TWI240451B - Antenna for receiving the digital television signals - Google Patents
Antenna for receiving the digital television signals Download PDFInfo
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- TWI240451B TWI240451B TW93119185A TW93119185A TWI240451B TW I240451 B TWI240451 B TW I240451B TW 93119185 A TW93119185 A TW 93119185A TW 93119185 A TW93119185 A TW 93119185A TW I240451 B TWI240451 B TW I240451B
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1240451 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 在筆記型電腦或其他行動式通訊產品中。 【先前技術】 由於無線通訊的蓬勃發展，無線產品的應用也越來 越廣泛，而隨著數位電視的正式開播，現在只要藉由可 攜式電視（ρ 〇 r t a b 1 e T V )等商品，即可方便地收看數位電 視。數位電視是將電視訊號由”類比訊號”轉換為”數位訊 號’f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)、曰本的ISDB-T(Terrestria 1 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 0年6月起改制採用歐洲的D V B - T系統，因為該系統之 調變（C 0 F D Μ )標準信號能有效地解決多重路徑 (m u 1 t i p a t h )干擾的問題，同時歐規系統可以構成單頻$ 播網（S F N )，對收視不良之地區建立改善收視轉播站，^ 歐規系統更具有行動接收（m 〇 b i 1 e r e c e p t i ο η )之4寺色， 在車速高達1 3 0公里時仍可收看電視。再加上政府將於& 國95年1月1曰停止類比電視廣播，全面改為數位廣播彳唯 普及率必須達到8 5 % )，所以預期電視廣播系統將邁人^ 位化時代。台灣專利公告第5 2 1，4 5 5號”數位電視之平面1240451 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 other mobile communication products. [Previous technology] Due to the booming development of wireless communication, the application of wireless products has become more and more widespread. With the official launch of digital television, now as long as the use of portable televisions (ρ 〇 rtab 1 e TV) and other products, namely Convenient to watch digital TV. 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 in Japan. -T (Terrestria 1 Integrated Services Digital Broadcasting), and DVB-T (Digital Video Broadcasting-Terrestrial) in Europe. Taiwan was announced on March 31, 1986 by the Ministry of Transport to adopt the US regulatory system, and from 1990 In June, the European DVB-T system was adopted for restructuring, because the modulation (C 0 FD Μ) standard signal of the system can effectively solve the problem of multi-path (mu 1 tipath) interference, and the European regulatory system can constitute a single frequency. Broadcast Network (SFN), to establish improved viewing and broadcasting stations in areas with poor ratings, ^ The European regulatory system has 4 temples for mobile reception (m 〇bi 1 erecepti ο η), and can still watch at speeds of up to 130 kilometers TV. In addition, the government will stop analog TV broadcasting on January 1, 1995, and change it to digital broadcasting (only the penetration rate must reach 85%). TV broadcasting system will enter the era of digitization. Taiwan Patent Announcement No. 5 2 1, 4 5 5 "Digital TV Plane
第11頁 1240451 五、發明說明（2) 縮小化天線π ，其揭示一種利用縮小化天線以接收數位電 視訊號的例子，雖然該天線可接收數位電視訊號，但由 於其體積過大，使得該天線仍無法内建於一般行動式商 品中（如筆記型電腦）而與系統相整合，在應用上之方便 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111^( 4 7 0 -8 0 6 Μ Η ζ )之數位電視頻帶，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。Page 11 1240451 V. Description of the invention (2) Reduced antenna π, which discloses an example of using a reduced antenna to receive digital television signals. Although the antenna can receive digital television signals, it is still too large due to its size It cannot be built into general mobile products (such as laptops) and integrated with the system, which is less convenient in application. 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 band with an operating bandwidth covering 111 ^ (4 7 0-8 0 6 Μ Η ζ), but also the antenna of the present invention can easily Built in laptops or other mobile communications products, it achieves the benefits of a built-in antenna design.
