DE1052583B - Traveling field pipes - Google Patents

Traveling field pipes

Info

Publication number
DE1052583B
DE1052583B DEL19801A DEL0019801A DE1052583B DE 1052583 B DE1052583 B DE 1052583B DE L19801 A DEL19801 A DE L19801A DE L0019801 A DEL0019801 A DE L0019801A DE 1052583 B DE1052583 B DE 1052583B
Authority
DE
Germany
Prior art keywords
traveling wave
wave tube
damping
helix
tube according
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.)
Pending
Application number
DEL19801A
Other languages
German (de)
Inventor
Walter Friz
Dr Werner Klein
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.)
Alcatel Lucent Deutschland AG
Original Assignee
Standard Elektrik Lorenz AG
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 claimed from US221862A external-priority patent/US2788465A/en
Priority to FR65622D priority Critical patent/FR65622E/en
Priority to DEL18478A priority patent/DE973327C/en
Application filed by Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Priority to DEL19801A priority patent/DE1052583B/en
Priority claimed from DEL21266A external-priority patent/DE1042140B/en
Priority to FR69084D priority patent/FR69084E/en
Publication of DE1052583B publication Critical patent/DE1052583B/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • 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
    • 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
    • H01J23/06—Electron or ion guns
    • H01J23/065—Electron or ion guns producing a solid cylindrical beam
    • 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
    • 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
    • H01J23/087—Magnetic focusing arrangements
    • 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
    • H01J23/087—Magnetic focusing arrangements
    • H01J23/0876—Magnetic focusing arrangements with arrangements improving the linearity and homogeniety of the axial field, e.g. field straightener
    • 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
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H01J23/26—Helical slow-wave structures; Adjustment therefor
    • 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
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H01J23/30—Damping arrangements associated with slow-wave structures, e.g. for suppression of unwanted oscillations
    • 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
    • H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
    • H01J23/42—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit the interaction circuit being a helix or a helix-derived slow-wave structure
    • 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
    • H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
    • H01J23/48—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit for linking interaction circuit with coaxial lines; Devices of the coupled helices type
    • H01J23/50—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit for linking interaction circuit with coaxial lines; Devices of the coupled helices type the interaction circuit being a helix or derived from a helix
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/30—Angle modulation by means of transit-time tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
    • H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
    • H03H2/006—Transmitter or amplifier output circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/04—Arrangements for indicating calls or supervising connections for calling or clearing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Microwave Tubes (AREA)

Description

DEUTSCHESGERMAN

In der Patentanmeldung L18478VIIIc/21g hat das Verbindungsrohr zwischen den Tonnenpaaren am Ein- und Ausgang der Röhre mechanische und hochfrequenztechnische Aufgaben zu erfüllen, insbesondere die Unterdrückung unerwünschter hochfrequenter Rückkopplungen. Die Wendel selbst ist dagegen innerhalb des Rohres zwischen mindestens drei dielektrischen Stäben gehaltert. Die Stäbe sind in den beiden Abschlußtonnen gelagert. Bei langen Wendeln ist diese Lagerung an den beiden Wendelenden ungenügend, und es ist erforderlich, der Wendel eine größere Stabilität zu geben. Dies wird bei einer Wanderfeldröhre nach der Hauptpatentanmeldung, bei der das dielektrische Rohr innen und/oder außen mit einem Dämpfungsbelag versehen ist, dadurch erreicht, daß die Haltestäbe der Wendel mittels wenigstens einer Halteschelle auf diese gepreßt sind.In patent application L18478VIIIc / 21g has the connecting pipe between the barrel pairs at the entrance and exit of the pipe is mechanical and high-frequency To fulfill tasks, in particular the suppression of undesired high frequency Feedback. The coil itself, however, is between at least three within the tube dielectric rods supported. The bars are stored in the two closing bins. With long coils this storage at the two ends of the helix is insufficient, and it is necessary, the helix a to give greater stability. In the case of a traveling wave tube after the main patent application, this is in which the dielectric tube is provided with a damping coating on the inside and / or outside, thereby achieving that the holding rods of the helix are pressed onto this by means of at least one holding clamp.

Die an sich bekannte Anpressung der Hältestäbe an die Wendel mittels Schellen führt in der Regel zu Feldstörungen innerhalb der Röhre, die aber bei einer Röhre nach der Hauptpatentanmeldung durch die auf dem dielektrischen Rohr angebrachte Dämpfung auf einen unschädlichen Wert vermindert werden.The known pressing of the holding rods on the helix by means of clamps usually leads to Field disturbances within the tube, which, however, occur in a tube according to the main patent application by the The attenuation applied to the dielectric tube can be reduced to a harmless value.

