201044689 六、發明說明： 【發明所屬之技術領域】 本發明係有關於一種數位電視天線結構，尤指—種。 寬頻操作，且可便於驢天線接㈣樣之寬紐=電視^ 線結構。 【先前技術】 行動多媒體裝置的應用日漸增多，例如數位電視的推 廣與普及，以提供使用者更為多樣化的應用功能，比如車 用數位接收系統可以提供乘客數位電視的觀賞，·一般用戶 也可以隨時收看體育節目；或是隨選視訊節目等等。傳統 的數：電視接收裝置通常會利用一接收天線才能接受上 ^之節目訊號’例如隨身數位電視接收機盒設有金屬棒的 單極天線。 上述的金屬棒單極天線，高度一般介於13至17公 ❹刀，亚且會額外搭配一傳輸線，該傳輸線的長度一般介於 100至150公分。，然而這類天線通常係為窄頻天線天線 的=抗頻寬僅有1〇〇 i 200MHz左右，因此，上述天線的 頻寬並無法完全涵蓋較大的頻寬應用，例如47〇至862腿z 之數位電視頻帶，是故，在數位電視廣播服務訊號較弱的 區域，窄頻天線並無法發揮較佳的功效。 另一方面，外接式的數位電視接收天線又衍生出平面 形式的偶極天線，其一方面同樣具有無法涵蓋全部的數位 電視頻帶的問題，且由於該天線的固定型態，在一般的應 201044689 用使用者必須移動该天線的签體才倉^ ^ 號接收，換言之，在使用上極為不便。趟罐 ▲緣是，本發明人有感上述缺失之可改善，提出 计合理且有效改善上述缺失之本發明。 又 【發明内容】 本= 月之主要目的’在於提供一種寬頻數位電視天線 :、為—種複合式、且内建有高階模態匹配電路之偶 r =線設計。本發明之寬頻數位電視天線結構利用偶極天 模態匹配電路的整合，可產生_寬頻操作之天線 、、〇構，以獲致較佳的訊號品質。 M成上述之目的’本發明係提供一種寬頻數位電 視，包括一基板；一幸畐射面，其成型於該基板 之-表面上’該輻射面包括一第一輻射區域、一第二輻射 區域及-形成於該第一輕射區域與該第二幸昌射區域之間 的狹縫，其中該第-補區域具有—第—饋人點與一第一 連接點’該第二輕射區域具有一第二饋入點及一第二連接 點，該第二饋入點係對應該第一饋入點；一第一輻射元 件，其樞接於該第-連接點；以及一第二輻射元件，其樞 接於該第二連接點，其中該第一輕射元件與該第二輻射元 件係建構成該寬頻數位電視天線結構之偶極天線結構，且 該偶極天線結構係可相對於該輻射面進行樞轉，以提升訊 遽品質。 〃本發明具有以下有益的效果：本發明利用該輕射面之 第-輕射區域、第二輕射區域與婉蜒成型的狹縫所產生的 201044689 ^白模態匹配電路與金屬棒偶極天線的整合，使 態可以被有效的激發，並與偶極天線的基本模態相级」，、 以達成-在寬_帶下操作的天線結構。再者，本° 提出之寬缝位電視天線結構更具有易於_，易^ 天線接收角度與位置的功能。 α 為使能更進一步瞭解本發明之特徵及技術内容，請參 閱以下有關本發明之詳細說明與附圖，然而所附圖式：提 供參考與說明用，並非用來對本發明加以限制者。 【實施方式】 請參閱第-圖及第-Α圖，本發明係提供—種寬頻數 位電視天線結構1，其係為一種内建有高階模態匹配電路 的接收天線結構，並配合可調整方向的拉桿式金屬棒，以 達成寬頻操作的數位電視接收天線。該寬頻數位電視天線 結構1包括一基板1〇、一輻射面丄i、一第一輻射元件 1 2及一第二輻射元件1 3。 Ο 其中，該基板1〇係為一種承載板體，其係用以成型 上述之輻射面11，且該第一輻射元件i 2與該第二輻射 元件1 3亦連接於該基板1 〇上。而在一具體實施例中， β亥基板1 〇係為一種介質基板，例如FR4之介電材質。 該輕射面1 1係成型於該基板1 〇的一表面上，該轄 射面1 1包括一第一輻射區域1 1 0、一第二韓射區域1 11及一形成於該第一輻射區域11〇與該第二輻射區 域1 1 1之間的狹縫1 1 2。上述的第一輻射區域1 1 0、第一輪射區域1 1 1及狹縫1 1 2係可形成一種匹配 201044689 電路而藉由匹配電路的作用，可以成功的激發天線 =二共振模‘態（即高階模態），且該狹縫1 1 2係婉蜒 51於该第—㈣區域i i Q與該第二轄射區域1 1 1 之間’且該狹縫112具有至少-個彎折部，藉以延長天 線結構在第二共振模態的有效共振路徑與電流路徑，進而 大幅降低第二共振模態的操作頻率。 另一方面，該第一輻射區域丄i 〇具有一第一饋入點 1 100與-第-連接點1 101 ;該第二輻射區域。 1具有Γ第二饋入點1110及一第二連接點111 1。5亥第二饋入點111〇的位置係對應於該第一饋入點 1 1 0 0的位置，以利訊號之饋入。換言之，該寬頻數位 電視天線結構1更進—步包括__饋人訊號線丄4，其中該 饋入訊號線1 4包含一中心導體丄4 1及一外層接地導 體1 4 2，該中心導體1 4 i連接於該第一饋入點i工〇 〇，5亥外層接地導體1 4 2連接於該第二饋入點1 1 1 0 ° 再者，第一輻射元件1 2係樞接於該第一連接點1 1 〇 1，同樣地，第二輻射元件1 3係樞接於該第二連接點 1 1 1 1。該第一輻射元件1 2與該第二輻射元件1 3均 為一種拉桿式偶極金屬棒，故其為一種偶極天線的架構， 換言之，該第一輻射元件1 2與該第二輻射元件1 3係可 被激發產生基本共振模態（第一共振模態）。而本發明的目 的即在於利用輻射面1 1所形成的匹配電路激發天線結 構之第二共振模態（即高階模態），並降低第二共振模態 201044689 的操作頻率，你筮-& 此At 的美太止挺一，、振模悲的操作頻率接近於偶極天線 々土 (第—共振模態）頻 寬頻數位電視天線結構】 運成見领掉作之 _ φ5 , 稱i而戎弟一輻射元件1 2與該第 偲：二 3係建構成該寬頻數位電視天線結構1之 1呈右广結構，換言之’本發明之寬頻數位電視天線結構 拉伸亦可旋動之偶極天線結構，藉以調整上 線結構的”角度與位置’以解決傳統之平面形 Ο =的固疋偶極天線所造叙訊號不佳以及調整不易201044689 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a digital television antenna structure, and more particularly to a type. Wide-band operation, and can be easily connected to the antenna (4) wide-width = TV ^ line structure. [Prior Art] The application of mobile multimedia devices is increasing, such as the promotion and popularization of digital TVs, to provide users with more diversified application functions, such as digital receiving systems for vehicles, which can provide passengers with digital TV viewing, and general users. You can watch sports programs at any time; or choose video programs and so on. Conventional numbers: TV receiving devices usually use a receiving antenna to receive the program signal, such as a monopole antenna with a metal bar in the digital TV receiver box. The metal rod monopole antenna described above generally has a height of 13 to 17 gongs, and is additionally provided with a transmission line, which is