Ϊ255584 五、發明說明（1) 【务明所屬之技術領域】 本發明涉及一種；括 、 訊裝置上之天線。 、〃，尤其涉及一種應用於攜帶型通 【先前技術】 部分天i::=線通訊系統都不可缺少之重要組成 良好的通訊效果。鞞册天線」可以取得較遠的通訊距離和 動電話、個人數位二γ型通訊裴置，例如筆記型電腦、行 實現與外界之渴理、（PDA )等經常使用平面倒F型天線 且通訊質量良好。口為此種天線結構簡單，安裝方便而 事實上， 種結構簡單、：、：：：倒F型天線以外’偶極天線也是-入器（AP )、：蜱：ί之,線類型，經常被應用於無線接 相關技術可泉Ζ ;岡二^ f線路由器等攜帶型通訊裝置。 。該專利申請描 專申請公開第2004/0080464 Α1號 -表面上形成有^「種印刷式偶極天線，在介質基板之 天線的輻射部與第二：：天線和第二偶極天線’第-偶極 線的接地部與第一:=線之輪射部連接’第一偶極天 績線就可以直C接地部連接’因而一根同轴 線與第二偶極i:::和：二偶極天線饋電。第-偶極天 線結構簡單，制：：別工作在兩個不同的頻段。該偶極天 丈增益較低w衣作但是在小功率高頻發射狀態下， 白勺^制。-及帶寬相對較窄，故其應用範圍將受到較大 【發明内容】 第5頁Ϊ255584 V. INSTRUCTION DESCRIPTION (1) [Technical Field] The present invention relates to an antenna on a device. 〃, especially related to a portable type of communication [Prior Art] Part of the day i::= line communication system is indispensable for important components Good communication effect. "Record antenna" can achieve long-distance communication distance and mobile phone, personal digital two gamma-type communication devices, such as notebook computers, the realization of the thirst with the outside world, (PDA) and other common use of planar inverted F antenna and communication Good quality. The port has such a simple structure and is easy to install. In fact, the structure is simple::::: In addition to the inverted F antenna, the 'dipole antenna is also - the input device (AP),: 蜱: ί, the line type, often It is used in wireless communication technology, such as the spring communication; the portable communication device such as the gang 2 f line router. . Patent Application Publication No. 2004/0080464 No. 1 - a "printed dipole antenna, a radiating portion of an antenna of a dielectric substrate and a second:: an antenna and a second dipole antenna" are formed on the surface - The grounding portion of the dipole line is connected to the first:= line of the firing portion. The first dipole antenna line can be connected to the straight C grounding portion. Thus a coaxial line and a second dipole i::: and: The dipole antenna is fed. The structure of the dipole antenna is simple, and the system is: Do not work in two different frequency bands. The dipole gain is lower than that of the W-shirt but in the low-power high-frequency emission state. ^ system. - and the bandwidth is relatively narrow, so its application range will be larger [invention content] Page 5
^發明之主要目的在於提供 1255584 構簡單之天線 一 $貝現上述目的，本發明天線包括具有第一基面與 ;二私之基板，第一基面設置有一偶極天線，該偶極天綠 匕曰射部與接地部，一傳輸線之第一導體與輻射部相達 令了導體與接地部相連。第二基面設置有寄生元件，該 ;傳ί:ί ΐ極天線未直接電性連接’通過辆合的方式實 兄得輸線對其之饋電。 ，#較之先前技術，本發明天線在基板背面增設寄生元件 藉由其與天線之耦合效應實現了天線增益高、頻帶寬的 特”、、i 同日$部並未使天線本身的物理尺寸增加，佔據空間 變大。 具體特徵和優點將通過實施例結合附圖進行詳細說明 【貫施方式】 明同日守茶知弟一圖和弟二圖’本實施例所述天線係一 偶極天線，形成於基板上。用於增加該偶極天線增益和擴 展頻X的寄生元件也被設置於基板上。傳輸線與偶極天線 相連，直接給其饋電。 本實施例所述的基板係一印刷電路板，包括第一基面 11及與第一基面11相對之第二基面12。第一圖中第一基面 的短邊a與第二圖中第二基面12的短邊a’相互重疊。 偶極天線設置於印刷電路板之第一基面1 1，包括輕射 部2與接地部3。輻射部2與接地部3之間有一狹縫1〇。