JP2861228B2 - Directional coupler - Google Patents
Directional couplerInfo
- Publication number
- JP2861228B2 JP2861228B2 JP2086128A JP8612890A JP2861228B2 JP 2861228 B2 JP2861228 B2 JP 2861228B2 JP 2086128 A JP2086128 A JP 2086128A JP 8612890 A JP8612890 A JP 8612890A JP 2861228 B2 JP2861228 B2 JP 2861228B2
- Authority
- JP
- Japan
- Prior art keywords
- input
- lines
- output
- terminal
- line
- 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 - Fee Related
Links
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、主としてマイクロ波帯で用いられる方向
性結合器に関するものである。Description: TECHNICAL FIELD The present invention relates to a directional coupler mainly used in a microwave band.
［従来の技術］ 従来、この種の装置として、第３図に示すようなもの
があった。この図は Seymour B.Cohn,Ralph Levy,「ヒストリー オブ
マイクロウエーブ パッシブ コンポーネンツ ウィズ
パティキュラー アテンション トゥ ディレクショ
ナル カプラーズ」IEEE トランザクションズ オン
マイクロウエーブ セオリー アンド テクニックス
（″History of Microwave Passive Components with
Particular Attention to Directional Couplers″,IE
EE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUE
S）1984 pp1046〜1054に示されたもので、図において１
は主線路、２は副線路、３〜６は端子、７は無反射終
端、８は結合線路である。[Prior Art] Conventionally, as this type of apparatus, there has been one as shown in FIG. This is illustrated by Seymour B. Cohn, Ralph Levy, “History of
Microwave passive components with particulate attention to directional couplers "IEEE Transactions on
Microwave Theory and Techniques
("History of Microwave Passive Components with
Particular Attention to Directional Couplers ″, IE
EE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUE
S) Shown in 1984 pp 1046-1054.
Is a main line, 2 is a sub line, 3 to 6 are terminals, 7 is a non-reflection termination, and 8 is a coupling line.
次に動作について説明する。 Next, the operation will be described.
端子３に加えられた信号は、主線路１を伝搬して端子
４に出力される。主線路１の電磁界中に置かれた副線路
２は、電磁誘導によって主線路１と結合し、結合線路８
を構成するので、主線路１を伝搬する信号の一部が副線
路２に分配される。副線路２には、主線路１を伝搬する
電磁界と逆方向に伝搬する電磁界成分のみが誘導される
ため、端子３から加えた信号は、端子５に分配される。
逆に、端子４から加えられた信号は、端子６に分配され
て無反射終端器７で吸収され、端子５には現れない。従
って、主線路１を伝搬する信号のうち、端子３から端子
４に向けて伝搬する信号のみに比例した出力を、逆方向
に伝搬する信号に関係なく端子５から取り出すことがで
きるので、方向性を有する。The signal applied to terminal 3 propagates through main line 1 and is output to terminal 4. The sub-line 2 placed in the electromagnetic field of the main line 1 is coupled to the main line 1 by electromagnetic induction, and
Therefore, part of the signal propagating through the main line 1 is distributed to the sub line 2. Since only the electromagnetic field component propagating in the opposite direction to the electromagnetic field propagating through the main line 1 is guided to the sub-line 2, the signal applied from the terminal 3 is distributed to the terminal 5.
Conversely, the signal applied from terminal 4 is distributed to terminal 6 and absorbed by anti-reflection terminator 7 and does not appear at terminal 5. Therefore, an output proportional to only the signal propagating from the terminal 3 to the terminal 4 among the signals propagating through the main line 1 can be extracted from the terminal 5 regardless of the signal propagating in the reverse direction. Having.
［発明が解決しようとする課題］ 従来の方向性結合器は以上のように構成されているの
で、主線路を逆方向に伝搬する２つの信号それぞれに比
例した２出力を得ることのできる双方向の方向性結合器
を構成する場合、図４に示すように二つの方向性結合器
を直列に接続しなければならず、全体の長さが長くなる
という問題点があった。[Problems to be Solved by the Invention] Since the conventional directional coupler is configured as described above, two-way bidirectional transmission capable of obtaining two outputs proportional to each of two signals propagating in the main line in opposite directions is obtained. When the directional coupler is constructed, two directional couplers must be connected in series as shown in FIG. 4, and there is a problem that the entire length becomes long.