generally between 100 and 150 cm in length. However, such antennas are usually narrow-band antenna antennas. The anti-bandwidth is only about 1 〇〇i 200 MHz. Therefore, the bandwidth of the above antennas cannot fully cover larger bandwidth applications, such as 47 〇 to 862 legs. The digital TV band of z is the reason. In areas where digital TV broadcasting service signals are weak, narrow-band antennas cannot perform better. On the other hand, the external digital TV receiving antenna derives a planar form of dipole antenna, which on the one hand also has the problem of not covering all the digital TV bands, and due to the fixed type of the antenna, in general, 201044689 It is extremely inconvenient to use in the case where the user must move the tag of the antenna to receive the tag.趟 ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ [ SUMMARY OF THE INVENTION] The main purpose of this month is to provide a broadband digital television antenna: an even r = line design with a hybrid and built-in high-order modal matching circuit. The wide-band digital television antenna structure of the present invention utilizes the integration of the dipole-day modal matching circuit to generate an antenna and a wide-band operation for better signal quality. The present invention provides a broadband digital television comprising a substrate; a slit formed between the first light-emitting area and the second light-emitting area, wherein the first-complementing area has a first-feeder point and a first connection point' a second feed point and a second connection point, the second feed point corresponding to the first feed point; a first radiating element pivotally connected to the first connection point; and a second radiating element The first light-emitting element and the second radiating element are configured to form a dipole antenna structure of the broadband digital television antenna structure, and the dipole antenna structure is relative to the radiation Pivot the face to improve the quality of the message. The present invention has the following beneficial effects: the present invention utilizes the 201044689^ white mode matching circuit and the metal rod dipole generated by the first light-lighting region, the second light-emitting region and the 婉蜒-formed slit of the light-emitting surface. The integration of the antenna allows the state to be effectively excited and phased with the fundamental mode of the dipole antenna to achieve an antenna structure that operates under a wide band. Furthermore, the wide-slot television antenna structure proposed by the present invention has the function of being easy to _, easy to receive the angle and position of the antenna. The present invention is described in detail with reference to the accompanying drawings. [Embodiment] Referring to the first-figure and the first-figure, the present invention provides a wide-band digital television antenna structure 1, which is a receiving antenna structure with a high-order modal matching circuit built therein, and can be adjusted with an adjustable direction. The rod-type metal rod is used to achieve wide-band operation of the digital TV receiving antenna. The broadband digital television antenna structure 1 includes a substrate 1 , a radiating surface 丄i, a first radiating element 12 and a second radiating element 13 . The substrate 1 is a carrier plate for forming the radiating surface 11 , and the first radiating