M435740 五、新型說明： 【新型所屬之技術領域】 本新型是有關於一種天線組合，特別是指一種用於一 無線通訊裝置以改善隔離度的天線組合。 【先前技術】 參閱圖1，是一種習知的天線組合，包含沿著X方向間 隔設置的一第一雙頻倒F型天線PIFA1及一第二雙頻倒F 型天線PIFA2。 第一及第二雙頻倒F型天線PIFA1、PIFA2各自包含一 接地部G、一用以共振出一第一頻帶的第一輻射臂R1、一 用以共振出一第二頻帶的第二輻射臂R2,及一電連接第一 及第二輻射臂的短路臂S。其中，第一及第二雙頻倒F型天 線PIFA1、PIFA2的接地部G是共同電連接於一導體片G’ (例如筆記型電腦之顯示器殼體内的屏蔽板）。 在早期的應用上，第一及第二雙頻倒F型天線PIFA1、 PIFA2皆是應於無線區域網路（LAN )的系統，以達到分集 (diversity )的效果，所以第一及第二雙頻倒F型天線 PIFA1、PIFA2的隔離度只需低於-20 dB即可，但近年來則 將第二雙頻倒F型天線PIFA2另外應用於藍芽系統，且基 於相關通訊規範，第一及第二雙頻倒F型天線PIFA1、 PIFA2的隔離度就需低於-25 dB。 參閱圖2，是上述習知的第一及第二雙頻倒F型天線 PIFA1、PIFA2的S參數圖，其中，S11參數曲線是相關於 第一雙頻倒F型天線PIFA1之饋入點P1的返回損失，S22 3 參數曲較相關於第：雙頻倒F型天線PIFA2之饋入點P2 的返回損失，S21參數曲線是代表第—及第二雙頻倒F型天 線之兩饋入點n、P2之間的隔離度：當第一及第二雙頻倒 F型天線PIFA1、PIFA2兩者間的距離d為259公釐時，於 2.45GHz的隔離度只有-20 riTj m u dB，因而無法同時滿足無線區域 網路及藍芽的應用。 【新型内容】 因此，本新型之第_θ6/ι Β ^ 弟目的，即在提供一種用於一無線 通訊裝置的天線組合》 於是’本新型用於一無線通訊裝置的天線組合包含一 第線帛一天線、一第一隔離臂及一第二隔離臂。 第一天線包括一第一接地部、-第-輻射臂及-用以 傳遞了射頻訊號的第-饋入點。第二天線與第一天線相間 ’並包括-第二接地部、—第二輻射臂及一用以傳遞另 一射頻訊號的第二饋入點。第一隔離臂位於第一天線及第 二^線之間’且電連接第一接地部，並與第一接地部共同 界疋出具有#口的第一槽，且第一輕射臂是位於第一 槽中。第二隔離臂位於第一隔離臂及第二天線之間，且電 連接第二接地部’並與第二接地部共同界定出一具有一開 口的第二槽’且第二槽的開口與第_槽的開口互為反向， 第二輻射臂是位於第二槽中。 而本新型之第：目的，即在提供—種無線通訊裝置。 於是，本新型無線通訊裝置包含一系統電路、一上述 的天線組合、一第一饋電元件及一第二饋電元件。系統電 M435740 路具有—第一通訊模組及一第二通訊模組。第一饋電元件 電連接於第一通訊模組及第一天線之間，用以傳遞一射頻 訊號。第二饋電元件電連接於第二通訊模組及第二天線之 間’用以傳遞另一射頻訊號。 本新型之功效在於：以第一及第二隔離臂隔離第一天 線與第二天線之間的能量傳遞，進而改善第一及第二天線 間的隔離度。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 乂下配5參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖3及圖4，本新型無線通訊裝置之較佳實施例包 含一系統電路9、-天線組纟刚、一第一饋電元件职及 一第二饋電元件W2。而其中值得注意的是，圖3所示的天 線組合100雖是設置於一筆記型電腦之顯示器的上方，但 圖3的言史置方式僅為示意，實際應用時並不以此為限，而 可將天線組合100設置於例如顯示器的下方、鍵盤侧及 螢幕樞接處等，或是設置於筆記型電腦之外的其它裝置。 系統電路9包括-用於無線區域網路的第__通訊模組 (圖未示）’及一用於藍芽的第二通訊模組（圖未示）。 天線組合100的第—種實施態樣包括一第一天線、 -與第-天線A1相間隔的第二天線A2、_第一隔離臂1 及一第二隔離臂1，。 第-天線A1具有一第一接地部G1、一第一輻射臂2、 5 第二輕射臂3、一第一短路臂4及一第一饋入點F1。 第-隔離臂1位於第一天線A1及第二天線A2之間， 2連接第-接地部G1，並與第一接地部gi #同界定出 、有開口的第一槽5。更詳細地說，第一隔離臂1實質 呈倒L形但不以此為限，還可以是弧形具有彎折等的 ^ 、並具有一第一耦合段11。第一輻射臂2位於第一槽5 中並與第—耦合段11間隔重疊以產生電容耦合，於本較 實施例中，第一輻射臂2與第-柄合段11相間隔一間距 較佳地’間距D1介於ου眶之間，且間距m越 丨則第-天線A1之縮小化的效果越明顯。第三輻射臂3電 連接第-輻射臂2,並位於第_槽5外。第一短路臂4實質 =呈一 U形並位於第—槽5 +，且具有—電連接第一轄射 :2及第三輻射臂3的第-端部41，及—電連接第一接地 p G1的第_ 4部42 ’值得注意的是，雖，然第—短路臂4於 本較佳實轭例是完全位於第一槽5中但第一短路臂4也 可以部分位於第—# 5中且部分位於第—槽$外。而為了 調整第-天線A1的阻抗匹配（S11參數），第三賴射臂3還 具有-第-封閉槽3卜且第一天線A1用以傳遞一射頻訊號 的第一饋入點F1是鄰近第一封閉槽31。 第天線A2具有一第一接地部G2、一第二隔離臂1， 、一第二輻射臂2’、一第四輻射臂3，、一第二短路臂4,及 一第二饋入點F2。 第二隔離臂Γ位於第一隔離臂i及第二天線A2之間， 且電連接第二接地部G2,並與第二接地部G2共同界定出 M435740 -具有-開口的第二槽5’，且第二样 的開口互為反向。更詳細地 二+的開口與第-槽5M435740 V. New Description: [New Technology Field] The present invention relates to an antenna combination, and more particularly to an antenna combination for use in a wireless communication device to improve isolation. [Prior Art] Referring to Fig. 1, a conventional antenna combination includes a first dual-frequency inverted-F antenna PIFA1 and a second dual-frequency inverted-F antenna PIFA2 disposed along the X-direction interval. The first and second dual-frequency inverted-F antennas PIFA1 and PIFA2 each include a ground portion G, a first radiating arm R1 for resonating a first frequency band, and a second radiation for resonating a second frequency band. An arm R2, and a shorting arm S electrically connected to the first and second radiating arms. The