JPH0575340A - Beam tilt type plane antenna - Google Patents
Beam tilt type plane antennaInfo
- Publication number
- JPH0575340A JPH0575340A JP23582591A JP23582591A JPH0575340A JP H0575340 A JPH0575340 A JP H0575340A JP 23582591 A JP23582591 A JP 23582591A JP 23582591 A JP23582591 A JP 23582591A JP H0575340 A JPH0575340 A JP H0575340A
- Authority
- JP
- Japan
- Prior art keywords
- beam tilt
- antenna
- angle
- tilt type
- mounting wall
- 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
- 238000009434 installation Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Support Of Aerials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、衛星放送等の受信アン
テナに用いるビームチルト型平面アンテナに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam tilt type flat antenna used as a receiving antenna for satellite broadcasting.
【０００２】[0002]
【従来の技術】現在の放送衛星ＢＳ−３ａは東経１１０
゜の赤道上空約３６，０００ｋｍの高度の静止軌道にあ
り、例えば関東地方からみた放送衛星の方向１は、図２
の座標系で示されるように、方位１８０゜（南）から水
平にθH＝４５゜西側、垂直にθV＝３８゜天頂側であ
る。2. Description of the Related Art The present broadcasting satellite BS-3a is 110 East longitude.
It is in a geosynchronous orbit at an altitude of about 36,000 km above the equator at ゜. For example, the direction 1 of the broadcasting satellite seen from the Kanto region is shown in Fig. 2.
As shown in the coordinate system of, the horizontal angle is θ H = 45 ° from the azimuth 180 ° (south) and the vertical angle is θ V = 38 °.
【０００３】従来の放送衛星からの電波を受信する平面
アンテナとして、図３（ａ）及び（ｂ）に示すように、
最大利得を示す主ビーム方向３がアンテナ面の正面方向
に対してビームチルト角θTだけ斜めに設定されたビー
ムチルト型平面アンテナ２がある。このようなビームチ
ルト型平面アンテナの取り付け方法として、アンテナを
取付壁面と同一平面で回転させてその主ビーム方向を衛
星方向におおよそ合せた後、取付壁に対する取付角度を
微調整することにより、アンテナの調整角度を少なくす
る取り付け方法が特開昭６２−２８９００１号公報に示
されている。As a conventional planar antenna for receiving radio waves from a broadcasting satellite, as shown in FIGS. 3 (a) and 3 (b),
There is a beam tilt type planar antenna 2 in which a main beam direction 3 showing the maximum gain is set to be oblique with respect to the front direction of the antenna surface by a beam tilt angle θ T. As a method of mounting such a beam tilt type planar antenna, the antenna is rotated on the same plane as the mounting wall surface, the main beam direction thereof is roughly aligned with the satellite direction, and then the mounting angle with respect to the mounting wall is finely adjusted. Japanese Patent Application Laid-Open No. 62-289001 discloses a mounting method for reducing the adjustment angle.
【０００４】更に、テレビ技報ＲＥ’８８−３１（Ｓｅ
ｐ．１９８８）の「ＤＢＳ用ビームチルト型平面アンテ
ナの一構成法」では、図２の座標系において、一次元ビ
ームチルト方式にて衛星方向と対向する主ビーム方向を
実現するためには、ビームチルト角θTが５５゜程度要
求されることが示されている。具体的には、図４（ａ）
及び（ｂ）に示すように、ビームチルト角θTを５５゜
とすると、ビームチルト型平面アンテナ２の取付壁の方
位４として方位１８０゜（南）を想定した場合、アンテ
ナ回転角度θRを５０゜としアンテナの取付壁への設置
角度θSを３゜とすれば主ビーム方向３が放送衛星の方
向１と対向することになる。Furthermore, the television technical report RE'88-31 (Se
p. 1988) "A method of constructing a beam tilt type planar antenna for DBS", in order to realize the main beam direction opposite to the satellite direction by the one-dimensional beam tilt method in the coordinate system of FIG. It is shown that θ T is required to be about 55 °. Specifically, FIG. 4 (a)
And (b), assuming that the beam tilt angle θ T is 55 °, when the azimuth 180 ° (south) is assumed as the azimuth 4 of the mounting wall of the beam tilt type planar antenna 2, the antenna rotation angle θ R is If the angle of installation of the antenna to the mounting wall is 50 ° and the angle θ S is 3 °, the main beam direction 3 is opposite to the direction 1 of the broadcasting satellite.
