JPH11136024A - Plane antenna - Google Patents
Plane antennaInfo
- Publication number
- JPH11136024A JPH11136024A JP30021497A JP30021497A JPH11136024A JP H11136024 A JPH11136024 A JP H11136024A JP 30021497 A JP30021497 A JP 30021497A JP 30021497 A JP30021497 A JP 30021497A JP H11136024 A JPH11136024 A JP H11136024A
- Authority
- JP
- Japan
- Prior art keywords
- dielectric
- fixture
- ground conductor
- fixing
- side plate
- 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
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、マイクロ波やミリ
波帯の送受信に用いる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 planar antenna used for transmitting and receiving microwaves and millimeter waves.
【0002】[0002]
【従来の技術】平面アンテナにおいて、給電線路を低損
失化し効率を高くする方法として、図5に示すような、
地導体1と、誘導体5aと、複数の放射素子8とその放
射素子8に接続された給電線路9とを形成した給電基板
6と、誘電体5bと、放射素子8に対応する位置にスロ
ット10を複数形成した導体板7とを、この順に積層配
置したトリプレート構造の平面アンテナが知られてい
る。2. Description of the Related Art In a planar antenna, as a method of reducing the loss of a feed line and increasing the efficiency, as shown in FIG.
A feeder board 6 on which a ground conductor 1, a dielectric 5a, a plurality of radiating elements 8 and a feeder line 9 connected to the radiating elements 8 are formed, a dielectric 5b, and a slot 10 at a position corresponding to the radiating element 8; There is known a planar antenna having a triplate structure in which a plurality of conductive plates 7 are stacked in this order.
【0003】近年では、小型で軽量な平面アンテナは、
周波数の高い分野でも使われ始めており、このような平
面アンテナにおいては、高い組立精度を要求されてい
る。そこで、現状では、誘電体5aと、給電基板6と、
誘電体5bと、導体板7を固定するために、図5に示す
ようなネジ11を用いているので、雌ネジを地導体1に
形成しなければならず、ある程度の厚さを必要とする。
したがって、地導体1の厚さと重量は避けられないもの
となる。また、この地導体1の製作には、工作精度の高
い切削やダイカストなどの工法が用いられている。In recent years, small and lightweight planar antennas have
It has also begun to be used in high frequency fields, and such planar antennas require high assembly accuracy. Therefore, at present, the dielectric 5a, the power supply substrate 6,
Since the screw 11 as shown in FIG. 5 is used to fix the dielectric 5b and the conductor plate 7, a female screw must be formed in the ground conductor 1, and a certain thickness is required. .
Therefore, the thickness and weight of the ground conductor 1 are inevitable. The ground conductor 1 is manufactured by a method such as cutting or die casting with high working accuracy.
【0004】[0004]
【発明が解決しようとする課題】このようなアンテナを
用いて、アンテナのメインビームの方向を制御する方法
として、アンテナを機械的に回転させる方法がある。こ
の方法は、通常では、戸外で行われるため、機器の運搬
や取り付けを容易にしなければならず、また、供給電源
の電力も限られていることが多く、さらに、追従の動作
に高い応答速度を要求されることもあり、アンテナをで
きるだけ薄型化および軽量化し、回転させるための駆動
部への負担を軽減することが必要である。As a method of controlling the direction of the main beam of the antenna using such an antenna, there is a method of mechanically rotating the antenna. Since this method is usually performed outdoors, the equipment must be easily transported and installed, the power of the power supply is often limited, and the response speed of the following operation is high. Therefore, it is necessary to reduce the thickness and weight of the antenna as much as possible and to reduce the load on the drive unit for rotating the antenna.
【0005】また、誘電体5aと、給電基板6と、誘電
体5bと、導体板7とを地導体1に固定するために、ネ
ジ11を用いると、製作にも時間がかかるため、組立工
程の簡略化が求められている。Further, if screws 11 are used to fix the dielectric 5a, the power supply board 6, the dielectric 5b, and the conductor plate 7 to the ground conductor 1, it takes a long time to manufacture. Is required to be simplified.
【0006】本発明は、薄型化および軽量化に優れ、か
つ組立工程を簡便にすることのできる平面アンテナを提
供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a planar antenna which is excellent in thickness reduction and weight reduction and can simplify an assembling process.
