EP0024590A1 - Slow-wave structure for a travelling-wave tube with periodic magnetic focussing - Google Patents

Slow-wave structure for a travelling-wave tube with periodic magnetic focussing Download PDF

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Publication number
EP0024590A1
EP0024590A1 EP80104634A EP80104634A EP0024590A1 EP 0024590 A1 EP0024590 A1 EP 0024590A1 EP 80104634 A EP80104634 A EP 80104634A EP 80104634 A EP80104634 A EP 80104634A EP 0024590 A1 EP0024590 A1 EP 0024590A1
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EP
European Patent Office
Prior art keywords
delay line
supports
waveguide
intermediate electrodes
line according
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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.)
Withdrawn
Application number
EP80104634A
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German (de)
French (fr)
Inventor
Franz Dr. Gross
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Siemens AG
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Siemens AG
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    • 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

Definitions

  • the invention relates to a delay line for a traveling wave tube with periodic magnetic beam focusing, with in a cylindrical waveguide alternately from opposite sides or from only one side supported by supports, penetrated by the electron beam, and with two electrodes arranged between two successive supports, penetrated by the electron beam.
  • a delay line for traveling wave tubes, in particular high-performance traveling wave tubes, with beam cylinders, which are held alternately from opposite sides by supports and are penetrated by the electron beam, is known from DE-PS 21 46 207.
  • a traveling wave tube interlocking webs are known, which alternately start from mutually opposite points of the inner wall of a cylindrical waveguide and carry symmetrical in the longitudinal direction around the axis of the arrangement extending, the beam passage openings of the webs forming metallic cylinders (beam hole cylinder).
  • An intermediate electrode is present in the middle of the space between two successive webs.
  • the intermediate electrodes are diaphragms whose inner edge distance from the delay line axis is noticeably greater than the outer radius of the beam hole cylinder and their extent in the circumferential direction of the waveguide is so large that they - viewed in the axial direction of the waveguide - cover most of the coupling openings left free by the webs .
  • the present invention has for its object to provide an alternative line with high coupling resistance, good heat dissipation and a small outside diameter.
  • the diameter of the intermediate electrodes is preferably equal to the diameter of the jet cylinder.
  • the intermediate electrodes are expediently fastened to the waveguide via two diametrically arranged transverse webs, and the transverse webs are arranged offset from one another by 90 °.
  • the transverse webs of the intermediate electrodes are designed as solid counter supports, the extent of which - seen in the axial direction of the waveguide - is greater than that of the supports.
  • the delay line according to the invention has the advantage that the capacitive load is only slightly increased by inserting the intermediate electrodes at the upper limit frequency.
  • a capacitive load arises here due to the finite thickness of the intermediate electrodes. The thicker the intermediate electrode, the larger it becomes.
  • the upper limit frequency is therefore only slightly shifted to lower frequencies by inserting the intermediate electrode.
  • the lower Grenzfreqnenz train between the Strahlz y l-Indians and the intermediate electrodes strong longitudinal electric fields, which together with the running of the beam cylinders to the waveguide wall transverse panels greatly increase the field energy in the line cells.
  • the lower cut-off frequency of the new structure is therefore strongly shifted to lower frequencies.
  • a region with a relatively flat dispersion curve and a high coupling resistance arises in the vicinity of the ⁇ point (upper cut-off frequency), which can be used for broadband amplification, specifically where the intermediate electrode acts essentially only as a voltage divider.
  • the loop or the resulting slot in the cross-sectional plane of the intermediate electrode has a substantially higher natural resonance frequency than the main loop in the cross-sectional plane of the jet cylinder supports.
  • the delay line according to the invention is characterized by a small outer diameter, a high coupling resistance and good heat dissipation properties. This enables a short construction and a low weight of the traveling wave tube.
  • the delay line can therefore advantageously be used instead of ring-bridge structures or cavity lines in high-performance and pulse tubes. Another advantage is that the frequency range of the interference modes is very far from the working range of the tube.
  • preferably round supports 2 are arranged one behind the other in a cylindrical waveguide 1. Beam cylinders 3 are held on these supports 2 and are traversed by the electron beam during operation of the traveling wave tube.
  • the intermediate electrodes 5, through which the electron beam passes, are arranged between each two successive supports 2.
  • the intermediate electrodes 5 are rings attached to the waveguide 1 via crosspieces 4.
  • the diameter of the intermediate electrodes 5 is preferably equal to the diameter of the jet cylinders 3.
  • the intermediate electrodes 5 are fastened to the waveguide 1 by means of two diametrically arranged, preferably round transverse webs 4, in such a way that the cross webs 4 are 90 in relation to the supports 2 ° are staggered.
  • the transverse webs 4 of the intermediate electrodes 5 are designed as solid counter supports, the extent of which - seen in the axial direction of the waveguide 1 - is greater than that of the supports 2 to which the jet cylinders 3 are fastened.
  • the size of the opening area 6 significantly influences the steepness of the dispersion curve.
  • FIGS. 5 and 6 show a delay line in which the jet cylinders 3 are connected to the cylindrical waveguide 1 via supports 2 which are alternately offset by 180 °.
  • the intermediate elec Troden 5 are, as in the first embodiment, attached to diametrically arranged crosspieces 4. Columns 2 and crossbars 4 are in turn offset by 90 °.
  • the invention is not restricted to the exemplary embodiments shown.
  • punched flat elements with an opening for the continuous electron beam can be used for the main as well as for the intermediate elements without loss of coupling resistance. This makes the construction of the delay line simple and cheap.
  • the dissipation of the heat loss by incident beam electrons is carried out by the element that has the better heat dissipation properties. This can also be the intermediate element, for example.