【０００５】[0005]
【発明が解決しようとする課題】図４に示したアンテナ
の設置条件は、あくまでもアンテナの取付壁の方位が方
位１８０゜（南）であることを想定した場合の条件であ
る。これに対し、国内の住宅条件ではアンテナの取付壁
は必ずしも南面のみではない。例えば、図５（ａ）及び
（ｂ）に示すように、ビームチルト型平面アンテナ２の
取付壁の方位４として方位２２５゜（南西）を想定した
場合、ビームチルト角θTが５５゜のビームチルト型平
面アンテナ２で衛星放送を受信するためには、アンテナ
回転角度θRを１６゜とし、アンテナの取付壁への設置
角度θSを１５゜とする必要がある。このようにビーム
チルト角θTが５５゜のアンテナでは、取付壁に対する
設置角度が大きくなるとともに負角の設置状態となりア
ンテナの効率面で非常に不利な状態となってしまう。The installation condition of the antenna shown in FIG. 4 is a condition assuming that the azimuth of the mounting wall of the antenna is 180 ° (south). On the other hand, in domestic housing conditions, the antenna mounting wall is not necessarily the south side. For example, as shown in FIGS. 5A and 5B, when an azimuth 225 ° (southwest) is assumed as the azimuth 4 of the mounting wall of the beam tilt type planar antenna 2, the beam tilt angle θ T is 55 °. In order to receive satellite broadcasting with the tilt type planar antenna 2, the antenna rotation angle θ R must be 16 ° and the antenna installation angle θ S on the mounting wall must be 15 °. As described above, in the antenna having the beam tilt angle θ T of 55 °, the installation angle with respect to the mounting wall becomes large and the installation state becomes a negative angle, which is very disadvantageous in terms of antenna efficiency.
【０００６】逆にビームチルト角θTを変更することに
よりアンテナの取付壁に対する設置角度θSを０゜とす
るためには、表１に示すように取付壁の方位に対してそ
れぞれ異なったビームチルト角θTとすることが必要で
あり、各アンテナの取付壁の方位に対応したビームチル
ト角θTを有するアンテナを多種類生産することが必要
となるが、このような多種類のアンテナを生産すること
は現実的ではない。On the contrary, in order to make the installation angle θ S of the antenna with respect to the mounting wall 0 ° by changing the beam tilt angle θ T, as shown in Table 1, different beams are attached to the mounting wall azimuth. It is necessary to set the tilt angle θ T, and it is necessary to produce many kinds of antennas having a beam tilt angle θ T corresponding to the azimuth of the mounting wall of each antenna. Producing is not realistic.
【０００７】[0007]
【表１】 [Table 1]
【０００８】本発明は、方位１８０゜（南）から方位２
７０゜（西）の取付壁に対して小さな設置角度で取り付
けることが可能なビームチルト型平面アンテナを提供す
るものである。In the present invention, the azimuth is 180 ° (south) to the azimuth 2
A beam tilt type planar antenna that can be mounted at a small installation angle with respect to a mounting wall of 70 ° (west).
【０００９】[0009]
【課題を解決するための手段】本発明は、最大利得を示
す主ビーム方向がアンテナ面の正面方向に対してビーム
チルト角だけ斜めに設定されたビームチルト機能を有す
るビームチルト型平面アンテナにおいて、ビームチルト
角が４２゜〜５１゜の範囲であることを特徴とするビー
ムチルト型平面アンテナを提供するものである。The present invention provides a beam tilt type planar antenna having a beam tilt function in which a main beam direction showing maximum gain is set to be inclined by a beam tilt angle with respect to a front direction of an antenna surface. A beam tilt type flat antenna having a beam tilt angle in the range of 42 ° to 51 °.
【００１０】本発明のビームチルト型平面アンテナは、
通常アンテナを取付壁面と同一平面で回転させてその主
ビーム方向を衛星方向におおよそ合せた後、アンテナの
取付壁に対する取付角度を主ビーム方向が衛星方向に対
向するように微調整して取り付けられる。The beam tilt type planar antenna of the present invention is
Usually, the antenna is rotated in the same plane as the mounting wall surface and its main beam direction is roughly aligned with the satellite direction, and then the antenna is mounted by finely adjusting the mounting angle of the antenna to the mounting wall so that the main beam direction faces the satellite direction. ..
