JPH0479403A - Lens antenna forming method - Google Patents
Lens antenna forming methodInfo
- Publication number
- JPH0479403A JPH0479403A JP19104090A JP19104090A JPH0479403A JP H0479403 A JPH0479403 A JP H0479403A JP 19104090 A JP19104090 A JP 19104090A JP 19104090 A JP19104090 A JP 19104090A JP H0479403 A JPH0479403 A JP H0479403A
- Authority
- JP
- Japan
- Prior art keywords
- main body
- lens main
- matching layer
- lens
- lens 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 8
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 abstract description 7
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003989 dielectric material Substances 0.000 abstract description 3
- KPVWDKBJLIDKEP-UHFFFAOYSA-L dihydroxy(dioxo)chromium;sulfuric acid Chemical compound OS(O)(=O)=O.O[Cr](O)(=O)=O KPVWDKBJLIDKEP-UHFFFAOYSA-L 0.000 abstract description 2
- 238000005530 etching Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 229920005672 polyolefin resin Polymers 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
Description
【発明の詳細な説明】 〈産業十の利用分野〉 本発明は、１／ンズアンテづ形成力法に関する。[Detailed description of the invention] 〈Ten industrial application fields〉 TECHNICAL FIELD The present invention relates to a 1/ns antezu forming force method.
〈従来の技術〉
従来から、衛星放送を受信する際に用いられるアンテナ
の−・例として、第１図で示すような形状及び構成を有
するレンズアンテナがある。１なわら、このレンズアン
テナは、いわゆる凸レンズ形状とされた１／ンズ本体１
と、その表面１ａを覆うごとによって電波の表面反射を
防市する整合層２とからノ、ｉ′っている。<Prior Art> As an example of an antenna conventionally used for receiving satellite broadcasting, there is a lens antenna having a shape and configuration as shown in FIG. 1, this lens antenna has a 1/lens main body 1 in the shape of a so-called convex lens.
and a matching layer 2 which prevents surface reflection of radio waves by covering the surface 1a.
そして、このレンズ本体１は誘電体材料を含む樹脂材料
、例えば、ポリオレフィン系樹脂であるポリプロピレン
と誘電体セラミックとの複合材料を成形することによっ
て形成されており、整合層２はレンズ本体１０表面１ａ
に所要の樹脂十Ａネー１をモールドするごとによって形
成されている。The lens body 1 is formed by molding a resin material containing a dielectric material, for example, a composite material of polypropylene, which is a polyolefin resin, and a dielectric ceramic, and the matching layer 2 is formed on the surface 1a of the lens body 10.
It is formed by molding the required amount of resin.
〈発明が解決しよ・うとする課題〉
ところで、前記従来構成のレンズアンテナにおいては、
つぎのよ・うな不都合が生していた。<Problem to be solved by the invention> By the way, in the lens antenna of the conventional configuration,
The following inconvenience occurred.
ずなわら、このレンズアンテナのレンズ本体１がポリオ
レフィン系樹脂からなるものである場合、その表面は無
極性を示すことになるばかりか、この表面には低分子量
物質の析出による脆弱層が存在する、二とになる。さら
（、こまだ、レンズアンテナを構成するレンズ本体１と
整合層２との有する線膨張係数及び弾性率が互いに異な
ることから、その使用時に直射「Ｉ光の照射などを受り
ると、レンズ本体１と整合層２との界面に熱応力が発生
して両者の剥離が起こるごとがある。なお、このような
不都合の発生をｉｉＥるべく、１／ンズ本体１と整金層
２との間に接着剤（図示していない）を塗布することも
考えられるが、この接着剤の塗布厚みが厚くなると、電
波損失が増えてレンズアンテナの利得が低下するという
別の不都合が生してしまう。Of course, if the lens body 1 of this lens antenna is made of polyolefin resin, not only will its surface be non-polar, but there will also be a fragile layer on this surface due to the precipitation of low molecular weight substances. , becomes two. Furthermore, since the linear expansion coefficient and elastic modulus of the lens body 1 and the matching layer 2 that constitute the lens antenna are different from each other, the lens may There are cases where thermal stress is generated at the interface between the main body 1 and the matching layer 2, causing separation between the two.In order to prevent such inconvenience, the 1/2 lens main body 1 and the matching layer 2 are It may be possible to apply an adhesive (not shown) between the two, but if the thickness of this adhesive becomes thicker, another problem arises: radio wave loss increases and the gain of the lens antenna decreases. .
