JPS6239855B2 - - Google Patents
Info
- Publication number
- JPS6239855B2 JPS6239855B2 JP55149134A JP14913480A JPS6239855B2 JP S6239855 B2 JPS6239855 B2 JP S6239855B2 JP 55149134 A JP55149134 A JP 55149134A JP 14913480 A JP14913480 A JP 14913480A JP S6239855 B2 JPS6239855 B2 JP S6239855B2
- Authority
- JP
- Japan
- Prior art keywords
- spiral
- helical
- waveguide
- conductors
- electric field
- 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 19
- 230000001939 inductive effect Effects 0.000 claims description 9
- 230000005684 electric field Effects 0.000 description 10
- 230000005284 excitation Effects 0.000 description 10
- 230000005672 electromagnetic field Effects 0.000 description 7
- 238000000576 coating method Methods 0.000 description 4
- 239000011162 core material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
- Communication Cables (AREA)
- Waveguide Aerials (AREA)
Description
【発明の詳細な説明】
本発明は、道路や線路に沿つて布設されて自動
車や電車等の移動体との間で誘導無線通信を行う
ための誘導通信用螺旋型導波線路に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spiral waveguide line for inductive communication, which is laid along roads and railways to perform inductive wireless communication with moving objects such as automobiles and trains. .
従来の誘導通信用螺旋型導波線路としては(A)１
条の螺旋導体を用いるもの、(B)２条の螺旋導体を
同軸状に組合せたものを用いるものがある。この
ような線路は、いずれも螺旋導体によつて周方向
電界を発生させ、移動体のアンテナと結合させ通
信を行わせるようになつている。しかしながら、
前者(A)の螺旋型導波線路では励振が難しく、周囲
の影響を受け易く、且つ結合電界を大きくしにく
い等の欠点がある。一方、後者(B)の螺旋型導波線
路では、不平衡線路であつて軸方向電界成分につ
いて外部と結合し易い欠点がある。 As a conventional spiral waveguide for inductive communication, (A)1
There are those that use a single spiral conductor, and (B) those that use a coaxial combination of two spiral conductors. All of these lines are designed to generate a circumferential electric field using a spiral conductor, which is coupled to an antenna of a moving body to perform communication. however,
The former (A) spiral waveguide has drawbacks such as being difficult to excite, being easily influenced by the surroundings, and being difficult to increase the coupling electric field. On the other hand, the latter (B) spiral waveguide line is an unbalanced line and has the disadvantage that the axial electric field component is easily coupled to the outside.
本発明は上記の如き従来の諸欠点を改善できる
誘導通信用螺旋型導波線路を提案したもので、以
下図面に示した実施例により詳細に説明する。 The present invention proposes a spiral waveguide for inductive communication that can improve the various drawbacks of the conventional art as described above, and will be described in detail below with reference to embodiments shown in the drawings.
第１図及び第２図は本発明の第１実施例を示し
たものである。本実施例の誘導通信用螺旋型導波
線路は、第１図に示すように螺旋の回転方向が互
に逆になつた螺旋導体１１，１２を主体とした１
対の螺旋ケーブル２１，２２を第２図に示すよう
に互に撚り合せ、その外周に外部絶縁被覆３を設
けて成つている。各螺旋ケーブル２１，２２はそ
れぞれの螺旋導体１１，１２の形状を維持させる
ため第２図に示すように絶縁材よりなる芯材４
１，４２を用い、その外周に螺旋導体１１，１２
を巻付け、また螺旋導体１１，１２の相互間の絶
縁を図るために各螺旋導体１１，１２の外周には
内部絶縁被覆５１，５２を設けている。 1 and 2 show a first embodiment of the present invention. The helical waveguide line for inductive communication of this embodiment consists of helical conductors 1 1 and 1 2 whose spiral rotation directions are opposite to each other, as shown in FIG.
A pair of helical cables 2 1 and 2 2 are twisted together as shown in FIG. 2, and an outer insulating coating 3 is provided around the outer periphery. Each helical cable 2 1 , 2 2 has a core material 4 made of an insulating material, as shown in FIG .
