JP3095072B2 - Polarization switching antenna - Google Patents
Polarization switching antennaInfo
- Publication number
- JP3095072B2 JP3095072B2 JP10170036A JP17003698A JP3095072B2 JP 3095072 B2 JP3095072 B2 JP 3095072B2 JP 10170036 A JP10170036 A JP 10170036A JP 17003698 A JP17003698 A JP 17003698A JP 3095072 B2 JP3095072 B2 JP 3095072B2
- Authority
- JP
- Japan
- Prior art keywords
- patch antenna
- circularly polarized
- antenna
- polarization switching
- main body
- 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
- 230000010287 polarization Effects 0.000 title claims description 18
- 239000004020 conductor Substances 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 13
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000005284 excitation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/245—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction provided with means for varying the polarisation
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、衛星通信等に用い
られる円偏波を放射する円偏波アンテナに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circularly polarized antenna for radiating circularly polarized waves used for satellite communication and the like.
【０００２】[0002]
【従来の技術】図６（ａ）に右旋円偏波を放射する従来
の１点給電方式のパッチアンテナを、また、図６（ｂ）
に左旋円偏波を放射する従来の１点給電方式のパッチア
ンテナをそれぞれ示す。これらのパッチアンテナは、導
体薄板を部材としたパッチアンテナ本体７１、摂動素子
７２ａ，７２ｂでそれぞれ構成され、パッチアンテナ本
体７１への給電経路である給電線路７４が給電点７５で
それぞれ接続されている。2. Description of the Related Art FIG. 6A shows a conventional one-point feeding type patch antenna radiating right-handed circularly polarized wave, and FIG.
1 shows a conventional one-point feeding type patch antenna that radiates left-handed circularly polarized waves. These patch antennas are each composed of a patch antenna main body 71 made of a conductor thin plate and perturbation elements 72a and 72b, and a feed line 74, which is a feed path to the patch antenna main body 71, is connected at a feed point 75. .
【０００３】これらのパッチアンテナの摂動素子７２
ａ，７２ｂは、パッチアンテナ本体７１の外周で円偏波
を放射可能な位置に配置されている。The perturbation element 72 of these patch antennas
Reference numerals a and 72b are arranged on the outer periphery of the patch antenna main body 71 at positions where circularly polarized waves can be radiated.
【０００４】以下に摂動素子７２ａ，７２ｂを有する１
点給電方式の円偏波放射の原理の概略を説明する。[0004] In the following, one having perturbation elements 72a and 72b will be described.
An outline of the principle of the circularly polarized radiation of the point feeding method will be described.
【０００５】摂動素子７２ａ，７２ｂを図６（ａ）ある
いは図６（ｂ）のように配置することで、パッチアンテ
ナ本体７１には空間的に直交する２つのモード（矢印Ａ
と矢印Ｂの方向）に励振される。摂動素子７２ａ，７２
ｂの配置される矢印Ａの方向の共振周波数ｆAは、矢印
Ｂ方向の共振周波数ｆBに比較して低くなる。これら２
つのモードの周波数に対する励振分布はそれぞれ共振周
波数ｆA、ｆBを頂点とした曲線を描く。これら励振分布
曲線を比較すると、矢印Ａの方向の励振分布曲線は矢印
Ｂの方向の励振分布曲線よりも低い領域に描かれ、周波
数ｆC（ｆA＜ｆC＜ｆB）において、両曲線は交差する。
この周波数ｆCでの両励振モード間の相対位相が９０度
前後の値を取るようにパッチアンテナ本体７１の面積と
摂動素子７２ａ，７２ｂの面積との比を調整することで
パッチアンテナ本体７１は円偏波を放射することとな
る。また、給電点７５に対する２つの摂動素子７２ａ，
７２ｂの設定位置を図６（ａ）あるいは図６（ｂ）のよ
うにとることでそれぞれ右旋円偏波あるいは左旋円偏波
を放射することが可能となる。By arranging the perturbation elements 72a and 72b as shown in FIG. 6A or 6B, the patch antenna main body 71 has two spatially orthogonal modes (arrow A).
