201017989 九、發明說明： 【發明所屬之技術領域】 本發明係關於—種多頻天線，尤其是有關於—種適合 内建於筆記型電腦之多頻行動通訊裝置天線。 【先前技術】 ::無線通訊的快速發展，舉凡無線通訊產 求，在外型上皆以輕、薄、短、小為潮流趨 也無線通訊產品又必須能提供多樣化服務， =内部的有限空間卜因此放置天線的空間也相= 及且近幾年來’隨著電腦計運算處理器技術的普 電；人們使用電腦的習慣漸漸由固定地點的桌上型 ，方便！帶的筆記型電腦為重心，也正因如此 二t服不僅需要取代桌上型電腦的資料處理工作， 備強而有力的行動通訊能力。而做為生活工 建：：：=的行動通訊裝置，筆記型電腦也逐漸需要内 心！ 糸統模組，相對應而產生的問題，即是内 部天線的配置問題，數彻工μ 卩疋鬥 螢幕的上方，冑出液曰馨^同時被放置於筆記型電腦 度需要降低支禮背板處，這使得天線的高 品：二Γ，筆記型電腦也如同手機等終端產 ^ ^ 疋"湖流趨勢，當筆記型電腦液曰#篡盥 將成為主流。 的同時，薄形化、平面結構的天線 201017989 -一般常見於筆記型電腦的WWAN頻帶多頻天線，如美 國專利公告號第US 7,375,686 B2號“倒F形天線（Planar inverted F antenna and the method of making the same)’’ ，其揭示一 種倒F形天線’並使用於行動通訊系統GSM850 (824〜894)/ 900 (890 〜960 MHz)及 GSM1800 (1710 〜1880 MHz)/1900 (1850 〜 1990 MHZ)/UMTS (1920〜2170 MHz)操作之内藏式手機天線的 例子，可達成多頻操作，但上述專利案所揭露之結構雖是 平面結構，但其南度過面，不適合配置於筆記型電腦液晶 〇 螢幕之上方。 在本發明中我們提出一種創新的多頻行動通訊裝置天 線设計，將訊號源饋入一組並聯的單極天線與環形天線， 其中單極天線與其饋入端之間使用一電感性元件，使該單 極天線有別於傳統單極天線，而操作於接近其六分之一波 長之共振模態，以達到縮小單極天線尺寸之功效；同時，201017989 IX. Description of the Invention: [Technical Field] The present invention relates to a multi-frequency antenna, and more particularly to a multi-frequency mobile communication device antenna suitable for use in a notebook computer. [Prior Art] :: The rapid development of wireless communication, in the wireless communication production, in the appearance of light, thin, short, small trend, wireless communication products must also provide a variety of services, = internal limited space Therefore, the space for placing the antenna is also = and in recent years, with the computer computing processor technology; the habit of using computers has gradually become a fixed-top table type, convenient! With the focus on the notebook computer, it is also because of this, the two services need to replace the data processing work of the desktop computer, and have strong mobile communication capabilities. As a mobile communication device for life construction:::=, the notebook computer also needs the heart gradually! The problem with the corresponding system is the configuration problem of the internal antenna. The number of the internal antenna is on the top of the screen, and the liquid is discharged from the notebook. At the board, this makes the antenna high-quality: the second, the notebook computer is also like the mobile phone and other terminal production ^ ^ 疋 " lake trend, when the notebook computer liquid 曰 # 篡盥 will become the mainstream. At the same time, the thinned, planar structure of the antenna 201017989 - commonly used in the WWAN band multi-frequency antenna of the notebook computer, such as the US Patent Publication No. US 7,375,686 B2 "Planar inverted F antenna and the method of Making the same)'', which reveals an inverted F-shaped antenna' and makes it used in mobile communication systems GSM850 (824~894)/900 (890~960 MHz) and GSM1800 (1710~1880 MHz)/1900 (1850 ~ 1990 MHZ / UMTS (1920 ~ 2170 MHz) operation of the built-in mobile phone antenna example, can achieve multi-frequency operation, but the structure disclosed in the above patent is a flat structure, but it is too far-reaching, not suitable for configuration in the notebook Above the computer LCD screen. In the present invention, we propose an innovative multi-frequency mobile communication device antenna design, feeding a signal source into a group of parallel monopole antennas and loop antennas, wherein the monopole antenna and its feed end Using an inductive component, the monopole antenna is different from the conventional monopole antenna, and operates at a resonance mode close to one-sixth of its wavelength to achieve the effect of reducing the size of the monopole antenna. ;Simultaneously,
