JP3036159B2 - Dual-polarized antenna - Google Patents
Dual-polarized antennaInfo
- Publication number
- JP3036159B2 JP3036159B2 JP3268919A JP26891991A JP3036159B2 JP 3036159 B2 JP3036159 B2 JP 3036159B2 JP 3268919 A JP3268919 A JP 3268919A JP 26891991 A JP26891991 A JP 26891991A JP 3036159 B2 JP3036159 B2 JP 3036159B2
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- circularly polarized
- patch
- handed circularly
- dual
- 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 - Lifetime
Links
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は偏波共用アンテナ、さら
に詳しくいえば、直交偏波を用いたマイクロ波衛星通信
用アンテナに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dual-polarization antenna, and more particularly, to a microwave satellite communication antenna using orthogonal polarization.
【０００２】[0002]
【従来の技術】従来の偏波共用アンテナはホーンアンテ
ナやパッチアンテナに直交する２つのポートを設け、各
ポートより直交する直線偏波を取り出していた。図４
（ａ）は従来のパッチアンテナを用いた直交偏波アンテ
ナの例を示す概略図である。パッチアンテナ１１に直交
する２つの給電点１２，１３を設け、この給電点より図
４（ｂ）に示すような直交する直線偏波Ｃ，Ｄを取り出
している。偏波方向の調整については、アンテナを機械
的に回転することにより行っていた。図４（ａ）のパッ
チアンテナ１１では当該アンテナを回転することにより
偏波方向を調整している。2. Description of the Related Art A conventional dual-polarization antenna has two ports orthogonal to a horn antenna and a patch antenna, and extracts orthogonal linear polarization from each port. FIG.
(A) is a schematic diagram showing an example of an orthogonally polarized antenna using a conventional patch antenna. Two feed points 12, 13 orthogonal to the patch antenna 11 are provided, and orthogonal linear polarizations C, D as shown in FIG. 4B are extracted from the feed points. The polarization direction was adjusted by mechanically rotating the antenna. In the patch antenna 11 of FIG. 4A, the polarization direction is adjusted by rotating the antenna.
【０００３】[0003]
【発明が解決しようとする課題】このように従来の偏波
共用アンテナでは偏波方向の調整には機械的にアンテナ
を回転しなければならないので、アンテナを取り付ける
部分に回転機構が必要となり、構成が複雑になるという
欠点があった。また、偏波追尾を行う場合にはモータ等
による機械的駆動装置が必要で、さらに構成を複雑化
し、追尾速度も遅いという欠点があった。さらにはアレ
イアンテナを構成した場合、偏波方向の調整を行うため
にアレイアンテナ全体を回転しなければならず、そのた
めの回転機構を設備する必要があり、外観も変形する等
の問題があった。本発明の目的は上記問題を解決するも
ので、電気的に偏波方向を調整可能にすることにより機
械的な回転機構を削除してアンテナの構成の単純化を図
った偏波共用アンテナを提供することにある。As described above, in the conventional dual-polarization antenna, since the antenna must be mechanically rotated to adjust the polarization direction, a rotation mechanism is required at a portion where the antenna is mounted, and the structure is not limited. However, there was a drawback that it became complicated. Further, when performing polarization tracking, a mechanical drive device such as a motor is required, and the configuration is further complicated and the tracking speed is low. Furthermore, when an array antenna is configured, the entire array antenna must be rotated in order to adjust the polarization direction, and a rotating mechanism for that must be provided, and there is a problem that the appearance is deformed. . An object of the present invention is to solve the above-mentioned problem, and to provide a dual-polarized antenna in which the polarization direction can be electrically adjusted so that a mechanical rotation mechanism is eliminated to simplify the configuration of the antenna. Is to do.
【０００４】[0004]
【課題を解決するための手段】前記目的を達成するため
に本発明による偏波共用アンテナは右旋円偏波パッチア
ンテナと左旋円偏波パッチアンテナからなる一対のパッ
チアンテナと、前記一対のパッチアンテナに直交する２
つの直線偏波で給電する３ｄＢ−９０度ハイブリッド
と、前記右旋円偏波パッチアンテナと左旋円偏波パッチ
アンテナ間に適当な位相差を与えて偏波方向の調整をす
る移相器と、前記右旋円偏波パッチアンテナと左旋円偏
波パッチアンテナの振幅を一致させるためのアッテネー
タとから構成されている。また、上記構成に前記移相器
とアッテネータの損失を補うための増幅器を備えた構成
にすることもできる。さらに前記一対のアンテナは右旋
円偏波と左旋円偏波を取り出すことができる１つのアン
テナで構成することもできる。また、上記アンテナによ
りアレイアンテナを構成し、前記３ｄＢ−９０度ハイブ
リッド，移相器，アッテネータおよび増幅器を複数の素
子アンテナで共用するようにもできる。Means for Solving the Problems The pair of package consisting polarization shared antenna is right hand circularly polarized patch A <br/> antenna and the left-handed circularly polarized patch antenna according to the invention in order to achieve the object
And Ji antenna, 2 perpendicular to the pair of patch antenna
A 3 dB-90 degree hybrid feeding with two linearly polarized waves and an appropriate phase difference between the right-handed circularly polarized patch antenna and the left-handed circularly polarized patch antenna to adjust the polarization direction.
