M349049 八、新型說明： 【新型所屬之技術領域】 摘作涉及-種多頻天線，尤其涉及—種用於手持式 電子產品上的多頻天線。 【先前技術】 ，#’隨著無線傳輸技術的蓬勃發展，各種採用無線傳 書輸的手持式電子產品應運而生，該等手持式電子產品皆需 配置有天線，以收發電磁波信號。當前手持式電子產品不 僅要具有精巧外型’且要適應現行不同的無線通訊標準， 因此手持式電子產品上的天線要求佔用空間小與涵蓋多個 無線通訊頻段。 當刖的天線多為倒F形天線(Planar Inverted-F Antenna， PIFA)、單極天線（Monopole Antenna)及迴路天線（Loop 鲁 Antenna)，現有用於通訊領域的協議有GSM850、GSM900、 - DCS1800、PCS1900、WCDMA2000 等。惟，上述各種天線 皆難以滿足具備多頻收發能力且面積小的要求，出現減少 佔用空間與涵蓋多個無線通訊頻段不能同時兼顧的問題。 【新型内容】 本創作目的係針對上述習知技術之不足而提供一種佔 用空間小且能收發多個頻帶電磁波的多頻天線。 M349049 為達成上述目的，本創作所提供的多頻天線包括一基 部、一第-天線部、-第二天線部、—饋人部及—接地部。 . 祕部具有第—邊緣及連接第-邊緣的第二邊緣，基部從 .S二邊緣向内_有-_。該第-天線部係從第一邊緣 處延伸而成，並具有-側緣。該第二天線部具有一從第一 ，韓部的側緣延伸且與基„隔—距離的連接部及由連接 φ 冑末端向外延伸_射部’該輻射部包括由連接部的末端 垂直向外延伸的第-橫向部、由第一橫向部的末端朝向第 一天線部垂直延伸的縱向部、由縱向部末端垂直向外延伸 的第二橫向部及由第二橫向部末端向上延伸的擴展部。該 饋入部係由基部位于开槽一侧的部分形成，該饋入部上設 置有-饋入點。該接地部係由基部位于开槽另一侧的部分 开/成，该接地部上設置有一接地點。 如上所述，本創作多頻天線藉由第一天線部和第二天 •、線部，可收發多個頻帶的訊號；且由於第二天線部係從第 —天線部的側緣延伸而出，並具有從第—邊緣垂直延伸且 與基部間隔-距離的連接部及由連接部末端向遠離基部的 方向延伸的輕射部，從而本創作多頻天線能收發多個頻帶 的電磁波，結構合理緊湊，佔用的空間小。 、甲 【實施方式】 6 M349049 為詳細說明本創作之技術内容、構造特徵、所達成目 的及功效，以下兹舉例並配合圖式詳予說明。 請參閱第一圖’本創作多頻天線i係由一軟性電路板2 上的銅而成，其包括-大致呈矩形板狀的基部u。 該基部11具有第-邊緣11A及垂直連接第—邊緣nA的M349049 VIII. New description: [New technical field] It is referred to as a multi-frequency antenna, especially a multi-frequency antenna for handheld electronic products. [Prior Art], #' With the rapid development of wireless transmission technology, various hand-held electronic products using wireless data transmission have emerged. These handheld electronic products need to be equipped with antennas to transmit and receive electromagnetic wave signals. Currently, handheld electronic products not only have a compact appearance, but also need to adapt to different wireless communication standards. Therefore, antennas on handheld electronic products require a small footprint and cover multiple wireless communication bands. When the antennas of the cymbal are mostly Planar Inverted-F Antenna (PIFA), Monopole Antenna and Loop Antenna (Antenna), the existing protocols for communication are GSM850, GSM900, - DCS1800. , PCS1900, WCDMA2000, etc. However, the above various antennas are difficult to meet the requirements of multi-frequency transceiving capability and small area, and the problem of reducing the occupied space and covering multiple radio communication bands cannot be simultaneously considered. [New content] The purpose of the present invention is to provide a multi-frequency antenna that has a small space and can transmit and receive electromagnetic waves of a plurality of frequency bands in view of the above-mentioned deficiencies of the prior art. M349049 In order to achieve the above object, the multi-frequency antenna provided by the present invention comprises a base, a first antenna portion, a second antenna portion, a feed portion and a ground portion. The secret part has a first edge and a second edge connecting the first edge, and the base is inward from the two edges of the .S. The first antenna portion extends from the first edge and has a - side edge. The second antenna portion has a connecting portion extending from a side edge of the first portion, the Korean portion and spaced apart from the base, and extending outward from the end of the connecting φ _. The radiating portion includes an end portion of the connecting portion a first lateral portion extending vertically outward, a longitudinal portion extending perpendicularly from the end of the first lateral portion toward the first antenna portion, a second lateral portion extending perpendicularly outward from the end of the longitudinal portion, and an end portion extending from the second lateral portion An extension portion formed by a