M357035 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種天線，尤其涉及一種手機内置天線。 【先前技術】 按，隨著當今移動通訊技術的蓬勃發展，手機的設計日漸 要求輕薄短小及美觀，因此，手機的天線結構由以往外露於手 機的螺旋式天線而發展出一種隱藏於手機内部的隱藏式天 線。為進一步符合手機整體輕薄短小的設計需求，目前又發展 出具有平面結構的隱藏式天線，以儘量減少天線對手機内部空 間的佔用。 習知技術提供一種倒F型内置天線（Planar Inverter-F Antenna，PIFA)，該種天線具有體積小、結構簡單、設計容易 等特點，因此被大量應用於各種不同的通訊系統和產品中，特 別是應用於輕便及要求接收、發射能力強的通訊產品中，如手 機0 惟，上述傳統之倒F型天線因自身結構之限制，其通訊頻 率不易擴展至第三頻率。而當今手機之發展多要求具有三頻甚 而夕頻通§fl能力，故，傳統倒F型天線於三頻通訊頻率不足之 限制不能滿足當前手機之發展需求。 又，抓用上述倒F型天線之手機於組裝過程中，為避免手 機揚聲_手機天線使驗能W業《常將手機揚聲器 3 M357035 装n又於遠離倒F型天線的位置，而此設計勢必導致手機體積增 大無法適應手機短小輕薄的發展趨勢。 【新型内容] 本創作之目的係針對上述習知技術之缺陷提供一種手機 内置天線，旎夠擴展天線通訊頻率至第三頻率，增加天線增益 頻寬同時減小手機揚聲器和該天線於手機内之組裝空間， 而又可有放控制手機揚聲器對天線性能之影響。M357035 V. New description: [New technical field] The present invention relates to an antenna, and more particularly to a built-in antenna for a mobile phone. [Prior Art] According to the rapid development of mobile communication technology, the design of mobile phones is increasingly demanding light, short, and beautiful. Therefore, the antenna structure of mobile phones has been developed from the spiral antennas that have been exposed to mobile phones in the past. Hidden antenna. In order to further meet the overall light, thin and short design requirements of the mobile phone, a hidden antenna with a planar structure has been developed to minimize the occupation of the internal space of the mobile phone by the antenna. The conventional technology provides an inverted F-type internal antenna (Planar Inverter-F Antenna, PIFA), which has the characteristics of small size, simple structure, and easy design, and is therefore widely used in various communication systems and products, especially It is used in communication products that are light and require strong reception and transmission capabilities, such as mobile phone 0. However, the traditional inverted F-type antenna is not easily extended to the third frequency due to its own structure. However, the development of today's mobile phones requires three-frequency and even high-frequency §fl capabilities. Therefore, the limitations of traditional inverted-F antennas in the tri-band communication frequency cannot meet the development needs of current mobile phones. Moreover, in the assembly process of the mobile phone using the inverted F-type antenna, in order to avoid the sound of the mobile phone _ mobile phone antenna enables the inspection of the W industry "often the mobile phone speaker 3 M357035 is installed at a position away from the inverted F-type antenna, and this The design will inevitably lead to an increase in the size of the mobile phone, which cannot adapt to the short and light development trend of the mobile phone. [New content] The purpose of this creation is to provide a mobile phone built-in antenna for the defects of the above-mentioned conventional technology, which can expand the antenna communication frequency to the third frequency, increase the antenna gain bandwidth, and reduce the mobile phone speaker and the antenna in the mobile phone. The assembly space, but also has the effect of controlling the performance of the mobile phone speaker on the antenna.
