JPS625521B2 - - Google Patents
Info
- Publication number
- JPS625521B2 JPS625521B2 JP1036981A JP1036981A JPS625521B2 JP S625521 B2 JPS625521 B2 JP S625521B2 JP 1036981 A JP1036981 A JP 1036981A JP 1036981 A JP1036981 A JP 1036981A JP S625521 B2 JPS625521 B2 JP S625521B2
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- coaxial line
- coaxial
- stub angle
- terminal
- 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
- 239000004020 conductor Substances 0.000 claims description 37
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/06—Movable joints, e.g. rotating joints
- H01P1/062—Movable joints, e.g. rotating joints the relative movement being a rotation
- H01P1/066—Movable joints, e.g. rotating joints the relative movement being a rotation with an unlimited angle of rotation
- H01P1/069—Movable joints, e.g. rotating joints the relative movement being a rotation with an unlimited angle of rotation the energy being transmitted in at least one ring-shaped transmission line located around an axial transmission line; Concentric coaxial systems
Landscapes
- Waveguide Connection Structure (AREA)
Description
【発明の詳細な説明】
この発明は、マイクロ波で用いられる多チヤネ
ルロータリジヨイントの改良に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION This invention relates to improvements in multichannel rotary joints used in microwaves.
この種のロータリジヨイントは、伝送線路にチ
ヨークを設けることにより、電気的に不連続な
く、一方の伝送線路を周方向に対して自由に回転
することができるものである。 This type of rotary joint allows one transmission line to rotate freely in the circumferential direction without electrical discontinuity by providing a transmission line with a yoke.
又アンテナビームを複数個用いる場合、あるい
は、複数の周波数帯域を用いるレーダなどにおい
ては、多チヤネルロータリジヨイントが用いられ
る。 Furthermore, when using a plurality of antenna beams or in a radar using a plurality of frequency bands, a multi-channel rotary joint is used.
第１図に同軸線路を同心円上に複数個配置して
なる多重同軸線路を用いた従来の２チヤネルロー
タリジヨイントの断面図を示す。図中、１，２は
チヤネルＡの端子Ａ、端子Ｂ、３，４はチヤネル
Ｂの端子Ｃ、端子Ｄ、５はチヤネルＡの波が伝搬
する同軸線路Ａ、６，７は同軸線路Ａ５の内導体
Ａ、外導体Ａ、８はチヤネルＢの波が伝搬する同
軸線路Ｂ、９，１０は同軸線路Ｂ８の内導体Ｂ、
外導体Ｂ、１１，１２は同軸線路Ｂ８と端子Ｃ
３、同軸線路Ｂ８と端子Ｄ４とをそれぞれ接続す
るためのスタブアングルＡ、スタブアングルＢ，
１３は内導体Ａ６に設けるチヨークＡ、１４は外
導体Ａ７に設けるチヨークＢ、１５は内導体Ｂに
設けるチヨークＣ、１６は外導体Ｂに設けるチヨ
ークＤ、１７，１８は内導体Ａを支持するための
誘電体で作られたリングＡ、リングＢ、１９はベ
アリングである。なお同軸線路Ａ５、同軸線路Ｂ
６にはいずれもTEMモードが伝搬するものとす
る。 FIG. 1 shows a cross-sectional view of a conventional two-channel rotary joint using multiple coaxial lines formed by arranging a plurality of coaxial lines concentrically. In the figure, 1 and 2 are terminal A and terminal B of channel A, 3 and 4 are terminal C and terminal D of channel B, 5 is coaxial line A through which the waves of channel A propagate, and 6 and 7 are coaxial line A5. Inner conductor A, outer conductor A, 8 are coaxial line B through which the waves of channel B propagate, 9 and 10 are inner conductor B of coaxial line B8,
Outer conductors B, 11, 12 are coaxial line B8 and terminal C
3. Stub angle A, stub angle B for connecting coaxial line B8 and terminal D4, respectively.
13 is a yoke A provided on the inner conductor A6, 14 is a yoke B provided on the outer conductor A7, 15 is a yoke C provided on the inner conductor B, 16 is a yoke D provided on the outer conductor B, and 17 and 18 support the inner conductor A. Rings A, B, and 19 made of dielectric material are bearings. In addition, coaxial line A5, coaxial line B
6, it is assumed that the TEM mode propagates in both cases.