(In the direction of arrow B). Perturbation elements 72a, 72
b resonance frequency f A of the direction of the arranged by arrow A in is lower compared to the resonance frequency f B of the arrow B direction. These two
The excitation distribution for the frequencies of the two modes draws curves with the resonance frequencies f A and f B as vertices, respectively. Comparing these excitation distribution curves, the excitation distribution curve in the direction of arrow A is drawn in a region lower than the excitation distribution curve in the direction of arrow B, and at frequency f C (f A <f C <f B ), Intersect.
By adjusting the ratio of the area of the patch antenna main body 71 to the area of the perturbation elements 72a and 72b so that the relative phase between the two excitation modes at this frequency f C takes a value around 90 degrees, the patch antenna main body 71 It will emit circularly polarized waves. In addition, two perturbation elements 72a, 72a,
By setting the setting position of 72b as shown in FIG. 6 (a) or FIG. 6 (b), it becomes possible to radiate a right-handed circularly polarized wave or a left-handed circularly polarized wave, respectively.
【０００６】上述した従来例は右旋円偏波専用あるいは
左旋円偏波専用のパッチアンテナを示したものである
が、１つの円偏波パッチアンテナで右旋円偏波及び左旋
円偏波を切り換えて放射させるには、一般には図７に示
すように２点給電方式とし、切換回路８５をパッチアン
テナ本体８１に接続することで可能となる。この円偏波
パッチアンテナのパッチアンテナ本体８１には２つの給
電線路８４ａ、８４ｂが接続されており、給電線路８４
ａが選択されたときは図６（ａ）と等価となり、円偏波
パッチアンテナは右旋円偏波を放射し、また、給電経路
８４ｂが選択されたときは図６（ｂ）と等価となり、円
偏波パッチアンテナは左旋円偏波を放射することとな
る。The above-mentioned conventional example shows a patch antenna dedicated to right-handed circular polarization or a left-handed circular polarization. However, one circularly-polarized patch antenna can control right-handed circularly polarized waves and left-handed circularly polarized waves. Switching to radiate is generally possible by using a two-point feeding system as shown in FIG. 7 and connecting the switching circuit 85 to the patch antenna main body 81. Two feeder lines 84a and 84b are connected to the patch antenna body 81 of the circularly polarized patch antenna.
When a is selected, it becomes equivalent to FIG. 6A, the circularly polarized patch antenna radiates right-handed circularly polarized wave, and when the feeding path 84b is selected, it becomes equivalent to FIG. 6B. , The circularly polarized patch antenna radiates left-handed circularly polarized waves.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、上記の
パッチアンテナ本体が１つで右旋円偏波及び左旋円偏波
を切り換えて放射させる２点給電方式の従来例では、給
電経路が２本必要となることで占有面積が増大してしま
い、小型化に関して問題があった。However, in the conventional example of the two-point power feeding system in which the above-mentioned single patch antenna main body switches and emits the right-handed circularly polarized wave and the left-handed circularly polarized wave, two feeding paths are required. As a result, the occupied area increases, and there is a problem in miniaturization.
【０００８】そこで本発明は、１つのパッチアンテナ本
体で右旋円偏波及び左旋円偏波を切り換えて放射可能
な、小型の円偏波パッチアンテナを提供することを目的
とする。Accordingly, an object of the present invention is to provide a small-sized circularly-polarized patch antenna capable of switching between right-handed circularly polarized wave and left-handed circularly polarized wave and emitting the same with a single patch antenna body.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
本発明の偏波切換アンテナは、パッチアンテナ本体の外
周上に、右旋円偏波を放射可能な位置に配置された第１
の摂動素子対と、左旋円偏波を放射可能な位置に配置さ
れた第２の摂動素子対とが形成された１点給電方式の偏
波アンテナであって、前記各摂動素子対と前記パッチア
ンテナ本体との間に設けられ、前記各摂動素子対と前記
パッチアンテナ本体との接続状態を前記各摂動素子対の
いずれか一方が選択的に接続されるように切り換えるス
イッチを有することを特徴とする。In order to achieve the above object, a polarization switching antenna according to the present invention comprises a first antenna disposed on the outer periphery of a main body of a patch antenna at a position capable of emitting right-hand circularly polarized waves.
