JPH06120727A - Circular polarization antenna device and manufacture thereof - Google Patents
Circular polarization antenna device and manufacture thereofInfo
- Publication number
- JPH06120727A JPH06120727A JP29080992A JP29080992A JPH06120727A JP H06120727 A JPH06120727 A JP H06120727A JP 29080992 A JP29080992 A JP 29080992A JP 29080992 A JP29080992 A JP 29080992A JP H06120727 A JPH06120727 A JP H06120727A
- Authority
- JP
- Japan
- Prior art keywords
- circularly polarized
- flat plate
- laminated structure
- resin
- antenna
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、円偏波を利用するレー
ダや衛星放送、衛星通信用等の円偏波アンテナ装置及び
その製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circularly polarized antenna device for circularly polarized waves for radar, satellite broadcasting, satellite communication, etc., and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】本出願人より、この種の円偏波アンテナ
装置の基本構成が特開平２−１８９００８号や実開平３
−１１５４１３号で提案されている。2. Description of the Related Art The applicant of the present invention has disclosed the basic construction of a circularly polarized antenna device of this type in Japanese Patent Application Laid-Open No. 2-189008 and Japanese Utility Model Publication No.
It is proposed in No. 115413.
【０００３】図６及び図７で円偏波アンテナ装置の従来
構造を説明する。これらの図において、１０は第１の円
形金属平板、１１は第２の円形金属平板であり、これら
により送受信電波の波長に比べて間隔の狭い平行金属平
板（平行導体平板）が構成される。そして、平板１０,
１１の外周縁を短絡、密閉する如く円形金属リング１２
が取り付けられ、これらにより内部空間を有する偏平な
円筒体が構成されることになる。A conventional structure of a circularly polarized antenna device will be described with reference to FIGS. 6 and 7. In these figures, 10 is a first circular metal flat plate, 11 is a second circular metal flat plate, and these constitute a parallel metal flat plate (parallel conductor flat plate) having a narrower interval than the wavelength of transmitted and received radio waves. And the flat plate 10,
Circular metal ring 12 that shorts and seals the outer peripheral edge of 11
Are attached to form a flat cylindrical body having an internal space.
【０００４】第１の円形金属平板１０の中央には中央給
電用穴１３が形成され、第２の円形金属平板１１には多
数の***１４が形成されている。中央給電用穴１３には
給電用同軸線路１６の給電端部が嵌められ、この給電用
同軸線路１６の芯線１７の延長部分からなる棒状のプロ
ーブ１７Ａが第１及び第２の金属平板１０，１１間の空
間に突出している。同軸線路１６の外側導体１８は第１
の平板１０に接続されている。A central feeding hole 13 is formed in the center of the first circular metal flat plate 10, and a large number of small holes 14 are formed in the second circular metal flat plate 11. A feeding end portion of a feeding coaxial line 16 is fitted in the central feeding hole 13, and a rod-shaped probe 17A formed by an extension portion of a core wire 17 of the feeding coaxial line 16 has first and second metal flat plates 10 and 11. It projects into the space between. The outer conductor 18 of the coaxial line 16 is the first
Connected to the flat plate 10.
【０００５】円偏波素子アンテナとしてはヘリカルアン
テナ２０が使用され、ヘリカル(螺旋形状)を構成する導
線の末端部に形成された直線状の給電用結合部２１を、
***１４に嵌合した誘電体２２に挿通することによって
支持される。A helical antenna 20 is used as a circularly polarized element antenna, and a linear feeding coupling portion 21 formed at the end portion of a conductive wire forming a helical shape is used.
It is supported by being inserted into the dielectric 22 fitted in the small hole 14.
【０００６】上記従来構成において、同軸線路１６の給
電端のプローブ１７Ａより供給された給電電力は、平板
１０,１１からなる平行金属平板の内部空間を半径方向
に進行するにつれて逐次ヘリカルアンテナ２０の給電用
結合部２１に結合吸収され、***１４を通って平板１１
の外側に抜け出してヘリカルアンテナ２０を励振する。In the above-mentioned conventional structure, the power supplied from the probe 17A at the power feeding end of the coaxial line 16 is successively fed to the helical antenna 20 as it travels radially in the inner space of the parallel metal flat plate composed of the flat plates 10 and 11. Is absorbed by the connecting portion 21 for the flat plate 11 through the small hole 14.
And then the helical antenna 20 is excited.