element i 2 and the second radiating element 13 are also connected to the substrate 1 . In one embodiment, the β-substrate 1 is a dielectric substrate, such as a dielectric material of FR4. The light-emitting surface 11 is formed on a surface of the substrate 1 , the radiant surface 1 1 includes a first radiation region 1 1 0 , a second Korean region 1 11 , and a first radiation formed thereon A slit 11 1 between the region 11 〇 and the second radiant region 1 1 1 . The first radiation area 110, the first wheel area 1 1 1 and the slit 1 1 2 can form a matching circuit of 201044689 and can successfully excite the antenna = two resonance mode by the function of the matching circuit. (ie, a higher-order mode), and the slit 1 1 2 is 婉蜒 51 between the first (four) region ii Q and the second conditioned region 1 1 1 ' and the slit 112 has at least one bend In order to extend the effective resonant path and current path of the antenna structure in the second resonant mode, thereby greatly reducing the operating frequency of the second resonant mode. On the other hand, the first radiation area 丄i 〇 has a first feed point 1 100 and a - junction point 1 101; the second radiation area. 1 has a second feed point 1110 and a second connection point 111 1 . The position of the second feed point 111 5 corresponds to the position of the first feed point 1 1 0 0 to facilitate the signal feed In. In other words, the wideband digital television antenna structure 1 further includes a __feeder signal line ,4, wherein the feed signal line 14 includes a center conductor 丄4 1 and an outer ground conductor 142, the center conductor 1 4 i is connected to the first feeding point i, 5 5 outer layer grounding conductor 1 4 2 is connected to the second feeding point 1 1 1 0 ° Further, the first radiating element 12 is pivotally connected to The first connecting point 1 1 〇1, and the second radiating element 13 are pivotally connected to the second connecting point 1 1 1 1 . The first radiating element 12 and the second radiating element 13 are both a rod-type dipole metal rod, so it is a structure of a dipole antenna, in other words, the first radiating element 12 and the second radiating element The 1 3 system can be excited to generate a fundamental resonance mode (first resonance mode). The purpose of the present invention is to use the matching circuit formed by the radiating surface 11 to excite the second resonant mode of the antenna structure (ie, the high-order mode), and reduce the operating frequency of the second resonant mode 201044689, you 筮-& The beauty of this At is quite one, and the operating frequency of the vibrating model is close to that of the dipole antenna bauxite (first-resonance mode). The frequency-frequency digital TV antenna structure] Yuncheng sees the _ φ5, called i戎 一 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射 辐射The antenna structure is used to adjust the "angle and position" of the upper line structure to solve the traditional planar shape. The solid-state dipole antenna has poor signal quality and is difficult to adjust.
