JPH0425800Y2 - - Google Patents
Info
- Publication number
- JPH0425800Y2 JPH0425800Y2 JP9854685U JP9854685U JPH0425800Y2 JP H0425800 Y2 JPH0425800 Y2 JP H0425800Y2 JP 9854685 U JP9854685 U JP 9854685U JP 9854685 U JP9854685 U JP 9854685U JP H0425800 Y2 JPH0425800 Y2 JP H0425800Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit section
- frequency circuit
- tuner
- tuning mechanism
- cavity
- 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
- 239000000463 material Substances 0.000 claims description 6
- 238000010894 electron beam technology Methods 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000792 Monel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Microwave Tubes (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は多空胴クライストロン、特にその同調
機構に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a multi-cavity klystron, and particularly to a tuning mechanism thereof.
多空胴クライストロンは、電子ビームを形成す
る電子銃部、この電子ビームと相互作用を行なう
高周波回路部、電子ビームを捕集するコレクタ部
および電子ビームを集束する集束装置より成り立
つている。又、高周波回路部には、高周波電力を
管球内部に入力する入力部および高周波電力を取
り出す出力部が取り付けられている。
A multi-cavity klystron consists of an electron gun section that forms an electron beam, a high frequency circuit section that interacts with the electron beam, a collector section that collects the electron beam, and a focusing device that focuses the electron beam. Further, the high frequency circuit section is provided with an input section for inputting high frequency power into the interior of the tube and an output section for taking out the high frequency power.
第２図に示す様に、高周波回路部１は複数個の
空胴共振器２で形成されており、それぞれの空胴
共振器には、共振周波数を変化させるための同調
機構が設けられている。この同調機構は真空内部
のチユーナ３と、これを真空外部から動かすため
の外部同調機構５とから形成されており、外部同
調機構は、数本の支柱６で高周波回路部に固定さ
れている。従来、この支柱として黄銅（真ちゆ
う）が使われていた。なお、チユーナ３は外部同
調機構５とチユーナシヤフト４によつて連結され
ている。 As shown in FIG. 2, the high frequency circuit section 1 is formed of a plurality of cavity resonators 2, and each cavity resonator is provided with a tuning mechanism for changing the resonance frequency. . This tuning mechanism is made up of a tuner 3 inside the vacuum and an external tuning mechanism 5 for moving the tuner from outside the vacuum, and the external tuning mechanism is fixed to the high frequency circuit section with several pillars 6. Traditionally, brass was used for this support. Note that the tuner 3 is connected to an external tuning mechanism 5 by a tuner shaft 4.
多空胴クライストロンの電気的特性の一つに周
波数帯域特性がある。この周波数帯域特性は、各
空胴共振器をスタガー同調して得られる。各空胴
共振器の共振周波数は真空内部のチユーナの位置
で決まる。しかし、クライストロンを動作させ出
力を出すと高周波回路部で発生する熱のため各空
胴共振器の共振周波数が変化し周波数帯域特性が
ずれてしまう。このためこの帯域特性のずれを少
しでも小さくするため、従来いろいろな手段が採
用されてきた。しかし、準ミリ波帯等の高い周波
数帯が使用される様になると、従来問題とならな
かつた部分の熱膨張が問題となつてきた。すなわ
ち、外部同調機構を支えている支柱の熱膨張によ
る伸びである。
One of the electrical characteristics of a multi-cavity klystron is its frequency band characteristics. This frequency band characteristic is obtained by stagger tuning each cavity resonator. The resonant frequency of each cavity resonator is determined by the position of the tuner inside the vacuum. However, when the klystron is operated and output is produced, the resonant frequency of each cavity resonator changes due to the heat generated in the high-frequency circuit section, causing a shift in frequency band characteristics. For this reason, various means have been employed in the past in order to reduce this shift in band characteristics as much as possible. However, as high frequency bands such as the quasi-millimeter wave band come to be used, thermal expansion in parts that did not pose a problem in the past has become a problem. That is, the elongation due to thermal expansion of the strut supporting the external tuning mechanism.
準ミリ波帯になると数10μmの膨張による伸び
が問題となる。従来、外部同調機構を支えている
支柱の材料として黄銅（真ちゆう）が使われてい
た。黄銅の熱膨張率は18〜19×10-6／℃であり、
アルミニウムより小さく、又、ステンレスより多
少大きい程度である。しかし、熱伝動率が
1.21W／cm／℃と比較的大きいため高周波回路部
の熱が支柱に伝わりやすく支柱の温度が高くなり
熱膨張による伸びが問題となつてくる。 In the quasi-millimeter wave band, elongation due to expansion of several tens of micrometers becomes a problem. Traditionally, brass was used as the material for the pillars supporting the external tuning mechanism. The coefficient of thermal expansion of brass is 18-19×10 -6 /℃,
It is smaller than aluminum and somewhat larger than stainless steel. However, the thermal conductivity
Because it is relatively large at 1.21W/cm/°C, the heat from the high-frequency circuit easily transfers to the pillar, raising the temperature of the pillar and causing problems with elongation due to thermal expansion.
