JPS61158201A - Polarization coupler - Google Patents
Polarization couplerInfo
- Publication number
- JPS61158201A JPS61158201A JP28078484A JP28078484A JPS61158201A JP S61158201 A JPS61158201 A JP S61158201A JP 28078484 A JP28078484 A JP 28078484A JP 28078484 A JP28078484 A JP 28078484A JP S61158201 A JPS61158201 A JP S61158201A
- Authority
- JP
- Japan
- Prior art keywords
- short circuit
- waveguide
- plate
- input
- output terminal
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
- H01P1/161—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion sustaining two independent orthogonal modes, e.g. orthomode transducer
Abstract
Description
【発明の詳細な説明】
［発明の技術分野］
本発明は、衛星放送用のパラボラアンテナ等に於いてマ
イクロ波の水平、垂直の二偏波を送受信するための偏分
波器に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a polarization splitter for transmitting and receiving horizontally and vertically polarized microwave waves in a parabolic antenna for satellite broadcasting or the like.
［従来技術とその欠点コ
従来、この種の偏分波器として例えば水平、垂直の二偏
波を送受信するＴＥｍモード導波管偏分波器は第４図に
示すように構成されている。同図に於いて、１１は本体
となる導波管であり、この導波管１１の電波送受信端１
１ａに近い側に前段入出力端子１２、遠い側に後段入出
力端子１３が設けられている。導波管１１内の中央部に
は、前段入出力（垂直偏波成分）の短絡板１４が設けら
れている。なお、矢印Ａは送信の場合の電波の進行方向
を示す。[Prior Art and Its Disadvantages] Conventionally, as this type of polarization splitter, for example, a TEm mode waveguide polarization splitter that transmits and receives two polarized waves, horizontally and vertically, is constructed as shown in FIG. In the figure, 11 is a waveguide which is the main body, and the radio wave transmitting/receiving end 1 of this waveguide 11 is
A front stage input/output terminal 12 is provided on the side closer to 1a, and a rear stage input/output terminal 13 is provided on the far side. In the center of the waveguide 11, a shorting plate 14 for input and output (vertical polarization component) of the front stage is provided. Note that arrow A indicates the traveling direction of radio waves in the case of transmission.
すなわち、この偏分波器に於いては、送受信端１１ａか
ら入力するマイクロ波の垂直偏波成分を短絡板１３で反
射し、前段入出力端子１２に導くと共に、逆偏波である
後段入出力端子１３に前段の偏波成分が結合しないよう
になっている。That is, in this polarization splitter, the vertically polarized component of the microwave input from the transmitting/receiving end 11a is reflected by the shorting plate 13 and guided to the front stage input/output terminal 12, and the second stage input/output which is the reverse polarization is reflected by the short circuit plate 13. The polarized wave component of the previous stage is not coupled to the terminal 13.
しかしながら、このような構成の従来の偏分波器では、
定在波比特性を広帯域化できないという欠点があった。However, in a conventional polarization demultiplexer with such a configuration,
The drawback was that the standing wave ratio characteristics could not be made broadband.
［発明の目的］
本発明は上記実情に鑑みてなされたもので、その目的は
、定在波比の広帯域化を実現できる偏分波器を提供する
ことにある。[Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a polarization splitter that can realize a wide band of standing wave ratio.
［発明の要点］
本発明は、ＴＥｍモードを使用する導波管偏分波器に於
いて、それぞれの偏波に対して導波管中央の短絡板に、
さらに各入出力端子より見て中央より先方へ短絡板を一
枚追加し、計２枚とすることにより、定在波比の広帯域
化を図るものである。[Summary of the Invention] The present invention provides, in a waveguide polarization splitter using TEm mode, a short circuit plate at the center of the waveguide for each polarized wave.
Furthermore, one shorting plate is added from the center as seen from each input/output terminal, making the total two, thereby widening the standing wave ratio.
［発明の実施例］ 以下、図面を参照して本発明の一実施例を説明する。[Embodiments of the invention] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は水平、垂直の二偏波を送信するＴＥＩモード偏
分波器を示すものであり、本体となる導波管２１の電波
送受信端２１ａに近い側に前段入出力端子２２、遠い側
に後段入出力端子２３が設けられている。導波管２１内
中央部には、前段入出力（垂直偏波）の短絡板２４が設
けられている。さらに、この偏分波器に於いては、入出
力端子２２より見て、中央の短絡板２４より先方にこの
短絡板２４と同様の短絡板２５が設けられ、計２枚の短
絡板が設置されている。Figure 1 shows a TEI mode polarization splitter that transmits horizontal and vertical polarized waves, with a front-stage input/output terminal 22 on the side closer to the radio wave transmitting/receiving end 21a of the waveguide 21 that is the main body, and a front-stage input/output terminal 22 on the far side A rear-stage input/output terminal 23 is provided at . A short-circuit plate 24 for input and output (vertical polarization) of the front stage is provided at the center of the waveguide 21 . Furthermore, in this polarization splitter, a shorting plate 25 similar to this shorting plate 24 is provided ahead of the central shorting plate 24 when viewed from the input/output terminal 22, and a total of two shorting plates are installed. has been done.
このように上記偏分波器にあっては、２枚の短絡板２４
．２５を導波管２１のコーナベンドと等価に配置するも
のであり、これにより定在波比特性の広帯域化を容易に
実現することができる。In this way, the polarization splitter has two shorting plates 24.