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  • Microwave Tubes (AREA)

Abstract

In a delay line for a travelling-wave tube with a PPM system and with beam cylinders (3) mounted via struts (2) in a waveguide (1) and having intermediate electrodes (5) through which the electron beam passes, it is intended that the intermediate electrodes (5) are rings mounted on the waveguide (1) via lateral webs (4) (Figure 1). <IMAGE>

Description

Die Erfindung betrifft eine Verzögerungsleitung für eine Wanderfeldröhre mit periodisch magnetischer Strahlfokussierung, mit in einem zylindrischen Hohlleiter abwechselnd von gegenüberliegenden Seiten oder von nur einer Seite durch Stützen gehalterten, vom Elektronenstrahl durchsetzten Strahlzylindern und mit zwischen jeweils zwei aufeinanderfolgenden Stützen angeordneten, vom Elektronenstrahl durchsetzten Zwischenelektroden.The invention relates to a delay line for a traveling wave tube with periodic magnetic beam focusing, with in a cylindrical waveguide alternately from opposite sides or from only one side supported by supports, penetrated by the electron beam, and with two electrodes arranged between two successive supports, penetrated by the electron beam.

Eine Verzögerungsleitung für Wanderfeldröhren, insbesondere Hochleistungswanderfeldröhren, mit in einem Hohlleiter abwechselnd von gegenüberliegenden Seiten durch Stützen gehalterten, vom Elektronenstrahl durchsetzten Strahlzylindern ist aus der DE-PS 21 46 207 bekannt.A delay line for traveling wave tubes, in particular high-performance traveling wave tubes, with beam cylinders, which are held alternately from opposite sides by supports and are penetrated by the electron beam, is known from DE-PS 21 46 207.

Aus der DE-PS 1 804 959 ist eine Wanderfeldröhre mit ineinandergreifenden Stegen bekannt, die abwechselnd von einander gegenüberliegenden Stellen der Innenwandung eines zylindrischen Hohlleiters ausgehen und symmetrisch in Längsrichtung um die Achse der Anordnung sich erstreckende, die Strahldurchtrittsöffnungen der Stege bildenden metallische Zylinder (Strahllochzylinder) tragen. In der Mitte des Raumes zwischen jeweils zwei aufeinanderfolgenden Stegen ist eine Zwischenelektrode vorhanden. Die Zwischenelektroden sind dabei Blenden, deren Innenkantenabstand von der Verzögerungsleitungsachse merklich größer ist als der Außenradius der Strahllochzylinder und deren Ausdehnung ist in Umfangsrichtung des Hohlleiters derartig groß, daß sie - in Achsrichtung des Hohlleiters gesehen - den größten Teil der von den Stegen frei gelassenen Koppelöffnungen überdecken.From DE-PS 1 804 959 is a traveling wave tube interlocking webs are known, which alternately start from mutually opposite points of the inner wall of a cylindrical waveguide and carry symmetrical in the longitudinal direction around the axis of the arrangement extending, the beam passage openings of the webs forming metallic cylinders (beam hole cylinder). An intermediate electrode is present in the middle of the space between two successive webs. The intermediate electrodes are diaphragms whose inner edge distance from the delay line axis is noticeably greater than the outer radius of the beam hole cylinder and their extent in the circumferential direction of the waveguide is so large that they - viewed in the axial direction of the waveguide - cover most of the coupling openings left free by the webs .