【００１１】ここでは、放送衛星の位置が図２の座標系
で示されるように方位１８０゜（南）から水平にθH＝
４５゜西側、垂直にθV＝３８゜天頂側であり、この放
送衛星からの放送を関東地方で受信する場合について考
える。Here, the position of the broadcasting satellite is θ H = horizontally from the azimuth of 180 ° (south) as shown in the coordinate system of FIG.
Consider the case where the west side is at 45 ° and θ V = 38 ° vertically, and the broadcast from this broadcasting satellite is received in the Kanto region.
【００１２】本発明のビームチルト型平面アンテナでは
ビームチルト角が４２゜〜５１゜の範囲であるので、方
位１８０゜（南）から方位２７０゜（西）の取付壁に対
して小さな設置角度（θS≦１０゜）で取り付けること
が可能となる。すなわち、ビームチルト角θTとアンテ
ナの取付壁に対する設置角度θSとの関係は図１に示す
ようになる。したがって、ビームチルト角を４２゜〜５
１゜の範囲とすることにより、ビームチルト型平面アン
テナを取付壁に対して小さな設置角度（θS≦１０゜）
で取り付けることが可能となる。In the beam tilt type planar antenna of the present invention, since the beam tilt angle is in the range of 42 ° to 51 °, a small installation angle (180 ° (south) to 270 ° (west) for the mounting wall ( It becomes possible to install with θ S ≦ 10 °). That is, the relationship between the beam tilt angle θ T and the installation angle θ S of the antenna with respect to the mounting wall is as shown in FIG. Therefore, the beam tilt angle is 42 ° to 5 °.
By setting the angle within the range of 1 °, the beam tilt type planar antenna can be installed at a small angle (θ S ≦ 10 °) with respect to the mounting wall.
Can be installed with.
【００１３】ここで、ビームチルト角の向きとしては、
二次元方向でなく一次元方向のみであることが給電系の
構成が容易となって好ましい。Here, as the direction of the beam tilt angle,
It is preferable that the feeding system is only in the one-dimensional direction rather than in the two-dimensional direction because the power feeding system can be easily configured.
【００１４】また、アンテナの外形としては、アンテナ
を回転させた状態で壁面に設置するので回転された状態
で比較的見栄えの良い多角形又は円形にすることが好ま
しい。Further, the outer shape of the antenna is preferably a polygon or a circle which is relatively attractive in the rotated state because the antenna is installed on the wall surface in a rotated state.
【００１５】以上関東地方で衛星放送を受信する場合に
ついて説明したが、本発明のビームチルト型平面アンテ
ナは、日本国内のいずれの地方でも十分に小さな設置角
度で取付壁に設置することができる。The case where satellite broadcasting is received in the Kanto region has been described above, but the beam tilt type planar antenna of the present invention can be installed on the mounting wall at a sufficiently small installation angle in any region of Japan.
【００１６】[0016]
【作用】ビームチルト型平面アンテナのビームチルト角
θTを４２゜〜５１゜の範囲にすると、ビームチルト角
θTとアンテナの取付壁に対する設置角度θSとの関係は
図１に示すとおりであるので、アンテナの取付壁に対す
る設置角度θSが方位１８０゜（南）から２７０゜
（西）の取付壁に対して１０゜以内となり、取付壁への
密着した設置が可能となる。When the beam tilt angle θ T of the beam tilt type planar antenna is in the range of 42 ° to 51 °, the relationship between the beam tilt angle θ T and the installation angle θ S of the antenna with respect to the mounting wall is as shown in FIG. Therefore, the installation angle θ S of the antenna with respect to the mounting wall is within 10 ° with respect to the mounting wall having an azimuth of 180 ° (south) to 270 ° (west), so that the antenna can be closely attached to the mounting wall.