【0007】[0007]
【課題を解決するための手段】本発明の提供するアンテ
ナは、図1に示すように、地導体1と、誘導体5aと、
複数の放射素子8とその放射素子8に接続された給電線
路9とを形成した給電基板6と、誘電体5bと、放射素
子8に対応する位置にスロット10を複数形成した導体
板7とを、この順に積層配置した平面アンテナであっ
て、これらの各部品を固定するための固定具2として、
底面部2aと、底面部2aの対向する2辺に底面部2a
から垂直に立ち上がる側板2bと、側板2bの上端部に
設けた内側に突出する固定片2cを備えた固定具2を有
することを特徴とする。As shown in FIG. 1, an antenna provided by the present invention comprises a ground conductor 1, a derivative 5a,
A feed board 6 having a plurality of radiating elements 8 and a feed line 9 connected to the radiating elements 8, a dielectric 5 b, and a conductor plate 7 having a plurality of slots 10 formed at positions corresponding to the radiating elements 8. And planar antennas stacked in this order, and as a fixture 2 for fixing these components,
A bottom surface portion 2a and a bottom surface portion 2a on two opposite sides of the bottom surface portion 2a.
And a fixing tool 2 having a fixing piece 2c provided at the upper end of the side plate 2b and protruding inward.
【0008】本発明においては、地導体1、誘導体5
a、給電基板6、誘電体5b、及び導体板7をこの順に
重ね、固定具2の底面部2aと固定片2cとの間に挟み
込む。側板2bの高さは、地導体1、誘導体5a、給電
基板6、誘電体5b、及び導体板7を挟んで、固定片2
cが弾力で固定されるように調製されている。[0008] In the present invention, the ground conductor 1, the derivative 5
a, the power supply board 6, the dielectric 5b, and the conductor plate 7 are stacked in this order, and sandwiched between the bottom surface 2a of the fixture 2 and the fixing piece 2c. The height of the side plate 2b is such that the fixing piece 2 is sandwiched between the ground conductor 1, the dielectric 5a, the power supply board 6, the dielectric 5b, and the conductor plate 7.
It is prepared so that c is elastically fixed.
【0009】[0009]
【発明の実施の形態】本発明の固定具2は、図2に示す
ように、その全面にめっき皮膜4を形成し、地導体1を
兼ねることができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 2, a fixture 2 of the present invention can form a plating film 4 on the entire surface thereof and can also serve as a ground conductor 1.
【0010】本発明の固定片2cは、図3のC部拡大図
に示すように、固定する面から側板2bの上端部に向か
って、鋭角の斜面12を設けることで、放射素子8を縁
に近い箇所に配置しても、電波の送受信の妨げにならず
好ましい。The fixing piece 2c of the present invention, as shown in the enlarged view of a portion C in FIG. 3, forms an acute angled slope 12 from the surface to be fixed toward the upper end of the side plate 2b so that the radiating element 8 is edged. It is preferable to dispose it in a place close to the above, because it does not hinder transmission and reception of radio waves.
【0011】本発明の固定具2には、その底面部2a
に、入出力のための給電線路9から導波管への結合を行
う結合器の取り付けや直接に周波数の変換を行うコンバ
ータを取り付けるための導波管13をインサート成形す
れば、組立が簡便となり好ましい。The fixture 2 of the present invention has a bottom surface 2a.
Then, if a waveguide 13 for attaching a coupler for coupling from the feeder line 9 for input / output to the waveguide or a converter for directly converting the frequency is insert-molded, assembly is simplified. preferable.
【0012】[0012]
実施例1 図1に示すように、地導体1には、厚さ0.3mmのア
ルミニウム板を用い、固定具2には、底面部2aと、底
面部2aの対向する2辺に底面部2aから垂直に立ち上
がる側板2bと、側板2bの上端部に設けた内側に突出
する固定片2cを備えた、厚さ1mmのポリプロピレン
樹脂製の成型品で、導波管13をインサート成形したも
のを用い、給電基板6には、厚さ25μmのポリイミド
フィルムに厚さ18μmの銅箔を貼り合わせたフレキシ
ブル銅張り積層フィルムの不要な銅箔をエッチング除去
して、放射素子8と給電線路9を形成したものを用い
た。放射素子8は、正方形のパッチ形状とし一辺の長さ
は、利用周波数の自由空間波長λ0の0.39倍とし
た。また、配列間隔は、自由空間波長λ0の0.91倍
として、素子数は縦16×横24とした。導体板7は、
厚さ0.6mmのアルミニウムとし、スロット10は、
一辺を自由空間波長λ0の0.51倍の正方形の形状を
しており、配列間隔は放射素子と同様にした。また、誘
電体5aおよび誘電体5bとして、厚さ0.3mm、比
誘電率1.1の樹脂発泡体を用いた。このようにして、
図4に示す指向性をもつアンテナが構成できた。Example 1 As shown in FIG. 1, an aluminum plate having a thickness of 0.3 mm was used for a ground conductor 1, and a bottom 2 a and a bottom 2 a on two opposite sides of the bottom 2 a were used for a fixture 2. A 1 mm thick molded article made of a polypropylene resin having a side plate 2b rising vertically from above and a fixing piece 2c protruding inward provided at an upper end portion of the side plate 2b, which is formed by insert-molding the waveguide 13. On the power supply board 6, unnecessary radiating elements 8 and power supply lines 9 were formed by etching and removing unnecessary copper foils of a flexible copper-clad laminate film in which a copper film of 18 μm in thickness was bonded to a polyimide film of 25 μm in thickness. Was used. The radiating element 8 had a square patch shape, and the length of one side was 0.39 times the free space wavelength λ 0 of the used frequency. The arrangement interval was 0.91 times the free-space wavelength λ 0 , and the number of elements was 16 × 24. The conductor plate 7
The slot 10 is made of aluminum having a thickness of 0.6 mm.