%形天線則使用由耗合金屬片與連接金屬、線所構成之印刷 式匹配電路’該匹配電路等效於—串聯之晶片電容與晶片 電感所構成之電路，藉由此印刷式匹配電路所激發之環形 天線’亦有別於傳統環形天線是以二分之—波長共振模態 做為基頻共振，此環形天線是操作於接近其三分之一波長 之共振· ’目此料㈣縮小尺寸之功效。本項天線^ 計的低頻操作頻帶可以提供一大約⑽麻卿〜獅麻） :刼作頻寬’係由環形天線的第一共振模態（接近三分之 波長之共振模態）與單極天線之共振模態（接近六分之 8 201017989 一波長之共振模態）所合成之一寬頻操作模態，提供 ⑺腦細頻帶之操作需求，4天線在此需求頻帶内之 返回損失皆有高於6dB的表現；❿高頻操作頻帶則由環带 天線之二分之-波長共振㈣所構成，且該共振模熊呈' 7 單一杈態雙共振之特性，形成一約52〇MHz(_〜_ MHz)之操作頻寬，符合gsm18〇〇/19〇〇/umts操作需求且 此所需頻帶範圍171G〜217_z的返回損失值亦 6 dB的矣規。 β μ 0The %-shaped antenna uses a printed matching circuit composed of a metal piece and a connecting metal and a wire. The matching circuit is equivalent to a circuit composed of a chip capacitor and a chip inductor in series, whereby the printed matching circuit is used. The excited loop antenna is also different from the traditional loop antenna. It is based on the two-wavelength resonance mode as the fundamental resonance. The loop antenna is operated close to its one-third wavelength resonance. The effect. The low-frequency operating band of this antenna can provide an approximate (10) Ma Qing ~ Shima): the frequency bandwidth is the first resonant mode of the loop antenna (resonance mode near the three-point wavelength) and the monopole The resonant mode of the antenna (nearly six-sixth of the 201017989 resonant mode of one wavelength) is a broadband operating mode that provides (7) the operational requirements of the brain thin band, and the return loss of the four antennas in this demand band is high. At 6dB performance; the ❿ high-frequency operating band is composed of the two-band-wavelength resonance (4) of the loop antenna, and the resonant mode bear exhibits a characteristic of a single single-state double resonance, forming an approximately 52〇MHz (_~ The operating bandwidth of _ MHz) is in accordance with the gsm18〇〇/19〇〇/umts operation requirement and the return loss value of this required band range of 171G~217_z is also 6 dB. β μ 0
【發明内容】 如上所述，本發明之目的在於提供一種筆記型電腦 WWAN頻帶天線的創新設計，不僅可以達成適用於現今並 遍使用的GST^oAoomoo/mo/uMTs通訊頻帶的多頻天線二 計，同時本發明天線之尺寸僅有70x9mm2，且》平面式: 構，便於使用印刷製程製作，以節省製作成本，同時平= 式的結構相較於立體式的結構，更適合應用於薄形筆記型 ❹電腦；而又本項天線設計結構簡單、操作機制明確、譽作 容易，並具有節省筆記型電腦天線配置空間之優點。、 本發明天線包含：-金屬板、一介質基板、一接地面 以及-輻射部。其中該介質基板與該金屬板局部重疊配置 ，而該接地面位於該介質基板上與該金屬板局部重疊處， 並電氣連接至該金屬板。該輻射部位於該介質基板上，包 含一饋入金屬部、一第一輻射部及一第二輻射部；其中= 饋入金屬部接近該接地面，與該接地面之間具有一少於3 201017989 麵之饋入間距；而該第—輕射部具有一輻射金屬臂及一 T感性元件，其中—金屬臂之長度接近該天線最低摔 作頻帶中心頻率之六公夕e ^ 之波長，而該電感性元件之二端 刀别連接至5亥輕射金屬臂及該輕射部之該饋入金屬部；又 =輕射部具有一輕射金屬環、一搞合金屬片及一連接 ’其中該輕射金屬環之長度接近該天線最低操作頻 帶中心頻率之二公夕—、士 E ^ p ^ 、— 波長，且該輻射金屬環包圍該耦合SUMMARY OF THE INVENTION As described above, an object of the present invention is to provide an innovative design of a notebook computer WWAN band antenna, which can achieve not only a multi-frequency antenna for a GST^oAoomoo/mo/uMTs communication band that is used today and widely used. At the same time, the size of the antenna of the invention is only 70x9mm2, and the "planar: structure" is convenient to use the printing process to save the production cost, and the flat structure is more suitable for the thin note than the three-dimensional