JPH04133502A - Planar array antenna - Google Patents
Planar array antennaInfo
- Publication number
- JPH04133502A JPH04133502A JP2255971A JP25597190A JPH04133502A JP H04133502 A JPH04133502 A JP H04133502A JP 2255971 A JP2255971 A JP 2255971A JP 25597190 A JP25597190 A JP 25597190A JP H04133502 A JPH04133502 A JP H04133502A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- directivity
- inverted
- plane
- directional coupler
- 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
- 239000004020 conductor Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000005672 electromagnetic field Effects 0.000 abstract description 3
- 230000005684 electric field Effects 0.000 abstract description 2
- 230000005404 monopole Effects 0.000 abstract description 2
- 238000010295 mobile communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は積層型アンテナに係わり、特に水平面内の指向
性を切り替えるための３ｄＢ方向性結合器を組み合わせ
たアンテナに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stacked antenna, and particularly to an antenna combined with a 3 dB directional coupler for switching directivity in a horizontal plane.
第１図はデジタル移動体通信等に用いることにより、市
街地内での複雑な障害物による複数の到来波によって生
じるピント誤りの防止に効果のある指向性切り替え型ア
ンテナで、 １−１． １−２゜１〜３．１−４は線
状導体素子からなるモノボールアンテナ、２−１．２−
２．２−３．２−４は反射板、３は接地板である。FIG. 1 shows a directivity switching antenna that is effective in preventing focus errors caused by multiple arriving waves caused by complex obstacles in urban areas when used in digital mobile communications, etc. 1-1. 1-2゜1 to 3.1-4 are monoball antennas consisting of linear conductor elements, 2-1.2-
2.2-3.2-4 is a reflecting plate, and 3 is a grounding plate.
このアンテナは反射板の効果により４つのモノボールア
ンテナか接地板３に平行な水平面内で９０度の半値幅を
持つので、それぞれのアンテナからの受信または送信信
号を４方向で切り替えて使用する指向性タイパーシチ方
式か可能となる。しかし、第１図のアンテナは指向性ダ
イバーシチ方式の原理を実験的に確認するには有効であ
るが。This antenna has a half-width of 90 degrees in the horizontal plane parallel to the four monoball antennas or the ground plate 3 due to the effect of the reflector, so the reception or transmission signals from each antenna can be switched in four directions. The gender type system is possible. However, the antenna shown in FIG. 1 is effective for experimentally confirming the principle of the directional diversity system.
移動体通信用アンテナとしては実用的でない。It is not practical as an antenna for mobile communication.
本発明は、モノボールアンテナと反射板で構成したアン
テナの代わりに、小型薄型アンテナである逆Ｆ型共振放
射器と、３ｄＢ方向性結合器を組み合わせることにより
同様の効果を持つ平面型アレイアンテナを提供するもの
である。Instead of an antenna composed of a monoball antenna and a reflector, the present invention creates a planar array antenna that has a similar effect by combining an inverted F-type resonant radiator, which is a small and thin antenna, and a 3dB directional coupler. This is what we provide.
以下図面に本発明の実施例につき解説する。Embodiments of the present invention will be explained below with reference to the drawings.
第２図は、逆Ｆ型共振放射器の実施例を示すもので、４
は金属導体からなる逆Ｆ型共振放射器。Figure 2 shows an example of an inverted F-type resonant radiator, with 4
is an inverted F-type resonant radiator made of a metal conductor.
５は共振放射器４と接地板６とを短絡するための短絡板
、７は給電位置である。5 is a short-circuit plate for short-circuiting the resonant radiator 4 and the ground plate 6, and 7 is a power feeding position.
この逆Ｆ型共振放射器の大きさは図２に示すａ。The size of this inverted F-type resonant radiator is shown in FIG.
ｂ、 ｈの組み合わせで決定され、ａは共振放射器か
基本モートに励振されるとき、共振波長の１０分の１か
ら５分の工程度の長さに設定できる。また、接地板と共
振放射器の間に誘電体を充填することにより共振器の小
型化を計ることも可能である。この共振放射器からの放
射電磁界は電界の２方向数分か主要なものとなり、その
ときのｘｙ面（水平面）ではｙ軸の正負の方向に最大値
を持ち半値幅か約９０度となる８の字型、ｙｚ面（垂直
面）では接地板の上方（２＞○）でほぼ−様な指向性と
なる。It is determined by the combination of b and h, and a can be set to a step length of 1/10 to 5 minutes of the resonant wavelength when excited by a resonant radiator or fundamental moat. It is also possible to downsize the resonator by filling a dielectric between the ground plane and the resonant radiator. The radiated electromagnetic field from this resonant radiator is the main electric field in two directions, and at that time, in the xy plane (horizontal plane), the maximum value is in the positive and negative directions of the y axis, and the half width is about 90 degrees. In the figure 8 shape, in the yz plane (vertical plane), the directivity is almost negative above the ground plate (2>○).
