JPS6035842B2 - transmission line - Google Patents
transmission lineInfo
- Publication number
- JPS6035842B2 JPS6035842B2 JP12338179A JP12338179A JPS6035842B2 JP S6035842 B2 JPS6035842 B2 JP S6035842B2 JP 12338179 A JP12338179 A JP 12338179A JP 12338179 A JP12338179 A JP 12338179A JP S6035842 B2 JPS6035842 B2 JP S6035842B2
- Authority
- JP
- Japan
- Prior art keywords
- waveguide
- coaxial
- rectangular waveguide
- slit
- input
- 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
- 230000005540 biological transmission Effects 0.000 title description 21
- 239000000523 sample Substances 0.000 claims description 14
- 239000004020 conductor Substances 0.000 description 15
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
- H01P5/103—Hollow-waveguide/coaxial-line transitions
Landscapes
- Waveguide Connection Structure (AREA)
Description
【発明の詳細な説明】
この発明は入出力端間の距離を自由に変えられ、かつ低
伝送損失で、平坦な周波数特性を有する伝送線路に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transmission line that can freely change the distance between input and output ends, has low transmission loss, and has flat frequency characteristics.
従来この種の伝送線路には第１図および第２図に示すも
のが使われていた。Conventionally, this type of transmission line has been used as shown in FIGS. 1 and 2.
第１図に示すものは一般にラインストレツチヤ−と呼ば
れるものであり、同図において、１は可動側の入力端、
２は固定側の出力端である。８は可動側入力端１の外導
体、９は可動側入力端１の内導体であり、両導体８，９
により可動側入力端１の同軸線路を形成する。The one shown in Figure 1 is generally called a line stretcher, and in the figure, 1 is the input end on the movable side;
2 is an output end on the fixed side. 8 is the outer conductor of the movable input end 1, 9 is the inner conductor of the movable input end 1, and both conductors 8, 9
A coaxial line of the movable input end 1 is formed by this.
１０は固定側出力端２の外導体、１１は固定側出力端２
の内導体であり、両導体１０，１１により固定側出力端
２の同軸線路を形成する。10 is the outer conductor of the fixed output end 2, 11 is the fixed output end 2
Both conductors 10 and 11 form a coaxial line at the fixed output end 2.
Ｉ２，１３はそれぞれ同軸線路の内導体９，１ １を外
導体８，１０の中心に保持するための誘電体からなるサ
ポートである。次に作用について説明する。I2 and 13 are supports made of dielectric material for holding the inner conductors 9 and 11 of the coaxial line at the center of the outer conductors 8 and 10, respectively. Next, the effect will be explained.
可動側同軸線路の外導体８の先端は固定側同軸線路のの
外導体１０の内面を、可動側同軸線路の内導体９は固定
側同軸線路の内導体１１の先端内面を摺動しながら同時
に動く。従って、入出力端１，２間の距離を自由に変え
ることができ、入力端１に加えた電磁波は出力端２に出
力される。このような構造の伝送線路では、内導体９，
１１を外導体８，１０の中心に正しく保持するための両
サポート１２，１３間の間隔をむやみに大きくとること
はできず、その間隔長は制限をうける。The tip of the outer conductor 8 of the movable coaxial line slides on the inner surface of the outer conductor 10 of the fixed coaxial line, and the inner conductor 9 of the movable coaxial line slides on the inner surface of the tip of the inner conductor 11 of the fixed coaxial line. Move. Therefore, the distance between the input and output terminals 1 and 2 can be freely changed, and the electromagnetic waves applied to the input terminal 1 are outputted to the output terminal 2. In a transmission line with such a structure, the inner conductor 9,
The distance between the supports 12 and 13 for correctly holding the support 11 at the center of the outer conductors 8 and 10 cannot be unnecessarily large, and the length of the distance is limited.
従って、可動側同軸線路の可動範囲は上記サポートの間
隔によって制限を受ける。Ｘバンドの周波数帯で使用可
能なこの種の同軸線路の径は６柳程度であり、両サポー
ト１２，１３の間隔はせし、ぜし、数十弧であるので可
動範囲もこの程度までである。第２図は可とう性のある
同軸ケーブルを利用したものである。Therefore, the movable range of the movable coaxial line is limited by the spacing between the supports. The diameter of this type of coaxial line that can be used in the X-band frequency band is about 600 mm, and the distance between the supports 12 and 13 is several tens of arcs, so the range of movement is limited to this range. be. Figure 2 shows an example using a flexible coaxial cable.
