JPH0362704A - Parabolic antenna - Google Patents
Parabolic antennaInfo
- Publication number
- JPH0362704A JPH0362704A JP19911089A JP19911089A JPH0362704A JP H0362704 A JPH0362704 A JP H0362704A JP 19911089 A JP19911089 A JP 19911089A JP 19911089 A JP19911089 A JP 19911089A JP H0362704 A JPH0362704 A JP H0362704A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- synthetic resin
- electroless plating
- layer
- paint
- 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
- Aerials With Secondary Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、衛星放送受信用等のパラボラアンテナに関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a parabolic antenna for receiving satellite broadcasting and the like.
（従来の技術）
衛星放送受信用のパラボラアンテナは、従来強化不飽和
ポリエステル樹脂に、アルミニウム箔やアルミニウムを
コー１〜したガラス繊維布を積層してプレス成形したも
のや、アルミニウムや鋼をプレス成形したものが用いら
れていた（特開昭５８−１７０１０３号公報、特開昭５
９−２３６０４号公報）。(Prior technology) Parabolic antennas for satellite broadcast reception have conventionally been made by laminating reinforced unsaturated polyester resin with aluminum foil or glass fiber cloth coated with aluminum and then press-molded, or by press-molding aluminum or steel. (Japanese Unexamined Patent Application Publication No. 170103/1983,
9-23604).
また、／Ｉ産性をＮ″１１めろため射出成形法を用いて
、成形品に金属系塗料を塗布したり金属箔を接合したり
、あるいは予め金属箔や金居調フィルムをインサート成
形して製作していた。In addition, in order to reduce the productivity to N''11, injection molding is used to coat the molded product with metallic paint, bond metal foil, or insert mold metal foil or metal foil in advance. It was produced by
（発明が解決しようとする課題）
上記の方法のうちプレス成形の場合は、生産効率を高め
ることができずコストが嵩む難点があり、また射出成形
による場合も、熱可塑性樹脂層に金属箔等が積層されて
いるため、両者の熱膨張係数に差があり、しかも吸温の
係数がｙ（なるため、熱や湿度の履歴を受けることによ
り反りが生し、使用中に所定の曲率を維持できず性能を
低下させることがあった。(Problems to be Solved by the Invention) Among the above methods, press molding has the drawback of not being able to increase production efficiency and increasing costs.Also, when using injection molding, metal foil etc. are used in the thermoplastic resin layer. Because they are laminated, there is a difference in their thermal expansion coefficients, and the coefficient of heat absorption is This could lead to performance degradation.
本発明はこのような状況に鑑みてなされたもので、生産
性が高く、しかも形態安定性に侭れ、かつ長期にわたり
性能の高いパラボラアンテナを提供しようとするもので
ある。The present invention has been made in view of these circumstances, and aims to provide a parabolic antenna that is highly productive, has poor form stability, and has high performance over a long period of time.
（課題を解決するための手段）
すなわち本発明は、上記の課題を解決するためになされ
たもので、その要旨とするところは、パラボラ状に成形
さ４した合成樹脂製のアンテナ本体の少なくとも内表面
に、無電解メッキ層を形成し、さらにこの」二に合成樹
脂塗料による保護層を形成することを特徴とするパラボ
ラアンテナにある。(Means for Solving the Problems) That is, the present invention has been made to solve the above problems, and its gist is that at least the inside of a synthetic resin antenna body formed into a parabolic shape is The parabolic antenna is characterized in that an electroless plating layer is formed on the surface, and a protective layer made of synthetic resin paint is further formed on the surface.
以下、本発明を図面に従って説明するが、第１図は全体
を示しており、第２図はその一部を示している。The present invention will be described below with reference to the drawings, with FIG. 1 showing the whole and FIG. 2 showing a part thereof.
図中１はアンテナ本体で、このアンテナ本体】−はＡ
１３３樹脂、ポリアミド拘脂、ポリカーボネート樹脂、
ポリプロピレン樹脂、ＡＢＳ４１￥Ｊ脂やポリカーボネ
ート樹脂あるいは変性ポリフェニレンエーテル樹脂によ
るポリマーアロイ等の無電解メッキが可能な合成樹脂に
よって成形されている。これらの合成樹脂は射出成形が
可能なため、生産性を−にけることが可能である。In the figure, 1 is the antenna body, and this antenna body】- is A
133 resin, polyamide resin, polycarbonate resin,
It is molded from a synthetic resin that can be electrolessly plated, such as polypropylene resin, ABS41J resin, polycarbonate resin, or a polymer alloy made of modified polyphenylene ether resin. Since these synthetic resins can be injection molded, productivity can be improved.
なお、この合成樹脂には構造形態を安定化するために５
〜４０重量％、特に好ましく１０〜３０重量％の補強用
繊維を混入することができる。この補強用繊維としては
、ガラス繊維、炭素繊維あるいはチタン酸カリウム等の
無機系繊維が好適であるが、有機系繊維を用いてもよい
。In addition, this synthetic resin contains 5 to stabilize the structural form.