為達成上述目白勺，本創作提供一種手機内置天線，包括低 頻天線邛、呵頻天線部及第一連接部。低頻天線部為一曲折型 低頻天線，南頻天線部為—平面板狀之雙頻回路天線；第一連 接部设置有第—接地端及_饋人端。其中，高頻天線部具有位 於左側的第—尚頻天線部和位於右側的第二高頻天線部，第 /第二局頻天線部由_第二連接部連為—體，第—高頻天線 部藉由第—連接部和低頻天線部連為-體，第二高頻天線部設 有第二接地端’第―、第二高頻天線部間形成電流回路，構成 雙頻回路結構’通過回路間電流流動而增加天線增益及高頻頻 寬，第二高頻天線部與低頻天線部之間形成―容置空間，以佈 置—手機揚聲器於其内。 寬之目的 上所述本創作手機内置天線藉由低頻天線部與高頻天 ，、、之、、”使天線具有二頻之通訊頻率，且通過第二高頻天 ，部與第-高頻天線部之連接而達成增加天線增益及高頻頻 M357035 此外’揚聲器佈設於所述天線形成容置空間内，能夠減小 兩者於手機内之組裝空間，從而有利於手機之體積的小型化。 同時藉由低頻天線部、第一連接部、第—高頻天線部及第二高 頻天線部與手機揚聲器之相對位置關係，使得本創作手機内置 天線於通訊時，可有效控制所述揚聲器對天線通訊性能之影 響。 【實施方式】 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，以下茲例舉實施例並配合圖式詳予說明。 請參閱第一圖，本創作手機内置天線丨係採用金屬薄板構 造，包括低頻天線部10、高頻天線部2〇及將低頻天線部1〇、 高頻天線部20連接為一體的第一連接部3〇。 低頻天線部10採用曲折形設計，屬倒F型天線（Planar Inveftei··!? Antenna，PIFA)構造，用以收發低頻通訊電磁波訊 唬。於具體實施中，低頻天線部1〇大致呈倒L型板狀，包括 水平佈置之長邊11及自該長邊n右端豎直向下彎折之短邊 12。其中，所述低頻天線部1〇自所述長邊丨丨及l形構造之拐 角處向内凸伸設置有兩個方形凸片1〇1，每一方形凸片ι〇ι於 大致中部開設有第一固定孔1〇2，以便將低頻天線部1〇固定 於手機内部，如套設該第一固定孔1〇2於手機内部對應之塑膠 柱（圖未示）上。低頻天線部1〇之長度與移動電話低頻通訊之 電磁波訊號四分之-波長相匹配，適用於GSM9⑻系統之低頻 5 M357035 通訊。In order to achieve the above objectives, the present invention provides a built-in antenna for a mobile phone, including a low frequency antenna, a frequency antenna, and a first connection. The low frequency antenna part is a zigzag type low frequency antenna, the south frequency antenna part is a flat plate type double frequency loop antenna, and the first connection part is provided with a first grounding end and a _feeding end. Wherein, the high-frequency antenna portion has a first-frequency antenna portion located on the left side and a second high-frequency antenna portion located on the right side, and the second/second-communication antenna portion is connected to the body by the second connection portion, the first high frequency The antenna portion is connected to the body by the first connection portion and the low frequency antenna portion, and the second high frequency antenna portion is provided with a current loop between the second ground end 'the first and second high frequency antenna portions to form a dual frequency loop structure' The antenna gain and the high frequency bandwidth are increased by the current flow between the loops, and an accommodating space is formed between the second high frequency antenna portion and the low frequency antenna portion to arrange the mobile phone speaker therein. The purpose of the wide purpose is to use the low-frequency antenna unit and the high-frequency antenna, and the antenna to have a two-frequency communication frequency, and to pass the second high-frequency day, the portion and the first-high frequency. The antenna unit is connected to increase the antenna gain and the high frequency. M357035 In addition, the speaker is disposed in the antenna forming accommodation space, which can reduce the assembly space of the two in the mobile phone, thereby facilitating the miniaturization of the size of the mobile phone. The relative positional relationship between the low-frequency antenna portion, the first connecting portion, the first-high-frequency antenna portion and the second high-frequency antenna portion and the mobile phone speaker enables the built-in antenna of the mobile phone to effectively control the speaker-to-antenna when communicating [Embodiment] In order to explain in detail the technical content, structural features, achieved goals and effects of the present invention, the following embodiments are described in detail with reference to the drawings. The built-in antenna is made of a thin metal plate structure, and includes a low-frequency antenna unit 10, a high-frequency antenna unit 2〇, and a low-frequency antenna unit 1〇 and a high-frequency antenna unit 20. The integrated first connecting portion 3〇. The low-frequency antenna portion 10 adopts a meandering design and is an inverted-F antenna (Planar Inveftei··! Antenna, PIFA) structure for transmitting and receiving low-frequency communication electromagnetic waves. In specific implementation, The low frequency antenna portion 1 is substantially in the shape of an inverted L-shaped plate, and includes a horizontally arranged long side 11 and a short side 12 bent vertically downward from the right side n right end. The low frequency antenna portion 1 is from the Two square tabs 1〇1 are protruded inwardly at the corners of the long-side 丨丨 and the l-shaped structure, and each of the square lobes ι〇ι is provided with a first fixing hole 1〇2 in the substantially central portion so as to be low-frequency The antenna part 1〇 is fixed inside the mobile phone, for example, the first fixing hole 1〇2 is set on the corresponding plastic column (not shown) inside the mobile phone. The length of the low-frequency antenna part 1〇 and the electromagnetic wave signal of the low-frequency communication of the mobile phone are four. The wavelength-matching is suitable for the low frequency 5 M357035 communication of the GSM9(8) system.
