GB961187A - Electrostatically focused travelling wave tubes - Google Patents

Electrostatically focused travelling wave tubes

Info

Publication number
GB961187A
GB961187A GB33045/60A GB3304560A GB961187A GB 961187 A GB961187 A GB 961187A GB 33045/60 A GB33045/60 A GB 33045/60A GB 3304560 A GB3304560 A GB 3304560A GB 961187 A GB961187 A GB 961187A
Authority
GB
United Kingdom
Prior art keywords
rods
electrodes
lossy
tubes
waveguide
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
GB33045/60A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB961187A publication Critical patent/GB961187A/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
    • 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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/083—Electrostatic focusing arrangements

Abstract

961,187. Travelling wave tubes. RADIO CORPORATION OF AMERICA. Sept. 26, 1960 [Oct. 29, 1959], No. 33045/60. Heading H1D. In a travelling wave tube provided with a delay line consisting of transverse loading elements in a hollow waveguide a set of electrodes is introduced interleaved between the loading elements to form with the loading elements a periodic electrostatic focusing system. The delay line bars 3, Fig. 3, may or may not have extensions forming drift tubes and the set of electrodes 7 are connected to a strip which may or may not be connected to the waveguide wall or may be so connected by coaxial chokes. In the embodiment of Fig. 9, consecutive delay line bars and electrodes are rotated by 90 degrees, the electrodes being at 45 degrees with respect to the bars so that the structure simulates a helix. The chokes 11 are #/4 open ended coaxial lines with metal rods 15, metal cups 17 and a ceramic sealing tube 19. The waveguide is a stack of metal blocks and plates. The chokes may be used in Fig. 3. In Fig. 12 the partitions 23 with drift tubes 25 have segmental coupling apertures alternately on opposite sides. The stack of square metal blocks and plates are brazed or soldered together. Rods 31 of lossy material extend through and are brazed to a ceramic support 33 brazed to the block. The output is taken from a rectangular waveguide having an oval window and a similar structure is used for the input. The lossy rods 31 are of carbonized ceramic and may taper. The gun comprises indirectly heated cathode 43, focusing electrode 47 and anode 49, the cathode and anode having disc seal leads through ceramic rings. Plate 59 is optional. The lossy rods 31 may be replaced by metal rods of random lengths, or of equal lengths with D.C. connections of unequal lengths or of equal lengths extending through a lossy bar or strip to prevent oscillations on the eletrode structure. The inner surfaces of the drift tubes can be double conical to improve the focusing field distribution. The tubes may be backward wave amplifiers or oscillators or forward wave amplifiers.
GB33045/60A 1959-10-29 1960-09-26 Electrostatically focused travelling wave tubes Expired GB961187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US849604A US3175119A (en) 1959-10-29 1959-10-29 Electrostatically focused traveling wave tube having periodically spaced loading elements

Publications (1)

Publication Number Publication Date
GB961187A true GB961187A (en) 1964-06-17

Family

ID=25306098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33045/60A Expired GB961187A (en) 1959-10-29 1960-09-26 Electrostatically focused travelling wave tubes

Country Status (3)

Country Link
US (1) US3175119A (en)
GB (1) GB961187A (en)
NL (1) NL257375A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3228171A1 (en) * 1981-07-29 1983-02-17 Varian Associates, Inc., 94303 Palo Alto, Calif. DELAY LINE FOR A WALKING TUBE

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668459A (en) * 1970-09-08 1972-06-06 Varian Associates Coupled cavity slow wave circuit and tube using same
FR2544128B1 (en) * 1983-04-06 1985-06-14 Thomson Csf ELECTRON BEAM INJECTION DEVICE FOR RADIO WAVES GENERATOR FOR MICROWAVE
CN108780724B (en) * 2016-03-10 2022-02-22 Nec网络传感器系统株式会社 Slow wave circuit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2843793A (en) * 1953-03-30 1958-07-15 Bell Telephone Labor Inc Electrostatic focusing of electron beams
US2843776A (en) * 1953-03-30 1958-07-15 Bell Telephone Labor Inc Traveling wave tube electron gun
US2845571A (en) * 1953-04-17 1958-07-29 Kazan Benjamin Electrostatically focused traveling wave tube
BE532507A (en) * 1953-10-16 1900-01-01
US2809320A (en) * 1953-11-27 1957-10-08 Zenith Radio Corp Traveling-wave tubes
US2924738A (en) * 1954-01-14 1960-02-09 Varian Associates Electron beam apparatus
US2832001A (en) * 1954-08-27 1958-04-22 Zenith Radio Corp Electron discharge systems
US2894170A (en) * 1955-04-28 1959-07-07 Gen Electric Electron beam amplification apparatus
US2971113A (en) * 1957-10-17 1961-02-07 High Voltage Engineering Corp Acceleration tube for microwave linear accelerator having an integral magnet structure
NL104255C (en) * 1958-12-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3228171A1 (en) * 1981-07-29 1983-02-17 Varian Associates, Inc., 94303 Palo Alto, Calif. DELAY LINE FOR A WALKING TUBE

Also Published As

Publication number Publication date
US3175119A (en) 1965-03-23
NL257375A (en)

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