JPH04106842A - Spiral slow-wave circuit structure - Google Patents
Spiral slow-wave circuit structureInfo
- Publication number
- JPH04106842A JPH04106842A JP22292490A JP22292490A JPH04106842A JP H04106842 A JPH04106842 A JP H04106842A JP 22292490 A JP22292490 A JP 22292490A JP 22292490 A JP22292490 A JP 22292490A JP H04106842 A JPH04106842 A JP H04106842A
- Authority
- JP
- Japan
- Prior art keywords
- wave circuit
- slow
- magnetic pole
- circuit structure
- joining
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 125000006850 spacer group Chemical group 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 abstract description 9
- 238000005304 joining Methods 0.000 abstract description 8
- 238000005476 soldering Methods 0.000 abstract 3
- 238000005219 brazing Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241000282537 Mandrillus sphinx Species 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WDQNIWFZKXZFAY-UHFFFAOYSA-M fentin acetate Chemical compound CC([O-])=O.C1=CC=CC=C1[Sn+](C=1C=CC=CC=1)C1=CC=CC=C1 WDQNIWFZKXZFAY-UHFFFAOYSA-M 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
Landscapes
- Microwave Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、進行波管等に使用されるらせん形遅波回路楕
体に間する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a spiral slow wave circuit ellipse used in traveling wave tubes and the like.
らせん形遅波回路用の外囲器として、円板状磁極と円筒
状金属スペーサを交互に積層しろう付接合してなる外囲
器がある。この外囲器を用いると、それに収納されるら
せんに磁極内径がより近接するため、磁極と組合せる円
環状半割りの永久磁石のエネルギーが同じでもより高い
中心磁束密度が得られる。従って、周波数が高く、より
高効率の進行波管においては、上記構成の遅波回路が採
用されてきている。As an envelope for a spiral slow-wave circuit, there is an envelope made by alternately laminating disc-shaped magnetic poles and cylindrical metal spacers and joining them by brazing. When this envelope is used, since the inner diameter of the magnetic pole is closer to the helix housed in the envelope, a higher center magnetic flux density can be obtained even if the energy of the annular half-split permanent magnet combined with the magnetic pole is the same. Therefore, in traveling wave tubes with higher frequencies and higher efficiency, slow wave circuits having the above configuration have been adopted.
第３図は従来の遅波回路構体２０の断面図を示し、第４
図は第３図のＢ−Ｂ断面図を示すが、らせん１は、その
外周囲に３本の誘電体支柱２３．４を配設し、外囲器５
内に収納されている。FIG. 3 shows a cross-sectional view of the conventional slow wave circuit structure 20, and the fourth
The figure shows a cross-sectional view taken along line B-B in FIG.
It is stored inside.
外囲器５は、円板状磁極６及び非磁性の円筒状金属スペ
ーサ７を交互に組合せ接合され形成されている。外囲器
５の両端にはコレクタ８及び電子銃９を接合する円板状
シールド部品１０．１１が具備され、さらにその近傍に
は高周波を入出力する高周波窓１２．１３が配設され遅
波回路用の外囲器５が構成される。外囲器５は、円板状
磁極６円筒状金属スペーサ７、円板状シールド部品１０
１１及び入出力の高周波窓１２．１３がろう付等によっ
て接合された後、らせん１及び３本の誘電体支柱２，３
．４を収納する穴の成形切削加工を行なうが、これは、
らせん１及び誘電体支柱２３．４を焼ばめによって挿入
、締結を行なうため、締結代を適切な値にすることと穴
の内周面の凹凸を除去し鏡面状に仕上げる必要があるか
らである。穴の削り代は、０，２〜０．３ｍｍが一般的
で、切削にはガン′ドリルが用いられる。遅波回路５の
軸方向長さは製品によって異なるが、回路が長くなる場
合は、分割型にするので、−回路の長さは１００ｍｍ前
後が一般的である。又電子銃９側には、電子銃９を接合
するシールド部品１０から円環状半割り磁石（図示せず
）５個目に入力高周波窓１２を配設する場合が多い。円
板状磁極６で言えば、シールド部品１０から第４番目と
第５番目の間の円筒状金属スペーサ７に入力高周波窓が
具備されている。これは、進行波管のパスバンド特性に
よって起動及び停止時にらせん電流が一時的に増大する
か、この時、電子銃より放射された電子ビームはほとん
どが回路の入力側に集中するので、らせん１は電子ビー
ムの衝突によるダメージを避けるため、らせん１の開始
点を前述したようにずらしている。そしてその部分には
らせん１と同等の内径を有し、融点の高い円筒状金属、
例えばモリブデン等でできたビームカッタ１８を配設し
である。The envelope 5 is formed by alternately combining and joining disc-shaped magnetic poles 6 and non-magnetic cylindrical metal spacers 7. A disk-shaped shield component 10.11 is provided at both ends of the envelope 5 to connect the collector 8 and the electron gun 9, and a high-frequency window 12.13 for inputting and outputting high-frequency waves is arranged near the disk-shaped shield component 10.11 to transmit slow waves. An envelope 5 for the circuit is constructed. The envelope 5 includes a disc-shaped magnetic pole 6, a cylindrical metal spacer 7, and a disc-shaped shield component 10.