本発明はかかる現状に鑑みて創案されたものであって、
利得の低下を招くことなく、レンズ本体と整合層との密
着性を高めることができ、両者の剥離を有効に防止する
ことが可能なレンズアンテナ形成方法の提供を目的とし
ている。The present invention was created in view of the current situation, and
The object of the present invention is to provide a method for forming a lens antenna, which can increase the adhesion between a lens body and a matching layer without causing a decrease in gain, and can effectively prevent separation of the two.
〈課題を解決するための手段〉
本発明方法は、このような目的を達成するために、レン
ズ本体の表面の密着性を高める物理的もしくは化学的処
理を施したのち、この表面を覆う反射防止用の整合層を
形成することを特徴とするものである。<Means for Solving the Problems> In order to achieve the above object, the method of the present invention applies a physical or chemical treatment to increase the adhesion of the surface of the lens body, and then applies an anti-reflection coating to cover this surface. It is characterized by forming a matching layer for the purpose.
〈実施例〉 以下、本発明方法の実施例を図面に基づいて説明する。<Example> Hereinafter, embodiments of the method of the present invention will be described based on the drawings.
なお、本実施例に従って形成されたレンズアンテナの形
状及び構成については従来例と基本的に異ならないので
、以下、本実施例を第１図に基づいて説明する。Note that the shape and structure of the lens antenna formed according to this embodiment are basically the same as those of the conventional example, and therefore this embodiment will be described below based on FIG. 1.
第１図で示すように、このレンズアンテナは、凸レンズ
状とされたレンズ本体１と、その表面１ａを覆う整合層
２とを飾えている。そして、まず、このレンズ本体１は
、誘電体材料を含む樹脂材料、例えば、ポリオレフィン
系樹脂であるポリプロピレンと誘電体セラミックとから
なる複合材料を成形することによって形成されており、
この形成されたレンズ本体１に対しては、物理的処理、
例えば、クロム酸−硫酸を用いたエツチング処理が施さ
れる。したがっζ、このような物理的処理が施されたレ
ンズ本体１の表面１ａは粗面化されることになり、いわ
ゆるアンカー効果を有することとなる。As shown in FIG. 1, this lens antenna includes a lens body 1 in the shape of a convex lens and a matching layer 2 covering the surface 1a of the lens body 1. First, this lens body 1 is formed by molding a resin material containing a dielectric material, for example, a composite material made of polypropylene, which is a polyolefin resin, and a dielectric ceramic.
This formed lens body 1 is subjected to physical processing,
For example, etching treatment using chromic acid-sulfuric acid is performed. Therefore, ζ, the surface 1a of the lens body 1 subjected to such physical treatment is roughened and has a so-called anchor effect.
そこで、引き続き、このレンズ本体Ｉの表面１ａに所要
の樹脂材料をモールドすることによって整合層２を形成
すると、この整合層２はアンカー効果によってレンズ本
体１の表面１ａに密着することとなる。なお、このレン
ズ本体１の表面１ａを粗面化した際の表面粗さが１００
μｍ以下であれば、レンズアンテナの利得低下量は０．
０１ｔｌＢ以下に過ぎないから、この表面１ａの粗面化
に伴って電波損失が増えるというような問題が生じる恐
れはない。Therefore, if a matching layer 2 is subsequently formed by molding a required resin material on the surface 1a of the lens body I, this matching layer 2 will come into close contact with the surface 1a of the lens body 1 due to the anchor effect. Note that the surface roughness when the surface 1a of this lens body 1 is roughened is 100
If it is less than μm, the amount of gain reduction of the lens antenna is 0.
Since it is only 01 tlB or less, there is no fear that problems such as increased radio wave loss due to the roughening of the surface 1a will occur.
ところで、レンズ本体１と成形後層２との密着性を高め
る方法としては、上述したような物理的処理に限定され
るものではなく、化学的処理を採用してもよい。すなわ
ち、プラズマ処理やオゾン酸化処理などによってレンズ
本体１の表面１ａを親水化して密着性を高めることも可
能である。また、予めレンズ本体１の形成材料にジメチ
ルアミノ系やヒドロキシル系の表面改質材料を練り込ん
で成形すると、成形されたレンズ本体１の表面１ａにＯ
ＨＩが析出することになり、この表面１ａの密着性が高
まることになる。By the way, the method of increasing the adhesion between the lens body 1 and the post-molding layer 2 is not limited to the above-mentioned physical treatment, and chemical treatment may also be employed. That is, it is also possible to make the surface 1a of the lens body 1 hydrophilic by plasma treatment, ozone oxidation treatment, etc. to improve the adhesion. Furthermore, if a dimethylamino-based or hydroxyl-based surface-modifying material is kneaded into the forming material of the lens body 1 in advance and molded, O
HI will precipitate, and the adhesion of this surface 1a will increase.