次に上記ロータリジヨイントの主要部品である
チヨークおよびスタブアングルについて説明す
る。 Next, the main parts of the rotary joint, the yoke and the stub angle, will be explained.
第２図にチヨークＡ１３の拡大図を示す。図
中、チヨークＡ１３の先端を位置P1、チヨークＡ
１３の同軸線路Ａ５側を位置P2、位置P1と位置P2
との距離をL1とする。 FIG. 2 shows an enlarged view of the chiyoke A13. In the figure, the tip of the yoke A13 is at position P 1 and the tip of the yoke A13 is
13 coaxial line A5 side at position P 2 , position P 1 and position P 2
Let the distance between the two points be L 1 .
いま、同軸線路Ａ５にはTEMモード波が伝搬
しているからチヨークＡ１３内に形成されている
同軸線路にもTEMモード波が励振される。この
とき、L1の長さを電気長で90度となるように調
整すると、位置P1において同軸線路は開放状態と
なつているため、位置P2においては電気的に短絡
状態となる。このため、チヨークＡ１３を設けた
内導体Ａ６は、機械的にはギヤツプがあるため内
導体Ａ６の一方を周方向に回転することができる
が電気的には、連続な特性を示す。 Now, since the TEM mode wave is propagating in the coaxial line A5, the TEM mode wave is also excited in the coaxial line formed in the chain yoke A13. At this time, when the length of L1 is adjusted to be 90 degrees in terms of electrical length, the coaxial line is in an open state at position P1 , and therefore becomes electrically short-circuited at position P2 . Therefore, the inner conductor A6 provided with the yoke A13 has a gap mechanically, so that one side of the inner conductor A6 can be rotated in the circumferential direction, but electrically it exhibits continuous characteristics.
第３図にチヨークＢ１４の拡大図を示す。 FIG. 3 shows an enlarged view of the yoke B14.
このチヨークＢ１４はラジアル線路で構成され
ており、図中、チヨークＢ１４の先端を位置P3、
チヨークＢ１４の同軸線路５側を位置P5、P3とP5
の中央を位置P4とする。いま、同軸線路Ａ５には
TEMモード波が伝搬しているからチヨークＢ１
４には、ラジアル線路のE00モード波が励振され
る。このE00モード波は、上記TEMモード波と同
様、しや断波長の存在しないモード波である。 This yoke B14 is composed of a radial line, and in the figure, the tip of the yoke B14 is located at position P 3 ,
The coaxial line 5 side of the chain yoke B14 is located at P 5 , P 3 and P 5
Let the center be position P4 . Now, coaxial line A5 has
Because the TEM mode wave is propagating, Chi York B1
4, the E 00 mode wave of the radial line is excited. This E 00 mode wave is a mode wave that does not have a shear wavelength, similar to the above-mentioned TEM mode wave.
このとき、位置P3と位置P4との距離をL2、位
置P4と位置P5との距離をL3とし、L2，L3の長さ
をそれぞれ電気長で90度となるように調整する
と、位置P3においてラジアル線路は短絡状態とな
つているため、位置P4では電気的に開放状態、位
置P5では電気的に短絡状態となる。このため、チ
ヨークＢ１４を設けた外導体Ａ７は機械的にはギ
ヤツプがあるため、外導体Ａ７の一方を周方向に
回転することができるが、電気的には連続な特性
を示す。 At this time, the distance between position P 3 and position P 4 is L 2 , the distance between position P 4 and position P 5 is L 3 , and the lengths of L 2 and L 3 are each 90 degrees in terms of electrical length. When adjusted, the radial line is in a short-circuited state at position P3 , so it is electrically open at position P4 , and electrically short-circuited at position P5 . Therefore, since the outer conductor A7 provided with the yoke B14 has a mechanical gap, one side of the outer conductor A7 can be rotated in the circumferential direction, but it exhibits continuous characteristics electrically.