11 and the input/output high frequency windows 12 and 13 are joined by brazing etc., then the helix 1 and the three dielectric columns 2 and 3 are connected.
．． The hole that accommodates 4 is formed and cut, but this is done by
This is because the helix 1 and the dielectric support 23.4 are inserted and fastened by shrink fitting, so it is necessary to set the fastening allowance to an appropriate value and to remove irregularities on the inner peripheral surface of the hole to give it a mirror-like finish. be. The cutting allowance for the hole is generally 0.2 to 0.3 mm, and a gun drill is used for cutting. The axial length of the slow wave circuit 5 varies depending on the product, but if the circuit is long, it is of a split type, so the length of the circuit is generally around 100 mm. Further, on the electron gun 9 side, an input high frequency window 12 is often disposed at the fifth annular half magnet (not shown) from the shield component 10 to which the electron gun 9 is joined. In the case of the disc-shaped magnetic pole 6, the cylindrical metal spacer 7 between the fourth and fifth shield components 10 is provided with an input high-frequency window. This is because either the helical current temporarily increases when starting and stopping due to the passband characteristics of the traveling wave tube, or at this time, most of the electron beams emitted from the electron gun are concentrated on the input side of the circuit, so the helix 1 In order to avoid damage caused by electron beam collision, the starting point of helix 1 is shifted as described above. And in that part, a cylindrical metal with an inner diameter equivalent to that of helix 1 and a high melting point,
For example, a beam cutter 18 made of molybdenum or the like is provided.
従って、外囲器５は遅波回路の長さより更に長くなる。Therefore, the envelope 5 becomes longer than the length of the slow wave circuit.
外囲器５はガンドリルによる穴の切削加工後、その穴に
らせん及び３本の誘電体支柱２゜３．４が焼ばめ方式に
より挿入され締結固定されている。そしてらせん１の両
端は入出力の高周波窓１２．１３の中心軸導体１４．１
５とそれぞれ接合されて遅波回路構体２０を構成する。After cutting a hole with a gun drill in the envelope 5, a spiral and three dielectric supports 2.degree. 3.4 are inserted into the hole by a shrink fit method and fastened and fixed. Both ends of the spiral 1 are the central axis conductor 14.1 of the input/output high frequency window 12.13.
5 to form a slow wave circuit structure 20.
この遅波回路構体２０の出力端には、コレクタ８が、又
入力端には電子銃９が、回路端のシールド部品１０１１
と接合され、進行波管と形成している。A collector 8 is located at the output end of this slow wave circuit structure 20, an electron gun 9 is located at the input end, and a shield component 1011 is located at the circuit end.
It is joined to form a traveling wave tube.
コレクタ８及び電子銃９は、それぞれの接合端の封入皿
１６．１７とシールド部品１０．１１が嵌合し所望の同
心度を得るよう設計されている。The collector 8 and the electron gun 9 are designed so that the enclosure plate 16.17 and the shield part 10.11 at the respective joint ends fit together to obtain the desired concentricity.
