M349050 八、新型說明： 【新型所屬之技術領域】 本創侧於-種手_個_形天線，尤指—種可使麟金屬外殼 或非金屬外殼手機之環形天線。 【先前技術】 Λ _ I機_電路板上必需連接—天線’以作鳩的收發。級手機緊實 ^化的要求及趨勢，天線所佔用的空間也相對縮減。在手機天線中以環形天 線（1〇〇Ρ破）來縮小佔用空間，是已經使用的技術。 傳統上此㈣形天線是以條狀的金鱗體職設置於手齡殼内並愈 電路板上的迴路作導電性的連通，以達到手機多操作頻段使用的功效。 *然而’树手機之外殼為了某麵素而細金屬外辦，由於金屬外 已覆於衣形天線外’會產生遮蔽作用使訊號減弱使得環形天線難以使 用於金屬外殼手機中，此為業界極待改善之問題點。 【新型内容】 點，本創作設計了 手機之環形天線，該環形天線具有一 有鑑於習知環形天線無法使用於金屬外殼手機之缺 -種可使用於金屬外殼或非金屬外殼 娜部’係沿著手機之電路板之邊緣環繞；―接地端位在該獅部之一末 端，並連接至電路板上的-地面；而_饋入端位在環形部之另一末端，並 連接至電路板以作訊號輸人；並在環形部之中間位置予以截斷，以形成兩 截斷端。該兩截斷端在該手機是金屬外殼時，被導電性的連接至該金屬外 5 M349050 殼；該兩截斷端在該手機是非金屬外殼時，則被短路連通。 藉由本創作所提的環形天線設計概念’在使驗金屬外殼手機内時， 金屬外殼可覆蓋於獅天線上並#作天線的部份，克服習知金屬外殼覆蓋 天線會產生遮蔽影響天線效率之問題。_，只要將該環形天線的兩截斷 端予以短_接’職獅域也可使用在非金料殼的手機卜這樣， 將可大幅節省手機天線之成本。 $，摘作的獅讀在製作時，可以是被制在電路板上的，也可 丨 以是與電路板分離的 以下，將依據圖面所示之實施例而詳加說明本創作之結構及使用功效。 【實施方式】 θ參見第圖至第二圖，係為本創作環形天線1的—種實施例，其係 =在手機2 (參見第四圖）之外殼21、22、23内的一電路板24上。 環形天線1係以—環形部1 1、—接地端12、-饋人端！3及兩截斷端 14所構成。 衣幵/ IU 1，係沿著手機2之電路板2 4之邊緣環繞；而接地端1 2 位在環形部1 1之—古*山w . 末^，並連接至電路板2 4上的一地面2 5 ;而饋入 端13位在環形部1 1之 m 力一末鸲，並連接至電路板2 4以作訊號輸入。 / iu 1之中間位置予以截斷，以形成兩截斷端1 4。 —本幻作的％形天線1設計下’當手機2是金屬外毁時，例如第四圖所 示上下兩側的外殼21另9 〇 * 久匕d為金屬，而中間連接的外殼2 2為塑膠，則 將兩截斷端1 4導雷，括沾、电 的連接至金屬外殼2 1，使該金屬外殼2 1當作天 6 M349050 線的部份，以排除金屬外殼對環形天線產生之遮蔽問題。但當手機2是非 金屬外殼時，例如第四圖所示的上中下側外殼2丄、2 2、2 3皆為塑膠 時’則只要將兩截斷端14予以短路連通即可。 為清楚說明本實施例之環形天線i之環繞情形，參見第一圖並配合第 二圖及第三圖’在圖中所示之’環形天線i自接地端i 2起，連接以電路 板2 4頂侧的第-段1 1 a ’經第二段丄丄b穿過電路板2 4的底側，再 以Π型的第二段11 c沿電路板2 4的底側邊緣環繞，並以第四段1 1d 再穿過電路板24回至頂側，以形成兩截斷端14，然再連接第五段丄工 f，最後以饋入端13連接至電路板2 4之迴路中，以作訊號輸入。 顯然地，本創作所提供的之環形天線1，在使用於金屬外殼手機内時， 金屬外殼可覆蓋於環形天線1上並當作天線的部份，克服習知金屬外殼覆 蓋天線會產生遮蔽影響天線效率之問題。 參見第五圖’係為第-圖至第三圖所示本創作環形天線實施例測試與 金屬外设連接的VSWR®，而第六酬為不加金屬外殼（可視為使用於非金 屬外殼手機中）的VSWR圖。 頻率 Frequency (MHz) 電壓駐波比 VSWR 方向性 Directivity (dBi) mE Gain (dBi) —輻射效率 Radiation Eff (%) 匹配效率 Mismatch Eff 總效率 Total Eff 880 1.8 4.16 0.84 46.51 90.85 \ /0) 42.25 920 2.1 3.26 2.29 79.85 86.95 69.44 960 1.2 4.48 2.73 66.83 97.85 65.4 1710 3.9 5.47 2.84 54.6 66.88 36.52 1800 4.4 5.96 4.12 65.49 56.44 36.96 1880 5 5.49 3.53 63.66 55.75 35.49 ___1990 1.8 4.29 1.98 58.68 90.21 52.94 2170 2.8 5.77 3.99 66.43 80.71 53.62 下表則為測試與金屬外殼連接的三維增益(3D Gain): System 7 M349050M349050 VIII. New description: 【New technical field of the invention】 This invention is a kind of antenna that can be used for a mobile phone or a non-metallic outer casing. [Prior Art] Λ _ I machine _ circuit board must be connected - antenna 'for transmission and reception. The requirements and trends of the level of mobile phone tightening, the space occupied by the antenna is also relatively reduced. It is a technique that has been used to reduce the footprint in the antenna of the mobile phone with a circular antenna (1 〇〇Ρ). Traditionally, the (four)-shaped antenna is arranged in a strip-shaped scale body in the hand-aged shell and the circuit on the circuit board is electrically connected to achieve the effect of using the multi-operating frequency band of the mobile phone. *However, the shell of the tree phone is made of thin metal for a certain surface. Because the metal is covered by the outer shape of the clothes-shaped antenna, it will have a shielding effect, so that the signal is weakened, making the loop antenna difficult to use in the metal case mobile phone. The problem to be improved. [New content] Point, this design has designed a loop antenna for mobile phones. The loop antenna has a lack of a conventional ring antenna that cannot be used in a metal case. It can be used for metal casings or non-metallic casings. Surrounded by the edge of the circuit board of the mobile phone; the grounding end is at one end of the lion and connected to the ground on the circuit board; and the _feeding end is at the other end of the ring and connected to the circuit board