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US3151267A - Travelling wave tube including tuning slide within adjoining waveguide section - Google Patents

Travelling wave tube including tuning slide within adjoining waveguide section Download PDF

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Publication number
US3151267A
US3151267A US78890A US7889060A US3151267A US 3151267 A US3151267 A US 3151267A US 78890 A US78890 A US 78890A US 7889060 A US7889060 A US 7889060A US 3151267 A US3151267 A US 3151267A
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US
United States
Prior art keywords
decoupling
wave tube
delay line
wave guide
tuning slide
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 - Lifetime
Application number
US78890A
Other languages
English (en)
Inventor
Gross Franz
Heynisch Hinrich
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US3151267A publication Critical patent/US3151267A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • 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
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices

Definitions

  • a tube for generating mircowaves comprising a delay line, coupled with an electron beam, which is closed at both ends so as to reflect the electromagnetic wave, the delay line being thus adapted to resonate, that is, to form a line resonator.
  • the high frequency energy is thereby decoupled from a hollow space resonator or wave guide in which is arranged the delay line.
  • the delay line can in such tube be varied as to its geometric dimensions for the purpose of tuning-through over a broad frequency range.
  • the hollow space resonator can moreover be detuned by means of a shunt slide which is disposed at the side of the resonator opposite the decoupling side thereof and separated from the vacuum vessel by a mica window.
  • the above indicated generator tube provides only for a very loose coupling between the delay line and the resonator.
  • the tuning devices require a considerable structural expenditure since the mechanical detuning of the delay line must be eiiected over a vacuumtight membrane, calling in addition to the vacuumtight window at the decoupling point, for a further window required in the tube envelope for the shunt slide.
  • the invention proposes, in connection with a travelling wave tube for generating millimeter waves, comprising an electron beam producing system and a delay line forming a line resonator as well as a trap for the electron beam, to firmly couple the delay line, at the collector side, over an intermediate member containing the trap and over a vacuumtight window, with a decoupling wave guide and to provide in the latter a tuning slide.
  • the firm coupling between the delay line and the decoupling wave guide provides for optimum output decoupling and at the same time for broad detuning of the line resonator by the tuning slide.
  • the decoupling wave guide is in the travelling wave tube according to the invention preferably of rectangular shape.
  • the decoupling of the high frequency energy is advantageously eiiected over a gap between the tuning slide and the wall of the decoupling conductor.
  • an apertured shutter in the tuning slide or a Lecher line branching oii between the tuning slide and the vacuumtight window could likewise be utilized for efiecting the decoupling.
  • a wave guide having an opening which is cross sectionally the same as that of the decoupling wave guide and having disposed therein a narrow arcuately shaped longitudinal web extending in the direction of the delay line.
  • the arcuately shaped longitudinal web has the shape of a keel similar, for example, to that of a sail boat, and is arranged so that the steep flank thereof faces in the direction of the electron beam.
  • a bore for trapping the beam electrons.
  • the delay line is advantageously made in the form of a double comb line with the teeth thereof staggered in the direction of the tube axis by a halt period length of the geometric structure of the line.
  • the vacuum vessel or envelope 1 contains a delay line 2 made in the form of a double comb line with the teeth of one comb staggered with respect to the teeth of the other comb by one-half period length of the geometric structure of the line.
  • the electrons of the beam 3 are propagated between the tips of the teeth of the two combs and impact upon the walls of the bore 6 in a longitudinally extending fin shaped member 5 of the intermediate member 4 which represents a tapered wave guide.
  • the tapering of the intermediate member 4, which is a matching member, is effected by the arcuate keellike shape of the narrow longitudinal member 5.
  • a window 8 made, for example, of mica, such closure member forming the connection between the intermediate member 4 and the decoupling wave guide 9.
  • Numeral it indicates the tuning slide, made of electrically conductive material, which is disposed within the likewise rectangular inner opening of the decoupling wave guide 9 and movable therein longitudinally of the delay line in the direction indicated by arrows 12 and 13.
  • the decoupling of the high frequency energy is: efiected over the gap 11 between the tuning slide 19 and the wall of the decoupling wave guide 9.
  • the operatively effective line length of the line resonator formed by the delay line 2, which is at the cathode side likewise closed to provide reflection, can be altered by shifting the tuning slide 10.
  • the resonance wave length of the individual oscillation ranges of the line resonator can thereby be detuned so that the traveling wave tube according to the invention can be operated within a very broad frequency band by means of electrical and mechanical through-tuning.
  • the invention is not inherently limited to the details of the described embodiment. It is, for example, particularly possible to utilize the tuning slide directly as a matching transformer in place of the intermediate member 4.
  • a travelling wave tube for generating millimeter waves having an electron beam producing system and a closed delay line forming a line resonator which reflects the electromagnetic wave at each end thereof and having a trap for the electron beam, comprising at the collector side an intermediate member containing said trap, a decoupling wave guide, means forming a vacuumtight window for firmly coupling said delay line with said intermediate member and the latter with said decoupling wave guide, and means forming a tuning slide disposed within said decoupling wave guide.
  • a travelling wave tube according to claim 1, wherein said decoupling wave guide is of rectangular shape.
  • a travelling wave tube wherein said intermediate member is a rectangularly shape wave guide With an arcuate fin shaped member formed therein which extends longitudinally in the direction of the electron beam, a bore being formed in said longitudinal web for trapping the electron beam.
  • a travelling wave tube according to claim 4, wherein said window between said intermediate member and said decoupling wave guide is made of a material selected from the class of materials including ceramics and mica.
  • a travelling wave tube wherein said delay line is a double comb-like structure with the teeth of one comb member staggered in electron beam direction with respect to the teeth of the other comb member.