この従来の遅波回路構体２０においては、軸方向長が１
００〜１５０ｍｍの長さとなり、その中心部の穴を更に
切削加工し、内周面を鏡面仕上すると共に内径をミクロ
ン単位で管理する超精密加工が必要である。そのためガ
ンドリルによる切削加工を行なっているが、その穴径に
よっては、かなりの曲りが発生する。この曲りは、入出
力間のゆるやかな曲りであるため、電子ビーム集束上特
に問題とはならず、良好なビーム透過特性が得られるが
、遅波回路構体２０に電子銃９を接合する上で重大な問
題となる。出力端のシールド部品１１を基準にセンター
出しを行なって入力端方向へガンドリルで切削加工した
場合、入力端のシールド部品１０との偏心はかなり大き
な数字となる。In this conventional slow wave circuit structure 20, the axial length is 1
The length is 0.00 to 150 mm, and it requires ultra-precision machining to further cut the hole in the center, give the inner peripheral surface a mirror finish, and control the inner diameter in microns. For this reason, cutting is performed using a gun drill, but depending on the hole diameter, considerable bending may occur. Since this bend is a gentle bend between the input and output, it does not pose a particular problem in focusing the electron beam, and good beam transmission characteristics can be obtained. However, when joining the electron gun 9 to the slow wave circuit structure 20, This is a serious problem. If centering is performed based on the shield component 11 at the output end and cutting is performed with a gun drill toward the input end, the eccentricity with respect to the shield component 10 at the input end will be quite large.
従って、電子銃９はその接合端の封入皿１６とシールド
部品１０との相互の嵌合により遅波回路構体２０とのセ
ンターが得られるよう設計されているため、シールド部
品１０との偏心に応じて電子銃９と遅波回路構体２０の
穴との中心は、当然それとほぼ同等のずれを生じる。こ
のずれは電子銃９からの電子ビームの遅波回路構体２０
への入射条件に重大な影響を及ぼしビーム透過特性の悪
化をまねき、正常な動作のさまたげとなる。Therefore, since the electron gun 9 is designed so that the center with the slow wave circuit structure 20 is obtained by the mutual fitting of the enclosure plate 16 at the joint end with the shield component 10, Naturally, the centers of the electron gun 9 and the hole of the slow wave circuit structure 20 are shifted by approximately the same amount. This deviation is caused by the slow wave circuit structure 20 of the electron beam from the electron gun 9.
This seriously affects the incident conditions on the beam, leading to deterioration of beam transmission characteristics and interfering with normal operation.
本発明の遅波回路構体は、入力側高周波窓と入力端シー
ルド部品との間の任意の磁極部で分割した遅波回路本体
と入力部磁極組立とをそれぞれ独立して形成し、らせん
及び誘電体支柱を遅波回路に挿入した後、遅波回路と入
力部磁極組立とをろう付等により嵌合し、遅波回路構体
を構成している。The slow-wave circuit structure of the present invention has a slow-wave circuit main body and an input magnetic pole assembly separated by an arbitrary magnetic pole between an input-side high-frequency window and an input end shield component, each formed independently of the other. After inserting the body strut into the slow-wave circuit, the slow-wave circuit and the input magnetic pole assembly are fitted together by brazing or the like to form a slow-wave circuit structure.
〔実施例〕
本発明について図面を参照して説明する。第１図は本発
明の一実施例の遅波回路構体を用いた管球の断面図、第
２図は第１図のＡ−Ａ断面図である。遅波回路構体４１
は遅波回路３１と入力部磁極組立３２の二つのブロック
に分けられる。遅波回路の外囲器３４は円板状磁極６と
円筒状金属スペーサ７、入出力め高周波窓１２．１３及
び出力端にはシールド部品１１が入力側には接合部の磁
極３３とがろう付結合され形成される。接合部磁ｆ！３
３は、入力側高周波窓１２から２つめの磁極となるよう
構成されている。そして、外囲器３４の中心穴を切削加
工後、らせん１及び３本の誘電体支柱２，３．４は焼ば
め法により外囲器３４の中心穴に挿入され締結同定され
る。その後らせん１の端は入出力の高周波窓１２．１３
の中心軸導体１４．１５にそれぞれ接合されて遅波回路
３１が構成されている。[Example] The present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a tube using a slow-wave circuit structure according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line AA in FIG. Slow wave circuit structure 41
is divided into two blocks: a slow wave circuit 31 and an input magnetic pole assembly 32. The envelope 34 of the slow-wave circuit includes a disc-shaped magnetic pole 6, a cylindrical metal spacer 7, high-frequency windows 12 and 13 for input and output, a shield component 11 at the output end, and a magnetic pole 33 at the junction on the input side. It is attached and formed. Joint magnetic f! 3
3 is configured to be the second magnetic pole from the input side high frequency window 12. After cutting the center hole of the envelope 34, the helix 1 and the three dielectric supports 2, 3.4 are inserted into the center hole of the envelope 34 by shrink fitting and fastened and identified. After that, the end of helix 1 is the input and output high frequency window 12.13
A slow wave circuit 31 is constructed by being connected to the center axis conductors 14 and 15 of the respective central axis conductors 14 and 15, respectively.