And an attenuator for matching the amplitudes of the right-handed circularly polarized patch antenna and the left-handed circularly polarized patch antenna. Further, the above configuration may be provided with an amplifier for compensating for the loss of the phase shifter and the attenuator. Further, the pair of antennas may be constituted by one antenna capable of extracting right-handed circularly polarized wave and left-handed circularly polarized wave. Also, an array antenna can be formed by the above antenna, and the 3 dB-90 degree hybrid, phase shifter, attenuator and amplifier can be shared by a plurality of element antennas.
【０００５】[0005]
【実施例】以下、図面を参照して本発明をさらに詳しく
説明する。図１（ａ）は本発明による偏波共用アンテナ
の実施例を示す概略図である。左旋円偏波パッチアンテ
ナ（以下、「左旋円偏波アンテナ」という）１にアッテ
ネータ３を接続し、右旋円偏波パッチアンテナ（以下、
「右旋円偏波アンテナ」という）２に移相器４を接続
し、３ｄＢ−９０度ハイブリッド５により合成してい
る。直線偏波給電点６，７より直交直線偏波を取り出し
ている。移相器４の移相量を−αとすると、図１（ｂ）
に示すように給電点６よりｙ軸から（４５度＋α）傾い
た直線偏波を、給電点７より直交直線偏波を得ることが
できる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1A is a schematic diagram showing an embodiment of a dual-polarization antenna according to the present invention. Left-handed circularly polarized patch antenna
(Hereinafter referred to as “left-handed circularly polarized antenna”) 1 and an attenuator 3 connected thereto , and a right-handed circularly polarized patch antenna (hereinafter referred to as
The phase shifter 4 is connected to the “right-handed circularly polarized antenna” 2 , and is combined by a 3 dB-90 degree hybrid 5. The orthogonal linearly polarized waves are extracted from the linearly polarized wave feeding points 6 and 7. Assuming that the phase shift amount of the phase shifter 4 is -α, FIG.
As shown in (1), a linearly polarized wave tilted (45 degrees + α) from the y-axis from the feeding point 6 and an orthogonal linearly polarized wave from the feeding point 7 can be obtained.
【０００６】図２（ａ）は本発明の第２の実施例を示す
概略図で、図１（ａ）の左旋円偏波アンテナと右旋円偏
波アンテナを１つの円偏波アンテナ２１で構成した例で
ある。給電点２２，２３より左旋円偏波と右旋円偏波を
取り出している。増幅器２４，２５を設けて移相器２７
とアッテネータ２６の損失を補っている。偏波方向は図
２（ｂ）に示すように調整することができる。この図２
は受信アンテナの例であるが、増幅器２４，２５を替え
ることにより送信用アンテナ，送受信アンテナにするこ
ともできる。FIG. 2A is a schematic view showing a second embodiment of the present invention. The left-handed circularly polarized antenna and the right-handed circularly polarized antenna shown in FIG. This is a configuration example. Left circularly polarized waves and right circularly polarized waves are extracted from the feeding points 22 and 23. Providing amplifiers 24 and 25 and providing phase shifter 27
And the loss of the attenuator 26. The polarization direction can be adjusted as shown in FIG. This figure 2
Is an example of a receiving antenna, but can be a transmitting antenna and a transmitting / receiving antenna by replacing the amplifiers 24 and 25.