【０００７】[0007]
【発明が解決しようとする課題】ところで、上記従来の
円偏波アンテナ装置の製造を考慮した場合、円偏波素子
アンテナとしてのヘリカルアンテナ２０を多数作製し、
かつ多数のヘリカルアンテナを誘電体２２を介し第２の
円形金属平板１１の多数の***１４に差し込む作業が必
要であり、製造組立に手間がかかる問題点があった。By the way, in consideration of the manufacture of the conventional circularly polarized wave antenna device, a large number of helical antennas 20 as circularly polarized wave element antennas are manufactured,
In addition, it is necessary to insert a large number of helical antennas into a large number of small holes 14 of the second circular metal flat plate 11 via the dielectric 22, which is a problem in that manufacturing and assembling are troublesome.
【０００８】本発明は、上記の点に鑑み、円偏波素子ア
ンテナの製造及び平行導体平板に対する円偏波素子アン
テナの装着の問題を解決し、製造組立の容易で量産性に
優れた円偏波アンテナ装置及びその製造方法を提供する
ことを目的とする。In view of the above points, the present invention solves the problems of manufacturing a circularly polarized wave element antenna and mounting the circularly polarized wave element antenna on a parallel conductor plate, and makes it easy to manufacture and assemble and has excellent mass productivity. An object of the present invention is to provide a wave antenna device and a manufacturing method thereof.
【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
に、本発明の円偏波アンテナ装置は、導体箔又は膜と樹
脂との積層構造体でヘリカル部分を有する円偏波素子ア
ンテナを成形し、該円偏波素子アンテナの給電用結合部
を電波の波長に比べて間隔の狭い平行導体平板内に突出
させた構成としている。In order to achieve the above object, a circularly polarized wave antenna device of the present invention forms a circularly polarized wave element antenna having a helical portion in a laminated structure of conductor foil or film and resin. However, the feeding portion of the circularly polarized element antenna is configured to project into a parallel conductor flat plate whose interval is narrower than the wavelength of radio waves.
【００１０】また、本発明の円偏波アンテナ装置の製造
方法は、導体箔又は膜と樹脂との積層構造体の平板をプ
レス加工してヘリカル部分を有する円偏波素子アンテナ
を成形し、該円偏波素子アンテナの給電用結合部を電波
の波長に比べて間隔の狭い平行導体平板内に突出させる
工程を備えている。In the method for manufacturing a circularly polarized wave antenna device of the present invention, a flat plate of a laminated structure of a conductor foil or film and a resin is pressed to form a circularly polarized wave element antenna having a helical portion. The method includes the step of projecting the power feeding coupling portion of the circular polarization element antenna into a parallel conductor flat plate whose interval is narrower than the wavelength of radio waves.
【００１１】[0011]
【作用】本発明においては、ヘリカル部分を有する円偏
波素子アンテナを、導体箔又は膜と樹脂との積層構造体
の成形（プレス成形等）により、一度に多数作製でき、
円偏波素子アンテナの製造の手間を大幅に削減すること
ができる。また、多数の円偏波素子アンテナを一体に成
形した積層構造体を平行導体平板を構成する部分に重ね
て円偏波素子アンテナの給電用結合部を平行導体平板内
に突出させることで、多数の円偏波素子アンテナの平行
導体平板に対する装着を同時に実行できる。In the present invention, a large number of circularly polarized element antennas having a helical portion can be manufactured at once by molding (press molding, etc.) of a laminated structure of a conductor foil or film and a resin.
The time and effort required for manufacturing the circular polarization element antenna can be significantly reduced. In addition, by stacking a laminated structure in which a large number of circularly polarized wave element antennas are integrally formed on the portion forming the parallel conductor flat plate and projecting the feeding coupling part of the circularly polarized wave element antenna into the parallel conductor flat plate, The circular polarization element antenna can be mounted on the parallel conductor plate at the same time.
【００１２】[0012]
【実施例】以下、本発明に係る円偏波アンテナ装置及び
その製造方法の実施例を図面に従って説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a circularly polarized antenna device and a manufacturing method thereof according to the present invention will be described below with reference to the drawings.