In Hochleistungs-Wanderfeldröhren mit periodischer magnetischer Fokussierung und nicht in die Verzögerungsleitung integrierten Polschuhen müssen kleine Leitungsdurchmesser realisiert werden.Bisher wurden in diesen Röhrentypen, insbesondere in Pulsrohren, vorwiegend Ring-Steg-Strukturen verwendet.In high-performance traveling wave tubes with periodic magnetic focusing and pole pieces that are not integrated in the delay line, small line diameters have to be realized. Previously, ring-bar structures were mainly used in these tube types, especially in pulse tubes.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Alternativleitung mit hohem Koppelwiderstand, guter Warmeabführung und kleinem Außendurchmesser zu schaffen. Zur Lösung dieser Aufgabe wird bei einer Verzögerungsleitung der eingangs genannten Art erfindungsgemäß vorgeschlagen, daß die Zwischenelektroden über Querstege an. dem Hohlleiter befestigte Ringe sind. Der Durchmesser der Zwischenelektroden ist dabei vorzugsweise gleich dem Durchmesser der Strahlzylinder.The present invention has for its object to provide an alternative line with high coupling resistance, good heat dissipation and a small outside diameter. To solve this problem, it is proposed according to the invention in a delay line of the type mentioned at the outset that the intermediate electrodes are connected via transverse webs. rings are attached to the waveguide. The diameter of the intermediate electrodes is preferably equal to the diameter of the jet cylinder.

Zweckmäßig sind die Zwischenelektroden über zwei diametral angeordnete Querstege an dem Hohlleiter befestigt, und die Querstege sind gegenüber den Stützen um 90° gegeneinander versetzt angeordnet.The intermediate electrodes are expediently fastened to the waveguide via two diametrically arranged transverse webs, and the transverse webs are arranged offset from one another by 90 °.

Gemäß einer weiteren Ansgestaltung der Erfindung sind die Querstege der Zwischenelektroden als massive Gegenstützen ausgebildet, deren Ausdehnung - in Achsrichtung des Hohlleiters gesehen - größer ist als die der Stützen.According to a further embodiment of the invention, the transverse webs of the intermediate electrodes are designed as solid counter supports, the extent of which - seen in the axial direction of the waveguide - is greater than that of the supports.

Die erfindungsgemäße Verzögerungsleitung hat den Vorteil, daß durch das Einfügen der Zwischenelektroden bei der oberen Grenzfrequenz die kapazitive Belastung nur wenig vergrößert wird. Eine kapazitive Belastung kommt hier durch die endliche Dicke der Zwischenelektroden zustande. Sie wird umso größer je dicker die Zwischenelektrode ist. Die obere Grenzfrequenz wird daher durch das Einfügen der Zwischenelektrode nur wenig nach tieferen Frequenzen verschoben. Bei der unteren Grenzfreqnenz bilden sich jedoch zwischen den Strahlzyl-indern und den Zwischenelektroden starke elektrische Längsfelder aus, die zusammen mit den von den Strahlzylindern zur Hohlleiterwand verlaufenden Querfeldern die Feldenergie in den Leitungszellen stark vergrößern. Die untere Grenzfrequenz der neuen Struktur wird daher stark nach tieferen Frequenzen verschoben. Es entsteht dabei in der Nähe des π -Pnnktes (obere Grenzfrequenz) ein Bereich mit relativ flacher Dispersionskurve und hohem Koppelwiderstand, der zur breitbandigen Verstärkung ausnutzbar wird, und zwar dort, wo die Zwischenelektrode im wesentlichen nur als Spannungsteiler wirkt. Wichtig für die Wirksamkeit der Verzögerungsleitung ist, daß die Schleife oder der entstehende Schlitz in der Querschnittsebene der Zwischenelektrode eine wesentlich höhere Eigenresonanzfrequenz hat als die Hauptschleife in der Querschnittsebene der Strahlzylinderstützen.The delay line according to the invention has the advantage that the capacitive load is only slightly increased by inserting the intermediate electrodes at the upper limit frequency. A capacitive load arises here due to the finite thickness of the intermediate electrodes. The thicker the intermediate electrode, the larger it becomes. The upper limit frequency is therefore only slightly shifted to lower frequencies by inserting the intermediate electrode. In the lower Grenzfreqnenz However train between the Strahlz y l-Indians and the intermediate electrodes strong longitudinal electric fields, which together with the running of the beam cylinders to the waveguide wall transverse panels greatly increase the field energy in the line cells. The lower cut-off frequency of the new structure is therefore strongly shifted to lower frequencies. A region with a relatively flat dispersion curve and a high coupling resistance arises in the vicinity of the π point (upper cut-off frequency), which can be used for broadband amplification, specifically where the intermediate electrode acts essentially only as a voltage divider. Important for the effectiveness of the delay line is that the loop or the resulting slot in the cross-sectional plane of the intermediate electrode has a substantially higher natural resonance frequency than the main loop in the cross-sectional plane of the jet cylinder supports.