rfj頻天線部20為 Jc UL 為一千面板狀之雙頻回路天線構造，位於 低頻天線㈣之長邊u下方。高頻天線部20具有位於左侧 ❹1頻天線部23和位於右側的第二高頻天線部24。第一 局頻天線部23和第-古此s 1 a合 弟1頻天線部24之間形成狹長缺口 22, 並於下端由—第二連接部25連為一體。The rfj frequency antenna unit 20 is a dual-frequency loop antenna structure in which Jc UL is a thousand-panel shape, and is located below the long side u of the low-frequency antenna (4). The high-frequency antenna unit 20 has a first-frequency antenna portion 23 on the left side and a second high-frequency antenna portion 24 on the right side. The first local frequency antenna unit 23 and the first and second s1 a antenna antenna portions 24 form an elongated notch 22, and are connected at the lower end by the second connecting portion 25.
第一高頻天線部23大致呈矩形板狀，其周緣設置有複數 安裝缺口231，以固定第一高頻天線部23於手機内部。 第二高頻天線部24之上下兩邊相互平行，其下邊位於第 -高頻天線部23下邊沿下方，上邊於狹長缺口 22處向上延伸 後並垂直向下彎折出大致L形之第二接地端24卜第二高頻天 線部24右側與低頻天線部1〇之短彡12及長邊n右側之間圍 成-容置空間40供容置手機之揚聲器5〇,與之對應，第二高 頻天線部24右侧上邊沿配合揚聲器5〇之構造而呈内凹之弧 形，右側下邊沿呈外凸之鈍角狀而與弧形上邊沿相連。第二高 頻天線部24設置有第二固定孔242，以固定第二高頻天線部 24於手機内部。 第一連接部30大致呈工形，其上端右側與低頻天線部1〇 之長邊11左端相連接，上端左側垂直向下延伸出大致L形的 第一接地端31。第一連接部30下端右側與第—高頻天線部23 之上端左側連為一體’第一連接部30下端左側垂直向下延伸 出一大致L形之饋入端32。第一連接部30與低頻天線部1〇The first high-frequency antenna portion 23 has a substantially rectangular plate shape, and a plurality of mounting notches 231 are provided on the periphery thereof to fix the first high-frequency antenna portion 23 inside the mobile phone. The upper and lower sides of the second high-frequency antenna portion 24 are parallel to each other, the lower side thereof is located below the lower edge of the first-high frequency antenna portion 23, the upper side is extended upward at the elongated notch 22, and is bent vertically downward to form a substantially L-shaped second ground. The terminal 24 is disposed between the right side of the second high-frequency antenna unit 24 and the short-circuit 12 of the low-frequency antenna unit 1 and the right side of the long-side n--the accommodating space 40 for accommodating the speaker 5 of the mobile phone, corresponding thereto, the second The upper right edge of the high-frequency antenna portion 24 is concavely curved in conformity with the configuration of the speaker 5A, and the right lower edge is convexly obtusely connected to the upper edge of the curved shape. The second high frequency antenna portion 24 is provided with a second fixing hole 242 for fixing the second high frequency antenna portion 24 inside the mobile phone. The first connecting portion 30 has a substantially work shape, and the upper end of the upper end is connected to the left end of the long side 11 of the low frequency antenna portion 1A, and the left side of the upper end extends vertically downwardly to the substantially L-shaped first ground end 31. The right side of the lower end of the first connecting portion 30 is integrally connected with the left side of the upper end of the first-high frequency antenna portion 23. The lower end of the lower end of the first connecting portion 30 extends vertically downwardly to a substantially L-shaped feeding end 32. First connecting portion 30 and low frequency antenna portion 1〇
頻天線部24與低頻天線部1G所圍之容置空間㈣，能夠減 小兩者於手㈣之組裝”，從㈣利於手機體積的小型化。 同時藉由低頻天線部10、第一連接部3〇、第一高頻天線❹ M357035 之長邊11以及第一高頻天線部23之間形成一大致u形槽21， 調整該U形槽21之開口寬度可調整天線性能，如天線頻率。 上述饋入端32、第一接地端31及第二接地端241分別與 手機内部電路板之接地端及信號端連接（圖未示）。所述饋入端 32與第二接地端241之間形成電流回路，使得第一高頻天線 部23與第二高頻天線部24之間形成電流回路，構成一雙頻回 路結構，使天線獲得較大增益，且增加天線之高頻頻寬，進而 使得本創作之手機内置天線1除可用於GSM900系統之低頻通 訊外亦可用於DCS1800系統及PCS1900系統之高頻通訊。調 整饋入端32、第一接地端31及第二接地端241相對於第一連 接部3 0和第一咼頻天線部24所在平面之相對高度，可調整天 線性能，如天線頻寬，從而獲得較佳通訊性能。 综上所述’本創作手機内置天線丨藉由具有倒F型天線構 造之低頻天線部10與具有雙頻回路天線結構之高頻天線部2〇 的結合’使得天線具有三頻之通訊頻率，藉由第二連接部Μ 而連通第-高頻天線部23及第二高頻天線部24，於其間形成 電流回路，使天賴得較大增益，且增加天線之高頻頻寬，從 而使得本創作手機内置天線丨具有較佳通訊性能。 此外，本創作手機内置天線i之揚聲器5〇佈設於第二高 7 M357035 及第二局頻天線部24與手機揚聲 器50之相對位置闕係 ，使得 本創作手機内置天線1 於通訊時， 可有效控制揚聲器50對天 線通訊性能之影響。 