DE1491499C1 - Electron beam generator for a transit time tube - Google Patents
Electron beam generator for a transit time tubeInfo
- Publication number
- DE1491499C1 DE1491499C1 DE19621491499 DE1491499A DE1491499C1 DE 1491499 C1 DE1491499 C1 DE 1491499C1 DE 19621491499 DE19621491499 DE 19621491499 DE 1491499 A DE1491499 A DE 1491499A DE 1491499 C1 DE1491499 C1 DE 1491499C1
- Authority
- DE
- Germany
- Prior art keywords
- cathode
- focusing electrode
- face
- attached
- cup
- 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
Links
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
- H01J23/02—Electrodes; Magnetic control means; Screens
-
- 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
- H01J23/18—Resonators
- H01J23/20—Cavity resonators; Adjustment or tuning thereof
-
- 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
- H01J23/18—Resonators
- H01J23/20—Cavity resonators; Adjustment or tuning thereof
- H01J23/207—Tuning of single resonator
-
- 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
- H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
- H01J25/12—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator with pencil-like electron stream in the axis of the resonators
Landscapes
- Microwave Tubes (AREA)
- Electron Sources, Ion Sources (AREA)
Description
Die Erfindung betrifft Elektronenstrahlerzeuger für 1 Laufzeitröhren, insbesondere Klystrons.The invention relates to electron guns for 1 time-of-flight tubes, in particular klystrons.
Elektronenstrahlerzeuger, bei denen die im wesentlichen aus einer thermisch emittierenden Flächenkathode und einem Kaihodenzylinder beste- ε hende Kathodenanordnung mit der koaxial dazu angeordneten ringförmigen Fokussierelektrode eine starre Baueinheit bildet, sind mannigfach bekannt.Electron guns in which the essentially consists of a thermally emitting Flat cathode and a cathode cylinder consisting ε existing cathode arrangement with the coaxially arranged therewith ring-shaped focusing electrode forms a rigid structural unit are known in many ways.
Die bekannten Elektronenstrahlerzeuger haben einen relativ komplizierten Aufbau, damit der genaue Abstand zwischen der Kathode und der Fokussierelektrode auch bei Temperaturschwankungen konstant gehalten werden kann und damit eine wirksame Wärmeabschirmung erzielt wird, um ein einwandfreies Arbeiten der Röhre zu gewährleisten. Beson- is ders schwierig ist es, derartige Elektronenstrahlerzeuger in kleine Röhren einzusetzen, die mit einer Frequenz von mehr als 10 (K)O MHz betrieben werden.The known electron guns have a relatively complicated structure, so that the exact The distance between the cathode and the focusing electrode remains constant even with temperature fluctuations can be kept and thus an effective heat shield is achieved to a flawless To ensure working of the tube. It is particularly difficult to use electron guns of this type to be used in small tubes that are operated at a frequency of more than 10 (K) O MHz.
Der Erfindung liegt daher die Aufgabe zugrunde, einen Elektronenstrahlerzeuger vereinfachter und verbesserter Ausführung anzugeben, der bei Gewährleistung einer wirksamen Wärmeabschirmung die oben angegebenen Nachteile vermeidet und sich zum Einbau auch in kleine Laufzeitröhren eignet.The invention is therefore based on the object of simplifying an electron gun Specify improved design, which while ensuring effective heat shielding the Avoids the disadvantages indicated above and is also suitable for installation in small transit time tubes.
Gemäß der Erfindung wird dies dadurch erreicht, daß die Kathodenanordnung in einem mit seitlichen Durchbrechungen versehenen tassenförmigen Metallteil, dessen offene Stirnseite in Strahlrichtung zeigt, untergebracht und von diesem gehaltert ist (Kathodenhallerungsteil), das seinerseits im Bereich seiner offcneu Stirnseite an der Fokussierelektrode befestigt ist, und daß die Fokussierelektrode von einem ebenfalls mit seitlichen Durchbrechungen versehenen tassenförmigen Metallteil, dessen offene Stirnseite in Strahlrichtung zeigt, gehaltert ist (Fokussierelektrodcnhaiterungsteil), das die Kathodenanordnung samt Kathodcnhalterungsteil allseits mit Abstand umgibt und an dem im Bereich seiner offenen Stirnseite die Fokussierelektrode befestigt ist.According to the invention this is achieved in that the cathode arrangement in a with lateral Cup-shaped metal part with perforations, the open end face of which points in the direction of the beam, housed and held by this (cathode hallering part), which in turn in the area of its offcneu Front side is attached to the focusing electrode, and that the focusing electrode of one also Cup-shaped metal part provided with lateral perforations, the open end face in the direction of the beam shows, is held (focusing electrode holder part), which surrounds the cathode arrangement including the cathode holder part at a distance on all sides and to which the focusing electrode is attached in the area of its open end face.