輻射The main purpose of the invention is to provide a simple antenna of 1255584. The antenna of the present invention comprises a first base surface and a second private substrate. The first base surface is provided with a dipole antenna, and the dipole antenna is green. The radiating portion and the grounding portion, the first conductor of the transmission line and the radiating portion are connected to each other to connect the conductor to the ground portion. The second base surface is provided with a parasitic element, and the ί: ΐ ΐ 天线 antenna is not directly electrically connected to the power supply by the transmission mode. Compared with the prior art, the antenna of the present invention adds parasitic components on the back surface of the substrate, and the coupling effect with the antenna achieves high antenna gain and frequency bandwidth, and the same portion of the antenna does not increase the physical size of the antenna itself. The specific features and advantages will be described in detail by way of embodiments with reference to the accompanying drawings. [Complete mode] The same antenna is a dipole antenna of the antenna system of the present embodiment. Formed on the substrate, a parasitic element for increasing the dipole antenna gain and the spreading frequency X is also disposed on the substrate. The transmission line is connected to the dipole antenna and directly feeds it. The substrate described in this embodiment is printed. The circuit board includes a first base surface 11 and a second base surface 12 opposite to the first base surface 11. The short side a of the first base surface in the first figure and the short side a of the second base surface 12 in the second figure 'The mutual overlap. The dipole antenna is disposed on the first base surface 1 of the printed circuit board, including the light-emitting portion 2 and the ground portion 3. There is a slit 1 之间 between the radiation portion 2 and the ground portion 3.
第6頁 1255584 五、發明說明（3) 部2與接地部3有相同 ° ^ ^ ^ ^ ^ ^ ^ '^10 ^ ^ 21 〇延伸出之第二 及^弟—輻射片2 i的一端 22均為L型，分別η弟-輪射片21和第二輕射片 ，且由該二輕射]二有/平部分與垂直部分（未標號） 括第一接地片3 1和第^ = 2 〇也，構形。接地部3包 輻射部2結構相同一片，如前所述，接地部3與 結構就不再贅述。笛對έ弟一接地片31與第二接地片32之 了第-偶極= ;第-接地片31共同構成 802. lla標準的頻| ，、▼扃盍1EEE所制定的 ^ ^5-^-5.825GHz 5. 2GHz所對摩、皮+ Df大致係弟—頻帶的中心頻率，即 丘同構= 第二輻射片22與第二接地片32 制定的802 11 >7炉極天線，工作在第二頻帶，涵蓋ΙΕΕΕ所 9 ^的〇2，Ub標準的頻帶（如第三圖所示），即2 4 — 率二t二，射片22的電長度大致係第二頻帶的中心頻 羊即2.45GHZ所對應波長的1/4。第一輻射片21之一 21〇與第一接地片31之一端310延伸出一對金屬窄片211、 311 ’該二金屬窄片2U、3 n用來與傳輸線焊接。 一傳輸線包括第一導體和第二導體，分別與偶極天線之 輻射=和接地部相連。本實施例中的傳輸線係同軸線纜4 ’一+端與天線相連，另一端與射頻電路相連。該同軸線纜 4的弟 導體係芯線4 1 ’該同軸線纟覽4之第二導體係金屬編 織層42。一端之芯線41與第一輻射片2 i延伸出的金屬窄片 211導接，而其金屬編織層42與第一接地片31延伸出之另Page 6 1255584 V. Description of the invention (3) The part 2 and the grounding part 3 have the same ° ^ ^ ^ ^ ^ ^ ^ '^10 ^ ^ 21 〇 the second and the second of the extension - the end of the radiation piece 2 i 22 All of the L-shaped, respectively, the η-rotor 21 and the second light-emitting piece, and the two light-emitting portions/two-part/vertical portions and the vertical portion (not numbered) include the first grounding piece 3 1 and the ^= 2 〇 also, configuration. The grounding portion 3 includes the same structure of the radiating portion 2, and as described above, the grounding portion 3 and the structure will not be described again. The flute pair of the grounding piece 31 and the second grounding piece 32 have the first-dipole=; the first-grounding piece 31 together constitutes the 802.11a standard frequency|, ▼扃盍EEE's ^^5-^ -5.825 GHz 5. 