201004024 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種通訊技術，尤其涉及一種行動通 訊裝置。 【先前技術】 近年來隨著行動通訊裝置，諸如個人數位助理（Personal Digital Assistant，PDA)、個人數位助理手機（Personal Digital Assistant Phone，PDA Phone)電話、智慧型手機（Smart Phone)、行動電話（Mobile Phone)以及筆記塑電腦（Notebook computer)等的日益普及，與行動通訊裝置息息相關的通訊技 術也迅速發展，使用者開始使用無線通訊傳輸資料，以達到 較佳的行動力。 一般地，使用無線通訊傳輸需要在行動通訊装置内部裳 設無線模組，此時若行動通訊裝置的外殼為金屬材質，則容 易產生電容效應而增加無線模組所收發訊號的雜訊成分，導 致無線模組的增益嚴重衰減’從而影響無線模組的收發功 能。因此行動通訊裝置的外殼最好為非金屬材質，尤其係行 動通訊裝置的外殼接近無線模組的區域必須為非金屬材質。 然而，在行動通訊裝置的風格強調以金屬材質營造科技 時尚感的今天，大量使用金屬材料或者類金屬烤漆已成為趨 勢，如此便會影響裝設在行動通訊裝置内部的無線楔級的收 發功能。當然，行動通訊裝置外殼可以大部分區域採用金屬 材料，而接近無線模組的區域則必須使用塑膠材料之類的非 金屬材料，如此便違反了外觀設計潮流。 7 201004024 【發明内容】 有鑒於此’有必要提供一種行動通訊裝置，其包 括一個金屬外殼’即可保證行動通訊裝置無線收發功 能的同時順應了行動通訊裝置的外觀設計潮流。 一種行動通訊装置，其包括一個本體以及一個包 覆邊本體的金屬殼體。該金屬殼體設有一個回應一個 預設工作頻帶並電性連接該本體的槽孔天線。該槽孔 天線大致呈“回”字形，其包括一個第一段矩形槽 孔、一個第二段矩形槽孔、一個第三段矩形槽孔以及 一個第四段矩形槽孔。該第一段矩形槽孔與該第三段 矩形槽孔平行，該第一段矩形槽孔的長度較該第三段 矩形槽孔的長度短。該第二段矩形槽孔與該第四段矩 形槽孔平行’該第二段矩形槽孔的長度較該第四段矩 形槽孔的長度長。該第二段矩形槽孔與該第一段矩形 槽孔及第三段矩形槽孔均垂直連通，該第四段矩形槽 孔與該第三段矩形槽孔垂直連通。 9 與先前技術相比，該行動通訊裝置利用開設於金 屬殼體上的槽孔天線收發預設工作頻帶的訊號，因該 槽孔天線直接開設於該金屬殼體上，故保證行動通來 裝置無線收發功能的同時順應了行動通訊裝置的外 觀設計潮流。 【實施方式】 下面將結合附圖’對本發明作進一步的 / q坪細說 明。 8 201004024 請一併參閱圖1及圖2，本發明提供的行動通訊 裝置10包括一個本體12、一個包覆該本體ι2的金 屬殼體14、一個饋入傳導件16以及一個接地傳導件 18。該行動通訊裝置1〇可以係移動電話、個人數位 助理或者筆記型電腦等，本實施方式中僅以移動電話 來說明。該饋入傳導件16與該接地傳導件18可以為 導線或者導電接腳等，本實施方式中該饋入傳導件 16與該接地傳導件is均為導線。 該本體12上設有一個訊號饋入端口 122以及一 個接地端口 124。 該金屬殼體14包括一個頂面142、兩個與該頂 面142垂直相連的侧面144、一個與該頂面142相對 且與兩個側面144均垂直的底面143、一個背面145 以及一個回應一個預設工作頻帶並電性連接該本體 12的槽孔天線146。該背面145與該頂面142、兩個 側面144以及該底面143均垂直相連。請結合圖3及 圖4 ’該槽孔天線ι46大致呈“回”字形，其包括一 個第一段矩形槽孔146a、一個第二段矩形槽孔 146b、一個第三段矩形槽孔i46c、一個第四段矩形 槽孔146d以及一個短邊148。該第一段矩形槽孔146a 的長為31mm，寬為imm。該第二段矩形槽孔146b 的長為10mm’寬為2mm。該第三段矩形槽孔146c 的長為51mm，寬為imm。該第四段矩形槽孔146d 的長為5mm ’寬為4mm。該第一段矩形槽孔146a與 201004024 該第三段矩形槽孔14 6 c平行。該第二段矩形槽孔 146b與該第四段矩形槽孔146d平行。該第二段矩形 槽孔14 6 b與該苐一段矩形槽孔14 6 a及該第三段矩形 槽孔146c均垂直連通。該第四段矩形槽孔i46d與該 第二段矩形槽孔146c垂直連通。由於該第一段矩形 槽孔146a的長度較第三段矩形槽孔i46c的長度短， 且該第二段矩形槽孔146b的長度較該第四段矩形槽 孔146d的長度長’因此該第一段矩形槽孔146a與該 第四段矩形槽孔146d不連通。該短邊148位於該第 四段矩形槽孔146d的與該第三段矩形槽孔146C不連 通的一端。該短邊148藉由該饋入傳導件16與該訊 號饋入端口 122相連，且藉由該接地傳導件18與該 接地端口 124相連，因此可以實現訊號的收發。本實 施方式中的預設工作頻帶係i.575ghz，可以收發衛 星疋位系統（Global Positioning System，GPS)的無線 電訊號。 ， 工作時，該本體12將電訊號經由該饋入傳導件 16傳送至該槽孔天線146，以產生GPS頻帶的無線 電訊號’從而完成Gps頻帶的無線電訊號的傳送； 同樣地，5亥槽孔天線146可諧振於外界的GPS頻帶 無線電訊號，以產生感應電流經該饋入傳導件16傳 送至該本體12，從而完成GPS頻帶的無線電訊號的 接收。 請一併參閱圖1及圖5，為該行動通訊裝置1〇 10 201004024 的槽孔天線146的回波損耗測試圖，從圖5中可以看 出該行動通訊裝置10的槽孔天線146在1575GHZ 的工作頻率時的回波損耗為-25dB，表明該槽孔天線 14 6在此工作頻率範圍具有良好的阻抗匹配特性，且 可以共振以收發訊號。 可以理解’該槽孔天線146並不局限於本實施方 式中開設在該頂面142上’還可以開設在兩侧面ι44 上、該底面143上以及該背面145上。 本發明的行動通訊裝置1 〇利用開設於該金屬殼 體14上的槽孔天線146收發預設工作頻帶的訊號， 因該槽孔天線146直接開設於該金屬殼體14上，故 保證該行動通訊裝置10無線收發功能的同時順應了 行動通訊裝置10的外觀設計潮流。 表上所述’本發明符合發明專利要件，爰依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施 方式’本發明之範圍並不以上述實施方式為限，舉凡 热悉本案技藝之人士援依本發明之精神所作之等效 修飾或變化，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1為本發明行動通訊裝置的立體示意圖。 圖2為圖1中行動通訊裝置的局部剖視圖。 圖3為圖1中行動通訊裝置的槽孔天線的示意圖。 圖4為圖1中行動通訊裝置的槽孔天線的尺寸示意圖。 51 5為圖1中行動通訊裝置的槽孔天線的回波損耗測試 11 201004024 圖。 