この発明は上記のような問題点を解決するためになさ
れたもので、小形の双方向の方向性結合器を得ることを
目的とする。The present invention has been made to solve the above problems, and has as its object to obtain a small bidirectional directional coupler.
［課題を解決するための手段］ この発明に係る方向性結合器は、２つの入出力端子
と、上記入出力端子のそれぞれに接続された等振幅電力
分配器と、上記２つの等振幅電力分配器のそれぞれの２
分岐端子の間にそれぞれ接続された２本の主線路と、上
記２本の主線路のそれぞれに沿って副線路を配置して構
成した２組の結合線路からなり、それぞれに出力端子を
有する２つの方向性結合器と、上記２組の結合線路を遮
蔽するように上記２組の結合線路の間に設けた接地導体
とを備え、上記２つの入出力端子から入力されるそれぞ
れの入力信号に対して、２つの入出力端子の一方から入
力された入力信号を他方の入出力端子および上記２つの
方向性結合器の出力端子の一方にそれぞれ分離して出力
することを特徴とするものである。[Means for Solving the Problems] A directional coupler according to the present invention includes two input / output terminals, an equal-amplitude power divider connected to each of the input / output terminals, and the two equal-amplitude power dividers. 2 of each of the vessels
It consists of two main lines respectively connected between the branch terminals, and two sets of coupled lines constituted by arranging sub-lines along each of the two main lines, each having an output terminal. Two directional couplers, and a ground conductor provided between the two sets of coupling lines so as to shield the two sets of coupling lines. On the other hand, an input signal input from one of the two input / output terminals is separated and output to the other input / output terminal and one of the output terminals of the two directional couplers. .
［作用］ この発明においては、等振幅電力分配器によって２本
の主線路に等しい振幅で分配された信号が、各主線路に
沿って配置された副線路にそれぞれ結合し、接地導体板
によって２組の結合線路どうしの影響がなくなるから、
２組の独立な方向性結合器を並列に構成でき、全体の長
さは１つ分の方向性結合器に等しくできる。[Operation] In the present invention, the signals distributed with equal amplitude to the two main lines by the equal-amplitude power divider are respectively coupled to the sub-lines arranged along each main line, and the signals are divided by the ground conductor plate. Because there is no effect between the pair of coupled lines,
Two independent sets of directional couplers can be configured in parallel, and the overall length can be equal to one directional coupler.
［実施例］ 第１図はこの発明の一実施例を示す構成図であり、１
〜８は第１図に示した従来装置の同一のものである。9,
10は等振幅電力分配器、11は接地導体壁である。FIG. 1 is a block diagram showing an embodiment of the present invention.
Numerals 8 are the same as those of the conventional apparatus shown in FIG. 9,
Numeral 10 denotes an equal-amplitude power distributor, and 11 denotes a ground conductor wall.
次に動作について説明する。 Next, the operation will be described.
端子３から加えられた信号は、等振幅電力分配器９に
よって主線路1a,1bに等振幅で２分配される。主線路1a
に加わった信号の一部は副線路2aと結合して端子5aに出
力される。主線路1bに加わった信号の一部は副線路2bと
結合して端子6bに出力され、無反射終端器7bに吸収され
る。この時、主線路1a、副線路2aによって構成される結
合線路8aと、主線路1b、副線路2bによって構成される結
合線路8bの間は、接地導体壁11によって遮蔽されている
ので、副線路2aに結合した信号と副線路2bに結合した信
号は互いに影響を及ぼさない。主線路1a,1bを伝搬した
信号は等振幅電力分配器10で合成され端子４に出力され
る。The signal applied from the terminal 3 is divided by the equal-amplitude power divider 9 into two main lines 1a and 1b with equal amplitude. Main line 1a
A part of the signal added to the signal is coupled to the sub-line 2a and output to the terminal 5a. Part of the signal applied to the main line 1b is coupled to the sub line 2b, output to the terminal 6b, and absorbed by the non-reflection terminator 7b. At this time, since the coupling line 8a composed of the main line 1a and the sub line 2a and the coupling line 8b composed of the main line 1b and the sub line 2b are shielded by the ground conductor wall 11, the sub line The signal coupled to 2a and the signal coupled to sub-line 2b do not affect each other. The signals propagated on the main lines 1a and 1b are combined by the equal-amplitude power divider 10 and output to the terminal 4.