ところでスタブアングルは、チヤネルＢの波を
端子Ｃ３、端子Ｄ４にとり出すため、主伝送路で
ある同軸線路Ｂ８を直角に曲げるためのものであ
る。 By the way, the stub angle is for bending the coaxial line B8, which is the main transmission line, at a right angle in order to take out the waves of the channel B to the terminals C3 and D4.
第４図にスタブアングルＡ１１の拡大図を示
す。ここで用いるスタブアングルは１個の直交分
岐路と２個の共軸分岐路から成るＴ字形分岐路の
互いに直交する直交分岐路と一方の共軸分岐路と
を主伝送路とし、他方の共軸分岐路を副伝送路と
して用い、副伝送路の一端を短絡、かつ電気長が
90度となるように、第４図中に示す長さL4を調
整して用いるものである。L4を所要の長さにす
ると、副伝送路の一端が短絡されているため、副
伝送路の他端は電気的に開放状態となる。このた
め、Ｔ字形分岐路は、副伝送路の影響をうけな
い。 FIG. 4 shows an enlarged view of the stub angle A11. The stub angle used here is a T-shaped branch consisting of one orthogonal branch and two coaxial branches. Use the shaft branch as a sub-transmission line, short-circuit one end of the sub-transmission line, and shorten the electrical length.
The length L4 shown in FIG. 4 is adjusted so that the angle is 90 degrees. When L 4 is set to the required length, one end of the sub-transmission line is short-circuited, so the other end of the sub-transmission line becomes electrically open. Therefore, the T-shaped branch path is not affected by the sub-transmission path.
また、第５図にスタブアングルＢ１２の拡大図
を示す。 Further, FIG. 5 shows an enlarged view of the stub angle B12.
スタブアングルＡ１１は、内導体Ｂ９と外導体
Ｂ１０とが固定されているのに対し、スタブアン
グルＢ１２は、内導体Ｂ９と外導体Ｂ１０とはチ
ヨークＣ１５を介して接続してあるため、電気的
には連続な特性を示すが、互いに周方向に回転可
能な構造となつている。ここでチヨークＣ１５は
長さL5のラジアル線路と長さL6の同軸線路から
形成されており、それぞれの電気長は90度となつ
ている。チヨークＣ１５のラジアル線路側の端を
短絡すると、チヨークＣ１５の他端は電気的に短
絡状態となる。このため、スタブアングルＢ１２
は前記スタブアングルＡ１１と同様に動作する。 In the stub angle A11, the inner conductor B9 and the outer conductor B10 are fixed, whereas in the stub angle B12, the inner conductor B9 and the outer conductor B10 are connected via the chain yoke C15, so that the inner conductor B9 and the outer conductor B10 are electrically connected. Although they exhibit continuous characteristics, they have a structure that allows them to rotate relative to each other in the circumferential direction. Here, the cable yoke C15 is formed of a radial line with a length L5 and a coaxial line with a length L6 , each having an electrical length of 90 degrees. When the end of the yoke C15 on the radial line side is short-circuited, the other end of the yoke C15 becomes electrically short-circuited. For this reason, the stub angle B12
operates in the same manner as the stub angle A11.
このように、この２チヤネルロータリジヨイン
トは端子Ａ１に対し端子Ｂ２、端子Ｃ３に対し端
子Ｄ４をそれぞれチヨークを介して配置すること
により端子Ａ１、端子Ｃ３は端子Ｂ２、端子Ｄ４
に対して互いに周方向に回転が可能となる。 In this way, in this two-channel rotary joint, terminal A1 and terminal C3 are connected to terminal B2 and terminal D4 by arranging terminal A1 and terminal B2, and terminal C3 and terminal D4 through the chain yoke, respectively.
rotation in the circumferential direction relative to each other is possible.
しかし、従来のロータリジヨイントはスタブア
ングルＢ１２の一部を形成する同軸線路Ｂ８にチ
ヨークＣ１５を設けるため、同軸線路Ｂ８の外導
体Ｂ１０が太くなる欠点があつた。 However, the conventional rotary joint has a drawback that the outer conductor B10 of the coaxial line B8 becomes thicker because the rotary joint C15 is provided on the coaxial line B8 forming a part of the stub angle B12.