【發明内容】[Summary of the Invention]
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U H F (4 7 0 - 8 0 6 Μ Η ζ )之數位電視頻帶，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：一接地面，其 形狀大致為一矩形，且在該接地面之一上方邊緣處，具 有一大致為矩形之缺口 ，而該缺口之一長邊大致平行於 該接地面之該上方邊緣，該接地面並具有一接地點；一 輻射金屬片，大致位於該接地面之該缺口上方，包含： 一第一子輻射金屬片，其形狀大致為一矩形，具有一第 一側邊及一相對於該第一側邊之第二側邊，該第一側邊 接近且大致平行於該缺口之該長邊，並與該缺口之該長 邊之間具有一間隙，該間隙之寬度小於5 mm，且該第一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 band with an operating bandwidth covering UHF (470-8 0 6 Μ Η ζ). Easily built into laptops or other mobile communications products to achieve the benefits of a built-in antenna design. The antenna of the present invention includes: a ground plane having a substantially rectangular shape, and at the upper edge of one of the ground planes, there is a substantially rectangular notch, and a long side of the notch is substantially parallel to the ground plane. An upper edge, the ground plane has a ground point; a radiating metal sheet, which is located substantially above the notch of the ground plane, includes: a first sub-radiating metal sheet, which is approximately rectangular in shape and has a first side And a second side opposite to the first side, the first side is close to and approximately parallel to the long side of the gap, and there is a gap between the long side of the gap and the width of the gap Less than 5 mm, and the first
第12頁 1240451 五、發明說明（3) 子輻射金屬片包含一饋入點；及一第二子輻射金屬片， 其形狀大致為一矩形，具有一第一長邊及一相對於該第 一長邊之第二長邊，該第一長邊及該第二長邊均大致平 行於該缺口之該長邊，且該第一長邊電氣連接於該第一 子輻射金屬片之該第二側邊，使該輻射金屬片大致為一 倒L形；及一饋入同軸傳輸線，用以傳輸訊號，包含： 一中心導線，連接至該第一子輻射金屬片之該饋入點； 及一外層接地導體，連接至該接地面之該接地點。 在本項設計中，我們可以藉由調整該輻射金屬片之 長度，而得到適當的中心操作頻率；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；並藉由調整該接地面之該缺口之該長邊與該第二子 輻射金屬片之距離（t)(一般大於5 m m )來得到良好的匹配 以及一寬頻帶操作。由以上特性，吾人即可以設計出適 用於數位電視UHF頻帶（ 4 7 0 - 8 0 6 MHz)接收之天線，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包含：一接地 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（mobi le TV set)液晶螢幕之支撐金屬背板12，其形 狀大致為一矩形，且在該接地面1 2之一上方邊緣1 2 1 ，具 有一大致為矩形之缺口 122，而該缺口 122之一長邊123大Page 12 1240451 V. Description of the invention (3) The sub-radiation metal sheet includes a feed point; and a second sub-radiation metal sheet, which is substantially rectangular in shape, has a first long side and a first opposite side to the first The second long side of the long side, the first long side and the second long side are substantially parallel to the long side of the notch, and the first long side is electrically connected to the second long side of the first sub-radiation metal sheet The side makes the radiating metal sheet approximately an inverted L-shape; and a feed coaxial transmission line for transmitting signals, including: a center wire connected to the feed point of the first sub-radiating metal sheet; and An outer ground conductor is connected to the ground point on the ground plane. In this design, we can obtain the appropriate center operating frequency by adjusting the length of the radiating metal sheet; and obtain the appropriate operating bandwidth by adjusting the width of the radiating metal sheet (generally greater than 5 mm). ; And by adjusting the distance (t) between the long side of the notch of the ground plane and the second sub-radiation metal sheet (generally greater than 5 mm) to obtain a good match and a wide band operation. Based on the above characteristics, we can design an antenna suitable for digital TV UHF band (470-800 MHz) reception. At the same time, the antenna of the present invention can be easily built into a notebook computer or other mobile communication products. 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 ground plane or a support for a liquid crystal screen (LCD) of a notebook computer or a support for a liquid crystal screen of a mobile television (mobi le TV set) The metal back plate 12 is substantially rectangular in shape, and has a substantially rectangular notch 122 on an edge 1 2 1 above one of the ground planes 12, and one of the notches 122 has a long side 123 that is large.