端子４から加えられた信号は、等振幅電力分配器10に
よって主線路1a,1bに等振幅で２分配される。主線路1a
に加わった信号の一部は副線路2aと結合して端子6aに出
力され、無反射終端器7aに吸収される。主線路1bに加わ
った信号の一部は副線路2bと結合して端子5bに出力され
る。The signal applied from the terminal 4 is equally distributed to the main lines 1a and 1b by the equal-amplitude power divider 10 in two ways. Main line 1a
Is coupled to the sub-line 2a, output to the terminal 6a, and absorbed by the non-reflection terminator 7a. Part of the signal applied to the main line 1b is coupled to the sub line 2b and output to the terminal 5b.
従って、端子３および端子４から入力されるそれぞれ
逆方向に伝搬する２信号に比例した出力を、端子5aおよ
び端子5bからそれぞれ独立に取り出すことができる。Therefore, an output proportional to the two signals that are input from the terminals 3 and 4 and propagate in the opposite directions, respectively, can be independently taken out from the terminals 5a and 5b.
また第２図はこの発明の他の実施例を示すもので、１
〜8,11は上記実施例と同一のものであり、12,13はＹ分
岐、14は内導体、15,16は外導体、17,18は入出力線路で
ある。FIG. 2 shows another embodiment of the present invention.
Numerals 8, 11 are the same as those in the above-mentioned embodiment, 12 and 13 are Y branches, 14 is an inner conductor, 15 and 16 are outer conductors, and 17 and 18 are input / output lines.
なお、内導体14と外導体15,16は方形同軸線路を構成
する。また、副線路2a,2bの影響を考慮した主線路1a,1b
それぞれの特性インピーダンスは、入出力線路17,18の
特性インピーダンスの２倍になっている。The inner conductor 14 and the outer conductors 15 and 16 form a rectangular coaxial line. In addition, the main lines 1a, 1b considering the effects of the sub-lines 2a, 2b
Each characteristic impedance is twice the characteristic impedance of the input / output lines 17 and 18.
このように構成すれば、Ｙ分岐12,13が周波数特性の
ない等振幅電力分配器として作用するので、回路を小形
で広帯域に構成できるという効果がある。With this configuration, the Y-branches 12 and 13 function as equal-amplitude power dividers having no frequency characteristics, so that there is an effect that a circuit can be configured in a small size and in a wide band.
［発明の効果］ 以上のようにこの発明によれば、分岐された２本の主
線路それぞれに沿って副線路を一本ずつ配置して２組の
結合線路を構成し、２組の結合線路の間を電気的に接地
された導体板を用いて遮蔽したので、２組の独立な方向
性結合器を並列に構成することができ、双方向の方向性
結合器を小形に構成できるという効果がある。[Effects of the Invention] As described above, according to the present invention, two sets of coupled lines are formed by arranging one sub-line along each of the two branched main lines, thereby forming two sets of coupled lines. Is shielded using a conductor plate that is electrically grounded, so that two independent directional couplers can be configured in parallel, and the bidirectional directional coupler can be miniaturized. There is.