題0 J :伋，帛：圖’其為本發明之第一實施例。在本具 ;貝施例中，純射面i i之該第—轄射區域1 1 〇與該 第二輕射區域1 i i係為成型於該基板i ◦之同一表面 的金屬結構；如第一圖所示，該狹縫1 1 2則蜿蜒形成一 種位於上述兩金屬結構之間的類似U字型之結構，且該狹 縫1 1 2係為-種等寬結構，其寬度係介於〇 3公餐至5 公釐。再者’本發明利用狹縫丄丄2的婉蜒態樣，可將第 騎區域1 1 ◦與該第二_區域1 1 1的形狀、面積 形成特定的關係’例如在本實施例中，該第一輕射區域工 1 0係為-多邊形的金屬結構，該第二_區域i玉工係 為等寬度的金屬帶結構，且第一輕射區域工i 〇的面積係 ..大於該第二輕射區域i i i的面積。但第―輕射區域1 1 ·- ◦與该第二輕射區域1 1 ;[的特徵不以上述為限，例如該 -第—-輕射區域1 1 〇可為一不規則多邊形的金屬結構，而/ 該第二輻射區域1 1 i可為不等寬度的金屬帶結構。 7 201044689 乂下以第—圖的方位架構說明該狹縫1 1 2的社 f 示’該基板1 Q係為-四邊形結構，而該狹i 1 =一端係位於該四邊形結構的一長邊，且由該狹縫 ^朝下延伸，再f折延伸以形成平行該四邊形 了之讀的結構，而後再彎折朝上延伸，以使該狹縫1 的另1鄰近於該基板1 〇的-短邊，進㈣成類似 u字形之結構的狹縫112。另外，該第—饋人點t = 0與饋人點1 1 1 ◦係對應地設於該狹縫i i 2 位於違長邊的-端；而—饋人訊號線i 4之中心導體 1係連接於該第—饋人點i i Q ◦，該饋人訊號線丄4之 外層接地導體1 42係連接於該第二饋入點1 1 i 〇。 另一方面，該第一連接·點工工〇工係鄰近於該第 Γ頂緣’該第二連接點111 1係鄰近於該 ' α A v1 1 1的頂緣，且該第一連接點1 1〇 1與 δ亥第一連接點1111係大致位於同-水平面，該第-連 接點1 1 0 1與该第二連接點i i i 1更彼此遠離，例如 分別位於基板i 〇同側的兩個角落位置；而該第一輻射元 件1 2係為一金屬材質的伸縮棒體，該第一輻射元件1 2 係可樞轉地連接於第—連接點i i Q i，同樣地，該第二 輻射元件1 3係為一金屬材質的伸縮棒體，且該第二輻： 元件1 3係可樞轉地連接於該第二連接點i i i i。換言 之，該第一輻射元件i 2係可相對於該第一連接點丄玉、^ ^進仃二維或三維旋動；該第二轄射元件i 3係可相對於 第二連接點1111進行二維或三維旋動，藉以調整第二 201044689 轄射元件1 2與第二輕射元件工3的空間角度，以改善數 位電視的訊號接收與極化條件。在本發明之實施例中，該 ^第-韓射Tt件12與該第3在—預定平面 f如平㈣基板1 Q的平面）上的張角Θ (如第四圖所示） 係介於45度至180度，以獲致較佳的收訊品質。由於本 發明之第-輕射元件i 2與該第二輻射元件丄3均可進 行三維的樞轉，當兩者位於不同的平面上，兩者的張角Θ 較不易界定’因此本發明之實施例僅界定兩者在同一平面 〇上的張角Θ，換言之，當該第-輕射元件12與該第二韓 射元件13位於同-平面上，例如平行該基板10的平面 (請參考第四圖）’該張角Θ的範圍可介於45度至⑽ 度’但不以上述為限。 明參考第一圖、第二圖以及附件一，以下將說明上述 之寬頻數位電視天線結構1的天線特性。第二圖係為該寬 頻數位電視天線結構i之返回損失（return 1。％)的測 其顯示在n VSWR的定義下產生一寬頻操作響 ^(47G至86施），而上述頻帶可涵蓋大多數區域的 廣播數位電視頻道。第三圖則為該寬頻數位電視天線結構 1的^線增益4 1與㈣效率4 2的量測曲線圖，其中天 線增益41在數位電視的接收頻段巾約在_至滿 間；而幸畐射效率4 2在數位電視的接收頻段中亦約在7〇 %以上，因此本發明之寬頻數位電視天線結構^滿足於 =電視的接收需求。附件-係為該寬頻數位電視天線結 構1#作於666 MHz的3D輕射場型量測圖，其中寬頻數 9 201044689 位電視天線結構！的最大功率值約介於2 _ i施之 間（可同時參考第三圖之該寬頻數位電視天線結構1的天 US ί )。综合上述的量測結果，該寬頻數位電視天 —可利用輻射面1 1所形成的匹配電路激發天線 了構，第—共振模態（即高階模態），並降低第二共振模 心的操作頻率’使第二共振模態的操作頻率接近於偶極天 線的基本共振模態頻率，以達成在寬頻下操作的天線結 構。 々請參考第四圖，其顯示該寬頻數位電視天線結構丄之 第輻射元件1 2與第二輻射元件1 3不同的張角態 樣。在本發明之實施例中，該第一輻射元件丄2與該第二 輻射元件1 3在一預定平面（如平行該基板1 〇的平面） 上的張角Θ係介於45度至180度’以獲致較佳的收訊品 質j本發明係將輻射面11所形成的高階模態匹配電路與 金屬棒偶極天線（即上述之第一輻射元件i 2與第二輻射 元件1 3)加以整合，而該金屬棒偶極天線可激發出基本 共振模態頻率，且將第一輻射元件i 2與第二輻射元件工 3以樞接的方式結合於該輻射面丄^上，讓使用者可任意 調整該第一輻射元件1 2與第二輻射元件1 3的空間角 度’以達成較佳的數位電視訊號的接收。 凊參考第五圖’其為本發明之第二實施例，其中該狹 縫1 1 2亦為一種類似於u字形的結構，但其蜿蜒的方向 相反於第一實施例’且狹縫1 1 2的位置接近於該基板1 〇的中間位置，而使第一輻射區域1 1 〇的面積略大於該 201044689 二區：二的面積。請參考第六圖，其為本發明 之弟二貝施例’其中，與第一實施例不同之處在於，該輪 射面1 1之狹縫1 1 2形成-種類似於w字形的 ^線，蜒的狹縫1 1 2㈣以延 /線…構在第一共振模態的有效共振路徑與電流路 徑，進而大幅降低第二共振模態的操作頻率。 Ο ❹ 因此，綜合上述實施例，該狹縫工工2的功能係在於 延長天線結構在第二共振模態的有效共振路徑與電流路 役’以大幅降低第二共振模態的操作頻率，故本發明之狹 縫1 1 2並不限於上述的態樣，例如在一變化實施例中， 該狹縫1 1 2可以是非等寬的結構。換言之，該狹縫工工 2的特徵在於’其具有至少—個彎折部’以使該狹縫工工 2所延伸的距離具有-預定的長度，而該長度可用以調整 該寬頻數位電視天線結構m振模態的操作頻率。 請參考第七圖及第八圖，該寬頻數位電視天線結構丄 更包括一外殼體2，該基板1 〇係設於該外殼體2之中， 且第-輻射元件1 2與第二輻射元件丄3則穿設於該外 殼體2而裸露於外，藉此，使用者可以方便於調整該第一 輻射元件1 2與第二輻射元件1 3的空間角度，或是袖墙 該第-轄射元件12及/或第二輕射元件13的=伸： 達成較佳的數位電視收視品質。再者，該外殼體上更設有 第一收容槽2 0與第二收容槽2 i，其用以分別收納^一 輻射元件1 2與第二輻射元件1 3。換言之，在不使用的 狀態下，該第一輻射元件1 2與第二輻射元件2 3可收容 11 201044689 於該第一收容槽2 0與第二收容槽2 1，以避免第一輻射 元件1 2與第二輻射元件1 3因碰撞而損壞。另外，該第 一收容槽2 0與該第二收容槽2 1的側壁上更佳地設有 至少一定位凸點2 2，其可用於緊密地將輻射元件1 2與 1 3分別卡合收納於收容槽2 〇與2 1之中。而如第八圖 所示，該第一收容槽2 0與該第二收容槽2 1係位於該外 殼體2的同一側面，或是該第一收容槽2 〇與該第二收容 槽2 1亦可設於該外殼體2的相對兩側面（如第七圖所 示）。 另外，該第一輻射元件12與第二輻射元件13與該 基板1 0的連接態樣可利用球軸、樞軸等各種具有樞接功 能的機構所達成，以使該第一輻射元件1 2與第二輻射元 件1 3可根據實施的應用情況進行二維或三維旋動，進而 達成較佳的收視品質與方便收納的功能。 综上所述，本發明具有下列諸項優點： 1、 本發明一種複合式的天線架構，利用介質基板與 偶極金屬棒的配合，以整合高階模態匹配電路與 拉桿式偶極金屬棒，降低被激發的高階模態之操 作頻率，使其接近於拉桿式偶極金屬棒的基本共 振杈態，以達成寬頻數位電視接收天線。 2、 本發明之寬頻數位電視天線結構的架構簡單，使 其具有輕巧的特性，且可任意調整拉桿式偶極金 屬棒的空間位置、相對角度，以達到較佳的訊號 接收與極化；另外，該拉桿式偶極金屬 201044689 納於外殼體的收容槽中，更使該天線易於攜帶。 准以上所述僅為本發明之較佳實施例，非意欲揭限 ..=專=保護範圍，故舉凡運用本發明 .二=化，均同理皆包含於本發明之權利保護範 【圖式簡單說明】 =圖與第—A _為本發明之第—實施例之寬頻數位 0 電視天線結構的示意圖。 、 第二圖係為本料之寬賴位電視天線結狀返 (return l〇ss)的測試圖。 、天 弟二圖係本發明之寬賴位f視天I 輻射效率的量測曲線圖。 ”天綠曰皿與 第四圖係為第一輻射元件盥 的示意圖。 午弟一軲射疋件呈現不同張角 第五圖係為本發明之第-垂 ◎構的示意圖。之弟一A例之寬頻數位電視天線結 第六圖係為本發明之第二奋 構的示意圖。