structure. The type of computer is simple; the antenna has a simple design structure, clear operating mechanism, easy reputation, and has the advantage of saving the configuration space of the notebook computer antenna. The antenna of the present invention comprises: a metal plate, a dielectric substrate, a ground plane, and a radiation portion. The dielectric substrate is partially overlapped with the metal plate, and the ground plane is located on the dielectric substrate and partially overlaps the metal plate, and is electrically connected to the metal plate. The radiating portion is located on the dielectric substrate, and includes a feeding metal portion, a first radiating portion and a second radiating portion; wherein = the feeding metal portion is close to the grounding surface, and the grounding surface has a less than 3 201017989 The feeding pitch of the surface; and the first light portion has a radiating metal arm and a T inductive component, wherein the length of the metal arm is close to the wavelength of the sixth frequency of the lowest frequency of the antenna of the antenna, and The two end knives of the inductive component are connected to the 5 hai light metal arm and the feeding metal portion of the light ray portion; and the light ray portion has a light metal ring, a metal piece and a connection Wherein the length of the light-emitting metal ring is close to the center frequency of the lowest operating frequency band of the antenna, the E ^ p ^ , the wavelength, and the radiating metal ring surrounds the coupling
金屬片及該連接金屬绩 &4P 崁贪屬線而该輻射金屬環之一端大致平杆 於該搞合金屬片，並具有一少於3mm之耗合間距’又^ 一端電氣連接至該接地面，而該連接金屬線之長度以另 20mm ’且其一端連接至 5 逆按主°亥耦合金屬片，其另一端則連接 至该輻射部之該饋入今麗Λ ^ ^ 金屬口Ρ。上述之該耦合金屬片之形狀 可以為一直線形狀、一 L 7狀 A ± L形狀或一T形狀；且該第—輕勒 部之輻射金屬臂經過至少—^射 -人之奇折，以降低天線尺寸. 又該電感性元件為一晶月雷片The metal piece and the connecting metal material & 4P 崁 属 而 而 而 而 而 而 而 而 而 而 而 而 而 而 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一The ground, and the length of the connecting wire is another 20 mm' and one end thereof is connected to 5, and the other end is connected to the metal portion of the radiating portion. The shape of the coupling metal piece may be a straight line shape, an L 7 shape A ± L shape or a T shape; and the radiating metal arm of the first light portion is subjected to at least a singularity to reduce Antenna size. The inductive component is a crystal moon
片電感或為一金屬線以印刷或蝕刻 技術形成於該介質某相μ . J ^ 5 ’述之該輻射部之該饋入金屬 4電亂連接至-同轴傳輪線之中心導體，且 之外層接地導體電氣連接 以 傳輸線 記型電腦液晶勞幕之支撐 /金屬板為-筆 接地面。 又q板或為-仃動通訊裝置之系統 在本發明所提出的天線設計，是由 並聯的單極天線（第一輻 饋入源饋入至 &射口P )以及架形天線（笙_ 部），其中環形天線的第㈣線弟—te射 /、振模悲與早極天線之共振模 201017989 • —寬頻操作（低頻操作頻帶），提供G祕_〇頻 二、视而^形天線的高頻模態則形成天線的高頻操作頻 二，G__/__TTS頻帶操作。本項設計申的單 件相if射金屬f與天線之饋人端之間，以—電感性元 件相連接，此電感性曰 刻之技術形成於該:f二電== 使單極天線之共振模態由傳統的四分之二： ❹二刀之一波長’而該共振模態並具有良好之阻抗匹配 ^一方面’本項設計中之環形天線，是使用印刷式匹配 線之饋人，此印刷式匹配電路由―印刷式電容 使用: ）及—印刷式電感（連接金屬線）所組成， 式匹：電路，得以激發具有良好匹配之輕射 丄*的—刀之-波長共振模態，用以與前述單極天線之 波長共振模態合成一寬頻頻寬，提供低頻操作頻 I應用’ ·而同時使用了印刷式匹配電路饋入之輻射金屬 ❹核，其二分之一波長共振模態具有單一模態雙共振之特性 ，而形成-寬頻頻寬，並具有良好的阻抗匹 頻操作頻帶之應用。 」权供间 一、上述天線設計之低頻操作頻帶（單極天線共振模離盘 =之-波長環形天線共振模態所合成）提供、 〜刪舰）的操作頻寬，可涵蓋GSM嶋 6"的表現;高頻操作頻帶—波長環 201017989 模態）則可形成一約520MHz_〜217〇MHz)之操作 ，並涵蓋gSM1800/1900/umt_帶的操作需求，且在此所需 頻帶範圍1710〜2170驗的返回損失值亦皆有高於6dB的 表現，符合應用需求。同時本天線設計非但結構簡單、操 作機制明確、為-平面結構，同時其天線面積僅7㈣咖2 ，特別適合做為薄形筆型電腦之内藏式多頻天線，故 產業應用之價值。 ' ❹ II配合下列圖式、實施例之詳細說明及申請專利範圍 將上述及本發明之其他目的與優點詳述於後。 