The signal is input; and is cut off in the middle of the ring to form two truncated ends. The two cut ends are electrically connected to the metal outer 5 M349050 shell when the mobile phone is a metal outer casing; the two cut ends are short-circuited when the mobile phone is a non-metallic outer casing. With the loop antenna design concept proposed by the present invention, when the metal casing is used in the mobile phone, the metal casing can cover the lion antenna and the antenna portion. Overcoming the conventional metal casing covering the antenna will cause shielding to affect the efficiency of the antenna. problem. _, as long as the two cut ends of the loop antenna are short-connected, the lion field can also be used in mobile phones with non-gold shells, which will greatly reduce the cost of the mobile phone antenna. $, the extracted lion reading can be made on the circuit board at the time of production, or it can be separated from the circuit board. The structure of the creation will be described in detail according to the embodiment shown in the figure. And use efficiency. [Embodiment] θ Referring to the first to second figures, it is an embodiment of the loop antenna 1 of the present invention, which is a circuit board in the casing 21, 22, 23 of the handset 2 (see the fourth figure). 24 on. The loop antenna 1 is connected to the ring portion 1 1 , the ground terminal 12 , and the feed end! 3 and two cut ends 14 are formed. The placket / IU 1 is wrapped around the edge of the circuit board 2 4 of the mobile phone 2; and the grounding end 12 is located at the end of the ring portion 1 - ancient * mountain w. end ^, and is connected to the circuit board 24 A ground 2 5; and the feed end 13 is at the end of the ring portion 1 1 and connected to the circuit board 24 for signal input. The middle position of / iu 1 is cut off to form two truncated ends 14 . - The % antenna 1 of this illusion is designed as 'When the mobile phone 2 is damaged by metal, for example, the outer casing 21 on the upper and lower sides shown in the fourth figure is 9 〇* long time d is metal, and the outer connecting housing 2 2 For plastic, the two ends of the 14-lead lightning guide, including the dip and electric connection to the metal casing 2 1, make the metal casing 2 1 as part of the day 6 M349050 line, to exclude the metal casing from the loop antenna. Masking problems. However, when the mobile phone 2 is a non-metallic casing, for example, when the upper middle and lower casings 2, 2 2, and 2 3 shown in the fourth figure are plastic, the two cut ends 14 may be short-circuited. To clearly illustrate the surrounding situation of the loop antenna i of the present embodiment, refer to the first figure and cooperate with the second diagram and the third diagram 'the loop antenna i shown in the figure from the ground terminal i 2, connected to the circuit board 2 The top section 1 1 a ' of the top side passes through the bottom side of the circuit board 24 through the second section 丄丄b, and then surrounds the bottom side edge of the circuit board 24 by the second section 11 c of the Π type, and Returning to the top side through the circuit board 24 with the fourth segment 11d, to form two cut ends 14, and then connecting the fifth stage of the workf, and finally connected to the circuit board 24 by the feed end 13 For signal input. Obviously, when the loop antenna 1 provided by the present invention is used in a metal casing mobile phone, the metal casing can cover the loop antenna 1 and serve as a part of the antenna, which overcomes the shielding effect caused by the conventional metal casing covering the