TWI239676B - Antenna for receiving the digital television signals - Google Patents
Antenna for receiving the digital television signals Download PDFInfo
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- TWI239676B TWI239676B TW93117083A TW93117083A TWI239676B TW I239676 B TWI239676 B TW I239676B TW 93117083 A TW93117083 A TW 93117083A TW 93117083 A TW93117083 A TW 93117083A TW I239676 B TWI239676 B TW I239676B
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1239676 五、發明說明（1) 【發明所屬之技術領域】 本發明係關於一種數位電視接收天線，特別是應用在 筆記型電腦或行動式通訊產品中。 【先前技術】 隨著無線通訊的發展，數位化產品之應用亦越來越廣 泛，因此天線的性能便成為影響產品價值的重要關鍵之一 。數位電視是將電視訊號由’，類比訊號”轉換為”數位訊號” 的電視系統，而目前數位電視地面廣播大致有三套系統， 分別為·美國的 ATSC(Advanced Television Systems Committee)、日本的 ISDB-T(Terrestrial Integrated Services Digital Broadcasting)、及歐洲的 DVB-T (Digital Video Broadcasting-Terrestrial)。台灣於民 國8 6年3月3 1日由交通部宣佈採用美規系統，而從9 〇年6月 起改制採用歐洲的DVB-T系統，因為該系統之調變（c〇FDM) 標準信號能有效地解決多重路徑（anti-mul七丨口以^^干擾的 問題’同時歐規系統可以構成單頻廣播網（STN )，對收視 不良之地區建立改善收視轉播站，且歐規系統具有行動接 收（mobile reception)之特色，而現今數位電視頻道不再 侷限於電視節目之傳輸，更提供了數據廣播（Data1239676 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a digital television receiving antenna, especially applied to a notebook computer or a mobile communication product. [Previous technology] With the development of wireless communication, the application of digital products has become more and more widespread, so the performance of antennas has become one of the important keys that affect the value of products. Digital television is a television system that converts television signals from ', analog signals' to 'digital signals'. At present, there are roughly three systems of digital television terrestrial broadcasting, namely: ATSC (Advanced Television Systems Committee) in the United States and ISDB-Japan T (Terrestrial Integrated Services Digital Broadcasting) and European DVB-T (Digital Video Broadcasting-Terrestrial). Taiwan was announced on March 31, 1986 by the Ministry of Transport to adopt the US regulatory system, and from June 1990 The restructuring adopted the European DVB-T system, because the system's modulated (coFDM) standard signals can effectively solve the problem of multiple paths (anti-mul VII and ^^ interference problems). At the same time, the European regulatory system can form a single unit. Frequency broadcast network (STN), to establish improved viewing and broadcasting stations in areas with poor viewing, and the European regulatory system has the characteristics of mobile reception, and today digital TV channels are no longer limited to the transmission of TV programs, but also provide data Broadcast
Broadcasting)等服務。台灣專利公告第521，4 5 5號，，數位 電視之平面縮小化天線”，其揭示一種利用縮小化天線以 接收數位電視訊號的例子，不過該天線雖可接收數位電視 系統’但體積過大，使得天線無法内建於產品中而與系統Broadcasting) and other services. "Taiwan Patent Bulletin No. 521, 455," Planarized Miniaturized Antenna for Digital TV ", which discloses an example of using a reduced antenna to receive digital TV signals. However, although the antenna can receive digital TV systems, it is too large. The antenna cannot be built into the product and interacts with the system
1239676 五、發明說明（2) 相整合，其運用上之方便性較低。為解決此一問題，我們 提出一種數位電視接收天線的創新設計，不僅可產生一操 作頻寬涵蓋位於UHF頻帶（ 4 7 0 - 8 0 6 MHz)之數位電視頻道， 同時本發明天線可輕易地内建於筆記型電腦或其他行動式 通訊產品中，達成内藏式天線設計之優點。 【發明内容】 如上所述，本發明之目的在於提供一種數位電視接收 天線的創新設計，不僅可產生一操作頻寬涵蓋位於UHF頻 帶（ 4 7 0 -8 0 6 MHz)之數位電視頻道，同時本發明天線可輕 易地内建於筆記型電腦或其他行動式通訊產品中，達成内 藏式天線設計之優點。本發明天線包含：一第一（系統）接 地面，其形狀大致為一矩形，而在該第一接地面之一上方 邊緣，具有一大致為矩形之缺口，而該缺口之一長邊大致 平行於該第一接地面之該上方邊緣，而該缺口之一短邊大 致垂直於該第一接地面之該上方邊緣；一第二（天線）接地 面，其形狀大致為一矩形，且該第二接地面之一長邊平行 並電氣連接至於該第一接地面之該上方邊緣，而該第二接 地面之一短邊大致切齊該第一接地面之該缺口之該短邊， 且該第二接地面包含一接地點；一輻射金屬片，其形狀大 致為一矩形，而該輻射金屬片大致位於該第一接地面之該 缺口上方，且該輻射金屬片之一長邊大致平行於該第一接 地面之上方邊緣，而該輻射金屬片之一短邊大致平行於該 第二接地面之該短邊，且該輻射金屬片包含一饋入點；及1239676 V. Description of the invention (2) Integration, its convenience in use is low. In order to solve this problem, we propose an innovative design of a digital television receiving antenna, which can not only generate a digital television channel with an operating bandwidth covering the UHF band (470-800 MHz). At the same time, the antenna of the present invention can easily Built into a notebook computer or other mobile communication product to achieve the benefits of a built-in antenna design. [Summary of the Invention] As mentioned above, the object of the present invention is to provide an innovative design of a digital television receiving antenna, which can not only generate a digital television channel with an operating bandwidth covering the UHF band (470-800), but also The antenna of the present invention can be easily built into a notebook computer or other mobile communication products to achieve the advantages of a built-in antenna design. The antenna of the present invention includes: a first (system) ground plane having a substantially rectangular shape, and an upper edge of one of the first ground planes having a substantially rectangular notch, and a long side of the notch being substantially parallel At the upper edge of the first ground plane, and a short side of the notch is approximately perpendicular to the upper edge of the first ground plane; a second (antenna) ground plane having a substantially rectangular shape, and the first A long side of one of the two ground planes is parallel and electrically connected to the upper edge of the first ground plane, and a short side of the second ground plane is approximately aligned with the short side of the notch of the first ground plane, and the The second ground plane includes a ground point; a radiating metal sheet having a substantially rectangular shape, and the radiating metal sheet is generally located above the notch of the first ground plane, and a long side of the radiating metal sheet is substantially parallel to An upper edge of the first ground plane, and a short side of the radiating metal sheet is substantially parallel to the short side of the second ground plane, and the radiating metal sheet includes a feeding point; and