【００１７】[0017]
【実施例】厚さ１ｍｍのアルミ板からなる地導体に、比
誘電率１．７７、厚さ０．８ｍｍの誘電体層を介し、厚
さ３５μｍの銅箔を設けた外形２４０×３００ｍｍのマ
イクロストリップ基板を用いた。このマイクロストリッ
プ基板上に方形パッチ型円形波放射素子をチルト面方向
に０．６λ0（λ0：使用周波数の自由空間波長）のピッ
チで１６素子、非チルト面方向に０．７５λ0のピッチ
で１６素子の計２５６素子（１６×１６素子）配列し、
チルト面方向の素子間設定位相量を１５０゜に設定して
給電系を形成することによりビームチルト型平面アンテ
ナを製作した。EXAMPLE A ground conductor made of an aluminum plate having a thickness of 1 mm and a dielectric layer having a relative permittivity of 1.77 and a thickness of 0.8 mm and a copper foil having a thickness of 35 μm provided on the ground conductor, and having an outer shape of 240 × 300 mm. A strip substrate was used. On this microstrip substrate, 16 square patch type circular wave radiating elements are arranged at a pitch of 0.6λ 0 (λ 0 : free space wavelength of the used frequency) in the tilt plane direction and 0.75λ 0 in the non-tilt plane direction. There are 16 elements in total, 256 elements (16 × 16 elements) are arranged,
A beam tilt type planar antenna was manufactured by setting the inter-element set phase amount in the tilt plane direction to 150 ° to form a feeding system.
【００１８】製作したビームチルト型平面アンテナの特
性は、ビームチルト角θTが４５゜、利得が２６ｄＢ
（効率４０％）であった。また、本アンテナにＮＦ１．
０ｄＢの低雑音コンバータを接続し各地で受信実験を行
った結果、各設置場所における方位１８０゜から２７０
゜の取付壁に対するアンテナの設置角度θSは表２に示
す通りであった。The characteristics of the manufactured beam tilt type planar antenna are that the beam tilt angle θ T is 45 ° and the gain is 26 dB.
(Efficiency 40%). In addition, NF1.
As a result of receiving experiments at various places with a 0 dB low noise converter connected, the azimuth from 180 ° to 270 at each installation location
Table 2 shows the installation angle θ S of the antenna with respect to the mounting wall of °.
【００１９】[0019]
【表２】 [Table 2]
【００２０】[0020]
【発明の効果】本発明のビームチルト型平面アンテナに
よれば、方位１８０゜（南）から２７０゜（西）の取付
壁においてアンテナの取付壁に対する取付角度を十分小
さく抑えることができるので、取付金具等の簡略化等が
図られ、更に壁に密着されることにより風や雪等の影響
も小さく、住宅美観も損ねることがない。According to the beam tilt type planar antenna of the present invention, the mounting angle of the antenna with respect to the mounting wall at an azimuth of 180 ° (south) to 270 ° (west) can be suppressed to a sufficiently small value. The metal fittings are simplified, and because they are in close contact with the wall, the influence of wind and snow is small, and the aesthetics of the house is not impaired.
【図１】ビームチルト型平面アンテナにおけるビームチ
ルト角θTと取付壁に対する設置角度θSとの関係を示す
グラフである。FIG. 1 is a graph showing a relationship between a beam tilt angle θ T and an installation angle θ S with respect to a mounting wall in a beam tilt type planar antenna.
【図２】放送衛星の方向を示す座標系を表す説明図であ
る。FIG. 2 is an explanatory diagram showing a coordinate system indicating the direction of a broadcasting satellite.
【図３】ビームチルト型平面アンテナの主ビーム方向を
示す説明図であり、（ａ）は正面説明図、（ｂ）は側面
説明図である。3A and 3B are explanatory views showing a main beam direction of a beam tilt type planar antenna, wherein FIG. 3A is a front explanatory view and FIG. 3B is a side explanatory view.
【図４】従来のビームチルト型平面アンテナの設置例を
示す説明図であり、（ａ）は斜視説明図、（ｂ）は側面
説明図である。4A and 4B are explanatory views showing an installation example of a conventional beam tilt type planar antenna, in which FIG. 4A is a perspective explanatory view and FIG. 4B is a side explanatory view.
【図５】従来のビームチルト型平面アンテナの設置例を
示す説明図であり、（ａ）は斜視説明図、（ｂ）は側面
説明図である。5A and 5B are explanatory views showing an example of installation of a conventional beam tilt type planar antenna, in which FIG. 5A is a perspective explanatory view and FIG. 5B is a side explanatory view.
