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GB914307A - Improvements in or relating to electron discharge devices for generating high frequency oscillations - Google Patents

Improvements in or relating to electron discharge devices for generating high frequency oscillations

Info

Publication number
GB914307A
GB914307A GB8900/58A GB890058A GB914307A GB 914307 A GB914307 A GB 914307A GB 8900/58 A GB8900/58 A GB 8900/58A GB 890058 A GB890058 A GB 890058A GB 914307 A GB914307 A GB 914307A
Authority
GB
United Kingdom
Prior art keywords
cavity
resonator
reflector
coupling
auxiliary
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
Application number
GB8900/58A
Inventor
Douglas Jaques Wootton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB8900/58A priority Critical patent/GB914307A/en
Priority to US799666A priority patent/US3197670A/en
Priority to FR789931A priority patent/FR1222059A/en
Publication of GB914307A publication Critical patent/GB914307A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
    • H03B9/02—Generation of oscillations using transit-time effects using discharge tubes using a retarding-field tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/68—Tubes specially designed to act as oscillator with positive grid and retarding field, e.g. for Barkhausen-Kurz oscillators

Landscapes

  • Plasma Technology (AREA)
  • Particle Accelerators (AREA)

Abstract

914,307. High frequency discharge tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 11, 1959 [March 20, 1958], No. 8900/58. Class 39 (1). In a retarding-field oscillator, having electrongun 6, Fig. 2, cavity resonator 12 and a reflector electrode 16 disposed in the resonator, a coupling is provided between the resonator 12 and additional resonator 14 by means of a short coaxial transmission line 15, the auxiliary resonant cavity being such that when its resonant frequency is varied, as by means of screw 22, the resonant frequency of the cavity 12 is also altered. The reflector 16 is supported rigidly by insulating annular ceramic member 17 and the output power may be derived by coupling a waveguide (not shown) to aperture 18. Perpendicular to the axis of the reflector is provided a lead 19 which serves to connect the electrode to a suitable potential. The lead is so placed that the coupling between it and the field in the cavity 14 is at a minimum and is provided with a choke tube 21. The choke may also be in the form of a disc covering the lead aperture externally, Fig. 5 (not shown). In another embodiment the auxiliary cavity 14, Fig. 4, is disposed beside the first cavity 12, and the output waveguide 26 is coupled to the cavity 12 by means of coaxial line 15. The auxiliary resonator is tuned as before by screw 22. The reflector may be thickened so as to form part of the cavity wall. Other tuning means may be employed such as a displaceable wall portion, or a fixed ferrite slug energized by a variable magnetic field.
GB8900/58A 1958-03-20 1958-03-20 Improvements in or relating to electron discharge devices for generating high frequency oscillations Expired GB914307A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB8900/58A GB914307A (en) 1958-03-20 1958-03-20 Improvements in or relating to electron discharge devices for generating high frequency oscillations
US799666A US3197670A (en) 1958-03-20 1959-03-16 Electron discharge devices for generating high frequency oscillations
FR789931A FR1222059A (en) 1958-03-20 1959-03-20 Electronic discharge device generating high frequency oscillations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8900/58A GB914307A (en) 1958-03-20 1958-03-20 Improvements in or relating to electron discharge devices for generating high frequency oscillations

Publications (1)

Publication Number Publication Date
GB914307A true GB914307A (en) 1963-01-02

Family

ID=9861471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8900/58A Expired GB914307A (en) 1958-03-20 1958-03-20 Improvements in or relating to electron discharge devices for generating high frequency oscillations

Country Status (3)

Country Link
US (1) US3197670A (en)
FR (1) FR1222059A (en)
GB (1) GB914307A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009674A1 (en) * 1989-02-17 1990-08-23 Thomson-Csf Hyperfrequency wave generator device with virtual cathode

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464801A (en) * 1946-04-23 1949-03-22 Raytheon Mfg Co Velocity-modulated electrondischarge device
US2651738A (en) * 1951-07-12 1953-09-08 Univ Ohio State Res Found Wide range inductively-tuned oscillator
US2667598A (en) * 1951-11-30 1954-01-26 Rca Corp Electron discharge apparatus utilizing a cavity resonator
US2794931A (en) * 1952-04-08 1957-06-04 Raytheon Mfg Co Retarding field oscillators
US2789250A (en) * 1952-07-30 1957-04-16 Varian Associates High frequency device
US2815467A (en) * 1954-12-23 1957-12-03 Varian Associates High frequency tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009674A1 (en) * 1989-02-17 1990-08-23 Thomson-Csf Hyperfrequency wave generator device with virtual cathode
FR2643506A1 (en) * 1989-02-17 1990-08-24 Thomson Csf VIRTUAL CATHODE MICROWAVE WAVE GENERATING DEVICE
US5113154A (en) * 1989-02-17 1992-05-12 Thomson-Csf Microwave generator device with virtual cathode

Also Published As

Publication number Publication date
FR1222059A (en) 1960-06-08
US3197670A (en) 1965-07-27

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