【主要元件符號說明】 行動通訊裝置 10 金屬殼體 14 頂面 142 底面 143 侧面 144 背面 145 槽孔天線 146 短邊 148 本體 12 訊號饋入埠 122 第一段矩形槽孔 146a 接地埠 124 第二段矩形槽孔 146b 饋入傳導件 16 第三段矩形槽孔 146c 接地傳導件 18 第四段矩形槽孔 146d 12201004024 IX. Description of the Invention: [Technical Field] The present invention relates to a communication technology, and more particularly to a mobile communication device. [Prior Art] In recent years, with mobile communication devices, such as Personal Digital Assistant (PDA), Personal Digital Assistant Phone (PDA Phone), Smart Phone, and mobile phone ( With the increasing popularity of mobile phones and notebook computers, communication technologies that are closely related to mobile communication devices are rapidly developing, and users are beginning to use wireless communication to transmit data to achieve better mobility. Generally, the use of wireless communication transmission requires the installation of a wireless module inside the mobile communication device. If the outer casing of the mobile communication device is made of a metal material, the capacitance effect is easily generated and the noise component of the signal transmitted by the wireless module is increased, resulting in a noise component. The gain of the wireless module is seriously attenuated, which affects the transceiver function of the wireless module. Therefore, the outer casing of the mobile communication device is preferably made of a non-metal material, and in particular, the area of the casing adjacent to the wireless module of the communication device must be non-metallic. However, in the style of mobile communication devices, which emphasizes the use of metal materials to create a sense of technology and fashion, the extensive use of metallic materials or metal-like paints has become a trend, which will affect the wireless wedge-level transceiver function installed inside the mobile communication device. Of course, the mobile communication device housing can be made of metal material in most areas, and the area close to the wireless module must use non-metallic materials such as plastic materials, thus violating the design trend. 7 201004024 [Description of the Invention] In view of the need to provide a mobile communication device, which includes a metal casing, the wireless communication function of the mobile communication device can be ensured while conforming to the design trend of the mobile communication device. A mobile communication device includes a body and a metal housing covering the side body. The metal housing is provided with a slot antenna responsive to a predetermined operating frequency band and electrically connected to the body. The slot antenna has a substantially "back" shape and includes a first segment of rectangular slots, a second segment of rectangular slots, a third segment of rectangular slots, and a fourth segment of rectangular slots. The first segment of the rectangular slot is parallel to the third segment of the rectangular slot, and the length of the first segment of the slot is shorter than the length of the third segment of the slot. The second segment of the rectangular slot is parallel to the fourth segment of the rectangular slot. The length of the second segment of the rectangular slot is longer than the length of the fourth segment of the slot. The second segment of the rectangular slot is in vertical communication with the first segment of the rectangular slot and the third segment of the rectangular slot, and the fourth segment of the rectangular slot is in vertical communication