JPS61142802A - Waveguide converter - Google Patents

Waveguide converter

Info

Publication number
JPS61142802A
JPS61142802A JP26455684A JP26455684A JPS61142802A JP S61142802 A JPS61142802 A JP S61142802A JP 26455684 A JP26455684 A JP 26455684A JP 26455684 A JP26455684 A JP 26455684A JP S61142802 A JPS61142802 A JP S61142802A
Authority
JP
Japan
Prior art keywords
waveguide
ridge
coplanar line
line
conductor
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.)
Granted
Application number
JP26455684A
Other languages
Japanese (ja)
Other versions
JPH0640601B2 (en
Inventor
Yoshiaki Tarusawa
芳明 垂澤
Hirotsugu Ogawa
博世 小川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP26455684A priority Critical patent/JPH0640601B2/en
Publication of JPS61142802A publication Critical patent/JPS61142802A/en
Publication of JPH0640601B2 publication Critical patent/JPH0640601B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H01P5/107—Hollow-waveguide/strip-line transitions

Landscapes

  • Waveguides (AREA)
  • Waveguide Connection Structure (AREA)

Abstract

PURPOSE:To attain the conversion between a waveguide and a coplanar line by forming a taper part on an H face of a ridge waveguide excluding a ridge part and having connection between said taper part and an outer conductor of the coplanar line. CONSTITUTION:A ridge part 2 is formed on an H face of a rectangular waveguide 1 and connected to a center conductor 8 of a coplanar line 6 with a contact conductor 13. While a taper part 14 having the length approximately equal to that of the part 2 and the thickness equal to that of a dielectric substrate 10 of the line 6 is formed on an H face where no part 2 is formed. The part 14 is connected to an outer conductor 9 of the line 6 with a contact conductor 12. The distance between the part 2 and the part 14 is decreased owing to the presence of the part 14. Then a horizontal field component is produced toward the part 14 from the part 2. This produces a field mode approximate to the mode of the line 6 and therefore attains the conversion between the waveguide 1 and the line 6 with high efficiency.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は導波管とコプレナー線路との変換器に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a waveguide-to-coplanar line converter.

（従来の技術） 従来のりッジ導波管を用いた導波管とコプレナー線路と
の変換器では、第８図に示すように導波管モードをマイ
クロストリップ線路３に変換するためのりッジ導波管１
及びマイクロストリップ線路のモードをコプレナー線路
６に変換するためのマイクロストリップ−コプレナー線
路変換部５を用いていた。(Prior Art) In a conventional waveguide-coplanar line converter using a ridge waveguide, a ridge waveguide is used to convert the waveguide mode into a microstrip line 3, as shown in FIG. waveguide 1
and a microstrip-coplanar line converter 5 for converting the mode of the microstrip line into a coplanar line 6.

（発明が解決しようとする問題点） このためマイクロストリップ線路の損失及びマイクロス
トリップ−コプレナー線路変換部の損失が導波管−コプ
レナー線路変換器の損失に加わることになり、低損失の
変換器を得ることが難しく、またコプレナー線路が基板
の裏面に配置されるため、基板の実装が複雑になる等の
欠点があった。(Problem to be Solved by the Invention) For this reason, the loss of the microstrip line and the loss of the microstrip-coplanar line converter are added to the loss of the waveguide-coplanar line converter, making it possible to create a low-loss converter. In addition, since the coplanar line is placed on the back side of the board, there are drawbacks such as complicated mounting on the board.

本発明はこれらの欠点を改善することを目的とする。The present invention aims to improve these drawbacks.

（問題点を解決するための手段） 本発明は導波管から直接コプレナー線路に変換できるリ
ッジ導波管の構成を明らかにしたものであり、その特徴
は、導波管−コプレナー線路変換器において、導波管の
端部でその第１Ｈ面に裏面導体が接続するごとくコプレ
ナー線路を接続し、前記導波管は第２のＨ面のほゞ中央
にリッジ部を有し、前記第１のＨ面の対向するリッジ部
以外の部分にコプレナー線路の方向に高くなるテーパー
部が具備され、リッジ部とテーパー部の端部にコプレナ
ー線路と接続する導体片がもうけられる導波管変換器に
ある。(Means for Solving the Problems) The present invention clarifies the configuration of a ridge waveguide that can be directly converted from a waveguide to a coplanar line, and its characteristics are as follows: , a coplanar line is connected such that a back conductor is connected to the first H surface at the end of the waveguide, the waveguide has a ridge portion approximately in the center of the second H surface, and the waveguide has a ridge portion approximately at the center of the second H surface; A waveguide converter is provided with a tapered part that becomes higher in the direction of the coplanar line in a portion other than the opposing ridge part of the H surface, and a conductor piece that connects to the coplanar line is provided at the end of the ridge part and the tapered part. .