And a second perturbation element pair disposed at a position capable of radiating left-handed circularly polarized wave, wherein each of the perturbation element pair and the patch A switch provided between the antenna main body and a connection state between each of the perturbation element pairs and the patch antenna main body such that one of the perturbation element pairs is selectively connected. I do.
【００１０】上記の通り構成された本発明の偏波切換ア
ンテナは、各摂動素子対とパッチアンテナ本体との間に
設けられ、各摂動素子対とパッチアンテナ本体との接続
状態を各摂動素子対のいずれか一方が選択的に接続され
るように切り換えるスイッチを有するので、第１の摂動
素子対がパッチアンテナ本体と接続されると右旋円偏波
を放射し、第２の摂動素子対がパッチアンテナ本体と接
続されると左旋円偏波を放射する。このように、摂動素
子対への給電をスイッチにより切り換えることで、１点
給電方式の円偏波アンテナであっても円偏波の旋回方向
の切り換えが可能となる。The polarization switching antenna of the present invention configured as described above is provided between each pair of perturbation elements and the patch antenna main body, and determines the connection state between each perturbation element pair and the patch antenna main body with each perturbation element pair. Has a switch that switches so that either one of the pair is selectively connected, so that when the first pair of perturbation elements is connected to the patch antenna body, a right-handed circularly polarized wave is emitted, and the second pair of perturbation elements is When connected to the patch antenna body, it radiates left-hand circularly polarized waves. In this way, by switching the power supply to the pair of perturbation elements by the switch, it is possible to switch the turning direction of the circularly polarized wave even in the case of the circularly polarized antenna of the single-point feed type.
【００１１】パッチアンテナ本体の形状は、円形であっ
てもよいし、多角形であってもよい。The shape of the patch antenna body may be circular or polygonal.
【００１２】また、スイッチは、ＰＩＮダイオードであ
ってもよいし、ＧａＡｓ ＦＥＴであってもよく、各摂
動素子に対して複数個接続されるものであってもよい。The switch may be a PIN diode, a GaAs FET, or a plurality of switches connected to each perturbation element.
【００１３】パッチアンテナ本体への給電は、同軸線路
を用いるものでもよい。The power supply to the patch antenna body may use a coaxial line.
【００１４】また、パッチアンテナ本体は、開口部の形
成された導体層を有する、誘電体からなる基板の表面に
配置されているものでもよいし、この開口部は、パッチ
アンテナ本体の投影される位置に配置されるものでもよ
く、この場合、パッチアンテナ本体への給電は、基板の
裏面、かつ、開口部の投影される位置に配置される給電
線路からによるものでもよい。The patch antenna body may be arranged on the surface of a dielectric substrate having a conductor layer with an opening, and this opening is projected on the patch antenna body. In this case, power may be supplied to the patch antenna main body from a power supply line disposed on the rear surface of the substrate and at a position where the opening is projected.
【００１５】[0015]
【発明の実施の形態】次に、本発明の実施の形態につい
て図面を参照して説明する。Next, embodiments of the present invention will be described with reference to the drawings.
【００１６】（第１の実施形態）図１は、本発明におけ
る第１の実施形態である円偏波パッチアンテナの構成を
説明する図である。(First Embodiment) FIG. 1 is a diagram illustrating the configuration of a circularly polarized patch antenna according to a first embodiment of the present invention.
【００１７】導体薄板を部材とした、形状が円形のパッ
チアンテナ本体１の外周上に、給電線路４の長手方向に
対して略対称に、マイクロ波スイッチ３ａ、３ｂ、３
ｃ、３ｄを介して摂動素子２ａ、２ｂ、２ｃ、２ｄがそ
れぞれ取り付けられている。The microwave switches 3a, 3b, 3 are arranged on the outer periphery of the circular patch antenna body 1 made of a thin conductor plate, substantially symmetrically with respect to the longitudinal direction of the feed line 4.
The perturbation elements 2a, 2b, 2c, 2d are attached via c, 3d, respectively.
