200816563 九、發明說明： 【發明所屬之技術領域】 本發明是-觀極天線，侧是—種能降_人線逆㈣流的偶極天 線。 【先前技術】 隨著科技的進步，無線傳輸系統的發展帶來生活的諸多便利。其令， 無線通訊傳齡_重要元件之—便是天線。將天線裝設於無線傳輸裝置 r 上，發纏將或電流信_換為麟電信號，藉由天線將無線信號以 幸田射的形式在空中傳播，同樣的天線也可以接收空中的無線信號，轉換為 弘[或電•彳ι物由無線傳輸裝置進行處理，以麵無線傳輪的目的。 私照「第1 ®」為習知技術中偶極天線連接饋人線示相。偶極天 4吊用的天線類型，當偶極天線裝設於無線傳輸裝置時，需藉由饋入線 ^流猶傳送至偶極天線，再透過偶極天線傳送出無線信號^而馈入線 $用的類型為同軸電鐵20,因為同軸魏20為不平衡型的傳輪線，當同軸 私、、見14偶極天線10連接時，同軸電麗2〇的外層導體終端處，會有部分電 ^流人外層導_外絲，而㈣是所·逆向電流。耻導致偶極天 '兩而的正向電流不對稱（1说）。同時溢出的逆向電流心也會在同轴電 、見20上共振而|時，嚴重影響天線輻射場型及阻抗。 請來昭「楚1， 一、、2 0」為習知技術中無逆向電流影響之偶極天線應用於 2.45GHZ時’ γ_ζ平面之輻射場形實驗數據圖，與「第3圖」為習知技術中 又疋向電流影響之偶極天線應用於245GHz時，γ_ζ平面之輪射場形實驗 數據圖。經由「證。η 、 圖」與「第3圖」的比較，可清楚發現逆向電流嚴重 5 200816563 影響到天線細的場形’造成與翻輻射郷的誤差。不僅如此，逆向電 流還會造成輯隨^歡，與造成電料法正粒作_種不良影響兒 “針對上述問題目前常見的解決方案，為在同抽電纔上增加一段金屬套 g如此雖射以改善逆向電流的問題’但會增加金屬套管成本的支出， 以及金屬套管需額外配置增加所需的空間，以及無法與天線—體成型等問 【發明内容】 有4a於此，本發明提供一種偶極天線能有效降低馈入線的逆向電流，且 不需額外增加金屬套管。 么月所&出之降低饋入線逆向電流的偶極天線包含：基板、輕射部、 饋入部、接地部及饋入線。 基板包含第-表面、第二表面、饋人貫孔與接地貫孔，其中饋入貫孔 與接地貫孔貫穿第—表面與第二表面。 輕射部為金屬導體所構成，設置於基板的第—表面，用以收發無線信 i I貝入。丨為i屬導體所構成，設置於基板的第二表面並經由饋入貫孔連 接車昌射部。200816563 IX. Description of the invention: [Technical field to which the invention pertains] The present invention is a viewing pole antenna, and the side is a dipole antenna that is capable of falling _ human line inverse (four) current. [Prior Art] With the advancement of technology, the development of wireless transmission systems has brought many conveniences to life. It makes the wireless communication age _ important components - the antenna. The antenna is mounted on the wireless transmission device r, and the entanglement or current signal is replaced by a lining signal, and the wireless signal is transmitted in the air in the form of a Koda field by the antenna, and the same antenna can also receive the wireless signal in the air. Converted to Hong [or electric • 彳 物 由 由 由 由 由 由 由 由 由 由 由 由 由 由 由 由 由 无线 无线 无线The private photo "1" is a phase diagram of the dipole antenna connection feed line in the prior art. The type of antenna used for dipole antenna 4, when the dipole antenna is installed in the wireless transmission device, it needs to be transmitted to the dipole antenna through the feed line, and then the wireless signal is transmitted through the dipole antenna. The type used is coaxial electric iron 20, because the coaxial Wei 20 is an unbalanced type of transmission line. When the coaxial private, see 14 dipole antenna 10 is connected, there will be a part of the outer conductor terminal of the coaxial electric 2 〇 The electric current is the outer layer of the outer wire, and the fourth is the reverse current. Shame leads to dipole days, and the forward current is asymmetrical (1). At the same time, the reverse current center of the overflow will also affect the radiation field pattern and impedance of the antenna when it is resonant on the coaxial line. Please come to Zhao "Chu 1, 1 and 2 0" as the experimental data of the radiation field shape of the 'γ_ζ plane when the dipole antenna without the influence of the reverse current in the conventional technique is applied to 2.45 GHz, and the "Fig. 3" In the known technique, the dipole antenna with the influence of current is applied to the experimental data of the ray_field of the γ_ζ plane when applied to 245 GHz. Through the comparison of "certificate. η, graph" and "figure 3", it can be clearly found that the reverse current is severe. 