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  • Microwave Tubes (AREA)
US78890A 1960-04-01 1960-12-28 Travelling wave tube including tuning slide within adjoining waveguide section Expired - Lifetime US3151267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES67875A DE1121231B (de) 1960-04-01 1960-04-01 Laufzeitroehre zur Erzeugung von Millimeterwellen mit einer als Leitungsresonator wirkenden Verzoegerungsleitung

Publications (1)

Publication Number Publication Date
US3151267A true US3151267A (en) 1964-09-29

Family

ID=7499883

Family Applications (1)

Application Number Title Priority Date Filing Date
US78890A Expired - Lifetime US3151267A (en) 1960-04-01 1960-12-28 Travelling wave tube including tuning slide within adjoining waveguide section

Country Status (5)

Country Link
US (1) US3151267A (fr)
DE (1) DE1121231B (fr)
FR (1) FR1281736A (fr)
GB (1) GB950637A (fr)
NL (2) NL130847C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436586A (en) * 1965-01-15 1969-04-01 Siemens Ag Frequency modulation tube for the generation or amplification of millimeter waves with a delay line acting as a line resonator
CN103632907A (zh) * 2012-08-23 2014-03-12 中国科学院电子学研究所 带状注速调管多间隙腔输出装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648272A1 (fr) * 1989-06-13 1990-12-14 Thomson Tubes Electroniques Tube hyperfrequence a sortie coaxiale avec le collecteur

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510639A (en) * 1948-03-02 1950-06-06 Gen Electric Cavity resonator system
US2643353A (en) * 1948-11-04 1953-06-23 Int Standard Electric Corp Traveling wave tube
US2672571A (en) * 1950-08-30 1954-03-16 Univ Leland Stanford Junior High-frequency oscillator
US2699519A (en) * 1949-10-17 1955-01-11 Csf Traveling wave tube comprising coupled output cavity resonators
US2750529A (en) * 1952-03-12 1956-06-12 Bell Telephone Labor Inc Electron discharge device
US2837684A (en) * 1956-04-25 1958-06-03 Raytheon Mfg Co Traveling wave devices
US2856555A (en) * 1955-05-18 1958-10-14 Int Standard Electric Corp Traveling wave tube
US2922956A (en) * 1956-02-21 1960-01-26 Raytheon Co Traveling wave oscillator systems
US2934671A (en) * 1958-11-04 1960-04-26 Microwave resonant system with tunable
US2979636A (en) * 1959-01-05 1961-04-11 Magid Max Wave guide-to-coaxial line coupling for traveling wave amplifiers

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510639A (en) * 1948-03-02 1950-06-06 Gen Electric Cavity resonator system
US2643353A (en) * 1948-11-04 1953-06-23 Int Standard Electric Corp Traveling wave tube
US2699519A (en) * 1949-10-17 1955-01-11 Csf Traveling wave tube comprising coupled output cavity resonators
US2672571A (en) * 1950-08-30 1954-03-16 Univ Leland Stanford Junior High-frequency oscillator
US2750529A (en) * 1952-03-12 1956-06-12 Bell Telephone Labor Inc Electron discharge device
US2856555A (en) * 1955-05-18 1958-10-14 Int Standard Electric Corp Traveling wave tube
US2922956A (en) * 1956-02-21 1960-01-26 Raytheon Co Traveling wave oscillator systems
US2837684A (en) * 1956-04-25 1958-06-03 Raytheon Mfg Co Traveling wave devices
US2934671A (en) * 1958-11-04 1960-04-26 Microwave resonant system with tunable
US2979636A (en) * 1959-01-05 1961-04-11 Magid Max Wave guide-to-coaxial line coupling for traveling wave amplifiers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436586A (en) * 1965-01-15 1969-04-01 Siemens Ag Frequency modulation tube for the generation or amplification of millimeter waves with a delay line acting as a line resonator
CN103632907A (zh) * 2012-08-23 2014-03-12 中国科学院电子学研究所 带状注速调管多间隙腔输出装置
CN103632907B (zh) * 2012-08-23 2015-09-30 中国科学院电子学研究所 带状注速调管多间隙腔输出装置

Also Published As

Publication number Publication date
GB950637A (en) 1964-02-26
FR1281736A (fr) 1962-01-12
NL260902A (fr) 1900-01-01
DE1121231B (de) 1962-01-04
NL130847C (fr) 1900-01-01

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