【００１８】また、パッチアンテナ本体１に電力を供給
する、マイクロストリップラインである給電線路４は、
パッチアンテナ本体１の外周部のマイクロ波スイッチ３
ｃ、３ｄ間の給電点５より給電される１点給電方式であ
る。マイクロ波スイッチ３ａ、３ｂ、３ｃ、３ｄには、
ＰＩＮダイオード、ＧａＡｓ ＦＥＴ等の素子が利用さ
れる。A feed line 4 which is a microstrip line for supplying power to the patch antenna main body 1 is:
Microwave switch 3 on the outer periphery of patch antenna body 1
This is a one-point power supply method in which power is supplied from a power supply point 5 between c and 3d. The microwave switches 3a, 3b, 3c, 3d have
Elements such as a PIN diode and a GaAs FET are used.
【００１９】本実施形態の円偏波パッチアンテナにより
右旋円偏波を発生させる場合は、マイクロ波スイッチ３
ａ、３ｃをオンにし、マイクロ波スイッチ３ｂ、３ｄを
オフにする。このとき、パッチアンテナ本体１からみ
て、摂動素子２ａ、２ｃは電気的に接続されるが、摂動
素子２ｂ、２ｄはパッチアンテナ本体１と接続されな
い。この状態で、本実施形態の円偏波パッチアンテナは
図６（ａ）に示した従来例の状態と等価となり、右旋円
偏波を放射することとなる。When a right-handed circularly polarized wave is generated by the circularly polarized patch antenna of the present embodiment, the microwave switch 3
a, 3c are turned on, and the microwave switches 3b, 3d are turned off. At this time, when viewed from the patch antenna main body 1, the perturbation elements 2a and 2c are electrically connected, but the perturbation elements 2b and 2d are not connected to the patch antenna main body 1. In this state, the circularly polarized patch antenna of this embodiment is equivalent to the state of the conventional example shown in FIG. 6A, and emits right-handed circularly polarized waves.
【００２０】また、左旋円偏波を発生させる場合は、上
述の右旋円偏波の放射方法と逆の操作を行えばよい。す
なわち、マイクロ波スイッチ３ｂ、３ｄをオンにし、マ
イクロ波スイッチ３ａ、３ｃをオフにする。これによ
り、パッチアンテナ本体１からみて、摂動素子２ｂ、２
ｄは電気的に接続されるが、摂動素子２ａ、２ｃはパッ
チアンテナ本体１と接続されない。この状態で、本実施
形態の円偏波パッチアンテナは図６（ｂ）に示した従来
例の状態と等価となり、左旋円偏波を放射することとな
る。When a left-handed circularly polarized wave is generated, an operation reverse to the above-described method for emitting a right-handed circularly polarized wave may be performed. That is, the microwave switches 3b and 3d are turned on, and the microwave switches 3a and 3c are turned off. As a result, the perturbation elements 2b, 2b
Although d is electrically connected, the perturbation elements 2a and 2c are not connected to the patch antenna main body 1. In this state, the circularly polarized patch antenna of this embodiment is equivalent to the state of the conventional example shown in FIG. 6B, and emits left-handed circularly polarized waves.
【００２１】なお、パッチアンテナ本体１の形状は図２
（ａ）〜（ｃ）に示すように、正方形、あるいは８角形
等の多角形でもよい。The shape of the patch antenna body 1 is shown in FIG.
As shown in (a) to (c), it may be a square or a polygon such as an octagon.
【００２２】以上により、スイッチのオンオフ動作のみ
により右旋円偏波と左旋円偏波との切換が可能な１点給
電方式の円偏波パッチアンテナであるため、２点給電方
式に比べ給電経路の占有面積が小さくなり、よって、円
偏波パッチアンテナを小型化することができる。As described above, since the single-point feeding type circularly polarized patch antenna is capable of switching between right-handed circular polarization and left-handed circular polarization only by the on / off operation of the switch, the feeding path is different from the two-point feeding method. Occupied by the circularly polarized patch antenna can be reduced in size.
【００２３】（第２の実施形態）次に、第１の実施形態
とは異なる、円偏波パッチアンテナへの給電方法につい
て、図３（ａ）、図３（ｂ）、図４（ａ）、図４（ｂ）
を用いて説明する。Second Embodiment Next, a method of feeding a circularly polarized patch antenna, which is different from the first embodiment, will be described with reference to FIGS. 3 (a), 3 (b) and 4 (a). , FIG. 4 (b)
This will be described with reference to FIG.