【圖式簡單說明】 第一圖係本創作手機内置天線之立體圖。 第二圖係本創作手機内置天線與手機揚聲器組合之狀態圖。 【主要元件符號說明】 手機内置天線 1 低頻天線部 10 長邊 11 短邊 12 凸片 101 第一固定孔 1〇2 高頻天線部 20 U形槽 21 狹長缺口 22 第一高頻天線部 23 安裝缺口 231 第二高頻天線部 24 第二接地端 241 第二固定孔 242 第二連接部 25 第一連接部 30 第一接地端 31 饋入端 32 容置空間 40 揚聲器 50 δThe accommodating space (four) surrounded by the frequency antenna portion 24 and the low-frequency antenna portion 1G can reduce the assembly of the two hands (four), and (4) facilitates miniaturization of the size of the mobile phone. At the same time, the low-frequency antenna portion 10 and the first connecting portion 3. A substantially u-shaped groove 21 is formed between the long side 11 of the first high frequency antenna ❹ M357035 and the first high frequency antenna portion 23. Adjusting the opening width of the U-shaped groove 21 can adjust the antenna performance, such as the antenna frequency. The feeding end 32, the first grounding end 31 and the second grounding end 241 are respectively connected to the grounding end and the signal end of the internal circuit board of the mobile phone (not shown). Between the feeding end 32 and the second grounding end 241 Forming a current loop such that a current loop is formed between the first high frequency antenna portion 23 and the second high frequency antenna portion 24 to form a dual frequency loop structure, so that the antenna obtains a large gain and increases the high frequency bandwidth of the antenna, thereby The built-in antenna 1 of the mobile phone can be used for the high frequency communication of the DCS1800 system and the PCS1900 system in addition to the low frequency communication of the GSM900 system. The feed end 32, the first ground end 31 and the second ground end 241 are adjusted relative to the first Connection part 30 and first The relative height of the plane where the antenna portion 24 is located can adjust the antenna performance, such as the antenna bandwidth, to obtain better communication performance. In summary, the built-in antenna of the present mobile phone has a low frequency antenna with an inverted F antenna structure. The combination of the portion 10 and the high-frequency antenna portion 2A having the dual-frequency loop antenna structure is such that the antenna has a communication frequency of three frequencies, and the first-high frequency antenna portion 23 and the second high-frequency antenna are connected by the second connection portion Μ The portion 24 forms a current loop therebetween, so that the sky is relatively large in gain, and the high frequency bandwidth of the antenna is increased, so that the built-in antenna of the notebook mobile phone has better communication performance. In addition, the speaker of the built-in antenna i of the creation mobile phone 5 The 高 is arranged at the second high 7 M357035 and the second local frequency antenna unit 24 and the relative position of the mobile phone speaker 50, so that the built-in antenna 1 of the creative mobile phone can effectively control the influence of the speaker 50 on the communication performance of the antenna. Brief description of the diagram] The first picture is a perspective view of the built-in antenna of the mobile phone. The second picture is the state diagram of the combination of the built-in antenna of the mobile phone and the speaker of the mobile phone. [Main component symbol description] Mobile phone built-in antenna 1 Low-frequency antenna section 10 Long side 11 Short side 12 Tab 101 First fixing hole 1〇2 High-frequency antenna part 20 U-shaped groove 21 Long narrow notch 22 First high-frequency antenna part 23 Mounting notch 231 second high frequency antenna portion 24 second ground end 241 second fixing hole 242 second connecting portion 25 first connecting portion 30 first ground end 31 feeding end 32 accommodating space 40 speaker 50 δ