（作用） 上記構成において、導波管とコプレナー線路の接続部に
は不連続部がないので、低損失で両者が直接接続される
。(Function) In the above configuration, since there is no discontinuity in the connection between the waveguide and the coplanar line, the two are directly connected with low loss.

（実施例） 第１図は、本発明の特許請求範囲（１）の実施例であり
２はリッジ導波管のリッジ部、１４はリッジ部に対向し
たＨ面をテーパー状に低（するためのテーパー部である
。１３はリッジ部とコプレナー線路の中心導体８を接続
させるための導体部、１２はテーパー部１４とコプレナ
ー線路６の外側導体９を接続させるだめの導体部である
。テーパー部の長さはリッジ部の長さに相当するだけあ
れば十分である。(Embodiment) Fig. 1 shows an embodiment of claim (1) of the present invention, in which 2 is a ridge portion of a ridge waveguide, and 14 is a tapered lower surface of the H surface facing the ridge portion. 13 is a conductor portion for connecting the ridge portion and the center conductor 8 of the coplanar line, and 12 is a conductor portion for connecting the tapered portion 14 and the outer conductor 9 of the coplanar line 6.Tapered portion It is sufficient that the length corresponds to the length of the ridge portion.

リッジ導波管の電界の方向１５（矢印は電界の方向を模
式的に示す）は、第２図に示すようにリッジ部と導波管
のＨＷＵに集中し、ＴＥＭモードに近い分布であるため
、マイクロストリップ線路との変換が容易に行われてい
る。ところが裏面接地導体付きコプレナー線路は第３図
に示すように中心導体８と同一平面上に外部導体９があ
るため、水平方向の電界成分１６が存在することになる
。そのため従来のリッジ導波管を接続して導波管モード
を効率よく変換することは難しい。The direction 15 of the electric field in the ridge waveguide (arrows schematically indicate the direction of the electric field) is concentrated at the ridge portion and the HWU of the waveguide, as shown in Fig. 2, and has a distribution close to that of the TEM mode. , conversion to microstrip lines is easy. However, since the coplanar line with a back ground conductor has an outer conductor 9 on the same plane as the center conductor 8 as shown in FIG. 3, a horizontal electric field component 16 exists. Therefore, it is difficult to efficiently convert the waveguide mode by connecting conventional ridge waveguides.

しかしながら本発明による変換器の電界分布は、第４図
に示すようにテーパー部１４を設けたため、リッジ部と
テーパー部の間隔が小となり、テーパー部に向かう水平
方向の電界成分１８を生じさせることができ、裏面接地
導体付きコプレナー線路に近い電界分布になる。そのた
めマイクロストリップ線路を用いずに直接導波管モード
を裏面接地導体付きコプレナー線路に変換できる。However, in the electric field distribution of the converter according to the present invention, since the tapered portion 14 is provided as shown in FIG. 4, the distance between the ridge portion and the tapered portion is small, and a horizontal electric field component 18 is generated toward the tapered portion. This results in an electric field distribution similar to that of a coplanar line with a back ground conductor. Therefore, the waveguide mode can be directly converted to a coplanar line with a back ground conductor without using a microstrip line.

第５図は本発明の特許請求範囲（２）の実施例であり、
加はリッジに対向したＨ面内のＶ字形の切込み部分であ
る。本発明による変換器の電界分布は、第６図に示すよ
うに切込み部加を設けたためリッジ部２とテーパー部１
４の間にのみ存在することになる。このため第７図に示
すコプレナー線路に近い電界分布にすることができ導波
管モードを直接コプレナー線路に効率よく変換できる。FIG. 5 is an embodiment of claim (2) of the present invention,
The addition is a V-shaped notch in the H plane facing the ridge. As shown in FIG. 6, the electric field distribution of the transducer according to the present invention is different from the ridge portion 2 and the tapered portion 1 due to the addition of the notch portion.
It will only exist between 4. Therefore, the electric field distribution can be made close to that of the coplanar line shown in FIG. 7, and the waveguide mode can be directly converted into the coplanar line efficiently.