【實施方式】 八第1圖為本發明天線一實施例丨結構圖。實施例i包 ^ 金屬板10、—介質基板11、—接地面12以及一輻射 部13，其中該介質基板丨丨，與該金屬板⑴局部重疊配置， 令k接地面12，位於該介質基板丨丨上與該金屬板局部重 ❹=處’並電氣連接至該金屬板1G ;該輕射部13，位於該介 貝基板11上，包含一饋入金屬部14、一第一輻射部ΐ3ι及 H射部132 ;其中該饋人金屬部14，接近該接地面 U，與該接地面12之間具有一少於3_之饋入間距i4i ; 而該第輻射部131 ，具有一輻射金屬臂133及一電感性 =件134，其中該輻射金屬臂133之長度接近該天線最低 :桑^帶中心頻率之六分之一波長，而該電感性元件134 為一晶片電感，其二端分別連接至該輻射金屬臂B3及該 輪射部13之該饋入金屬部14 ;又該第二輕射部132，具有 12 201017989 二輕射金屬環135、一輕合金屬» m及-連接金屬線 137 ，其中該輻射金屬環135 頻帶中心頻率之三分之 二：天線最低操作 及該連接金屬、線137，而該輕射金屬環 -翊大致平行於該耦合金屬片136 3mm之耦合間距138 ， . ^ ^ 、頁少於 至該接地面12,…： （接地端139)電氣連接 且該接金屬線137之長度至少20醜， 輕合金屬片136，其另-端則連接至該 屬部14。上述之該耗合金屬片故之 〔：為-直線形狀；且該第一輕射部131之輻射金屬臂 ,Μ二過Γ欠之¥折；又上述之該轄射部13之該饋入金屬 連接至一同軸傳輸線之中心導體ΐ5ι，且該同軸 傳輸線之外層接地導體152電氣連接至該接地面12 ;同時 該金屬板IG為-筆記型電腦液晶螢幕之支撐背板。 土 2圖為第1圖之實施例！的返回損失實驗量測結果 ❹本實，選擇下列尺寸進行量測：金屬㈣之尺寸為如“ 260 _ ’介質基板11為厚度〇.8mm之FR4玻纖基板，其 立寸為x2〇mm ，其中該介質基板11，與該金屬板1〇局 =疊配置’而該接地面12之尺寸為7Qxi(W，位於該 w枭基板11上與该金屬板1〇局部重疊處，並於電氣連接處 121使用金屬貫孔或是使用金屬螺絲固定而電氣連接至該 金屬板10 ,該韓射部13，位於該介質基板η上，包含一饋 金屬郤14 一第一輕射部131及一第二輻射部132 ;其 13 201017989 中該饋入金屬部14，接近該接地面12，與該接地面12之間 具有-少於3細之饋入間距141 ;而該第一輕射部⑶， 具有-輕射金屬臂133及—電感性元件134，其中 =二2度約為5〇麵’接近該天線最低操娜 中〜頻率之八刀之-波長’而該電感性元件13 值為⑽之晶片電感，其二端分別連接至該輻射金屬^ 133及_射部13之該饋人金屬部14 ;又該第二輕射部 132，具有-輕射金屬環135、一稱合金屬片说及 拔、…_ 射金屬展135之長度約為85mm 接近該天線取低操作頻帶中心頻率之三分之一波長，且該 輻射金屬環135包圍軸合金屬片136及該連接金屬線〜 137 ’該耦合金屬片為一 lx7mm2之直線形狀金屬片，而 該輻射金屬環135之-端大致平行於該搞合金屬片136， 1 具少於3mm之-合間距138，又其另一端（接地端 、，乳連接至該接地面12，而該連接金屬、線137之長度 瘳、、勺為20mm ’且其一端連接至該麵合金屬片既，其另二 端則連接至該輻射部13之該饋入金屬部14。 、 在本項天線設計中之第—輻射部131與第二輕射部 ==:!極天線與一環形天線’其中單極天線與其 電感性元件’使該單極天線有別於傳統 =天線，·作於其六分之—波長共振模態，以達到縮 屬月尺寸之功效；同時’環形天線則使用由耦合金 屬片”連接金屬線所構成之印刷式匹配電路，該匹配電路 14 201017989 • 荨效於一串連之晶片電容與晶片電感所構成之電路，藉由 此印刷式匹配電路所激發之環形天線，亦有別於傳統環形 天線是以二分之一波長共振模態做為基頻共振，此環形天 線是操作於三分之一波長共振模態，因此亦可達到縮小尺 寸之功效。誠如上所述’本天線的低頻操作頻帶Μ提供一 大約250MHz(820〜1070MHz)的操作頻寬，係由環形天線的 第一共振模態（接近三分之一波長之共振模態）與單極天 線之共振模態（接近六分之一波長之共振模態）所合成之 ❿一寬頻操作模態，提供GSM850/900頻帶之操作需求，且本 天線在此需求頻帶内之返回損失皆有高於6犯的表現；而 南頻操作頻帶22則由環形天線之二分之—波長共振模態所 構成’且該共振模態具有單一模態雙共振之特性，形成一 約520 MHz (1650〜2170 MHz)之操作頻寬，符合GSM1800 /1900/UMTS扭作需求’且在此所需頻帶範圍171〇〜2170 MHz的返回損失值亦皆有高於6 dB的表現。 ❹ 第3及第4圖分別為本發明天線之實施例1於操作頻 帶内之天線增益圖，其中第3圖為天線低頻操作頻帶 (GSM850/900頻帶）之天線增益圖’第4圖為天線高頻操作 頻帶（GSM1800/1900/UMTS頻帶）之天線增益圖。由圖中量 測數據可知，本設計於GSM850/900操作頻帶内之增益值約 •0.8〜1.3dBi，而於GSM1800/1900/UMTS操作頻帶内之增益值 約2〜4dBi ，皆符合實際應用之需求。 第5及第6圖分別為本發明天線第一其他實施例5及 15 201017989 其他實施例6結構圖。實施例5及6與實施例！的整 大致相同，惟實施例5中，第„輕射部i3i之該輕 射金屬臂533、經過二次·彎折，同時，實施例$中，其第二 幸:：部⑶之該麵合金屬片為一 L形狀；而實施例6中， 輪射部m之輕射金屬臂經過—次彎折，而第一輻射 二電感性元件634為一以印刷或飯刻技術形成於該 『基板1!之金屬、線’同時’實施例6中，其第二幸畐射部 之仙合金屬片636為一 丁形狀。然此等實施例仍皆 可達成與實施例1相同之功效。 综合上述的朗，本發明天線的結構簡單，操作機制 明確’製作成本低，採用平面結構，同時可縮減天線尺寸 ，因此本發明天線甚具高度產#應用價值，足 之範疇。 七月 惟，以上所述者，僅為本發明之較佳實施例而已，备 不能以此限定本發明實施之範圍。即大凡依本發 ^ 利範圍所作之均等變化與修飾，皆應仍屬本發 ^ 之範圍内。 兮扪涵盍 16 201017989 - 【圖式簡單說明】 第1圖為本發明天線一實施例結構圖。 第2圖為本發明天線一實施例之返回損失量測結果。 第3圖為本發明天線一實施例之天線增益圖（天線低頻頻 帶）。 第4圖為本發明天線一實施例之天線增益圖（天線高頻頻 帶）。 ❿第5圖為本發明天線第一其他實施例結構圖。 第6圖為本發明天線第二其他實施例結構圖。 【主要元件符號說明】 I :本發明天線一實施例 5 :本發明天線第一其他實施例 6 :本發明天線第二其他實施例 10 :金屬板或筆記型電腦液晶螢幕之支撐背板或行動通气 Φ 裝置之系統接地面 ° II :介質基板 12 ·接地面 121 :電氣連接處，電氣連接接地面與金屬括 13 :輻射部 131 :第一輕射部 132 :第二輻射部 133 、533、633 :輻射金屬臂 134 、634 :電感性元件 17 201017989 135 • 輻射金 屬 環 136 、 536 、 636 137 連接金 屬 線 138 耗合間 距 139 接地端 14 ： 饋 入金屬 部 141 • 饋入間 距 15 ： 同 軸傳輸 線 151 同軸傳 ¥m 線 152 二 同軸傳輸 線 16 · 筆 記型電 腦 之 21 ： 低 頻操作 頻 帶 22 ： 頻操作 頻 帶 :耦合金屬片 之中心導體 之外層接地導體 系統接地面 (天線最低操作頻帶）a sheet inductor or a metal line formed by a printing or etching technique on a phase of the medium μ. J ^ 5 'the feeding metal 