この発明は、この欠点を除去するため、スタブ
アングルの分岐部の直交分岐路内導体内部にチヨ
ークを設けたもので、以下図面について詳細に説
明する。 In order to eliminate this drawback, the present invention provides a tie yoke inside the orthogonal branch conductor at the branch portion of the stub angle, and will be described in detail below with reference to the drawings.
第６図にこの発明の実施例の断面図を示す。図
中１〜１９は第１図に示したものと同一であり、
２０はスタブアングルＣ、２１はスタブアングル
の分岐部の直交分岐路内導体内に設けられたチヨ
ークＥ、２２はチヨークＦである。 FIG. 6 shows a sectional view of an embodiment of the invention. 1 to 19 in the figure are the same as those shown in FIG.
20 is a stub angle C, 21 is a yoke E provided within the orthogonal branch conductor at the branch portion of the stub angle, and 22 is a stub angle F.
いま端子Ｄ４の内導体の直径が波長よりかなり
小さいとすると、チヨークＥ２１内に形成される
同軸線路にはTEMモードが励振される。チヨー
クＥ２１内に形成される同軸線路の電気長を180
度となるように調整し、チヨークＥ２１の一端を
短絡すれば、チヨークＥ２１の他端は電気的に短
絡状態となる。このため、内導体分岐部は電気的
に連続となり、スタブアングルＣ２０はスタブア
ングルＡ１１と同様な特性を示す。さらに、この
発明によるスタブアングルＣ２０を用いると同軸
線路Ｂ８内にチヨークを設ける必要がないため同
軸線路の太さを細くすることができ、ロータリジ
ヨイントを小形化および軽量化ができる。 Assuming that the diameter of the inner conductor of the terminal D4 is considerably smaller than the wavelength, a TEM mode is excited in the coaxial line formed in the cable yoke E21. The electrical length of the coaxial line formed in Chi Yoke E21 is 180
If one end of the yoke E21 is short-circuited, the other end of the yoke E21 will be electrically short-circuited. Therefore, the inner conductor branch portion becomes electrically continuous, and the stub angle C20 exhibits the same characteristics as the stub angle A11. Further, when the stub angle C20 according to the present invention is used, there is no need to provide a bow in the coaxial line B8, so the thickness of the coaxial line can be made thinner, and the rotary joint can be made smaller and lighter.
ここで、スタブアングルＢ１２をスタブアング
ルＣ２０に変更したことに伴い、チヨークＣ１５
をチヨークＦ２２に変更したが、この変更がロー
タリジヨイントの機能および電気特性に及ぼす影
響は小さい。また、ベアリング１９の配置も若干
異なるがその影響はほとんどない。 Here, due to changing the stub angle B12 to the stub angle C20, the chiyoke C15
Although the rotary joint was changed to F22, this change has little effect on the function and electrical characteristics of the rotary joint. Furthermore, the arrangement of the bearings 19 is also slightly different, but this has little effect.
なお、以上は、スタブアングルの内導体内に設
けるチヨークを、同軸線路が折り返えした形状の
ものについて示したが、この発明は、これに限ら
ず、分岐部を電気的に短絡するためのチヨークで
あれば、他の形状のチヨークを用いてもよい。ま
た、入力側スタブアングル、出力側スタブアング
ルのいずれにもこの発明によるスタブアングルを
用いてもよい。 In addition, although the above example shows a case where the coaxial line is folded back, the yoke provided in the inner conductor of the stub angle has been described. A chi yoke having another shape may be used as long as it is a chi yoke. Further, the stub angle according to the present invention may be used as both the input side stub angle and the output side stub angle.
以上のように、この発明に係る多チヤネルロー
タリジヨイントでは、スタブアングルの分岐部の
直交分岐路内導体内にチヨークを設けることによ
り同軸線路の径方向寸法を小さくすることがで
き、小形、軽量化できる利点がある。 As described above, in the multi-channel rotary joint according to the present invention, the radial dimension of the coaxial line can be reduced by providing a cheese yoke in the conductor in the orthogonal branch path at the branch part of the stub angle, and the multi-channel rotary joint is small and lightweight. It has the advantage of being scalable.