【００１３】図１乃至図４で本発明の第１実施例を説明
する。これらの図において、１は送受信電波の波長に比
べて間隔の狭い円形の平行導体平板として機能する円形
導波路であり、１Ａは第１の円形金属平板部、１Ｂは第
２の円形金属平板部、１Ｃはそれらの外周縁部分を短絡
する側壁部であり、これらにより内部空間を有する偏平
な筒体が構成されることになる。第２の円形金属平板部
１Ｂには***２が多数形成されている。第１の円形金属
平板部１Ａの中央には中央給電用穴３が形成され、該中
央給電用穴３には給電用同軸線路１６の給電端部が嵌め
られ、この給電用同軸線路１６の芯線の延長部分からな
る棒状のプローブ１７Ａ（周囲は誘電体で覆われていて
もよい）が円形導波路１の内部空間に突出している。同
軸線路１６の外側導体１８は第１の平板部１Ａに接続さ
れている。A first embodiment of the present invention will be described with reference to FIGS. In these figures, 1 is a circular waveguide that functions as a circular parallel conductor flat plate having a narrower interval than the wavelength of transmitted / received radio waves, 1A is a first circular metal flat plate portion, and 1B is a second circular metal flat plate portion. 1C is a side wall portion that short-circuits the outer peripheral edge portions thereof, and these constitute a flat cylindrical body having an internal space. A large number of small holes 2 are formed in the second circular metal flat plate portion 1B. A central feeding hole 3 is formed in the center of the first circular metal flat plate portion 1A, and a feeding end portion of a feeding coaxial line 16 is fitted in the central feeding hole 3 and a core wire of the feeding coaxial line 16 is fitted. A rod-shaped probe 17 </ b> A (which may be covered with a dielectric material) formed of an extended portion of the above protrudes into the internal space of the circular waveguide 1. The outer conductor 18 of the coaxial line 16 is connected to the first flat plate portion 1A.
【００１４】円偏波素子アンテナ４は、ヘリカル部分５
及びその末端部に形成された直線状の給電用結合部６を
有するものであり、図２乃至図４に示す順序で作製され
る。The circular polarization element antenna 4 has a helical portion 5
And a linear power feeding coupling portion 6 formed at its end portion, and are manufactured in the order shown in FIGS. 2 to 4.
【００１５】まず、図２に示すような銅等の金属箔（又
は膜）８と樹脂９との積層構造体の平板３０を用意し、
この平板３０に図３のような円偏波素子アンテナ４のも
とになる螺旋状のパターン３１を形成するとともに、該
パターン３１に沿って切り込み溝３２を入れる。First, as shown in FIG. 2, a flat plate 30 having a laminated structure of a metal foil (or film) 8 such as copper and a resin 9 is prepared,
A spiral pattern 31 as a base of the circular polarization element antenna 4 as shown in FIG. 3 is formed on the flat plate 30, and a cut groove 32 is formed along the pattern 31.
【００１６】次に、図４のように、プレス加工工程にお
いてプレス金型３３Ａ，３３Ｂにて積層構造体の平板を
挟んでプレスしてヘリカル部分５及び直線状の給電用結
合部６を有する円偏波素子アンテナ４を同時に多数個作
製する。この場合、形成されたヘリカル部分５は螺旋テ
ーパー状であって、末端に向かって螺旋径が小さくなる
ものであり、ヘリカル部分５の先端部分は成形時に樹脂
のみで形成された円筒部３４につながっている（樹脂の
みの円筒部３４を作製するために図３の如く螺旋状のパ
ターン３１の周囲に樹脂のみの領域Ｅを設けてお
く。）。従って、各円偏波素子アンテナ４は金属箔（又
は膜）と樹脂の積層構造をもち、積層構造体の平板のま
ま残った平板部３０Ａに対して円筒部３４を介し一体に
つながっており、相互の位置関係は定まっている。Next, as shown in FIG. 4, in the press working step, a flat plate of the laminated structure is sandwiched between press dies 33A and 33B and pressed to form a circle having a helical portion 5 and a linear power feeding coupling portion 6. A large number of polarization element antennas 4 are manufactured at the same time. In this case, the formed helical portion 5 has a spiral taper shape, and the spiral diameter decreases toward the end, and the tip portion of the helical portion 5 is connected to the cylindrical portion 34 formed of only resin during molding. (A resin-only region E is provided around the spiral pattern 31 as shown in FIG. 3 in order to manufacture the resin-only cylindrical portion 34.). Therefore, each circular polarization element antenna 4 has a laminated structure of metal foil (or film) and resin, and is integrally connected to the flat plate portion 30A of the laminated structure which remains as a flat plate through the cylindrical portion 34, The mutual positional relationship is fixed.