【０００７】図３（ａ）は本発明の第３の実施例を示す
概略図で、本発明の偏波共用アンテナでアレイアンテナ
を構成した例である。左旋円偏波給電点３２，右旋円偏
波給電点３３を直列給電で円偏波アンテナ３１をアレイ
化している。そして，増幅器３４，３５，アッテネータ
３６，移相器３７，３ｄＢ−９０度ハイブリッド３８を
共用して偏波共用アンテナを構成している。図３（ｂ）
に示すような偏波方向に調整できる。この例も受信用ア
ンテナであるが、増幅器３４，３５を替えることより図
２（ａ）と同様、送信アンテナ，送受信アンテナにする
ことができる。また、並列給電によりアレイアンテナを
構成することもできる。FIG. 3A is a schematic view showing a third embodiment of the present invention, in which an array antenna is constituted by the dual-polarization antenna of the present invention. The circularly polarized antenna 31 is arrayed by feeding the left-handed circularly polarized wave feeding point 32 and the right-handed circularly polarized wave feeding point 33 in series. The amplifiers 34 and 35, the attenuator 36, the phase shifter 37, and the 3dB-90 degree hybrid 38 are used in common to form a polarization shared antenna. FIG. 3 (b)
Can be adjusted in the polarization direction as shown in FIG. This example is also a receiving antenna. However, by changing the amplifiers 34 and 35, a transmitting antenna and a transmitting / receiving antenna can be used as in FIG. Also, an array antenna can be configured by parallel feeding.
【０００８】[0008]
【発明の効果】以上，説明したように本発明は一対の右
旋円偏波アンテナ，左旋円偏波アンテナを移相器，アッ
テネータを介して３ｄＢ−９０度ハイブリッドで合成
し、アッテネータにより右旋円偏波，左旋円偏波の振幅
を一致させて移相器で右旋円偏波，左旋円偏波間に適当
な位相差を与えることにより、３ｄＢ−９０度ハイブリ
ッドの２つのポートより任意の傾きを持つ直交直線偏波
を得ることができる。したがって、従来のアンテナに設
けていた偏波方向調整のための回転機構を削除でき、ア
ンテナ取り付け部の構造を簡単にできるという効果を有
する。また、移相器を電子的に調整することにより、モ
ータ等の機械駆動部なしで高速に偏波追尾をすることが
できる。さらに、本発明による直交偏波アンテナでアレ
イアンテナを構成した場合、アレイアンテナを固定して
移相器の調整により偏波調整を行うことができ、外観を
変化させることなく偏波調整を行うことができる。As described above, according to the present invention, a pair of right-handed circularly polarized antennas and left-handed circularly polarized antennas are combined by a 3 dB-90 degree hybrid via a phase shifter and an attenuator, and the right-handed attenuator is used by the attenuator. By making the amplitudes of the circularly polarized wave and the left circularly polarized wave coincide with each other and giving an appropriate phase difference between the right circularly polarized wave and the left circularly polarized wave by the phase shifter, any two ports of the 3dB-90 degree hybrid can be used. It is possible to obtain orthogonal linearly polarized waves having an inclination. Therefore, the rotation mechanism for adjusting the polarization direction provided in the conventional antenna can be omitted, and the structure of the antenna mounting portion can be simplified. Also, by electronically adjusting the phase shifter, polarization tracking can be performed at high speed without a mechanical drive unit such as a motor. Furthermore, when the array antenna is configured by the orthogonal polarization antenna according to the present invention, the polarization adjustment can be performed by adjusting the phase shifter while fixing the array antenna, and the polarization adjustment can be performed without changing the appearance. Can be.
【図１】本発明による偏波共用アンテナの実施例を示す
概略図である。FIG. 1 is a schematic diagram showing an embodiment of a dual-polarization antenna according to the present invention.
【図２】本発明の第２の実施例を示す概略図である。FIG. 2 is a schematic diagram showing a second embodiment of the present invention.
【図３】本発明の第３の実施例を示す概略図である。FIG. 3 is a schematic diagram showing a third embodiment of the present invention.
【図４】従来のアンテナの構成を示す概略図である。FIG. 4 is a schematic diagram showing a configuration of a conventional antenna.
１…左旋円偏波アンテナ ２…右旋円偏波アンテナ ３，２６，３６…アッテネータ ４，２７，３７…移相器 ５，２８，３８…３ｄＢ−９０度ハイブリッド ６，７，１２，１３，２９，３０，３９，４０…直線偏
波給電点 １１…パッチアンテナ ２１，３１…円偏波アンテナ ２２，３２…左旋円偏波給電点 ２３，３３…右旋円偏波給電点 ２４，２５，３４，３５…増幅器DESCRIPTION OF SYMBOLS 1 ... Left circularly polarized antenna 2 ... Right circularly polarized antenna 3, 26, 36 ... Attenuator 4, 27, 37 ... Phase shifter 5, 28, 38 ... 3dB-90 degree hybrid 6, 7, 12, 13, 29, 30, 39, 40 ... linearly polarized feeding point 11 ... patch antenna 21, 31 ... circularly polarized antenna 22, 32 ... left-handed circularly polarized feeding point 23, 33 ... right-handed circularly polarized feeding point 24, 25, 34, 35 ... amplifier
Claims (4)
パッチアンテナからなる一対のパッチアンテナと、 前記一対のパッチアンテナに直交する２つの直線偏波で
給電する３ｄＢ−９０度ハイブリッドと、 前記右旋円偏波パッチアンテナと左旋円偏波パッチアン
テナ間に適当な位相差を与えて偏波方向の調整をする移
相器と、 前記右旋円偏波パッチアンテナと左旋円偏波パッチアン
テナの振幅を一致させるためのアッテネータと、 から構成された偏波共用アンテナ。1. A right-handed circularly polarized patch antenna and a left-handed circularly polarized wave patch antenna
A pair of patch antennas composed of patch antennas, and two linearly polarized waves orthogonal to the pair of patch antennas.