之第一A例之寬頻數位電視天線結 第七圖與第八圖係為本 設於外殼财^⑼ 讀數"視天線結構裝 13 201044689 【主要元件符號說明】 1 見頻數位電視天線結構 10 基板Title 0 J: 汲, 帛: Fig. ' is a first embodiment of the present invention. In the present embodiment, the first-firing region 1 1 〇 of the pure surface ii and the second light-emitting region 1 ii are metal structures formed on the same surface of the substrate i ;; As shown in the figure, the slit 1 1 2 forms a U-shaped structure between the two metal structures, and the slit 11 2 is a uniform structure with a width between 〇3 meals to 5 mm. Furthermore, the present invention can form a specific relationship between the riding area 1 1 ◦ and the shape and area of the second_region 1 1 1 by using the squatting state of the slit 丄丄 2, for example, in the present embodiment, The first light-emitting area 10 is a polygonal metal structure, and the second area i is an equal-width metal strip structure, and the area of the first light-emitting area is greater than The area of the second light-emitting area iii. However, the first light-lighting area 1 1 ·- ◦ and the second light-emitting area 1 1 ; [the characteristics are not limited to the above, for example, the - - - light-light area 1 1 〇 may be an irregular polygonal metal Structure, and / the second radiating region 1 1 i may be a metal strip structure of unequal width. 7 201044689 The following description of the orientation of the first embodiment shows that the slit 1 1 2 shows that the substrate 1 Q is a quadrilateral structure, and the narrow i 1 = one end is located on one long side of the quadrilateral structure. And extending from the slit ^ downward, and then f-folding to form a structure parallel to the quadrilateral reading, and then bending upward to extend upward, so that the other 1 of the slit 1 is adjacent to the substrate 1 - The short side, the (four) into the slit 112 of a U-shaped structure. In addition, the first feeding point t = 0 is corresponding to the feeding point 1 1 1 , and the slit ii 2 is located at the end of the long side; and the center conductor 1 of the feeding signal line i 4 is Connected to the first feed point ii Q ◦, the feed signal line 之外4 outer layer ground conductor 1 42 is connected to the second feed point 1 1 i 〇. In another aspect, the first connection point worker is adjacent to the top edge 'the second connection point 111 1 is adjacent to the top edge of the 'α A v1 1 1 , and the first connection point 1 1〇1 and δHai first connection point 1111 are substantially in the same-horizontal plane, and the first connection point 1 1 0 1 and the second connection point iii 1 are further away from each other, for example, two on the same side of the substrate i 〇 a corner position; and the first radiating element 12 is a metal telescopic rod body, the first radiating element 12 is pivotally connected to the first connecting point ii Q i , and likewise, the second The radiating element 13 is a metal telescopic rod body, and the second spoke: the element 13 is pivotally connected to the second connecting point iiii. In other words, the first radiating element i 2 can be rotated in two or three dimensions with respect to the first connecting point, and the second radiating element i 3 can be made relative to the second connecting point 1111. The two-dimensional or three-dimensional rotation is used to adjust the spatial angle of the second 201044689 modulating element 12 and the second light-emitting component 3 to improve the signal receiving and