The lossy circuit may, Fig. 8, be in the form of a conductive plate 26 spaced from the cavity wall 27, and supported from an adjacent wall of the resonator by an arcuate arm 28 which is formed by a stainless steel member sandwiched between a pair of copper segments, the whole being coated with a layer R L of lossy material, e.g. an Al/Cr/Co/Fe alloy, and the plate 26 having a concave, serrated surface (Fig. 9, not shown) to inhibit multifactoring. Alternatively, Fig. 11, the lossy circuit may be in the form of an apertured copper plate, cut at 39, to provide a slotted ring with lossy material 41 coated on its inner surface.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14441171A | 1971-05-17 | 1971-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1358489A true GB1358489A (en) | 1974-07-03 |
Family
ID=22508466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2205972A Expired GB1358489A (en) | 1971-05-17 | 1972-05-11 | Apparatus for loading cavity resonators on tunable velocity modulation tubes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3725721A (en) |
| JP (1) | JPS5643586B2 (en) |
| CA (1) | CA954974A (en) |
| DE (1) | DE2223543C3 (en) |
| GB (1) | GB1358489A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942066A (en) * | 1972-10-25 | 1976-03-02 | Nippon Electric Company Limited | Velocity modulation tube including a high resonance-frequency floating prebuncher having a q-value lower than a low resonance-frequency input cavity |
| JPS535110B2 (en) * | 1972-10-25 | 1978-02-23 | ||
| JPS5010552A (en) * | 1973-05-24 | 1975-02-03 | ||
| JPS5169355A (en) * | 1974-12-06 | 1976-06-15 | Nippon Electric Co | Kokoritsu 4 kudosokudohenchokan |
| JPS51115768A (en) * | 1975-04-03 | 1976-10-12 | Nec Corp | Wide-band speed modurated tube |
| JPS58186138A (en) * | 1982-04-26 | 1983-10-31 | Toshiba Corp | Klystron device |
| US4800322A (en) * | 1984-10-23 | 1989-01-24 | Litton Systems, Inc. | Broadband klystron cavity arrangement |
| US5315210A (en) * | 1992-05-12 | 1994-05-24 | Varian Associates, Inc. | Klystron resonant cavity operating in TM01X mode, where X is greater than zero |
| US5521551A (en) * | 1994-11-21 | 1996-05-28 | Ferguson; Patrick E. | Method for suppressing second and higher harmonic power generation in klystrons |
| US6326730B1 (en) * | 1998-11-16 | 2001-12-04 | Litton Systems, Inc, | Low-power wide-bandwidth klystron |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE568536A (en) * | 1957-06-12 | |||
| US3028519A (en) * | 1959-01-02 | 1962-04-03 | Varian Associates | High frequency tube apparatus and coupled cavity output circuit therefor |
| US3169206A (en) * | 1959-08-06 | 1965-02-09 | Varian Associates | High frequency tube method and apparatus |
| US3104340A (en) * | 1959-10-15 | 1963-09-17 | Litton Electron Tube Corp | Broadband klystron |
| DE1298200B (en) * | 1960-09-06 | 1969-06-26 | Varian Associates | Multi-chamber klystron amplifier tubes with a wide range |
| US3195007A (en) * | 1960-10-28 | 1965-07-13 | Litton Prec Products Inc | Stagger-tuned klystron with cavities resonant outside passband |
| US3248593A (en) * | 1962-02-16 | 1966-04-26 | Gen Electric | Multiple beam radio frequency apparatus having cooperating resonators and mode suppression means |
| US3365607A (en) * | 1963-09-20 | 1968-01-23 | Varian Associates | Electron discharge device |
| US3360679A (en) * | 1964-02-21 | 1967-12-26 | Varian Associates | Electron discharge device having lossy resonant elements disposed within the electromagnetic field pattern of the slow-wave circuit |
| US3594605A (en) * | 1969-10-31 | 1971-07-20 | Varian Associates | Mode suppression means for a clover-leaf slow wave circuit |
-
1971
- 1971-05-17 US US00144411A patent/US3725721A/en not_active Expired - Lifetime
-
1972
- 1972-05-11 GB GB2205972A patent/GB1358489A/en not_active Expired
- 1972-05-15 DE DE2223543A patent/DE2223543C3/en not_active Expired
- 1972-05-16 CA CA142,271A patent/CA954974A/en not_active Expired
- 1972-05-17 JP JP4900972A patent/JPS5643586B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA954974A (en) | 1974-09-17 |
| US3725721A (en) | 1973-04-03 |
| DE2223543C3 (en) | 1982-01-28 |
| JPS5643586B2 (en) | 1981-10-13 |
| DE2223543B2 (en) | 1981-04-16 |
| JPS4849375A (en) | 1973-07-12 |
| DE2223543A1 (en) | 1972-12-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PE20 | Patent expired after termination of 20 years |