A 3 dB-90 degree hybrid to power, the phase shifter for adjusting the polarization direction by applying the right-handed circularly polarized wave patch antenna and the left-handed circularly polarized patch en <br/> antenna appropriate phase difference between, the right-handed circularly polarized wave patch antenna and a left-hand circularly polarized wave sharing antennas and attenuators for matching the amplitude of the polarized patch en <br/> antenna, constructed from.
ための増幅器を備えたことを特徴とする請求項１記載の
偏波共用アンテナ。2. The dual-polarization antenna according to claim 1, further comprising an amplifier for compensating for the loss of the phase shifter and the attenuator.
円偏波を取り出すことができる１つのアンテナで構成さ
れたことを特徴とする請求項１または２記載の偏波共用
アンテナ。3. The dual-polarized antenna according to claim 1, wherein said pair of antennas is constituted by one antenna capable of extracting right-handed circularly polarized wave and left-handed circularly polarized wave.
ナによりアレイアンテナを構成し、前記３ｄＢ−９０度
ハイブリッド，移相器，アッテネータおよび増幅器を複
数の素子アンテナで共用したことを特徴とする偏波共用
アンテナ。4. An array antenna comprising the dual-polarized antenna according to claim 1, 2 or 3, wherein said 3 dB-90 degree hybrid, phase shifter, attenuator and amplifier are shared by a plurality of element antennas. Polarized antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3268919A JP3036159B2 (en) | 1991-09-20 | 1991-09-20 | Dual-polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3268919A JP3036159B2 (en) | 1991-09-20 | 1991-09-20 | Dual-polarized antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05121933A JPH05121933A (en) | 1993-05-18 |
| JP3036159B2 true JP3036159B2 (en) | 2000-04-24 |
Family
ID=17465104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3268919A Expired - Lifetime JP3036159B2 (en) | 1991-09-20 | 1991-09-20 | Dual-polarized antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3036159B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10218426B1 (en) | 2017-09-11 | 2019-02-26 | Kabushiki Kaisha Toshiba | Antenna device, wireless communication device and signal transmission method |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100673009B1 (en) | 2005-08-01 | 2007-01-24 | 삼성전자주식회사 | Apparatus for measuring center of beam profiler, ion implanter and method using the same |
| JP2007124350A (en) * | 2005-10-28 | 2007-05-17 | Seiko Epson Corp | Terminal device |
| JP2009011003A (en) * | 2008-09-30 | 2009-01-15 | Seiko Epson Corp | Receiver, and method for receiving circularly polarized wave |
| JPWO2011145264A1 (en) * | 2010-05-21 | 2013-07-22 | 日本電気株式会社 | Antenna device, antenna system, and adjustment method thereof |
| JP5392214B2 (en) * | 2010-09-27 | 2014-01-22 | 株式会社デンソーウェーブ | Portable RFID reader |
| WO2014083948A1 (en) * | 2012-11-27 | 2014-06-05 | 国立大学法人佐賀大学 | Antenna device |
| CN104319488B (en) * | 2014-11-03 | 2017-02-15 | 中国工程物理研究院应用电子学研究所 | High-power microwave phased-array antenna with reconfigurable leftward and rightward rotation circular polarization |
| JP6599629B2 (en) * | 2015-03-31 | 2019-10-30 | マスプロ電工株式会社 | Antenna device |
| JP7243483B2 (en) * | 2019-06-26 | 2023-03-22 | 日本電気株式会社 | Dual-polarized array antenna and manufacturing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941612Y2 (en) * | 1977-12-07 | 1984-12-01 | 八木アンテナ株式会社 | variable phase shifter device |
| JPS57107651A (en) * | 1980-12-25 | 1982-07-05 | Sony Corp | Receiver for circular polarized electromagnetic wave |
-
1991
- 1991-09-20 JP JP3268919A patent/JP3036159B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10218426B1 (en) | 2017-09-11 | 2019-02-26 | Kabushiki Kaisha Toshiba | Antenna device, wireless communication device and signal transmission method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05121933A (en) | 1993-05-18 |
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