第12頁 1239676 五、發明說明（3) 一饋入同軸傳輸線，用以傳輸訊號，包含：一中心導線， 連接至該輻射金屬片之該饋入點；及一外層接地導體，連 接至該第二接地面之該接地點。 在本項設計中，我們可以藉由調整該輻射金屬片之長 度介於該天線之中心操作頻率之1 / 4〜1 / 8波長之間，而得 到適當的中心操作頻帶；以及藉由調整該輻射金屬片之寬 度（一般大於5 mm )，而得到適當的操作頻寬；並藉由調整 該第一接地面之該缺口之該長邊與該輻射金屬片之距離 (t)(一般大於5 mm )，而得到良好的匹配。透過以上之設 計，即可產生一操作頻寬涵蓋位於UHF頻帶（ 4 7 0 - 8 0 6 MHz) 之數位電視頻道，同時本發明天線可輕易地内建於筆記型 電腦或其他行動式通訊產品中，達成内藏式天線設計之優 點。 【實施方式】 參考第1圖，本發明之天線一實施例1包括：一第一 (系統）接地面或筆記型電腦液晶螢幕（LCD)之支撐金屬背 板或行動式電視（m 〇 b i 1 e T V s e t)液晶螢幕之支撐金屬背 板1 3，其形狀大致為一矩形，而在該第一接地面1 3之一上 方邊緣131，具有一大致為矩形之缺口 132，而該缺口之一 長邊1 3 3大致平行於該第一接地面1 3之該上方邊緣1 3 1，而 該缺口 1 3 2之一短邊1 3 4大致垂直於該第一接地面1 3之該上 方邊緣1 3 1 ; —第二（天線）接地面1 4，其形狀大致為一矩 形，且該第二接地面1 4之一長邊1 4 1平行並電氣連接至該Page 12 1239676 V. Description of the invention (3) A coaxial transmission line for transmitting signals includes: a center wire connected to the feeding point of the radiating metal sheet; and an outer ground conductor connected to the first The ground point of the two ground planes. In this design, we can obtain the appropriate center operating frequency band by adjusting the length of the radiating metal sheet to be between 1/4 to 1/8 wavelength of the center operating frequency of the antenna; and by adjusting the The width of the radiating metal sheet (generally greater than 5 mm) to obtain an appropriate operating bandwidth; and by adjusting the distance (t) between the long side of the notch of the first ground plane and the radiating metal sheet (generally greater than 5) mm) and get a good match. Through the above design, a digital TV channel with an operating bandwidth covering the UHF band (470-800 MHz) can be generated. At the same time, the antenna of the present invention can be easily built into a notebook computer or other mobile communication products. In order to achieve the advantages of built-in antenna design. [Embodiment] Referring to FIG. 1, an embodiment 1 of the antenna of the present invention includes: a first (system) ground plane or a supporting metal back plate of a notebook computer liquid crystal screen (LCD) or a mobile television (m 0 1) e TV set) The supporting metal back plate 1 3 of the LCD screen is approximately rectangular in shape, and an edge 131 above one of the first ground planes 13 has a substantially rectangular notch 132 and one of the notches The long side 1 3 3 is substantially parallel to the upper edge 1 3 1 of the first ground plane 13 and one of the short sides 1 3 4 of the notch 1 3 2 is approximately perpendicular to the upper edge of the first ground plane 13 1 3 1; —The second (antenna) ground plane 1 4 has a substantially rectangular shape, and one of the long sides 1 4 1 of the second ground plane 14 is parallel and electrically connected to the
第13頁 1239676 五、發明說明（4) 第z接地面1 3之該上方邊緣1 3 1，而該第二接地面1 4之一 拉邊1 4 2大致切齊該第一接地面1 3之該缺口 1 3 2之該短邊 j 3 4，且該第二接地面1 4包含〆接地點1 4 3 ; 一輻射金屬片 1 5，其形狀大致為一矩形，而該輻射金屬片1 5大致位於該 第，接地面1 3之該缺口 1 3 2上方，且該輻射金屬片1 5之一 長邊1 5 1大致平行於該第一接地面1 3之上方邊緣1 3 1，而該 輯射金屬片1 5之一短邊1 5 2大致平行於該第二接地面1 4之 該短邊1 4 2，且該輕射金屬片1 5包含一饋入點1 5 3 ;及一饋 入同軸傳輸線1 6，用以傳輸訊號，包含：一中心導線1 6 1 ，連接至該輻射金屬片丨5之該饋入點1 5 3 ;及一外層接地 導體1 6 2，連接至該第二接地面i 4之該接地點1 4 3。在本實 施例1中，該輻射金屬片1 5及該第二接地面1 4由蝕刻或印 刷技術形成於一介質基板上。 第2圖是本發明天線一實施例1的返回損失實驗量測結 果；在實施例1中’為模擬筆記型電腦液晶螢幕（LCD)之支 撐金屬背板或行動式電視（mobile tv set)液晶螢幕之支 撐金屬背板之環境，我們選擇該第一接地面丨3其長度約為 2 6 0 mm、寬度約為2 0 0 mm;而該第一接地面13之該缺口 132之該長邊133約為11〇 mm、該短邊134約為2〇 而該 第二接地面14長度約為30 mm、寬度約為丨〇 mm ;而該輻射 金屬片15其長度約為1〇〇 mm、寬度約為1〇 而該輻射 金屬片15之該短邊152與該該第二接地面“之該短邊142之 距離u)約為i麗：而該第一接地面13之該缺口 132之該長 邊133與該輕射金屬片15之距離（t)約為20 mm。由實驗結Page 13 1239676 V. Description of the invention (4) The upper edge 1 3 1 of the z-th ground plane 1 3, and one of the second ground planes 1 4 has a pull-out edge 1 4 2 approximately aligning the first ground plane 1 3 The short side j 3 4 of the notch 1 3 2, and the second ground plane 14 includes a plutonium ground point 1 4 3; a radiating metal sheet 15 having a substantially rectangular shape, and the radiating metal sheet 1 5 is generally located above the notch 1 3 2 of the first, ground plane 1 3, and one of the long sides 1 5 1 of the radiating metal sheet 15 is approximately parallel to the upper edge 1 3 1 of the first ground plane 13, and A short side 1 5 2 of the shooting metal sheet 15 is substantially parallel to the short side 1 4 2 of the second ground plane 14 and the light shooting metal sheet 15 includes a feed point 1 5 3; and A feed coaxial transmission line 16 for transmitting signals includes: a center wire 16 1 connected to the feed point 1 5 3 of the radiating metal sheet 5; and an outer ground conductor 16 2 connected to The ground points 1 4 3 of the second ground plane i 4. In this embodiment 1, the radiating metal sheet 15 and the second ground plane 14 are formed on a dielectric substrate by an etching or printing technique. Figure 2 is the measurement result of the return loss experiment of the antenna according to the first embodiment of the present invention; in the first embodiment, it is a supporting metal back plate or a mobile tv set liquid crystal of a liquid crystal screen (LCD) of a notebook computer. The environment of the screen supporting the metal back plate, we choose the first ground plane 3, which has a length of about 260 mm and a width of about 200 mm; and the long side of the notch 132 of the first ground plane 13 133 is about 110 mm, the short side 134 is about 20, and the second ground plane 14 is about 30 mm in length and about 10 mm in width; and the radiating metal sheet 15 is about 100 mm in length, The width is about 10, and the distance u) between the short side 152 of the radiating metal sheet 15 and the second ground plane "the short side 142" is about iris: and the gap 132 of the first ground plane 13 The distance (t) between the long side 133 and the light-emitting metal sheet 15 is about 20 mm.