〈発明の効果〉
以上説明したように、本発明に係るレンズアンテナ形成
方法においては、レンズ本体の表面の密着性を高める物
理的もしくは化学的処理を施したのち、この表面を覆う
反射防止用の整合層を形成するので、利得の低下を招く
ことなく、レンズ本体と整合層との密着性を確実に高め
ることができ、両者の剥離を有効に防止することができ
るという効果が得られる。<Effects of the Invention> As explained above, in the lens antenna forming method according to the present invention, after performing a physical or chemical treatment to increase the adhesion of the surface of the lens body, an anti-reflection coating is applied to the surface of the lens body. Since the matching layer is formed, the adhesion between the lens body and the matching layer can be reliably improved without causing a decrease in gain, and separation of the two can be effectively prevented.
第１図は、本実施例及び従来例に係るレンズアンテナの
形状及び構成を示す説明図である。
図における符号１はレンズ本体、ｌａはその表面、２は
整合層である。FIG. 1 is an explanatory diagram showing the shape and structure of a lens antenna according to this embodiment and a conventional example. In the figure, reference numeral 1 is the lens body, la is the surface thereof, and 2 is the matching layer.
Claims (1)
る物理的もしくは化学的処理を施したのち、この表面（
１ａ）を覆う反射防止用の整合層（２）を形成すること
を特徴とするレンズアンテナ形成方法。(1) After performing a physical or chemical treatment to increase the adhesion of the surface (1a) of the lens body (1), this surface (
1a) A method for forming a lens antenna, comprising forming an antireflection matching layer (2) covering the antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19104090A JPH0479403A (en) | 1990-07-18 | 1990-07-18 | Lens antenna forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19104090A JPH0479403A (en) | 1990-07-18 | 1990-07-18 | Lens antenna forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0479403A true JPH0479403A (en) | 1992-03-12 |
Family
ID=16267889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19104090A Pending JPH0479403A (en) | 1990-07-18 | 1990-07-18 | Lens antenna forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0479403A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08186434A (en) * | 1994-12-28 | 1996-07-16 | Murata Mfg Co Ltd | Manufacture of dielectric lens for antenna |
| WO2000048270A1 (en) * | 1999-02-12 | 2000-08-17 | Tdk Corporation | Lens antenna and lens antenna array |
| US6592788B1 (en) | 1993-06-30 | 2003-07-15 | Murata Manufacturing Co., Ltd. | Method of manufacturing a dielectric lens for an antenna |
| US7301504B2 (en) | 2004-07-14 | 2007-11-27 | Ems Technologies, Inc. | Mechanical scanning feed assembly for a spherical lens antenna |
| JP2011108902A (en) * | 2009-11-19 | 2011-06-02 | Tdk Corp | Coil component |
| JP2022515434A (en) * | 2018-12-28 | 2022-02-18 | サン－ゴバン パフォーマンス プラスティックス コーポレイション | Continuous dielectric constant compatible radome design |
-
1990
- 1990-07-18 JP JP19104090A patent/JPH0479403A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6592788B1 (en) | 1993-06-30 | 2003-07-15 | Murata Manufacturing Co., Ltd. | Method of manufacturing a dielectric lens for an antenna |
| JPH08186434A (en) * | 1994-12-28 | 1996-07-16 | Murata Mfg Co Ltd | Manufacture of dielectric lens for antenna |
| WO2000048270A1 (en) * | 1999-02-12 | 2000-08-17 | Tdk Corporation | Lens antenna and lens antenna array |
| US7301504B2 (en) | 2004-07-14 | 2007-11-27 | Ems Technologies, Inc. | Mechanical scanning feed assembly for a spherical lens antenna |
| JP2011108902A (en) * | 2009-11-19 | 2011-06-02 | Tdk Corp | Coil component |
| JP2022515434A (en) * | 2018-12-28 | 2022-02-18 | サン－ゴバン パフォーマンス プラスティックス コーポレイション | Continuous dielectric constant compatible radome design |
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