5 200816563 affects the antenna's fine field shape' causing errors with the radiant enthalpy. Not only that, the reverse current will also cause the series to follow the Huanhuan, and cause the adverse effects of the electric material method. "The current common solution to the above problem is to add a metal sleeve g to the same pumping power. Shooting to improve the problem of reverse current 'but will increase the cost of metal casing costs, and the space required for additional expansion of the metal casing, and the inability to form an antenna with the body. [Invention] There are 4a here, this The invention provides a dipole antenna capable of effectively reducing the reverse current of the feed line without adding an additional metal sleeve. The dipole antenna of the Yueyue & reducing reverse current of the feed line includes: a substrate, a light-emitting portion, and a feed portion The grounding portion and the feeding line. The substrate comprises a first surface, a second surface, a feedthrough hole and a grounding through hole, wherein the feed through hole and the ground through hole penetrate the first surface and the second surface. The light projecting portion is a metal conductor The first surface of the substrate is disposed on the first surface of the substrate for transmitting and receiving the wireless signal. The 丨 is formed by the i-conductor, and is disposed on the second surface of the substrate and connected to the vehicle through the through-hole.
接也口丨同;^為金屬賴所構成，設置於基板的第二表面並經由接地貫 孔連接H卩’且具杜缺口。該主缺口可㈣略為長方形，而主缺口的 方向由基板第二表面之輕向内延伸Q 知入線會通過接地部的主缺口，且中心導體(心線健接至馈入部，外層 接地導體連接至接地部。其巾，•線上所產生的逆向電流，會被主細 200816563 附近的接地部所吸收。 有關本發明的較佳實施例及其功效，兹配合圖式說明如后。 【實施方式】 請荼照「第4圖」紐低饋人線逆向電流的偶極天線之第—表面示意 圖，以及「第5圖」為降低饋入線逆向電流的偶極天線之第二表面示意圖。 基板〇0具有弟-表面32與第二表面34，以及饋入貫孔％與接地貫孔％ 貫穿第-表面32與第二表面34。第一表面32設置有輕射部4〇，用以收發 無線信號n面34設置有饋人部5G與接地部6G，且接地部⑼具有主 、^ ^射°卩4()、1认部5G及接地部60為金屬導體所構成。 參照「第4圖」可以看出韓射部4〇分為第一輕射區犯與第二輕射區 私，其中乐-輪射區42與第二輻射區44須滿足ι/4波長電氣長度，只要滿 賴波舰她嫩，第—咖42眼_ 44可以為任音幾 _狀。由「第4圖」可看㈣中，第—咖42為下型而 第一輻射區44约略為f|型。 V. 饋入貫孔36與接地貫孔38同樣貫穿基板3〇的第-表面32盘第二表 面-饋入部5呢經由饋人貫孔36與転射部”的㈣射區料 接。接地㈣咖她㈣Μ咖部辦㈣二難私連接。 接地部60更包含副缺口 64，對應於第 乂 上的輻射部40。接地 侧攻鎌口64，主細是當崎二表面％的接地㈣，斑位於 η面r的韓射部4〇’對應產生重叠時會影響天現輻射場型。因此，副 缺口 64的形狀與位置，主要是 免接地糊與輕射部如對應產生重叠， 7 200816563 而影響天線的輻射場型。 由「第5圖」可看出本發明的實施例中，副缺口 64位於主缺口 62兩 側，副缺口 64的缺口延伸方向與主缺口 62的缺口延伸方向相反，而對應 於第-表面32上㈣二_區44。使部份㈣二輻祕Μ相對位於第^ 表面34的副缺口 64，而不會與接地部6〇對應產生重疊。 口月钱弟6圖」為降低饋入線逆向電流的偶極天線之饋入結構。本 發明的偶極天線還包含了—條饋人線7()，主要是將無線傳輸裝置的電壓或 電流藉由饋入線70饋入到本發明的偶極天線。饋入線7〇會通過接地部⑼ 中的主缺π 62 ’且—端連接至饋入部5()與接地部⑼。當饋入線冗—端連 接至饋入部5〇與接地部6〇後，饋入部5〇經由饋入貫孔％與輕射部如中 的弟=畐射區42 _而導通。接地部6〇則經由接地貫孔％無射部如 中的苐一輪射區44連接而導通。 上述的饋入線7〇可以為同轴電鐵，而同輛魏包含中心導體7 層接轉體74，射外層接地導體74環繞中心導體72。由「m ί 2出同抽魏-端拉出中心導體72與饋入部50連接，同—端中的外岸 匕地導體74與接地部6〇連接 曰 口 62。 电、見另V會通過接地部60中的主缺 當中心導線72連接至饋入部5〇時， 同軸導如m ⑽〜通—正向電流，但由於 合古Γ 型傳輸線。所以當同鱗線流通正向電流日士， 曰雜電流流出至外層接地導體74外側，而形成逆向電流。了 但由於本發卿卜層接地導體74與接地部0G連接，且规㈣下方 200816563 具有主缺口 62，同時同軸電纜會通過該主缺口 62，如此的設計讓外層接地 導體74所鼓的勒電流，會被主缺π 62附近的接地部6()所吸收。 接地部60的主缺口 62的形狀須滿足二個條件，第—個條件是，必須 可以容納饋入線70通過。第二個條件是，接地部6〇、輕射部4〇及饋入部 5〇 ’整體總和的輸入阻抗約為5〇歐姆。只要滿足上述二個條件，接地部仞 的主缺口 62可以為任意幾何形狀。因此，主缺口⑽可以約略為長方形， 而主缺口 62的方向由基板3〇的第二表面％之邊緣向内延伸。 作說明，請參照「第7圖」〜「第1〇圖 ， ^，本發明更提出實際職的回馈損失、電壓駐波比和輕射場形圖 第7圖」〜「第1〇圖」係將本 j 發明之降低饋人線逆向電流的祕天線進行各項實驗峨，而取得之回饋 損失、電壓駐波比和輻射場形之實驗數據。 