1239676 五、發明說明（5) 果得知，在電壓駐波比3 : 1的定義下，本發明天線具有一 操作頻寬21，可以輕易地涵蓋位於UHF頻帶（ 4 7 0 -8 0 6 MHz) 之數位電視頻道。 第3圖為本發明天線一實施例1在X - z、y - z平面（垂直 面）及X - y平面（水平面；假設地面平行於X - y平面）於 6 3 8 Μ Η z的天線輻射場型量測結果。由量測結果可知，本 發明天線在X - y平面（水平面）產生大致為全向性輻射之 場型，滿足數位電視接收天線之操作需求。 第4圖為本發明天線之其他實施例結構圖。本實施例4 包括：一^第一（系統）接地面或筆記型電腦液晶榮幕（LCD) 之支撐金屬背板或行動式電視（mobi le TV set)液晶螢幕 之支撐金屬背板4 3，其形狀大致為一矩形，而在該第一接 地面43之一上方邊緣431，具有一大致為矩形之缺口 432， 而該缺口之^一長邊43 3大致平行於該第一接地面4 3之々上 方邊緣431，而該缺口 43 2之一短邊43 4大致垂直於該第一 接地面43之該上方邊緣431 ; 一第二（天線）接地面44，其 形狀大致為一矩形，且該第二接地面44之一長邊441平行 並電氣連接至該第一接地面4 3之該上方邊緣4 3 1 ’而該第 二接地面44之一短邊442大致切齊該第一接地面43之該缺 口 4 3 2之該短邊4 3 4，且該第二接地面4 4包含一接地點4 4 3 ;一彎折之輻射金屬片45，其長度介於該天線之中心操作 頻率之1/4〜1/8波長之間，且該彎折之輻射金屬片45大致 位於該第一接地面4 3之該缺口 4 3 2上方’而該彎折之韓射 金屬^ 45之一長邊451大致平行於該第一接地面43之上方1239676 V. Description of the invention (5) It is learned that under the definition of voltage standing wave ratio 3: 1, the antenna of the present invention has an operating bandwidth 21, which can easily cover the UHF band (4 7 0 -8 0 6 MHz ) Digital TV channels. Figure 3 shows an antenna according to a first embodiment of the present invention in the X-z, y-z plane (vertical plane) and X-y plane (horizontal plane; assuming that the ground is parallel to the X-y plane) at 6 3 8 Μ Η z Radiation field type measurement results. It can be known from the measurement results that the antenna of the present invention generates a field pattern of approximately omnidirectional radiation in the X-y plane (horizontal plane), which meets the operation requirements of a digital television receiving antenna. FIG. 4 is a structural diagram of another embodiment of the antenna of the present invention. This embodiment 4 includes: a support metal back plate of a first (system) ground plane or a liquid crystal screen (LCD) of a notebook computer or a support metal back plate 4 of a liquid crystal screen of a mobile TV (mobi le TV set), Its shape is substantially rectangular, and an upper edge 431 of one of the first ground planes 43 has a substantially rectangular notch 432, and a long side 43 of the notch is approximately parallel to the first ground plane 4 3 The upper edge 431 of the notch 43 2 and a short side 43 4 of the notch 43 2 are substantially perpendicular to the upper edge 431 of the first ground plane 43; a second (antenna) ground plane 44 having a substantially rectangular shape, and A long side 441 of the second ground plane 44 is parallel and electrically connected to the upper edge 4 3 1 ′ of the first ground plane 43 and a short side 442 of the second ground plane 44 is substantially aligned with the first junction. The notch 4 3 2 of the ground 43, the short side 4 3 4, and the second ground plane 4 4 includes a ground point 4 4 3; a bent radiating metal sheet 45 whose length is located between the center of the antenna operation The frequency is between 1/4 to 1/8 wavelength, and the bent radiating metal sheet 45 is roughly located on the first ground plane 4 3 of the notch 4 3 2 above ’and one of the bended Korean shot metal ^ 45 one long side 451 is substantially parallel to above the first ground plane 43
1239676 五、發明說明（6) -----— 邊緣431，且該彎折之輻射金屬片45沿著其長邊451之方向 具有一次彎折，使得該彎折之輻射金屬片4 5之截面大致為 一 L形，而該彎折之輻射金屬片45之一短邊452大致平行於 該第二接地面44之該短邊442,且該彎折之輻射金屬片45 包含一饋入點453;及一饋入同輛傳輸線46,用以傳輸訊 號，包含：一中心導線461，連接至該彎折之輻射金屬片 45之該饋入點453;及一外層接地導體46 2，連接至該第二 接地面44之該接地點443。在本實施例4中，該第一接地面 43及該第二接地面44由單一金屬片沖壓（stamping)或切割 (cutting)製作而成。 第5圖為本發明天線之其他實施例結構圖。本實施例5 包括：一第一（系統）接地面或筆記型電腦液晶螢幕（lcd) 之支撐金屬背板或行動式電視（m〇bi le tv set)液晶螢幕 之支撐金屬背板5 3，其形狀大致為一矩形，而在該第一接 地面5 3之一上方邊緣531，具有一大致為矩形之缺口 532， 而該缺口之一長邊53 3大致平行於該第一接地面53之該上 方邊緣531，而該缺口 53 2之一短邊53 4大致垂直於該第一 接地面5 3之該上方邊緣5 3 1 ; —第二（天線）接地面5 4，其 形狀大致為一矩形，且該第二接地面5 4之一長邊5 4 1平行 並電氣連接至該第一接地面5 3之該上方邊緣5 3 1，而該第 二接地面5 4之一短邊5 4 2大致切齊該第一接地面5 3之該缺 口 5 3 2之該短邊5 3 4，且該第二接地面5 4包含〆接地點$ 4 3 ;一彎折之輻射金屬片5 5，其長度介於該天線之中心操作 頻率之1 / 4〜1 / 8波長之間，且該彎折之輕射金屬片5 5大致1239676 V. Description of the invention (6) ------ edge 431, and the bent radiation metal sheet 45 has a bend along the direction of its long side 451, so that the bent radiation metal sheet 45 The cross section is generally L-shaped, and a short side 452 of the bent radiating metal sheet 45 is substantially parallel to the short side 442 of the second ground plane 44, and the bent radiating metal sheet 45 includes a feed point 453; and a transmission line 46 feeding the same vehicle for transmitting signals, including: a center wire 461 connected to the feeding point 453 of the bent radiation metal sheet 45; and an outer ground conductor 46 2 connected to The ground point 443 of the second ground plane 44. In the fourth embodiment, the first ground plane 43 and the second ground plane 44 are made by stamping or cutting of a single metal sheet. FIG. 5 is a structural diagram of another embodiment of the antenna of the present invention. This embodiment 5 includes: a first (system) ground plane or a supporting metal back plate of a liquid crystal display (lcd) of a notebook computer or a supporting metal back plate 5 of an LCD screen of a mobile TV set, Its shape is substantially rectangular, and an upper edge 531 of one of the first ground planes 53 has a substantially rectangular notch 532, and a long side 53 of the notch is approximately parallel to the first ground plane 53. The upper edge 531, and one of the short sides 53 4 of the notch 53 2 is substantially perpendicular to the upper edge 5 3 1 of the first ground plane 5 3; the second (antenna) ground plane 5 4 has a shape of approximately one Rectangular, and one long side 5 4 1 of the second ground plane 5 4 is parallel and electrically connected to the upper edge 5 3 1 of the first ground plane 5 3, and one short side 5 of the second ground plane 5 4 4 2 roughly cuts the notch 5 3 of the first ground plane 5 3 and the short side 5 3 4 of the 2 and the second ground plane 5 4 includes a plutonium ground point $ 4 3; a bent radiating metal sheet 5 5, its length is between 1/4 to 1/8 wavelength of the center operating frequency of the antenna, and the bent light-emitting metal sheet 5 5 is roughly
1239676 五、發明說明（7) 位於該第一接地面5 3之該缺口 5 3 2上方，而該彎折之輻射 金屬片5 5之一長邊551大致平行於該第一接地面5 3之上方 邊緣5 3 1，且該彎折之輻射金屬片5 5沿著其長邊5 5 1、5 5 2 之方向具有兩次彎折，使得該彎折之輻射金屬片5 5之截面 大致為一门形，而該彎折之輻射金屬片5 5之一短邊5 5 2大 致平行於該第二接地面5 4之該短邊5 4 2，且該彎折之輻射 金屬片55包含一饋入點553;及一饋入同軸傳輸線56，用 以傳輸訊號，包含：一中心導線5 6 1，連接至該彎折之輻 射金屬片5 5之該饋入點5 5 3 ;及一外層接地導體5 6 2，連接 至該第二接地面5 4之該接地點5 4 3。 第6圖為本發明天線之其他實施例結構圖。本實施例6 包括：一第一（系統）接地面或筆記型電腦液晶榮幕（LCD) 之支撐金屬背板或行動式電視（mobile TV set)液晶螢幕 之支撐金屬背板6 3，其形狀大致為一矩形，而在該第一接 地面63之一上方邊緣631，具有一大致為矩形之缺口 632， 而該缺口之一長邊63 3大致平行於該第一接地面6 3之該上 方邊緣631，而該缺口 63 2之一短邊63 4大致垂直於該第一 接地面6 3之該上方邊緣6 3 1 ; —第二（天線）接地面6 4，其 形狀大致為一矩形，且該第二接地面6 4之一長邊6 4 1平行 並電氣連接至該第一接地面6 3之該上方邊緣6 3 1，而該第 二接地面6 4之一短邊6 4 2大致切齊該第一接地面6 3之該缺 口 6 3 2之該短邊6 3 4，且該第二接地面6 4包含一接地點6 4 3 ;一彎折之輻射金屬片6 5，其長度介於該天線之中心操作 頻率之1 / 4〜1 / 8波長之間，且該彎折之輻射金屬片6 5大致1239676 V. Description of the invention (7) Located above the notch 5 3 2 of the first ground plane 5 3, and one long side 551 of the bent radiation metal sheet 5 5 is substantially parallel to the first ground plane 5 3 The upper edge 5 3 1 and the bent radiating metal sheet 5 5 have two bends along the long sides 5 5 1 and 5 5 2 so that the cross section of the bent radiating metal sheet 5 5 is approximately It is a gate shape, and one short side 5 5 2 of the bent radiating metal sheet 55 is substantially parallel to the short side 5 4 2 of the second ground plane 54, and the bent radiating metal sheet 55 includes a A feed point 553; and a feed coaxial transmission line 56 for transmitting a signal, including: a center wire 5 6 1 connected to the feed point 5 5 3 of the bent radiating metal sheet 5 5; and an outer layer The ground conductor 5 6 2 is connected to the ground point 5 4 3 of the second ground plane 5 4. FIG. 6 is a structural diagram of another embodiment of the antenna of the present invention. This embodiment 6 includes: a first (system) ground plane or a supporting metal back plate of a liquid crystal screen (LCD) of a notebook computer or a supporting metal back plate 63 of a liquid crystal screen of a mobile TV set, and its shape A substantially rectangular shape, and an upper edge 631 of one of the first ground planes 63 has a substantially rectangular notch 632, and a long side 63 of the notch is approximately parallel to the upper side of the first ground plane 63. Edge 631, and one of the short sides 63 4 of the notch 63 2 is approximately perpendicular to the upper edge 6 3 1 of the first ground plane 6 3; the second (antenna) ground plane 6 4 is approximately rectangular in shape, And one long side 6 4 1 of the second ground plane 6 4 is parallel and electrically connected to the upper edge 6 3 1 of the first ground plane 6 3 and one short side 6 4 2 of the second ground plane 6 4 Roughly cut the short side 6 3 4 of the notch 6 3 2 of the first ground plane 6 3, and the second ground plane 6 4 includes a ground point 6 4 3; a bent radiating metal sheet 65, Its length is between 1/4 to 1/8 wavelength of the center operating frequency of the antenna, and the bent radiating metal sheet 6 5 is roughly