2 GHz, the skin + Df is roughly the center frequency of the frequency band, that is, the isomorphism = the 802 11 > 7 pole antenna of the second radiating piece 22 and the second grounding piece 32, working in the The second frequency band covers the ^2 of the 9^, the frequency band of the Ub standard (as shown in the third figure), that is, 2 4 - the rate 2 t 2, and the electrical length of the film 22 is approximately the center frequency of the second frequency band. 2.45 GHz corresponds to 1/4 of the wavelength. One of the first radiating fins 21 and one end 310 of the first grounding strip 31 extends a pair of metal narrow strips 211, 311' which are used for soldering to the transmission line. A transmission line includes a first conductor and a second conductor, respectively connected to the radiation of the dipole antenna = and the ground portion. In the embodiment, the transmission line coaxial cable 4' is connected to the antenna and the other end is connected to the radio frequency circuit. The coaxial system core 4 1 ' of the coaxial cable 4 views the second conductive metal braid layer 42 of the coaxial cable 4 . The core wire 41 at one end is in contact with the metal narrow piece 211 from which the first radiation piece 2 i extends, and the metal braid layer 42 and the first ground piece 31 extend out of the other.
第7頁 1255584 五、發明說明（4) 一金屬窄片311導接’這樣就實現了射頻電路之高頻訊號 電流到天線的傳輪。在前述印刷電路板的第一基面u的左 上方3又置有一小金屬片5，用來與同軸線纜4金屬編織層連 接。這樣設置，一方面提供固定同輛線纜4之作用，另一 方面提供增強輻射之作用。 寄生元件設置在印刷電路板之第二基面，包括第一 可生部6和第二寄生部7。該二寄生部6、7之間有一狹縫 100，其位於第一基面Η狹縫10的正下方。第一寄生部6位 於輻射部2的下方，第二寄生部7則位於接地部3的下方。 第一寄生部6與第二寄生部7有相同之形狀和大小，並且關 於狹縫100對稱。第一寄生部6包括有第一寄生片61、第二 寄生片62和第三寄生片63。第一寄生片61係矩形，其尺寸 與第一轄射片21的水平部分大致相同，其位於第一輻射片 2 1的水平部分正下方。第二寄生片6 2也呈矩形狀，位於第 二輻射片22遠離狹縫1〇之端部的下方，其長邊c與第一寄 生片的長邊b在一條直線上。第三寄生片6 3係υ型，開口 6 〇 朝向第二基面12的短邊a’ ，其包括上臂631和下臂632，且 沿與第一寄生片61平行的方向設置，其長度略長於第一寄 生片61。第二寄生部7包括第一寄生片71、第二寄生片72 和第二寄生片73。第三寄生片73包括上臂731和下臂732。 2於第二寄生部7與第一寄生部6的形狀大小相同，故對第 一寄生片71、第二寄生片、第三寄生片尺寸形狀就不 再贅述。結合第一圖第二圖以看出，第三寄生片73的上臂 731部分與同軸線纜4重疊，能實現對高頻訊號的輻射增強Page 7 1255584 V. INSTRUCTION DESCRIPTION (4) A metal narrow piece 311 is connected. Thus, the high frequency signal of the RF circuit is transmitted to the antenna. A small metal piece 5 is placed on the upper left side 3 of the first base surface u of the aforementioned printed circuit board for connection to the metal braid of the coaxial cable 4. This arrangement provides the function of fixing the same cable 4 on the one hand and the enhanced radiation effect on the other. The parasitic element is disposed on the second base surface of the printed circuit board and includes a first movable portion 6 and a second parasitic portion 7. There is a slit 100 between the two parasitic portions 6, 7 which is located directly below the slit 10 of the first base surface. The first parasitic portion 6 is located below the radiation portion 2, and the