１は移動側の入力機、２は固定側の出力端であり、１４
は可とう性のある同軸ケーブルである。1 is the input device on the moving side, 2 is the output end on the fixed side, and 14
is a flexible coaxial cable.
入力端１は同図上で左右に移動し、入出力端１，２間の
距離はほぼ同軸ケーブル１４の長さ分だけ変えることが
できる。しかしながら、×バンド帯以上の高い周波数帯
になると、長時間にわたる多くの曲げ回数に対しても十
分信頼性のある同軸ケーブルは現状では皆無といっても
よい。現在可とう性のある同軸ケーブルとして市販され
ている直径１′４インチ可とう同軸ケーブルの代表的な
伝送損失は×バンドにおいて、例えば周波数的世〜１本
日ｚで使用する場合、１２ｄＢ／ｌ０ｗ〜１＆旧／１０
肌であり、Ｘ旧／ｌｏｗの伝送損失の周波数特性を持つ
。従って、入出力端間を１０の以上可変できるようにす
ると伝送損失は増々増加し、その周波数特性も増々悪く
なってくる。この発明は以上のような従来のものの欠点
を除去するためになされたもので、矩形導波管に結合さ
せた同軸プローブと上記矩形導波管内に設けた短絡板と
を使用周波数帯の中心波長の約１′４の距離を保ちなが
ら導波管の軸方向に沿って連動させることにより、入出
力端間の距離の可動範囲が大きく、かつ伝速損失が小さ
く、その周波数特性が平坦な伝送線路を提供することを
目的としている。以下、この発明の一実施例を図につい
て説明する。The input end 1 can be moved left and right in the figure, and the distance between the input and output ends 1 and 2 can be changed by approximately the length of the coaxial cable 14. However, when it comes to high frequency bands above the x band, it can be said that there are currently no coaxial cables that are sufficiently reliable to withstand many bends over a long period of time. Typical transmission loss of a 1'4 inch diameter flexible coaxial cable, which is currently commercially available as a flexible coaxial cable, is 12 dB/l0w in the x band, for example, when used at a frequency of ~1 today z. 1&old/10
It has a frequency characteristic of transmission loss of X old/low. Therefore, if the input and output terminals can be varied by more than 10, the transmission loss will increase and the frequency characteristics will become increasingly worse. This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and it uses a coaxial probe coupled to a rectangular waveguide and a shorting plate provided in the rectangular waveguide to adjust the center wavelength of the frequency band used. By interlocking the waveguide along the axial direction while maintaining a distance of approximately 1'4, the movable range of the distance between the input and output ends is wide, transmission loss is small, and the frequency characteristics are flat. The purpose is to provide a railway line. An embodiment of the present invention will be described below with reference to the drawings.
第３図において、１１ま入力端、２は出力端、３はスリ
ット導波管であり、矩形導波管３のＨ面の中央に鞠方向
に沿ってスリット３ａが設けられている。４は同軸プロ
ーブであり、その一端は入力端１に接続され、他騰の内
導体４ａが上記スリット導波管３のスリット３ａをとお
って該スリット導波管３内に挿入されている。In FIG. 3, 11 is an input end, 2 is an output end, and 3 is a slit waveguide, in which a slit 3a is provided in the center of the H plane of the rectangular waveguide 3 along the mari direction. Reference numeral 4 designates a coaxial probe, one end of which is connected to the input end 1, and an inner conductor 4a of the other end is inserted into the slit waveguide 3 through the slit 3a of the slit waveguide 3.
５は短絡板であり、そのフィンガ５ａが導波管３の内壁
面と接触して導波管３内の電磁波を短絡するものである
。Reference numeral 5 denotes a short circuit plate whose fingers 5a come into contact with the inner wall surface of the waveguide 3 to short-circuit the electromagnetic waves within the waveguide 3.
６は導波管３の藤方向に沿って移動自在に設けられた可
動体であり、上記同軸プローブ４を取付けているととも
に、短絡板５がこれと一体に形成されており、同軸プロ
ーブ４と短絡板５とを所定の間隔に保持している。A movable body 6 is provided so as to be movable along the vertical direction of the waveguide 3, to which the coaxial probe 4 is attached, and a shorting plate 5 is integrally formed therewith. The short circuit plate 5 is maintained at a predetermined interval.
次に動作について説明する。Next, the operation will be explained.