【００１７】このようにして多数同時に円偏波素子アン
テナ４を成形した積層構造体４０を図１のように前記円
形導波路１上に載置し、その内部に向けて各***２から
各円偏波素子アンテナ４の給電用結合部６を突出させ、
さらに樹脂製レイドーム４１を嵌着することで円偏波ア
ンテナ装置が完成する。A laminated structure 40, in which a large number of circular polarization element antennas 4 are simultaneously formed in this manner, is placed on the circular waveguide 1 as shown in FIG. 1, and each circle from each small hole 2 is directed toward the inside. By projecting the feeding coupling portion 6 of the polarization element antenna 4,
Further, the circularly polarized antenna device is completed by fitting the resin radome 41.
【００１８】上記第１実施例によれば、多数の円偏波素
子アンテナ４を同時にかつ相互の位置関係が定まった状
態で作製でき、各円偏波素子アンテナ４の円形導波路１
への装着作業も円偏波素子アンテナ４を成形後の積層構
造体４０を円形導波路１上に載置固定すれば良く、製造
組立が極めて容易となり、量産性の大幅改善を図ること
ができる。なお、この第１実施例の場合、円偏波素子ア
ンテナとなる螺旋状のパターン以外は金属箔（又は膜）
８を省略できる。According to the first embodiment described above, a large number of circular polarization element antennas 4 can be manufactured simultaneously and in a state where the mutual positional relationship is fixed, and the circular waveguide 1 of each circular polarization element antenna 4 can be manufactured.
It is sufficient to mount the laminated structure 40 after the circularly polarized element antenna 4 is formed on the circular waveguide 1 and fix it to the circular waveguide 1, which makes the manufacturing and assembling extremely easy and greatly improves the mass productivity. . In addition, in the case of the first embodiment, a metal foil (or a film) is used except for the spiral pattern which becomes the circularly polarized element antenna.
8 can be omitted.
【００１９】図５は本発明の第２実施例を示す。この場
合、円偏波素子アンテナ４を成形後の積層構造体４０の
平板部３０Ａが銅等の金属箔（又は膜）８を有している
ことを利用して、該平板部３０Ａを円形導波路１の第２
の円形金属平板に兼用している。但し、第２の円形金属
平板の穴４２は前述の第１実施例における***に比べて
大きくなるが、その穴４２から漏洩する電波の割合より
も円偏波素子アンテナ４の給電用結合部６を励振する電
波の割合の方が断然多く、実用上は問題とならない。そ
の他の構成は前述の第１実施例と同様である。FIG. 5 shows a second embodiment of the present invention. In this case, by utilizing the fact that the flat plate portion 30A of the laminated structure 40 after the circular polarization element antenna 4 is formed has the metal foil (or film) 8 of copper or the like, the flat plate portion 30A is circularly guided. Second of waveguide 1
Also used as a circular metal flat plate. However, although the hole 42 of the second circular metal flat plate is larger than the small hole in the first embodiment described above, the feeding coupling portion 6 of the circular polarization element antenna 4 is larger than the ratio of the electric wave leaking from the hole 42. The ratio of the electric wave that excites is much larger, and it is not a problem in practical use. The other structure is similar to that of the first embodiment.
【００２０】なお、第１及び第２実施例において、ヘリ
カル部分及び給電用結合部を有する円偏波素子アンテナ
を成形後、さらに熱間鍛造等の工程で給電用結合部の長
さを引き伸ばす加工を施してもよい。また、その引き伸
ばす加工を施した後にすべての円偏波素子アンテナが同
じ強さに励振されるように、各素子アンテナの結合部を
所定の長さに切断する工程を入れる場合がある。In the first and second embodiments, after the circularly polarized element antenna having the helical portion and the feeding coupling portion is molded, a process of further extending the length of the feeding coupling portion in a process such as hot forging. May be given. Further, there is a case where a process of cutting the coupling portion of each element antenna into a predetermined length is included so that all the circularly polarized element antennas are excited to the same strength after being subjected to the stretching process.
【００２１】また、円形導波路を構成する円形平行導体
平板部及び側壁部は、金属板の他、樹脂等に導体箔、導
体膜を設けた構造であってもよい。The circular parallel conductor flat plate portion and the side wall portion forming the circular waveguide may have a structure in which a conductor foil or a conductor film is provided on a resin or the like in addition to a metal plate.
【００２２】[0022]
【発明の効果】以上説明したように、本発明によれば、
円偏波素子アンテナの製造及び平行導体平板に対する円
偏波素子アンテナの装着を極めて容易に実行でき、量産
性の大幅改善を図ることができる。As described above, according to the present invention,
The manufacture of the circularly polarized element antenna and the mounting of the circularly polarized element antenna on the parallel conductor plate can be performed very easily, and the mass productivity can be greatly improved.