．． 25 is arranged equivalently to the corner bend of the waveguide 21, and thereby it is possible to easily realize a wide band of standing wave ratio characteristics.
また、後段入出力に対しても第２図に示すように構成す
れば、同様に広帯域化を実現できる。すなわち、第１図
の実施例に於いて、さらに後段の入出力端子２３側にも
同様の短絡板２６．２７を水平に設置するものである。Further, if the subsequent input/output is configured as shown in FIG. 2, a wide band can be similarly achieved. That is, in the embodiment shown in FIG. 1, similar shorting plates 26 and 27 are installed horizontally on the side of the input/output terminal 23 at a later stage.
第３図は第２図の実施例に於いて、さらに前段、後段の
入出力側にそれぞれ短絡板を２８．２９を一枚ずつ追加
した構造である。FIG. 3 shows a structure in which short circuit plates 28 and 29 are added to the input and output sides of the front stage and the rear stage, respectively, in the embodiment of FIG. 2.
このように短絡板を追加し、複数の短絡板をコーナベン
ドと等価に配置することにより、定在波比特性の広帯域
化を容易に図ることができ、定在波比調整工数を大幅に
削減できる。By adding a shorting plate in this way and arranging multiple shorting plates equivalently to a corner bend, it is possible to easily widen the standing wave ratio characteristic and greatly reduce the number of steps required to adjust the standing wave ratio. .
尚、前段入出力の短絡板が厚い場合、わずかであるが、
後段入出力の定在波比はその短絡板の影響を受ける。そ
のような場合、前段入出力の複数の短絡板の各長さを後
段より見た影響が相殺するように選択することにより、
後段の定在波比特性の改良を図ることも可能となる。In addition, if the shorting plate of the input/output of the previous stage is thick, the
The standing wave ratio of the input and output of the subsequent stage is affected by the shorting plate. In such a case, by selecting the lengths of the multiple shorting plates in the front stage input and output so that the effects seen from the rear stage cancel each other out,
It is also possible to improve the standing wave ratio characteristics of the subsequent stage.
［発明の効果］
以上のように本発明によれば、定在波比特性の広帯域な
偏分波器を提供することができる。[Effects of the Invention] As described above, according to the present invention, it is possible to provide a polarization splitter having a wideband standing wave ratio characteristic.
第１図は本発明の一実施例に係る偏分波器の構成を示す
斜視図、第２図及び第３図はそれぞれ本発明の他の実施
例に係る斜視図、第４図は従来の−偏分波器の構成を示
す斜視図である。
２１・・・導波管、２２・・・前段入出力端子、２３・
・・後段入出端子、２４．２５・・・短絡板。
出願人代理人 弁理士 鈴江武彦
第４図FIG. 1 is a perspective view showing the configuration of a polarization splitter according to one embodiment of the present invention, FIGS. 2 and 3 are perspective views of other embodiments of the present invention, and FIG. 4 is a conventional - It is a perspective view showing the composition of a polarization splitter. 21... Waveguide, 22... Front stage input/output terminal, 23...
...Late stage input/output terminal, 24.25...Short circuit board. Applicant's agent Patent attorney Takehiko Suzue Figure 4
Claims (1)
モードを使用した導波管偏分波器に於いて前記短絡板を
２枚以上用いることを特徴とする偏分波器。TE_m that separates microwave polarization components using a short circuit plate
A polarization demultiplexer using two or more of the shorting plates described above in a waveguide polarization demultiplexer using a mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28078484A JPS61158201A (en) | 1984-12-28 | 1984-12-28 | Polarization coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28078484A JPS61158201A (en) | 1984-12-28 | 1984-12-28 | Polarization coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61158201A true JPS61158201A (en) | 1986-07-17 |
Family
ID=17629906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28078484A Pending JPS61158201A (en) | 1984-12-28 | 1984-12-28 | Polarization coupler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61158201A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6399602A (en) * | 1986-10-16 | 1988-04-30 | Yuniden Kk | Multiplexer or branching filter for orthogonally polarized wave |
| US6225875B1 (en) * | 1998-10-06 | 2001-05-01 | Hughes Electronics Corporation | Dual sidewall coupled orthomode transducer having septum offset from the transducer axis |
| CN108183300A (en) * | 2017-12-26 | 2018-06-19 | 北京无线电测量研究所 | A kind of orthomode coupler of Dual-band dual-polarization |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167715A (en) * | 1978-06-22 | 1979-09-11 | Bell Telephone Laboratories, Incorporated | Wideband polarization coupler |
-
1984
- 1984-12-28 JP JP28078484A patent/JPS61158201A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167715A (en) * | 1978-06-22 | 1979-09-11 | Bell Telephone Laboratories, Incorporated | Wideband polarization coupler |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6399602A (en) * | 1986-10-16 | 1988-04-30 | Yuniden Kk | Multiplexer or branching filter for orthogonally polarized wave |
| US6225875B1 (en) * | 1998-10-06 | 2001-05-01 | Hughes Electronics Corporation | Dual sidewall coupled orthomode transducer having septum offset from the transducer axis |
| CN108183300A (en) * | 2017-12-26 | 2018-06-19 | 北京无线电测量研究所 | A kind of orthomode coupler of Dual-band dual-polarization |
| CN108183300B (en) * | 2017-12-26 | 2021-03-16 | 北京无线电测量研究所 | Dual-band dual-polarized orthogonal mode coupler |
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