Vorzugsweise werden die Seitenwände der beiden Halterungsieile von frei endenden Armen oder Streben gebildet.The side walls of the two holding parts are preferably made up of freely ending arms or struts educated.
Ein Ausführungsbeispiel gemäß der Erfindung ist in der Figur im Schnitt dargestellt.An embodiment according to the invention is shown in section in the figure.
Der metallische Grundkörper 11 eines Klystrons hat eine Bohrung 12, die sich nach unten stufenweise erweitert, in der Erweiterung ist ein erfindungsgemäßer Strahlerzeuger 13 angeordnet, der einen die Röhre durchsetzenden Elektronenstrahl erzeugt. Der Strahlerzeuger 13 besitzt einen einfachen Aufbau, der besonders zur Verwendung in kleinen Röhren für hohe Frequenzen geeignet ist. Eine ebene Kathode 17 wird von einer Kathodenhülse 18 getragen, die einen nicht dargestellten Heizdraht umgibt. Die Kathodenanordnung 17, 18 ist in einem tassenförmigen Metallteil 19 untergebracht, dessen offene Stirnseite in Strahlrichtung zeigt und der den Kathodenhalterungsteil bildet. Um den Querschnitt für die Wärmeableitung zu verringern, ist die Seitenwand des Metallteils mit Durchbrechungen versehen und in Form von Armen 21 ausgebildet, die ihrerseits mit ihren freien Enden an der Seitenwand einer zylindrischen Fokussierelektrode 22 befestigt sind. Die Fokussierelektrode ist koaxial zu der Kathode 17 angeordnet und wird von einem größeren tassenförmigen Metallteil 23, dem Fokussierelektrodenhalterungsteil, gehaltert, dessen Seitenwand ebenfalls mit Durchbrechungen versehen und in Form von Streben 24 ausgebildet ist, deren freie Enden an der Seitenwand der Fokussierelektrode 22 befestigt sind. Der Metallteil 23 ist an einem schalenförmigen Isolierbauteil 25 befestigt, der Durchführungsstjfte 26 aufweist, die darin vakuumdicht befestigt sind. Die Leiter 27 und 28 für den Heizdraht sind mit zweien der Stifte 26 verbunden. Ein metallischer Abdichtring 29 ist vakuumdicht an dem Isolierbauteil 25 und an dem Grundkörper 11 angelötet, um die gesamte Anordnung mit dem Elektronenstrahlerzeuger 13 an dem Grundkörper 11 zu haltern.The metallic base body 11 of a klystron has a bore 12 that extends downwards in steps expanded, in the expansion is an inventive Arranged beam generator 13, which generates an electron beam penetrating the tube. the Beam generator 13 has a simple structure, which is particularly suitable for use in small tubes for high frequencies is suitable. A planar cathode 17 is carried by a cathode sleeve 18, the one Surrounds heating wire, not shown. The cathode arrangement 17, 18 is in a cup-shaped metal part 19 housed, the open end face in the beam direction and the cathode holder part forms. In order to reduce the cross-section for heat dissipation, the side wall of the metal part is provided with openings and designed in the form of arms 21, which in turn with their free Ends are attached to the side wall of a cylindrical focusing electrode 22. The focusing electrode is arranged coaxially to the cathode 17 and is supported by a larger cup-shaped metal part 23, the focusing electrode holder part, the side wall of which also has openings and is designed in the form of struts 24, the free ends of which on the side wall of the focusing electrode 22 are attached. The metal part 23 is attached to a shell-shaped insulating member 25, the Having bushings 26 which are vacuum-tight therein are attached. The conductors 27 and 28 for the heating wire are connected to two of the pins 26. A metallic sealing ring 29 is vacuum-tight on the insulating component 25 and on the base body 11 soldered to the entire arrangement with the electron gun 13 on the base body 11 to hold.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85090A US3117251A (en) | 1961-01-26 | 1961-01-26 | Deformable wall tuning means for klystrons |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1491499B1 DE1491499B1 (en) | 1970-03-12 |