One side has a square shape of 0.51 times the free space wavelength λ 0 , and the arrangement interval is the same as that of the radiating element. In addition, a resin foam having a thickness of 0.3 mm and a relative dielectric constant of 1.1 was used as the dielectrics 5a and 5b. In this way,
An antenna having the directivity shown in FIG. 4 was constructed.
【0013】実施例2 図2に示すように、実施例1の固定具2に、厚さ1mm
のABS樹脂製の成型品で、導波管13をインサート成
形したものを用い、その表面に厚さ20μmの無電解銅
めっきによるめっき皮膜4を形成したものを用い、地導
体1に代えた。また、給電基板6は、厚さ50μmのポ
リエチレンテレフタレートフィルムに厚さ50μmのア
ルミニウム箔を貼り合わせたフレキシブル積層フィルム
を用いた。上記以外は、実施例1と同じものを用いた。Embodiment 2 As shown in FIG. 2, the fixture 2 of Embodiment 1 has a thickness of 1 mm.
An ABS resin molded product obtained by insert-molding the waveguide 13 and having a plating film 4 formed by electroless copper plating with a thickness of 20 μm on the surface thereof was used instead of the ground conductor 1. The power supply substrate 6 was a flexible laminated film in which a 50 μm thick polyethylene terephthalate film was bonded to a 50 μm thick aluminum foil. Except for the above, the same one as in Example 1 was used.
【0014】[0014]
【発明の効果】以上に説明したとおり、本発明により、
地導体1を薄型化および軽量化したうえ、組立工程を簡
略化した平面アンテナを提供することができる。As described above, according to the present invention,
It is possible to provide a planar antenna in which the ground conductor 1 is reduced in thickness and weight and the assembly process is simplified.
【図1】本発明の一実施例を示す分解斜視図である。FIG. 1 is an exploded perspective view showing one embodiment of the present invention.
【図2】本発明の他の実施例を示す分解斜視図である。FIG. 2 is an exploded perspective view showing another embodiment of the present invention.
【図3】本発明の一実施例の固定具2の態様を示す斜視
図である。FIG. 3 is a perspective view showing an embodiment of a fixture 2 according to one embodiment of the present invention.
【図4】本発明の一実施例の特性を示す線図である。FIG. 4 is a diagram showing characteristics of one embodiment of the present invention.
【図5】従来例を示す分解斜視図である。FIG. 5 is an exploded perspective view showing a conventional example.
1.地導体 2.固定具 2a.底面部 2b.側板 2c.固定片 4.めっき皮膜 5a,5b.誘電体 6.給電基板 7.導体板 8.放射素子 9.給電線路 10.スロット 11.ネジ 12.斜面 13.導波管 1. Ground conductor 2. Fixture 2a. Bottom part 2b. Side plate 2c. Fixing piece 4. Plating film 5a, 5b. Dielectric 6. Power supply board 7. Conductive plate 8. Radiating element 9. Feeding line 10. Slot 11. Screw 12. Slope 13. Waveguide
───────────────────────────────────────────────────── 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 金丸 喜一 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 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kura Mizugaki, 1150 Goshomiya, Oaza, Shimodate, Ibaraki Prefecture Inside the Goshonomiya Plant of Hitachi Chemical Co., Ltd. (72) Kiichi Kanamaru, 1150 Goshomiya, Oaza, Shimodate, Ibaraki Hitachi Chemical Industry Co., Ltd.