第１図はこの発明の一実施例を示す構成図、第２図は他
の実施例を示す構成図、第３図、第４図は従来例を示す
構成図である。 図において、１は主線路、２は副線路、３〜６は端子、
７は無反射終端器、８は結合線路、9,10は振幅電力分配
器、11は接地導体板、12,13はＹ分岐、14は内導体、15,
16は外導体、17,18は入出力線路である。 なお、各図中同一符号は同一または相当部分を示す。FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a block diagram showing another embodiment, and FIGS. 3 and 4 are block diagrams showing a conventional example. In the figure, 1 is a main line, 2 is a sub line, 3 to 6 are terminals,
7 is a non-reflection terminator, 8 is a coupling line, 9 and 10 are amplitude power dividers, 11 is a ground conductor plate, 12 and 13 are Y branches, 14 is an inner conductor, 15,
16 is an outer conductor, and 17 and 18 are input / output lines. In the drawings, the same reference numerals indicate the same or corresponding parts.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭60−180104（ＪＰ，Ｕ) 実開 昭56−15559（ＪＰ，Ｕ) 特公 昭44−4370（ＪＰ，Ｂ１) 実公 昭51−43082（ＪＰ，Ｙ１) 実公 昭39−27162（ＪＰ，Ｙ１) 米国特許4423392（ＵＳ，Ａ) 西独国特許出願公開3640937（ＤＥ, Ａ１) ソ連国特許発明1008884（ＳＵ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01P 5/18 H01P 5/16──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-180104 (JP, U) JP-A-56-15559 (JP, U) JP-B-44-4370 (JP, B1) JP-B-51 43082 (JP, Y1) Jikken 39-27162 (JP, Y1) US Patent 4,423,392 (US, A) West German Patent Application Publication 3640937 (DE, A1) USSR Patent Invention 1008884 (SU, A) (58) Survey Field (Int.Cl. 6 , DB name) H01P 5/18 H01P 5/16
Claims (1)
れぞれに接続された等振幅電力分配器と、上記２つの等
振幅電力分配器のそれぞれの２分岐端子の間にそれぞれ
接続された２本の主線路と、上記２本の主線路のそれぞ
れに沿って副線路を配置して構成した２組の結合線路か
らなり、それぞれに出力端子を有する２つの方向性結合
器と、上記２組の結合線路を遮蔽するように上記２組の
結合線路の間に設けた接地導体とを備え、上記２つの入
出力端子から入力されるそれぞれの入力信号に対して、
２つの入出力端子の一方から入力された入力信号を他方
の入出力端子および上記２つの方向性結合器の出力端子
の一方にそれぞれ分離して出力することを特徴とする方
向性結合器。1. An equal-amplitude power divider connected to each of two input / output terminals, each of the input / output terminals, and a two-branch terminal of each of the two equal-amplitude power dividers. Two directional couplers, each of which comprises two main lines, two sets of coupled lines configured by arranging sub-lines along each of the two main lines, each having an output terminal; A ground conductor provided between the two sets of coupled lines so as to shield the set of coupled lines, and for each input signal input from the two input / output terminals,
A directional coupler, wherein an input signal input from one of the two input / output terminals is separated and output to the other input / output terminal and one of the output terminals of the two directional couplers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2086128A JP2861228B2 (en) | 1990-03-29 | 1990-03-29 | Directional coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2086128A JP2861228B2 (en) | 1990-03-29 | 1990-03-29 | Directional coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03283701A JPH03283701A (en) | 1991-12-13 |
| JP2861228B2 true JP2861228B2 (en) | 1999-02-24 |
Family
ID=13878072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2086128A Expired - Fee Related JP2861228B2 (en) | 1990-03-29 | 1990-03-29 | Directional coupler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2861228B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015160689A1 (en) * | 2014-04-15 | 2015-10-22 | Gatesair, Inc. | Directional coupler system |
| US11335987B2 (en) | 2018-03-29 | 2022-05-17 | Murata Manufacturing Co., Ltd. | Directional coupler |
| US11894597B2 (en) | 2019-09-27 | 2024-02-06 | Murata Manufacturing Co., Ltd. | Directional coupler and electronic component module |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5376904A (en) * | 1993-05-20 | 1994-12-27 | Northern Telecom Limited | Directional coupler for differentially driven twisted line |
| DE112011104333T5 (en) * | 2010-12-10 | 2013-09-05 | Northrop Grumman Systems Corporation | Low-mass electrical foam structure |
-
1990
- 1990-03-29 JP JP2086128A patent/JP2861228B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015160689A1 (en) * | 2014-04-15 | 2015-10-22 | Gatesair, Inc. | Directional coupler system |
| US9570793B2 (en) | 2014-04-15 | 2017-02-14 | Gatesair, Inc. | Directional coupler system |
| US11335987B2 (en) | 2018-03-29 | 2022-05-17 | Murata Manufacturing Co., Ltd. | Directional coupler |
| US11894597B2 (en) | 2019-09-27 | 2024-02-06 | Murata Manufacturing Co., Ltd. | Directional coupler and electronic component module |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03283701A (en) | 1991-12-13 |
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