第17頁 1239676 五、發明說明（8) 位於該第一接地6 3之該缺口 6 3 2上方，而該彎折之輻射金 屬片6 5之一長邊651大致平行於該第一接地面6 3之上方邊 緣6 3 1，且該彎折之輻射金屬片6 5沿著其長邊651之方向具 有至少三次彎折，使得該彎折之輻射金屬片6 5之截面大致 為一矩形，且該彎折之輻射金屬片6 5包含一饋入點6 5 2 ; 及一饋入同軸傳輸線6 6，用以傳輸訊號，包含：一中心導 線6 6 1，連接至該彎折之輻射金屬片6 5之該饋入點6 5 2 ;及 一外層接地導體6 6 2，連接至該第二接地面6 4之該接地點 6 43 ° 第7圖為本發明天線之其他實施例結構圖。本實施例7 包括：一第一（系統）接地面或筆記型電腦液晶螢幕（LCD) 之支撑金屬背板或行動式電視（mobile TV set)液晶螢幕 之支撐金屬背板7 3，其形狀大致為一矩形，而在該第一接 地面73之一上方邊緣731，具有一大致為矩形之缺口 732， 而該缺口之一長邊7 3 3大致平行於該第一接地面7 3之該上 方邊緣731，而該缺口 73 2之一短邊73 4大致垂直於該第一 接地面7 3之該上方邊緣7 3 1 ; —第二（天線）接地面7 4，其 形狀大致為一矩形，且該第二接地面7 4之一長邊7 4 1平行 並電氣連接至該第一接地面7 3之該上方邊緣7 3 1，而該第 二接地面7 4之一短邊7 4 2大致切齊該第一接地面7 3之該缺 口 7 3 2之該短邊7 3 4，且該第二接地面7 4包含一接地點7 4 3 ;一輻射中空金屬柱7 5，其長度介於該天線之中心操作頻 率之1 / 4〜1 / 8波長之間，且該輻射中空金屬柱7 5大致位於 該第一接地7 3之該缺口 7 3 2上方，而該輻射中空金屬柱7 5Page 17 1239676 V. Description of the invention (8) is located above the notch 6 3 2 of the first ground 6 3, and one of the long sides 651 of the bent radiation metal sheet 6 5 is substantially parallel to the first ground plane 6 The upper edge 6 3 1 of 3, and the bent radiating metal sheet 65 has at least three bends along the direction of its long side 651, so that the cross section of the bent radiating metal sheet 65 is approximately a rectangle, and The bent radiating metal sheet 6 5 includes a feeding point 6 5 2; and a feeding coaxial transmission line 6 6 for transmitting signals, including: a center wire 6 6 1 connected to the bent radiating metal sheet The feeding point 6 5 2 of 65 and an outer ground conductor 6 62 2 connected to the ground point 6 43 of the second ground plane 64. Figure 7 is a structural diagram of another embodiment of the antenna of the present invention. This embodiment 7 includes: a first (system) ground plane or a supporting metal back plate 73 for a liquid crystal screen (LCD) of a notebook computer or a supporting metal back plate 73 for a liquid crystal screen of a mobile TV set, which is roughly shaped Is a rectangle, and an upper edge 731 of one of the first ground planes 73 has a substantially rectangular notch 732, and a long side 7 3 3 of the notch is approximately parallel to the upper side of the first ground plane 73 Edge 731, and one of the short sides 73 4 of the notch 73 2 is substantially perpendicular to the upper edge 7 3 1 of the first ground plane 7 3; the second (antenna) ground plane 7 4 is substantially rectangular in shape, And a long side 7 4 1 of the second ground plane 7 4 is parallel and electrically connected to the upper edge 7 3 1 of the first ground plane 7 3 and a short side 7 4 2 of the second ground plane 7 4 The short sides 7 3 4 of the notch 7 3 2 of the first ground plane 7 3 are roughly aligned, and the second ground plane 7 4 includes a ground point 7 4 3; a radiating hollow metal pillar 7 5 having a length Between the 1/4 ~ 1/8 wavelength of the center operating frequency of the antenna, and the radiating hollow metal pillar 7 5 is located approximately at the first connection Above the notch 7 3 2 of ground 7 3, and the radiating hollow metal pillar 7 5
第18頁 1239676 五、發明說明（9) 之一長邊7 5 1大致平行於該第一接地面7 3之上方邊緣7 3 1 ’ 且該輻射中空金屬柱7 5亦可以由一輻射金屬片經過連續性 之彎折而形成，使得該輻射中空金屬柱7 5之截面大致為一 圓形，且該輕射中空金屬柱75包含一饋入點752;及一饋 入同軸傳輸線7 6，用以傳輸訊號，包含：一中心導線7 6 1 ，連接至該輻射中空金屬柱7 5之該饋入點752;及一外層 接地導體7 6 2，連接至該第二接地面7 4之該接地點7 4 3。Page 18 1239676 V. Description of the invention (9) One of the long sides 7 5 1 is substantially parallel to the upper edge 7 3 1 ′ of the first ground plane 7 3 and the radiating hollow metal pillar 7 5 may also be made of a radiating metal sheet. It is formed by continuous bending, so that the cross section of the radiating hollow metal pillar 75 is approximately a circle, and the light-emitting hollow metal pillar 75 includes a feeding point 752; and a coaxial transmission line 76 feeding, The transmission signal includes: a center wire 7 6 1 connected to the feeding point 752 of the radiating hollow metal pillar 7 5; and an outer ground conductor 7 6 2 connected to the connection of the second ground plane 7 4 Location 7 4 3.