本考案は複数個の空胴共振器からなる高周波回
路部を有し、空胴共振器はチユーナおよびチユー
ナに接続された外部同調機構を備えている多空胴
クライストロンにおいて、外部同調機構を高周波
回路部に固定する支柱が、高周波回路部および支
柱より小さな熱伝導率を有する材料で作られたア
ダプタを介して高周波回路部に固定されたことを
特徴とする。
The present invention is a multi-cavity klystron that has a high-frequency circuit section consisting of a plurality of cavity resonators, the cavity resonator is equipped with a tuner, and an external tuning mechanism connected to the tuner. The strut is fixed to the high-frequency circuit section via an adapter made of a material having a lower thermal conductivity than the high-frequency circuit section and the strut.
次に図面を参照して本考案について詳細に説明
する。
Next, the present invention will be explained in detail with reference to the drawings.
第１図は本考案の一実施例を示す図である。高
周波回路部１を形成する空胴共振器２には共振周
波数を変化させるためのチユーナ３が設けられて
おり、チユーナ３に接続されたチユーナシャフト
４の先端は外部同調機構５に接続されている。外
部同調機構５は支柱６によつてアダプタ７を介し
て高周波回路部１に固定されている。このアダプ
タ７は、高周波回路部１や支柱６に比べ熱伝導率
の悪い材料、例えばモネルで作られており、高周
波回路部１にろう付やねじ等で固定されている。 FIG. 1 is a diagram showing an embodiment of the present invention. The cavity resonator 2 forming the high frequency circuit section 1 is provided with a tuner 3 for changing the resonance frequency, and the tip of a tuner shaft 4 connected to the tuner 3 is connected to an external tuning mechanism 5. There is. The external tuning mechanism 5 is fixed to the high frequency circuit section 1 by a support 6 via an adapter 7. The adapter 7 is made of a material with lower thermal conductivity than the high frequency circuit section 1 and the support column 6, such as Monel, and is fixed to the high frequency circuit section 1 by brazing, screws, or the like.
以上説明した様に本考案においては、外部同調
機構を高周波回路部に支柱で固定する際に熱伝導
率の悪い材料で使られたアダプタを介して行なう
ことにより、高周波回路部の熱が支柱に伝わるの
を抑えることができ、支柱の熱膨張による周波数
帯域特性のずれを使用上問題ない程度に抑えるこ
とができる。
As explained above, in this invention, when fixing the external tuning mechanism to the high-frequency circuit section with a support, the heat of the high-frequency circuit section is transferred to the support by using an adapter made of a material with poor thermal conductivity. It is possible to suppress the transmission of energy, and it is possible to suppress deviations in frequency band characteristics due to thermal expansion of the struts to a level that poses no problem in use.
第１図は本考案の一実施例を示す図、第２図は
従来の高周波回路部および外部同調機構の構造を
示す図である。
１……高周波回路部、２……空胴共振器、３…
…チユーナ、４……チユーナシヤフト、５……外
部同調機構、６……支柱、７……アダプタ。
FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing the structure of a conventional high frequency circuit section and external tuning mechanism. 1... High frequency circuit section, 2... Cavity resonator, 3...
... Tuner, 4... Tuner shaft, 5... External tuning mechanism, 6... Support column, 7... Adapter.
Claims (1)
し、空胴共振器はチユーナおよびチユーナに接続
された外部同調機構を具備する多空胴クライスト
ロンにおいて、前記外部同調機構を高周波回路部
に固定する支柱が、前記高周波回路部および支柱
を形成する材料より小さな熱伝動率を有する材料
で形成されたアダプタを介して高周波回路部に固
定されたことを特徴とする多空洞クライストロ
ン。 In a multi-cavity klystron that has a high-frequency circuit section consisting of a plurality of cavity resonators, the cavity resonator is equipped with a tuner and an external tuning mechanism connected to the tuner, the external tuning mechanism is fixed to the high-frequency circuit section. A multi-cavity klystron, characterized in that a strut is fixed to a high frequency circuit section via an adapter made of a material having a lower thermal conductivity than the material forming the high frequency circuit section and the strut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9854685U JPH0425800Y2 (en) | 1985-06-28 | 1985-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9854685U JPH0425800Y2 (en) | 1985-06-28 | 1985-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS627146U JPS627146U (en) | 1987-01-16 |
| JPH0425800Y2 true JPH0425800Y2 (en) | 1992-06-22 |
Family
ID=30966578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9854685U Expired JPH0425800Y2 (en) | 1985-06-28 | 1985-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425800Y2 (en) |
-
1985
- 1985-06-28 JP JP9854685U patent/JPH0425800Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS627146U (en) | 1987-01-16 |
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