上述の如く、プローブ４短絡板５は可動体６で連結され
ているので、可動体６を移動することによって、両者を
所定の距離を保ちながらスリット導波管３の軸万向に移
動することができる。その結果、同軸プローブ４に接続
された入力端１と矩形導波管３の一端の出力端２との距
離を自由に変えることができる。入力端１に給電された
電磁波は、スリット導波管３内に挿入された同軸プロー
プ４の内導体４ａによってスリット導波管３に結合され
、該スリット導波管３の鞠方向に位置する出力端２側と
短絡板５側の双方に伝送されるが、短絡板５側に伝送さ
れた電磁波は短絡板５で反射されるので、出力端２側に
伝送されることになる。As mentioned above, the probe 4 and shorting plate 5 are connected by the movable body 6, so by moving the movable body 6, both can be moved in all directions along the axis of the slit waveguide 3 while maintaining a predetermined distance between them. Can be done. As a result, the distance between the input end 1 connected to the coaxial probe 4 and the output end 2 at one end of the rectangular waveguide 3 can be freely changed. The electromagnetic waves fed to the input end 1 are coupled to the slit waveguide 3 by the inner conductor 4a of the coaxial probe 4 inserted into the slit waveguide 3, and an output located in the direction of the slit waveguide 3 is generated. The electromagnetic waves are transmitted to both the end 2 side and the shorting plate 5 side, but since the electromagnetic waves transmitted to the shorting plate 5 side are reflected by the shorting plate 5, they are transmitted to the output end 2 side.
上記同軸ブローブ４と短絡板５との距離を使用周波数帯
の中心波長の約１／４に選択することにより、直接出力
端２側に伝送される電磁波と、短絡板５で反射され、出
力端２側に伝送される電磁波との位相を合わせることが
でき、反射損失がほとんどなく、入力端１側に給電され
た電磁波は出力端２側に伝送される。これは一般に知ら
れている同軸導波管変換器と同じ動作である。By selecting the distance between the coaxial probe 4 and the shorting plate 5 to be about 1/4 of the center wavelength of the frequency band used, the electromagnetic waves directly transmitted to the output end 2 side and the electromagnetic waves reflected by the shorting plate 5, The phase of the electromagnetic waves transmitted to the second side can be matched, there is almost no reflection loss, and the electromagnetic waves fed to the input end 1 side are transmitted to the output end 2 side. This is the same operation as commonly known coaxial waveguide transducers.
同軸導波管の伝送損失は使用周波数帯を例えばＸバンド
内の周波数斑比〜１本比とすれば反射損失のみと考える
ことができ、ほとんど無視できる。The transmission loss of the coaxial waveguide can be considered to be only the reflection loss and can be almost ignored if the frequency band used is, for example, the frequency unevenness ratio to one frequency ratio in the X band.
従って、本伝送線路の損失は導波管の管壁の抵抗損のみ
となる。Therefore, the loss of this transmission line is only the resistance loss of the waveguide wall.
この損失は、スリット導波管３にＪＩＳ規格のＷＲＪ−
１０を用い、×バンドの周波数帯的Ｈｚ〜１本位で使用
した場合、１．＄Ｂ／１０ｍ〜１．２ｄＢ／ｌｏｗであ
り、０．班Ｂ／１０肌の伝送損失の周波数特性である。
従って、本発明による伝送線路は第１図に示すものに比
し、入、出力様間の距離を大きく変えることができる。This loss is caused by the JIS standard WRJ-
10 and when used in the × band frequency band Hz ~ 1 frequency band, 1. $B/10m~1.2dB/low, 0. It is a frequency characteristic of transmission loss of group B/10 skin.
Therefore, the transmission line according to the present invention allows the distance between the input and output sides to be changed significantly compared to the transmission line shown in FIG.
さらに、第２図に示すものに比し伝送損失はかるかに小
さく、またその周波数特性もはるかに平坦である。なお
、上記実施例では、同軸プローブを入力機、スリット導
波管の一端を出力端としているが、入、出力端は反対と
してもよい。Furthermore, the transmission loss is much smaller than that shown in FIG. 2, and its frequency characteristics are also much flatter. In the above embodiment, the coaxial probe is used as the input device, and one end of the slit waveguide is used as the output end, but the input and output ends may be reversed.
また、スリット導波管の代わりにスリット同軸管を用い
てもよいが、この場合前者に比し伝送損失は増加する。
以上のように、この発明によれば、矩形導波管に電界結
合させた同軸プローブと矩形導波賀内に設けた短絡板と
を、可動体により使用周波数帯の中心波長の約１／４の
距離を保ちながら矩形導波管に沿って移動させることに
より、伝送損失が小さく、かつその周波数特性が平坦な
伝送線路を得ることができる効果がある。Further, a slit coaxial tube may be used instead of the slit waveguide, but in this case, transmission loss increases compared to the former.