第13頁 1240451 五、發明說明（4) 致平行於該接地面1 2之該上方邊緣1 2 1 ，該接地面1 2並具 有一接地點1 2 4 ; —輻射金屬片1 3，大致位於該接地面1 2 之該缺口 122上方，包含··一第一子輻射金屬片14，其形 狀大致為一矩形，具有一第一側邊1 4 1及一相對於該第一 側邊1 4 1之第二側邊1 4 2，該第一側邊1 4 1接近且大致平行 於該缺口122之該長邊123，並與該缺口122之該長邊123 之間具有一間隙d，該間隙d之寬度一般小於4 mm，以便 達成天線之良好阻抗匹配，且該第一子輻射金屬片1 4包 含一饋入點1 4 3 ;及一第二子輻射金屬片1 5，其形狀大致 為一矩形，具有一第一長邊151及一相對於該第一長邊 151之第二長邊152，該第一長邊151及該第二長邊152均 大致平行於該缺口 122之該長邊123，且該第一長邊151電 氣連接於該第一子輻射金屬片1 4之該第二側邊1 4 2，使該 輻射金屬片1 3大致為一倒L形；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 ，連接至該第 一子輻射金屬片1 4之該饋入點1 4 3 ;及一外層接地導體 1 6 2，連接至該接地面1 2之該接地點1 2 4。在本實施例1 中，該輻射金屬片1 3是由一單一金屬片沖壓或切割製作 而成。 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，我們選擇該接地面1 2其長度約 為260 mm、寬度約為200 mm ;該接地面12之該缺口 122之Page 13 12451451 V. Description of the invention (4) The upper edge 1 2 1 is parallel to the ground plane 12 and the ground plane 12 has a grounding point 1 2 4;-the radiating metal sheet 13 is located approximately Above the notch 122 of the ground plane 1 2 includes a first sub-radiating metal sheet 14 having a substantially rectangular shape with a first side edge 1 4 1 and a first side edge 1 4 The second side 1 of 1 is 1 4 2 and the first side 1 1 is close to and approximately parallel to the long side 123 of the notch 122 and has a gap d with the long side 123 of the notch 122. The The width of the gap d is generally less than 4 mm in order to achieve good impedance matching of the antenna, and the first sub-radiating metal sheet 14 includes a feeding point 1 4 3; and a second sub-radiating metal sheet 15 having a shape of approximately It is a rectangle with a first long side 151 and a second long side 152 opposite to the first long side 151. The first long side 151 and the second long side 152 are substantially parallel to the gap 122. The long side 123, and the first long side 151 is electrically connected to the second side edge 1 4 2 of the first sub-radiation metal sheet 1 4 so that the radiation metal sheet 1 3 is generally an inverted L-shape; and a coaxial transmission line 16 for transmitting signals, including: a central wire 16 1 connected to the feeding point 1 4 3 of the first sub-radiation metal sheet 1 4 And an outer ground conductor 16 2 connected to the ground point 1 2 4 of the ground plane 12. In the first embodiment, the radiating metal sheet 13 is made by punching or cutting a single metal sheet. FIG. 2 is a measurement result of a 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 backplane, we choose the ground plane 1 2 with a length of about 260 mm and a width of about 200 mm; the ground plane 12 with the notch 122
第14頁 1240451 五、發明說明（5) 該長邊1 2 3約為1 0 0 mm ;該第一子輻射金屬片1 4其長度約 為19 mm、寬度約為10 mm ;而該第二子輻射金屬片15其 長度約為90 mm、寬度約為10 mm ;而該第一子輻射金屬 片1 4之該第一側邊1 4 1與該接地面1 2之該缺口 1 2 2之該長 邊123之距離（d)約為2 mm ;而該接地面12之該缺口 122之 該長邊123與該輻射金屬片13之距離（t)約為20 mm。由實 驗結果得知，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UHF(470-806 MHz) 之數位電視頻帶。 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的天線賴射場型。由圖示可知，本發明天線在 X - y平面（水平面）產生大致為全向性轄射之場型，相當 適合數位電視接收天線之實際應用。 第4圖為本發明天線之其他實施例結構圖。本實施例 4包含：一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)液晶螢幕之支撑金 屬背板4 2，其形狀大致為一矩形，且在該接地面4 2之一 上方邊緣4 21 ，具有一大致為矩形之缺口 422，而該缺口 422之一長邊423大致平行於該接地面42之該上方邊緣 4 2 1 ，該接地面4 2並具有一接地點4 2 4 ; —輕射金屬片 43，大致位於該接地面42之該缺口 422上方，包含：一第 一子輻射金屬片4 4，其形狀大致為一矩形，具有一第一 側邊4 4 1及一相對於該第一側邊4 4 1之第二側邊4 4 2，該第Page 14 1240451 V. Description of the invention (5) The long side 1 2 3 is about 100 mm; the first sub-radiation metal sheet 14 has a length of about 19 mm and a width of about 10 mm; and the second The sub-radiation metal sheet 15 has a length of about 90 mm and a width of about 10 mm; and the first side edge 1 4 1 of the first sub-radiation metal sheet 14 and the notch 1 2 2 of the ground plane 12 The distance (d) of the long side 123 is about 2 mm; and the distance (t) of the long side 123 of the notch 122 of the ground plane 12 and the radiating metal sheet 13 is about 20 mm. According to the experimental results, the antenna of the present invention has an operating bandwidth of 21 under the definition of the voltage standing wave ratio of 3: 1, and can easily cover the digital television frequency band of UHF (470-806 MHz). Fig. 3 shows the antenna radiation field type of the antenna 1 in the X-z, y-z plane (vertical plane) and the x-y plane (horizontal plane; assuming that the ground is parallel to the x-y plane) at 6 3 8 Η Η z according to the first embodiment of the antenna of the present invention. As can be seen from the figure, the antenna of the present invention generates a field pattern of approximately omnidirectional radiation in the X-y plane (horizontal plane), which is quite suitable for the practical application of digital television receiving antennas. FIG. 4 is a structural diagram of another embodiment of the antenna of the present invention. This embodiment 4 includes: a ground plane or a supporting metal back plate of a liquid crystal screen (LCD) of