ground portions G of the first and second dual-frequency inverted F-type antennas PIFA1 and PIFA2 are electrically connected in common to a conductor piece G' (for example, a shield plate in a display case of a notebook computer). In the early applications, the first and second dual-frequency inverted-F antennas PIFA1 and PIFA2 were all implemented in the wireless local area network (LAN) system to achieve the diversity effect, so the first and second pairs The isolation of the frequency-inverted F-type antennas PIFA1 and PIFA2 only needs to be lower than -20 dB, but in recent years, the second dual-frequency inverted-F antenna PIFA2 is additionally applied to the Bluetooth system, and based on the relevant communication specifications, the first And the isolation of the second dual-frequency inverted F-type antennas PIFA1, PIFA2 needs to be lower than -25 dB. Referring to FIG. 2, it is an S-parameter diagram of the above-mentioned first and second dual-frequency inverted-F antennas PIFA1 and PIFA2, wherein the S11 parameter curve is related to the feeding point P1 of the first dual-frequency inverted-F antenna PIFA1. The return loss, S22 3 parameter curve is more related to the return loss of the feed point P2 of the second-frequency inverted-F antenna PIFA2, and the S21 parameter curve represents the two feed points of the first-and second-frequency inverted-F antennas. Isolation between n and P2: When the distance d between the first and second dual-frequency inverted-F antennas PIFA1 and PIFA2 is 259 mm, the isolation at 2.45 GHz is only -20 riTj mu dB, thus Cannot meet wireless LAN and Bluetooth applications at the same time. [New content] Therefore, the _θ6/ ι Β ^ brother of the present invention aims to provide an antenna combination for a wireless communication device. Thus, the antenna combination for a wireless communication device of the present invention includes a first line. An antenna, a first isolation arm and a second isolation arm. The first antenna includes a first ground portion, a -th radiating arm, and a first feed point for transmitting an RF signal. The second antenna is interposed between the first antenna and includes a second ground portion, a second radiating arm, and a second feed point for transmitting another RF signal. The first isolation arm is located between the first antenna and the second wire and is electrically connected to the first ground portion, and is combined with the first ground portion to take out a first slot having a # port, and the first light arm is Located in the first slot. The second isolation arm is located between the first isolation arm and the second antenna, and electrically connects the second ground portion 'and together with the second ground portion defines a second slot having an opening and the opening of the second slot The openings of the first slot are opposite each other, and the second radiating arm is located in the second slot. The purpose of the present invention is to provide a wireless communication device. Thus, the novel wireless communication device comprises a system circuit, an antenna assembly, a first feed element and a second feed element. System Power M435740 