第8圖為本發明天線之其他實施例結構圖。本實施例8 包括：一第一（糸統）接地面或筆記型電腦液晶榮幕（LCD) 之支撐金屬背板或行動式電視（mobile TV set)液晶螢幕 之支撐金屬背板8 3，其形狀大致為一矩形，而在該第一接 地面83之一側邊邊緣831，具有一大致為矩形之缺口 83 2， 而該缺口之一長邊8 3 3大致平行於該第一接地面8此該側 邊邊緣831，而該缺口 832之一短邊834大致垂直於該第一 接地面8 3之該側邊邊緣8 3 1 ; —第二（天線）接地^其 形狀大致為一矩形，且該第二接地面84之贫 ^ ^ ^ 並電氣連接至該第一接地面8 3之該側邊邊緣^ β — 二接地面84之一短邊842大致切齊該第〆接 垃&赴Q :FIG. 8 is a structural diagram of another embodiment of the antenna of the present invention. The eighth embodiment includes a first (orthodox) ground plane or a supporting metal back plate of a liquid crystal screen (LCD) of a notebook computer or a supporting metal back plate 8 of a mobile TV set. The shape is approximately a rectangle, and a side edge 831 of the first ground plane 83 has a substantially rectangular notch 83 2, and a long side 8 3 3 of the notch is substantially parallel to the first ground plane 8 The side edge 831, and one short side 834 of the notch 832 is substantially perpendicular to the side edge 8 3 1 of the first ground plane 8 3; the second (antenna) ground ^ has a substantially rectangular shape, And the second ground plane 84 is poorly connected ^ ^ ^ and is electrically connected to the side edge ^ β of the first ground plane 8 3-one of the two ground planes 84 has a short side 842 substantially aligned with the first ground plane & Go to Q:
口 8 3 2之該短邊8 34,且該第二接地面84包3 介 …轄射金屬ϋ 85，其形狀大致為一矩开i ^ ^金3 天線之中心操作頻率之1 / 4〜1 / 8波長之間’加丨，而锋 片85大致位於該第一接地面83之該缺口 8 3 2外从 =虽 射金屬片8 5之一長邊8 5 1大致平行於該第〆换^ &平Γ則 邊邊緣831，而該輻射金屬片85之一短邊852 丁；《亥The short side 8 34 of port 8 3 2 and the second ground plane 84 include 3 media ... radiating metal ϋ 85, the shape of which is approximately a quarter of an opening i ^ ^ gold 3 1/4 of the center operating frequency of the antenna ~ 1/8 wavelength is added, and the blade 85 is approximately located at the notch 8 3 2 of the first ground plane 83. The long edge 8 5 1 is approximately parallel to the first ground plane 8 5 1 Change ^ & flat Γ has an edge 831, and one of the radiating metal sheets 85 has a short side 852 D; "Hai
第19頁 1239676 _ 五、發明說明（ίο) _ 第二接地面8 4之該短邊8 4 2，且該輻射金屬片8 5包含一饋 一 入點8 5 3 ;及一饋入同軸傳輸線8 6，用以傳輸訊號，包含 > :一中心導線8 6 1，連接至該輻射金屬片8 5之該饋入點8 5 3 ;及一外層接地導體8 6 2，連接至該第二接地面8 4之該接 地點8 4 3。 . 以上說明中所述之實施例僅為說明本發明之原理及其 功效，而非限制本發明。因此，習於此技術之人士可在不 ' 違背本發明之精神對上述實施例進行修改及變化。本發明 之權利範圍應如後述之申請專利範圍所列。1239676 on page 19 _ V. Description of the invention (ίο) _ The short side 8 4 2 of the second ground plane 8 4 and the radiating metal sheet 8 5 includes a feed-in point 8 5 3; and a feed-in coaxial transmission line 8 6 for transmitting signals, including: a center wire 8 6 1 connected to the feed point 8 5 3 of the radiating metal sheet 8 5; and an outer ground conductor 8 6 2 connected to the second This ground point 8 4 3 of the ground plane 8 4. The embodiments described in the above description are only for explaining the principle of the present invention and its effects, but not for limiting the present invention. Therefore, those skilled in the art can make modifications and changes to the above embodiments without departing from the spirit of the present invention. The scope of rights of the present invention should be listed in the scope of patent application mentioned later.