Up to 40% by weight, particularly preferably 10 to 30% by weight, of reinforcing fibers can be incorporated. The reinforcing fibers are preferably glass fibers, carbon fibers, or inorganic fibers such as potassium titanate, but organic fibers may also be used.
これらの補強用繊維の太さは、概ねガラス繊維、炭素繊
維は５〜２０、チタン酸カリウムは０．１〜１μｍ、長
さは概ねガラス繊維、炭素繊維は０、 ］、 −１，０
ｎｏ、チタン酸カリウＡ０．０５−１ ｎ＋ｍ程度のも
のを用いるとよい。The thickness of these reinforcing fibers is generally glass fiber, carbon fiber is 5 to 20, potassium titanate is 0.1 to 1 μm, and the length is approximately glass fiber and carbon fiber is 0, ], -1,0
No, potassium titanate A of about 0.05-1 n+m should be used.
図中２は上記アンテナ本体１の全表面に設けた無電解メ
ッキ層であり、導電性の高い銅、ニッケル、銀あるいは
銅−ニッケル２Ｗｊメッキ等の金属が用いられ、その厚
さは０．１〜１．５μ程度である。このような無電解メ
ッキ層２は。2 in the figure is an electroless plating layer provided on the entire surface of the antenna main body 1, and is made of highly conductive metal such as copper, nickel, silver, or copper-nickel 2Wj plating, and its thickness is 0.1 It is about 1.5μ. Such an electroless plating layer 2 is.
一
極めて薄い層であり、ミクロにみると細かいポラス構造
となっているため、驚くへきことにこのポーラス構成で
ありながら信号反則の機能に優れていると共に、熱や湿
度の変化についても遮蔽するようなことがないために反
りが生ずることがなく、しかも後述する保護層の形成に
際して投錨的役割を果して密着性を高めることができる
特徴がある。It is an extremely thin layer, and has a fine porous structure when viewed microscopically. Surprisingly, even though it has a porous structure, it has excellent signal-reduction functions, and also shields against changes in heat and humidity. Since there is no bending, warpage does not occur, and it also has the feature that it can play an anchoring role and improve adhesion when forming a protective layer, which will be described later.
なお、この無電解メッキの方法としては、殻内に用いら
れているような、例えば次の工程からなるものが用いら
れる。Note that this electroless plating method is the same as that used in the shell, and includes, for example, the following steps.
脱脂
エツチング（表面粗化）
キャタライザ
アクセレータ
無電解メッキ
そしてこのような無電解メッキ層２は、図示するように
アンテナ本体１の全表面に設けてもよいが、内表面にだ
け形成してもよい７図中３は合成樹脂塗料による保護層
で、ウレタン系、エポキシ系、アクリル系等の塗料が用
いられるが、使用目的からして耐候性の高い塗料が望ま
しい。なお、この保護層３の厚さは概ね１０〜４０μ程
度とするとよい。そして、この保護ＷＪ３の形成は、ス
プレー法、静電法やデイッピンク′法等によって行われ
る。Degreasing etching (surface roughening) Catalyzer accelerator electroless plating Such an electroless plating layer 2 may be provided on the entire surface of the antenna body 1 as shown in the figure, but it may also be formed only on the inner surface 7 3 in the figure is a protective layer made of synthetic resin paint, and urethane-based, epoxy-based, acrylic-based paints, etc., are used, but a highly weather-resistant paint is desirable considering the purpose of use. Note that the thickness of this protective layer 3 is preferably about 10 to 40 μm. The protective WJ3 is formed by a spray method, an electrostatic method, a dippin' method, or the like.
（実施例） 以下、本発明の実施例について説明する。(Example) Examples of the present invention will be described below.
「アンテナ本体の製作」
ガラス繊維を２０重量％を含有するＡＢＳｓ脂（三菱レ
イヨン社製「タイヤペラ１へＡ Ｂ Ｓ Ｉ）Ｇ−↓２
０」）を用い、射出成形法により直径４５０ｎＷＩ＋で
、はぼ第１−図に示す如きパラボラ状のアンテナ本体を
得た。なおこのときの射出成形の条件としては、ガラス
繊維の浮出しによる肌荒れを防ぐため、樹脂温度、射出
圧力、金型温度を何れも高く、しかも射出速度は速く設
定することが望ましい。"Production of the antenna body" ABSs resin containing 20% by weight of glass fiber (Mitsubishi Rayon Co., Ltd. "ABS I to tire propeller 1") G-↓2
A parabolic antenna body with a diameter of 450 nWI+ as shown in Fig. 1 was obtained by injection molding. As for the injection molding conditions at this time, it is desirable to set the resin temperature, injection pressure, and mold temperature to be high, and to set the injection speed to be high in order to prevent surface roughness due to embossment of the glass fibers.