一方入力部磁極組立３２は、１個の接合部磁極３３と２
個の円板状磁極６，３個の円筒状金属スペーサ７及び１
個のシールド部品１０が組合せられ、ろう付結合されて
いる。そして内径は遅波回路の外囲器３４の中心穴と同
等に切削加工された後、ビームカッタ１８が配設されて
形成される。On the other hand, the input magnetic pole assembly 32 has one joint magnetic pole 33 and two
3 disc-shaped magnetic poles 6, 3 cylindrical metal spacers 7 and 1
The shield parts 10 are combined and brazed together. Then, the inner diameter is cut to be equivalent to the center hole of the envelope 34 of the slow wave circuit, and then the beam cutter 18 is installed and formed.
接合部磁極３３はそれぞれ円板状磁＆６の厚さの約１／
２としている。The joint magnetic poles 33 each have a thickness of about 1/1 of the thickness of the disc-shaped magnetic &6.
2.
こうして形成された遅波回路３１と入力部磁極組立３２
を双方の接合部磁ｉ３３を突き合せ、高周波ろう付等に
より接合する。この時、両方のセンターを合わせるため
適当なマンドリルを通してろう付接合する。このように
して遅波回路構体４１は形成される。The thus formed slow wave circuit 31 and input magnetic pole assembly 32
The two joint parts magnetic i33 are brought together and joined by high frequency brazing or the like. At this time, in order to align the centers of both pieces, a suitable mandrill is passed through them and they are joined by brazing. In this way, the slow wave circuit structure 41 is formed.
外囲器３４の出力端のシールド部品］１の中心を基準に
して切削加工した場合、入力端のシールド部品１０とは
、かなりの偏心を生じる。一方、入力部磁極組立３２の
軸方向要約１０ｍｍ、内径、下穴及び削り代を外囲器３
４と同等とした場合、入力部シールド１０及び接合部磁
極３３と切削後中心穴との偏心は、許容できる範囲内に
加工可能である。これ等を適当なマンドリルを通して接
合部磁極３３どうしを突合せ接合することにより、電子
銃９と遅波回路構体４１との同心度をより良好な状態に
することができる。[Shield component at the output end of the envelope 34] When cutting is performed based on the center of the shield component 1 at the output end of the envelope 34, considerable eccentricity occurs with respect to the shield component 10 at the input end. On the other hand, the axial direction of the input magnetic pole assembly 32 is approximately 10 mm, the inner diameter, prepared hole, and machining allowance are
4, the eccentricity between the input part shield 10 and the joint part magnetic pole 33 and the center hole after cutting can be processed within an allowable range. By butting and joining these joint portion magnetic poles 33 to each other through a suitable mandrel, the concentricity between the electron gun 9 and the slow wave circuit structure 41 can be improved.
以上説明したように、本発明は、入力側の磁極組立を一
部独立して形成した後、遅波回路と、らせん内径とビー
ムカッタ内径を基準に相互のセンターを合致させ接合し
て構成される遅波回路構体である。従って電子銃と良好
な同心度が確保できるため、ビーム透過特性がより向上
するという効果を有する。As explained above, the present invention is constructed by forming a part of the magnetic pole assembly on the input side independently, and then joining the slow wave circuit and the slow wave circuit by aligning their mutual centers based on the inner diameter of the helix and the inner diameter of the beam cutter. This is a slow wave circuit structure. Therefore, good concentricity with the electron gun can be ensured, which has the effect of further improving beam transmission characteristics.