【００２４】図３（ａ）に同軸線路４７を用いて給電が
なされる円偏波パッチアンテナの外観斜視図、図３
（ｂ）には図３（ａ）の断面図をそれぞれ示す。FIG. 3A is an external perspective view of a circularly polarized patch antenna to which power is supplied using the coaxial line 47.
FIG. 3B is a cross-sectional view of FIG.
【００２５】パッチアンテナ本体４１は絶縁性の基板４
５の上面に配置されており、基板４５の下面には導電部
材からなるグランド層４６が積層されている。また、同
軸線路４７は内部導体４７ａと外部導体４７ｂを有して
おり、基板４５の下面に配置されている。この同軸線路
４７の内部導体４７ａは基板４５を貫通し、給電点４８
でパッチアンテナ本体４１に電気的に接続され、また、
外部導体４７ｂはグランド層４６に電気的に接続されて
おり、パッチアンテナ本体４１への給電は内部導体４７
ａを通して行われる。The patch antenna main body 41 is made of an insulating substrate 4
5, and a ground layer 46 made of a conductive member is laminated on the lower surface of the substrate 45. The coaxial line 47 has an inner conductor 47a and an outer conductor 47b, and is arranged on the lower surface of the substrate 45. The inner conductor 47a of the coaxial line 47 passes through the substrate 45 and
Is electrically connected to the patch antenna main body 41, and
The outer conductor 47b is electrically connected to the ground layer 46, and power is supplied to the patch antenna body 41 by the inner conductor 47b.
a.
【００２６】次に、図４（ａ）は、高周波的な電磁結合
により給電がなされる円偏波パッチアンテナの外観斜視
図、図４（ｂ）には図４（ａ）の断面図をそれぞれ示
す。FIG. 4A is an external perspective view of a circularly polarized patch antenna to which power is supplied by high-frequency electromagnetic coupling, and FIG. 4B is a sectional view of FIG. Show.
【００２７】パッチアンテナ本体５１は誘電体からなる
基板５５の上面に配置されており、基板５５の下面には
給電線路５４が配置されている。また、基板５５の内部
にはスリット５７の形成された導体層５６がパッチアン
テナ本体５１と略平行に積層されている。上述した給電
線路５４は、基板５５の下面にスリット５７が投影され
る領域をまたぐように配置されており、給電線路５４に
高周波電流が流れることで、スリット５７を介して、給
電線路５４とパッチアンテナ本体５１は高周波的な電磁
結合により給電がなされることとなる。The patch antenna main body 51 is disposed on an upper surface of a substrate 55 made of a dielectric, and a feeder line 54 is disposed on a lower surface of the substrate 55. A conductor layer 56 in which a slit 57 is formed is laminated substantially parallel to the patch antenna main body 51 inside the substrate 55. The above-described feed line 54 is disposed so as to straddle the area where the slit 57 is projected on the lower surface of the substrate 55, and the high-frequency current flows through the feed line 54, so that the feed line 54 and the patch The antenna body 51 is supplied with power by high-frequency electromagnetic coupling.
【００２８】（第３の実施形態）図５は、本実施形態の
円偏波パッチアンテナの概略構成図である。(Third Embodiment) FIG. 5 is a schematic configuration diagram of a circularly polarized patch antenna of this embodiment.
【００２９】第１の実施形態では、摂動素子２ａ、２
ｂ、２ｃ、２ｄに対して、それぞれマイクロ波スイッチ
３ａ、３ｂ、３ｃ、３ｄが１個ずつ対応していたが、本
実施形態の場合、摂動素子６２ａにマイクロ波スイッチ
６３ａ、６３ｅ、摂動素子６２ｂにマイクロ波スイッチ
６３ｂ、６３ｆ、摂動素子６２ｃにマイクロ波スイッチ
６３ｃ、６３ｇ、摂動素子６２ｄにマイクロ波スイッチ
６３ｄ、６３ｈと、１個の素子に対して２個のスイッチ
が接続されている。これにより、インピーダンスの調整
等が容易に行える。In the first embodiment, the perturbation elements 2a, 2a
The microwave switches 3a, 3b, 3c, and 3d correspond to the microwave switches b, 2c, and 2d, respectively. In the present embodiment, the microwave switches 63a, 63e, and the , Microwave switches 63c and 63g are connected to the perturbation element 62c, microwave switches 63d and 63h are connected to the perturbation element 62d, and two switches are connected to one element. This facilitates adjustment of impedance and the like.
