JPS6239841B2 - - Google Patents
Info
- Publication number
- JPS6239841B2 JPS6239841B2 JP5277381A JP5277381A JPS6239841B2 JP S6239841 B2 JPS6239841 B2 JP S6239841B2 JP 5277381 A JP5277381 A JP 5277381A JP 5277381 A JP5277381 A JP 5277381A JP S6239841 B2 JPS6239841 B2 JP S6239841B2
- Authority
- JP
- Japan
- Prior art keywords
- coaxial line
- line
- coaxial
- stub
- 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
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 eliminates electrical discontinuity by providing a cable in the transmission line.
One transmission path can be freely rotated in the circumferential direction.
また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 multichannel rotary joint is used.
第１図に異なる寸法から成る複数個の同軸線路
を同心円上に配置し、かつ内側に配置した前記同
軸線路の外導体外壁をその外側に配置した同軸線
路の内導体外壁として用いる多重同軸線路を用い
た従来の３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、
５，６はチヤネルＣの端子Ｅ、端子Ｆ、７はチヤ
ネルＡの波が伝搬する同軸線路Ａ、８はチヤネル
Ｂの波が伝搬する同軸線路Ｂ、９はチヤネルＣの
波が伝搬する同軸線路Ｃ、１０は、同軸線Ｂ８と
端子Ｃ３，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、１１は、同軸
線路Ｃ９と端子Ｅ５、同軸線路Ｃ９と端子Ｆ６と
をそれぞれ接続するためのスタブアングルＢ、１
２は、同軸線路Ａ７、同軸線路Ｂ８、同軸線路Ｃ
９の各伝送路に対して機械的には、切り離してい
るが、電気的には連続な特性を呈するチヨークで
ある。 Figure 1 shows a multiplex coaxial line in which a plurality of coaxial lines having different dimensions are arranged on a concentric circle, and the outer conductor wall of the coaxial line placed inside is used as the inner conductor outer wall of the coaxial line placed outside. A cross-sectional view of the conventional 3-channel rotary joint used is shown. 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 and 6 are terminal E and terminal F of channel C, 7 is coaxial line A where the waves of channel A propagate, 8 is coaxial line B where the waves of channel B are propagated, and 9 is the coaxial line where the waves of channel C are propagated. C, 10 are stub angles A for connecting coaxial line B8 and terminal C3, coaxial line B8 and terminal D4, respectively; 11 are stub angles A for connecting coaxial line C9 and terminal E5, and coaxial line C9 and terminal F6, respectively. Stub angle B, 1 for
2 are coaxial line A7, coaxial line B8, and coaxial line C.
Although mechanically separated from each of the transmission lines 9, the chain exhibits electrically continuous characteristics.
なお、図中に特に示していないが、ロータリジ
ヨイントはチヨークを介して対向する伝送路を支
持し、かつ、一方の伝送路を回転させることので
きるベアリング機構を有している。 Although not particularly shown in the drawings, the rotary joint has a bearing mechanism that supports opposing transmission lines via a chain yoke and can rotate one of the transmission lines.
次に従来のロータリジヨイントの説明に必要な
スタブアングルの動作原理について、以下に説明
する。 Next, the operating principle of the stub angle, which is necessary to explain the conventional rotary joint, will be explained below.
第２図は、同軸線路のスタブブアングルの断面
図である。 FIG. 2 is a cross-sectional view of a stub angle of a coaxial line.
図中、１３，１４，１５は、それぞれ同軸線路
ア、同軸線路イ、同軸線路ウであり、同軸線路イ
１４の軸長をL1とする。 In the figure, 13, 14, and 15 are coaxial line A, coaxial line B, and coaxial line C, respectively, and the axial length of coaxial line A is L1 .
スタブアングルは、主伝送路を直角に曲げるた
めＴ字形分岐路の一方の共軸分岐路と直交分岐路
とを主伝送路とし、他方の共軸分岐路を副伝送路
とすると、副伝送路の先端を短絡し、かつ電気長
が90度となるように軸長を調整したものである。
いま、同軸線路ア１３と同軸線路ウ１５を主伝送
路、同軸線路イ１４を副伝送路とし、同軸線路イ
１４の一端を短絡、かつ同軸線路イ１４の軸長
L1を約４分の１波長とすれば、同軸線路イ１４
の他端は電気的に開放となる。このため、同軸線
路イ１４は、主伝送路に対して電気的影響を及ぼ
さない。 In order to bend the main transmission line at right angles, the stub angle is defined as the sub-transmission line when one coaxial branch line and orthogonal branch line of a T-shaped branch line are used as the main transmission line, and the other coaxial branch line is used as the sub-transmission line. The tips of the two are short-circuited, and the axial length is adjusted so that the electrical length is 90 degrees.
