201112491 六、發明說明： 【發明所屬之技術領域】 • 本發明涉及一種無線通訊裝置，尤其涉及一種應用寬頻天線之無 、線通訊裝置。 【先前技術】 隨著無線通訊技術、資訊處理技術之迅速發展以及人們生活水準 之日益提高，行動電話、個人數位助理(Pers〇nalDigital__，pDA) 鲁等可攜式無線通訊農置競相消現’進入到千家萬戶，使消費者可隨時 隨地享受到高科錄來之種種制，使得這射攜式紐通訊震置已 成為現代人日常生活不可缺少之一部分。 足些無線通訊裝置中，用來發射'接收無線電波以傳遞、交換無 線電貧料訊號之天線裝置是其最重要之組件之—。由於習知之無線通 訊裳置經常需要能夠應用於各種使用不同通訊頻率之通訊系統'，’故其 天線大多設計祕有涵蓋多個常㈣訊鮮之寬頻天線。惟為使天 線獲得較寬廣之:L作頻段，往往需要設計較為複雜之天線結構並擴大 _天線之尺寸’這與無線通訊裝置小型化設計之整體趨勢相障。因此， 如^使天線既具有較寬廣之卫作倾，同時又能儘量減小天線之尺寸 及簡化天線之結構，成為製造技術上面臨之重要問題。 【發明内容】 ，有鑒於此’有必要提供一種體積小，且能涵蓋多個系統頻寬之無 線通訊裝置。 …' 一種無線通域置，其包括—基板、—切換關及設於基板上之 一寬頻天線，所述寬頻天線包括—輕射主體、—饋人部及多個接地端， 所述饋入部及接地端連接於歸主體，所述切換_域於不同之接 201112491 地端之間，以將所述舖主體分成電氣長度不同之姉區域。 相較㈣知猶，崎之鱗軌錢藉由—城開_換於接 地权不地端之間’以此來得到電氣長度不同之細區域，進而 獲得較寬之天«寬。練軌妓__較 蓋了多個常舰_寬。 【實施方式】 請參閱圖i至圖3，本發明之一個較佳實施例為一無線通訊裝置 修100 ’其可以為行動電話或PDA等具有無線通訊功能之可攜式電子裝 置。該無線通訊裝置100包括一基板1〇、一寬頻天線2〇、一切換開關 30 (請參_ 4)及-殼體50。所述基板1〇裝設於殼體5〇内，所述 寬頻天線20及切換開關30均裝設於該基板1〇上。 所述基板ίο大致為-矩形之印刷電路板(Printed 恥㈣， PCB)，其包括-側面12、一端面13、一頂祕及與該頂面_對之一 底面（圖未標）。所述頂面14上可設置依照習知技術製造之一饋入點㈤ 未不)及-接地點18(請參閱圖句。所述饋入點及接地點ls與寬頻天線 #電性相連以形成電流迴路，從而為寬頻天線2〇提供工作必需之訊號饋 入及接地。所述基板10之靠近側面12之一端設有一淨空區域16，所述 淨空區域16絲板1GJ1無任何導體存在之區域，㈣防止外部環境中 電子兀件如電池' 振動器、咖八、電荷编合器件（Charge201112491 VI. Description of the Invention: [Technical Field] The present invention relates to a wireless communication device, and more particularly to a wireless communication device using a broadband antenna. [Prior Art] With the rapid development of wireless communication technology and information processing technology and the increasing living standards of people, mobile phones, personal digital assistants (Pers〇nalDigital__, pDA) and other portable wireless communication farms are competing to disappear. Entering thousands of households, so that consumers can enjoy the various systems recorded by high-tech at any time and place, making this shooting-type new communication shock has become an indispensable part of modern people's daily life. In some wireless communication devices, an antenna device for transmitting 'receiving radio waves to transmit and exchange radio lean signals is its most important component. Since the conventional wireless communication device often needs to be able to be applied to various communication systems using different communication frequencies, the antennas are mostly designed to cover a plurality of frequent (four) communication broadband antennas. However, in order to make the antenna wider: L is often used to design a more complex antenna structure and to expand the size of the antenna. This is incompatible with the overall trend of miniaturization of wireless communication devices. Therefore, if the antenna has a wide range of tilting, while minimizing the size of the antenna and simplifying the structure of the antenna, it becomes an important problem in manufacturing technology. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a wireless communication device that is small in size and can cover a plurality of system bandwidths. a wireless local area, comprising: a substrate, a switching off and a broadband antenna disposed on the substrate, the broadband antenna comprising: a light projecting body, a feeding portion and a plurality of grounding ends, the feeding portion And the grounding end is connected to the main body, and the switching_domain is between different ground ends of 201112491 to divide the paving body into different crucible regions with different electrical lengths. Compared with (4) knowing the facts, the squama of the squadrons is used to obtain a fine