4 of the radiating portion is electrically connected to the center conductor of the coaxial winding line, and The outer layer grounding conductor is electrically connected with the support of the transmission line type computer LCD screen/metal plate as the pen ground plane. The system of the present invention is designed by the parallel antenna monopole antenna (the first spoke feed source is fed to the & port P) and the rack antenna (笙_ Part), in which the fourth antenna of the loop antenna - te shot /, vibration mode and early pole antenna resonance mode 201017989 • - broadband operation (low frequency operation band), providing G secret _ 〇 frequency two, depending on the shape The high frequency mode of the antenna forms the high frequency operating frequency of the antenna, and the G__/__TTS band operates. The single-phase phase incident metal f of this design is connected with the inductive component between the feeding end of the antenna, and the inductive engraving technique is formed in the: f two electric== making the monopole antenna The resonant mode is two-thirds of the conventional one: one wavelength of the second knife' and the resonant mode has good impedance matching. On the one hand, the loop antenna in this design is a feeder using a printed matching line. The printed matching circuit is composed of a "printing capacitor:" and a printed inductor (connecting metal wire), and the circuit: a circuit that excites a knife-wavelength resonance mode with a well-matched light-emitting 丄* State, which is used to synthesize a wide frequency bandwidth with the wavelength resonance mode of the monopole antenna, and provides a low frequency operation frequency I application. · At the same time, the radiation metal nucleus fed by the printed matching circuit is used, and one half wavelength thereof is used. The resonant mode has the characteristics of a single mode double resonance, and forms a wide frequency bandwidth, and has a good impedance frequency band operation band application.权 间 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 、 天线 、 、 、 、 、 、 、 、 上述 上述 上述 天线 上述 天线 天线 天线 上述 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 performance of the high frequency operating band - wavelength ring 201017989 mode can form an operation of about 520MHz ~ ~ 217 〇 MHz), and covers the operation requirements of the gSM1800/1900/umt_ band, and the required frequency band range is 1710~ The return loss value of the 2170 test also has a performance higher than 6dB, which is in line with the application requirements. At the same time, the antenna design is simple in structure, clear in operation mechanism, and is a flat structure. At the same time, its antenna area is only 7 (four) coffee 2, which is especially suitable as a built-in multi-frequency antenna for a thin pen type computer, so the value of industrial application. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects and advantages of the present invention will be described in detail below. [Embodiment] FIG. 1 is a structural diagram of an embodiment of an antenna according to the present invention. The embodiment i includes a metal plate 10, a dielectric substrate 11, a ground plane 12, and a radiating portion 13, wherein the dielectric substrate is partially overlapped with the metal plate (1) so that the k ground plane 12 is located on the dielectric substrate. The metal plate is partially overlapped with the metal plate and electrically connected to the metal plate 1G. The light-emitting portion 13 is located on the substrate 11 and includes a feed metal portion 14 and a first radiation portion ΐ3ι. And the H-emitting portion 132; wherein the feeding metal portion 14 is close to the grounding surface U, and has a feeding pitch i4i of less than 3_ between the grounding surface 12; and the first radiating portion 131 has a radiating metal The arm 133 and an inductive component 134, wherein the length of the radiating metal arm 133 is close to the antenna minimum: one-sixth of a wavelength of the center frequency of the antenna, and the inductive component 134 is a chip inductor, and the two ends thereof are respectively Connecting to the radiating metal arm B3 and the feeding metal portion 14 of the injecting portion 13; the second light projecting portion 132 having 12 201017989 two light metal rings 135, a light metal » m and a connecting metal Line 137, wherein the radiating metal ring 135 is two-thirds of the center frequency of the band: The line operates at the lowest level and the connecting metal, line 137, and the light-emitting metal ring-翊 is substantially parallel to the coupling metal strip 136 3mm coupling pitch 138, . ^ ^, the page is less than the ground plane 12, ...: (ground The terminal 139) is electrically connected and the length of the metal wire 137 is at least 20 ugly, the metal piece 136 is lightly bonded, and the other end is connected to the genus 14. The above-mentioned consumable metal sheet is [: is a linear shape; and the radiating metal arm of the first light-emitting portion 131 is folded over by the second light-emitting portion; and the feeding of the illuminating portion 13 is also described above. The metal is connected to the center conductor ΐ5ι of a coaxial transmission line, and the coaxial transmission line outer layer ground conductor 152 is electrically connected to the ground plane 12; and the metal plate IG is a supporting backplane of the notebook computer liquid crystal screen. The soil 2 picture is the embodiment of Figure 1! The return loss experimental measurement results are measured in the following dimensions: the size of the metal (4) is such as "260 _ ' dielectric substrate 11 is FR4 glass substrate with thickness 〇.8mm, and its vertical inch is x2〇mm, The dielectric substrate 11 is disposed with the metal plate 1 and the ground plane 12 has a size of 7Qxi (W, which is partially overlapped with the metal plate 1 on the w枭 substrate 11 and electrically connected. The portion 121 is electrically connected to the metal plate 10 by using a metal through hole or a metal screw. The Korean portion 13 is located on the dielectric substrate η and includes a feed metal but a first light projecting portion 131 and a first portion. The second radiating portion 132; the feeding portion of the metal portion 14 in the vicinity of the grounding surface 12 and the grounding surface 12 having a feeding pitch 141 of less than 3 fine; and the first light-emitting portion (3), Having a light-emitting metal arm 133 and an inductive element 134, wherein = 2 degrees is about 5 ' 'close to the antenna's minimum 〜 ～ ～ 8% octave-wavelength' and