Now, coaxial line A 13 and coaxial line C 15 are used as the main transmission line, coaxial line A 14 is used as the sub transmission line, one end of coaxial line A 14 is short-circuited, and the axial length of coaxial line A 14 is
If L 1 is approximately 1/4 wavelength, the coaxial line I14
The other end is electrically open. Therefore, the coaxial line 14 has no electrical influence on the main transmission line.
従来の多チヤネルロータリジヨイントは、主伝
送路と入出力端子とを接続するためスタブアング
ルを用いており、各チヤネルのスタブアングル
は、管軸上で互いに重なることなく縦続して接続
していた。このため、従来の多チヤネルロータリ
ジヨイントは、チヤネル数が多くなると管軸長が
長くなる欠点を有していた。 Conventional multi-channel rotary joints use stub angles to connect the main transmission line and input/output terminals, and the stub angles of each channel are connected in cascade without overlapping each other on the tube axis. . For this reason, the conventional multi-channel rotary joint has the disadvantage that the tube axis length increases as the number of channels increases.
この発明は、この欠点を除去するため、外側の
伝送路に設けたスタブ内に内側の伝送路のスタブ
アングル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 stub angle for the inner transmission line within the stub provided for the outer transmission line, and will be described in detail below with reference to the drawings.
第３図にこの発明の実施例の断面図を示す。 FIG. 3 shows a sectional view of an embodiment of the invention.
図中、１〜１２は第１図に示すものと同一であ
り、１６は同軸線路Ｃ９に設けたスタブである。 In the figure, 1 to 12 are the same as those shown in FIG. 1, and 16 is a stub provided on the coaxial line C9.
スタブアングルＡ１０は、前記スタブ１６の内
導体内に設けられている。 A stub angle A10 is provided within the inner conductor of the stub 16.
第４図に、この発明の説明に用いる同軸線路の
スタブの断面図を示す。図中、１７，１８，１９
は同軸線路エ、同軸線路オ、同軸線路カであり、
同軸線路カ１９の軸長をL2とする。スタブは、
Ｔ字形分岐路の２つの共軸分岐路を主伝送路、直
交分岐路を副伝送路とし、副伝送路の一端を短
絡、かつ電気長を90度としたものであり、従来、
同軸線路の内導体を支持するために用いられてい
る。 FIG. 4 shows a sectional view of a stub of a coaxial line used for explaining the present invention. In the figure, 17, 18, 19
are coaxial line E, coaxial line O, and coaxial line F,
Let the axial length of the coaxial line 19 be L2 . The stub is
The two coaxial branches of the T-shaped branch are the main transmission line, the orthogonal branch is the sub-transmission line, one end of the sub-transmission line is short-circuited, and the electrical length is 90 degrees.
It is used to support the inner conductor of coaxial lines.
いま、同軸線路エ１７、同軸線路オ１８を主伝
送路、同軸線路カ１９を副伝送路とし、同軸線路
カ１９の一端を短絡し、かつ、同軸線路カ１９の
軸長L2をを約４分の１波長とすれば、同軸線路
カ１９の他端は電気的に開放となる。したがつて
同軸線路カ１９は、主伝送路に電気的に影響を及
ぼさない。 Now, coaxial line E 17 and coaxial line O 18 are used as the main transmission line, coaxial line F 19 is used as the sub transmission line, one end of coaxial line F 19 is short-circuited, and the axial length L 2 of coaxial line F 19 is set to approximately If the wavelength is 1/4, the other end of the coaxial line 19 will be electrically open. Therefore, the coaxial line 19 does not electrically affect the main transmission line.
このスタブ１６を同軸線路Ｃ９に設けると、ス
タブ１６の内導体内に同軸線路Ｂ８に接続するス
タブアングルＡ１０を設けることが可能となる。
したがつて、この発明による多チヤネルロータリ
ジヨイントでは、異なる同軸線路にそれぞれ接続
するスタブアングルを縦続接続することなく配置
ができるため、軸長の短い多チヤネルロータリジ
ヨイントを得ることができる利点がある。 When this stub 16 is provided on the coaxial line C9, it becomes possible to provide a stub angle A10 connected to the coaxial line B8 within the inner conductor of the stub 16.
Therefore, in the multi-channel rotary joint according to the present invention, the stub angles connected to different coaxial lines can be arranged without cascading, so there is an advantage that a multi-channel rotary joint with a short axial length can be obtained. be.
