GB582171A - Improvements in oscillation generators of the velocity modulation type - Google Patents

Improvements in oscillation generators of the velocity modulation type

Info

Publication number
GB582171A
GB582171A GB6279/42A GB627942A GB582171A GB 582171 A GB582171 A GB 582171A GB 6279/42 A GB6279/42 A GB 6279/42A GB 627942 A GB627942 A GB 627942A GB 582171 A GB582171 A GB 582171A
Authority
GB
United Kingdom
Prior art keywords
grid
antinode
bent
symmetrical
cathode
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
GB6279/42A
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
Priority to NL74578D priority Critical patent/NL74578C/xx
Priority to BE474452D priority patent/BE474452A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB6279/42A priority patent/GB582171A/en
Priority to US511094A priority patent/US2485661A/en
Publication of GB582171A publication Critical patent/GB582171A/en
Priority to FR941877D priority patent/FR941877A/en
Priority to ES177015A priority patent/ES177015A1/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
    • H01J25/06—Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation, e.g. Lüdi-Klystron
    • H01J25/08—Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation, e.g. Lüdi-Klystron with electron stream perpendicular to the axis of the resonator

Landscapes

  • Microwave Tubes (AREA)

Abstract

582,171. Yelocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd., and ROACH, R. G. May 8, 1942, No. 6279. [Class 39 (i)] In a velocity modulated oscillation generator, a variable-mu grid is interposed in the path of the electron beam so that the dimension of the beam perpendicular to the electric vector of the electric field in the resonator can be shortened as the frequency increases ; the beam current is correspondingly reduced. As shown in Fig. 1, the oscillator may be of the type in which the beam from an elongated cathode 5 passes through a tuned coaxial line 3, 4 to the collector 6. The grid 7 may be uniformly slotted and bent, as shown, or flat or bent with tapered slot, or inclined, or a wound grid of any similar properties. The widest or most permeable part of the grid is opposite an antinode ; if the resonator system is symmetrical, this part is in the middle of the grid, but it may be at one end, so that grid and cathode may be reduced to half of the symmetrical case. If the antinode moves with frequency variation, the best position of the grid is fixed at the highest frequency to be used. Specification 537,490 is referred to.
GB6279/42A 1942-05-08 1942-05-08 Improvements in oscillation generators of the velocity modulation type Expired GB582171A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL74578D NL74578C (en) 1942-05-08
BE474452D BE474452A (en) 1942-05-08
GB6279/42A GB582171A (en) 1942-05-08 1942-05-08 Improvements in oscillation generators of the velocity modulation type
US511094A US2485661A (en) 1942-05-08 1943-11-20 Oscillation generator of the velocity modulation type
FR941877D FR941877A (en) 1942-05-08 1946-11-21 Improvements to speed modulation type oscillation generators
ES177015A ES177015A1 (en) 1942-05-08 1947-02-28 IMPROVEMENTS IN OSCILLATION GENERATORS OF THE SPEED MODULATION TYPE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6279/42A GB582171A (en) 1942-05-08 1942-05-08 Improvements in oscillation generators of the velocity modulation type

Publications (1)

Publication Number Publication Date
GB582171A true GB582171A (en) 1946-11-07

Family

ID=9811609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6279/42A Expired GB582171A (en) 1942-05-08 1942-05-08 Improvements in oscillation generators of the velocity modulation type

Country Status (6)

Country Link
US (1) US2485661A (en)
BE (1) BE474452A (en)
ES (1) ES177015A1 (en)
FR (1) FR941877A (en)
GB (1) GB582171A (en)
NL (1) NL74578C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2657329A (en) * 1950-02-21 1953-10-27 Sperry Corp Traveling wave tube
BE526801A (en) * 1953-02-27
US3076117A (en) * 1959-04-27 1963-01-29 Gen Electric Parametric energy converter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2048227A (en) * 1930-03-19 1936-07-21 Rca Corp Vacuum tube
US2064469A (en) * 1933-10-23 1936-12-15 Rca Corp Device for and method of controlling high frequency currents
US2169396A (en) * 1936-05-08 1939-08-15 Bell Telephone Labor Inc Signal-translating apparatus
GB537490A (en) * 1939-12-22 1941-06-24 Standard Telephones Cables Ltd Improvements in or relating to electron discharge apparatus
BE469836A (en) * 1940-08-02
US2407706A (en) * 1942-05-30 1946-09-17 Rca Corp Electron discharge device

Also Published As

Publication number Publication date
NL74578C (en)
ES177015A1 (en) 1947-04-16
BE474452A (en)
US2485661A (en) 1949-10-25
FR941877A (en) 1949-01-24

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