1 , 4 2 and spiral conductors 1 1 , 1 2 on the outer periphery.
In order to insulate the spiral conductors 1 1 and 1 2 from each other, internal insulating coatings 5 1 and 5 2 are provided around the outer periphery of each spiral conductor 1 1 and 1 2 .
このような誘導通信用螺旋型導波線路は、対に
なつた螺旋導体１１，１２間に信号電圧を印加し
て平衡給電し、末端側には終端抵抗をつないで使
用する。 Such a spiral waveguide for inductive communication is used by applying a signal voltage between the pair of spiral conductors 1 1 and 1 2 to provide balanced power supply, and by connecting a terminating resistor to the terminal end.
かゝる構造の螺旋型導波線路は、螺旋導体１
１，１２の相互間隔Ｄと、この導波線路と受信点
との間隔Ｌとの関係がＬ≫Ｄのとき、受信点にお
ける両螺旋ケーブル２１，２２の合成電界Ｅ〓
は、単独の場合の電界Ｅ〓′の約２倍になる。 A spiral waveguide with such a structure has a spiral conductor 1
When the relationship between the mutual spacing D of 1 and 1 2 and the spacing L between this waveguide and the receiving point is L≫D, the combined electric field E of both helical cables 2 1 and 2 2 at the receiving point is
is approximately twice the electric field E〓' in the case of a single electric field.
それは下記のような理由のためである。第４図
に示すように、回転方向が異なる螺旋導体１１，
１２を平行におき、これら螺旋導体１１，１２に
図示のように平行給電を行うと、電線の方向は
各々第５図Ａに示すように同じ向きに流れるルー
プ電線IR1，IR2と、第５図Ｂに示すように逆向き
に流れる直線電流IS1，IS2とに分解できる。即
ち、ループ電流IR1，IR2は同相励振で、直線電流
IS1，IS2は逆相励振となる。逆相励振による電磁
界成分は撚り合せによる撚架効果により打消さ
れ、同相励振による電磁界成分は加算され、約２
倍になる。 This is for the following reasons. As shown in FIG. 4, spiral conductors 1 1 ,
1 and 2 are placed in parallel, and parallel power is fed to these spiral conductors 1 1 and 1 2 as shown in the figure, the directions of the wires become loop wires IR 1 and IR 2 that flow in the same direction as shown in FIG. 5A, respectively. and linear currents IS 1 and IS 2 flowing in opposite directions as shown in FIG. 5B. In other words, the loop currents IR 1 and IR 2 are in-phase excitation, and are linear currents.
IS 1 and IS 2 have anti-phase excitation. The electromagnetic field component due to out-of-phase excitation is canceled by the twisting effect caused by the twisting, and the electromagnetic field component due to in-phase excitation is added to approximately 2
Double.
また、この時各螺旋ケーブル２１，２２の芯材
４１，４２を磁性材で形成すると、周方向電界が
強まつて更に合成電界を大きくすることができ
る。 Furthermore, if the core members 4 1 and 4 2 of each helical cable 2 1 and 2 2 are made of a magnetic material at this time, the circumferential electric field is strengthened and the combined electric field can be further increased.
第３図は本発明の第２実施例を示したものであ
る。本実施例の誘導通信用螺旋型導波線路は、対
毎に螺旋導体１１，１２，１３，１４の螺旋の回
転方向が互に逆になつている第２図のものと同様
の構造の２対の螺旋ケーブル２１，２２，２３，
２４を撚り合せ、その外周に外部絶縁被覆３を設
けて成つている。なお、４１，４２，４３，４４
は絶縁材又は磁性材よりなる芯材、５１，５２，
５３，５４は内部絶縁被覆である。 FIG. 3 shows a second embodiment of the invention. The helical waveguide line for inductive communication of this embodiment is similar to the one shown in Fig. 2, in which the rotation directions of the helical conductors 1 1 , 1 2 , 1 3 , 1 4 are reversed for each pair. Two pairs of helical cables 2 1 , 2 2 , 2 3 , with the structure of
2 and 4 are twisted together, and an external insulation coating 3 is provided around the outer periphery. In addition, 4 1 , 4 2 , 4 3 , 4 4
are core materials made of insulating material or magnetic material, 5 1 , 5 2 ,
5 3 and 5 4 are internal insulation coatings.