なお、以上は、３チヤネルロータリジヨイント
について説明したが、この発明は、これに限らず
４チヤネル以上の多チヤネルロータリジヨイント
に用いてもよい。また、同一同軸線路内に設ける
スタブアングルとスタブとの相対位置は任意でよ
い。 Although the above description has been made regarding a three-channel rotary joint, the present invention is not limited to this, and may be applied to a multi-channel rotary joint having four or more channels. Further, the relative positions of the stub angle and the stub provided within the same coaxial line may be arbitrary.
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、外側の同軸線路に設けたス
タブ内に内側の同軸線路と接続するスタブアング
ルを設けることにより、管軸長の短い多チヤネル
ロータリジヨイントを得ることができる利点があ
る。 As described above, in the multi-channel rotary joint according to the present invention, by providing a stub angle connected to the inner coaxial line in the stub provided on the outer coaxial line, the multi-channel rotary joint with a short tube axis length can be realized. There is an advantage that you can get
第１図は従来の３チヤネルロータリジヨイント
の断面図、第２図は同軸線路のスタブアングルの
断面図、第３図はこの発明の一実施例の３チヤネ
ルロータリジヨイントの断面図、第４図は同軸線
路のスタブの断面図である。
図中、１は端子Ａ、２は端子Ｂ、３は端子Ｃ、
４は端子Ｄ、５は端子Ｅ、６は端子Ｆ、７は同軸
線路Ａ、８は同軸線路Ｂ、９は同軸線路Ｃ、１０
はスタブアングルＡ、１１はスタブアングルＢ、
１２はチヨーク、１３は同軸線路ア、１４は同軸
線路イ、１５は同軸線路ウ、１６はスタブ、１７
は同軸線路エ、１８は同軸線路オ、１９は同軸線
路カである。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 3-channel rotary joint, FIG. 2 is a sectional view of a stub angle of a coaxial line, FIG. 3 is a sectional view of a 3-channel rotary joint according to an embodiment of the present invention, and FIG. The figure is a cross-sectional view of a stub of a coaxial line. In the figure, 1 is terminal A, 2 is terminal B, 3 is terminal C,
4 is terminal D, 5 is terminal E, 6 is terminal F, 7 is coaxial line A, 8 is coaxial line B, 9 is coaxial line C, 10
is stub angle A, 11 is stub angle B,
12 is a chi yoke, 13 is a coaxial line A, 14 is a coaxial line A, 15 is a coaxial line U, 16 is a stub, 17
18 is a coaxial line O, and 19 is a coaxial line F. In the drawings, the same or corresponding parts are denoted by the same reference numerals.
Claims (1)
円上に配置し、かつ内側に配置した前記同軸線路
の外導体外壁をその外側に配置した同軸線路の内
導体外壁として用いる多重同軸線路に設けられた
チヨークと、上記外側の同軸線路に直交し、か
つ、上記外側の同軸線路のうち上記内側の同軸線
路が横切る箇所に設けられたスタブと、このスタ
ブの内導体中に設けられ、上記外側の同軸線路よ
り内側に配置された同軸線路に接続される入出力
線とを備え、前記多重同軸線路の中心に配置され
る同軸線路を除く複数個の同軸線路を、管軸方向
と直交し、かつ互いに異なる方向に曲げるように
し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 multiplex coaxial line in which a plurality of coaxial lines of different dimensions are arranged on a concentric circle, and the outer conductor wall of the coaxial line placed on the inside is used as the inner conductor outer wall of the coaxial line placed on the outside. a stub provided in the inner conductor of this stub, perpendicular to the outer coaxial line and at a location where the inner coaxial line crosses the outer coaxial line; and an input/output line connected to a coaxial line placed inside the line, and a plurality of coaxial lines other than the coaxial line placed at the center of the multiplex coaxial line are arranged perpendicularly to the tube axis direction and mutually. A multi-channel rotary joint characterized by bending in different directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5277381A JPS57168501A (en) | 1981-04-08 | 1981-04-08 | Multichannel rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5277381A JPS57168501A (en) | 1981-04-08 | 1981-04-08 | Multichannel rotary joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57168501A JPS57168501A (en) | 1982-10-16 |
| JPS6239841B2 true JPS6239841B2 (en) | 1987-08-25 |
Family
ID=12924178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5277381A Granted JPS57168501A (en) | 1981-04-08 | 1981-04-08 | Multichannel rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57168501A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62278467A (en) * | 1986-05-28 | 1987-12-03 | Railway Technical Res Inst | Rapture detector for rail top |
| JP2005523597A (en) * | 2002-04-17 | 2005-08-04 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Waveguide communication system |
| JP5542517B2 (en) * | 2010-04-27 | 2014-07-09 | 三菱電機株式会社 | Multi-channel coaxial rotary joint |
-
1981
- 1981-04-08 JP JP5277381A patent/JPS57168501A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57168501A (en) | 1982-10-16 |
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