DE1491499C1 true DE1491499C1 (en) | 1972-09-14 |
Family
ID=22189402
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19621491499 Expired DE1491499C1 (en) | 1961-01-26 | 1962-01-25 | Electron beam generator for a transit time tube |
DE19621491500 Pending DE1491500B1 (en) | 1961-01-26 | 1962-01-25 | Power klystron |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19621491500 Pending DE1491500B1 (en) | 1961-01-26 | 1962-01-25 | Power klystron |
Country Status (3)
Country | Link |
---|---|
US (1) | US3117251A (en) |
DE (2) | DE1491499C1 (en) |
GB (4) | GB1004977A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1143751B (en) * | 1977-08-01 | 1986-10-22 | Sits Soc It Telecom Siemens | KLYSTRON ADJUSTABLE OSCILLATOR |
US4661784A (en) * | 1979-06-27 | 1987-04-28 | Raytheon Company | Klystron having fixed and variable tuning mechanisms |
US5304942A (en) * | 1992-05-12 | 1994-04-19 | Litton Systems, Inc. | Extended interaction output circuit for a broad band relativistic klystron |
US5469023A (en) * | 1994-01-21 | 1995-11-21 | Litton Systems, Inc. | Capacitive stub for enhancing efficiency and bandwidth in a klystron |
US5469024A (en) * | 1994-01-21 | 1995-11-21 | Litton Systems, Inc. | Leaky wall filter for use in extended interaction klystron |
FR2775118B1 (en) * | 1998-02-13 | 2000-05-05 | Thomson Tubes Electroniques | GRID FOR ELECTRONIC TUBE WITH AXIAL BEAM WITH IMPROVED PERFORMANCE |
US6259207B1 (en) | 1998-07-27 | 2001-07-10 | Litton Systems, Inc. | Waveguide series resonant cavity for enhancing efficiency and bandwidth in a klystron |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB499532A (en) * | 1937-11-15 | 1939-01-25 | Gen Electric Co Ltd | Improvements in or relating to cathode ray tubes and the like |
US2146365A (en) * | 1934-12-13 | 1939-02-07 | John C Batchelor | Electron emitter |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2493046A (en) * | 1942-08-03 | 1950-01-03 | Sperry Corp | High-frequency electroexpansive tuning apparatus |
US2418844A (en) * | 1943-04-01 | 1947-04-15 | Raytheon Mfg Co | Ultra high frequency tube |
BE471464A (en) * | 1943-09-21 | |||
US2514383A (en) * | 1944-08-25 | 1950-07-11 | Sperry Corp | High-frequency cavity resonator apparatus |
US2544675A (en) * | 1945-08-09 | 1951-03-13 | Sperry Corp | Frequency multiplier of the cavity resonator type |
US2517726A (en) * | 1946-07-17 | 1950-08-08 | Philco Corp | Ultra high frequency electron tube |
US2606302A (en) * | 1949-03-30 | 1952-08-05 | Sperry Corp | Temperature compensated cavity resonator structure |
US2837685A (en) * | 1953-01-30 | 1958-06-03 | Sperry Rand Corp | High frequency klystron tube construction |
BE542863A (en) * | 1954-11-19 | |||
US2892958A (en) * | 1956-07-13 | 1959-06-30 | High Voltage Engineering Corp | Corrugated waveguide |
-
1961
- 1961-01-26 US US85090A patent/US3117251A/en not_active Expired - Lifetime
- 1961-12-19 GB GB16518/61A patent/GB1004977A/en not_active Expired
- 1961-12-19 GB GB45484/61A patent/GB1004976A/en not_active Expired
- 1961-12-19 GB GB27801/64A patent/GB1004979A/en not_active Expired
- 1961-12-19 GB GB16519/64A patent/GB1004978A/en not_active Expired
-
1962
- 1962-01-25 DE DE19621491499 patent/DE1491499C1/en not_active Expired
- 1962-01-25 DE DE19621491500 patent/DE1491500B1/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2146365A (en) * | 1934-12-13 | 1939-02-07 | John C Batchelor | Electron emitter |
GB499532A (en) * | 1937-11-15 | 1939-01-25 | Gen Electric Co Ltd | Improvements in or relating to cathode ray tubes and the like |
Also Published As
Publication number | Publication date |
---|---|
GB1004978A (en) | 1965-09-22 |
GB1004979A (en) | 1965-09-22 |
DE1491499B1 (en) | 1970-03-12 |
GB1004976A (en) | 1965-09-22 |
US3117251A (en) | 1964-01-07 |
GB1004977A (en) | 1965-09-22 |
DE1491500B1 (en) | 1971-04-08 |
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