Bringt man zur Entkopplung von Ein- und-Ausgangskreis auf den Wendelhalterungsstäben eine zusätzliche lokalisierte Dämpfung, beispielsweise durch Besprühen mit kolloidalem Graphit an, so wird bei Verwendung einer einzigen Schelle diese zweckmäßig im Maximum des Dämpfungsbelages angeordnet. Bei größerer Längenausdehnung der lokalisierten Dämpfung ist es jedoch vorteilhaft, zwei Schellen diesseits und jenseits des Maximums im Gebiet kräftiger Dämpfung anzubringen. Dies hat die Vorteile, daß die Wendel an mindestens einer weiteren Stelle im Raum zwischen ihrer Lagerung an den Wendelenden fixiert ist und daß die auf den Haltestäben aufgebrachte Dämpfungsschicht gegen die Wendel gepreßt wird und somit gleichzeitig eine erschütterungsunempfmdliche lokalisierte Zusatzdämpfung verwirklicht werden kann. Bereits in der Übergangszone zwischen schwach und stark gedämpfter Wendelstrecke, die eine gewisse axiale Mindestlänge haben muß, klingt das radiale Wendelfeld ab, so daß eine Störung des Feldes außerhalb des Zylinders, der durch den Durchmesser der Anordnung Wendel plus Haltestäbe begrenzt wird, praktisch nicht mehr eintritt und daher auch keine Beeinflussung der Anpassung durch die Halteschellen mehr beobachtet wird.One brings to the decoupling of the input and output circuit on the helical support rods an additional localized damping, for example by Spraying with colloidal graphite, this is useful when using a single clamp arranged at the maximum of the damping lining. With greater linear expansion of the localized damping However, it is advantageous to use two clamps on this side and on the other side of the maximum in the area more powerfully To attach damping. This has the advantage that the helix is in at least one other place in the Space is fixed between their storage on the helical ends and that the applied to the holding rods Damping layer is pressed against the helix and thus at the same time a vibration insensitive localized additional attenuation can be realized. Already in the transition zone between weakly and strongly damped spiral sections that have a certain minimum axial length must, the radial helical field decays, so that a disturbance of the field outside of the cylinder, the is limited by the diameter of the arrangement of helix plus retaining rods, practically no longer occurs and therefore no influence of the adjustment by the retaining clamps is observed any more.

Die Erfindung soll noch an Hand eines Beispieles näher erläutert werden.The invention will be explained in more detail using an example.

Fig. 1 zeigt eine Anordnung gemäß der Erfindung mit dem dielektrischen Rohr 1 zur Verbindung der Tonnenpaare des Ein- und Ausgangskreises 2, 3 bzw. 4, 5. Die zur Entkopplung von Ein- und Ausgangs-Fig. 1 shows an arrangement according to the invention with the dielectric tube 1 for connecting the barrel pairs of the input and output circuit 2, 3 and 4, 5. The decoupling of input and output

Zusatz zur Patentanmeldung L 18478 VIII a /21 gAddition to patent application L 18478 VIII a / 21 g

Anmelder:
Standard Elektrik LorenzApplicant:
Standard electrical system Lorenz

Aktiengesellschaft,
Stuttgart-Zuffenhausen,
Hellmuth-Hirth-Str. 42Corporation,
Stuttgart-Zuffenhausen,
Hellmuth-Hirth-Str. 42

Dr. Werner Klein, Korntal (Württ.),Dr. Werner Klein, Korntal (Württ.),

und Walter Friz, Fairborn, Ohio (V. St. A.),and Walter Friz, Fairborn, Ohio (V. St. A.),