第１図は、従来の２チヤネルロータリジヨイン
トの断面図、第２図は、同軸線路の内導体に設け
るチヨークの断面図、第３図は、同軸線路の外導
体に設けるチヨークの断面図、第４図は内導体と
外導体とが固定したスタブアングルの断面図、第
５図は、内導体と外導体とが回転可能なスタブア
ングルの断面図、第６図はこの発明の一実施例の
２チヤネルロータリジヨイントの断面図である。
図中、１は端子Ａ、２は端子Ｂ、３は端子Ｃ、
４は端子Ｄ、５は同軸線路Ａ、６は内導体Ａ、７
は外導体Ａ、８は同軸線路Ｂ、９は内導体Ｂ、１
０は外導体Ｂ、１１はスタブアングルＡ、１２は
スタブアングルＢ、１３はチヨークＡ、１４はチ
ヨークＢ、１５はチヨークＣ、１６はチヨーク
Ｄ、１７はリングＡ、１８はリングＢ、１９はベ
アリング、２０はスタブアングルＣ、２１はチヨ
ークＥ、２２はチヨークＦである。なお図中、同
一あるいは相当部分には同一符号を付して示して
ある。
FIG. 1 is a sectional view of a conventional two-channel rotary joint, FIG. 2 is a sectional view of a yoke provided on the inner conductor of a coaxial line, and FIG. 3 is a sectional view of a yoke provided on the outer conductor of a coaxial line. Fig. 4 is a sectional view of a stub angle in which the inner conductor and outer conductor are fixed, Fig. 5 is a sectional view of a stub angle in which the inner conductor and outer conductor are rotatable, and Fig. 6 is an embodiment of the present invention. FIG. 2 is a cross-sectional view of a two-channel rotary joint. In the figure, 1 is terminal A, 2 is terminal B, 3 is terminal C,
4 is terminal D, 5 is coaxial line A, 6 is inner conductor A, 7
is outer conductor A, 8 is coaxial line B, 9 is inner conductor B, 1
0 is outer conductor B, 11 is stub angle A, 12 is stub angle B, 13 is yoke A, 14 is yoke B, 15 is yoke C, 16 is yoke D, 17 is ring A, 18 is ring B, 19 is 20 is a stub angle C, 21 is a yoke E, and 22 is a yoke F. In the drawings, the same or corresponding parts are designated by the same reference numerals.
Claims (1)
軸線路と、上記多重同軸線路の中心に配置される
同軸線路を除く同軸線路に一つの直交分岐路と二
つの共軸分岐路とを有するＴ字形分岐路を接続す
るとともに上記一方の共軸分岐路を短絡して前記
同軸線路を管軸方向と直交する方向に曲げるため
のスタブアングルとを備えた多チヤネルロータリ
ジヨイントにおいて、上記Ｔ字形分岐路の有する
直交分岐路の内導体内にチヨークを設けたことを
特徴とする多チヤネルロータリジヨイント。1. A multiple coaxial line in which a plurality of coaxial lines are arranged on a concentric circle, and a T-shape having one orthogonal branch and two coaxial branches on the coaxial lines other than the coaxial line arranged in the center of the multiple coaxial line. In the multi-channel rotary joint, the T-shaped branch is provided with a stub angle for connecting the branches and shorting the one coaxial branch to bend the coaxial line in a direction perpendicular to the tube axis direction. A multi-channel rotary joint characterized in that a chain yoke is provided in an inner conductor of an orthogonal branch path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1036981A JPS57124901A (en) | 1981-01-27 | 1981-01-27 | Multichannel rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1036981A JPS57124901A (en) | 1981-01-27 | 1981-01-27 | Multichannel rotary joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57124901A JPS57124901A (en) | 1982-08-04 |
| JPS625521B2 true JPS625521B2 (en) | 1987-02-05 |
Family
ID=11748236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1036981A Granted JPS57124901A (en) | 1981-01-27 | 1981-01-27 | Multichannel rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57124901A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2163604B (en) * | 1984-08-22 | 1988-01-20 | Gen Electric Co Plc | Feeds for transmission lines |
| JP5542517B2 (en) * | 2010-04-27 | 2014-07-09 | 三菱電機株式会社 | Multi-channel coaxial rotary joint |
-
1981
- 1981-01-27 JP JP1036981A patent/JPS57124901A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57124901A (en) | 1982-08-04 |
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