a notebook computer or a supporting metal back plate 42 of a liquid crystal screen of a mobile TV set. The shape is approximately a rectangle, and An upper edge 4 21 of one of the ground planes 4 2 has a substantially rectangular notch 422, and a long side 423 of the notch 422 is substantially parallel to the upper edge 4 2 1 of the ground plane 42. The ground plane 4 2 and has a grounding point 4 2 4;-the light-emitting metal sheet 43 is located above the notch 422 of the ground plane 42 and includes: a first sub-radiating metal sheet 4 4 having a shape substantially rectangular and having a The first side 4 4 1 and a second side 4 4 2 opposite to the first side 4 4 1, the first
第15頁 1240451 五、發明說明（6) 一側邊441接近且大致平行於該缺口 4 2 2之該長邊4 2 3，且 該第一子轄射金屬片44包含一饋入點443 ;及一第二子輻 射金屬片45，其形狀大致為一矩形，具有一第一長邊451 及一相對於該第一長邊451之第二長邊4 52，該第一長邊 451及該第二長邊452均大致平行於該缺口 422之該長邊 423，且該第一長邊4 51電氣連接於該第一子輻射金屬片 4 4之該第二側邊4 4 2，使該輻射金屬片4 3大致為一倒L 形；及一饋入同軸傳輸線4 6，用以傳輸訊號，包含：一 中心導線4 6 1 ，連接至該第一子輻射金屬片4 4之該饋入點 4 4 3 ;及一外層接地導體4 6 2，連接至該接地面4 2之該接 地點4 2 4。在本實施例4中，該輻射金屬片4 3是由蝕刻或 印刷技術形成於一介質基板4 7上。 第5圖為本發明天線之其他實施例結構圖。本實施例 5包含：一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 2，其形狀大致為一矩形，且在該接地面5 2之一 上方邊緣521，具有一大致為矩形之缺口 522，而該缺口 5 2 2之一長邊5 2 3大致平行於該接地面5 2之該上方邊緣 5 2 1 ，該接地面5 2並具有一接地點5 2 4 ; —輻射金屬片 53，大致位於該接地面52之該缺口 522上方，包含：一第 一子輻射金屬片5 4，其形狀大致為一梯形，具有一第一 側邊5 4 1及一相對於該第一側邊5 4 1之第二側邊5 4 2，該第 一側邊5 4 1接近且大致平行於該缺口 5 2 2之該長邊5 2 3，且 該第一子輻射金屬片54包含一饋入點543 ;及一第二子輻Page 15 1240451 V. Description of the invention (6) One side 441 is close to and approximately parallel to the long side 4 2 3 of the notch 4 2 2, and the first sub-radiation metal sheet 44 includes a feed point 443; And a second sub-radiation metal sheet 45, which is substantially rectangular in shape, having a first long side 451 and a second long side 452 opposite to the first long side 451, the first long side 451 and the The second long side 452 is substantially parallel to the long side 423 of the notch 422, and the first long side 4 51 is electrically connected to the second side edge 4 4 2 of the first sub-radiation metal sheet 4 4 so that the The radiating metal sheet 4 3 is approximately an inverted L-shape; and a feed coaxial transmission line 46 is used to transmit signals, including: a center wire 4 6 1 connected to the feed of the first sub-radiating metal sheet 4 4 Point 4 4 3; and an outer ground conductor 4 6 2 connected to the ground point 4 2 4 of the ground plane 4 2. In the fourth embodiment, the radiation metal sheet 43 is formed on a dielectric substrate 47 by an etching or printing technique. FIG. 5 is a structural diagram of another embodiment of the antenna of the present invention. The fifth embodiment includes a 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 2 of a liquid crystal screen of a mobile TV set. The shape is approximately a rectangle, and An upper edge 521 of one of the ground planes 5 2 has a substantially rectangular notch 522, and a long side 5 2 3 of the notch 5 2 2 is substantially parallel to the upper edge 5 2 1 of the ground plane 5 2. The ground plane 5 2 has a ground point 5 2 4; a radiating metal sheet 53 is located above the notch 522 of the ground plane 52 and includes: a first sub-radiating metal sheet 5 4 having a substantially trapezoidal shape With a first side edge 5 4 1 and a second side edge 5 4 2 opposite to the first side edge 5 4 1, the first side edge 5 4 1 is close to and approximately parallel to the gap 5 2 2 The long side 5 2 3, and the first sub-radiation metal sheet 54 includes a feed point 543; and a second sub-radiation
第16頁 1240451 五、發明說明（7) 射金屬片55，其形狀大致為一矩形，具有一第一長邊551 及一相對於該第一長邊551之第二長邊552，該第一長邊 551及該第二長邊552均大致平行於該缺口 522之該長邊 5 2 3，且該第一長邊5 5 1電氣連接於該第一子輻射金屬片 5 4之該第二側邊5 4 2以構成該輻射金屬片5 3 ;及一饋入同 軸傳輸線5 6，用以傳輸訊號，包含：一中心導線5 6 1 ，連 接至該第一子輻射金屬片5 4之該饋入點5 4 3 ;及一外層接 地導體5 6 2，連接至該接地面5 2之該接地點5 2 4。 第6圖為本發明天線之其他實施例結構圖。