JPH0775143B2 - Beam straight type microwave tube - Google Patents
Beam straight type microwave tubeInfo
- Publication number
- JPH0775143B2 JPH0775143B2 JP60129063A JP12906385A JPH0775143B2 JP H0775143 B2 JPH0775143 B2 JP H0775143B2 JP 60129063 A JP60129063 A JP 60129063A JP 12906385 A JP12906385 A JP 12906385A JP H0775143 B2 JPH0775143 B2 JP H0775143B2
- Authority
- JP
- Japan
- Prior art keywords
- pole piece
- wave circuit
- slow
- alloy material
- magnet
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000010894 electron beam technology Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 230000001902 propagating effect Effects 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000005219 brazing Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Landscapes
- Microwave Tubes (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は，空胴結合形遅波回路の中心部の空間を進行
する電子ビームが，遅波回路に沿って伝ぱんするマイク
ロ波と相互に作用し合ってマイクロ波電力を増幅するビ
ーム直進形マイクロ波管で，特にその遅波回路内のポー
ルピースの放熱の改善に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an electron beam propagating in a space at the center of a cavity-coupled slow-wave circuit and a microwave propagating along the slow-wave circuit. This is a beam straight-wave microwave tube that acts on each other to amplify the microwave power, and particularly relates to improving the heat dissipation of the pole pieces in the slow-wave circuit.
（従来の技術） 第３図は従来のこの種のビーム直進形マイクロ波管の空
胴結合形遅波回路の一例の構造を示す斜視図，第４図は
第３図に示す空胴結合形遅波回路の１片のポールピース
の構造を示す斜視図である。(Prior Art) FIG. 3 is a perspective view showing an example of the structure of a conventional cavity-coupled slow-wave circuit of this type of beam rectilinear microwave tube, and FIG. 4 is a cavity-coupled type shown in FIG. It is a perspective view which shows the structure of one pole piece of a slow wave circuit.
遅波回路の空胴の隔壁となる各ポールピース１に結合ス
リット11が設けられていて，各空胴が結合されている。A coupling slit 11 is provided in each pole piece 1 which serves as a partition wall of the cavity of the slow wave circuit, and each cavity is coupled.
電子銃より放射された電子ビームは，集束，加速され
て，遅波回路の中心部２を進行し，遅波回路に沿って伝
ぱんするマイクロ波と相互に作用し合ってマイクロ波電
力を増幅する。The electron beam emitted from the electron gun is focused and accelerated, travels through the central portion 2 of the slow-wave circuit, interacts with the microwave propagating along the slow-wave circuit, and amplifies the microwave power. To do.
磁石３とポールピース１によって空胴内に中心部２を進
行する電子ビームを集束する磁界が形成されているが，
電子ビームの一部は中心部２の内壁に衝突し，熱を発生
させる。The magnet 3 and the pole piece 1 form a magnetic field in the cavity for focusing the electron beam traveling in the central portion 2,
A part of the electron beam collides with the inner wall of the central portion 2 to generate heat.
（発明が解決しようとする問題点） 従来のポールピース１は，空胴内に磁石３の磁界を導く
ことのみを目的として，鉄材又は鉄合金材で製作されて
いて，熱伝導率が低く，中心部２の内壁に電子ビームの
衝突によって発生する熱の周辺部への拡散が悪く，ポー
ルピース１の内壁部の温度上昇によって，出力電力が制
限されるという問題点があった。(Problems to be Solved by the Invention) The conventional pole piece 1 is made of an iron material or an iron alloy material only for the purpose of guiding the magnetic field of the magnet 3 into the cavity, and has a low thermal conductivity. There is a problem in that the heat generated by the collision of the electron beam on the inner wall of the central portion 2 is not well diffused to the peripheral portion, and the output power is limited due to the temperature rise of the inner wall portion of the pole piece 1.