第20頁 1239676 圖式簡單說明 ： 第1圖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實驗量測結果。 第3圖為本發明天線一實施例之輻射場型於頻率6 3 8 MHz之 量測結果。 第4圖為本發明天線之其他實施例結構圖。 ~ 第5圖為本發明天線之其他實施例結構圖。 第6圖為本發明天線之其他實施例結構圖。 _ 第7圖為本發明天線之其他實施例結構圖。 第8圖為本發明天線之其他實施例結構圖。 元件符號說明： 1 :本發明天線一實施例 13:第一（系統）接地面或筆記型電腦液晶螢幕（LCD)之支 撐金屬背板或行動式電視（mobile TV set)液晶螢幕 之支撐金屬背板 1 3 1 :第一（系統）接地面之上方邊緣 1 32 :第一（系統）接地面之缺口（notch) 1 3 3 :第一（系統）接地面缺口之一長邊 1 34 :第一（系統）接地面缺口之一短邊 _ 1 4 :第二（天線）接地面 1 4 1 :第二（天線）接地面之一長邊 1 4 2 :第二（天線）接地面之一短邊 1 4 3 :接地點Page 20 1239676 Brief description of the drawings: Fig. 1 is a structural diagram of an embodiment of the antenna of the present invention. Figure 2 is the measurement result of the return loss experiment of an embodiment of the antenna of the present invention. Fig. 3 is a measurement result of a radiation field pattern of an antenna of the present invention at a frequency of 6 3 8 MHz. FIG. 4 is a structural diagram of another embodiment of the antenna of the present invention. Figure 5 is a structural diagram of another embodiment of the antenna of the present invention. FIG. 6 is a structural diagram of another embodiment of the antenna of the present invention. _ Figure 7 is a structural diagram of another embodiment of the antenna of the present invention. FIG. 8 is a structural diagram of another embodiment of the antenna of the present invention. Explanation of component symbols: 1: Embodiment 13 of the antenna of the present invention 13: The first (system) ground plane or the supporting metal back plate of the liquid crystal screen (LCD) of a notebook computer or the supporting metal back of a liquid crystal screen of a mobile TV set Board 1 3 1: Upper edge of the first (system) ground plane 1 32: Notch of the first (system) ground plane 1 3 3: One of the long sides of the first (system) ground plane gap 1 34: No. One short edge of one (system) ground plane gap_ 1 4: Second (antenna) ground plane 1 4 1: One long side of second (antenna) ground plane 1 4 2: One of second (antenna) ground plane Short side 1 4 3: Ground point
第21頁 1239676 圖式簡單說明 1 5 ·輕射金屬片 151:輻射金屬片之一長邊 1 5 2 :輻射金屬片之一短邊 1 5 3 :饋入點 1 6 :饋入同軸傳輸線 1 6 1 :饋入同軸傳輸線之中心導線 1 6 2 :饋入同軸傳輸線之外層接地導體 d :輻射金屬片與第二（天線）接地面之距離 t :第一（系統）接地面缺口之一長邊與輻射金屬片之距離Page 21 1239676 Brief description of the diagram 1 5 · Light shot metal sheet 151: One long side of the radiating metal sheet 1 5 2: One short side of the radiating metal sheet 1 5 3: Feed point 1 6: Feed into the coaxial transmission line 1 6 1: Central conductor fed into coaxial transmission line 1 6 2: Ground conductor fed into outer layer of coaxial transmission line d: Distance between radiating metal sheet and second (antenna) ground plane t: One of the gaps in the first (system) ground plane Distance between edge and radiating metal sheet
2 1 :本發明天線一實施例之操作頻寬 4:本發明天線之其他實施例 43 :第一（系統）接地面或筆記型電腦液晶螢幕（LCD)之支 擇金屬背板或行動式電視（m 〇 b i 1 e T V s e t)液晶螢幕 之支撐金屬背板 4 3 1 :第一（系統）接地面之上方邊緣 4 3 2 :第一（系統）接地面之缺口（ η 〇 t c h )21: Operating bandwidth of one embodiment of the antenna of the present invention 4: Other embodiments of the antenna of the present invention 43: First (system) ground plane or optional metal backplane of a notebook computer liquid crystal display (LCD) or mobile TV (M 〇bi 1 e TV set) Liquid crystal screen supporting metal back plate 4 3 1: Upper edge of the first (system) ground plane 4 3 2: Notch of the first (system) ground plane (η 〇tch)
4 3 3 :第一（系統）接地面缺口之一長邊 4 3 4 :第一（系統）接地面缺口之一短邊 44 :第二（天線）接地面 4 4 1 :第二（天線）接地面之一長邊 4 4 2 :第二（天線）接地面之一短邊 4 4 3 :接地點4 3 3: One long side of the first (system) ground plane notch 4 3 4: One short side of the first (system) ground plane notch 44: Second (antenna) ground plane 4 4 1: Second (antenna) One long side of the ground plane 4 4 2: One short side of the second (antenna) ground plane 4 4 3: Ground point
第22頁 1239676 圖式簡單說明 4 5 :彎折之輻射金屬片 4 5 1 :彎折之輻射金屬片之一長邊暨彎折線 4 5 2 :彎折之輻射金屬片之一短邊 4 5 3 :饋入點 4 6 :饋入同軸傳輸線 4 6 1 :饋入同軸傳輸線之中心導線 4 6 2 :饋入同軸傳輸線之外層接地導體 5:本發明天線之其他實施例1239676 Page 22 Brief description of the diagram 4 5: Bent radiant metal sheet 4 5 1: One long side of the radiant metal sheet and the bending line 4 5 2: One short side of the radiant metal sheet 4 5 3: Feed point 4 6: Feed coaxial transmission line 4 6 1: Feed coaxial center line 4 6 2: Feed coaxial transmission line outer ground conductor 5: Other embodiments of the antenna of the present invention
5 3 ··第一（系統）接地面或筆記型電腦液晶螢幕（LCD)之支 撐金屬背板或行動式電視（mobile TV set)液晶螢幕 之支撐金屬背板 5 3 1 :第一（系統）接地面之上方邊緣 5 3 2 :第一（系統）接地面之缺口（ η 〇 t c h )5 3 ·· The first (system) ground plane or the supporting metal back plate of the liquid crystal display (LCD) of a notebook computer or the supporting metal back plate of a mobile TV set (LCD) 5 3 1: the first (system) Upper edge of the ground plane 5 3 2: Notch (η 〇tch) of the first (system) ground plane
5 3 3 :第一（系統）接地面缺口之一長邊 5 3 4 :第一（系統）接地面缺口之一短邊 54 :第二（天線）接地面 5 4 1 :第二（天線）接地面之一長邊 5 4 2 :第二（天線）接地面之一短邊 5 4 3 :接地點 5 5 :彎折之幸畐射金屬片 5 5 1 :彎折之輻射金屬片之一長邊暨彎折線 5 5 2 :彎折之輻射金屬片之一長邊暨彎折線 5 5 3 :彎折之輻射金屬片之一短邊5 3 3: One long side of the first (system) ground plane notch 5 3 4: One short side of the first (system) ground plane notch 54: Second (antenna) ground plane 5 4 1: Second (antenna) One of the long sides of the ground plane 5 4 2: One of the short sides of the second (antenna) ground plane 5 4 3: The grounding point 5 5: The bent metal sheet 5 5 1: The bent metal sheet Long side and bend line 5 5 2: One of the bent radiant metal sheets Long side and bend line 5 5 3: One of the short sides of the radiated metal sheet