area with different electrical lengths by using the city-opening _ in exchange for the grounding right between the ground ends, thereby obtaining a wider day «width. The trajectory __ is covered with a number of regular ships _ wide. [Embodiment] Referring to Figures 1 to 3, a preferred embodiment of the present invention is a wireless communication device repairing device </ RTI> which can be a portable electronic device having a wireless communication function such as a mobile phone or a PDA. The wireless communication device 100 includes a substrate 1A, a broadband antenna 2A, a switch 30 (see _4), and a housing 50. The substrate 1 is mounted in a casing 5, and the broadband antenna 20 and the changeover switch 30 are mounted on the substrate 1A. The substrate ίο is a substantially rectangular printed circuit board (Printed Shame (4), PCB), which includes a side surface 12, an end surface 13, a top surface and a top surface (the same as the bottom surface). The top surface 14 can be provided with one of the feeding points (5) and the grounding point 18 according to the prior art. (Please refer to the figure. The feeding point and the grounding point ls are electrically connected to the broadband antenna # A current loop is formed to provide signal input and grounding necessary for operation of the broadband antenna 2A. One end of the substrate 10 near the side surface 12 is provided with a clearance area 16 which is free of any conductor presence area of the wire plate 1GJ1. (4) Preventing electronic components such as batteries in the external environment 'vibrators, coffee eight, charge-matching devices (Charge
Device ’ CCD)⑽冑頻天線嫌奸擾，祕私作鮮偏移或輕 射效率變低。 所述寬頻天線2〇可由金屬材料—體成型喊，所述寬頻天線2〇 包括一輻射主體22、一饋入部24及一接地部26。 所述輻射主體22為條狀結構，其包括一第一連接段221、二第二 201112491 連接#又222、一第二連接段223及一第四連接段224。所述第一連接段 較寬，所述第二連接段222、第三連接段223及第四連接段 見度致且均小於第一連接段Π之寬度。所述第一連接段為一 .平直之長條狀結構，所述二第二連接段222分別垂直地連接於第一連 接段221之兩端並平行地延伸。所述第三連接段您呈“乙，，形，其包括 第矩形段225及-第二矩形段级。所述第一矩形段225 一端垂 直連接於其中一第二連接段222，並豐直延伸以此與第二連接段222 鲁所在之平面垂直哳述第二矩形段226 一端垂直連接於第一矩形段奶 之末端，並沿平行於第一連接段221之方向延伸。所述第四連接段224 呈“L”形，其包括—第一延伸段227及一第二延伸段现。所述第一延 伸段227 —端垂直連接於另一第二連接段222，另一端沿平行於第一 矩开^段225之方向延伸，且該第一延伸段之長度227略大於第一矩形 段225之長度。所述第二延伸段228之長度大於第二矩形段226之長 度，該第二延伸段228之一端垂直連接於第一延伸段227之末端，另 —端沿與弟二矩形段226平行之方向延伸並越過其末端，並與第二矩 豢形段226保持一定之距離’進而以便寬頻天線2〇發生輕合效應。 所述饋入部24為倒“L”形條狀結構，其大致連接於第一連接段221 之中部。所述接地部26連接於第一連接段221靠近第三連接段223之一 端。該接地部26包括形狀及大小與饋入部24均相同之一第一接地端 262、一第二接地端264及一第二接地端266。所述饋入部24、第一接地 端262、第二接地端264及第二接地端266之一端依次等間距地垂直連接 於第一連接段221退離第·一連接段222之一側邊，另一端均沿血第一矩 形段225平行之方向延伸。 所述切換開關30—端電性連接於所述接地點18，另一端可於受到 201112491 觸發後（如使用者藉由按蝴節或脈衝觸發）切換於所述第一接地端 262、第二接地端264與第三接地端挪之間。通常，習知之類比開關或 •積體電路（Integrate Circuit，1C)即可承擔此任務。 .安裝所述寬頻天線辦，魏將所賴射域22藉由饋入部24 及接地部26之狀而於紐1()之料_ 16以。以此使饋入 部24之另-端垂直連接於淨空區域16，並藉由電氣走線之形式與基 板10之饋人點紐連接’以為所述寬頻天線2G提供峨饋入。再使 ，第-接地端262、第二接地端264及第三接地端挪之另一端垂直於 頂面14之淨空區域16上，並分職由所述讀_ %絲㈣上 之接地點18電性連接，藉此為所述寬頻天線如提供接地。此時第一 連接段221將平行於基板之頂面14，同時使與第一矩形段奶相連之 -第二連接段222與基板10之端面13大致平齊，第二矩形段226與 側面12平齊’第二延伸段228越過侧面12而從基板ι〇之底面邊緣伸 出。如此，即將寬頻天線2〇裝設於基板1〇上。 當電訊號從饋入部24饋入後，切換開關30可依據無線通訊裝置 ⑽適用之網路切換於所述第一接地端262、第二接地端故及第三接 地端266之間’以此形成不同電氣長度之飾區域並藉由第三連接 段223及第四連接段224之間之耗合效應從而獲得不同之操作頻率。 具體地說，當切換開關電性連接於第—接地端脱時，此時所述寬頻 天線20之中心操作頻率約為〇 9GHz及i 8GHz ;當切換開關3〇電性 連接於第二接地端264時’此時所述寬頻天線2〇之中心頻率約為 0.925GHz及L95GHZ;當切換開關3〇電性連接於第三接地端施時， 此時所歧頻錄20之巾心_相料a95GHz及2o5gHz。如此 藉由切換開㈣雜連接於寬頻天線2()不同之接地端，即形成不同 201112491 電氣長度之輻射區域，從而獲得較寬之天線帶寬。 ® 5所示為本發明較佳實施例之無線通訊敦置100之返回 • (RetumWRL)。_般以天線之電壓駐波比(偏聯⑽㈣二 ‘ 墙缺細娜，礙铜員耗值等於 刀、（）t’返回指耗值小於等於__之頻率範圍均可 =作之頻帶。曲線！