second parasmit portion 7 is located below the ground portion 3. The first parasitic portion 6 has the same shape and size as the second parasitic portion 7, and is symmetrical about the slit 100. The first parasitic portion 6 includes a first parasitic piece 61, a second parasitic piece 62, and a third parasitic piece 63. The first parasitic patch 61 is rectangular in shape and has substantially the same size as the horizontal portion of the first arboring sheet 21, and is located directly below the horizontal portion of the first radiating sheet 21. The second parasitic piece 6 2 is also rectangular in shape, and is located below the end of the second radiating piece 22 away from the slit 1 , and its long side c is in line with the long side b of the first coned sheet. The third parasitic piece 6 3 is a υ type, and the opening 6 〇 faces the short side a' of the second base surface 12, and includes an upper arm 631 and a lower arm 632, and is disposed in a direction parallel to the first parasitic piece 61, the length of which is slightly Longer than the first parasitic piece 61. The second parasitic portion 7 includes a first parasitic piece 71, a second parasitic piece 72, and a second parasitic piece 73. The third parasitic piece 73 includes an upper arm 731 and a lower arm 732. Since the shape of the second parasitic portion 7 and the first parasitic portion 6 are the same, the dimensions of the first parasitic sheet 71, the second parasitic sheet, and the third parasitic sheet will not be described again. As shown in the second figure of the first figure, the upper arm 731 of the third parasitic piece 73 overlaps with the coaxial cable 4, and the radiation enhancement of the high frequency signal can be realized.
1255584 五、發明說明（5) 。另外’二上臂631和731還有—— 、 。上述三對寄生片通過其自疋的改善阻抗匹配之效果 了天線的增益及擴展天線的頻二馬，天線的耦合效應提高 波比測試圖和輻射場圖中體現見，乂點可以在天線電壓駐 请芩照第三圖天線電壓駐 作頻率，縱軸係電壓駐波比 ’、^圖，橫軸係天線工 值小於2的頻帶為天線有值。按業界慣用的電壓駐波比 實施例天線之有效工作頻帶^^ 可以看出本 5.25GHz、5·4 —6GHz， 為一2.35-2· “GHz、4· 7 — 士主灸明— 」明μ現了寬頻的效果。 明苓妝弟四圖至第九圖， 4.990GHz 和 5.850GHz 頻率下之卜正 · 4GHz、 從這些輻射圖可以看出兮 ^ 及垂直極化輻射場圖， 在這三個頻率下，垂直：輻射無顯著盲區’天線工作 似、U3dBi、4 44dBl T ’取局增盈分別是4.26 .9 1 一般偶極天線的平均增益為 1:5dBl，最高增益為2 —“Μ，故本實施例天線之增益 乂好的表現。除上述頻率之外，天線工作在2 · 4工2 GHz 、 2.440GHz 、 4· 94GGHz 、 4. 970GHz 、 5. 250GHz 和5·550 GHz頻^率下之水平及垂直極化輻射場圖也有好的輻射場形 (為簡化起見’並未附圖）且天線在該頻率下增益值 較高。 曰纟不上所述’本發明確已符合發明專利之要件，爰依法 提出專利申請。惟，以上所述僅為本發明之較佳實施方式 ’自不能以此限定本發明之權利範圍。舉凡所屬技術領域 12555841255584 V. Description of invention (5). In addition, the two upper arms 631 and 731 have -, . The above three pairs of parasitic slices improve the impedance matching effect by the self-twisting effect of the antenna and the frequency of the extended antenna. The coupling effect of the antenna is improved in the wave ratio test chart and the radiation field diagram. The defect point can be at the antenna voltage. In the third diagram, the antenna voltage is stationed as the frequency, the vertical axis is the voltage standing wave ratio ', and the horizontal axis is less than 2, and the frequency band is the antenna. According to the industry's usual voltage