【図１】本発明に係る円偏波アンテナ装置の第１実施例
を示す半断面図である。FIG. 1 is a half sectional view showing a first embodiment of a circularly polarized wave antenna device according to the present invention.
【図２】第１実施例において円偏波素子アンテナの製造
に際して用いる積層構造体の平板を示す正断面図であ
る。FIG. 2 is a front sectional view showing a flat plate of a laminated structure used in manufacturing a circularly polarized element antenna in the first example.
【図３】積層構造体の平板上に形成された螺旋状のパタ
ーンを示す平面図である。FIG. 3 is a plan view showing a spiral pattern formed on a flat plate of a laminated structure.
【図４】円偏波素子アンテナを積層構造体に成形するた
めのプレス工程を説明する断面図である。FIG. 4 is a cross-sectional view illustrating a pressing process for forming a circularly polarized element antenna into a laminated structure.
【図５】本発明に係る円偏波アンテナ装置の第２実施例
を示す半断面図である。FIG. 5 is a half sectional view showing a second embodiment of the circularly polarized wave antenna device according to the present invention.
【図６】従来の円偏波アンテナ装置を示す平面図であ
る。FIG. 6 is a plan view showing a conventional circularly polarized wave antenna device.
【図７】図６のＶＩＩ−ＶＩＩ断面図である。7 is a sectional view taken along line VII-VII in FIG.
１ 円形導波路 １Ａ，１Ｂ 円形金属平板部 ２ *** ３ 中央給電用穴 ４ 円偏波素子アンテナ ５ ヘリカル部分 ６ 給電用結合部 ８ 金属箔 ９ 樹脂 １６ 給電用同軸線路 ３０ 平板 ３１ パターン ３２ 切り込み溝 ３３Ａ，３３Ｂ プレス金型 ３４ 円筒部 ４０ 積層構造体 ４１ レイドーム 1 Circular Waveguide 1A, 1B Circular Metal Flat Plate 2 Small Hole 3 Central Feeding Hole 4 Circular Polarizing Element Antenna 5 Helical Part 6 Feeding Coupling 8 Metal Foil 9 Resin 16 Feeding Coaxial Line 30 Flat Plate 31 Pattern 32 Notch Groove 33A , 33B Press mold 34 Cylindrical part 40 Laminated structure 41 Radome
Claims (3)
リカル部分を有する円偏波素子アンテナを成形し、該円
偏波素子アンテナの給電用結合部を電波の波長に比べて
間隔の狭い平行導体平板内に突出させたことを特徴とす
る円偏波アンテナ装置。1. A circularly polarized element antenna having a helical portion is formed of a laminated structure of a conductor foil or film and a resin, and a feeding coupling portion of the circularly polarized element antenna has an interval compared to a wavelength of radio waves. A circularly polarized wave antenna device characterized by being projected into a narrow parallel conductor flat plate.
体平板の一方を兼ねている請求項１記載の円偏波アンテ
ナ装置。2. The circularly polarized wave antenna device according to claim 1, wherein the flat plate portion of the laminated structure also serves as one of the parallel conductor flat plates.
板をプレス加工してヘリカル部分を有する円偏波素子ア
ンテナを成形し、該円偏波素子アンテナの給電用結合部
を電波の波長に比べて間隔の狭い平行導体平板内に突出
させることを特徴とする円偏波アンテナ装置の製造方
法。3. A circularly polarized element antenna having a helical portion is formed by pressing a flat plate of a laminated structure of a conductor foil or a film and a resin, and a power feeding coupling portion of the circularly polarized element antenna is formed by a radio wave. A method for manufacturing a circularly polarized wave antenna device, which comprises projecting into a parallel conductor flat plate having an interval narrower than a wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29080992A JPH06120727A (en) | 1992-10-05 | 1992-10-05 | Circular polarization antenna device and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29080992A JPH06120727A (en) | 1992-10-05 | 1992-10-05 | Circular polarization antenna device and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06120727A true JPH06120727A (en) | 1994-04-28 |
Family
ID=17760767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29080992A Withdrawn JPH06120727A (en) | 1992-10-05 | 1992-10-05 | Circular polarization antenna device and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06120727A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6046707A (en) * | 1997-07-02 | 2000-04-04 | Kyocera America, Inc. | Ceramic multilayer helical antenna for portable radio or microwave communication apparatus |
-
1992
- 1992-10-05 JP JP29080992A patent/JPH06120727A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6046707A (en) * | 1997-07-02 | 2000-04-04 | Kyocera America, Inc. | Ceramic multilayer helical antenna for portable radio or microwave communication apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000104 |