このような導波線路は、第４図に示すように螺
旋の回転方向が同じ螺旋導体同志１１と１３、１
２と１４を結んで平衡給電する。 As shown in FIG. 4, such a waveguide line consists of spiral conductors 1 1 , 1 3 , 1 whose spiral rotation direction is the same.
Connect 2 and 14 for balanced power supply.
このようにすると、この線路より離れた受信点
の電界Ｅ〓は、単独の場合の電界Ｅ〓′の約４倍
になる。 In this way, the electric field E at a receiving point remote from this line will be about four times the electric field E' when the line is alone.
なお、螺旋ケーブルの対数は１対や２対に限定
されるものではなく、必要に応じて更に対数Ｎを
増加させることができる。 Note that the number of pairs of spiral cables is not limited to one or two pairs, and the number of logs N can be further increased as necessary.
以上説明したように本発明に係る誘導通信用螺
旋型導波線路は、螺旋の回転方向が互に逆になつ
た螺旋導体を有する螺旋ケーブルをＮ（Ｎは１以
上の整数）対撚り合せた構造なので、対になつた
螺旋導体に流れる電流の方向は同じ向きに流れる
ループ電流と逆向きに流れる直線電流に分解で
き、ループ電流は同相励振となり、直線電流はが
逆相励振となり、逆相励振による電磁界成分は打
ち消され、同相励振による電磁界成分は加算さ
れ、同相励振による電磁界成分により受信点にお
ける結合電磁界を単独の場合の約整数倍に大きく
することができる。また、対にして平衡線路に励
振を行うので、励振が容易であると共に周囲の影
響を受けにくい利点がある。更に本発明では各螺
旋ケーブルを撚り合せているので、十分な可撓性
を得ることができる。 As explained above, the helical waveguide for inductive communication according to the present invention is made by twisting N (N is an integer of 1 or more) pairs of helical cables having helical conductors in which the directions of rotation of the helices are opposite to each other. Because of the structure, the direction of the current flowing in the paired spiral conductors can be decomposed into a loop current flowing in the same direction and a linear current flowing in the opposite direction.The loop current has in-phase excitation, and the linear current has anti-phase excitation, and The electromagnetic field component due to excitation is canceled, and the electromagnetic field component due to in-phase excitation is added, and the electromagnetic field component due to in-phase excitation can increase the combined electromagnetic field at the receiving point to approximately an integral multiple of that in the case of a single electromagnetic field. Furthermore, since the balanced lines are excited in pairs, there are advantages in that the excitation is easy and that they are not easily influenced by the surroundings. Furthermore, in the present invention, since each spiral cable is twisted together, sufficient flexibility can be obtained.
第１図は本発明の螺旋型導波線路で用いる螺旋
ケーブルの撚り合せ前の状態の斜視図、第２図は
本発明に係る螺旋型導波線路の一実施例の端部を
段剥ぎした状態の斜視図、第３図は本発明に係る
螺旋型導波線路の他の実施例の端部を段剥ぎした
状態の斜視図、第４図は第３図に示す線路の給電
状態を示す説明図、第５図は１対の螺旋導体に流
れる電流の向きを示す説明図、第６図Ａ，Ｂは１
対の螺旋導体に流れる電流をそれぞれ２つの成分
に分解した状態の説明図である。
１１〜１４……螺旋導体、２１〜２４……螺旋
ケーブル、４１〜４４……芯材、５１〜５４……
内部シース。
Fig. 1 is a perspective view of a helical cable used in the helical waveguide of the present invention before being twisted, and Fig. 2 is a perspective view of an embodiment of the helical waveguide of the present invention with the end portions stripped. FIG. 3 is a perspective view of another embodiment of the helical waveguide according to the present invention, with the end section removed, and FIG. 4 shows the power supply state of the line shown in FIG. 3. Explanatory diagram, Figure 5 is an explanatory diagram showing the direction of current flowing through a pair of spiral conductors, Figure 6 A and B are 1
FIG. 3 is an explanatory diagram of a state in which the current flowing through a pair of spiral conductors is decomposed into two components, respectively. 1 1 to 1 4 ... spiral conductor, 2 1 to 2 4 ... spiral cable, 4 1 to 4 4 ... core material, 5 1 to 5 4 ...