この逆Ｆ型共振放射器では移動体通信で重要な水平面内
・指向性は８の字型であり、水平面内で指向性を切り替
えて使用する指向性ダイバーシチアンテナ用として用い
るためには水平面内の指向性を単方向にする必要がある
。In this inverted F-type resonant radiator, the directivity in the horizontal plane, which is important for mobile communications, is a figure-eight shape. Directivity must be unidirectional.
第３図は第２図に示した逆Ｆ型共振放射器を接地板上に
４つ配置し、指向性切り替えアンテナとして動作させる
場合の実施例を示すもので、８−１．８−２．８−３．
８−４は、接地板１１上に短絡板９−１．９−２．９−
３．９−４により取り付けら托、給電位置がそれぞれ１
０−１． ｌ○２．１０−３，１０−４の金属導体か
らなる逆Ｆ型共振放射器、１２−Ｌｌ２２は給電位置１
０ｉ、ｌ○−３，１０−２，ｌ○−４に接続すｈル３
ａ Ｂ方向性結合ＩＳ、 ｌ ３−１． ｌ ３−
２゜１１−１．１４−２は３ｄＢ方向性結合器の入力端
子である。FIG. 3 shows an embodiment in which four inverted F-type resonant radiators shown in FIG. 2 are arranged on a ground plane and operated as a directivity switching antenna, as described in 8-1.8-2. 8-3.
8-4 is a short circuit plate 9-1.9-2.9- on the ground plate 11.
3. According to 9-4, the mounting position and the power supply position are each 1.
0-1. l○2. Inverted F-type resonant radiator consisting of metal conductors 10-3 and 10-4, 12-Ll22 is power supply position 1
Connect to 0i, l○-3, 10-2, l○-4 3
a B directional coupling IS, l 3-1. l 3-
2°11-1.14-2 is the input terminal of the 3 dB directional coupler.
第２図に示した逆Ｆ型共振放射器は、水平面内で２つの
最大値を持つため、逆Ｆ型共振放射器８−１，８−３
（８−２，８−４）を３ｄＢ方向性結合器を介して給電
することにより、給電位置１０−１．１０−３ （１
０−２，１Ｏ−４） は、３ｄＢ方向性結合器の入出
力端子１３−１．１３−２ （１４−１，１４−２）を
切り替えることにより等振幅で位相のみ±９０度の差を
つけられることになる。このとき２本発明のアンテナで
は逆Ｆ型共振放射器８−１．８−３ （８−２，８−４
）の間隔を適宜決定できるので、±９０度の位相差によ
り水平面内の指向性の最大値を１つにすることができる
。したがって、３ｄＢ方向性結合器の入出力端子１３−
１．１３−２．１４−１．１４）の入力端子を切り替え
ることにより水平面内で指向性を切り替えることが可能
となる。Since the inverted F type resonant radiator shown in Fig. 2 has two maximum values in the horizontal plane, the inverted F type resonant radiators 8-1 and 8-3
(8-2, 8-4) through a 3 dB directional coupler, the power feeding position 10-1.10-3 (1
0-2, 1O-4), by switching the input and output terminals 13-1. It will be attached. In this case, in the two antennas of the present invention, the inverted F type resonant radiators 8-1, 8-3 (8-2, 8-4
), the maximum directivity in the horizontal plane can be set to one with a phase difference of ±90 degrees. Therefore, the input/output terminal 13- of the 3dB directional coupler
By switching the input terminals 1.13-2.14-1.14), it is possible to switch the directivity within the horizontal plane.
以上説明したように、逆Ｆ型共振放射器を平面型アレイ
アンテナとして３ｄＢ方向性結合器を組み合わせること
により、簡単な給電回路で指向性を切り替えることがで
き、特に移動体用アンテナとして本発明は有効である。As explained above, by combining an inverted F-type resonant radiator with a 3 dB directional coupler as a planar array antenna, the directivity can be switched with a simple feeding circuit, and the present invention is particularly useful as an antenna for mobile objects. It is valid.