Die erfindungsgemäße Verzögerungsleitung zeichnet sich durch einen kleinen Außendurchmesser, einen hohen Koppelwiderstand und gute Wärmeableitungseigenschaften aus. Damit wird ein kurzer Aufbau und ein niedriges Gewicht der Wanderfeldröhre ermöglicht. Die Verzögerungsleitung kann daher vorteilhaft anstelle von Ring-Steg-Strukturen oder Cavity-Leitungen in Hochleistungs- und Pulsröhren verwendet werden. Als weiterer Vorteil kommt hinzu, daß der Frequenzbereich der Störmoden sehr weit vom Arbeitsbereich der Röhre abliegt.The delay line according to the invention is characterized by a small outer diameter, a high coupling resistance and good heat dissipation properties. This enables a short construction and a low weight of the traveling wave tube. The delay line can therefore advantageously be used instead of ring-bridge structures or cavity lines in high-performance and pulse tubes. Another advantage is that the frequency range of the interference modes is very far from the working range of the tube.

Weitere Einzelheiten der Erfindung sollen an Hand von in den Figuren der Zeichnung dargestellten Ausführungsbeispiel näher erläutert werden.Further details of the invention will be explained in more detail with reference to the embodiment shown in the figures of the drawing.

Dabei zeigen:

  • Fig. 1 einen Längsschnitt durch einen Abschnitt der erfindungsgemäßen Verzögerungsleitung,
  • Fig. 2 eine Draufsicht auf die Anordnung nach Fig. 1,
  • Fig. 3 einen Längsschnitt durch eine andere Ausführungsform einer erfindungsgemäßen Verzögerungsleitung,
  • Fig. 4 eine Draufsicht auf die Anordnung nach Fig. 3,
  • Fig. 5 einen Längsschnitt durch eine weitere Ausfuhrungsform einer erfindungsgemäßen Verzögerungsleitung und
  • Fig. 6 eine Draufsicht auf die Anordnung nach Fig. 5.
Show:
  • 1 shows a longitudinal section through a section of the delay line according to the invention,
  • 2 is a plan view of the arrangement of FIG. 1,
  • 3 shows a longitudinal section through another embodiment of a delay line according to the invention,
  • 4 shows a top view of the arrangement according to FIG. 3,
  • Fig. 5 shows a longitudinal section through a further embodiment of a delay line according to the invention and
  • 6 is a plan view of the arrangement of FIG .. 5

