JP2546141B2 - Rectangular / circular conversion tapered waveguide - Google Patents
Rectangular / circular conversion tapered waveguideInfo
- Publication number
- JP2546141B2 JP2546141B2 JP5143344A JP14334493A JP2546141B2 JP 2546141 B2 JP2546141 B2 JP 2546141B2 JP 5143344 A JP5143344 A JP 5143344A JP 14334493 A JP14334493 A JP 14334493A JP 2546141 B2 JP2546141 B2 JP 2546141B2
- Authority
- JP
- Japan
- Prior art keywords
- rectangular
- waveguide
- circular
- tapered waveguide
- impedance
- 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
Landscapes
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、マイクロ波衛星通信の
受信機もしくは受信機の放射器として用いられる給電
部、特に矩形・円形変換テーパー導波管に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding section used as a receiver or a radiator of a microwave satellite communication, and more particularly to a rectangular / circular conversion tapered waveguide.
【０００２】[0002]
【従来の技術】従来の矩形・円形変換テーパー導波管と
しては、図３に示すように、矩形開口面３から円形開口
面４に至る導波管の管軸７に垂直な断面を、円形→楕円
→矩形と徐々に変化させ、同時に管内の管軸方向のイン
ピーダンスを徐々に変えていくものがある。2. Description of the Related Art As a conventional rectangular-to-circular conversion tapered waveguide, as shown in FIG. 3, a cross section perpendicular to a waveguide axis 7 from a rectangular opening surface 3 to a circular opening surface 4 is circular. → Oval → Rectangle is gradually changed, and at the same time, the impedance in the tube axis direction is gradually changed.
【０００３】また、この従来の矩形・円形変換テーパー
導波管に類似のものとして、図４に示すように、円筒導
波管１１と、矩形導波管１３との間に放物筒導波管１２
を挟んだ構成の円形・方形モード変換器がある（特開昭
６０−３５８０２号公報参照）。なお図４において、
（ａ）は正面図、（ｂ）は右側面図である。As a similar type of the conventional rectangular / circular conversion tapered waveguide, as shown in FIG. 4, a parabolic waveguide is provided between a cylindrical waveguide 11 and a rectangular waveguide 13. Tube 12
There is a circular / rectangular mode converter having a structure sandwiching (see JP-A-60-35802). In addition, in FIG.
(A) is a front view and (b) is a right side view.
【０００４】[0004]
【発明が解決しようとする課題】従来の矩形・円形変換
テーパー導波管では、導波管の管軸に垂直な管内断面形
状を円形から矩形へ徐々に変えてやると同時に、管内の
管軸方向のインピーダンスを徐々に変えてやるため、複
雑な構成となり、任意の管軸上でテーパー導波管の断面
を考えても開口インピーダンスが求めにくいので、管軸
方向に連続的なインピーダンス分布を持たせることが困
難であり、必要以上に長くなるという欠点があった。In the conventional rectangular-circular conversion taper waveguide, the cross-sectional shape of the inside of the pipe perpendicular to the pipe axis of the waveguide is gradually changed from circular to rectangular, and at the same time, the pipe axis in the pipe is changed. Since the impedance in the direction is gradually changed, it has a complicated configuration, and it is difficult to obtain the aperture impedance even when considering the cross section of the tapered waveguide on an arbitrary tube axis, so there is a continuous impedance distribution in the tube axis direction. It is difficult to make them work, and there is a drawback that it becomes longer than necessary.
【０００５】また従来の円形・方形モード変換器では、
管軸方向に連続的なインピーダンス分布を持たせること
が困難であった。Further, in the conventional circular / square mode converter,
It was difficult to have a continuous impedance distribution in the tube axis direction.
【０００６】本発明の目的は、このような欠点を除去し
た矩形・円形変換テーパー導波管を提供することにあ
る。An object of the present invention is to provide a rectangular / circular conversion tapered waveguide in which such drawbacks are eliminated.