zIt is composed of a metal slab; it is composed of a metal lamella, and is disposed on the second surface of the substrate and connected to H 卩 ' via a ground via hole and has a short gap. The main notch can be (4) slightly rectangular, and the direction of the main notch extends from the light inward direction of the second surface of the substrate. Q The incoming wire passes through the main notch of the grounding portion, and the center conductor (the core wire is connected to the feeding portion, and the outer grounding conductor is connected). To the grounding portion, the reverse current generated on the wire and the wire will be absorbed by the grounding portion near the main thinner 200816563. The preferred embodiment of the present invention and its effects will be described later with reference to the drawings. Please refer to the first-surface diagram of the dipole antenna of the reverse current of the "lower line" of the "Fig. 4" and the second surface of the dipole antenna for reducing the reverse current of the feed line. 0 has a younger-surface 32 and a second surface 34, and a feed-through hole % and a ground-through hole % extend through the first surface 32 and the second surface 34. The first surface 32 is provided with a light-emitting portion 4〇 for transmitting and receiving wireless The signal n-plane 34 is provided with a feed portion 5G and a ground portion 6G, and the ground portion (9) has a main conductor, a metal portion 4G, and a ground portion 60. The reference portion is shown in FIG. It can be seen that the Korean Shooting Division 4 is divided into the first light shot area. It is private with the second light-spot area, wherein the music-rotation area 42 and the second radiation area 44 have to satisfy the electrical length of the ι/4 wavelength, as long as the wave is full of the ship, the first-day 42-eye 44 can be the tone _ shape. As can be seen from Fig. 4, the first coffee field 42 is of the lower type and the first radiation area 44 is approximately f| type. V. The feedthrough hole 36 and the grounding through hole 38 penetrate the substrate 3〇. The second surface of the first surface 32 disk-feeding portion 5 is connected to the (four) shot region of the squirting portion via the feedthrough hole 36. The grounding (four) coffee (four) Μ 部 部 ( (4) two difficult private connection. The sub-notch 64 is included, corresponding to the radiation portion 40 on the second side. The ground-side attack port 64, the main thin is the ground (4) of the surface of the surface of the second surface, and the spot is located at the surface of the n-plane r. It will affect the radiation pattern of the sky. Therefore, the shape and position of the sub-notch 64 are mainly caused by the overlap of the ground-free paste and the light-emitting part, which affects the radiation pattern of the antenna. See Figure 5 for the radiation pattern of the antenna. In the embodiment of the present invention, the auxiliary notches 64 are located on both sides of the main notch 62, and the notch extending direction of the sub-notch 64 and the notch extension of the main notch 62 The direction is opposite, and corresponds to the (four) two-zone 44 on the first surface 32. The partial (four) two-spoke secret is relatively located on the sub-notch 64 of the first surface 34, and does not overlap with the ground portion 6〇. Qian Di 6 diagram" is a feed structure for dipole antennas that reduce the reverse current of the feed line. The dipole antenna of the present invention also includes a strip feed line 7 (), mainly by using the voltage or current of the wireless transmission device. The feed line 70 is fed to the dipole antenna of the present invention. The feed line 7〇 passes through the main π 62 ' in the ground portion (9) and the end is connected to the feed portion 5 () and the ground portion (9). After being connected to the feeding portion 5A and the ground portion 6〇, the feeding portion 5〇 is electrically connected via the feeding through hole % and the light-emitting portion such as the middle portion 畐 区 42 . The ground portion 6A is connected to be connected via the grounding hole % non-emissive portion, such as the one-shot region 44. The feed line 7〇 may be a coaxial electric iron, and the same set of conductors includes a central conductor 7 layer connected to the rotating body 74, and the outer layer grounding conductor 74 surrounds the center conductor 72. The center conductor 72 is connected to the feed portion 50 by the "m ί 2", and the outer bank ground conductor 74 in the same end is connected to the ground portion 6 曰 to the port 62. The main defect in the grounding portion 60 is when the center wire 72 is connected to the feeding portion 5〇, and the coaxial guiding is like m (10) to the through-forward current, but due to the combined transmission line, the forward current is flowing as the same scale. The noisy current flows out to the outside of the outer layer grounding conductor 74 to form a reverse current. However, since the grounding conductor 74 of the present invention is connected to the grounding portion 0G, and the lower portion of the gauge (2008) has a main notch 62, the coaxial cable passes through the coaxial cable. The main notch 62 is designed such that the current drawn by the outer ground conductor 74 is absorbed by the ground portion 6 () near the main π 62. The shape of the main notch 62 of the ground portion 60 must satisfy two conditions, A condition is that it is necessary to accommodate the passage of the feed line 70. The second condition is that the input impedance of the total sum of the ground portion 6〇, the light-emitting portion 4〇, and the feed portion 5〇' is about 5 〇 ohms. Condition, the main notch 62 of the grounding portion can be Therefore, the main notch (10) may be approximately rectangular, and the direction of the main notch 62 extends inwardly from the edge of the second surface % of the substrate 3A. For the description, please refer to "Fig. 7" - "1st" 〇图, ^, the present invention further proposes the actual job feedback loss, voltage standing wave ratio and light field pattern diagram 7" ~ "1st map" is the secret antenna of the present invention to reduce the reverse current of the feeder line Experimental data obtained by performing various experiments and obtaining feedback loss, voltage standing wave ratio and radiation field shape. z
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第7圖」和「第8圖」為頻率範圍在2GHz〜3GHz所測得的回饋損失 一、SS)圖和電壓駐波比（VSWR)圖。接下來以頻率2 45GHz分別 在不同平面下，作輻射場形的實驗測試。「第9圖」為本發明應用於2·伽η 、 之幸田射立琢形Η驗數據圖。「第10圖」為本發明應用於2.45GH 了 υζ平面之輪射場形實驗數據圖。將「第關」的場形圖與「第2圖」 J琢化圖作比較，可以發現二張赫場形圖幾乎ϋ於「第2圖」為 …响私概心音之偶極天線應用於245邮時，义7平面之輻射場 輯圖，因此這__代表了當祕天線沒有受到逆㈣流的不良影響 ^理想的牵昌射場形應有的圖形。因此，經由「第10圖」與「第2圖」的 t匕集、名舎，'^汉日月1 吸 發明的偶極天線，能有效降低饋入線所產生的逆向電流。 9 200816563 因此，所產生的輻射場形與未受到逆 、，一、 』延向弘級衫響的偶極天線之輻射場形幾 手致。 —雖然本發_技術内容已經赠佳實施例揭露如上，然其並非用以限 定本發明’任何熟習此技藝者，在不聽本翻之精神所作些許之更動與 潤飾，皆應於本發明的範知，因此本發明之保護範圍當視後附之申 請專利範圍所界定者為準。 (__\ 【圖式簡單說明】 第1圖：習知技術中偶極天線連接饋入線示意圖。 Μ圖遶知技術中媒逆向電流景>響之偶極天線應用於2.45GHz時， YZ平面之輪射場形實驗數據圖。 弗3圖：習知技術中受逆向電流影響之偶極天線應用於2.45GHz時， Y-Z平面之輻射場形實驗數據圖。 第4圖：降低饋入線逆向電流的偶極天線之第一表面示意圖。 CJ 第5圖·降低饋入線逆向電流的偶極天線之第二表面示意圖。 第6圖：降低饋入線逆向電流的偶極天線之饋入結構。 第7圖：降低饋入線逆向電流的偶極天線之回饋損失量測數據圖。 弟8 Η·降低饋入線逆向電流的偶極天線之電壓駐波比量測數據圖。 第9圖：降低饋入線逆向電流的偶極天線應用於2.45GHz時，Χ-Υ平 _ 蚊細制彡實驗數據圖。 第10圖：降低饋入線逆向電流的偶極天線應用於2.45GHZ時，Y-Z平 10 200816563 面之輕射場形實驗數據圖。 , 【主要元件符號說明】 ί 1、// ·正向電流 :逆向電流 10 :彳^§極天線 20 :同軸電纜 30 :基板 C 32 ··第一表面 34 ··第二表面 36 :饋入貫孔 38 :接地貫孔 40 :輻射部 42 ··第一輻射區 44 :第二輻射區 ν ^ 50 :饋入部 60 :接地部 62 :主缺口 64 :副缺口 70 :饋入線 . 72:中心導體 74 :外層接地導體Fig. 7 and Fig. 8 are feedback losses measured in the frequency range of 2 GHz to 3 GHz. 1. SS) map and voltage standing wave ratio (VSWR). Next, the experimental test of the radiation field shape was carried out at different frequencies at 2 45 GHz. "Fig. 9" is a graph of the data of the Koda 射 琢 应用于 应用于 应用于 应用于 为本 。 。 。 。 。 。. "Fig. 10" is the experimental data of the wheel field shape applied to the 2.45 GH in the present invention. Comparing the field map of "No." with the "Fig. 2" J琢化图, we can find that the two Hertz-shaped maps are almost in the "2nd picture" for the dipole antenna of the private heart sound. At the time of mailing, the radiation field of the 7 plane is a map, so this __ represents the bad influence of the secret antenna (the flow of the antenna). Therefore, the dipole antennas of the "Fig. 10" and "Fig. 2" and the dipole antennas of the "^ Han Riyue 1" can effectively reduce the reverse current generated by the feed line. 9 200816563 Therefore, the radiation field shape generated is different from the radiation field shape of the dipole antenna that is not subjected to the inverse, and is extended to the Hong-level shirt. - Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention to anyone skilled in the art, and some modifications and refinements made without the spirit of the present invention are intended to be The scope of protection of the present invention is therefore defined by the scope of the appended claims. (__\ [Simple description of the diagram] Figure 1: Schematic diagram of the dipole antenna connection feed line in the prior art. The reverse phase current view of the medium in the schematic technique> The dipole antenna is applied to the 2.45GHz, YZ plane. The experimental data of the field shape of the wheel. Fig. 3: Experimental data of the radiation field shape of the YZ plane when the dipole antenna affected by the reverse current in the conventional technique is applied to 2.45 GHz. Fig. 4: Reducing the reverse current of the feed line Schematic diagram of the first surface of the dipole antenna CJ Figure 5 · Schematic diagram of the second surface of the dipole antenna that reduces the reverse current of the feed line. Figure 6: Feeder structure of the dipole antenna that reduces the reverse current of the feed line. : Reducing the feedback data of the dipole loss of the dipole antenna of the feed line reverse current. 8 Η · Reducing the voltage standing wave ratio measurement data of the dipole antenna of the feed line reverse current. Figure 9: Reducing the reverse current of the feed line The dipole antenna is applied to the experimental data of Χ-Υ平_ Mosquito fine crucible at 2.45 GHz. Figure 10: The dipole antenna of the feed line reverse current is applied to 2.45 GHz, YZ Ping 10 200816563 Shape experiment data chart , [Description of main component symbols] ί 1, / / · Forward current: Reverse current 10 : 彳 ^ § Antenna 20 : Coaxial cable 30 : Substrate C 32 · · First surface 34 · · Second surface 36 : Feed Through hole 38: Grounding through hole 40: Radiation portion 42 · First radiation region 44: Second radiation region ν ^ 50 : Feeding portion 60 : Ground portion 62 : Main notch 64 : Sub notch 70 : Feeding line. 72: Center Conductor 74: outer ground conductor