As described above, according to the present invention, the coaxial probe electrically coupled to the rectangular waveguide and the shorting plate provided in the rectangular waveguide are connected by the movable body to approximately 1/4 of the center wavelength of the frequency band used. By moving the waveguide along the rectangular waveguide while maintaining the distance, it is possible to obtain a transmission line with low transmission loss and flat frequency characteristics.
第１図は従来の伝送線路の一部断面正面図、第２図は従
来の他の伝送線路の正面図、第３図ａ，ｂはこの発明の
一実施例による伝送線路の断面側面図および断面正面図
である。
１・・・・・・入力端、２…・・・出力端、３…・・・
矩形導波管、３ａ・・・・・・スリット、４・・…・同
軸プローブ、５・…・・短絡板、６・・・・・・可動体
。
なお図中、同一符号は同一又は相当部分を示す。第１図
第２図
第３図FIG. 1 is a partially sectional front view of a conventional transmission line, FIG. 2 is a front view of another conventional transmission line, and FIGS. 3a and 3b are sectional side views of a transmission line according to an embodiment of the present invention. It is a cross-sectional front view. 1...Input end, 2...Output end, 3...
Rectangular waveguide, 3a... slit, 4... coaxial probe, 5... shorting plate, 6... movable body. In the figures, the same reference numerals indicate the same or corresponding parts. Figure 1 Figure 2 Figure 3
Claims (1)
導波管と、上記スリツトを介して上記矩形導波管に結合
された同軸プローブと、上記矩形導波管内に上記同軸プ
ローブと使用周波数帯の中心波長の約１／４の距離を置
いて設けられた短絡板と、上記同軸プローブと上記短絡
板とを保持し上記矩形導波管の軸方向に沿つて移動自在
に設けられた可動体とを備え、上記同軸プローブの一端
を入力端または出力端とし、上記矩形導波管の一端を出
力端または入力端としたことを特徴とする伝送線路。1. A rectangular waveguide with a slit along the axial direction in the center of the H plane, a coaxial probe coupled to the rectangular waveguide through the slit, and a coaxial probe inside the rectangular waveguide. A shorting plate is provided at a distance of about 1/4 of the center wavelength of the frequency band, and a shorting plate is provided to hold the coaxial probe and the shorting plate and to be movable along the axial direction of the rectangular waveguide. a movable body, wherein one end of the coaxial probe is an input end or an output end, and one end of the rectangular waveguide is an output end or an input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12338179A JPS6035842B2 (en) | 1979-09-25 | 1979-09-25 | transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12338179A JPS6035842B2 (en) | 1979-09-25 | 1979-09-25 | transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5647102A JPS5647102A (en) | 1981-04-28 |
| JPS6035842B2 true JPS6035842B2 (en) | 1985-08-16 |
Family
ID=14859165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12338179A Expired JPS6035842B2 (en) | 1979-09-25 | 1979-09-25 | transmission line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6035842B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0232555U (en) * | 1988-08-23 | 1990-02-28 | ||
| JPH0524764Y2 (en) * | 1986-10-17 | 1993-06-23 | ||
| JPH0774544B2 (en) * | 1986-06-17 | 1995-08-09 | 清水建設株式会社 | Large floor beam formwork equipment |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837201U (en) * | 1981-09-03 | 1983-03-10 | 三菱電機株式会社 | short circuit |
| US5977851A (en) * | 1997-11-13 | 1999-11-02 | Carnegie Mellon University | Wireless signal distribution in a building HVAC system |
| US5994984A (en) * | 1997-11-13 | 1999-11-30 | Carnegie Mellon University | Wireless signal distribution in a building HVAC system |
| KR101605574B1 (en) | 2008-03-27 | 2016-03-22 | 프레스라인 서비스 인코포레이티드 | Printing press, folder and methods of operation |
-
1979
- 1979-09-25 JP JP12338179A patent/JPS6035842B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0774544B2 (en) * | 1986-06-17 | 1995-08-09 | 清水建設株式会社 | Large floor beam formwork equipment |
| JPH0524764Y2 (en) * | 1986-10-17 | 1993-06-23 | ||
| JPH0232555U (en) * | 1988-08-23 | 1990-02-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5647102A (en) | 1981-04-28 |
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