【０００７】[0007]
【課題を解決するための手段】本発明の矩形・円形変換
テーパー導波管は、矩形テーパー導波管と円形テーパー
導波管から成り、矩形テーパー導波管と円形テーパー導
波管の両管軸が同一直線上にあり、矩形テーパー導波管
と円形テーパー導波管の接続部において、ＴＥ01モード
に対して円形導波管の開口部のインピーダンスと矩形導
波管の開口部のインピーダンスが等しくなるように、円
形導波管の接続部の内側の径と矩形導波管の接続部の内
側の一辺と前記一辺に垂直な他辺を決めてあることを特
徴とする。The rectangular / circular conversion tapered waveguide of the present invention comprises a rectangular tapered waveguide and a circular tapered waveguide, and both the rectangular tapered waveguide and the circular tapered waveguide. The axes are on the same straight line, and the impedance of the opening of the circular waveguide and the impedance of the opening of the rectangular waveguide with respect to the TE 01 mode at the connecting portion of the rectangular tapered waveguide and the circular tapered waveguide are The inner diameter of the connection portion of the circular waveguide, the one side inside the connection portion of the rectangular waveguide, and the other side perpendicular to the one side are determined so as to be equal.
【０００８】[0008]
【実施例】図１は本発明の一実施例を示す斜視図であ
る。図１に示されるように、本矩形・円形変換テーパー
導波管は、矩形テーパー導波管１と円形テーパー導波管
２とから成り、これら２つのテーパー導波管は、同一の
管軸７上にある。FIG. 1 is a perspective view showing an embodiment of the present invention. As shown in FIG. 1, the present rectangular / circular conversion tapered waveguide comprises a rectangular tapered waveguide 1 and a circular tapered waveguide 2, and these two tapered waveguides have the same tube axis 7. It is above.
【０００９】矩形テーパー導波管１と、円形テーパー導
波管２との接続部においては、ＴＥ01モードに対して、
矩形断面５のインピーダンスと、円形断面６のインピー
ダンスとが等しくなるように、矩形断面５の縦と横の長
さ、および、円形断面６の径が決められている。このよ
うに、矩形テーパー導波管のＴＥ 01 の開口部のインピー
ダンスと、円形テーパー導波管のＴＥ 01 の開口部のイン
ピーダンスを等しくすると、直線偏波の主偏波を矩形導
波管の短辺方向とする場合、電界密度の高い部分の電界
パターンが、主偏波方向に対して類似しているため、接
合部での反射を小さくして、モード変換をスムーズにで
きる。 At the connecting portion between the rectangular tapered waveguide 1 and the circular tapered waveguide 2, for the TE 01 mode,
The vertical and horizontal lengths of the rectangular cross section 5 and the diameter of the circular cross section 6 are determined so that the impedance of the rectangular cross section 5 and the impedance of the circular cross section 6 are equal. This
The impedance of the TE 01 opening of the rectangular tapered waveguide.
Dance and TE 01 opening of circular tapered waveguide
If the impedances are equal, the linearly polarized main polarization is rectangularly guided.
In the short side direction of the wave tube, the electric field in the high electric field density area
Since the pattern is similar to the main polarization direction,
The reflection at the joint is small, and the mode conversion is smooth.
Wear.
【００１０】矩形開口面３から矩形断面５までは矩形テ
ーパー導波管であるため、形状がシンプルであり、任意
の管軸７上でインピーダンスを容易に評価でき、管軸７
方向のインピーダンス分布を容易に定め、矩形断面５の
形状を容易に定めることができる。Since the rectangular opening face 3 to the rectangular cross section 5 is a rectangular tapered waveguide, the shape is simple, and the impedance can be easily evaluated on an arbitrary tube axis 7, and the tube axis 7 can be easily evaluated.
The impedance distribution in the direction can be easily determined, and the shape of the rectangular cross section 5 can be easily determined.
