CN1078733C - 谐振腔装置 - Google Patents

谐振腔装置 Download PDF

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CN1078733C
CN1078733C CN95115919A CN95115919A CN1078733C CN 1078733 C CN1078733 C CN 1078733C CN 95115919 A CN95115919 A CN 95115919A CN 95115919 A CN95115919 A CN 95115919A CN 1078733 C CN1078733 C CN 1078733C
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magnetic material
resonant cavity
resonator
output
cavity
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CN1128895A (zh
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S·巴德尔
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Teledyne UK Ltd
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EEV Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02Tubes 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
    • H01J25/04Tubes having one or more resonators, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly density modulation, e.g. Heaff tube
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02Electrodes; Magnetic control means; Screens
    • H01J23/08Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087Magnetic focusing arrangements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02Electrodes; Magnetic control means; Screens
    • H01J23/08Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087Magnetic focusing arrangements
    • H01J23/0876Magnetic focusing arrangements with arrangements improving the linearity and homogeniety of the axial field, e.g. field straightener
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2223/00Details of transit-time tubes of the types covered by group H01J2225/00
    • H01J2223/16Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J2223/18Resonators
    • H01J2223/20Cavity resonators; Adjustment or tuning thereof
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2223/00Details of transit-time tubes of the types covered by group H01J2225/00
    • H01J2223/36Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • H01J2223/40Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit

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  • Microwave Tubes (AREA)
  • Particle Accelerators (AREA)

Abstract

一种输出谐振腔7,与诸如感应输出管之类的线性电子束管配用,谐振腔的腔壁12和13上装有磁性材料17和23,且界定一环形沟槽,沿安置在孔眼15和16中管的轴线X-X运动的电子束的聚焦线圈21、22和27就安装该环形沟槽中。一内凸缘28用以将电子束管相对于谐振腔定位。

Description

谐振腔装置
本发明涉及谐振腔装置,更具体地说,涉及一种与线性电子束管配用的谐振腔装置。
线性电子束管是指诸如速调管或感应输出管(IOT)之类的器件,电子束在这类管中产生后,沿线性路径运动,与谐振腔的高频能相互作用。例如,IOT中电子枪周围的环形输入谐振腔就配置得使耦合到谐振腔中的高频能在电子枪的阴极与栅极之间产生调制信号,从而调制了电子束的密度。沿漂移管传输之后,位于电子束路径远端的输出谐振腔就耦合有经放大的高频信号。
根据本发明提供的一种与线性电子束管配用的谐振腔装置,它包括:一个谐振腔和磁聚焦装置,谐振腔的两个腔壁上开有孔眼,正是这些孔眼使线性电子束管具有广泛的用途,磁聚焦装置包括在两腔壁的至少其中之一的外表面上装有的磁性材料,
所述磁性材料包括一构件,该构件的第一部分实质上平行于所述外表面,并附在该外表面上,该构件的第二部分实质上垂直所述于外表面,
其特征在于,所述构件包括第三部分,实质上平行于所述外表面且与外表面间隔一段距离,在该第三部分与所述外表面之间形成一个环形沟槽。
磁聚焦装置与线性电子束管配用,起抵消电子束中的电子因空间电荷的影响而引起的相互排斥的作用,从而避免电子撞击管子围绕电子束路径的各部分。
通过将磁性材料装在谐振腔的一个或两个壁的外表面,就可以使整个设施比一般磁聚焦装置设在完全分立器件上的设施更紧凑。此外,磁性材料与谐振腔结合在一起,还给整个器件的装配带来方便,因为这些部件可以在与电子束管组合之前彼此精确对齐,并牢靠地固定。另外,整个器件的部件数也减少了,从而更容易处理和装配。磁性材料可用适当的胶或其它固定机构装设到腔壁表面。磁性材料安置在电子束管真空玻壳外,与电子束管分开装设,维修和进行其它工作时可以方便地触及。
磁性材料可以只装设在一个腔壁上,但在本发明的一个实施例中,两个谐振腔壁的外表面都装了磁性材料。
磁聚焦装置最好具有电磁线圈装置。线圈装置可以绕在磁性材料上,也可以分开形成,毗邻磁性材料配置。在本发明的另一些实施例中,磁聚焦装置包括永磁性材料。
装有线圈装置时,最好磁性材料构件的第一部分平行于腔壁表面,并附在该表面上,第二部分则基本上垂直于该表面。磁性构件还可以有基本上平行于该表面、与该表面间隔一段距离在其间形成环形沟槽的第三部分,而且最好线圈装置安置在该沟槽中。在本发明的一个实施例中,磁性构件有一个圆柱形壁,壁的一端有一个向内延伸的凸缘固定在腔壁上,壁的另一端有一个向外延伸的凸缘。
这里有这样的好处,磁性材料有一个内部突出部分延伸入孔径方向,该部分在使用时与电子束管结合,使电子束管相对于谐振腔和聚焦装置精确就位。
本发明的特点在于,管组件有一个本发明的谐振腔装置,还有一个线性电子束管,这个线性电子束管以感应输出管为宜。
现在参看附图举例说明本发明一个实施例。
图1是装有本发明的谐振腔装置的IOT组合件的示意图;
图2示出了图1管组件的一部分更详细的示意图。
参看图1,IOT的电子枪1,其阴极2和栅极3周围设有环形谐振腔4,高频信号即通过谐振腔4的耦合环5耦合到谐振腔4中。电子枪1产生的电子束设计得使其沿IOT的纵轴线X-X通过漂移区流动到输出谐振腔7所环绕的漂移管间隙6。高频输出信号经放大后从谐振腔7通过耦合装置9耦合到第二输出谐振腔8,从那里经耦合装置10从谐振腔装置出来。集电极11是为接收通过漂移管间隙6之后的电子束而设的。
参看图2,输出谐振腔7有两个基本上与X-X轴线垂直的两个腔壁12和13及一个将前两个腔壁12、13连接起来的腔壁14。横腔壁12和13上分别开有孔眼15和16,正是这些孔眼使IOT具有广泛的用途。磁性材料17安置在腔壁12的外表面,其圆柱形壁部分18平行于X-X轴线延伸,也装有磁性材料,柱形壁部分18向内延伸的部分19基本上平行于腔壁12的外表面,且装设在该外表面上。此外还有一个向外延伸的凸缘20,与腔壁12间隔一段距离,且基本上平行于腔壁12。线圈21和22安置在凸缘20、圆柱形壁18和腔壁12所界定的环形沟槽中。
磁性材料制成的第二构件23固定在另一横腔壁13上,构件23也有一个圆柱形壁部分24和内外凸缘25和26。线圈27安置在磁性材料23和腔壁13所界定的沟槽中。构件24的凸缘28向内突出,在孔眼16的外径内延伸,且形成一个突出部分将电子束管相对于输出谐振腔7及其上装设的聚焦装置安置在整个组件中,管径减小,与凸缘28结合。
谐振腔7和8是外腔,位于真空玻壳外侧。真空玻壳外也装有磁性材料。

Claims (12)

1.一种与线性电子束管配用的谐振腔装置,它包括:一个谐振腔和磁聚焦装置,谐振腔的两个腔壁上开有孔眼,正是这些孔眼使线性电子束管具有广泛的用途,磁聚焦装置包括在两腔壁的至少其中之一的外表面上装有的磁性材料,
所述磁性材料包括一构件,该构件的第一部分实质上平行于所述外表面,并附在该外表面上,该构件的第二部分实质上垂直于所述外表面,
其特征在于,所述构件包括第三部分,实质上平行于所述外表面且与外表面间隔一段距离,在该第三部分与所述外表面之间形成一个环形沟槽。
2.如权利要求1所述的谐振腔装置,其特征在于,所述磁聚焦装置包括有电磁线圈装置。
3.如权利要求2所述的谐振腔装置,其特征在于,所述线圈装置绕制在磁性材料上。
4.如权利要求1所述的谐振腔装置,其特征在于,所述线圈装置配置在所述环形沟槽中。
5.如权利要求1、2或3所述的谐振腔装置,其特征在于,其中一个腔壁孔眼周围装有磁性材料,且向内伸入孔眼直径的突出部分也装有磁性材料。
6.如权利要求5所述的谐振腔装置,其特征在于,所述突出部分使用时可与线性电子束管接合,使它相对于谐振腔和聚焦装置在孔眼中就位。
7.如权利要求5所述的谐振腔装置,其特征在于,里面装有电磁线圈装置的环形沟槽由磁性材料制成。
8.如权利要求1、2或3所述的谐振腔装置,其特征在于,谐振腔是个输出腔,且装有用于耦合从输出腔输出的能量的耦合装置。
9.一种管组件,其特征在于,装有权利要求1、2或3所述的谐振腔装置,还装有一线性电子束管。
10.如权利要求9所述的管组件,其特征在于,所述管是个感应输出管。
11.如权利要求9所述的管组件,其特征在于,磁性材料配置在腔壁孔眼周围,包括伸入孔眼直径内与管接合使管在孔眼内相对于谐振腔就位的突出部分。
12.如权利要求9所述的管组件,其特征在于,谐振腔是个输出腔,且装有耦合输出谐振腔输出的能量的耦合装置。
CN95115919A 1994-09-07 1995-09-07 谐振腔装置 Expired - Lifetime CN1078733C (zh)

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GB9418028A GB9418028D0 (en) 1994-09-07 1994-09-07 Cavity arrangements
GB9418028.8 1994-09-07

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CN1078733C true CN1078733C (zh) 2002-01-30

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EP (1) EP0701266B1 (zh)
CN (1) CN1078733C (zh)
DE (1) DE69529036D1 (zh)
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Publication number Priority date Publication date Assignee Title
US6232721B1 (en) 2000-06-19 2001-05-15 Harris Corporation Inductive output tube (IOT) amplifier system
CN104201080A (zh) * 2014-07-22 2014-12-10 中国科学院电子学研究所 倍频感应输出管
CN104124124B (zh) * 2014-08-06 2016-08-24 中国科学院电子学研究所 线包磁聚焦强流电子注传输过程模拟测量系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB946020A (en) * 1962-05-18 1964-01-08 Standard Telephones Cables Ltd Improvements in or relating to travelling wave tubes
US4558258A (en) * 1982-04-26 1985-12-10 Tokyo Shibaura Denki Kabushiki Kaisha Klystron unit
GB2244854A (en) * 1990-03-09 1991-12-11 Eev Ltd Electron beam tube arrangements

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NL135247C (zh) * 1946-10-22
BE527787A (zh) * 1952-04-08 1900-01-01
NL200290A (zh) * 1953-03-26 1900-01-01
DE1541025B1 (de) * 1966-12-09 1970-06-18 Philips Patentverwaltung Klystron
US3700945A (en) * 1971-08-30 1972-10-24 Us Navy High power pulsed electron beam
GB1485333A (en) * 1975-05-07 1977-09-08 English Electric Valve Co Ltd Resonant cavity tubes
DE3015231A1 (de) * 1980-04-21 1981-10-22 Siemens AG, 1000 Berlin und 8000 München Wanderfeldroehre mit periodisch-permanentmagnetischem fokussiersystem
US4387323A (en) * 1980-12-15 1983-06-07 Varian Associates, Inc. Permanent magnet structure for linear-beam electron tubes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB946020A (en) * 1962-05-18 1964-01-08 Standard Telephones Cables Ltd Improvements in or relating to travelling wave tubes
US4558258A (en) * 1982-04-26 1985-12-10 Tokyo Shibaura Denki Kabushiki Kaisha Klystron unit
GB2244854A (en) * 1990-03-09 1991-12-11 Eev Ltd Electron beam tube arrangements

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GB9418028D0 (en) 1994-10-26
DE69529036D1 (de) 2003-01-16
EP0701266A3 (en) 1998-04-01
EP0701266B1 (en) 2002-12-04
US5736820A (en) 1998-04-07
CN1128895A (zh) 1996-08-14
EP0701266A2 (en) 1996-03-13

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