standing wave ratio embodiment of the effective working frequency of the antenna ^ ^ can be seen this 5.25GHz, 5 · 4 - 6GHz, a 2.35-2 · "GHz, 4 · 7 - Master Moxibustion - Ming μ has the effect of broadband. Ming 苓 苓 苓 四 四 四 四 四 四 四 四 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. There is no significant blind area in the radiation 'the antenna works like, U3dBi, 4 44dBl T 'takes the gains are 4.26.9 1 The average gain of the general dipole antenna is 1:5dBl, the highest gain is 2 - "Μ, so the antenna of this embodiment Gain performance is good. In addition to the above frequencies, the antenna operates at 2, 4, 2 GHz, 2.440 GHz, 4.94 GGHz, 4. 970 GHz, 5. 250 GHz, and 5·550 GHz. The polarized radiation field pattern also has a good radiation field shape (for the sake of simplicity 'not shown) and the antenna has a higher gain value at this frequency. 曰纟The above description does not meet the requirements of the invention patent, The patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, which is not intended to limit the scope of the invention.
第ίο頁 1255584 圖式簡單說明 第一圖係本發明天線正面圖。 第二圖係本發明天線背面圖。 第三圖係本發明天線電壓駐波比測試圖。 第四圖係本發明天線工作頻率為2. 484GHz時的垂直極化輻 射場圖。 第五圖係本發明天線工作頻率為2. 484GHz時的水平極化輻 射場圖。 第六圖係本發明天線工作頻率為4. 9 9 0GHz時的垂直極化輻 射場圖。Page 255 1255584 Brief Description of the Drawing The first figure is a front view of the antenna of the present invention. The second figure is a rear view of the antenna of the present invention. The third figure is a test diagram of the antenna voltage standing wave ratio of the present invention. The fourth figure is a vertical polarization radiation field diagram of the antenna operating frequency of the present invention at 2.484 GHz. Figure 5 is a horizontally polarized radiation field diagram of the antenna operating frequency of the present invention at 2. 484 GHz. Figure 6 is a diagram showing the vertical polarization radiation field of the antenna operating frequency of the invention of 4.99 0 GHz.
第七圖係本發明天線工作頻率為4. 99 0GHz時的水平極化輻 射場圖。 第八圖係本發明天線工作頻率為5. 85 0GHz時的垂直極化輻 射場圖。 第九圖係本發明天線工作頻率為5. 850GHz時的水平極化輻 射場圖。 第一基面 11 第二基面 12 輻射部 2 第一輻射片 21 第一輻射片 一端 210 第二幸畜射片 22 接地部 3 第一接地片 31 第一接地片 一端 310 第二接地片 32 金屬窄片 211 >311 同轴線鏡 4 芯線 41 金屬編織層 42 金屬片 5 第一寄生部 6 【主要元件符號】Figure 7 is a horizontally polarized radiation field diagram of the antenna operating frequency of the present invention at 4.99 0 GHz. Figure 8 is a diagram showing the vertically polarized radiation field of the antenna operating frequency of the present invention at 5.85 0 GHz. Figure 9 is a horizontally polarized radiation field diagram of the antenna operating frequency of the present invention at 5.850 GHz. First base surface 11 second base surface 12 radiation portion 2 first radiation sheet 21 first radiation sheet end 210 second fortune film 22 ground portion 3 first ground piece 31 first ground piece end 310 second ground plate 32 Metal narrow piece 211 > 311 coaxial line mirror 4 core wire 41 metal braid layer 42 metal sheet 5 first parasitic portion 6 [main component symbol]
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