（発明の効果） 以上説明したように本発明ではリッジ導波管のリッジ部
を除いたＨ面にテーパーを設け、さらにリッジ部に対向
するＨ面内にテーパー状の切込みを入れたため、導波管
モードを直接コプレナー線路に変換し得る変換器を実現
できる利点がある。(Effects of the Invention) As explained above, in the present invention, a taper is provided on the H plane excluding the ridge part of the ridge waveguide, and a tapered cut is made in the H plane facing the ridge part, so that the waveguide This has the advantage of realizing a converter that can directly convert a tube mode into a coplanar line.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は特許請求範囲（１１に対応する実施例、第２図
はりッジ導波管の電界分布、第３図は裏面導体付きコプ
レナー線路、第４図は特許請求範囲（１）に対応する変
換器の電界分布、第５図は特許請求範囲（２）に対応す
る実施例、第６図はその電界分布、第７図はコプレナー
線路の電界分布、第８図は従来の導波管−コプレナー線
路変換器である。 ｌ・・・リッジ導波管　　　２・・・リッジ部３・・・
マイクロストリップ線路 ４・・・接触用導体　　　　５・・・変換部６・・・コ
プレナー線路　　　７・・・フランジ８・・・中心導体
　　　　　９・・・外側導体１０・・・誘電体基板　　
　　１１・・・裏面導体１２．１３・・・接触用導体　
　１４・・・テーパー部１５〜１９・・・電界の方向　
　加・・・切込み部２１．２２・・・電界の方向Figure 1 is an embodiment corresponding to claim 11, Figure 2 is the electric field distribution of the bridge waveguide, Figure 3 is a coplanar line with a back conductor, and Figure 4 is corresponding to claim (1). Fig. 5 shows an example corresponding to claim (2), Fig. 6 shows its electric field distribution, Fig. 7 shows an electric field distribution in a coplanar line, and Fig. 8 shows a conventional waveguide. - It is a coplanar line converter. l...Ridge waveguide 2...Ridge part 3...
Microstrip line 4... Contact conductor 5... Conversion section 6... Coplanar line 7... Flange 8... Center conductor 9... Outer conductor 10... Dielectric substrate
11...Back conductor 12.13...Contact conductor
14...Tapered portions 15-19...Direction of electric field
Addition: Cut portion 21.22: Direction of electric field

Claims (2)

【特許請求の範囲】[Claims] （１）導波管−コプレナー線路変換器において、導波管
の端部でその第１Ｈ面に裏面導体が接続するごとくコプ
レナー線路を接続し、前記導波管は第２のＨ面のほゞ中
央にリッジ部を有し、前記第１のＨ面の対向するリッジ
部以外の部分にコプレナー線路の方向に高くなるテーパ
ー部が具備され、リッジ部とテーパー部の端部にコプレ
ナー線路と接続する導体片がもうけられることを特徴と
する導波管変換器。(1) In a waveguide-coplanar line converter, the coplanar line is connected such that the back conductor is connected to the first H plane at the end of the waveguide, and the waveguide is connected to the second H plane almost at the end of the waveguide. It has a ridge part in the center, and a part of the first H surface other than the opposing ridge part is provided with a tapered part that becomes higher in the direction of the coplanar line, and the ridge part and the end of the tapered part are connected to the coplanar line. A waveguide converter characterized in that a conductor piece is formed. （２）テーパー部をもつ前記第１のＨ面が、リッジ部に
そってＶ字形の切込みを有することを特徴とする特許請
求の範囲第１項記載の導波管変換器。(2) The waveguide transducer according to claim 1, wherein the first H surface having a tapered portion has a V-shaped notch along the ridge portion.
JP26455684A 1984-12-17 1984-12-17 Waveguide converter Expired - Lifetime JPH0640601B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26455684A JPH0640601B2 (en) 1984-12-17 1984-12-17 Waveguide converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26455684A JPH0640601B2 (en) 1984-12-17 1984-12-17 Waveguide converter

Publications (2)