portion of the base portion on the side of the groove, the feed portion being provided with a feed point. The ground portion is opened/formed by a portion of the base portion located on the other side of the slot. A grounding point is disposed on the grounding portion. As described above, the multi-frequency antenna of the present invention can transmit and receive signals of multiple frequency bands by using the first antenna portion and the second antenna and the line portion; and since the second antenna portion is The side edge of the first antenna portion extends and has a connecting portion extending perpendicularly from the first edge and spaced apart from the base portion, and a light-emitting portion extending from the end of the connecting portion away from the base portion, thereby creating a multi-frequency antenna Capable of transmitting and receiving electromagnetic waves in multiple frequency bands The structure is reasonable and compact, and the occupied space is small. A [Embodiment] 6 M349049 To explain in detail the technical content, structural features, achieved goals and effects of the creation, the following examples are given in detail with reference to the drawings. A picture of the present multi-frequency antenna i is made of copper on a flexible circuit board 2, which comprises a base u having a substantially rectangular plate shape. The base 11 has a first edge 11A and a vertical connection edge-edge nA.
第二邊緣11B。第-邊緣HA的中部向外垂直延伸出一大 致呈矩形板狀的第一天線部12。 第一天線部12具有—側緣12卜該側緣121彎折延伸 出-第二天線部13。該第二天線部13的寬度小於第一天線 部12的寬度，第二天線部13包括—連接部ΐ3ι及一韓射 部132。連接部131係從第一天線部12的側緣⑵垂直向 下延伸而成，且連接部131與基部η之_成有一隔槽 14。輕射和2係、由連接部131的末端向遠離基部η的方 向弯折延伸而成，該輻射部132包括由連接部131的末端 垂直向外延伸的第一橫向部132Α、由第—橫向部舰的 末端朝向第-天線部12垂直延伸的縱向部132Β、由縱向 部測末端垂直向外延伸的第二橫向部132C及由第二橫 向部測末端向上延伸的擴展部132D。連接部⑶、第 -橫向部胳、縱向部132B、第二橫向㈣ 測皆呈長方條狀。第—橫向部132A的外側…助與 M349049 基°卩11的第二邊緣11B大致齊平；擴展部132D的上側緣 132D1與第一天線部12的側緣ΐ2ι大致齊平。 基。卩11之第二邊緣11B的中部向基部11内部開設有 狹長條形的開槽15，從而基部u位於開槽15 一側的部 刀升y成一饋入部16 ’該饋入部16上設有一饋入點161，基 郤11位於開槽15另一侧的部分形成一接地部丨7，該接地 部17上設有一接地點171。 本創作多頻天線1用於通訊時，第一天線部12可收發 DCS1800、PCS1900及WCDMA2000通訊系統之電磁波訊 號，第二天線部13可收發GSM850及GSM900通訊系統之 電磁波訊號；饋人部16與接地部17形成—模擬電感，以 調節該多頻天線i的輸人阻抗使其與麟的特性阻抗相匹 配，此外，第二天線部13上的鍍金層可傳輸流經天線的電 流。 本創作多頻天線1藉由第一天線部12和第二天線部13 可收發多個頻帶的電磁波訊號，且第—天線部12係從第_ 邊緣11A㈣部垂直延伸出來，第二天線部B具有從第— 天線部12的側緣121垂直延伸的連接部131及由連接部 131延伸的輻射部132，从而本創作多频天线能收发多个频 可电磁波，結構合理緊凑’佔用的空間小。 M349049 另外，本創作多頻天線1在使用時可根據手持式電子 產品的結構合理彎曲，直接粘貼固定於手持式電子設備的 外成内，亦可先固定於一特定支座上再組裝於手持式電子 設備内’以進-步減少㈣空間而滿足手持式電子產品小 型化的需求。 【圖式簡單說明】 第一圖係本創作多頻天線的平面示意圖。 【主要元件符號說明】 多頻天線 1 基部 11 第一邊緣 11A 第二邊緣 11B 第一天線部 12 側緣 121 弟—天線部 13 連接部 131 輻射部 132 第一橫向部 132A 外側緣 132A1 縱向部 132B 第二橫向部 132C 擴展部 132D 上側緣 132D1 隔槽 14 開槽 15 鎮入部 16 饋入點 161 接地部 17 接地點 171 軟性電路板 2The second edge 11B. The central portion of the first edge HA extends vertically outwardly from the first antenna portion 12 having a substantially rectangular plate shape. The first antenna portion 12 has a side edge 12, and the side edge 121 is bent to extend out of the second antenna portion 13. The width of the second antenna portion 13 is smaller than the width of the first antenna portion 12, and the second antenna portion 13 includes a connecting portion ΐ3ι and a Korean portion 132. The connecting portion 131 extends vertically downward from the side edge (2) of the first antenna portion 12, and the connecting portion 131 forms a partition 14 with the base portion η. The light beam and the 2 series are formed by bending the end of the connecting portion 131 away from the base portion η, and the radiating portion 132 includes a first lateral portion 132Α extending perpendicularly outward from the end of the connecting portion 131, and the first