with the third segment of the slot. 9 Compared with the prior art, the mobile communication device transmits and receives the signal of the preset working frequency band by using the slot antenna opened on the metal casing, and the slot antenna is directly opened on the metal casing, so that the mobile communication device is ensured. The wireless transceiver function complies with the design trend of the mobile communication device. [Embodiment] Hereinafter, the present invention will be further described with reference to the accompanying drawings. 8 201004024 Referring to FIG. 1 and FIG. 2 together, the mobile communication device 10 of the present invention includes a body 12, a metal housing 14 covering the body ι2, a feedthrough conductive member 16, and a grounding conductor 18. The mobile communication device 1 can be a mobile phone, a personal digital assistant, or a notebook computer. In the present embodiment, only the mobile phone will be described. The feed conductive member 16 and the ground conductive member 18 may be wires or conductive pins. In the present embodiment, the feed conductive member 16 and the ground conductive member is are wires. The body 12 is provided with a signal feed port 122 and a ground port 124. The metal housing 14 includes a top surface 142, two side surfaces 144 perpendicularly connected to the top surface 142, a bottom surface 143 opposite the top surface 142 and perpendicular to the two side surfaces 144, a back surface 145, and a response The working frequency band is preset and electrically connected to the slot antenna 146 of the body 12. The back surface 145 is vertically connected to the top surface 142, the two side surfaces 144, and the bottom surface 143. Referring to FIG. 3 and FIG. 4, the slot antenna ι 46 has a substantially "back" shape, and includes a first segment rectangular slot 146a, a second segment rectangular slot 146b, a third segment rectangular slot i46c, and a third segment rectangular slot 146b. The fourth segment has a rectangular slot 146d and a short side 148. The first segment of the rectangular slot 146a has a length of 31 mm and a width of imm. The second rectangular slot 146b has a length of 10 mm' and a width of 2 mm. The third segment of the rectangular slot 146c has a length of 51 mm and a width of imm. The fourth segment of the rectangular slot 146d has a length of 5 mm' and a width of 4 mm. The first segment of the rectangular slot 146a is parallel to the 201004024 third segment of the rectangular slot 14 6 c. The second segment of the rectangular slot 146b is parallel to the fourth segment of the rectangular slot 146d. The second rectangular slot 14 6 b is in vertical communication with the first rectangular slot 14 6 a and the third rectangular slot 146c. The fourth segment of the rectangular slot i46d is in vertical communication with the second segment of the rectangular slot 146c. The length of the first segment of the rectangular slot 146a is shorter than the length of the third segment of the rectangular slot i46c, and the length of the second segment of the slot 146b is longer than the length of the fourth segment of the slot 146d. A length of rectangular slot 146a is not in communication with the