Publication Number Publication Date
JPS61142802A true JPS61142802A (en) 1986-06-30
JPH0640601B2 JPH0640601B2 (en) 1994-05-25

Family

ID=17404914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26455684A Expired - Lifetime JPH0640601B2 (en) 1984-12-17 1984-12-17 Waveguide converter

Country Status (1)

Country Link
JP (1) JPH0640601B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358497A2 (en) * 1988-09-08 1990-03-14 Varian Associates, Inc. Broadbrand microstrip to coplanar waveguide transition by anisotropic etching of gallium arsenide
US4973925A (en) * 1989-09-20 1990-11-27 Valentine Research, Inc. Double-ridge waveguide to microstrip coupling
EP0453146A2 (en) * 1990-04-16 1991-10-23 Cascade Microtech, Inc. Ridge-trough waveguide
US5262739A (en) * 1989-05-16 1993-11-16 Cornell Research Foundation, Inc. Waveguide adaptors
JPH09199913A (en) * 1996-01-11 1997-07-31 Nec Eng Ltd Waveguide and coaixal converter
WO2000035044A1 (en) * 1998-12-10 2000-06-15 Raytheon Company Broadband microstrip to parallel-plate-waveguide transition
JP2011505093A (en) * 2007-11-30 2011-02-17 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Microstrip-waveguide conversion configuration
JP2011109431A (en) * 2009-11-18 2011-06-02 Mitsubishi Electric Corp Waveguide-microstrip line converter and method of manufacturing the same
FR2953651A1 (en) * 2009-12-07 2011-06-10 Eads Defence & Security Sys MICROFREQUENCY TRANSITION DEVICE BETWEEN A MICRO-TAPE LINE AND A RECTANGULAR WAVEGUIDE
JP2020506603A (en) * 2017-01-26 2020-02-27 ケーエムダブリュ・インコーポレーテッド Transmission line-waveguide transition device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358497A2 (en) * 1988-09-08 1990-03-14 Varian Associates, Inc. Broadbrand microstrip to coplanar waveguide transition by anisotropic etching of gallium arsenide
US5262739A (en) * 1989-05-16 1993-11-16 Cornell Research Foundation, Inc. Waveguide adaptors
US4973925A (en) * 1989-09-20 1990-11-27 Valentine Research, Inc. Double-ridge waveguide to microstrip coupling
EP0453146A2 (en) * 1990-04-16 1991-10-23 Cascade Microtech, Inc. Ridge-trough waveguide
EP0453146A3 (en) * 1990-04-16 1992-01-02 Cascade Microtech, Inc. Ridge-trough waveguide
JPH09199913A (en) * 1996-01-11 1997-07-31 Nec Eng Ltd Waveguide and coaixal converter
WO2000035044A1 (en) * 1998-12-10 2000-06-15 Raytheon Company Broadband microstrip to parallel-plate-waveguide transition
JP2011505093A (en) * 2007-11-30 2011-02-17 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Microstrip-waveguide conversion configuration
JP2011109431A (en) * 2009-11-18 2011-06-02 Mitsubishi Electric Corp Waveguide-microstrip line converter and method of manufacturing the same
FR2953651A1 (en) * 2009-12-07 2011-06-10 Eads Defence & Security Sys MICROFREQUENCY TRANSITION DEVICE BETWEEN A MICRO-TAPE LINE AND A RECTANGULAR WAVEGUIDE
WO2011069980A1 (en) * 2009-12-07 2011-06-16 Eads Defence And Security Systems Microwave transition device between a microstrip line and a rectangular waveguide
CN102696145A (en) * 2009-12-07 2012-09-26 卡西迪安有限公司 Microwave transition device between a microstrip line and a rectangular waveguide
US9088060B2 (en) 2009-12-07 2015-07-21 Airbus Ds Sas Microwave transition device between a strip line and a rectangular waveguide where a metallic link bridges the waveguide and a mode converter
JP2020506603A (en) * 2017-01-26 2020-02-27 ケーエムダブリュ・インコーポレーテッド Transmission line-waveguide transition device
US11101535B2 (en) 2017-01-26 2021-08-24 Kmw Inc. Transmission line-waveguide transition device comprising a waveguide having a ridge connected to the transmission line at a reduced width ground transition area

Also Published As

Publication number Publication date
JPH0640601B2 (en) 1994-05-25

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