polarization conditions of the digital television. In the embodiment of the present invention, the opening angle of the ^-Han TT member 12 and the third in-predetermined plane f such as the plane of the flat (four) substrate 1 Q (as shown in the fourth figure) is 45 degrees to 180 degrees for better reception quality. Since the first-light element i 2 and the second radiating element 丄3 of the present invention can both pivot three-dimensionally, when the two are located on different planes, the angle Θ of the two is less difficult to define 'therefore the implementation of the present invention The example only defines the opening angles of the two on the same plane, in other words, when the first-light element 12 and the second element 36 are in the same plane, for example parallel to the plane of the substrate 10 (please refer to the fourth Figure) 'The angle of the corner can range from 45 degrees to (10 degrees'' but not limited to the above. Referring to the first, second, and annexes 1, the antenna characteristics of the above-described wideband digital television antenna structure 1 will be described below. The second figure shows the return loss (return 1%) of the broadband digital TV antenna structure i. It shows that a broadband operation sound (47G to 86) is generated under the definition of n VSWR, and the above frequency band can cover a large Broadcast digital TV channels in most areas. The third graph is a measurement curve of the line gain 4 1 and the (4) efficiency 4 2 of the broadband digital television antenna structure 1, wherein the antenna gain 41 is in the receiving band of the digital television, and is about _ to full; The shooting efficiency 42 is also about 7〇% in the receiving frequency band of the digital television. Therefore, the broadband digital television antenna structure of the present invention satisfies the reception requirement of the television. Attachment - This is a wide-band digital TV antenna structure 1# for 666 MHz 3D light field type measurement, in which the wide frequency 9 201044689 TV antenna structure! The maximum power value is between 2 _ i (refer to the day US ί of the broadband digital TV antenna structure 1 in the third figure). Combining the above measurement results, the broadband digital television day - the matching circuit formed by the radiation surface 11 can be used to excite the antenna structure, the first resonance mode (ie, the high-order mode), and reduce the operation of the second resonance mode core. The frequency 'closes the operating frequency of the second resonant mode close to the fundamental resonant mode frequency of the dipole antenna to achieve an antenna structure that operates at a wide frequency. Please refer to the fourth figure, which shows the different angular angles of the radiating element 12 and the second radiating element 13 of the broadband digital television antenna structure. In an embodiment of the invention, the first radiating element 丄2 and the second radiating element 13 are at an angle of 45 degrees to 180 degrees on a predetermined plane (e.g., parallel to the plane of the substrate 1 '). In order to achieve better reception quality, the present invention integrates the high-order modal matching circuit formed by the radiating surface 11 with the metal rod dipole antenna (i.e., the first radiating element i 2 and the second radiating element 13 described above). The metal rod dipole antenna