antenna. The problem of antenna efficiency. See Figure 5 for the VSWR® test for the loop antenna embodiment shown in Figures 1-3 to the metal ring. The sixth pay is for the metal case (see the use for non-metallic case phones). Medium) VSWR diagram. Frequency Frequency (MHz) Voltage Standing Wave Ratio VSWR Directionality Directivity (dBi) mE Gain (dBi) - Radiation Efficiency Radiation Eff (%) Matching Efficiency Mismatch Eff Total Efficiency Total Eff 880 1.8 4.16 0.84 46.51 90.85 \ /0) 42.25 920 2.1 3.26 2.29 79.85 86.95 69.44 960 1.2 4.48 2.73 66.83 97.85 65.4 1710 3.9 5.47 2.84 54.6 66.88 36.52 1800 4.4 5.96 4.12 65.49 56.44 36.96 1880 5 5.49 3.53 63.66 55.75 35.49 ___1990 1.8 4.29 1.98 58.68 90.21 52.94 2170 2.8 5.77 3.99 66.43 80.71 53.62 To test the 3D gain (3D Gain) connected to the metal case: System 7 M349050
下表則為測試不加金屬外殼的三維增益（3D Gain): 系統 System 頻率 Frequency (MHz) nmmm.it VSWR 方向性 Directivity (dBi) 增益 Gain (dBi) 輻射效率 Radiation Eff (%) 不匹配效率 Mismatch Eff 總效率 Total Eff (%) 880 2.7 1.99 -2.02 39.61 78.57 31.12 920 2.9 2.08 -1.39 44.92 75.26 33.8 960 3.4 2.12 -1.08 47.77 69.38 33.14 1710 1.8 3.01 -0.42 45.35 91.22 41.37 1800 3.8 3.85 1.1 53.14 65.76 34.94 1880 4.3 4.09 1.85 59.72 60.87 36.36 1990 3.2 4.42 2.31 61.57 71.71 44.15 2X70 2.7 4.47 0.1 36.57 77.94 28.5 由以上圖表’可知本實施例確實可使用於金屬外殼或非金屬外殼手機 中，以得到良好的多個操作頻段。 進者’本創作的環形天線1在製作時，可以是被蝕刻在電路板2 4上 的也可以疋與電路板2 4分離的，這是很簡單的變化，不另以圖面說明， 但仍屬於本轉利範_護之中。 【圖式簡單說明】 —圖代表本鱗之挪天線職—電路板之立體圖，其巾電路板以虛線 表示， ^ _ 4^摘作之勤彡天線環繞電路板之棚視®， Γ圖代表本崎之獅天線職板之底纖圖， =四圖代表本_之環形天線使手機之分解圖，The following table shows the three-dimensional gain (3D Gain) of the uncoated metal case: System System Frequency Frequency (MHz) nmmm.it VSWR Directionality (dBi) Gain Gain (dBi) Radiation Efficiency Radiation Eff (%) Mismatch Efficiency Mismatch Eff Total efficiency Total Eff (%) 880 2.7 1.99 -2.02 39.61 78.57 31.12 920 2.9 2.08 -1.39 44.92 75.26 33.8 960 3.4 2.12 -1.08 47.77 69.38 33.14 1710 1.8 3.01 -0.42 45.35 91.22 41.37 1800 3.8 3.85 1.1 53.14 65.76 34.94 1880 4.3 4.09 1.85 59.72 60.87 36.36 1990 3.2 4.42 2.31 61.57 71.71 44.15 2X70 2.7 4.47 0.1 36.57 77.94 28.5 From the above diagram, it can be seen that this embodiment can indeed be used in metal casings or non-metallic casings for good operating frequency bands. The loop antenna 1 of the present invention can be etched on the circuit board 24 or separated from the circuit board 24 at the time of manufacture. This is a very simple change, and is not illustrated in the drawings. Still belongs to this transfer of _ _ protection. [Simple diagram of the diagram] - The diagram represents the perspective of the antenna of the scale - the perspective view of the circuit board, the towel circuit board is indicated by the dotted line, ^ _ 4^ is the diligent antenna around the board of the shield, the diagram represents The bottom fiber diagram of the singer's antenna platform, the four diagrams represent the exploded view of the mobile phone.
弟五圖代表本創作夕pP <衣形天線測試與金屬外殼連接的VSWR圖， 第六圖代表本創作 之裱形天線測試不與金屬外殼連接的VSWR圖。 8 M349050 【主要元件符號說明】 環形天線1 環形部1 1 第一段1 1 a 第二段11b 第三段11c 第四段11d 第五段11f 接地端1 2 饋入端1 3 截斷端1 4 手機2 外殼21、2 2、2 3 電路板2 4 地面2 5The fifth figure represents the VSWR diagram of the pP <cloth antenna test and the metal casing connection, and the sixth diagram represents the VSWR diagram of the chop antenna test of the present invention not connected to the metal casing. 8 M349050 [Description of main component symbols] Loop antenna 1 Ring portion 1 1 First segment 1 1 a Second segment 11b Third segment 11c Fourth segment 11d Fifth segment 11f Ground terminal 1 2 Feeding terminal 1 3 Cutting end 1 4 Mobile phone 2 housing 21, 2 2, 2 3 circuit board 2 4 floor 2 5