第23頁 1239676 圖式簡單說明 5 5 4 :饋入點 5 6 :饋入同軸傳輸線 5 6 1 :饋入同轴傳輸線之中心導線 5 6 2 :饋入同軸傳輸線之外層接地導體 6:本發明天線之其他實施例 63 :第一（系統）接地面或筆記型電腦液晶螢幕（LCD)之支 撑金屬背板或行動式電視（mobile TV set)液晶螢幕 之支撐金屬背板 6 3 1 :第一（系統）接地面之上方邊緣 632:第一（系統）接地面之缺口（notch) 6 3 3 :第一（系統）接地面缺口之一長邊 6 3 4 :第一（系統）接地面缺口之一短邊 64 :第二（天線）接地面 6 4 1 :第二（天線）接地面之一長邊 6 4 2 :第二（天線）接地面之一短邊 6 4 3 :接地點 6 5 :彎折之幸畐射金屬片 6 5 1 :彎折之輻射金屬片之一長邊暨彎折線 6 5 2 :饋入點 6 6 :饋入同轴傳輸線 6 6 1 :饋入同轴傳輸線之中心導線 6 6 2 :饋入同軸傳輸線之外層接地導體Page 23 1239676 Brief description of the drawings 5 5 4: Feed point 5 6: Feed coaxial transmission line 5 6 1: Feed central coaxial line 5 6 2: Feed coaxial outer line ground conductor 6: The present invention Other embodiments of the antenna 63: The first (system) ground plane or the supporting metal back plate of a liquid crystal screen (LCD) of a notebook computer or the supporting metal back plate of a liquid crystal screen of a mobile TV set 6 3 1: first Upper edge of the (system) ground plane 632: Notch of the first (system) ground plane 6 3 3: One of the long sides of the first (system) ground plane gap 6 3 4: Notch of the first (system) ground plane One short side 64: second (antenna) ground plane 6 4 1: one long side of second (antenna) ground plane 6 4 2: one short side of second (antenna) ground plane 6 4 3: ground point 6 5: Bend fortunately shoot metal sheet 6 5 1: One of the radiated metal sheet of the bend long side and bend line 6 5 2: Feed point 6 6: Feed coaxial transmission line 6 6 1: Feed coaxial Central conductor of the transmission line 6 6 2: Feed into the outer ground conductor of the coaxial transmission line
第24頁 1239676 圖式簡單說明 7:本發明天線之其他實施例 73 :第一（系統）接地面或筆記型電腦液晶螢幕（LCD)之支 撐金屬背板或行動式電視（m 〇 b i 1 e T V s e t)液晶螢幕 之支撐金屬背板 7 3 1 :第一（系統）接地面之上方邊緣 7 3 2 :第一（系統）接地面之缺口（ η 〇 t c h ) 7 3 3 :第一（系統）接地面缺口之一長邊 7 3 4 :第一（系統）接地面缺口之一短邊 74 :第二（天線）接地面 7 4 1 :第二（天線）接地面之一長邊 7 4 2 :第二（天線）接地面之一短邊 7 4 3 :接地點 7 5 :輻射中空金屬柱 751:輻射中空金屬柱之一長邊 7 5 2 :饋入點 7 6 :饋入同軸傳輸線 7 6 1 ··饋入同軸傳輸線之中心導線 7 6 2 :饋入同軸傳輸線之外層接地導體 8 :本發明天線之其他實施例 83 :第一（系統）接地面或筆記型電腦液晶螢幕（LCD)之支 携金屬背板或行動式電視（m 〇 b i 1 e T V s e t)液晶螢幕 之支撐金屬背板 8 3 1 :第一（系統）接地面之一側邊邊緣1239676 on page 24 Brief description of the drawing 7: Other embodiments of the antenna of the present invention 73: The first (system) ground plane or the supporting metal back plate of the liquid crystal screen (LCD) of a notebook computer or mobile TV (m 0 1 e TV set) Supporting metal back plate for LCD screen 7 3 1: Upper edge of the first (system) ground plane 7 3 2: Notch (η 〇tch) of the first (system) ground plane 7 3 3: First (system ) One long side of the ground plane gap 7 3 4: One short side of the first (system) ground plane gap 74: Second (antenna) ground plane 7 4 1: One long side of the second (antenna) ground plane 7 4 2: One short side of the second (antenna) ground plane 7 4 3: Ground point 7 5: Radiation hollow metal pillar 751: One long side of radiating hollow metal pillar 7 5 2: Feed point 7 6: Feed into coaxial transmission line 7 6 1 ·· Center cable feeding coaxial transmission line 7 6 2: Feeding ground conductor of outer layer of coaxial transmission line 8: Other embodiments of the antenna of the present invention 83: First (system) ground plane or liquid crystal display (LCD) of notebook computer ) Support with metal backplane or mobile TV (m 〇bi 1 e TV set) LCD screen support Metal backplane 8 3 1: One of the side edges of the first (system) ground plane
第25頁 1239676 圖式簡單說明 8 3 2 ··第一（系統）接地面之缺口（ η 〇 t c h ) 8 3 3 :第一（系統）接地面缺口之一長邊 8 3 4 :第一（系統）接地面缺口之一短邊 84 :第二（天線）接地面 8 4 1 :第二（天線）接地面之一長邊 8 4 2 :第二（天線）接地面之一短邊 8 4 3 :接地點 8 5 :輻射金屬片 851:輻射金屬片之一長邊 8 5 2 :輻射金屬片之一短邊 8 5 3 :饋入點 8 6 :饋入同軸傳輸線 8 6 1 :饋入同軸傳輸線之中心導線 8 6 2 ··饋入同軸傳輸線之外層接地導體1239676 Page 25 Brief description of the drawing 8 3 2 ·· The first (system) ground plane gap (η 〇tch) 8 3 3: One of the first (system) ground plane gap one long side 8 3 4: First ( System) One of the short sides of the ground plane gap 84: The second (antenna) ground plane 8 4 1: The long side of the second (antenna) ground plane 8 4 2: The short side of the second (antenna) ground plane 8 4 3: Grounding point 8 5: Radiation metal sheet 851: One long side of the radiating metal sheet 8 5 2: One short side of the radiating metal sheet 8 5 3: Feeding point 8 6: Feeding the coaxial transmission line 8 6 1: Feeding The center conductor of the coaxial transmission line 8 6 2 ·· Feed into the outer ground conductor of the coaxial transmission line
第26頁Page 26
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|---|---|---|---|
| TW93117083A TWI239676B (en) | 2004-06-14 | 2004-06-14 | Antenna for receiving the digital television signals |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW93117083A TWI239676B (en) | 2004-06-14 | 2004-06-14 | Antenna for receiving the digital television signals |
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| TWI239676B true TWI239676B (en) | 2005-09-11 |
| TW200541152A TW200541152A (en) | 2005-12-16 |
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