the inductive element 13 is (10) a chip inductor, the two ends of which are respectively connected to the radiant metal ^ 133 and the _ emitter 13 The genus portion 14 and the second light-emitting portion 132 have a light-light metal ring 135, a spliced metal piece, and a slab, and the length of the metal 135 is about 85 mm, which is close to the center frequency of the antenna. One third of the wavelength, and the radiating metal ring 135 surrounds the axial metal piece 136 and the connecting metal wire ～ 137 'the coupling metal piece is a linear shape metal piece of lx7 mm 2 , and the end of the radiant metal ring 135 is substantially Parallel to the engaging metal piece 136, 1 has a spacing 138 of less than 3 mm, and the other end (grounding end, the milk is connected to the grounding surface 12, and the length of the connecting metal, the wire 137 is 瘳, spoon) It is 20mm' and one end is connected to the facing metal piece, and the other end is connected to the feeding metal part 14 of the radiating portion 13. The first radiating portion 131 and the second in the antenna design of the present invention Light shot ==:! The polar antenna and a loop antenna 'where the monopole antenna and its inductive component' make the monopole antenna different from the conventional = antenna, and the sixth-wavelength resonance mode is achieved The effect of reducing the size of the moon; while the 'loop antenna is used by the coupling gold a printed matching circuit composed of a connecting metal wire, the matching circuit 14 201017989 • a circuit formed by a series of chip capacitors and chip inductors, and the loop antenna excited by the printed matching circuit Different from the traditional loop antenna, the one-wavelength resonance mode is used as the fundamental resonance. The loop antenna operates in the one-third wavelength resonance mode, so it can also achieve the effect of downsizing. 'The low-frequency operating band of this antenna provides an operating bandwidth of approximately 250 MHz (820 to 1070 MHz), which is the resonance of the first resonant mode of the loop antenna (a resonant mode close to one-third wavelength) and the monopole antenna. The wideband operating mode synthesized by the modal (a resonance mode close to one-sixth wavelength) provides the operational requirements of the GSM850/900 band, and the return loss of the antenna in this demand band is higher than 6 The performance of the south frequency operating band 22 is formed by the two-way-wavelength resonance mode of the loop antenna' and the resonant mode has the characteristics of a single mode double resonance, forming an approximately 520 MHz ( The operating bandwidth of 1650~2170 MHz) is in line with the GSM1800/1900/UMTS twisting requirements' and the return loss values of the required band range of 171〇~2170 MHz are also higher than 6 dB. ❹ Figures 3 and 4 are antenna gain diagrams of the antenna of the first embodiment of the present invention in the operating band, wherein FIG. 3 is an antenna gain diagram of the antenna low frequency operation band (GSM850/900 band). FIG. 4 is an antenna. Antenna gain map for the high frequency operating band (GSM1800/1900/UMTS band). It can be seen from the measurement data in the figure that the gain value in the GSM850/900 operating band is about 0.8~1.3dBi, and the gain value in the GSM1800/1900/UMTS operating band is about 2~4dBi, which is in line with practical application. demand. 