本實施例 6包含：一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)液晶螢幕之支標金 屬背板62，其形狀大致為一矩形，且在該接地面62之一 上方邊緣621 ，具有一大致為矩形之缺口 622，而該缺口 622之一長邊623大致平行於該接地面62之該上方邊緣 6 2 1 ，該接地面6 2並具有一接地點6 2 4 ; —彎折之輻射金 屬片63，大致位於該接地面62之該缺口 622上方，包含： 一第一子輻射金屬片64，其形狀大致為一矩形，具有一 第一側邊6 4 1及一相對於該第一側邊6 4 1之第二側邊6 4 2， 該第一側邊6 4 1接近且大致平行於該缺口 6 2 2之該長邊 623，且該第一子輻射金屬片64包含一饋入點643 ;及一 第二子輻射金屬片65，具有一第一長邊651及一相對於該 第一長邊651之第二長邊652，該第一長邊651及該第二長 邊652均大致平行於該缺口 622之該長邊623，而該第二子 輻射金屬片6 5沿著該第二長邊6 5 2之方向具有一次彎折，Page 16 1240451 V. Description of the invention (7) The metal sheet 55 is approximately rectangular in shape and has a first long side 551 and a second long side 552 opposite to the first long side 551. The first The long side 551 and the second long side 552 are substantially parallel to the long side 5 2 3 of the notch 522, and the first long side 5 5 1 is electrically connected to the second of the first sub-radiation metal sheet 5 4 The side 5 4 2 constitutes the radiating metal sheet 5 3; and a coaxial transmission line 56 is used to transmit signals, including: a center wire 5 6 1 connected to the first sub-radiating metal sheet 5 4 A feed point 5 4 3; and an outer ground conductor 5 6 2 connected to the ground point 5 2 4 of the ground plane 5 2. FIG. 6 is a structural diagram of another embodiment of the antenna of the present invention. This embodiment 6 includes: a ground plane or a supporting metal back plate of a liquid crystal screen (LCD) of a notebook computer or a supporting metal back plate 62 of a liquid crystal screen of a mobile TV set. The shape is approximately a rectangle, and An upper edge 621 of one of the ground planes 62 has a substantially rectangular notch 622, and a long side 623 of the notch 622 is substantially parallel to the upper edge 6 2 1 of the ground plane 62. The ground plane 6 2 and Has a grounding point 6 2 4;-a bent radiating metal sheet 63, which is located substantially above the notch 622 of the ground plane 62, includes: a first sub-radiating metal sheet 64, which is substantially rectangular in shape and has a first One side 6 4 1 and a second side 6 4 2 opposite to the first side 6 4 1, the first side 6 4 1 is close to and approximately parallel to the long side 623 of the notch 6 2 2 And the first sub-radiation metal sheet 64 includes a feed point 643; and a second sub-radiation metal sheet 65 having a first long side 651 and a second long side 652 opposite to the first long side 651 , The first long side 651 and the second long side 652 are substantially parallel to the long side 623 of the notch 622, and The second sub-radiating metal strip 65 having a bent along the longitudinal direction of the second 652, the
第17頁 1240451 五、發明說明（8) 並產生一折彎線6 5 3，且該第一長邊6 5 1電氣連接於該第 一子輻射金屬片6 4之該第二側邊6 4 2以構成該輻射金屬片 6 3 ;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 ，連接至該第一子輻射金屬片6 4之該饋入點 6 4 3 ;及一外層接地導體6 6 2，連接至該接地面6 2之該接 地點6 2 4。 第7圖為本發明天線之其他實施例結構圖。本實施例 7包含··一接地面或筆記型電腦液晶螢幕（L C D )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7 2，其形狀大致為一矩形，且在該接地面7 2之一 上方邊緣721 ，具有一大致為矩形之缺口 722，而該缺口 722之一長邊723大致平行於該接地面72之該上方邊緣 7 2 1 ，該接地面7 2並具有一接地點7 2 4 ; —彎折之輻射金 屬片73，大致位於該接地面72之該缺口 722上方，包含： 一第一子輻射金屬片74，其形狀大致為一矩形，具有一 第一側邊7 4 1及一相對於該第一側邊7 4 1之第二側邊7 4 2， 該第一側邊7 4 1接近且大致平行於該缺口 7 2 2之該長邊 723，且該第一子輻射金屬片74包含一饋入點743 ;及一 第二子輻射金屬片75，具有一第一長邊751及一相對於該 第一長邊751之第二長邊752，該第一長邊751及該第二長 邊752均大致平行於該缺口 722之該長邊723，而該第二子 輻射金屬片7 5沿著該第二長邊7 5 2之方向具有二次彎折， 並產生二折彎線（7 5 3、7 5 4 )，且該第一長邊7 5 1電氣連接 於該第一子輻射金屬片7 4之該第二側邊7 4 2以構成該輻射Page 17 1240451 V. Description of the invention (8) and a bend line 6 5 3 is generated, and the first long side 6 5 1 is electrically connected to the second side edge 6 4 of the first sub-radiating metal sheet 6 4 2 to form the radiating metal sheet 6 3; and a feeding coaxial transmission line 6 6 for transmitting signals, including: a center wire 6 6 1 connected to the feeding point 6 of the first sub-radiating metal sheet 6 4 4 3; and an outer ground conductor 6 6 2 connected to the ground point 6 2 4 of the ground plane 6 2. FIG. 7 is a structural diagram of another embodiment of the antenna of the present invention. This embodiment 7 includes a ground metal surface or a supporting metal back plate 72 of a liquid crystal screen (LCD) of a notebook computer or a supporting metal back plate 72 of a liquid crystal screen of a mobile TV set. The shape is approximately a rectangle. An upper edge 721 of one of the ground planes 72 has a substantially rectangular notch 722, and a long side 723 of the notch 722 is substantially parallel to the upper edge 7 2 1 of the ground plane 72. The ground plane 7 2 and has a ground point 7 2 4;-a bent radiating metal sheet 73, which is located substantially above the notch 722 of the ground surface 72, includes: a first sub-radiating metal sheet 74, which is substantially rectangular in shape and has A first side edge 7 4 1 and a second side edge 7 4 2 opposite to the first side edge 7 4 1, the first side edge 7 4 1 is close to and approximately parallel to the length of the gap 7 2 2 Side 723, and the first sub-radiation metal sheet 74 includes a feed point 743; and a second sub-radiation metal sheet 75, having a first long side 751 and a second length opposite to the first long side 751 Side 752, the first long side 751 and the second long side 752 are substantially parallel to the long side 723 of the notch 722 The second sub-radiation metal sheet 7 5 has a secondary bend along the direction of the second long side 7 5 2 and generates a second bend line (7 5 3, 7 5 4), and the first long side 7 5 1 is electrically connected to the second side edge 7 4 2 of the first sub-radiation metal sheet 7 4 to constitute the radiation
