GB625259A - Electron discharge devices of the velocity modulation type - Google Patents

Electron discharge devices of the velocity modulation type

Info

Publication number
GB625259A
GB625259A GB6449/46A GB644946A GB625259A GB 625259 A GB625259 A GB 625259A GB 6449/46 A GB6449/46 A GB 6449/46A GB 644946 A GB644946 A GB 644946A GB 625259 A GB625259 A GB 625259A
Authority
GB
United Kingdom
Prior art keywords
reflecting electrode
resonator
effected
modulation type
electron discharge
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
GB6449/46A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB625259A publication Critical patent/GB625259A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
    • H01J25/30—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is perpendicular to the axis of the resonator or resonators and is radial or disc-like before reflection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
    • H01J25/24—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is in the axis of the resonator or resonators and is pencil-like before reflection

Landscapes

  • Microwave Tubes (AREA)
  • Lasers (AREA)

Abstract

625,259. Velocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd. March 1, 1946, No. 6449. Convention date, Dec. 22, 1943. [Class 39 (i)] In electron discharge tubes of the velocity modulation type, the walls 1, 2, Fig. 1, of the resonator which are sealed through the envelope are of different external diameter and are connected by a threaded sleeve having two portions 16, 18 of corresponding internal diameter, whereby adjustment of the tuning is effected by axial movement of the sleeve. Focusing of the beam is effected by forming the emitting surface of the cathode 7 and the juxta-posed surface of the reflecting electrode 8 of concave shape. Alternatively the reflecting electrode mirror may consist of two electrodes 8, 22, Fig. 4, the characteristic of the mirror being controlled by the difference of potential between them. Specification 582,486 is referred to. The Specification as open to inspection under Sect. 91, describes also a device of the co-axial line type comprising two concentric cylinders 31, 32, Fig. 5 (Cancelled), with a central reflecting electrode 38 surrounded by a ring 42, and two cathodes 36, 361. In another arrangement the electron beam is reflected at an angle to its original direction so as to traverse the resonator at gaps 90 degrees apart: This subject-matter does not appear in the Specification as accepted.
GB6449/46A 1943-12-22 1946-03-01 Electron discharge devices of the velocity modulation type Expired GB625259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR259949X 1943-12-22

Publications (1)

Publication Number Publication Date
GB625259A true GB625259A (en) 1949-06-24

Family

ID=8884936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6449/46A Expired GB625259A (en) 1943-12-22 1946-03-01 Electron discharge devices of the velocity modulation type

Country Status (4)

Country Link
BE (1) BE457970A (en)
CH (1) CH259949A (en)
FR (1) FR960756A (en)
GB (1) GB625259A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944737C (en) * 1951-05-29 1956-06-21 Philips Nv Device for generating ultra-short waves
US3060342A (en) * 1958-11-20 1962-10-23 Philips Corp Reflex klystron having a cavity resonator with a movable wall
GB2132008A (en) * 1982-12-03 1984-06-27 English Electric Valve Co Ltd A method of altering the frequency tuning range of a klystron

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944737C (en) * 1951-05-29 1956-06-21 Philips Nv Device for generating ultra-short waves
US3060342A (en) * 1958-11-20 1962-10-23 Philips Corp Reflex klystron having a cavity resonator with a movable wall
GB2132008A (en) * 1982-12-03 1984-06-27 English Electric Valve Co Ltd A method of altering the frequency tuning range of a klystron

Also Published As

Publication number Publication date
FR960756A (en) 1950-04-25
BE457970A (en)
CH259949A (en) 1949-02-15

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