【００３０】なお、１個の素子に対して３個以上のスイ
ッチが接続されても構わない。Note that three or more switches may be connected to one element.
【００３１】また、パッチアンテナ本体６１の形状が図
２（ａ）〜（ｃ）に示すように、正方形、あるいは８角
形等の多角形でもよい。As shown in FIGS. 2A to 2C, the shape of the patch antenna main body 61 may be a square or a polygon such as an octagon.
【００３２】[0032]
【発明の効果】以上説明したように本発明は、各摂動素
子対とパッチアンテナ本体との間に設けられ、各摂動素
子対とパッチアンテナ本体との接続状態を各摂動素子対
のいずれか一方が選択的に接続されるように切り換える
スイッチを有するので、第１の摂動素子対がパッチアン
テナ本体と接続されると右旋円偏波を放射し、第２の摂
動素子対がパッチアンテナ本体と接続されると左旋円偏
波を放射する。このように、摂動素子対への給電をスイ
ッチにより切り換えることで、１点給電方式の円偏波ア
ンテナにより円偏波の旋回方向の切り換えが可能とな
る。これにより、給電経路の占有領域が小さくなり、円
偏波パッチアンテナの小型化が図れる。As described above, the present invention is provided between each pair of perturbation elements and the patch antenna main body, and changes the connection state between each pair of perturbation elements and the patch antenna main body to one of the perturbation element pairs. Has a switch for switching to be selectively connected, so that when the first pair of perturbation elements is connected to the patch antenna main body, it emits right-handed circularly polarized waves, and the second pair of perturbation elements is connected to the patch antenna main body. When connected, it emits left-hand circularly polarized waves. In this way, by switching the power supply to the pair of perturbation elements by the switch, the turning direction of the circularly polarized wave can be switched by the circularly polarized antenna of the one-point power supply system. As a result, the area occupied by the power supply path is reduced, and the size of the circularly polarized patch antenna can be reduced.
【図１】第１の実施形態の円偏波パッチアンテナの概略
構成図である。FIG. 1 is a schematic configuration diagram of a circularly polarized patch antenna according to a first embodiment.
【図２】パッチアンテナ本体の形状例を示す図である。FIG. 2 is a diagram illustrating an example of a shape of a patch antenna main body.
【図３】同軸線路を用いて給電がなされる円偏波パッチ
アンテナの外観斜視図及びその断面図である。FIGS. 3A and 3B are an external perspective view and a cross-sectional view of a circularly polarized patch antenna fed by using a coaxial line. FIGS.
【図４】高周波的な電磁結合により給電がなされる円偏
波パッチアンテナの外観斜視図及びその断面図である。FIG. 4 is an external perspective view and a cross-sectional view of a circularly polarized patch antenna to which power is supplied by high-frequency electromagnetic coupling.
【図５】第３の実施形態の円偏波パッチアンテナの概略
構成図である。FIG. 5 is a schematic configuration diagram of a circularly polarized patch antenna according to a third embodiment.
【図６】従来の右旋円偏波あるいは左旋円偏波を放射す
る専用の１点給電方式の円偏波パッチアンテナを説明す
る図である。FIG. 6 is a diagram illustrating a conventional one-point feeding type circularly polarized patch antenna that radiates right-handed or left-handed circularly polarized waves.
【図７】従来の切換回路の接続された２点給電方式の円
偏波パッチアンテナの概略構成図である。FIG. 7 is a schematic configuration diagram of a two-point feeding type circularly polarized patch antenna to which a conventional switching circuit is connected.