第18頁 1240451 五、發明說明（9) 金屬片7 3 ;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 ，連接至該第一子輻射金屬片7 4之該 饋入點7 4 3 ;及一外層接地導體7 6 2，連接至該接地面7 2 之該接地點7 2 4。 第8圖為本發明天線之其他實施例結構圖。本實施例 8包含：一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)液晶螢幕之支撑金 屬背板8 2，其形狀大致為一矩形，且在該接地面8 2之一 側邊邊緣821 ，具有一大致為矩形之缺口 822，而該缺口Page 18 1240451 V. Description of the invention (9) Metal sheet 7 3; and a coaxial transmission line 76 for transmitting signals, including: a central wire 7 6 1 connected to the first sub-radiation metal sheet 7 4 The feeding point 7 4 3; and an outer ground conductor 7 6 2 connected to the ground point 7 2 4 of the ground plane 7 2. FIG. 8 is a structural diagram of another embodiment of the antenna of the present invention. This embodiment 8 includes: a 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 2 of a liquid crystal screen of a mobile TV set. The shape is approximately a rectangle, and A side edge 821 of one of the ground planes 8 2 has a substantially rectangular notch 822, and the notch
8 2 2之一長邊8 2 3大致平行於該接地面8 2之該側邊邊緣 8 2 1 ，該接地面8 2並具有一接地點8 2 4 ; —輻射金屬片 8 3，大致位於該接地面8 2之該缺口 8 2 2外側，包含：一第 一子輻射金屬片84，其形狀大致為一矩形，具有一第一 側邊8 4 1及一相對於該第一側邊8 4 1之第二側邊8 4 2，且該 第一側邊841接近且大致平行於該缺口822之該長邊8 2 3， 且該第一子輕射金屬片84包含一饋入點843 ;及一第二子 輻射金屬片85，其形狀大致為一矩形，具有一第一長邊 851及一相對於該第一長邊8 51之第二長邊8 52，該第一長 邊851及該第二長邊8 5 2均大致平行於該缺口 8 2 2之該長邊 823，且該第一長邊8 51電氣連接於該第一子輻射金屬片 8 4之該第二側邊8 4 2，使該輻射金屬片8 3大致為一 L形； 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 ，連接至該第一子輻射金屬片8 4之該饋入點 8 4 3 ;及一外層接地導體8 6 2，連接至該接地面8 2之該接One of the long sides 8 2 3 of 8 2 2 is substantially parallel to the side edge 8 2 1 of the ground plane 8 2, and the ground plane 8 2 has a ground point 8 2 4; the radiating metal sheet 8 3 is located approximately The outside of the notch 8 2 2 of the ground plane 8 2 includes: a first sub-radiating metal sheet 84 having a substantially rectangular shape with a first side edge 8 4 1 and a first side edge 8 8 opposite to the first side edge 8 The second side 8 of 4 1 is 8 4 2, and the first side 841 is close to and approximately parallel to the long side 8 2 3 of the notch 822, and the first sub-light metal piece 84 includes a feed point 843 And a second sub-radiating metal sheet 85, which is substantially rectangular in shape, having a first long side 851 and a second long side 8 52 opposite to the first long side 8 51, the first long side 851 And the second long side 8 5 2 are substantially parallel to the long side 823 of the notch 8 2 2, and the first long side 8 51 is electrically connected to the second side edge of the first sub-radiation metal sheet 8 4 8 4 2 to make the radiation metal sheet 8 3 approximately L-shaped; and a coaxial transmission line 86 for transmitting signals, including: a center wire 8 6 1 connected to the first sub-radiation metal sheet 8The feed point 8 4 3 of 4; and an outer ground conductor 8 6 2 connected to the ground plane 8 2
第19頁 1240451 五、發明說明（ίο) 地點8 2 4。 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。Page 19 1240451 V. Description of the Invention (ίο) Location 8 2 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 modify and change 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 described later.
第20頁 1240451 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 Μ Η z 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。Page 20 1240451 Brief Description of Drawings Figure 1 is a structural diagram of an embodiment of the antenna of the present invention. FIG. 2 is an experimental measurement result of return loss of an embodiment of the antenna of the present invention. FIG. 3 is a measurement result of a radiation field pattern of the antenna of the present invention at a frequency of 6 3 Μ 3 z. FIG. 4 is a structural diagram of another embodiment of the antenna of the present invention. FIG. 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. FIG. 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.