_3分職表切換關3Q紐連接於所述第二接地 端泥、第二接地端撕與第三接地端266時寬頻天線2〇之返 « 3可見’所述無線通訊裝置綱之第—工作頻段_.9,5(^， 第二工作頻段約為1.7-2.1GHZ。 圖6所示為本發明無線通訊裝置励之輕射效率。曲線4-6分別代 表切換=關30電性連接於所述第一接地端啦、第二接地端撕與第 二接地端266時宽頻天線2〇之輕射效率，由圖4可知，該寬頻天線 20於0.9M).95GHz及1.7_2.1GHz之輕射效率均滿足天線工作設計要求。 可以理解’所述之接地部26不限於包括帛-接地端262、第二接 地端曰264及第三接地端266，於實際設計製造階段，可依據帶寬之需 求適里增加或減少接地端之數量，如2個或4個接地端。同時第一接 地端262、第—接地端264、第三接地端266及饋入部％之間距也可 以根據實際需求設置。 可以理解’所述之切換開關3〇也可藉由電容或電感器件與接地點 18相連接。 可以理解’所述之輕射主體22不限於本實施例中所述之結構，於 實際設計製造階段，可_任意—種形狀之天線輻射主體，只要其上 成置^>個上述之接地端，且其電氣長度、阻抗匹配及耦合效應等滿 足特疋關係m彳達所需之天線驗鮮及帶寬。 201112491 综上所述，本發明符合發明專利要件，表依法 以上所述相躲㈣德佳實_，树仅= ’ 或變化，皆應涵胁以下申請專職_。 轉之纽修傅 【圖式簡單說明】 圖 圖1係本發明較佳實施例之無線通訊裝置立體示意 圖2 示意圖 係本發明較佳實施例之寬頻天線裝設於無線通訊装置基板上之 圖3係本發明較佳實施例之寬頻天線之立體示意圖； 圖4係本發明較佳實施例之無線通訊裝置之功能模組圖； 圖5係本發明較佳實施例之寬頻天線之返回損耗示意圖； 鲁圖6係本發明較佳實施例之寬頻天線之輕射效率示意圖。 基板 10 端面 13 淨空區域 16 寬頻天線 20 第一連接段 221 第三連接段 223 第一矩形段 225 【主要元件符號說明】 無線通訊裝置 100 側面12 12 頂面 14 接地點 18 輻射主體 22 苐一連接段 222 第四連接段 224 201112491 第二矩形段 226 第二延伸段 228 接地部 26 第二接地端 264 切換開關 30 曲線 1-6 第一延伸段 227 饋入部 24 第一接地端 262 第三接地端 266 殼體 50Device ’ CCD) (10) The antenna of the 胄 嫌 嫌 嫌 嫌 嫌 嫌 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线The broadband antenna 2 can be shouted by a metal material, and the broadband antenna 2A includes a radiation body 22, a feed portion 24, and a ground portion 26. The radiating body 22 is a strip-shaped structure, and includes a first connecting section 221, two second 201112491 connecting #222, a second connecting section 223 and a fourth connecting section 224. The first connecting section is wider, and the second connecting section 222, the third connecting section 223 and the fourth connecting section are both visible and smaller than the width of the first connecting section Π. The first connecting section is a straight elongated strip structure, and the two second connecting sections 222 are vertically connected to the two ends of the first connecting section 221 and extend in parallel. The third connecting section has a "B," shape, which includes a rectangular section 225 and a second rectangular section. One end of the first rectangular section 225 is perpendicularly connected to one of the second connecting sections 222, and is straight. The second rectangular section 226 is perpendicularly connected to the end of the first rectangular section of milk and extends in a direction parallel to the first connecting section 221. The connecting section 224 has an "L" shape, and includes a first extending section 227 and a second extending section. The first extending section 227 is vertically connected to the other second connecting section 222, and the other end is parallel to The length of the first extension section 225 extends, and the length 227 of the first extension section is slightly larger than the length of the first rectangular section 225. The length of the second extension section 228 is greater than the length of the second rectangular section 226, the first One end of the second extension section 228 is perpendicularly connected to the end of the first extension section 227, and the other end extends in a direction parallel to the second rectangular section 226 and passes over the end thereof and maintains a certain distance from the second rectangular section 226. In turn, a light-weight effect occurs in the broadband antenna 2〇. The feeding portion 24 is an inverted "L"-shaped strip structure which is substantially connected to the middle of the first connecting portion 221. The ground portion 26 is connected to one end of the first connecting portion 