has a first communication module and a second communication module. The first feeding component is electrically connected between the first communication module and the first antenna for transmitting an RF signal. The second feed element is electrically connected between the second communication module and the second antenna to transmit another RF signal. The effect of the novel is to isolate the energy transmission between the first antenna and the second antenna by the first and second isolation arms, thereby improving the isolation between the first antenna and the second antenna. [Embodiment] The foregoing and other technical contents, features and effects of the present invention will be apparent from the detailed description of a preferred embodiment of the present invention. Referring to Figures 3 and 4, a preferred embodiment of the novel wireless communication device includes a system circuit 9, an antenna assembly, a first feed component, and a second feed component W2. It should be noted that the antenna assembly 100 shown in FIG. 3 is disposed above the display of a notebook computer, but the history mode of FIG. 3 is only for the purpose of illustration, and the actual application is not limited thereto. The antenna assembly 100 can be disposed, for example, under the display, on the keyboard side, at the pivot of the screen, or the like, or other devices disposed outside the notebook. The system circuit 9 includes a __ communication module (not shown) for the wireless local area network and a second communication module (not shown) for the Bluetooth. The first embodiment of the antenna assembly 100 includes a first antenna, a second antenna A2 spaced apart from the first antenna A1, a first isolation arm 1 and a second isolation arm 1. The first antenna A1 has a first grounding portion G1, a first radiating arm 2, a second radiating arm 3, a first shorting arm 4 and a first feeding point F1. The first isolation arm 1 is located between the first antenna A1 and the second antenna A2, 2 is connected to the first ground portion G1, and defines a first slot 5 having an opening together with the first ground portion gi#. In more detail, the first isolation arm 1 is substantially inverted L-shaped but not limited thereto, and may have a curved shape or the like and has a first coupling section 11. The first radiating arm 2 is located in the first slot 5 and overlaps with the first coupling section 11 to generate a capacitive coupling. In the present embodiment, the first radiating arm 2 is spaced apart from the first shank section 11 by a distance. The grounding distance D1 is between ου眶, and the more the pitch m is, the more significant the effect of the reduction of the first antenna A1 is. The third radiating arm 3 is electrically connected to the first radiating arm 2 and is located outside the first trough 5. The first short-circuiting arm 4 is substantially U-shaped and located in the first slot 5+, and has a first end portion 41 electrically connected to the first radiant: 2 and the third radiating arm 3, and is electrically connected to the first ground. The fourth portion 42' of p G1 is notable, although the first short-circuit