元件符號說明： 1 :本發明天線一實施例 1 2 :接地面或筆記型電腦液晶螢幕（L C D )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 2 1 :接地面之上方邊緣 122:接地面之缺口 123:接地面缺口之一長邊 1 2 4 :接地點 1 3 :輻射金屬片Description of component symbols: 1: An embodiment of the antenna of the present invention 1 2: Supported metal back plate for a ground plane or a liquid crystal screen (LCD) of a notebook computer or supported metal back plate for a liquid crystal screen of a mobile TV set 1 2 1 : Upper edge of the ground plane 122: Notch of the ground plane 123: One of the long sides of the notch of the ground plane 1 2 4: Ground point 1 3: Radiant metal sheet
14:第一子輻射金屬片 1 4 1 :第一子輻射金屬片之第一側邊 1 4 2 :第一子輻射金屬片之第二側邊 1 4 3 :饋入點14: First sub-radiation metal sheet 1 4 1: First sub-radiation metal sheet 1 4 2: Second sub-radiation metal sheet 1 4 3: Feed point
第21頁 1240451 圖式簡單說明 1 5 :第二子輻射金屬片 151:第二子輻射金屬片之第一長邊 152:第二子輻射金屬片之第二長邊 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:第一子輻射金屬片之第一側邊與接地面缺口之長邊之 距離 t:第二子輻射金屬片之第一長邊與接地面缺口之長邊之 距離1240451 on page 21 Brief description of the drawings 1 5: The second sub-radiation metal sheet 151: the first long side of the second sub-radiation metal sheet 152: the second long side of the second sub-radiation metal sheet 1 6: feeding 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 the first side of the first sub-radiating metal sheet and the long side of the ground plane notch t: Second sub Distance between the first long side of the radiating metal sheet and the long side of the ground plane notch
2 1 :本發明天線一實施例之操作頻寬 4 :本發明天線一實施例 42 :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 4 2 1 :接地面之上方邊緣 422:接地面之缺口 423:接地面缺口之一長邊2 1: Operating bandwidth of one embodiment of the antenna of the present invention 4: One embodiment of the antenna of the present invention 42: Ground plane or supporting metal back plate of a liquid crystal screen (LCD) of a notebook computer or a mobile TV set liquid crystal screen Supporting metal back plate 4 2 1: Upper edge of ground plane 422: Ground plane gap 423: Ground plane gap
4 2 4 :接地點 4 3 :輻射金屬片 44:第一子輻射金屬片 4 4 1 :第一子輻射金屬片之第一側邊4 2 4: Ground point 4 3: Radiation metal sheet 44: First sub-radiation metal sheet 4 4 1: First side of first sub-radiation metal sheet
第22頁 1240451 圖式簡單說明 4 4 2 :第一子輻射金屬片之第二側邊 4 4 3 :饋入點 4 5 :第二子輻射金屬片 451:第二子輻射金屬片之第一長邊 452:第二子輻射金屬片之第二長邊 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 4 7 :介質基板1240451 on page 22 Brief description of the diagram 4 4 2: The second side of the first sub-radiation metal sheet 4 4 3: The feed point 4 5: The second sub-radiation metal sheet 451: The second sub-radiation metal sheet Long side 452: The second long side of the second sub-radiation metal sheet 4 6: Feed the coaxial transmission line 4 6 1: Feed the center conductor of the coaxial transmission line 4 6 2: Feed the outer ground conductor of the coaxial transmission line 4 7: Dielectric substrate
5 :本發明天線一實施例 52 :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 2 1 :接地面之上方邊緣 522:接地面之缺口 523:接地面缺口之一長邊 5 2 4 :接地點 5 3 ·.輻射金屬片 54:第一子輻射金屬片5: An embodiment 52 of the antenna of the present invention: a ground plane or a supporting metal back plate of a liquid crystal screen (LCD) of a notebook computer or a supporting metal back plate of a liquid crystal screen of a mobile TV set 5 2 1: above the ground plane Edge 522: Ground plane notch 523: One of the ground plane notches 5 2 4: Ground point 5 3 Radiation metal sheet 54: First sub-radiation metal sheet
5 4 1 :第一子輻射金屬片之第一側邊 542:第一子輻射金屬片之第二側邊 5 4 3 :饋入點 5 5 :第二子輻射金屬片5 4 1: First side edge of the first sub-radiation metal sheet 542: Second side edge of the first sub-radiation metal sheet 5 4 3: Feed point 5 5: Second sub-radiation metal sheet
第23頁 1240451 圖式簡單說明 551:第二子輻射金屬片之第一長邊 552:第二子輻射金屬片之第二長邊 5 6 :饋入同軸傳輸線 5 6 1 :饋入同軸傳輸線之中心導線 5 6 2 :饋入同軸傳輸線之外層接地導體 6 :本發明天線一實施例 6 2 :接地面或筆記型電腦液晶螢幕（L C D )之支撐金屬背板 或行動式電視（mobile TV set)液晶螢幕之支樓金屬 背板1240451 on page 23 Brief description of the diagram 551: The first long side of the second sub-radiation metal sheet 552: The second long side of the second sub-radiation metal sheet 5 6: Feed into the coaxial transmission line 5 6 1: Feed into the coaxial transmission line Center wire 5 6 2: Feed to the outer ground conductor of the coaxial transmission line 6: An embodiment of the antenna of the present invention 6 2: Ground plane or supporting metal back plate of the liquid crystal display (LCD) of a notebook computer or mobile TV set Metal back plate of the branch of the LCD screen