Claims (4)
素子(8)とその放射素子(8)に接続された給電線路(9)と
を形成した給電基板(6)と、誘電体(5b)と、放射素子(8)
に対応する位置にスロット(10)を複数形成した導体板
(7)とを、この順に積層配置した平面アンテナであっ
て、これらの各部品を固定するための固定具(2)とし
て、底面部(2a)と、底面部(2a)の対向する2辺に底面(2
a)から垂直に立ち上がる側板(2b)と、側板(2b)の上端部
に設けた内側に突出する固定片(2c)を備えた固定具(2)
を有することを特徴とする平面アンテナ。A power supply board (6) formed with a ground conductor (1), a dielectric (5a), a plurality of radiating elements (8), and a power supply line (9) connected to the radiating elements (8). And a dielectric (5b) and a radiating element (8)
Conductor plate with multiple slots (10) formed at positions corresponding to
(7) are planar antennas stacked in this order, and as a fixture (2) for fixing these components, a bottom portion (2a) and two opposite sides of the bottom portion (2a). To the bottom (2
A fixture (2) having a side plate (2b) rising vertically from a) and a fixing piece (2c) protruding inward provided at an upper end of the side plate (2b).
A planar antenna comprising:
し、地導体(1)を兼ねることを特徴とする請求項1に記
載の平面アンテナ。2. The planar antenna according to claim 1, wherein a plating film (4) is formed on the entire surface of the fixing tool (2), and also serves as a ground conductor (1).
上端部に向かって、鋭角の斜面(12)を有することを特徴
とする請求項1または2に記載の平面アンテナ。3. The flat antenna according to claim 1, wherein the fixing piece has an inclined surface having an acute angle from a surface to be fixed toward an upper end of the side plate. .
めの導波管(13)をインサート成形したものであることを
特徴とする請求項1〜3のうちいずれかに記載の平面ア
ンテナ。4. The fixing device according to claim 1, wherein the fixing member is formed by insert-molding a waveguide for input and output on a bottom surface portion. A planar antenna as described in Crab.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30021497A JPH11136024A (en) | 1997-10-31 | 1997-10-31 | Plane antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30021497A JPH11136024A (en) | 1997-10-31 | 1997-10-31 | Plane antenna |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH11136024A true JPH11136024A (en) | 1999-05-21 |
Family
ID=17882100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30021497A Pending JPH11136024A (en) | 1997-10-31 | 1997-10-31 | Plane antenna |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH11136024A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7026993B2 (en) | 2002-05-24 | 2006-04-11 | Hitachi Cable, Ltd. | Planar antenna and array antenna |
JP2008252303A (en) * | 2007-03-29 | 2008-10-16 | Toshiba Corp | Antenna device and antenna composite unit |
JP2010166380A (en) * | 2009-01-16 | 2010-07-29 | Mitsubishi Electric Corp | Antenna apparatus |
JP2011044785A (en) * | 2009-08-19 | 2011-03-03 | Mitsubishi Electric Corp | Antenna device |
JP2011044881A (en) * | 2009-08-20 | 2011-03-03 | Mitsubishi Electric Corp | Electromagnetic wave apparatus |
JP2011044784A (en) * | 2009-08-19 | 2011-03-03 | Mitsubishi Electric Corp | Antenna device and method for manufacturing the same |
WO2019058646A1 (en) * | 2017-09-22 | 2019-03-28 | 株式会社フジクラ | Wireless communication module |
-
1997
- 1997-10-31 JP JP30021497A patent/JPH11136024A/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7026993B2 (en) | 2002-05-24 | 2006-04-11 | Hitachi Cable, Ltd. | Planar antenna and array antenna |
JP2008252303A (en) * | 2007-03-29 | 2008-10-16 | Toshiba Corp | Antenna device and antenna composite unit |
JP4564507B2 (en) * | 2007-03-29 | 2010-10-20 | 株式会社東芝 | Antenna device and antenna composite unit |
JP2010166380A (en) * | 2009-01-16 | 2010-07-29 | Mitsubishi Electric Corp | Antenna apparatus |
JP2011044785A (en) * | 2009-08-19 | 2011-03-03 | Mitsubishi Electric Corp | Antenna device |
JP2011044784A (en) * | 2009-08-19 | 2011-03-03 | Mitsubishi Electric Corp | Antenna device and method for manufacturing the same |
US8860630B2 (en) | 2009-08-19 | 2014-10-14 | Mitsubishi Electric Corporation | Antenna apparatus and method for manufacturing the same |
JP2011044881A (en) * | 2009-08-20 | 2011-03-03 | Mitsubishi Electric Corp | Electromagnetic wave apparatus |
WO2019058646A1 (en) * | 2017-09-22 | 2019-03-28 | 株式会社フジクラ | Wireless communication module |
JP2019057896A (en) * | 2017-09-22 | 2019-04-11 | 株式会社フジクラ | Radio communication module |
US11211696B2 (en) | 2017-09-22 | 2021-12-28 | Fujikura Ltd. | Wireless communication module |
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