221 near the third connecting portion 223. The ground portion 26 The first grounding end 262, the second grounding end 264 and the second grounding end 266 are identical in shape and size to the feeding portion 24. The feeding portion 24, the first grounding end 262, the second grounding end 264, and One end of the second grounding end 266 is vertically connected to the first connecting section 221 at a distance from one side of the first connecting section 222, and the other end extends in a direction parallel to the first rectangular section 225 of blood. The switch 30 is electrically connected to the grounding point 18, and the other end is switchable to the first grounding end 262 and the second grounding end 264 after being triggered by the 201112491 (if the user triggers by a butterfly or a pulse). Usually, the analog switch or integrated circuit (1C) can undertake this task. The portion of the inlet portion 24 and the ground portion 26 is formed by the material _ 16 of the button 1 In this way, the other end of the feeding portion 24 is vertically connected to the clearance area 16, and is connected to the feeder point of the substrate 10 by means of an electrical trace to provide the 宽 feed for the broadband antenna 2G. The other ends of the first grounding terminal 262, the second grounding end 264 and the third grounding end are perpendicular to the clearance area 16 of the top surface 14, and are electrically connected by the grounding point 18 on the read_% wire (4). Thereby, the grounding of the broadband antenna is provided, for example, the first connecting section 221 will be parallel to the top surface 14 of the substrate, and the second connecting section 222 connected to the first rectangular section of milk and the end surface 13 of the substrate 10 Substantially flush, the second rectangular section 226 is flush with the side 12' and the second extension 228 extends over the side 12 from the bottom edge of the substrate. In this way, the broadband antenna 2 is mounted on the substrate 1A. After the electrical signal is fed from the feeding portion 24, the switching switch 30 can be switched between the first grounding end 262, the second grounding end and the third grounding end 266 according to the network applicable to the wireless communication device (10). The decorative regions of different electrical lengths are formed and the different operating frequencies are obtained by the depletion effect between the third connecting section 223 and the fourth connecting section 224. Specifically, when the switch is electrically connected to the first ground, the center operating frequency of the broadband antenna 20 is about GHz9 GHz and i 8 GHz; when the switch 3 is electrically connected to the second ground. At 264 hrs, the center frequency of the broadband antenna 2 此时 is about 0.925 GHz and L95 GHZ; when the switch 3 is electrically connected to the third ground, the volume of the ray is 20 A95GHz and 2o5gHz. In this way, by switching the (four) miscellaneous connection to the different grounding ends of the broadband antenna 2 (), a radiation area of different electrical lengths of 201112491 is formed, thereby obtaining a wider antenna bandwidth. ® 5 shows the return of the wireless communication device 100 (RetumWRL) of the preferred embodiment of the present invention. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Curve!