GB586122A - Improvements in tunable electric resonators for ultra high frequencies - Google Patents

Improvements in tunable electric resonators for ultra high frequencies

Info

Publication number
GB586122A
GB586122A GB1389542A GB1389542A GB586122A GB 586122 A GB586122 A GB 586122A GB 1389542 A GB1389542 A GB 1389542A GB 1389542 A GB1389542 A GB 1389542A GB 586122 A GB586122 A GB 586122A
Authority
GB
United Kingdom
Prior art keywords
piston
tube
tuning
insulating
resonator
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
GB1389542A
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
Priority to GB1389542A priority Critical patent/GB586122A/en
Priority to FR939296D priority patent/FR939296A/en
Publication of GB586122A publication Critical patent/GB586122A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/202—Coaxial filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/24—Terminating devices
    • H01P1/28—Short-circuiting plungers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

586,122. Tuning pistons. STANDARD TELEPHONES & CABLES, Ltd., FREMLIN, J. H., and JAQUES, T. A. J. Oct. 2, 1942, No. 13895. [Classes 40 (iii) and 40 (v)] A piston for tuning a resonator of the waveguide or coaxial conductor type comprises a number of sections which, with the tube in which it moves, form transmission line elements which are alternately of high and low characteristic impedance and so transmit one or more ranges of wavelengths and reflect another range. As shown in Fig. 1, the piston comprises portions 3 of a diameter approaching that of the tube alternating with portions 4 of small diameter fitted with insulating discs of polystyrene to locate the piston on the tube. The piston shaft may be hollow to provide a conduit for a conductor 5 looped at, 6 for drawing energy from the resonator. In a modification, Fig. 4, for tuning a velocity-modulation tube similar to that described in Specification 537,490, the piston comprises alternate members of conducting and insulating material. The insulating members in both arrangements may be of the form shown in Fig. 3. Other dispositions of insulating material for locating the piston in the tube are referred to. Design formulµ are given in the Specification. Resonators tuned by such pistons may be used in wave meters and harmonic generators. Specifications 579,414 and 581,883 also are referred to.
GB1389542A 1942-10-02 1942-10-02 Improvements in tunable electric resonators for ultra high frequencies Expired GB586122A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1389542A GB586122A (en) 1942-10-02 1942-10-02 Improvements in tunable electric resonators for ultra high frequencies
FR939296D FR939296A (en) 1942-10-02 1946-08-29 Improvements to electric filters for ultra-short waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1389542A GB586122A (en) 1942-10-02 1942-10-02 Improvements in tunable electric resonators for ultra high frequencies

Publications (1)

Publication Number Publication Date
GB586122A true GB586122A (en) 1947-03-07

Family

ID=10031330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1389542A Expired GB586122A (en) 1942-10-02 1942-10-02 Improvements in tunable electric resonators for ultra high frequencies

Country Status (2)

Country Link
FR (1) FR939296A (en)
GB (1) GB586122A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829352A (en) * 1953-12-24 1958-04-01 Varian Associates Tunable waveguide short

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829352A (en) * 1953-12-24 1958-04-01 Varian Associates Tunable waveguide short

Also Published As

Publication number Publication date
FR939296A (en) 1948-11-09

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