201128852 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種平面天線技術’尤其涉及—種平面天線及 其製造方法。 【先前技術】 按，近年來電子技術及it技術飛速發展，筆記型電腦 (Notebook)、行動電話等通訊設備，已逐漸成為人們生活工 作中重要的一部分。隨著筆記型電腦技術的逐漸成熟、電腦部 件的更新替換，筆記型電腦亦由初期的品牌單—、外觀呆板、 體積大、功能簡單發展到現在的品牌多、外觀時尚、短小輕薄， 同時加上藍芽、無線上網、集成攝像頭。 筆記型電腦的體積縮小及功能增多，勢必會要求其各部件 在有限的空間内實現其功能特性。平面天線以其體積小、重量 I、波束可控等特點在筆記型電腦中得到廣泛應用。 如台灣專利公開號為200845468之專利揭示了一種薄膜 式天線，、包括塑膠膜、一第一黏膠層、一金屬賴射體層、 一第二黏膠層及—離型紙。該_膜包覆該金屬II射體，第— 黏膠層介於塑膠膜及金屬輕射體層之間，第二黏勝層形成於金 屬輕射體層相對第—黏膠層另―面，離型紙貼㈣第二㈣ 層，在組合於通訊電子產品時，將離型紙撕掉，使得第二㈣ 層貼合於通訊電子產品内。 准田上述1知薄膜式天線貼合於一導體表面時，金屬輕 射體與導體表面之間絕緣性不佳，天線性能不穩定。 【發明内容】 本發明的主要目的係針對上述習知技術存在之缺陷提供 201128852 一種絕緣性好、性能穩定的平面天線及其製造方法。 . _為實現上述目的，本發明平面天線包括一絕緣層、一金屬 ^射豸帛#膠層及—第二背膠層。金屬轄射體設置於絕 緣層頂面’第-背膠層介於絕緣層與金屬輕射體之間並將絕緣 層與金屬輻射體黏接在一起，第二背膠層黏附於所述絕緣層底 面。 本發明平面天線的製造方法包括如下步驟： a.以金屬片沖裁出金屬幸畐射體 • b.以背膠材料裁切出形狀略同於金屬輻射體的第一背膠 層； / c. 將第二背膠層黏貼於絕緣層的底面，將第一背膠層黏貼 於絕緣層的頂面，從而形成絕緣層組合；及 d. 將金屬輻射體黏附於絕緣層組合的頂面，而完成一平面 天線的製造。 综上所述，本發明平面天線藉由絕緣層設置於金屬輻射體 的底面，可以達到隔離絕緣平面天線與其所貼合的表面，穩定 • 平面天線性能之目的。本發明平面天線的製造方法之金屬輕射 體以金屬片沖壓成型而成，其強度大，耐磨損性好，雙面皆可 焊接，後續加工方便，製造成本低。 【實施方式】 為詳細說明本發明之技術内容、所達成的目的及功效，以 • 下茲舉實施例並配合圖式詳細說明。 請參閱第一圖，本發明平面天線100包括一絕緣層1、一 金屬輻射體2、一第一背膠層3及一第二背膠層4。 絕緣層1可由麥拉（Mylar)絕緣片製成；金屬輻射體2 201128852 由向導電率金屬材料製成，本實施财該材料為 背膠層3及第二綱4均為雙面膠。金屬輕射體2=: 緣層1的頂面，第一背膠層3介於絕緣層1與金屬韓射體2之 間並將絕緣層1與金屬輻射體2黏 附於所述絕緣们的底面。 在（帛—背膠層4黏 本發明平面天線1GG的製造方法包括如下步驟： a. 以金屬片沖裁出金屬輕射體2，· b. 以背膠材料裁切出形狀略同於金屬輻射體2的第一背膠 C·將第二背膠層4黏貼於絕緣層1的底面，將第-背膠層 3黏貼於絕緣層i的頂面’從而形成絕緣層組合；及 丄將金屬輻射體2黏附於絕緣層組合的頂面，而完成一平 面天線的製造。 另外，當平面天線100所貼附的通訊設備對應位置有凸出 或者凹陷等結構時，還可以在步驟d之間增加—步驟e， 即冲壓絕緣層組合，以使平面天線i⑼與其所貼附的通訊設備 對應位置之結構相扣持，實現進一步固定平面天線ι〇〇的作 用。 良τ'上所述，本發明平面天線1〇〇藉由絕緣層i設置於金屬 輻射體2的底面，以達到隔離絕緣平面天線1〇〇與其所貼合的 表面，穩定平面天線1〇〇性能之目的且，金屬輻射體2雙面 白可焊接，增加了平面天線丨〇〇的使用靈活性。本發明平面天 線100的製造方法之金屬輻射體2以金屬片沖壓成型而成，其 強度大，耐磨損性好，雙面皆可焊接，後續加工方便，製造成 本低。 【圖式簡單說明】 201128852 第一圖係本發明平面天線之結構示意圖。 【主要元件符號說明】 平面 天線 100 絕緣層 金屬 輻射體 2 第一背膠層 第二 背膠層 4BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planar antenna technology, and more particularly to a planar antenna and a method of fabricating the same. [Prior Art] According to recent advances in electronic technology and IT technology, communication devices such as notebooks and mobile phones have gradually become an important part of people's lives. With the gradual maturity of notebook computer technology and the replacement of computer components, the notebook computer has also developed from the initial brand list, the appearance is rigid, the volume is large, and the function is simple. Nowadays, there are many brands, stylish appearance, short and light, and at the same time Bluetooth, wireless Internet access, integrated camera. The shrinking size and increased functionality of notebook computers will inevitably require their components to achieve their functional characteristics in a limited space. Planar antennas are widely used in notebook computers because of their small size, weight I, and beam controllability. For example, the patent of Taiwan Patent Publication No. 200845468 discloses a film type antenna comprising a plastic film, a first adhesive layer, a metal lacquer layer, a second adhesive layer and a release paper. The film is coated with the metal II emitter, the first adhesive layer is interposed between the plastic film and the metal light emitter layer, and the second adhesive layer is formed on the metal light emitter layer opposite to the first adhesive layer. Type (4) The second (four) layer, when combined with the communication electronics, tears off the release paper so that the second (four) layer fits within the communication electronics. When the above-mentioned film antenna of the above-mentioned field is attached to the surface of a conductor, the insulation between the metal light-emitting body and the surface of the conductor is poor, and the antenna performance is unstable. SUMMARY OF THE INVENTION The main object of the present invention is to provide a planar antenna with good insulation and stable performance and a manufacturing method thereof. In order to achieve the above object, the planar antenna of the present invention comprises an insulating layer, a metal layer, and a second backing layer. The metal nucleus is disposed on the top surface of the insulating layer. The first-backing layer is interposed between the insulating layer and the metal light-emitting body, and the