_3 sub-table switching switch 3Q button is connected to the second ground end mud, the second ground end is torn and the third ground end 266 is wideband antenna 2 〇 back « 3 visible 'the wireless communication device program - Working frequency band _.9, 5 (^, the second working frequency band is about 1.7-2.1 GHZ. Figure 6 shows the light-emitting efficiency of the wireless communication device of the present invention. Curves 4-6 represent switching = 30 electrical properties, respectively. The light-emitting efficiency of the broadband antenna 2 is connected to the first ground terminal, the second ground end, and the second ground 266. As can be seen from FIG. 4, the broadband antenna 20 is at 0.9 M).95 GHz and 1.7_2. The light-efficiency efficiency of the 1 GHz meets the antenna design requirements. It can be understood that the grounding portion 26 is not limited to include the 帛-ground terminal 262, the second ground terminal 264, and the third ground terminal 266, in the actual design and manufacture stage. The number of ground terminals can be increased or decreased according to the bandwidth requirement, such as 2 or 4 ground terminals. The distance between the terminal 262, the first grounding terminal 264, the third grounding terminal 266 and the feeding portion % can also be set according to actual requirements. It can be understood that the switching switch 3 can also be connected to the grounding point 18 by a capacitor or an inductive component. It can be understood that the above-mentioned light-emitting body 22 is not limited to the structure described in the embodiment, and in the actual design and manufacture stage, the antenna of the arbitrary-type antenna can be radiated as long as it is placed on the above-mentioned The grounding end, and its electrical length, impedance matching and coupling effect meet the special antenna relationship and bandwidth required for the special relationship. 201112491 In summary, the invention complies with the invention patent requirements, the table according to the above Hiding (four) Dejia Shi _, tree only = ' or change, should cover the following application full-time _. Turn to New repair Fu [schematic description] Figure 1 is a schematic diagram of a wireless communication device according to a preferred embodiment of the present invention 2 is a perspective view of a broadband antenna of a preferred embodiment of the present invention installed on a substrate of a wireless communication device; FIG. 3 is a perspective view of a broadband antenna according to a preferred embodiment of the present invention; FIG. 4 is a preferred embodiment of the present invention. FIG. 5 is a schematic diagram showing the return loss of a broadband antenna according to a preferred embodiment of the present invention; and FIG. 6 is a schematic diagram of the light-emitting efficiency of a broadband antenna according to a preferred embodiment of the present invention. Area 16 Broadband antenna 20 First connection section 221 Third connection section 223 First rectangular section 225 [Description of main components] Wireless communication device 100 Side 12 12 Top surface 14 Ground point 18 Radiation body 22 First connection section 222 Fourth connection Section 224 201112491 second rectangular section 226 second extension section 228 grounding portion 26 second grounding end 264 switching switch 30 curve 1-6 first extension section 227 feed portion 24 first ground end 262 third ground end 266 housing 50
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