／−−−らヒん、 ：Ｚ、３．４−一一二秀電体克往、
タ、３４−外厘益１−−−円Ｍ４に４１＋、％−ＦＩＭ
ｔｊｅ佐へ” ”ｊ、 ／６．／４−ＰＩＭｊ＆５−
Ａ）’４Ｐ２゜／２．７３−ａＦＥｉ波乞、 ／４．ｔ
ｓ−伸七軸’Ｊ４体、ｙｔ、ｎす１入皿、 Ｈｏ、ｔ４
＝ｂ力、メ３１−遵直回路、！−助；１必と紐１．諮」
鈴８１仏社、４１ａ制路塙体/--- Rahin, :Z, 3.4-112 Hideden Body Katsuo,
ta, 34-gaikin profit 1---41+ in yen M4, %-FIM
To tjesa” “j, /6. /4-PIMj&5-
A) '4P2゜/2.73-aFEi Wave, /4. t
s-elongated seven axis 'J4 bodies, yt, nsu 1 dish, Ho, t4
=b force, Me31-Compliant circuit,! - Help; 1 required string 1. "Consultation"
Suzu 81 Butsusha, 41a roadblock
第１図は本発明の一実施例の管球断面図、第２図は第１
図のＡ−Ａ断面図、第３図は従来の遅波回路構体を用い
た管球断面図、第４図は第３図のＢ−Ｂ断面図である。
１・・・らせん、２，３．４・・・誘電体支柱、５，３
゜４・・・外囲器、６・・・円板状磁極、７・・・円筒
状金属スペーサ、８・・・コレクタ、９・・・電子銃、
１０．１１・・円板状シールド部品、１２．１３・・・
高周波窓、１４．１５・・・中心軸導体、１６．１７・
・・封入皿、１８・・・ビームカッタ、２０．４１・・
・遅波回路構体、３１．・・・遅波回路、３２・・・入
力部磁極組立、３第１回
／
第２図FIG. 1 is a sectional view of a tube according to an embodiment of the present invention, and FIG.
3 is a sectional view of a tube using a conventional slow wave circuit structure, and FIG. 4 is a sectional view taken along BB in FIG. 3. 1... Helix, 2, 3. 4... Dielectric pillar, 5, 3
゜4... Envelope, 6... Disc-shaped magnetic pole, 7... Cylindrical metal spacer, 8... Collector, 9... Electron gun,
10.11...Disc-shaped shield parts, 12.13...
High frequency window, 14.15... Central axis conductor, 16.17.
...Enclosure dish, 18...Beam cutter, 20.41...
・Slow wave circuit structure, 31. ...Slow wave circuit, 32...Input section magnetic pole assembly, 3 Part 1/Fig. 2
Claims (1)
固着しかつ、両端部に高周波窓及びコレクタと電子銃を
接合する円板状のシールド部品を有する外囲器内にらせ
んおよび複数の誘電体支柱を内蔵してなるらせん形遅波
回路構体において、電子銃と接合する円板状シールド部
品と入力側高周波窓間で前記磁極と金属スペーサで構成
される外囲器を分割した構造とし、遅波回路を構成する
最終段階で接合して、遅波回路を形成することを特徴と
するらせん形遅波回路構体。A spiral and a plurality of disk-shaped magnetic poles and cylindrical metal spacers are alternately laminated and fixed in an envelope, which has a high-frequency window at both ends and a disk-shaped shield component that connects the collector and electron gun. In a spiral slow-wave circuit structure having a built-in dielectric support column, an envelope consisting of the magnetic pole and a metal spacer is divided between a disk-shaped shield component connected to an electron gun and an input-side high-frequency window. A spiral slow-wave circuit structure characterized in that these are joined at the final stage of configuring the slow-wave circuit to form the slow-wave circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22292490A JP2679378B2 (en) | 1990-08-24 | 1990-08-24 | Spiral slow wave circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22292490A JP2679378B2 (en) | 1990-08-24 | 1990-08-24 | Spiral slow wave circuit structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04106842A true JPH04106842A (en) | 1992-04-08 |
| JP2679378B2 JP2679378B2 (en) | 1997-11-19 |
Family
ID=16789999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22292490A Expired - Lifetime JP2679378B2 (en) | 1990-08-24 | 1990-08-24 | Spiral slow wave circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2679378B2 (en) |
-
1990
- 1990-08-24 JP JP22292490A patent/JP2679378B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2679378B2 (en) | 1997-11-19 |
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