6 2 1 :接地面之上方邊緣 622:接地面之缺口 623:接地面缺口之一長邊 6 2 4 :接地點 6 3 :彎折之輻射金屬片 64:第一子輻射金屬片 6 4 1 :第一子輻射金屬片之第一側邊 6 4 2 :第一子輻射金屬片之第二側邊 6 4 3 :饋入點 6 5 :第二子輻射金屬片6 2 1: The upper edge of the ground plane 622: The ground plane gap 623: One of the long sides of the ground plane gap 6 2 4: The ground point 6 3: The bent radiation metal sheet 64: The first sub-radiation metal sheet 6 4 1 : First side edge of the first sub-radiation metal sheet 6 4 2: Second side edge of the first sub-radiation metal sheet 6 4 3: Feed point 6 5: Second sub-radiation metal sheet
651:第二子輻射金屬片之第一長邊 652 •.第二子輻射金屬片之第二長邊 6 5 3 :第二子輻射金屬片之一折彎線 6 6 :饋入同軸傳輸線651: The first long side of the second sub-radiation metal sheet 652 • The second long side of the second sub-radiation metal sheet 6 5 3: One of the bend lines of the second sub-radiation metal sheet 6 6: Feed into the coaxial transmission line
第24頁 1240451 圖式簡單說明 6 6 1 :饋入同軸傳輸線之中心導線 6 6 2 :饋入同軸傳輸線之外層接地導體 7 :本發明天線一實施例 7 2 :接地面或筆記型電腦液晶螢幕（L C D )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 7 2 1 :接地面之上方邊緣 722:接地面之缺口 723:接地面缺口之一長邊Page 24 1240451 Brief description of the drawing 6 6 1: Feed the central conductor of the coaxial transmission line 6 6 2: Feed the outer ground conductor of the coaxial transmission line 7: An embodiment 7 of the antenna of the present invention 2: Ground plane or LCD screen of notebook computer (LCD) supporting metal back plate or mobile TV set supporting metal back plate 7 2 1: Upper edge of ground plane 722: Ground plane gap 723: Ground plane gap
7 2 4 :接地點 7 3 :彎折之輻射金屬片 74:第一子輻射金屬片 7 4 1 :第一子輻射金屬片之第一側邊 742:第一子輻射金屬片之第二側邊 7 4 3 :饋入點 7 5 :第二子輻射金屬片 751:第二子.輕射金屬片之第一長邊 752:第二子輻射金屬片之第二長邊 7 5 3 :第二子輻射金屬片之一折彎線7 2 4: Grounding point 7 3: Bended radiant metal sheet 74: First sub-radiation metal sheet 7 4 1: First sub-radiation metal sheet 742: Second side of first sub-radiation metal sheet Side 7 4 3: Feed point 7 5: Second sub-radiating metal sheet 751: Second sub. First long side of light-emitting metal sheet 752: Second long side of second sub-radiating metal sheet 7 5 3: No. Bend line of one of the two radiant metal sheets
7 5 4 :第二子輻射金屬片之一折彎線 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7 5 4: Bend line of one of the second sub-radiation metal sheet 7 6: Feed the coaxial transmission line 7 6 1: Feed the center conductor of the coaxial transmission line 7 6 2: Feed the ground conductor outside the coaxial transmission line
第25頁 1240451 圖式簡單說明 8 :本發明天線一實施例 82 :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)液晶螢幕之支樓金屬 背板 8 2 1 :接地面之一側邊邊緣 822:接地面之缺口 823:接地面缺口之一長邊 8 2 4 :接地點 8 3 :輻射金屬片 84:第一子輻射金屬片 8 4 1 :第一子輻射金屬片之第一側邊 8 4 2 :第一子輻射金屬片之第二側邊 8 4 3 :饋入點 8 5 :第二子輻射金屬片 851:第二子輻射金屬片之第一長邊 852 •.第二子輻射金屬片之第二長邊 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1240451 on page 25 Brief description of the drawing 8: An embodiment 82 of the antenna of the present invention: a ground plane or a supporting metal back plate of a liquid crystal display (LCD) of a notebook computer or a supporting metal back of a mobile TV set liquid crystal display Plate 8 2 1: One side edge of the ground plane 822: Ground plane notch 823: One long side of the ground plane gap 8 2 4: Ground point 8 3: Radiation metal sheet 84: First sub-radiation metal sheet 8 4 1 : First side of the first sub-radiation metal sheet 8 4 2: Second side of the first sub-radiation metal sheet 8 4 3: Feed point 8 5: Second sub-radiation metal sheet 851: Second sub-radiation metal sheet The first long side of the sheet 852 • The second long side of the second sub-radiation metal sheet 8 6: feed coaxial transmission line 8 6 1: feed the center conductor of the coaxial transmission line 8 6 2: feed the ground conductor of the outer layer of the coaxial transmission line
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW93119185A TWI240451B (en) | 2004-06-29 | 2004-06-29 | Antenna for receiving the digital television signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW93119185A TWI240451B (en) | 2004-06-29 | 2004-06-29 | Antenna for receiving the digital television signals |
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| Publication Number | Publication Date |
|---|---|
| TWI240451B true TWI240451B (en) | 2005-09-21 |
| TW200601612A TW200601612A (en) | 2006-01-01 |
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| TW93119185A TWI240451B (en) | 2004-06-29 | 2004-06-29 | Antenna for receiving the digital television signals |
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| TW (1) | TWI240451B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7847697B2 (en) * | 2008-02-14 | 2010-12-07 | 3M Innovative Properties Company | Radio frequency identification (RFID) tag including a three-dimensional loop antenna |
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