１、１１、２１、３１、４１、５１、６１、７１，８１
パッチアンテナ本体 ２ａ、２ｂ、２ｃ、２ｄ、４２ａ、４２ｂ、４２ｃ、４
２ｄ、５２ａ、５２ｂ、５２ｃ、５２ｄ、６２ａ、６２
ｂ、６２ｃ、６２ｄ、７２ａ、７２ｂ、８２ａ、８２ｂ
摂動素子 ３ａ、３ｂ、３ｃ、３ｄ、４３ａ、４３ｂ、４３ｃ、４
３ｄ、５３ａ、５３ｂ、５３ｃ、５３ｄ、６３ａ、６３
ｂ、６３ｃ、６３ｄ、６３ｅ、６３ｆ、６３ｇ、６３ｈ
マイクロ波スイッチ ４、５４、６４、７４、８４ａ、８４ｂ 給電線路 ５、４８，７５ 給電点 ４５、５５ 基板 ４６ グランド層 ４７ 同軸線路 ４７ａ 内部導体 ４７ｂ 外部導体 ５６ 導体 ５７ スリット ８５ 切換回路1, 11, 21, 31, 41, 51, 61, 71, 81
Patch antenna body 2a, 2b, 2c, 2d, 42a, 42b, 42c, 4
2d, 52a, 52b, 52c, 52d, 62a, 62
b, 62c, 62d, 72a, 72b, 82a, 82b
Perturbation element 3a, 3b, 3c, 3d, 43a, 43b, 43c, 4
3d, 53a, 53b, 53c, 53d, 63a, 63
b, 63c, 63d, 63e, 63f, 63g, 63h
Microwave switch 4, 54, 64, 74, 84a, 84b Feed line 5, 48, 75 Feed point 45, 55 Substrate 46 Ground layer 47 Coaxial line 47a Inner conductor 47b Outer conductor 56 Conductor 57 Slit 85 Switching circuit
Claims (10)
偏波を放射可能な位置に配置された第１の摂動素子対
と、左旋円偏波を放射可能な位置に配置された第２の摂
動素子対とが形成された１点給電方式の偏波アンテナで
あって、 前記各摂動素子対と前記パッチアンテナ本体との間に設
けられ、前記各摂動素子対と前記パッチアンテナ本体と
の接続状態を前記各摂動素子対のいずれか一方が選択的
に接続されるように切り換えるスイッチを有することを
特徴とする偏波切換アンテナ。1. A first pair of perturbation elements arranged at a position capable of emitting a right-handed circularly polarized wave on a periphery of a patch antenna main body, and a second pair of perturbation elements arranged at a position capable of emitting a left-handed circularly polarized wave. A single-point feed type polarization antenna formed with a pair of perturbation elements, provided between each of the perturbation element pairs and the patch antenna body, and provided between the respective perturbation element pairs and the patch antenna body. A polarization switching antenna comprising a switch for switching a connection state so that one of the perturbation element pairs is selectively connected.
である請求項１に記載の偏波切換アンテナ。2. The polarization switching antenna according to claim 1, wherein the shape of the patch antenna body is circular.
形である請求項１に記載の偏波切換アンテナ。3. The polarization switching antenna according to claim 1, wherein said patch antenna body has a polygonal shape.
る請求項１ないし３のいずれか１項に記載の偏波切換ア
ンテナ。4. The polarization switching antenna according to claim 1, wherein the switch is a PIN diode.
る請求項１ないし４のいずれか１項に記載の偏波切換ア
ンテナ。5. The polarization switching antenna according to claim 1, wherein the switch is a GaAs FET.
て複数個接続される請求項１ないし５のいずれか１項に
記載の偏波切換アンテナ。6. The polarization switching antenna according to claim 1, wherein a plurality of the switches are connected to each of the perturbation elements.
軸線路を用いる請求項１ないし６のいずれか１項に記載
の偏波切換アンテナ。7. The polarization switching antenna according to claim 1, wherein power is supplied to the patch antenna body using a coaxial line.
成された導体層を有する、誘電体からなる基板の表面に
配置されている請求項１ないし６のいずれか１項に記載
の偏波切換アンテナ。8. The polarization switching according to claim 1, wherein the patch antenna main body is disposed on a surface of a dielectric substrate having a conductor layer having an opening. antenna.
の投影される位置に配置される請求項８に記載の偏波切
換アンテナ。9. The polarization switching antenna according to claim 8, wherein the opening is arranged at a position where the patch antenna main body is projected.