sind als Erfinder genannt wordenhave been named as inventors

kreis notwendige lokalisierte Dämpfung 6 ist hier am Ende des eingangsseitigen Drittels der Wendel auf den Wendelhaltestäben aufgebracht. Die Länge des Dämpfungsstückes beträgt einschließlich der Übergangszone beispielsweise 50 mm bei einer Länge der Wendel 7 von 130 mm. Innerhalb des lokalisierten Dämpfungsstückes 6 befinden sich zwei Halteschellen 8 und 9, die die dort mit einem Dämpfungsbelag versehenen Haltestäbe 10 gegen die Wendel pressen und so eine erschütterungsunempfindliche lokalisierte Dämpfung verwirklichen. Die Halteschellen können auf beliebige Art und Weise um die Haltestäbe gelegt werden. Beispielsweise kann die in Fig. 2 gezeigte Anordnung Verwendung finden. Um die Wendel 7 mit den Haltestäben 10 ist ein vorgebogenes Schellenblech 11 gelegt und an einer Seite verschweißt.The localized damping 6 necessary for the circle is applied here to the helix holding rods at the end of the input-side third of the helix. The length of the damping piece including the transition zone is, for example, 50 mm with a length of the helix 7 of 130 mm. Within the localized damping piece 6 there are two retaining clips 8 and 9 which press the retaining rods 10, which are provided there with a damping coating, against the helix and thus achieve localized damping that is insensitive to vibration. The holding clamps can be placed around the holding rods in any way. For example, the arrangement shown in FIG. 2 can be used. A pre-bent bracket plate 11 is placed around the helix 7 with the holding rods 10 and welded on one side.

Zum Ausgleich der verschieden großen Ausdehnungskoeffizienten von Wendel und Haltestäben sieht es die Erfindung als einen weiteren Vorteil an, die Schellen elastisch gegen die Haltestäbe gepreßt anzuordnen. Dadurch wird auch bei größeren Temperaturunterschieden beim Betrieb der Röhre eine vibrationsunempfindliche Dämpfung der Röhre erreicht.To compensate for the different large expansion coefficients of the helix and retaining rods it is the invention as a further advantage to arrange the clamps pressed elastically against the holding rods. This makes the tube insensitive to vibrations even with larger temperature differences when operating the tube Attenuation of the tube achieved.

Fig. 3 zeigt eine günstige Ausführungsform einer elastischen Halteschelle. Die Haltestäbe 10 werden von den beiden Schellenhälften 12 mittels einer federnden Verbindung, die beispielsweise aus aufgeschweißten Drahtbügeln bestehen kann, gegen die Wendel 7 Fig. 3 shows a favorable embodiment of an elastic retaining clip. The holding rods 10 are held against the helix 7 by the two clamp halves 12 by means of a resilient connection which, for example, can consist of welded-on wire brackets

gepreßt. An der gegenüberliegenden Trennstelle werden die beiden Schellenhälften durch einen aufgeschweißten Blechstreifen 13 verbunden.pressed. The two halves of the clamp are welded on at the opposite separation point Sheet metal strips 13 connected.

Claims (6)

Patentansprüche:Patent claims: 1. Wanderfeldröhre, bei welcher nach Patentanmeldung L18478 VIII c/21g die Wendel mit Ausnahme der Ein- und Auskopplungswindungen in einigem Abstand von einem innen und/oder außen mit einem Dämpfungsbelag versehenen dielektrischen Rohr innerhalb des Vakuumgefäßes umgeben ist, dadurch gekennzeichnet, daß die Haltestäbe der Wendel mittels wenigstens einer Halteschelle auf diese gepreßt sind.1. Traveling wave tube, in which, according to patent application L18478 VIII c / 21g, the filament with Except for the coupling and decoupling turns at some distance from an inside and / or outside surrounded with a damping coating dielectric tube within the vacuum vessel is, characterized in that the holding rods of the helix by means of at least one Clamp are pressed onto this. 2. Wanderfeldröhre nach Anspruch 1, dadurch gekennzeichnet, daß die Halteschelle in sich geschlossen ist.2. Traveling wave tube according to claim 1, characterized in that the retaining clip is self-contained is. 3. Wanderfeldröhre nach Anspruch 1, dadurch gekennzeichnet, daß in der Umgebung der Halteschelle(n) auf den Haltestäben zusätzlich eine Dämpfungsschicht angebracht ist.3. Traveling wave tube according to claim 1, characterized in that in the vicinity of the retaining clip (s) A damping layer is also attached to the support rods. 4. Wanderfeldröhre nach Anspruch 3, dadurch gekennzeichnet, daß bei Verwendung einer einzigen Halteschelle diese im Maximum der lokalisierten Dämpfung angebracht ist.4. traveling wave tube according to claim 3, characterized in that when using a single Clamp this is attached to the maximum of the localized damping. 5. Wanderfeldröhre nach Anspruch 3, dadurch gekennzeichnet, daß bei Verwendung von zwei Halteschellen diese beiderseits des Maximums der lokalisierten Dämpfung angeordnet sind.5. traveling wave tube according to claim 3, characterized in that when using two Clamps these are arranged on both sides of the maximum of the localized damping. 6. Wanderfeldröhre nach Anspruch 1, dadurch gekennzeichnet, daß die Anpressung der Halteschelle gegen die Wendel elastisch erfolgt.6. traveling wave tube according to claim 1, characterized in that the pressure of the retaining clip takes place elastically against the helix. In Betracht gezogene Druckschriften,:
Französische Patentschrift Nr. 993 491.Considered publications:
French patent specification No. 993 491. Hierzu 1 Blatt Zeichnungen1 sheet of drawings © 80Ϊ 769/462 3.59© 80Ϊ 769/462 3.59
DEL19801A 1951-04-19 1954-09-02 Traveling field pipes Pending DE1052583B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR65622D FR65622E (en) 1954-09-02 1953-11-19 Traveling wave electronic device
DEL18478A DE973327C (en) 1951-04-19 1954-04-04 Traveling coil tubes with self-supporting tube system
DEL19801A DE1052583B (en) 1951-04-19 1954-09-02 Traveling field pipes
FR69084D FR69084E (en) 1951-04-19 1955-08-31 Traveling wave electronic device