第１図は従来のモノポールアンテナと反射板を組み合わ
せた指向性切り替え型アンテナを示す斜視図、第２図は
本発明に係わる逆Ｆ型共振放射器の実施例を示す斜視図
、および第３図は本発明に係わる逆Ｆ型共振放射器によ
る平面型アレイアンテナの斜視図と３ｄＢ方向性結合器
による給電回路の実施例である。
符号の説明、 １−１． ｌ−２，１−３，１−４
・・・モノボールアンテナ、２−１．２−２．２−３゜
２−４・・・反射板、 ３． ６． １１・・・接地
板、４，８−１．８−２，８−３．８−４・・・逆Ｆ型
共振放射器、 ５． ９−１． ９−２． ９−３．
９−４・・・短絡板、７．１０−１．１０−２．１０
−３．１０−４・・・給電位置、１２−１．１２−２・
・・３ｄＢ方向性結合器、１３−１．１３−２．１．４
−１．１４−２・・・３ｄＢ方向性結合器の入力端子。FIG. 1 is a perspective view showing a directivity switching antenna that combines a conventional monopole antenna and a reflector, FIG. 2 is a perspective view showing an embodiment of an inverted F-type resonant radiator according to the present invention, and FIG. The figure is a perspective view of a planar array antenna using an inverted F-type resonant radiator according to the present invention, and an embodiment of a feeding circuit using a 3 dB directional coupler. Explanation of symbols, 1-1. l-2, 1-3, 1-4
... Monoball antenna, 2-1.2-2.2-3°2-4... Reflector, 3. 6. 11... Ground plate, 4, 8-1.8-2, 8-3.8-4... Inverted F type resonant radiator, 5. 9-1. 9-2. 9-3.
9-4...Short circuit plate, 7.10-1.10-2.10
-3.10-4...Power supply position, 12-1.12-2.
...3dB directional coupler, 13-1.13-2.1.4
-1.14-2...3dB directional coupler input terminal.
Claims (1)
上に積層したものと、３ｄＢ方向性結合器を用いて水平
面内で指向性を切り替えることを特徴とする平面型アレ
イアンテナ。1. A planar array antenna characterized by switching the directivity in a horizontal plane using an inverted F-type resonant radiator formed of a metal conductor stacked on a ground plate and a 3 dB directional coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2255971A JPH04133502A (en) | 1990-09-26 | 1990-09-26 | Planar array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2255971A JPH04133502A (en) | 1990-09-26 | 1990-09-26 | Planar array antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04133502A true JPH04133502A (en) | 1992-05-07 |
Family
ID=17286118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2255971A Pending JPH04133502A (en) | 1990-09-26 | 1990-09-26 | Planar array antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04133502A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1094542A2 (en) * | 1999-10-18 | 2001-04-25 | Matsushita Electric Industrial Co., Ltd. | Antenna for mobile wireless communicatios and portable-type wireless apparatus using the same |
| US7046201B2 (en) | 2003-04-11 | 2006-05-16 | Taiyo Yuden Co., Ltd. | Diversity antenna apparatus |
| KR100606453B1 (en) * | 2006-01-05 | 2006-08-01 | (주)뮤트로닉스 | Dual Polarized Antenna Using Inverse F Antenna |
| JP2008211676A (en) * | 2007-02-27 | 2008-09-11 | Mitsubishi Materials Corp | Antenna device |
| JP2012209720A (en) * | 2011-03-29 | 2012-10-25 | Yagi Antenna Co Ltd | Antenna sharing system |
| US20120319919A1 (en) * | 2011-06-17 | 2012-12-20 | Microsoft Corporation | Pifa array |
| CN110112561A (en) * | 2019-06-06 | 2019-08-09 | 昆山瀚德通信科技有限公司 | A kind of single-polarized antenna |
-
1990
- 1990-09-26 JP JP2255971A patent/JPH04133502A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1094542A2 (en) * | 1999-10-18 | 2001-04-25 | Matsushita Electric Industrial Co., Ltd. | Antenna for mobile wireless communicatios and portable-type wireless apparatus using the same |
| EP1094542A3 (en) * | 1999-10-18 | 2004-05-06 | Matsushita Electric Industrial Co., Ltd. | Antenna for mobile wireless communicatios and portable-type wireless apparatus using the same |
| US7046201B2 (en) | 2003-04-11 | 2006-05-16 | Taiyo Yuden Co., Ltd. | Diversity antenna apparatus |
| KR100606453B1 (en) * | 2006-01-05 | 2006-08-01 | (주)뮤트로닉스 | Dual Polarized Antenna Using Inverse F Antenna |
| JP2008211676A (en) * | 2007-02-27 | 2008-09-11 | Mitsubishi Materials Corp | Antenna device |
| JP2012209720A (en) * | 2011-03-29 | 2012-10-25 | Yagi Antenna Co Ltd | Antenna sharing system |
| US20120319919A1 (en) * | 2011-06-17 | 2012-12-20 | Microsoft Corporation | Pifa array |
| US9799944B2 (en) * | 2011-06-17 | 2017-10-24 | Microsoft Technology Licensing, Llc | PIFA array |
| CN110112561A (en) * | 2019-06-06 | 2019-08-09 | 昆山瀚德通信科技有限公司 | A kind of single-polarized antenna |
| CN110112561B (en) * | 2019-06-06 | 2024-01-02 | 昆山瀚德通信科技有限公司 | Single-polarized antenna |
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