fourth segment of rectangular slot 146d. The short side 148 is located at an end of the fourth segment of the rectangular slot 146d that is not in communication with the third segment of the rectangular slot 146C. The short side 148 is connected to the signal feeding port 122 by the feed conducting member 16, and the grounding conductor 18 is connected to the grounding port 124, so that the signal can be transmitted and received. The preset working frequency band in this embodiment is i.575ghz, which can send and receive wireless radio signals of the Global Positioning System (GPS). During operation, the body 12 transmits an electrical signal to the slot antenna 146 via the feed-in conductor 16 to generate a radio signal of the GPS band' to complete the transmission of the radio signal in the GPS band; likewise, a 5-slot slot The antenna 146 can resonate with the external GPS band radio signal to generate an induced current to be transmitted to the body 12 via the feedthrough conductor 16 to complete the reception of the radio frequency band of the GPS band. Please refer to FIG. 1 and FIG. 5 together for the return loss test diagram of the slot antenna 146 of the mobile communication device 1〇10 201004024. It can be seen from FIG. 5 that the slot antenna 146 of the mobile communication device 10 is at 1575 GHz. The return loss at the operating frequency is -25 dB, indicating that the slot antenna 14 6 has good impedance matching characteristics in this operating frequency range and can resonate to transmit and receive signals. It is to be understood that the slot antenna 146 is not limited to being disposed on the top surface 142 in the present embodiment, and may be formed on the two sides ι 44, the bottom surface 143, and the back surface 145. The mobile communication device 1 of the present invention transmits and receives a signal of a predetermined operating frequency band by using a slot antenna 146 opened on the metal casing 14. Since the slot antenna 146 is directly opened on the metal casing 14, the action is ensured. The wireless transmission and reception function of the communication device 10 conforms to the design trend of the mobile communication device 10. The invention described above is in accordance with the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. All should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a mobile communication device of the present invention. 2 is a partial cross-sectional view of the mobile communication device of FIG. 1. 3 is a schematic diagram of a slot antenna of the mobile communication device of FIG. 1. 4 is a schematic view showing the size of a slot antenna of the mobile communication device of FIG. 1. 51 5 is the return loss test of the slot antenna of the mobile communication device in Fig. 1 201004024. [Main component symbol description] Mobile communication device 10 Metal case 14 Top surface 142 Bottom surface 143 Side surface 144 Back surface 145 Slot antenna 146 Short side 148 Main body 12 Signal feed 埠 122 First segment rectangular slot 146a Ground 埠 124 Second segment Rectangular slot 146b feeds the conductive member 16 third segment rectangular slot 146c grounding conductor 18 fourth segment rectangular slot 146d 12