GB792814A - Travelling wave tube - Google Patents

Travelling wave tube

Info

Publication number
GB792814A
GB792814A GB25284/55A GB2528455A GB792814A GB 792814 A GB792814 A GB 792814A GB 25284/55 A GB25284/55 A GB 25284/55A GB 2528455 A GB2528455 A GB 2528455A GB 792814 A GB792814 A GB 792814A
Authority
GB
United Kingdom
Prior art keywords
cup
gun
helix
tube
helices
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
GB25284/55A
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 GB792814A publication Critical patent/GB792814A/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
    • H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
    • H01J25/36—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field
    • H01J25/38—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field the forward travelling wave being utilised

Landscapes

  • Microwave Tubes (AREA)
  • Details Of Aerials (AREA)

Abstract

792,814. Travelling-wave tubes. STANDARD TELEPHONES & CABLES, Ltd. Sept. 2, 1955 [Sept. 3, 1954], No. 25284/55. Addition to 767,078. Class 39(1). In a travelling-wave amplifier tube in which one or more helices 1, 2 are carried by low loss dielectric rods 3 held within and connected rigidly at each end to a hollow dielectric tube which is rigidly connected to the gun and in which a thin layer of resistive (lossy) material is provided on the dielectric tube, the diameter of the layer being such as to suppress feedback as claimed in Claim 2 of the parent Specification there are two helices 1, 2 carrying different D.C. potentials, the D.C. connection to the helix 2 more remote from the gun being made by the thin layer 11 of resistive (lossy: material. The ceramic rods 3 are common to the two helices and are held by cups 4, 7 surrounding the gun and collector while similar cups 5, 6 surround the helix ends ; cups 4, 5, 6, 7 form inner choke sleeve members co-operating with rect angular waveguide feeders coupling being achieved by L probes 8, 9 and hollow impedance matching members 13. The sleeves 5, 6 are secured to dielectric tube 10. The lossy coating 11 is continuous from end to end of the dielectric tube except for a ring-shaped region near the gun end and the parts are respectively connected to cup 6 via ring 12 and directly to cup 5. The D.C. connection to helix 2 is thus via L probe 9, ring 12, resistive coating 11, clamp 17 and lead 15 passing to the base of the tube through insulating bushing 14. while D.C. to helix 1 is through antenna 8, cup 5, impedance matching member 13, cup 4 and lead 16. Specification 787,686 is referred to.
GB25284/55A 1954-09-03 1955-09-02 Travelling wave tube Expired GB792814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE792814X 1954-09-03

Publications (1)

Publication Number Publication Date
GB792814A true GB792814A (en) 1958-04-02

Family

ID=6707965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25284/55A Expired GB792814A (en) 1954-09-03 1955-09-02 Travelling wave tube

Country Status (2)

Country Link
US (1) US2921225A (en)
GB (1) GB792814A (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL135247C (en) * 1946-10-22
FR951204A (en) * 1947-08-01 1949-10-19 Materiel Telephonique Electron tubes for microwaves
GB668725A (en) * 1948-06-07 1952-03-19 Standard Telephones Cables Ltd Improvements in or relating to electron discharge devices
US2487332A (en) * 1949-03-15 1949-11-08 Northrop Aircraft Inc Delay device
US2585582A (en) * 1949-07-07 1952-02-12 Bell Telephone Labor Inc Electron gun
US2766398A (en) * 1953-04-03 1956-10-09 Itt Electron discharge device
US2806177A (en) * 1953-05-05 1957-09-10 Hughes Aircraft Co Signal delay tube
US2806974A (en) * 1954-07-06 1957-09-17 Hughes Aircraft Co Plasma amplifiers
US2941739A (en) * 1958-06-12 1960-06-21 Ibm Record tape loading mechanism

Also Published As

Publication number Publication date
US2921225A (en) 1960-01-12

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