１ 放送衛星の方向 ２ ビームチルト型平面アンテナ ３ 主ビーム方向 ４ 取付壁の方位 1 Direction of broadcasting satellite 2 Beam-tilt type planar antenna 3 Main beam direction 4 Direction of mounting wall
───────────────────────────────────────────────────── フロントページの続き (72)発明者 水柿 久良 茨城県下館市大字五所宮1150番地 日立化 成工業株式会社五所宮工場内 (72)発明者 羽石 操 埼玉県浦和市上木崎７−26−３ ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kura Mizukaki 1150 Goshomiya, Shimodate City, Ibaraki Prefecture Gotomiya Plant, Hitachi Chemical Co., Ltd. Three
Claims (2)
面の正面方向に対してビームチルト角だけ斜めに設定さ
れたビームチルト機能を有するビームチルト型平面アン
テナにおいて、ビームチルト角が４２゜〜５１゜の範囲
であることを特徴とするビームチルト型平面アンテナ。1. A beam tilt type planar antenna having a beam tilt function in which a main beam direction showing maximum gain is set to be inclined by a beam tilt angle with respect to a front direction of an antenna surface, and a beam tilt angle is 42 ° to 51 °. Beam tilt type planar antenna characterized by being in the range of °.
る請求項１記載のビームチルト型平面アンテナ。2. The beam tilt type planar antenna according to claim 1, wherein the direction of the beam tilt angle is a one-dimensional direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23582591A JPH0575340A (en) | 1991-09-17 | 1991-09-17 | Beam tilt type plane antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23582591A JPH0575340A (en) | 1991-09-17 | 1991-09-17 | Beam tilt type plane antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0575340A true JPH0575340A (en) | 1993-03-26 |
Family
ID=16991819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23582591A Pending JPH0575340A (en) | 1991-09-17 | 1991-09-17 | Beam tilt type plane antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0575340A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7224246B2 (en) | 2001-10-22 | 2007-05-29 | Quintel Technology Limited | Apparatus for steering an antenna system |
| US7230570B2 (en) | 2001-11-14 | 2007-06-12 | Quintel Technology Limited | Antenna system |
| US7365695B2 (en) | 2001-10-22 | 2008-04-29 | Quintel Technology Limited | Antenna system |
| US7400296B2 (en) | 2003-04-02 | 2008-07-15 | Quintel Technology Limited | Phased array antenna system with variable electrical tilt |
| US7450066B2 (en) | 2003-05-17 | 2008-11-11 | Quintel Technology Limtied | Phased array antenna system with adjustable electrical tilt |
| CN107277833A (en) * | 2017-08-10 | 2017-10-20 | 北京胜普多邦通信技术有限公司 | The multi-mode multiple target LTE base station antenna optimization method of limited parameter adjustment |
-
1991
- 1991-09-17 JP JP23582591A patent/JPH0575340A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7224246B2 (en) | 2001-10-22 | 2007-05-29 | Quintel Technology Limited | Apparatus for steering an antenna system |
| US7365695B2 (en) | 2001-10-22 | 2008-04-29 | Quintel Technology Limited | Antenna system |
| US7230570B2 (en) | 2001-11-14 | 2007-06-12 | Quintel Technology Limited | Antenna system |
| US7400296B2 (en) | 2003-04-02 | 2008-07-15 | Quintel Technology Limited | Phased array antenna system with variable electrical tilt |
| US7868823B2 (en) | 2003-04-02 | 2011-01-11 | Quintel Technology Limited | Phased array antenna system with variable electrical tilt |
| US8174442B2 (en) | 2003-04-02 | 2012-05-08 | Quintel Technology Limited | Phased array antenna system with variable electrical tilt |
| US7450066B2 (en) | 2003-05-17 | 2008-11-11 | Quintel Technology Limtied | Phased array antenna system with adjustable electrical tilt |
| CN107277833A (en) * | 2017-08-10 | 2017-10-20 | 北京胜普多邦通信技术有限公司 | The multi-mode multiple target LTE base station antenna optimization method of limited parameter adjustment |
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