「無電解メッキの方法」
」二記アンテナ本体の全表面に対し、既知の無電解銅メ
ッキを施し、厚さ０．３μの無電解メッキ層を形成した
。"Method of Electroless Plating" 2. The entire surface of the antenna body was subjected to known electroless copper plating to form an electroless plating layer with a thickness of 0.3 μm.
「保護層の形成」
無電解メッキ層のＬに、ウレタン系塗料を塗装し、厚さ
約２５μの保ｍ ＪＰＩを形成し、パラボラアンテナを
得た。"Formation of protective layer" A urethane paint was applied to L of the electroless plating layer to form a protective JPI with a thickness of about 25 μm to obtain a parabolic antenna.
「性能の評価」
得られたパラボラアンテナを、第１表に示す試験条件に
より性能の評価したところ、同表に示すような好結果が
得られた。"Evaluation of Performance" When the performance of the obtained parabolic antenna was evaluated under the test conditions shown in Table 1, good results were obtained as shown in the table.
第１表
（効 果）
本発明はパラボラ状に成形された合成樹脂製のアンテナ
本体の内表面に、無電解メッキ層が形成されており、さ
らにこの上に合成樹脂塗料による保護層が形成されてい
るので、以下の効果を有する。Table 1 (Effects) In the present invention, an electroless plating layer is formed on the inner surface of a parabolic antenna body made of synthetic resin, and a protective layer of synthetic resin paint is further formed on this layer. Therefore, it has the following effects.
１）合成樹脂の成形品（とりわけ射出成形品）をアンテ
ナ本体に用いているため、大量生産ができコストダウン
が可能であり、また精度の高い曲面が得られる。1) Since a synthetic resin molded product (particularly an injection molded product) is used for the antenna body, mass production is possible and costs can be reduced, and a highly accurate curved surface can be obtained.
２）アンテナの反射面を無電解メッキ層で構成している
ため、生産性が高くしかもアンテナ本体の曲面の精度に
合致した反射面が得られると共に、無電解メッキ層は、
ポーラスな構造になっているため、反りを防止し、かっ
こ＝７
の上に設ける合成樹脂塗料による保護層の密着性が高い
。2) Since the reflective surface of the antenna is composed of an electroless plating layer, it is possible to obtain a reflective surface that has high productivity and matches the precision of the curved surface of the antenna body.
The porous structure prevents warping, and the protective layer made of synthetic resin paint provided on the brackets has high adhesion.
３）反射面が合１曳樹脂塗料の保護層で被覆されている
ため、耐久性が高い。3) High durability as the reflective surface is covered with a protective layer of composite resin paint.
第工図は本発明の一実施例を示す正断面図、第２図は第
１図のＡ部拡大間である。
１・・アンテナ本体
２・無電解メッキ層
３・・・保護層1 is a front sectional view showing an embodiment of the present invention, and FIG. 2 is an enlarged view of section A in FIG. 1. 1. Antenna body 2. Electroless plating layer 3. Protective layer
Claims (3)
体の少なくとも内表面に、無電解メッキ層が形成されて
おり、さらにこの上に合成樹脂塗料による保護層が形成
されていることを特徴とするパラボラアンテナ。(1) An electroless plating layer is formed on at least the inner surface of the parabolic antenna body made of synthetic resin, and a protective layer of synthetic resin paint is further formed on this. parabolic antenna.
で成形されていることを特徴とする請求項第１項記載の
パラボラアンテナ。(2) The parabolic antenna according to claim 1, wherein the antenna body is molded from a synthetic resin containing reinforcing fibers.
なくとも１種の導電性金属からなるものであることを特
徴とする請求項第１項または第２項記載のパラボラアン
テナ。(3) The parabolic antenna according to claim 1 or 2, wherein the electroless plating layer is made of at least one conductive metal such as copper, nickel, or silver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19911089A JPH0362704A (en) | 1989-07-31 | 1989-07-31 | Parabolic antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19911089A JPH0362704A (en) | 1989-07-31 | 1989-07-31 | Parabolic antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0362704A true JPH0362704A (en) | 1991-03-18 |
Family
ID=16402292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19911089A Pending JPH0362704A (en) | 1989-07-31 | 1989-07-31 | Parabolic antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0362704A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0575337A (en) * | 1991-09-12 | 1993-03-26 | Japan Synthetic Rubber Co Ltd | Molding material for antenna reflector |
| CN105177539A (en) * | 2015-08-19 | 2015-12-23 | 中国地质大学（武汉） | Forming manufacturing process for small satellite-borne evolution metal antenna |
-
1989
- 1989-07-31 JP JP19911089A patent/JPH0362704A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0575337A (en) * | 1991-09-12 | 1993-03-26 | Japan Synthetic Rubber Co Ltd | Molding material for antenna reflector |
| CN105177539A (en) * | 2015-08-19 | 2015-12-23 | 中国地质大学（武汉） | Forming manufacturing process for small satellite-borne evolution metal antenna |
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