arm 4 is completely located in the first slot 5 in the preferred embodiment, but the first short-circuit arm 4 may be partially located at the first -# 5 and part of it is located outside the first slot. In order to adjust the impedance matching of the first antenna A1 (S11 parameter), the third viewing arm 3 further has a -first closed slot 3 and the first feeding point F1 of the first antenna A1 for transmitting an RF signal is Adjacent to the first closed slot 31. The first antenna A2 has a first grounding portion G2, a second isolation arm 1, a second radiating arm 2', a fourth radiating arm 3, a second shorting arm 4, and a second feeding point F2. . The second isolation arm is located between the first isolation arm i and the second antenna A2, and is electrically connected to the second ground portion G2, and together with the second ground portion G2 defines a M435740 - a second slot 5 having an opening And the second openings are opposite each other. In more detail, the opening of the two + and the slot 5
形但不以此為限’還可以是弧形、：有離:1:實質地呈倒L 具有一第二耦合段u，。第_ 、 等的形狀，並 與第二麵合段η，間隔重臂2,位於第二槽5,中，並 间隔重疊以產生電宏為人Shape, but not limited to this, can also be curved,: there is: 1: substantially inverted L has a second coupling segment u. The shape of the first _, and so on, and the second surface η, the spacer arm 2, located in the second slot 5, and overlapped to generate an electric macro
例中，第二輕射臂2,與第二輕合段D，於本較佳實施 較佳地，間距m介於…咖之間^搞一間距於， 二天線A2之縮小化的功效越明顯距D2越小則第 二輻射臂2,，並位於第-样 四5射臂3,電連接第 於第_槽5外。第二短 —ϋ形並位於第二槽 ^只質地呈 η您i T且具有—電連接第二輕射臂2, 及第四輻射臂3,的第-端部41， 射^ 2 G2 66 ^ ， 電連接第二接地部 —° 42’，值得注意的是，雖然第二短路臂4,於 二圭實施例是完全位於第二槽5，中但第二短路臂4,也 可以。卩分位於第二槽5’中且部分位於第二In the example, the second light arm 2 and the second light combination D, in the preferred embodiment, the spacing m is between the coffee and the spacing, and the effect of the reduction of the two antennas A2 is higher. The smaller the apparent distance D2 is, the second radiating arm 2 is located at the first-like quad 5 arm 3, and the electrical connection is outside the first-slot 5. The second short-ϋ shape is located in the second slot, and the texture is η, and has the first end portion 41 of the second light arm 2 and the fourth radiation arm 3, and the second end portion 41, the beam 2 G2 66 ^, electrically connected to the second ground portion - ° 42 ', it is worth noting that although the second short-circuit arm 4, in the second embodiment, is located in the second slot 5, but the second short-circuit arm 4, may also be. The split is located in the second slot 5' and partially in the second
調整阻抗匹配（S22參數），第四輕射臂/還具有 閉槽31’ ’且第二天線A2用以傳遞另—射頻訊號的第二饋 入點F2是鄰近第二封閉槽31，。 第—饋電元件W1電連接於系統電路9的第—通訊模植 及第一天線A1的第一饋入點F1之間，第二饋電元件W2 電連接於系統電路9的第二通訊模組及第二天線A2的第二 饋入點F2之間。第一及第二饋電元件W1、W2可為五十歐 姆同軸電纜線，但不以此為限。 在本較佳實施例中’第一天線A1是雙頻倒F型天線， 且用以提供一第一共振模態的—第一電流路徑C1是從第一 7 M435740 饋入點F1經過第一輻射臂2、第-隔離臂！到達第一接地 部CH’用以提供-第二共振模態的_第二電流路徑〇是 從第-饋入點Π經過第一短路臂4到達第一接地部⑴， 用以提供一第三共振模態的—第三電流路捏C3是從第一饋 入點F1 .經過第三輯射臂3 ’並且，第—電流路徑U長於第 二電流路徑C2’第二電流路徑C2又長於第三電流路徑Ο ;此外’由於第二天線A2與第二隔離臂i，是第—天線Μ 與第-隔離臂1的鏡像結構’因而具有近似的電流分佈型 態，故於此不再贅述。 參閱圖4及圖5,顯示基於第一及第二天線幻、八2的 一距離D為259 mm時，第一天線A1之su參數第二天 線A2之S22參數’及第一及第二天線A1、A2之s2i參數 各自對頻率變化的曲線圖。