lateral portion The end of the ship has a longitudinal portion 132A extending perpendicularly toward the first antenna portion 12, a second lateral portion 132C extending perpendicularly outward from the longitudinal end portion, and an extended portion 132D extending upward from the second lateral portion. The connecting portion (3), the first-lateral portion, the longitudinal portion 132B, and the second lateral direction (four) are all in the shape of a rectangular strip. The outer side of the first lateral portion 132A is substantially flush with the second edge 11B of the M349049 base 11; the upper edge 132D1 of the expanded portion 132D is substantially flush with the side edge ΐ2ι of the first antenna portion 12. base. The middle portion of the second edge 11B of the crucible 11 is provided with a slit-shaped slot 15 in the inner portion of the base portion 11, so that the portion of the base portion u on the side of the slot portion 15 is raised into a feeding portion 16'. The feeding portion 16 is provided with a feed. At the entry point 161, the base portion 11 is located on the other side of the slot 15 to form a ground portion 丨7, and the ground portion 17 is provided with a grounding point 171. When the multi-frequency antenna 1 is used for communication, the first antenna unit 12 can transmit and receive electromagnetic wave signals of the DCS1800, PCS1900 and WCDMA2000 communication systems, and the second antenna unit 13 can transmit and receive electromagnetic wave signals of the GSM850 and GSM900 communication systems; 16 is formed with the grounding portion 17 to simulate an inductance to adjust the input impedance of the multi-frequency antenna i to match the characteristic impedance of the lining. Further, the gold plating layer on the second antenna portion 13 can transmit the current flowing through the antenna. . The multi-frequency antenna 1 of the present invention can transmit and receive electromagnetic wave signals of a plurality of frequency bands by the first antenna unit 12 and the second antenna unit 13, and the first antenna portion 12 extends vertically from the _ edge 11A (four) portion, the next day The line portion B has a connecting portion 131 extending perpendicularly from the side edge 121 of the first antenna portion 12 and a radiating portion 132 extending from the connecting portion 131, so that the multi-frequency antenna of the present invention can transmit and receive a plurality of frequency electromagnetic waves, and the structure is reasonable and compact. The occupied space is small. M349049 In addition, the multi-frequency antenna 1 of the present invention can be bent according to the structure of the hand-held electronic product, and can be directly attached and fixed in the outer casing of the handheld electronic device, or can be fixed on a specific support and then assembled in a hand-held electronic device. In the electronic device, the space is reduced by the step-by-step (4) space to meet the demand for miniaturization of handheld electronic products. [Simple diagram of the diagram] The first diagram is a schematic diagram of the plane of the multi-frequency antenna. [Description of main component symbols] Multi-frequency antenna 1 Base 11 First edge 11A Second edge 11B First antenna portion 12 Side edge 121 Brother-antenna portion 13 Connection portion 131 Radiation portion 132 First lateral portion 132A Outer edge 132A1 Longitudinal portion 132B second lateral portion 132C expansion portion 132D upper side edge 132D1 compartment 14 slot 15 town portion 16 feed point 161 ground portion 17 ground point 171 flexible circuit board 2