Bei der in den Figuren 1 und 2 dargestellten Verzögerungsleitung sind in einem zylindrischen Hohlleiter 1 auf einer Seite hintereinander, vorzugsweise runde Stützen 2 angeordnet. An diesen Stützen 2 sind Strahlzylinder 3 gehaltert, die beim Betrieb der Wanderfeldröhre vom Elektronenstrahl durchsetzt werden. Zwischen jeweils'zwei aufeinanderfolgenden Stützen 2 sind die vom Elektronenstrahl durchsetzten Zwischenelektroden 5 angeordnet. Die Zwischenelektroden 5 sind dabei über Querstege 4 an dem Hohlleiter 1 befestigte Ringe. Der Durchmesser der Zwischenelektroden 5 ist vorzugsweise gleich dem Durchmesser der Strahlzylinder 3. Die Zwischenelektroden 5 sind in diesem Ausführungsbeispiel über zwei diametral angeordnete, vorzugsweise runde Querstege 4 an dem Hohlleiter 1 befestigt, und zwar derart, daB die Querstege 4 gegenüber den Stützen 2 um 90° gegeneinander versetzt angeordnet sind.In the delay line shown in FIGS. 1 and 2, preferably round supports 2 are arranged one behind the other in a cylindrical waveguide 1. Beam cylinders 3 are held on these supports 2 and are traversed by the electron beam during operation of the traveling wave tube. The intermediate electrodes 5, through which the electron beam passes, are arranged between each two successive supports 2. The intermediate electrodes 5 are rings attached to the waveguide 1 via crosspieces 4. The diameter of the intermediate electrodes 5 is preferably equal to the diameter of the jet cylinders 3. In this exemplary embodiment, the intermediate electrodes 5 are fastened to the waveguide 1 by means of two diametrically arranged, preferably round transverse webs 4, in such a way that the cross webs 4 are 90 in relation to the supports 2 ° are staggered.

Bei dem in den Figuren 3 und 4 dargestellten Ausführungsbeispiel sind die Querstege 4 der Zwischenelektroden 5 als massive Gegenstützen ausgebildet, deren Ausdehnung - in Achsrichtung des Hohlleiters 1 gesehen - gröBer ist als die der Stützen 2, an denen die Strahlzylinder 3 befestigt sind. Bei dieser Anordnung beeinflußt die Größe der Öffnungsfläche 6 die Steilheit der Dispersionskurve maßgeblich.In the exemplary embodiment shown in FIGS. 3 and 4, the transverse webs 4 of the intermediate electrodes 5 are designed as solid counter supports, the extent of which - seen in the axial direction of the waveguide 1 - is greater than that of the supports 2 to which the jet cylinders 3 are fastened. In this arrangement, the size of the opening area 6 significantly influences the steepness of the dispersion curve.

In den Figuren 5 und 6 ist eine Verzögerungsleitung dargestellt, bei der die Strahlzylinder 3 über wechselweise um 180° versetzte Stützen 2 mit dem zylindrischen Hohlleiter 1 verbunden sind. Die Zwischenelektroden 5 sind, wie in dem ersten Ausführungsbeispiel, an diametral angeordneten Querstegen 4 befestigt. Stützen 2 und Querstege 4 sind wiederum um 90° gegeneinander versetzt.FIGS. 5 and 6 show a delay line in which the jet cylinders 3 are connected to the cylindrical waveguide 1 via supports 2 which are alternately offset by 180 °. The intermediate elec Troden 5 are, as in the first embodiment, attached to diametrically arranged crosspieces 4. Columns 2 and crossbars 4 are in turn offset by 90 °.

Die Erfindung ist auf die dargestellten Ausführungsbeispiele nicht beschränkt. Statt der Strahlzylinder mit Stützen können ohne Einbuße an Koppelwiderstand auch gestanzte flache Elemente mit einer Öffnung für den durchlaufenden Elektronenstrahl sowohl für die Hauptals auch für die Zwischenelemente verwendet werden. Dadurch wird der Aufbau der Verzögerungsleitung einfach und billig. Die Abführung der Verlustwärme durch auftreffende Strahlelektronen wird von dem Element übernommen, das die besseren Wärmeableitungseigenschaften hat. Das kann beispielsweise auch das Zwischenelement sein.The invention is not restricted to the exemplary embodiments shown. Instead of the beam cylinder with supports, punched flat elements with an opening for the continuous electron beam can be used for the main as well as for the intermediate elements without loss of coupling resistance. This makes the construction of the delay line simple and cheap. The dissipation of the heat loss by incident beam electrons is carried out by the element that has the better heat dissipation properties. This can also be the intermediate element, for example.