can excite the fundamental resonant mode frequency, and the first radiating element i 2 and the second radiating element 3 are pivotally coupled to the radiating surface, so that the user can The spatial angle ' of the first radiating element 12 and the second radiating element 13 is arbitrarily adjusted to achieve better reception of the digital television signal. Referring to the fifth figure, which is a second embodiment of the present invention, the slit 112 is also a U-shaped structure, but its direction is opposite to that of the first embodiment' and the slit 1 The position of 1 2 is close to the intermediate position of the substrate 1 ,, and the area of the first radiation area 1 1 〇 is slightly larger than the area of the 201044689 second area: two. Please refer to the sixth figure, which is the second embodiment of the present invention. The difference from the first embodiment is that the slit 1 1 2 of the wheel surface 11 is formed like a w-shaped ^ The line, the slit of the crucible 1 1 2 (four) is the effective resonant path and the current path of the first resonant mode in the extension/line, thereby greatly reducing the operating frequency of the second resonant mode. ❹ ❹ Therefore, in combination with the above embodiment, the function of the slit worker 2 is to extend the effective resonant path and current commutation of the antenna structure in the second resonant mode to greatly reduce the operating frequency of the second resonant mode. The slit 1 1 2 of the present invention is not limited to the above-described aspect, and for example, in a variant embodiment, the slit 112 may be a non-equal width structure. In other words, the slit worker 2 is characterized in that it has at least one bent portion such that the distance extended by the slit worker 2 has a predetermined length, and the length can be used to adjust the broadband digital television antenna. The operating frequency of the m-mode of the structure. Referring to the seventh and eighth figures, the broadband digital television antenna structure further includes an outer casing 2, the substrate 1 is disposed in the outer casing 2, and the first radiating element 12 and the second radiating element The 丄3 is worn on the outer casing 2 and exposed to the outside, whereby the user can conveniently adjust the spatial angle of the first radiating element 12 and the second radiating element 13 or the sleeve wall. The extension of the imaging element 12 and/or the second light-emitting element 13 is achieved by achieving better digital television viewing quality. Furthermore, the outer casing is further provided with a first receiving groove 20 and a second receiving groove 2 i for respectively accommodating the radiating element 1 2 and the second radiating element 13 . In other words, in the unused state, the first radiating element 1 2 and the second radiating element 2 3 can accommodate 11 201044689 in the first receiving slot 20 and the second receiving slot 2 1 to avoid the first radiating element 1 2 and the second radiating element 13 are damaged by the collision. In addition, the first receiving groove 20 and the side wall of the second receiving groove 21 are better provided with at least one positioning bump 22, which can be used for closely engaging the radiating elements 1 2 and 1 3 respectively. In the storage tank 2 〇 and 2 1 . As shown in FIG. 8 , the first receiving slot 20 and the second receiving slot 