前記基板の裏面、かつ、前記開口部の投影される位置に
配置される給電線路からによる請求項８または９に記載
の偏波切換アンテナ。10. The power supply to the main body of the patch antenna,
10. The polarization switching antenna according to claim 8, wherein the antenna is formed from a feed line disposed on a rear surface of the substrate and at a position where the opening is projected. 11.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10170036A JP3095072B2 (en) | 1998-06-17 | 1998-06-17 | Polarization switching antenna |
| AU41668/99A AU4166899A (en) | 1998-06-17 | 1999-06-16 | One-point feeding polarized wave switching antenna |
| PCT/JP1999/003201 WO1999066592A1 (en) | 1998-06-17 | 1999-06-16 | One-point feeding polarized wave switching antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10170036A JP3095072B2 (en) | 1998-06-17 | 1998-06-17 | Polarization switching antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000004119A JP2000004119A (en) | 2000-01-07 |
| JP3095072B2 true JP3095072B2 (en) | 2000-10-03 |
Family
ID=15897428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10170036A Expired - Fee Related JP3095072B2 (en) | 1998-06-17 | 1998-06-17 | Polarization switching antenna |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3095072B2 (en) |
| AU (1) | AU4166899A (en) |
| WO (1) | WO1999066592A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013535918A (en) * | 2010-07-30 | 2013-09-12 | サランテル リミテッド | antenna |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4635326B2 (en) * | 2000-10-31 | 2011-02-23 | 株式会社村田製作所 | Antenna mounting structure and radio apparatus including the same |
| JP2004274223A (en) * | 2003-03-06 | 2004-09-30 | Matsushita Electric Ind Co Ltd | Antenna and electronic apparatus using the same |
| US7952525B2 (en) | 2005-06-03 | 2011-05-31 | Sony Corporation | Antenna device associated wireless communication apparatus and associated control methodology for multi-input and multi-output communication systems |
| JP2006340234A (en) * | 2005-06-03 | 2006-12-14 | Sony Corp | Antenna device, wireless communication apparatus, control method thereof, computer processable program, and recording medium thereof |
| JP4729989B2 (en) * | 2005-06-03 | 2011-07-20 | ソニー株式会社 | ANTENNA DEVICE, WIRELESS COMMUNICATION DEVICE, ITS CONTROL METHOD, COMPUTER-PROCESSED PROGRAM, AND RECORDING MEDIUM THEREOF |
| JP4819666B2 (en) | 2006-12-25 | 2011-11-24 | 富士通株式会社 | Wireless equipment |
| JP6599629B2 (en) * | 2015-03-31 | 2019-10-30 | マスプロ電工株式会社 | Antenna device |
| CN106059607B (en) * | 2016-07-22 | 2018-06-15 | 深圳市华讯星通讯有限公司 | Antenna transceiver and with its communication system |
| KR102176044B1 (en) * | 2019-07-29 | 2020-11-06 | 주식회사 에스원 | Dipole Antenna with Switching Means For Circular Polarization UWB |
| CN110911834B (en) * | 2019-12-02 | 2021-01-01 | 成都瑞迪威科技有限公司 | Phased array antenna capable of realizing left-right rotation circular polarization switching |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57188107A (en) * | 1981-05-14 | 1982-11-19 | Kiyohiko Ito | Polarization switching type circular polarized wave antenna |
| JP2966690B2 (en) * | 1993-05-11 | 1999-10-25 | 松下電工株式会社 | Antenna device |
| JPH07176944A (en) * | 1993-12-20 | 1995-07-14 | Fujitsu General Ltd | Microstrip antenna |
-
1998
- 1998-06-17 JP JP10170036A patent/JP3095072B2/en not_active Expired - Fee Related
-
1999
- 1999-06-16 AU AU41668/99A patent/AU4166899A/en not_active Withdrawn
- 1999-06-16 WO PCT/JP1999/003201 patent/WO1999066592A1/en active Search and Examination
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013535918A (en) * | 2010-07-30 | 2013-09-12 | サランテル リミテッド | antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000004119A (en) | 2000-01-07 |
| WO1999066592A1 (en) | 1999-12-23 |
| AU4166899A (en) | 2000-01-05 |
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