（問題点を解決するための手段） 本発明は上記問題点を解決するため、電子銃から放射さ
れた電子ビームが、複数の磁石と鉄材または鉄合金材か
らなるポールピースを組み合わせた周期磁界集束装置に
よって集束、加速されて空胴結合形遅波回路の中心部の
空間を進行し、上記遅波回路に沿って、伝搬するマイク
ロ波と相互に作用し合ってマイクロ波電力を増幅するビ
ーム直進形マイクロ波管において、上記ポールピースに
それぞれ、上記電子ビームが進行する中心部をリング状
に残した等角度の扇形切欠き部を等間隔に設け、該切欠
き部に銅材または銅合金材を嵌合し、接合部をろう付け
すると共に、上記磁石を、上記ポールピースの切欠き角
度と等しい角度の磁石片に分割し、上記ポールピースの
鉄材または鉄合金材上にのみ、該磁石片を配置したこと
を特徴とするものである。(Means for Solving the Problems) In order to solve the above problems, the present invention focuses a periodic magnetic field by combining an electron beam emitted from an electron gun with a plurality of magnets and pole pieces made of an iron material or an iron alloy material. A beam straight line that is focused and accelerated by the device to travel through the space at the center of the cavity-coupled slow-wave circuit, and along the slow-wave circuit, interacts with the propagating microwaves to amplify the microwave power. -Shaped microwave tube, each of the pole pieces is provided with fan-shaped notch portions having an equal angle in which a center portion where the electron beam travels is left in a ring shape at equal intervals, and the notch portion is made of a copper material or a copper alloy material. And brazing the joint, and dividing the magnet into magnet pieces having an angle equal to the notch angle of the pole piece, and only on the iron material or iron alloy material of the pole piece. Is arranged.
（実施例） 第１図はこの発明に係るポールピースの一例の構造を示
す斜視図，第２図は第１図に示すポールピースを用いた
遅波回路の一例の構造を示す斜視図である。(Embodiment) FIG. 1 is a perspective view showing the structure of an example of a pole piece according to the present invention, and FIG. 2 is a perspective view showing the structure of an example of a slow wave circuit using the pole piece shown in FIG. .
この発明に係るポールピース1aは，等間隔に等角度の扇
形切欠き部を設け（図面は３個の切欠き部を設けた例を
示す）この切欠き部に銅材又は銅合金材の部片12を嵌合
し，この部片12の鉄材部分との接合部をろう付けして製
作したものである。The pole piece 1a according to the present invention is provided with fan-shaped notch portions at equal intervals at equal intervals (the drawing shows an example in which three notch portions are provided). The notch portion is made of a copper material or a copper alloy material. It is manufactured by fitting the piece 12 and brazing the joint portion of the piece 12 with the iron material portion.
遅波回路において，磁石は、ポールピースの切欠き角度
と等しい角度の磁石片2aに分割され、この磁石片2aによ
る磁界がポールピース1aの鉄材部分を介して，有効に空
洞内に導入されるように，鉄材部分に対する場所にのみ
配置する構造とした。In the slow wave circuit, the magnet is divided into magnet pieces 2a having an angle equal to the notch angle of the pole piece, and the magnetic field generated by the magnet piece 2a is effectively introduced into the cavity through the iron material portion of the pole piece 1a. As described above, the structure is such that it is placed only at the location for the iron material.
なお，ポールピース1aに，銅材又は銅合金材部分を等間
隔に等角度の扇形状に設けたのは，鉄材部分によって空
洞内に導かれる磁界が対称な分布となり，電子ビームを
効果的に集束する構成とすることを容易にするためであ
る。In the pole piece 1a, the copper material or the copper alloy material portion is provided in a fan shape of equal angle at equal intervals, so that the magnetic field introduced into the cavity by the iron material portion has a symmetrical distribution, and the electron beam is effectively emitted. This is for facilitating the configuration of focusing.
中央部２の空間を進行する電子ビームの一部の衝突によ
ってポールピース1aの内壁に発生する熱は，熱伝導度の
よい銅又は銅合金材の部片12部分を伝導し，周辺部に拡
散する。さらに、磁石片間の空間に放熱用部材を配置す
ることが可能であり、放熱用外囲器（放熱フィン等）へ
の放熱経路を設けることが可能となる。したがって，従
来のものに比べ，冷却効率が遥かによく，充分な出力電
力を得ることができる。The heat generated on the inner wall of the pole piece 1a due to the collision of a part of the electron beam traveling in the space of the central portion 2 is conducted through the portion 12 of the copper or copper alloy material having good thermal conductivity and diffused to the peripheral portion. To do. Further, it is possible to dispose a heat dissipation member in the space between the magnet pieces, and it is possible to provide a heat dissipation path to a heat dissipation envelope (heat dissipation fin or the like). Therefore, the cooling efficiency is far better than that of the conventional one, and sufficient output power can be obtained.