21 are located on the same side of the outer casing 2 or the first receiving slot 2 and the second receiving slot 2 1 . It can also be disposed on opposite sides of the outer casing 2 (as shown in the seventh figure). In addition, the connection manner of the first radiating element 12 and the second radiating element 13 and the substrate 10 can be achieved by various mechanisms having a pivoting function such as a ball shaft and a pivot, so that the first radiating element 1 2 The second radiating element 13 can be rotated in two or three dimensions according to the applied application, thereby achieving better viewing quality and convenient storage. In summary, the present invention has the following advantages: 1. The composite antenna structure of the present invention utilizes the cooperation of the dielectric substrate and the dipole metal rod to integrate the high-order modal matching circuit and the pull-rod dipole metal rod. The operating frequency of the excited higher-order mode is reduced to be close to the fundamental resonant state of the rod-type dipole metal rod to achieve a broadband digital television receiving antenna. 2. The wide-band digital TV antenna structure of the present invention has a simple structure, which has the characteristics of light weight, and can adjust the spatial position and relative angle of the rod-type dipole metal rod arbitrarily to achieve better signal receiving and polarization; The pull rod type dipole metal 201044689 is accommodated in the receiving groove of the outer casing, which makes the antenna easy to carry. The above description is only a preferred embodiment of the present invention, and it is not intended to disclose the limitation of the invention. The specific scope of the invention is the same as that of the present invention. Brief Description of the Drawings] = Figure and -A _ are schematic diagrams of the structure of the wideband digital 0 TV antenna of the first embodiment of the present invention. The second picture is a test chart of the return l〇ss of the TV antenna of the material. The second figure of the present invention is a measurement curve of the radiation efficiency of the wide-lying position of the present invention. The sky green dish and the fourth picture are schematic diagrams of the first radiating element 。. The afternoon picture shows the different angles. The fifth picture is the schematic diagram of the first-down structure of the invention. The sixth figure of the broadband digital television antenna junction is a schematic diagram of the second striking structure of the present invention. The seventh and eighth pictures of the broadband audio TV antenna of the first example A are based on the outer casing (^) reading " ;View antenna structure assembly 13 201044689 [Main component symbol description] 1 See frequency digital TV antenna structure 10 substrate
22 022 0
Θ 輻射面 110 110 0 110 1 111 1110 1111 112 第一輻射元件 第二輻射元件 饋入訊號線 14114 2 外殼體 第一收容槽 第二收容槽 定位凸點 張角 第一輻射區域 第一饋入點 第一連接點 第二輻射區域 第二饋入點 第二連接點 狹縫 中心導體 外層接地導體 14辐射 radiating surface 110 110 0 110 1 111 1110 1111 112 first radiating element second radiating element feeding signal line 14114 2 outer casing first receiving groove second receiving groove positioning bump opening angle first radiation area first feeding point a connection point second radiation area second feed point second connection point slit center conductor outer layer ground conductor 14