insulating layer is bonded to the metal radiator. The second adhesive layer is adhered to the insulating layer. The bottom of the layer. The manufacturing method of the planar antenna of the present invention comprises the following steps: a. punching out the metal splicing body with a metal sheet; b. cutting the first adhesive layer having the shape slightly the same as the metal radiator with the adhesive material; / c Adhering the second adhesive layer to the bottom surface of the insulating layer, bonding the first adhesive layer to the top surface of the insulating layer to form an insulating layer combination; and d. adhering the metal radiator to the top surface of the insulating layer combination, The fabrication of a planar antenna is completed. In summary, the planar antenna of the present invention is disposed on the bottom surface of the metal radiator by an insulating layer, and can achieve the purpose of stabilizing the performance of the planar antenna by isolating the surface of the insulated planar antenna. The metal light-emitting body of the method for manufacturing a planar antenna of the present invention is formed by stamping a metal sheet, has high strength, good wear resistance, can be welded on both sides, is convenient for subsequent processing, and has low manufacturing cost. [Embodiment] The detailed description of the technical contents, the objects and the effects of the present invention will be described in detail below with reference to the embodiments. Referring to the first figure, the planar antenna 100 of the present invention comprises an insulating layer 1, a metal radiator 2, a first backing layer 3 and a second backing layer 4. The insulating layer 1 can be made of Mylar insulating sheet; the metal radiator 2 201128852 is made of a conductive metal material, and the material of the present invention is that the backing layer 3 and the second sheet 4 are double-sided tape. Metallic light body 2=: top surface of the edge layer 1, the first adhesive layer 3 is interposed between the insulating layer 1 and the metal substrate 2, and the insulating layer 1 and the metal radiator 2 are adhered to the insulating layer Bottom surface. The method for manufacturing the planar antenna 1GG of the present invention includes the following steps: a. punching the metal light projecting body 2 with a metal piece, b. cutting the shape slightly similar to the metal with the adhesive material The first adhesive C of the radiator 2 adheres the second adhesive layer 4 to the bottom surface of the insulating layer 1, and adheres the first adhesive layer 3 to the top surface of the insulating layer i to form an insulating layer combination; The metal radiator 2 is adhered to the top surface of the combination of the insulating layers to complete the manufacture of a planar antenna. In addition, when the corresponding position of the communication device attached to the planar antenna 100 has a convex or concave structure, it can also be in step d. Between the steps - step e, that is, the combination of the stamping insulation layer, so that the plane antenna i (9) and the structure of the corresponding position of the communication device to which it is attached are held together, thereby further fixing the function of the planar antenna ι〇〇. The planar antenna 1 of the present invention is disposed on the bottom surface of the metal radiator 2 by the insulating layer i to achieve the surface of the isolated insulating planar antenna 1 and the surface thereof, and stabilizes the performance of the planar antenna. Body 2 double-sided white solderable The use of the planar antenna 丨〇〇 increases the flexibility of use. The metal radiator 2 of the method for manufacturing the planar antenna 100 of the present invention is formed by stamping a metal sheet, which has high strength, good wear resistance, and can be welded on both sides. The subsequent processing is convenient and the manufacturing cost is low. [Simple description of the drawing] 201128852 The first figure is a schematic diagram of the structure of the planar antenna of the present invention. [Description of main component symbols] Planar antenna 100 Insulation metal radiator 2 First adhesive layer Second back Rubber layer 4