Claims (5)

1. Verzögerungsleitung für eine Wanderfeldröhre mit periodisch magnetischer Strahlfokussierung, mit in einem zylindrischen Hohlleiter abwechselnd von gegenüberliegenden Seiten oder von nur einer Seite durch Stützen gehalterten, vom Elektronenstrahl durchsetzten Strahlzylindern und mit zwischen jeweils zwei aufeinanderfolgenden Stützen angeordneten, vom Elektronenstrahl durchsetzten Zwischenelektroden, dadurch gekennzeichnet, daß die Zwischenelektroden (5) über Qnerstege (4) an dem Hohlleiter (1) befestigte Ringe sind.1. Delay line for a traveling wave tube with periodic magnetic beam focusing, with in a cylindrical waveguide alternately from opposite sides or from only one side supported by supports, penetrated by the electron beam, and with beam electrodes arranged between two successive supports, penetrated by the electron beam, characterized in that that the intermediate electrodes (5) via Qnerstege (4) on the waveguide (1) are attached rings. 2. Verzögerungsleitung nach Anspruch 1, dadurch gekennzeichnet , daß der Durchmesser der Zwischenelektroden (5) gleich dem Durchmesser der Strahlzylinder (3) ist.2. Delay line according to claim 1, characterized in that the diameter of the intermediate electrodes (5) is equal to the diameter of the jet cylinder (3). 3. Verzögerungsleitung nach Anspruch 1 oder 2, dadurch gekennzeichnet , daß die Zwischenelektroden (5) über zwei diametral angeordnete Querstege (4) an dem Hohlleiter (1) befestigt sind.3. Delay line according to claim 1 or 2, characterized in that the intermediate electrodes (5) are fastened to the waveguide (1) via two diametrically arranged transverse webs (4). 4. Verzögerungsleitung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet , daß die Querstege (4) gegenüber den Stützen (2) um 90° gegeneinander versetzt angeordnet sind.4. delay line according to one of claims 1 to 3, characterized in that the transverse webs (4) with respect to the supports (2) are arranged offset by 90 ° to each other. 5. Verzögerungsleitung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet , daß die Querstege (4) der Zwischenelektroden (5) als massive Gegenstützen ausgebildet sind, deren Ausdehnung - in Achsrichtung des Hohlleiters (1) gesehen - größer ist als die der Stützen (2).5. Delay line according to one of claims 1 to 3, characterized in that the transverse webs (4) of the intermediate electrodes (5) are designed as solid counter supports, the extent - seen in the axial direction of the waveguide (1) - is greater than that of the supports ( 2).
EP80104634A 1979-08-30 1980-08-06 Slow-wave structure for a travelling-wave tube with periodic magnetic focussing Withdrawn EP0024590A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792935151 DE2935151A1 (en) 1979-08-30 1979-08-30 DELAY LINE FOR A WALKING PIPE TUBE WITH PERIODIC MAGNETIC BEAM FOCUSING
DE2935151 1979-08-30

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EP0024590A1 true EP0024590A1 (en) 1981-03-11

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768322A (en) * 1951-06-08 1956-10-23 Bell Telephone Labor Inc Interdigital filter circuit
US2827589A (en) * 1952-05-17 1958-03-18 Bell Telephone Labor Inc Electron discharge device
DE1099092B (en) * 1958-02-12 1961-02-09 Csf Delay line for Lauffeldverstaerkerroehren with two groups of alternately interconnected conductive elements of circular cross-section
DE1293918B (en) * 1962-09-04 1969-04-30 Csf Delay line with periodic structure for forward shaft amplifier tubes
DE1296711B (en) * 1963-07-31 1969-06-04 Siemens Ag Running field pipes of high performance, especially for decimeter wave operation
DE1298203B (en) * 1961-03-30 1969-06-26 Siemens Ag Delay line for traveling wave tubes to amplify millimeter waves

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768322A (en) * 1951-06-08 1956-10-23 Bell Telephone Labor Inc Interdigital filter circuit
US2827589A (en) * 1952-05-17 1958-03-18 Bell Telephone Labor Inc Electron discharge device
DE1099092B (en) * 1958-02-12 1961-02-09 Csf Delay line for Lauffeldverstaerkerroehren with two groups of alternately interconnected conductive elements of circular cross-section
DE1298203B (en) * 1961-03-30 1969-06-26 Siemens Ag Delay line for traveling wave tubes to amplify millimeter waves
DE1293918B (en) * 1962-09-04 1969-04-30 Csf Delay line with periodic structure for forward shaft amplifier tubes
DE1296711B (en) * 1963-07-31 1969-06-04 Siemens Ag Running field pipes of high performance, especially for decimeter wave operation

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