從上述的參數曲線可以得證： 相較習知的天線組合（見圖〇，本較佳實施例之天線組合 1〇〇的第一種實施態樣確實可以達到小M_25dB的較佳隔離 度’且改善隔離的效果確實是基於SU及522參數於 2-4-2.5 GHz及5.15〜5.85 GHz都小於-HMB的前提所得到， 而非來自於阻抗不匹配而導致的隔離改善。並且，第—電 流路杈C1用以產生涵蓋2.4〜2.5 GHz之頻帶的一第一共振 模態’第二電流路徑C2用以產生鄰近5.15 GHz之頻帶的 第二共振模態，第三電流路徑C3用以產生鄰近5.85 GHz 之頻帶的一第三共振模態，且第二及第三共振模態共同涵 蓋 5.15~5.85 GHz 的頻帶。 參閱圖6 ’天線組合i〇〇的第二種實施態樣與第一種實The impedance matching (S22 parameter) is adjusted, the fourth light arm/there is also a closed slot 31'' and the second feed point F2 of the second antenna A2 for transmitting another RF signal is adjacent to the second closed slot 31. The first feed element W1 is electrically connected between the first communication module of the system circuit 9 and the first feed point F1 of the first antenna A1, and the second feed element W2 is electrically connected to the second communication of the system circuit 9. Between the module and the second feed point F2 of the second antenna A2. The first and second feed elements W1, W2 may be fifty-ohms coaxial cable, but are not limited thereto. In the preferred embodiment, the first antenna A1 is a dual-frequency inverted-F antenna and is used to provide a first resonant mode. The first current path C1 is from the first 7 M435740 feed point F1. A radiation arm 2, a first - isolation arm! The second current path 到达 reaching the first grounding portion CH' for providing the second resonant mode is from the first feeding point Π through the first shorting arm 4 to the first grounding portion (1) for providing a third The third current path pinch C3 of the resonant mode is from the first feed point F1. After the third arm 3', and the first current path U is longer than the second current path C2', the second current path C2 is longer than the second The three current paths Ο; in addition, since the second antenna A2 and the second isolation arm i are the mirror structures of the first antenna Μ and the first isolation arm 1 and thus have an approximate current distribution pattern, the description will not be repeated here. . Referring to FIG. 4 and FIG. 5, the S22 parameter of the second antenna A2 of the first antenna A1 and the first and the first are displayed based on the first and second antennas, and a distance D of 八 is 259 mm. A plot of the respective s2i parameters of the second antennas A1, A2 versus frequency. It can be proved from the above-mentioned parameter curve: Compared with the conventional antenna combination (see FIG. 〇, the first embodiment of the antenna combination 1〇〇 of the preferred embodiment can achieve a better isolation of small M_25dB' And the effect of improving isolation is indeed based on the premise that SU and 522 parameters are less than -HMB at 2-4-2.5 GHz and 5.15~5.85 GHz, rather than isolation improvement due to impedance mismatch. The current path C1 is used to generate a first resonant mode 'the second current path C2' covering the frequency band of 2.4 to 2.5 GHz for generating a second resonant mode adjacent to the 5.15 GHz band, and the third current path C3 is used to generate A third resonant mode adjacent to the 5.85 GHz band, and the second and third resonant modes together cover the 5.15~5.85 GHz band. See Figure 6 'The second embodiment of the antenna combination i〇〇 and the first Real