201017976 九、發明說明： 【發明所屬之技術領域】 本發明係有關於一種天線結構其及製作方法，尤指一 種雙層陶瓷圓極化天線結構及其製作方法。 【先前技術】 隨著通訊技術的發展，各種應用無線通訊技術之電子 產品相繼誕生，例如手機、無線上網裝置、個人數位助理 ❹ （Personal Digital Assistant ’ PDA)等等。而消費者對該些 無線通訊裝置之效能、外觀設計及尺寸大小之要求亦不斷 增加，以行動電話為例，其收訊頻率由單頻、雙頻，發展 至三頻、四頻，並且消費者要求行動電話之外觀造型流 新穎，同時具有尺寸小、重量輕，便於攜帶之特性。 再者，目前因為衛星數位音訊廣播服務（Satemte Digital Audio Radio Service，SDARS)在接收上有較佳的音 訊品質，並且有較多的電台可使用，所以衛星數位音訊廣 ❿播服務（SDARS)於美國備受歡迎。目前衛星數位音訊廣 播服務（SDARS)頻段Μ㈣統業麵組成，分別為 S丽S及ΧΜ，其制於衛星數位音訊 的頻帶各半。 =外：目前使用於衛星數位音訊廣播服務（sdars) 的天線大多為「單層陶甍圓極化天線」或是「在單層陶究 _化天線上貼上泡綿再加上銅落。然而，習知單層陶£ 圓極化天線在天_性上的最高增趟（ζ_㈤）略 =圓極化天線貼上泡綿後容易受擠摩而變 形，所以電性上呈現不穩定狀態。因此，基於腦仍及 6 201017976 XM兩家合併後的頻寬及增益值皆增加，因此 的天線來達到相對應的頻寬及增益值。 & 本發明人#感上述缺失之可改善，且依據多年 來伙事此方面之相關經驗，悉心觀察且研究之， 風 理之運用，而提出—種設計合理且有效改善上述缺失 發明。 、不 【發明内容】201017976 IX. Description of the Invention: [Technical Field] The present invention relates to an antenna structure and a method of fabricating the same, and more particularly to a double-layer ceramic circularly polarized antenna structure and a method of fabricating the same. [Prior Art] With the development of communication technologies, various electronic products using wireless communication technologies have been born, such as mobile phones, wireless Internet devices, personal digital assistants (PDAs), and the like. Consumers' requirements for the performance, design and size of these wireless communication devices are also increasing. Taking mobile phones as an example, the receiving frequency is from single frequency and dual frequency to tri-band and quad-band, and consumers. The appearance of the mobile phone is required to be novel, and at the same time, it has the characteristics of small size, light weight and portability. Furthermore, because the Satemte Digital Audio Radio Service (SDARS) has better audio quality in reception and more radio stations are available, the Satellite Digital Audio Broadcasting Service (SDARS) The United States is popular. At present, the satellite digital audio broadcasting service (SDARS) frequency band (4) is composed of S, S and S, which are respectively used in the frequency band of satellite digital audio. = outside: Most of the antennas currently used in satellite digital audio broadcasting services (sdars) are "single-layer ceramic dome-polarized antennas" or "single-layered ceramics on the single-layer ceramics. However, the highest increase in the sky-sexuality of the conventional single-layered circularly polarized antenna (ζ_(5)) is slightly = the circularly polarized antenna is easily deformed by extrusion after being attached to the foam, so it is electrically unstable. Therefore, based on the brain and 6 201017976 XM, the combined bandwidth and gain values are increased, so the antenna reaches the corresponding bandwidth and gain value. & The present inventors can feel that the above-mentioned missing can be improved, And based on the relevant experience of this aspect of the faculty for many years, carefully observe and study the application of the wind, and propose a reasonable design and effectively improve the above-mentioned missing inventions.
本發明係提供一種雙層陶瓷圓極化天線結構及 方法，其具有下列主要目的： 、 (1)採雙層陶瓷圓極化天線方式接收圓極化衛星 位音訊廣播服務（SDARS)訊號，以達到最佳的收訊效果。 (2 )增加電性的穩定性。 ^ (3 )具有較大的頻寬（Bandwidth )、較佳的最古辦兴 值（Zenith Gain )、及有很好的軸比頻寬（The invention provides a double-layer ceramic circularly polarized antenna structure and method, which has the following main purposes: (1) receiving a circularly polarized satellite bit audio broadcasting service (SDARS) signal by adopting a double-layer ceramic circularly polarized antenna method, Achieve the best reception results. (2) Increase the stability of electrical properties. ^ (3) has a larger bandwidth (Bandwidth), a better oldest value (Zenith Gain), and a good axial ratio (
Bandwidth) ° 為了解決上述技術問題，根據本發明之第—種 提供一種雙層陶瓷圓極化天線結構，其包括：— 案 * 一第一‘硬質 介電本體、一第一輻射金屬層、一接地金屬層、一 ^ 入接腳、一第二硬質介電本體、一第二輻射金屬層天線二 黏著元件。其中，該第一硬質介電本體係具有及^ 第一輻射金屬層係形成於該第一硬質介電本賤之^ 友 該接地金屬層係形成於該第一硬質介電本體夕又面 .. 、下表面。該 天線潰入接腳係穿透該第一硬質介電本體之皆^ 牙孔，其中該In order to solve the above technical problem, the invention according to the first aspect of the present invention provides a double-layer ceramic circularly polarized antenna structure, comprising: - a first 'hard dielectric body, a first radiating metal layer, one a grounding metal layer, a soldering pin, a second hard dielectric body, and a second radiating metal layer antenna. The first hard dielectric system has a first radiant metal layer formed on the first hard dielectric layer. The ground metal layer is formed on the first hard dielectric body. . ,lower surface. The antenna break-in pin penetrates the hole of the first hard dielectric body, wherein the antenna
天線潰入接腳的頂端係固定於該第一硬質介你， T 、電本體的卜The top of the antenna breaks into the pin is fixed to the first hard medium, T, the body of the electric body
方，並且該天線潰入接腳的底端係從該第—滿辦a J 更吳介電本體 7 201017976 之下表面延伸而出。該第二硬質介電本體係設置於該第一 硬質介電本體的上方。該第二輻射金制柳成於該第二 硬質介電本社上表面。絲著元件係設置於該第一輻射 金屬層及該第二硬質介電本體之間，以使得該第〆硬質介 電本體及該第二硬質介電本體相互叠合在一起。 為了解決上述技術問題，根據本i明之第一種方案， 提供-種雙層陶-顏極化天線結構的製作方法，其包括下 驟：首先’分別成形—第―轄射金屬層及〆接地金屬 曰：-第-硬質介電本體之上表面及下表面；接著，透過 -模，士欠體以評估一天線潰入接腳的設置位置及所能夠產 值（ZenithGain)，然後將該第一硬質介電本 二:孔’並且將該天線潰人接腳穿透該第一硬質介 孔，其中該天線潰人接腳的頂端係固定於該第 二；| f本體的上方，並且該天線潰人接腳的底端係從 二®所^介電本體之下表面延伸而出；然後，提供一第 ❹ 二：體’並且將一第二輻射金屬層形成於該第二 射之上表面；接下來，透過-設置於該第-輻 笛三第二硬質介電本體之間黏著元件，以使得該 4 二電a本體及該第二硬質介電本體相互疊合在一 、H’3周即該雙層陶究圓極化天線結構至〆預定頻段， 以達到使用者所需要的使用頻段。 本發明的設計中，我們採用了雙層陶瓷結構 介電本體及該第二硬質介電本體），並且利用 質;電本體電本體)與下層陶究(該第二硬 始^ 震（ nce)的方式，使得本發明的天 …又…W夠落在衛星數位音訊廣播服務（SDARS)頻 8 201017976 ▼上。上層陶瓷只有單面電極面（該第二輻射金屬層）， 且中間利用貼膠（該黏著元件）將上層陶£(該第〜辟f ^丨電本肢）固定在下層陶瓷（該第二硬質介電本體）貝 使本發明的天線能夠得到較佳的穩定性。由於雙層陶’ ^一(該第一硬質介電本體及該第二硬質介電本體）之間ιί 穩疋性佳，所以本發明能夠增加電性的穩定性 念 較小）0 ”邮現象 再者，利用上層電極面（該第一輻射金屬層）及 • 電極面（該接地金屬層），我們可以將阻抗值修正，達到= ，匹配。此外，因為本發明的陶瓷結構固定，匹配值也= 容易達成，不易有太大的變化，所以本發明所成形的結才^ 具有較大的頻寬（Bandwidth)、較佳的最高增益值ίζ ㈣、及錄好__寬㈤猶iG 且非常適用於圓極化天線。 為了能更進一步瞭解本發明為達成預定目的所採取之 技術、手段及功效，請參閱以下有關本發明之詳細說明與 ❹ 附圖，相信本發明之目的、特徵與特點，當可由此得一深 入且具體之暸解，然而所附圖式僅提供參考與說明用，並 非用來對本發明加以限制者。 【實施方式】 請參閱第一 Α圖至第二Β圖所示，本發明係提供一種 雙層陶瓷圓極化天線結構，其包括：一第一硬質介電本體 1、一第一輻射金屬層2、一接地金屬層3、一天線潰入 接腳4、一第二硬質介電本體5、一第二輻射金屬層6、 及一黏著元件7。 9 201017976 其中，該第一硬質介電本體1係可為陶瓷材料或絕緣 : 材料，並且該第一硬質介電本體1係具有一穿孔1 0。此 外，該第一輻射金屬層2係形成於該第一硬質介電本體1 之上表面，並且該接地金屬層3係形成於該第一硬質介電 本體1之下表面。然而，上述「該第一硬質介電本體1係 可為陶瓷材料或絕緣材料」之界定只是用來與例而已，而 並非用以限定本發明，舉凡任何種類的介電材料皆可應用 於該第一硬質介電本體1。 ❿ 再者，該天線潰入接腳4係穿透該第一硬質介電本體 1之穿孔1 0，其中該天線潰入接腳4的頂端4 0係固定 於該第一硬質介電本體1的上方，並且該天線潰入接腳4 的底端4 1係從該第一硬質介電本體1之下表面延伸而 出。 此外，該天線潰入接腳4的頂端40係電性連接於該 第一輻射金屬層2，並且該天線潰入接腳4係與該接地金 屬層3彼此絕緣。另外，該天線潰入接腳4的頂端4 0係 _ 具有一凸出於該第一硬質介電本體1上表面之凸點4 0 0，並且該第二硬質介電本體5的下表面係具有一相對應 該凸點4 0 0的凹槽5 0 0。因此，由於該凸點4 0 0係 容置該凹槽5 0 0内，以使得該第二硬質介電本體5係透 過該凸點4 0 0與該凹槽5 0 0的配合而穩固地定位在該 第一硬質介電本體1的上方。 ' 再者，該第二硬質介電本體5係可為陶瓷材料或絕緣 材料，並且該第二硬質介電本體5係可為一實心體。此外， 該第二硬質介電本體5係設置於該第一硬質介電本體1的 上方。然而，上述「該第二硬質介電本體5係可為陶瓷材 201017976 料或絕緣材料」之界定只是用來與例而已，而並非用以限 定本發明，舉凡任何種類的介電材料皆可應用於該第二硬 質介電本體5。 另外，該第二輻射金屬層6係形成於該第二硬質介電 本體5之上表面。此外，該黏著元件7係設置於該第一輻 射金屬層2及該第二硬質介電本體5之間，以使得該第一 硬質介電本體1及該第二硬質介電本體5相互疊合在一 起。其中，依據不同的使用需求，該黏著元件7係可為一 φ 雙面膠帶或一黏著膠體。以本發明所揭露的實施例而言， 該黏著元件7係為一雙面膠帶，並且該雙面膠帶的兩相反 面分別為兩個黏著面，以分別黏著於該第一輻射金屬層2 及該第二硬質介電本體5。 再者，本發明雙層陶瓷圓極化天線結構更進一步包 括：一電路板8及另外一個黏著元件9。該電路板8係具 有一電路板穿孔8 0，並且上述另外一個黏著元件9係設 置於該接地金屬層3與該電路板8之間，其中該天線潰入 0 接腳4的底端41係穿過該電路板穿孔80，以電性連接 於該電路板8。此外，依據不同的使用需求，上述另外一 個黏著元件9係可為一雙面膠帶或一黏著膠體。以本發明 所揭露的實施例而言，上述另外一個黏著元件9係為一雙 面膠帶，並且該雙面膠帶的兩相反面分別為兩個黏著面， 以分別黏著於該接地金屬層3與該電路板8。 ' 請參閱第三圖所示，本發明揭露一種雙層陶瓷圓極化 天線結構的製作方法，其包括下列步驟： 步驟S100係為：分別成形一第一輻射金屬層2及一接 地金屬層3於一第一硬質介電本體1之上表面及下表面。 11 201017976 步驟S1G2係為··透過—模擬軟體 腳4的設置位置及所能夠產生之最高增益The bottom end of the antenna break-in pin extends from the lower surface of the first full-body dielectric body 7 201017976. The second rigid dielectric system is disposed above the first rigid dielectric body. The second radiation gold is formed on the upper surface of the second hard dielectric. The wire-worn component is disposed between the first radiating metal layer and the second hard dielectric body such that the second hard dielectric body and the second hard dielectric body are superposed on each other. In order to solve the above technical problem, according to the first aspect of the present invention, a method for fabricating a double-layer ceramic-negative polarization antenna structure is provided, which comprises the following steps: firstly, respectively, forming a metal layer and a grounding layer. Metal 曰: - the upper surface and the lower surface of the first hard dielectric body; then, through the -mode, the body is evaluated to evaluate the position of the antenna break pin and the available value (ZenithGain), and then the first a hard dielectric 2: a hole 'and the antenna collapsing pin penetrates the first hard mesopores, wherein a top end of the antenna collapsing pin is fixed to the second; | f body above, and the antenna The bottom end of the crushing pin extends from the lower surface of the dielectric body; then, a second body is provided and a second radiating metal layer is formed on the second surface Next, the component is adhered between the second hard dielectric body disposed on the first spokes, so that the body and the second hard dielectric body are superposed on each other, H'3 The double-layered circularly polarized antenna structure to the predetermined frequency band To reach the frequency band used by the user. In the design of the present invention, we adopt a two-layer ceramic structure dielectric body and the second hard dielectric body), and utilize the quality; the electrical body electrical body) and the lower layer ceramics (the second hard start earthquake (nce) In such a way that the day of the present invention ... is enough to fall on the satellite digital audio broadcasting service (SDARS) frequency 8 201017976 ▼. The upper ceramic has only a single-sided electrode surface (the second radiation metal layer), and the middle uses the glue (The adhesive member) fixes the upper layer of the lower layer ceramic (the second hard dielectric body) to enable the antenna of the present invention to obtain better stability. The layer of ceramics ^ ^ (the first hard dielectric body and the second hard dielectric body) ι good stability, so the invention can increase the stability of electrical stability less) 0 ” postal phenomenon By using the upper electrode surface (the first radiation metal layer) and the electrode surface (the ground metal layer), we can correct the impedance value to reach =, and match. Moreover, since the ceramic structure of the present invention is fixed, the matching value is also = Easy to achieve, not easy to have too Large variations, so the junction formed by the present invention has a larger bandwidth, a better maximum gain value (4), and a better __width (five) and is well suited for circularly polarized antennas. In order to further understand the techniques, means, and effects of the present invention in order to achieve the intended purpose, reference should be made to the accompanying drawings. It is to be understood that the invention is not intended to be limited by the scope of the invention. The layered ceramic circularly polarized antenna structure comprises: a first hard dielectric body 1, a first radiating metal layer 2, a grounding metal layer 3, an antenna breaking pin 4, and a second hard dielectric body 5 a second radiating metal layer 6 and an adhesive member 7. 9 201017976 wherein the first hard dielectric body 1 is a ceramic material or an insulating material, and the first hard dielectric body 1 has a perforation 1 0. In addition, the first radiant metal layer 2 is formed on the upper surface of the first hard dielectric body 1, and the ground metal layer 3 is formed on the lower surface of the first hard dielectric body 1. However, the above The first rigid dielectric body 1 can be a ceramic material or an insulating material. The definitions are only for the sake of example, and are not intended to limit the invention. Any kind of dielectric material can be applied to the first hard dielectric. Ontology 1. Further, the antenna break-in pin 4 penetrates the through hole 10 of the first hard dielectric body 1, wherein the top end 40 of the antenna break-in pin 4 is fixed to the first hard dielectric body 1 The upper end of the antenna breaking pin 4 extends from the lower surface of the first hard dielectric body 1. In addition, the top end 40 of the antenna breaking pin 4 is electrically connected to the first radiating metal layer 2, and the antenna breaking pin 4 and the grounding metal layer 3 are insulated from each other. In addition, the top end of the antenna break-in pin 4 has a bump 410 protruding from the upper surface of the first hard dielectric body 1, and the lower surface of the second hard dielectric body 5 is There is a groove 50 0 corresponding to the bump 400. Therefore, the bump 400 is accommodated in the recess 50 0 such that the second rigid dielectric body 5 is firmly coupled to the recess 50 0 through the recess 50 0 0. Positioned above the first rigid dielectric body 1. Further, the second rigid dielectric body 5 may be a ceramic material or an insulating material, and the second rigid dielectric body 5 may be a solid body. In addition, the second rigid dielectric body 5 is disposed above the first rigid dielectric body 1. However, the above definition of "the second rigid dielectric body 5 may be a ceramic material 201017976 material or an insulating material" is used for the sake of example only, and is not intended to limit the invention, and any kind of dielectric material may be applied. And the second rigid dielectric body 5. In addition, the second radiating metal layer 6 is formed on the upper surface of the second hard dielectric body 5. In addition, the adhesive element 7 is disposed between the first radiating metal layer 2 and the second hard dielectric body 5 such that the first hard dielectric body 1 and the second hard dielectric body 5 overlap each other. Together. The adhesive component 7 can be a φ double-sided tape or an adhesive gel according to different usage requirements. In the embodiment of the present invention, the adhesive member 7 is a double-sided tape, and the opposite faces of the double-sided tape are respectively two adhesive faces for respectively adhering to the first radiant metal layer 2 and The second rigid dielectric body 5. Furthermore, the double-layer ceramic circularly polarized antenna structure of the present invention further includes a circuit board 8 and another adhesive member 9. The circuit board 8 has a circuit board through hole 80, and the other adhesive element 9 is disposed between the ground metal layer 3 and the circuit board 8, wherein the antenna breaks into the bottom end 41 of the 0 pin 4. A through hole 80 is passed through the circuit board to be electrically connected to the circuit board 8. In addition, according to different usage requirements, the other adhesive component 9 may be a double-sided tape or an adhesive. In the embodiment disclosed by the present invention, the other adhesive component 9 is a double-sided tape, and the opposite faces of the double-sided tape are respectively two adhesive faces to respectively adhere to the ground metal layer 3 and The circuit board 8. Referring to the third figure, the present invention discloses a method for fabricating a two-layer ceramic circularly polarized antenna structure, which includes the following steps: Step S100 is: forming a first radiating metal layer 2 and a grounding metal layer 3, respectively. The upper surface and the lower surface of the first hard dielectric body 1. 11 201017976 Step S1G2 is the transmission position of the analog software foot 4 and the highest gain that can be generated.
Gam)’然後將該第一硬質介電本體上開設一穿孔 = 且將該天線潰人接腳4穿透該第 並 ]〇，中兮不始、主λ从 又貝"電本體1之穿孔 二Ϊ:=ί Μ的頂端4 ◦係固定於該第-^ /丨電本肢1的上方’並且該天線潰人接腳 ❹ 1係從該第-硬質介電本體i之下表面延伸而出。-步驟S104係為：提供一第二硬質 一第二輻射金屬声⑽出认二 本體5 ’並且將 乐㈣域層6形成於該苐二硬質介電本體5之上表 IMJ 0 步驟:106係為：透過一設置於該第一輻射金屬 =第二硬質介電本體5之_著元件7，錢得該第 質介電本體1及該第二硬f介電本體5相互叠合在一起。 步驟S1G8係為：調節職層喊圓極化天線結構至一 員疋頻段，以達到使用者所需要的使用頻段。 沾播述，在本發明的設計中，我們採用了雙層陶瓷 、、，構（5㈣—硬質介電本體1及該第二硬質介電本體5 )， 上層_ (該第—硬質介電本體1 )與下層陶变 (该第二硬質介電本體5)譜震（_η_)的 ^ ㈣落在衛星触音訊廣播服務 、鳩）頻帶上。上層陶究只有單面電極面（該第—蘇 射金屬層6 )’並且中間利用貼膠（該黏著元件 口 陶究（該第—硬質介電本體1 )固定在下層喊（該笛 硬質介電本體5 ) h使本發明的天線㈣得到^^ 疋性。由於雙層陶聽構（該第—硬¥介電本體 二硬質介電本體5 )之_穩定性佳，所財發明能= 12 201017976 加電性的穩定性（頻偏現象較小）。 再者，利用上層電極面（該第一輻射金屬層2)及下 : 層電極面（該接地金屬層3 )，我們可以將阻抗值修正，達 到阻抗匹配。此外，因為本發明的陶瓷結構固定，匹配值 也很容易達成，不易有太大的變化’所以本發明所成形的 結構具有較大的頻寬（Bandwidth )、較佳的最高增益值 (Zenith Gain )、及有很好的軸比頻寬（Axial Ratio Bandwidth )，並且非常適用於圓極化天線。例如：下列所示 ❹ 習知與本發明之頻寬（Bandwidth)、最高增益值（Zenith Gain )及軸比頻寬（Axial Ratio Bandwidth )比較表。 \ Bandwidth Axial Ration □ 3dB Bandwidth Zenith Gain 單層 陶瓷圓極化 天線結構 129.45 MHz 32 MHz >5.3 雙層 陶瓷圓極化 天線結構 163.39 MHz 35 MHz ------ >5.4 惟，本發明之所有範圍應以下述之申請專利範圍為 準凡合於本發明申請專利範圍之精神與其類似變化之實 =，皆應包含於本發明之麟中，任何熟悉該項技藝者 在本發明之領域内，可輕易思及之變化或修㈣可涵蓋在 以下本案之專利範圍。 13 201017976 【圖式簡單說明】 第一 A圖係為本發明雙層陶瓷圓極化天線結構之立體分解 不意圖， 第一 B圖係為本發明雙層陶瓷圓極化天線結構之側視分解 不意圖， 第二A圖係為本發明雙層陶瓷圓極化天線結構之立體組合 不意圖， 第二B圖係為本發明雙層陶瓷圓極化天線結構之側視組合 參 示意圖；以及 第三圖係為本發明雙層陶瓷圓極化天線結構的製作方法之 流程圖。 【主要元件符號說明】 第一硬質介電本體 1 穿孔 10 第一輕射金屬層 2 接地金屬層 3 天線潰入接腳 4 頂端 4 0 凸點 4 0 0 底端 4 1 第二硬質介電本體 5 凹槽 5 0 0 第二輕射金屬層 6 黏著元件 7 電路板 8 電路板穿孔 8 0 黏著元件 9 14Gam)' then opening a perforation on the first hard dielectric body = and piercing the antenna with the antenna pin 4], the middle 兮 does not start, the main λ is from the shell " Perforation two: ί 顶端 顶端 顶端 4 4 4 固定 固定 固定 固定 固定 固定 固定 固定 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且 并且And out. - Step S104 is: providing a second hard-first second radiating metal sound (10) to recognize the second body 5' and forming a music layer 4 on the second hard dielectric body 5. Table IMJ 0 Step: 106 Series Therefore, the first dielectric metal 1 and the second hard dielectric body 5 are stacked on each other through a first radiating metal=the second hard dielectric body 5. Step S1G8 is to adjust the structure of the circularly polarized antenna structure to a member frequency band to achieve the frequency band required by the user. In the design of the present invention, we have adopted a double-layer ceramic, a structure (5 (four) - hard dielectric body 1 and the second hard dielectric body 5), an upper layer _ (the first hard dielectric body 1) The lower (the second hard dielectric body 5) spectral shock (_η_) ^ (four) falls on the satellite touch audio broadcast service, 鸠) band. The upper layer of ceramics has only a single-sided electrode surface (the first-salt metal layer 6)' and the middle uses a glue (the adhesive element mouth is ceramic (the first-hard dielectric body 1) is fixed in the lower layer shouting (the flute hard medium The electric body 5) h enables the antenna (4) of the present invention to be sturdy. Since the double-layered ceramic structure (the first-hard-compressed body and the second hard dielectric body 5) has good stability, the invention can be 12 201017976 Stability of chargeability (less frequency deviation). Furthermore, by using the upper electrode surface (the first radiant metal layer 2) and the lower: layer electrode surface (the ground metal layer 3), we can impedance The value is corrected to achieve impedance matching. In addition, since the ceramic structure of the present invention is fixed, the matching value is easily achieved and is not easily changed too much. Therefore, the structure formed by the present invention has a large bandwidth (Bandwidth), preferably. The highest gain value (Zenith Gain), and a good Axial Ratio Bandwidth, and is very suitable for circularly polarized antennas. For example, the following shows the bandwidth of the present invention and the bandwidth of the present invention (Bandwidth) , the highest gain value (Zenith Gain) and Comparison table of Axial Ratio Bandwidth. \ Bandwidth Axial Ration □ 3dB Bandwidth Zenith Gain Single-layer ceramic circularly polarized antenna structure 129.45 MHz 32 MHz >5.3 Double-layer ceramic circularly polarized antenna structure 163.39 MHz 35 MHz --- --- > 5.4 </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> Those skilled in the art can easily change or repair (4) in the field of the present invention, which can be covered in the following patent scope of the present invention. 13 201017976 [Simple description of the drawings] The first A picture is a double-layer ceramic circle of the present invention. The stereoscopic decomposition of the polarized antenna structure is not intended. The first B diagram is a side view decomposition of the double-layer ceramic circularly polarized antenna structure of the present invention, and the second A diagram is the double-layer ceramic circularly polarized antenna structure of the present invention. The stereoscopic combination is not intended, and the second B is a side view combined view of the double-layer ceramic circularly polarized antenna structure of the present invention; and the third figure is the double-layer ceramic circularly polarized antenna of the present invention. Flow chart of the manufacturing method of the structure. [Description of main component symbols] First hard dielectric body 1 Perforation 10 First light metal layer 2 Ground metal layer 3 Antenna break pin 4 Top 4 0 Bump 4 0 0 Bottom 4 1 Second hard dielectric body 5 Groove 5 0 0 Second light metal layer 6 Adhesive element 7 Circuit board 8 Circuit board perforation 8 0 Adhesive element 9 14