inner sheath.
Claims (1)
導体を有する螺旋ケーブルをＮ（Ｎは１以上の整
数）対撚り合せて成る誘導通信用螺旋型導波線
路。A spiral waveguide line for inductive communication consisting of N (N is an integer of 1 or more) pairs of spiral cables each having a spiral conductor in which the direction of rotation of the spiral is reversed for each pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55149134A JPS5773535A (en) | 1980-10-24 | 1980-10-24 | Spiral type waveguide for inductive communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55149134A JPS5773535A (en) | 1980-10-24 | 1980-10-24 | Spiral type waveguide for inductive communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5773535A JPS5773535A (en) | 1982-05-08 |
| JPS6239855B2 true JPS6239855B2 (en) | 1987-08-25 |
Family
ID=15468478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55149134A Granted JPS5773535A (en) | 1980-10-24 | 1980-10-24 | Spiral type waveguide for inductive communication |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5773535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0536511Y2 (en) * | 1987-05-29 | 1993-09-16 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8653925B2 (en) * | 2011-03-03 | 2014-02-18 | Lifewave, Inc. | Double helix conductor |
| US8749333B2 (en) * | 2012-04-26 | 2014-06-10 | Lifewave, Inc. | System configuration using a double helix conductor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4816741B1 (en) * | 1967-10-25 | 1973-05-24 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS532505Y2 (en) * | 1971-07-03 | 1978-01-23 |
-
1980
- 1980-10-24 JP JP55149134A patent/JPS5773535A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4816741B1 (en) * | 1967-10-25 | 1973-05-24 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0536511Y2 (en) * | 1987-05-29 | 1993-09-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5773535A (en) | 1982-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5428187A (en) | Shielded hybrid ribbon cable assembly | |
| JPH0225296B2 (en) | ||
| JP2020516083A (en) | Magnetic transformer with increased bandwidth for high speed data communication | |
| JP2006508589A (en) | Inductive coupler structure for power line transmission | |
| CA2327739A1 (en) | Contrawound helical antenna | |
| EP0288535A4 (en) | Improved signal cable assembly. | |
| HU220816B1 (en) | System with ground symmetric line system and with ground asymmetric line system and a matching circuit arrangement between them | |
| JPS6239855B2 (en) | ||
| JPH0360125B2 (en) | ||
| CA2240768C (en) | Triple core toroidal transformer | |
| US4156173A (en) | Input impedance matching of a bipolar transistor employing a coaxial transformer | |
| GB959017A (en) | Improvements in or relating to devices for use with coaxial lines | |
| JP2000123650A (en) | Electric wire for grounding | |
| JPS6243603B2 (en) | ||
| JPS5836095Y2 (en) | Multilayer concentric power cable | |
| JPH0527775Y2 (en) | ||
| JPS6010103Y2 (en) | Coaxial cable for mobile communication | |
| US4388486A (en) | Shielded line | |
| JPH0227609Y2 (en) | ||
| JPS6025141Y2 (en) | Wireless connection cable | |
| JPH024474Y2 (en) | ||
| CA1078467A (en) | Input impedance matching of a bipolar transistor employing a coaxial transformer | |
| GB1417093A (en) | Balun transformers | |
| JPS6025142Y2 (en) | Wireless connection cable | |
| JPH0542573Y2 (en) |