【００１１】また、円形断面６から円形開口面４までは
円形テーパー導波管であるため、同様に形状がシンプル
であり、任意の管軸７上でインピーダンスを容易に評価
でき、管軸７方向のインピーダンス分布を容易に定め、
円形断面６の径を容易に定めることができる。管軸７方
向のインピーダンス分布としては、２次関数、三角関数
およびチェビシェフ分布等が考えられる。Further, since the circular cross section 6 to the circular opening surface 4 is a circular tapered waveguide, the shape is similarly simple, and the impedance can be easily evaluated on an arbitrary tube axis 7, and the direction of the tube axis 7 can be easily evaluated. The impedance distribution of
The diameter of the circular cross section 6 can be easily determined. As the impedance distribution in the tube axis 7 direction, a quadratic function, a trigonometric function, a Chebyshev distribution, etc. can be considered.
【００１２】前述したように、円形断面６と矩形断面５
においてはインピーダンスが等しく、インピーダンスの
連続性が保たれているため、本実施例の矩形・円形変換
テーパー導波管は十分にテーパー導波管としての機能を
満たしていることがわかる。As mentioned above, the circular section 6 and the rectangular section 5
Since the impedances are the same and the continuity of the impedance is maintained, it can be seen that the rectangular / circular conversion tapered waveguide of the present embodiment sufficiently satisfies the function as the tapered waveguide.
【００１３】図２は、本発明の他の実施例を示す斜視図
である。両端面に矩形開口面３−１，３−２を有する矩
形テーパー導波管２１と、両端面に円形開口面４−１，
４−２を有する円形テーパー導波管２２とを、フランジ
で結合した構造である。図１の実施例同様、ＴＥ01モー
ドに対して、矩形開口面３−２のインピーダンスと、円
形開口面４−１のインピーダンスとが等しくなるよう
に、矩形開口面３−２の縦と横の長さ、および、円形開
口面４−１の径が決められている。FIG. 2 is a perspective view showing another embodiment of the present invention. A rectangular tapered waveguide 21 having rectangular opening surfaces 3-1 and 3-2 on both end surfaces, and circular opening surfaces 4-1 and 4-1 on both end surfaces.
This is a structure in which a circular tapered waveguide 22 having 4-2 is coupled with a flange. Similar to the embodiment of FIG. 1, in the TE 01 mode, the rectangular aperture plane 3-2 is arranged vertically and horizontally so that the impedance of the rectangular aperture plane 3-2 becomes equal to the impedance of the circular aperture plane 4-1. The length and the diameter of the circular opening surface 4-1 are determined.
【００１４】[0014]
【発明の効果】以上説明したように本発明は、矩形・円
形変換テーパー導波管が矩形テーパー導波管と円形テー
パー導波管から成るために構成がシンプルである。As described above, the present invention has a simple structure because the rectangular / circular conversion tapered waveguide is composed of the rectangular tapered waveguide and the circular tapered waveguide.
【００１５】また、管軸断面が矩形もしくは円形である
ため容易に管軸上の任意の点のインピーダンスが評価で
き、管軸方向にインピーダンス分布に対応させた導波管
の管内形状を容易に決められるという利点がある。Further, since the cross section of the tube axis is rectangular or circular, the impedance at any point on the tube axis can be easily evaluated, and the shape of the waveguide inside the tube corresponding to the impedance distribution in the tube axis direction can be easily determined. The advantage is that
【００１６】さらに、管軸方向のインピーダンス分布に
対応させた導波管の管内形状を決められるため、管軸の
長さを従来の場合に比べ短くすることができるという利
点もある。Furthermore, since the shape of the inside of the waveguide corresponding to the impedance distribution in the tube axis direction can be determined, there is an advantage that the length of the tube axis can be made shorter than in the conventional case.
【図１】本発明の一実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】本発明の他の実施例を示す斜視図である。FIG. 2 is a perspective view showing another embodiment of the present invention.
【図３】従来の矩形・円形変換テーパー導波管の斜視図
である。FIG. 3 is a perspective view of a conventional rectangular / circular conversion tapered waveguide.
【図４】円形・方形モード変換器を示す正面図および側
面図である。FIG. 4 is a front view and a side view showing a circular / square mode converter.