（発明の効果） 以上のとおり，この発明によれば，遅波回路の中心部の
空間を進行する電子ビームの一部の衝突によりポールピ
ースの内壁部に発生する熱の放熱効率が向上し，充分な
出力を得ることができるという効果がある。(Effects of the Invention) As described above, according to the present invention, the efficiency of radiating the heat generated on the inner wall of the pole piece due to the collision of a part of the electron beam traveling in the central space of the slow wave circuit is improved, There is an effect that a sufficient output can be obtained.
第１図はこの発明に係るポールピースの一例の構造を示
す斜視図，第２図は第１図に示すポールピースを用いた
遅波回路の一例の構造を示す斜視図，第３図は従来のこ
の種のビーム直進形マイクロ波管の空胴結合形遅波回路
の一例の構造を示す斜視図，第４図は第３図に示す空胴
結合形遅波回路のポールピースの構造を示す斜視図であ
る。 1a……ポールピース,11……結合スリット,12……銅材又
は銅合金材の部片部分,2……中心部,3……磁石、2a……
磁石片FIG. 1 is a perspective view showing the structure of an example of a pole piece according to the present invention, FIG. 2 is a perspective view showing the structure of an example of a slow wave circuit using the pole piece shown in FIG. 1, and FIG. FIG. 4 is a perspective view showing the structure of an example of the cavity-coupled slow-wave circuit of this type of beam rectilinear microwave tube, and FIG. 4 shows the structure of the pole piece of the cavity-coupled slow-wave circuit shown in FIG. It is a perspective view. 1a ... Pole piece, 11 ... Coupling slit, 12 ... Copper or copper alloy material, 2 ... Center part, 3 ... Magnet, 2a ......
Magnet piece
Claims (1)
の磁石と鉄材または鉄合金材からなるポールピースを組
み合わせた周期磁界集束装置によって集束、加速されて
空胴結合形遅波回路の中心部の空間を進行し、上記遅波
回路に沿って、伝搬するマイクロ波と相互に作用し合っ
てマイクロ波電力を増幅するビーム直進形マイクロ波管
において、 上記ポールピースにそれぞれ、上記電子ビームが進行す
る中心部をリング状に残した等角度の扇形切欠き部を等
間隔に設け、該切欠き部に銅材または銅合金材を嵌合
し、接合部をろう付けすると共に、上記磁石を、上記ポ
ールピースの切欠き角度と等しい角度の磁石片に分割
し、上記ポールピースの鉄材または鉄合金材上にのみ、
該磁石片を配置したことを特徴とするビーム直進形マイ
クロ波管。1. A center of a cavity-coupled slow-wave circuit, in which an electron beam emitted from an electron gun is focused and accelerated by a periodic magnetic field focusing device in which a plurality of magnets and pole pieces made of iron material or iron alloy material are combined. In the straight beam microwave tube that travels through the space of the section and amplifies the microwave power by interacting with the propagating microwaves along the slow wave circuit, the electron beam is applied to each of the pole pieces. Equal-angled fan-shaped notch portions are left at equal intervals with the center portion of the ring left at a regular interval, copper or copper alloy material is fitted into the notch portions, and the joint portion is brazed together with the magnet. , Split into magnet pieces with an angle equal to the notch angle of the pole piece, only on the iron material or iron alloy material of the pole piece,
A beam rectilinear microwave tube having the magnet pieces arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60129063A JPH0775143B2 (en) | 1985-06-13 | 1985-06-13 | Beam straight type microwave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60129063A JPH0775143B2 (en) | 1985-06-13 | 1985-06-13 | Beam straight type microwave tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61285639A JPS61285639A (en) | 1986-12-16 |
| JPH0775143B2 true JPH0775143B2 (en) | 1995-08-09 |
Family
ID=15000166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60129063A Expired - Lifetime JPH0775143B2 (en) | 1985-06-13 | 1985-06-13 | Beam straight type microwave tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0775143B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206488B (en) * | 2015-09-29 | 2017-03-08 | 电子科技大学 | A Radial Sector Magnetic Focusing System for Radial Beam Traveling Wave Tubes |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614463U (en) * | 1979-07-13 | 1981-02-07 | ||
| JPS621736Y2 (en) * | 1980-11-12 | 1987-01-16 |
-
1985
- 1985-06-13 JP JP60129063A patent/JPH0775143B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61285639A (en) | 1986-12-16 |
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