Applications Claiming Priority (22)

Application Number Priority Date Filing Date Title
US221862A US2788465A (en) 1951-04-19 1951-04-19 Traveling wave electron discharge device
US776923XA 1952-04-08 1952-04-08
DE316934X 1952-04-08
DE734963X 1952-07-05
US778846XA 1952-08-19 1952-08-19
US740852XA 1952-08-19 1952-08-19
US773393XA 1952-08-21 1952-08-21
US773783XA 1952-08-23 1952-08-23
US777224XA 1952-09-29 1952-09-29
US777225XA 1952-10-11 1952-10-11
US773394XA 1952-10-31 1952-10-31
DE745099X 1952-11-07
US756370XA 1952-11-19 1952-11-19
US754861XA 1953-04-01 1953-04-01
DE780806X 1953-04-18
DE771189X 1953-11-27
DE767078X 1954-04-03
DEL18478A DE973327C (en) 1951-04-19 1954-04-04 Traveling coil tubes with self-supporting tube system
DEL19801A DE1052583B (en) 1951-04-19 1954-09-02 Traveling field pipes
DEL21266A DE1042140B (en) 1955-02-26 1955-02-26 Arrangement for bundled guidance of an electron beam over a larger distance, especially for transit tubes
US861229XA 1956-10-26 1956-10-26
US886318XA 1957-05-03 1957-05-03

Publications (1)

Publication Number Publication Date
DE1052583B true DE1052583B (en) 1959-03-12

Family

ID=31982895

Family Applications (2)

Application Number Title Priority Date Filing Date
DEL18478A Expired DE973327C (en) 1951-04-19 1954-04-04 Traveling coil tubes with self-supporting tube system
DEL19801A Pending DE1052583B (en) 1951-04-19 1954-09-02 Traveling field pipes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEL18478A Expired DE973327C (en) 1951-04-19 1954-04-04 Traveling coil tubes with self-supporting tube system

Country Status (2)

Country Link
DE (2) DE973327C (en)
FR (1) FR69084E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156845A (en) * 1959-09-30 1964-11-10 Telefunken Gmbh Conductor centering arrangement for traveling field tube

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250946A (en) * 1961-02-07 1966-05-10 Philips Corp Travelling wave tube, in which an electron beam interacts with a helical delay line, having spurious oscillation suppressing means
FR2630257A1 (en) * 1988-04-19 1989-10-20 Thomson Csf PROGRESSIVE WAVE TUBE HAVING A COUPLING DEVICE BETWEEN ITS DELAY LINE AND EXTERNAL HYPERFREQUENCY CIRCUITS

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR993491A (en) * 1949-06-21 1951-10-31 Csf Device for attaching the propeller and its supports in linear wave propagation tubes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2197123A (en) * 1937-06-18 1940-04-16 Bell Telephone Labor Inc Guided wave transmission
BE483594A (en) * 1947-07-03
US2611102A (en) * 1948-11-13 1952-09-16 Sylvania Electric Prod Traveling wave tube
BE491242A (en) * 1948-12-10
GB664663A (en) * 1949-09-01 1952-01-09 Mullard Radio Valve Co Ltd Improvements in travelling wave tubes
NL87433C (en) * 1952-06-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR993491A (en) * 1949-06-21 1951-10-31 Csf Device for attaching the propeller and its supports in linear wave propagation tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156845A (en) * 1959-09-30 1964-11-10 Telefunken Gmbh Conductor centering arrangement for traveling field tube

Also Published As

Publication number Publication date
FR69084E (en) 1958-09-22
DE973327C (en) 1960-01-21

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