１，２１ 矩形テーパー導波管 ２，２２ 円形テーパー導波管 ３ 矩形開口面 ４ 円形開口面 ５ 矩形断面 ６ 円形断面 ７ 管軸 １１ 円筒導波管 １２ 放物筒導波管 １３ 矩形導波管 1, 21 rectangular tapered waveguide 2, 22 circular tapered waveguide 3 rectangular opening surface 4 circular opening surface 5 rectangular section 6 circular section 7 tube axis 11 cylindrical waveguide 12 parabolic waveguide 13 rectangular waveguide
Claims (3)
から成り、矩形テーパー導波管と円形テーパー導波管の
両管軸が同一直線上にあり、矩形テーパー導波管と円形
テーパー導波管の接続部において、ＴＥ01モードに対し
て円形導波管の開口部のインピーダンスと矩形導波管の
開口部のインピーダンスが等しくなるように、円形導波
管の接続部の内側の径と矩形導波管の接続部の内側の一
辺と前記一辺に垂直な他辺を決めてあることを特徴とす
る矩形・円形変換テーパー導波管。1. A rectangular taper waveguide and a circular taper waveguide, wherein both tube axes of the rectangular taper waveguide and the circular taper waveguide are on the same straight line, and the rectangular taper waveguide and the circular taper waveguide are provided. At the connection part of the waveguide, the diameter inside the connection part of the circular waveguide is set so that the impedance of the opening part of the circular waveguide becomes equal to the impedance of the opening part of the rectangular waveguide for TE 01 mode. A rectangular / circular conversion taper waveguide characterized in that one side inside a connecting portion of the rectangular waveguide and the other side perpendicular to the one side are determined.
とは、一体に構成されていることを特徴とする矩形・円
形変換テーパー導波管。2. A rectangular / circular conversion tapered waveguide, wherein the rectangular tapered waveguide and the circular tapered waveguide are integrally configured.
とは別体に構成され、フランジで接続されていることを
特徴とする矩形・円形変換テーパー導波管。3. A rectangular / circular conversion tapered waveguide, characterized in that the rectangular tapered waveguide and the circular tapered waveguide are constructed as separate bodies and are connected by a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5143344A JP2546141B2 (en) | 1993-06-15 | 1993-06-15 | Rectangular / circular conversion tapered waveguide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5143344A JP2546141B2 (en) | 1993-06-15 | 1993-06-15 | Rectangular / circular conversion tapered waveguide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH077302A JPH077302A (en) | 1995-01-10 |
| JP2546141B2 true JP2546141B2 (en) | 1996-10-23 |
Family
ID=15336611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5143344A Expired - Fee Related JP2546141B2 (en) | 1993-06-15 | 1993-06-15 | Rectangular / circular conversion tapered waveguide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2546141B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100222665B1 (en) * | 1997-04-29 | 1999-10-01 | 이계철 | Mode converter |
| KR100222668B1 (en) * | 1997-04-29 | 1999-10-01 | 이계철 | Combination polarizer for linear and circular polarized wave |
| KR20020066312A (en) * | 2002-07-15 | 2002-08-14 | 엔알디테크 주식회사 | NRD guide - Waveguide Adaptor |
| JP5004469B2 (en) * | 2005-12-27 | 2012-08-22 | 株式会社ワイヤーデバイス | Microwave rangefinder |
| JP4989736B2 (en) * | 2010-01-19 | 2012-08-01 | 日本電信電話株式会社 | Wireless device |
| ES2394819B2 (en) * | 2011-04-15 | 2013-06-14 | Universidad De Cantabria | TRANSDUCING STRUCTURE OF WAVE GUIDE MODES BASED ON OCTOGONAL SECTIONS |
| CN113883347B (en) * | 2021-10-09 | 2023-03-14 | 中国电子科技集团公司第十四研究所 | Special-shaped section water pipe adapter with shielding effect and using method |
-
1993
- 1993-06-15 JP JP5143344A patent/JP2546141B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH077302A (en) | 1995-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |