201019534 . 六、發明說明： 【發明所屬之技術領域】 本發明係為一種圓極化天線結構，尤指一種將一輻射導電層以預定之 槽縫圖案之天線設計者。 【先前技術】 由於無線通訊技術的發展，電子產品對於訊號的接收品質要求越 來越重視，而天線在無線通訊的領域中，為訊號傳送接收極為重要的 元件，天線的電氣特性攸關通訊品質，而且天線必須搭配曰益小型化、 Θ 薄形化的電子產品發揮無線通訊的傳輸特性。因此，如何兼顧天線訊 號品質以及配合無線通訊裝置輕薄短小的趨勢，將是開發天線的重要 因素。 隨著無線衛星通訊科技和移動式通訊器材之快速發展與運用，將 全球衛星定位系統(Global Positioning System，GPS)運用於各式電 子設備中’已是極為重要的趨勢。由於GPS衛星下傳之訊號為右手圓 形極化電磁波，因此電子設備的接收天線亦必須為右手圓形極化型 式’而且接收天線之輻射場型必須是朝上呈右手圓極化分佈，才能順 利向上接收GPS衛星訊號，此乃促使右手圓極化天線在GPS通訊應用 上極為重要的因素》 請參閲第1圖及第2圖，分別為一種習知圓極化天線裝置之上視 圖以及習知圓極化天線裝置之側面剖視圈。由圖可知，習知的圓極化 天線裝置（10)係包括有：一介電載體（13)、一輻射導電層（n)、 一饋入導體（12)、一接地導電層（14)。 其中，該輻射導電層（11)係設置於該介電載體（13)之上表面， 並且該饋入導體（12)係從該介電載體（13)之下表面延伸而出。此 外，該接地導電層（14)係塗佈於該介電載艘（13)之下表面。透過 該介電載體（13)表面的輻射導電層（η)與接地導電層（14)形成 天線輻射裝置，而產生一預定的輻射場型。 由於習知圓極化天線裝置，仍具有體積過大且阻抗匹配與場型增 3 201019534 . 奸易控制的製造和應用上的限期題，因此，如何開發—種髏積微 小化、輻射場型佳、增益穩定的天線，實為通訊業界極需努力開發改 良的目標。 承上所述，本案發明人本於多年從事相關產品之開發製造與設計 經驗，針對上述之目標，詳加設計與審慎評估驗證後，實得一具 用之本發明。 【發明内容】 本發明所要解決的技術問題，在提供一種圓極化天線，藉由介電 健表面上的輻射導電層形成之預定稽_案，進而構成圓極化輻射 醫 場型，具有良好的阻抗匹配、天線增益與頻宽，並且達到縮小天線艘 積之效益者。 為達上揭的技術問題’本發明係提供一種圓極化天線，其包括有： 一介電載體、一輻射導電層、一饋入導髏、以及一接地導電層。其中， 該輻射導電層係設置於該介電載艟之上表面形成一預定之槽縫囷案， 並使介電載體上表面的輻射導電層與饋入導體電性連接，而該餚入導 體係從介電載體之下表面延伸而出，且該接地導電層係設置於該介電 載體之下表面。 Φ 【實施方式】 為進一步瞭解本發明之目的所採取的技術與功效，茲配合【圖示 說明】詳述如后： 請參閱第3圖及第4圓，係本發明之第一較佳實施例，係提供一 種圓極化天線(20a)，其包括有： 一介電載體（23a)、一輻射導電層（21a)、一饋入導體(22a)、以 及一接地導電層（24a)，其中，該輻射導電層（21a)係設置於該介電載 體(23a)之上表面形成一預定之槽縫(s〇it)丨形圖案（τ)，該槽縫圓案 (T)具有四個量度參數’分別為槽縫的角度(a)、高度(b)、長度(c)以 及寬度(d)，該槽縫的角度(a)係小於180度，該槽縫的高度(b)與長 度(c)係小於L/2 ’該槽缝的寬度(d)係小於W/2，其中L與W分別為介 4 201019534 電載艘（23a)的長和寬尺寸，而介電載體（23a)可為矩形體或長方 艘形狀，該介電載艘（23a)上表面的輻射導電層（21a)與饋入導體 (22a)形成電性連接，該饋入導體（22a)係從介電栽體（23a)之下 表面延伸而出，以及該接地導電層（24a)係設置於該介電載體之下表 面。該介電載體（23a)可採用陶瓷或陶瓷與高分子之複合材料所構成， 其介電常數係為5〜150之間，該輻射導電層（21a)及接地導電層（24a) 可為直接電鍍或粉末燒結或真空濺鍍或貼合或其他工法附著於介電載 體（23a)表面，該饋入導體(22a)可採用銅柱或粉末燒結或其他導電 金屬材料成型方法所構成，當介電載體(23a)上表面之輻射導電層（2ia) ❽ 配合預定之槽縫囷案(T)收發輻射訊號時，因介電載體(23a)具有輻射 導電層（21a)與饋入導艘(22a)所構成的電流輕射路徑，以使整個介電 載體（23a)產生圓極化輻射場型，具有良好的輸入阻抗匹配，並能提 高天線増益與增加頻寬。 請參閲第5圖及第6圖所示’係本發明之第二較佳實例，由圖中 所知’係提供一種圓極化天線(20b)，其包括有： 一介電載體（23b)、一輻射導電層（21b)、一饋入導體(22b)、以 及一接地導電層（24b)，其中，該輻射導電層（21a)係設置於該介電载 體(23a)之上表面形成一預定之槽缝(s〇it)丫形圈案(γ),該槽縫圈案 (Y)具有四個量度參數，分別為槽縫的角度(e)、高度(f)、長度(g)以 〇 及寬度(h) ’該槽縫的角度(e)係小於180度，該槽縫的高度(f)與長 度(g)係小於L/2 ’該槽縫的寬度(h)係小於W/2，其中L與W分別為介 電載體（23b)的長和寬尺寸，而介電載體（23b)可為矩形體或長方 體形狀，該介電載體（23b)上表面的輻射導電層（21b)與镄入導體 (22b)形成電性連接，該饋入導體（22b)係從介電載體（23b)之下 表面延伸而出，以及該接地導電層（24b)係設置於該介電載體之下表 面。該介電載體（23b)可採用陶瓷或陶瓷與高分子之複合材料所構成， 其介電常數係為5〜150之間，該輻射導電層（21b)及接地導電層（24b) 可為直接電鍍或粉末燒結或真空濺鍍或貼合或其他工法附著於介電載 體（23b)表面’該饋入導體(22b)可採用銅柱或粉末燒結或其他導電 金屬材料成型方法所構成，當介電載體(23b)上表面之輻射導電層（2lb) 201019534 配合預定之槽縫圖案(γ)收發輻射訊號時，因介電載體(23b)具有轄射 導電層（21b)與饋入導體(22b)所構成的電流輻射路徑，以使整個介電 載艘（23b)產生圓極化輻射場型’具有良好的輸入阻抗匹配，並能提 高天線增益與增加頻宽。 請參閱第7圖及第8圖所示’係本發明之第二較佳實例，由圖中 所知，係提供一種圓極化天線(20c) ’其包括有： 一介電載體（23c)、一輻射導電層（21c)、一饋入導體(22c)、以 及一接地導電層（24c) ’其中，該輻射導電層（2lc)係設置於該介電載 體(23c)之上表面形成一預定之槽縫(Solt)丫形分支圖案(κ)，該槽縫 圖案(K)具有六個量度參數，分別為槽縫的第一角度（i)與第二角度 (j)、高度(P)、第一長度(m)與第二長度(η)以及寬度(s)，該槽缝的角 度（i)與（j)係小於180度’該槽缝的高度(ρ)與長度(m)與⑹係小於 L/2，該槽縫的寬度(s)係小於W/2 ’其中L與W分別為介電載體（23c) 的長和寬尺寸，而介電載體（23c)可為矩形體或長方體形狀，該介電 載體（23c)上表面的輻射導電層（21c)與饋入導體（22c)形成電性 連接，該饋入導體（22c)係從介電載體（23c)之下表面延伸而出， 以及該接地導電層（24c)係設置於該介電載體之下表面。該介電載體 (23c)可採用陶瓷或陶瓷與高分子之複合材料所構成，其介電常數係 為5〜150之間’該輻射導電層（21c)及接地導電層（24c)可為直接電鍍 〇 或粉末燒結或真空濺鍍或貼合或其他工法附著於介電載體（23c)表 面，該饋入導體(22c)可採用銅柱或粉末燒結或其他導電金屬材料成型 方法所構成，當介電載體(23c)上表面之輻射導電層（21c)配合預定之 槽縫圖案(K)收發輻射訊號時，因介電載體(23c)具有輻射導電層（21c) 與饋入導體(22c)所構成的電流輻射路徑，以使整個介電載體（23c) 產生圓極化輻射場型，具有良好的輸入阻抗匹配，並能提高天線增益 與增加頻寬。 請參閱第9圖，係習知圓極化天線裝置之反射損失實測數據圖， 由囷中得知該天線的中心頻率點為1.87GHz，未符合全球衛星定位系統 (GPS)的應用頻率1.575GHz，故無法接收衛星所傳送的電磁波訊號，必 須要將輻射頻率點調諧到GPS應用頻率才能接收到衛星傳送的電磁波 6 201019534 訊號。 請參閱第10圈及第11圈，係本發明圓極化天線裝置之第一較佳 實施例反射損失實測數據圖以及第二較佳實施例反射損失實測數據 圖’其中藉由改變輻射導電層特定之槽縫圈案所構成的電流輻射路 徑’可以調諧輻射頻率點，以符合全球衛星定位系統(GPS)的工作頻率 1.575GHz ’並使整個介電載趙產生叙合’達到良好的輸入阻抗匹配與 提高天線增益與增加頻寬。 以上所舉實施例僅用為方便說明本發明並非加以限制，在不離本 發明精神範疇，熟悉此一行業技藝人士所可作之各種簡易變形與修 飾’均仍應含括於以下申請專利範圍中。 參 【圖式簡單說明】 第1圓：係為習知圓極化天線裝置之上視圖。 第2闽：係為習知圆極化天線裝置之側面剖視圈。 第3圏：係為本發明之圓極化天線裝置第一較佳實施例之上視闽。 第4圖：係為本發明之圓極化天線裝置第一較佳實施例之側面剖視圈。 第5圖：係為本發明之圓極化天線裝置第二較佳實施例之上視囷。 第6圓：係為本發明之圓極化天線裝置第二較佳實施例之側面剖視圖。 第7囷：係為本發明之面極化天線裝置第三較佳實施例之上視圖。 ❹ 第8圖：係為本發明之圓極化天線裝置第三較佳實施例之側面剖視圖。 第9囷：係為習知圆極化天線裝置之反射損失實測數據圈β 第10圖：係為本發明之圓極化天線裝置第一較佳實施例反射損失實測 數據圖。 第11圏：係為本發明之圓極化天線裝置第二較佳實施例反射損失實測 數據圖。 7 201019534 【主要元件符號說明】 習知部分： 圓極化天線裝置（10) 介電載體（13) 輻射導電層（11) 饋入導體（12) 接地導電層（14) 本發明部分： 圓極化天線（20a) (20b) (20c) β 介電載體（23a) (23b) (23c) 輻射導電層（21a) (21b) (21c) 饋入導體（22a) (22b) (22c) 接地導電層（24a) (24b) (24c) 預定之槽縫t形圖案（T) 預定之槽縫丫形圖案（Y) 預定之槽縫丫形分支圖案（K) 槽缝角度（a) (e) (i) (j) 槽縫高度（b) (f) (ρ) ❿ 槽縫長度（c) (g) (m) (η) 槽縫寬度（d) (h) (s) 天線長度（L) 天線寬度（W) 8201019534. VI. Description of the Invention: [Technical Field] The present invention is a circularly polarized antenna structure, and more particularly an antenna designer who designs a radiation conductive layer in a predetermined slot pattern. [Prior Art] Due to the development of wireless communication technology, electronic products pay more and more attention to the receiving quality requirements of signals. In the field of wireless communication, antennas are extremely important components for signal transmission and reception. The electrical characteristics of antennas are related to communication quality. And the antenna must be combined with the miniaturized, thin and thin electronic products to realize the transmission characteristics of wireless communication. Therefore, how to balance the antenna signal quality with the trend of light and short wireless communication devices will be an important factor in the development of antennas. With the rapid development and application of wireless satellite communication technology and mobile communication equipment, the application of Global Positioning System (GPS) to various electronic devices has become an extremely important trend. Since the signal transmitted by the GPS satellite is a right-hand circularly polarized electromagnetic wave, the receiving antenna of the electronic device must also be a right-hand circular polarization type 'and the radiation field of the receiving antenna must be a right-hand circular polarization distribution upwards. Smooth reception of GPS satellite signals, which is a very important factor in the application of right-hand circularly polarized antennas in GPS communication applications. Please refer to Figures 1 and 2, respectively, for a top view of a conventional circularly polarized antenna device and A side cross-sectional view of a conventional circularly polarized antenna device. As can be seen from the figure, a conventional circularly polarized antenna device (10) includes a dielectric carrier (13), a radiation conductive layer (n), a feed conductor (12), and a ground conductive layer (14). . The radiation conducting layer (11) is disposed on the upper surface of the dielectric carrier (13), and the feeding conductor (12) extends from the lower surface of the dielectric carrier (13). In addition, the grounded conductive layer (14) is applied to the lower surface of the dielectric carrier (13). An antenna radiation device is formed through the radiation conductive layer (η) on the surface of the dielectric carrier (13) and the ground conductive layer (14) to produce a predetermined radiation pattern. Due to the conventional circularly polarized antenna device, it still has an excessive volume and impedance matching and field type increase. 201019534. The control and application of the deadline is limited, therefore, how to develop - a kind of hoarding miniaturization, radiation field type The antenna with stable gain is really in the communication industry and it is extremely difficult to develop and improve the target. As stated above, the inventor of this case has been engaged in the development, manufacturing and design of related products for many years. After the detailed design and careful evaluation and verification of the above objectives, the invention has been effectively used. SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a circularly polarized antenna, which is formed by a predetermined pattern formed by a radiation conductive layer on a dielectric surface, thereby forming a circularly polarized radiation medical field type, which has good Impedance matching, antenna gain and bandwidth, and to achieve the benefits of reducing the antenna product. The present invention provides a circularly polarized antenna comprising: a dielectric carrier, a radiation conducting layer, a feedthrough, and a grounded conductive layer. Wherein, the radiation conducting layer is disposed on the upper surface of the dielectric carrier to form a predetermined slot pattern, and electrically connecting the radiation conductive layer on the upper surface of the dielectric carrier to the feeding conductor, and the food guiding The system extends from a surface below the dielectric carrier, and the grounded conductive layer is disposed on a lower surface of the dielectric carrier. Φ [Embodiment] The technology and efficacy adopted for further understanding of the object of the present invention are described in detail below with reference to the following: Please refer to FIG. 3 and the fourth circle, which is the first preferred embodiment of the present invention. For example, a circularly polarized antenna (20a) is provided, comprising: a dielectric carrier (23a), a radiation conductive layer (21a), a feed conductor (22a), and a ground conductive layer (24a), The radiation conductive layer (21a) is disposed on the upper surface of the dielectric carrier (23a) to form a predetermined slot pattern (τ), and the slot circle (T) has four The measurement parameter 'is the angle (a), height (b), length (c) and width (d) of the slot, and the angle (a) of the slot is less than 180 degrees, and the height of the slot (b) And the length (c) is less than L/2 'the width (d) of the slot is less than W/2, where L and W are respectively the length and width dimensions of the dielectric ship (23a), and the dielectric carrier (23a) may be in the shape of a rectangular body or a rectangular ship, and the radiation conductive layer (21a) on the upper surface of the dielectric carrier (23a) is electrically connected to the feed conductor (22a), and the feed conductor (22a) is From The surface below the electrode carrier (23a) extends, and the ground conductive layer (24a) is disposed under the dielectric carrier. The dielectric carrier (23a) may be made of ceramic or a composite material of ceramic and polymer, and has a dielectric constant of 5 to 150. The radiation conductive layer (21a) and the grounding conductive layer (24a) may be directly Electroplating or powder sintering or vacuum sputtering or bonding or other methods are attached to the surface of the dielectric carrier (23a). The feeding conductor (22a) may be formed by copper column or powder sintering or other conductive metal material forming method. The radiation conductive layer (2ia) on the upper surface of the electric carrier (23a) 配合 cooperates with the predetermined slot pattern (T) to transmit and receive the radiation signal, because the dielectric carrier (23a) has the radiation conductive layer (21a) and the feed guide ( 22a) The current light path is constructed such that the entire dielectric carrier (23a) produces a circularly polarized radiation pattern with good input impedance matching and improved antenna gain and increased bandwidth. Please refer to FIG. 5 and FIG. 6 for a second preferred embodiment of the present invention. A circularly polarized antenna (20b) is provided, which includes: a dielectric carrier (23b) a radiation conductive layer (21b), a feed conductor (22b), and a ground conductive layer (24b), wherein the radiation conductive layer (21a) is disposed on the surface of the dielectric carrier (23a) Forming a predetermined slot (丫) 丫 ring case (γ), the slot circle (Y) has four measurement parameters, respectively the angle (e), height (f), length of the slot ( g) 〇 and width (h) 'The angle (e) of the slot is less than 180 degrees, the height (f) and length (g) of the slot is less than L/2 'the width of the slot (h) It is less than W/2, wherein L and W are the length and width dimensions of the dielectric carrier (23b), respectively, and the dielectric carrier (23b) may be in the shape of a rectangle or a rectangular parallelepiped, and the radiation on the upper surface of the dielectric carrier (23b) The conductive layer (21b) is electrically connected to the intrusion conductor (22b), the feed conductor (22b) extends from the lower surface of the dielectric carrier (23b), and the ground conductive layer (24b) is disposed on The lower surface of the dielectric carrier. The dielectric carrier (23b) may be made of ceramic or a composite material of ceramic and polymer, and has a dielectric constant of 5 to 150. The radiation conductive layer (21b) and the grounding conductive layer (24b) may be directly Plating or powder sintering or vacuum sputtering or bonding or other methods attached to the surface of the dielectric carrier (23b) 'The feed conductor (22b) may be formed by copper column or powder sintering or other conductive metal material forming method. Radiation conductive layer (2lb) on the upper surface of the electric carrier (23b) 201019534 When the radiation signal is transmitted and received in conjunction with a predetermined slot pattern (γ), the dielectric carrier (23b) has a steered conductive layer (21b) and a feed conductor (22b) The current path of the radiation is such that the entire dielectric carrier (23b) produces a circularly polarized radiation pattern that has good input impedance matching and can increase antenna gain and increase bandwidth. Please refer to FIGS. 7 and 8 for a second preferred embodiment of the present invention. As is known from the drawings, a circularly polarized antenna (20c) is provided which includes: a dielectric carrier (23c) a radiation conductive layer (21c), a feed conductor (22c), and a ground conductive layer (24c), wherein the radiation conductive layer (2lc) is disposed on the upper surface of the dielectric carrier (23c) to form a a predetermined slotted (Solt) 分支-shaped branch pattern (κ) having six metric parameters, respectively a first angle (i) and a second angle (j), height (P) of the slot ), the first length (m) and the second length (η) and the width (s), the angles (i) and (j) of the slot are less than 180 degrees 'the height (ρ) and length (m) of the slot And (6) is less than L/2, the width (s) of the slot is less than W/2 'where L and W are the length and width dimensions of the dielectric carrier (23c), respectively, and the dielectric carrier (23c) may be In the shape of a rectangular body or a rectangular parallelepiped, the radiation conductive layer (21c) on the upper surface of the dielectric carrier (23c) is electrically connected to the feed conductor (22c), and the feed conductor (22c) is from the dielectric carrier (23c). The lower surface extends out to The ground conductive layer (24c) disposed below the surface of the carrier system of the dielectric. The dielectric carrier (23c) may be made of a ceramic or a composite material of a ceramic and a polymer, and has a dielectric constant of between 5 and 150. The radiation conductive layer (21c) and the ground conductive layer (24c) may be directly Plating or powder sintering or vacuum sputtering or bonding or other methods are attached to the surface of the dielectric carrier (23c), and the feeding conductor (22c) may be formed by copper column or powder sintering or other conductive metal material forming method. When the radiation conductive layer (21c) on the upper surface of the dielectric carrier (23c) is combined with the predetermined slot pattern (K) to transmit and receive the radiation signal, the dielectric carrier (23c) has the radiation conductive layer (21c) and the feed conductor (22c). The current radiating path is formed such that the entire dielectric carrier (23c) produces a circularly polarized radiation pattern, has good input impedance matching, and can improve antenna gain and increase bandwidth. Please refer to Figure 9, which is a measured data of the reflection loss of a conventional circularly polarized antenna device. It is known that the center frequency of the antenna is 1.87 GHz, which is not in accordance with the global satellite positioning system (GPS) application frequency of 1.575 GHz. Therefore, it is impossible to receive the electromagnetic wave signal transmitted by the satellite, and the radiation frequency point must be tuned to the GPS application frequency to receive the electromagnetic wave transmitted by the satellite 6 201019534 signal. Please refer to the 10th and 11th laps, which are the measured data of the reflection loss of the first preferred embodiment of the circularly polarized antenna device of the present invention and the measured data of the reflection loss of the second preferred embodiment, wherein the radiation conductive layer is changed by The current-radiation path formed by a particular slot circle can tune the radiated frequency point to meet the global satellite positioning system (GPS) operating frequency of 1.575 GHz 'and make the entire dielectric load to generate a good input impedance. Match and increase antenna gain and increase bandwidth. The above embodiments are intended to be illustrative only and not restrictive, and various modifications and modifications that can be made by those skilled in the art are still included in the following claims. . Reference [Simple description of the diagram] The first circle: is a top view of a conventional circularly polarized antenna device. Section 2: A side cross-sectional circle of a conventional circularly polarized antenna device. The third embodiment is a top view of the first preferred embodiment of the circularly polarized antenna device of the present invention. Figure 4 is a side cross-sectional view of a first preferred embodiment of the circularly polarized antenna device of the present invention. Figure 5 is a top view of a second preferred embodiment of the circularly polarized antenna device of the present invention. Circle 6 is a side cross-sectional view of a second preferred embodiment of the circularly polarized antenna device of the present invention. Section 7 is a top view of a third preferred embodiment of the surface polarized antenna device of the present invention. ❹ Fig. 8 is a side cross-sectional view showing a third preferred embodiment of the circularly polarized antenna device of the present invention. Item 9: Reflection loss data measured by a conventional circularly polarized antenna device. Fig. 10 is a graph showing the measured loss of the first preferred embodiment of the circularly polarized antenna device of the present invention. Item 11 is a graph showing the measured data of the reflection loss of the second preferred embodiment of the circularly polarized antenna device of the present invention. 7 201019534 [Description of main component symbols] Conventional part: Circularly polarized antenna device (10) Dielectric carrier (13) Radiating conductive layer (11) Feeding conductor (12) Grounding conductive layer (14) Part of the invention: Circular pole Antenna (20a) (20b) (20c) β dielectric carrier (23a) (23b) (23c) radiation conductive layer (21a) (21b) (21c) feed conductor (22a) (22b) (22c) ground conductive Layer (24a) (24b) (24c) Predetermined slotted t-pattern (T) Pre-defined slotted pattern (Y) Pre-defined slotted branch pattern (K) Slot angle (a) (e) (i) (j) Slot height (b) (f) (ρ) 槽 Slot length (c) (g) (m) (η) Slot width (d) (h) (s) Antenna length (L) Antenna width (W) 8