5 and 6 are respectively a structural view of the first embodiment 5 and 15 201017989 of the antenna of the present invention. Examples 5 and 6 and examples! The whole is substantially the same, except that in the fifth embodiment, the light-emitting metal arm 533 of the first light-emitting portion i3i is subjected to secondary bending, and at the same time, in the embodiment $, the second:: the side of the portion (3) The metal piece is in an L shape; and in the sixth embodiment, the light metal arm of the wheel m is subjected to the first bending, and the first radiation two inductive element 634 is formed by the printing or cooking technique. In the sixth embodiment, the metal and the wire of the substrate 1 are simultaneously in the sixth embodiment, and the second metal piece 636 of the second beam is in a shape. However, the same effects as in the first embodiment can be achieved by the embodiments. In summary, the antenna of the present invention has a simple structure and a clear operating mechanism, and the manufacturing cost is low, and the planar structure is adopted, and the antenna size can be reduced. Therefore, the antenna of the present invention has a high degree of application value and a sufficient range. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. That is, the equivalent changes and modifications made by the present invention should still belong to the present invention. Within the scope. 兮扪涵盍16 201017989 - [Figure BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural diagram of an embodiment of an antenna according to the present invention. Fig. 2 is a result of a return loss measurement of an antenna according to an embodiment of the present invention. Fig. 3 is an antenna gain diagram of an antenna according to an embodiment of the present invention. Fig. 4 is an antenna gain diagram (antenna high frequency band) of an antenna according to an embodiment of the present invention. Fig. 5 is a structural diagram of a first embodiment of the antenna of the present invention. Fig. 6 is a second embodiment of the antenna of the present invention. [Structure of the main components] I: Antenna of the present invention Embodiment 5: Antenna of the present invention First Embodiment 6: Antenna of the second embodiment of the present invention 10: Metal plate or notebook computer LCD screen System ground plane supporting the backplane or mobile ventilation Φ device ° II: dielectric substrate 12 · ground plane 121 : electrical connection, electrical connection ground plane and metal 13 : radiating part 131 : first light shot 132 : second radiation Parts 133, 533, 633: radiating metal arms 134, 634: inductive elements 17 201017989 135 • radiating metal rings 136, 536, 636 137 connecting wires 138 spacing 139 grounding 14 : Feeding metal part 141 • Feeding pitch 15 : Coaxial transmission line 151 Coaxial transmission ¥ m line 152 Biaxial transmission line 16 · Notebook 21 : Low frequency operation band 22 : Frequency operation band: Coaxial metal sheet center conductor outer layer Grounding conductor system ground plane (lowest operating band of the antenna)
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