200908440 九、發明說明： 【么明所屬之技術領域】 本發明涉及一種無線接收裝置，尤其涉及一種天線。 « 【先前技術】 移動無線通訊設備廣泛用於世界各地，比如日常生活 中使用的手機、PDA等。當使用的地區不同時，這些移動 無線通訊設備所在的無線通訊系統採用的頻率帶寬也不 同。例如，在日本地區，個人數位手機系統所採用的頻率 帶覓為810〜960MHZ ;在歐洲和美國地區，移動專家組系 統所採用的頻率帶寬為890〜960MHZ ’個人通訊網路系統 所採用的頻率帶寬171〇〜188〇MHZ，個人通訊系統所採用 的頻率T見為185〇〜199〇MHZ。因此，如何根據無線通訊 系、先的不同頻率帶寬在移動無線通訊設備中設置匹配的天 線’已經成為一個備受關注的話題。 、，目則，業界使用最廣泛的天線為平面倒置F天線和反 平面倒置F天線。如圖i所示，為一平面倒置f天線 的立體圖。天線1〇包括接地金屬板^、匹配體U、韓射 體二5、饋點接腳17和短路接腳19。其中，接地金屬板^ 上没有—饋點孔111。匹配體13平行於接地金屬板u設 置，匹配體13上設有饋電點131和接地點133。輻射體15 Ϊ接饋電點131並且平行於接地金屬板U。饋電接腳17 牙過饋電孔後連接饋電點131。短路接腳19連接接地點 和接地金屬板。 6 200908440 幸畜射體15、饋雷技胞j ί g .. 电接腳17、饋電點131及接地金屬板 =線10的電容區。其中，主要由相互平行的輻射 ”地金屬板11產生靜電電容。匹配體13、饋電接 ^ Π、饋電點131及短路接腳19構成天線㈣電感區。 :更/月疋的表不天線10的原理’請參閱圖2，圖2為平面 *天線10的等效電路圖。其中，饋點端⑽等效於饋 姑點111’接地端19〇等效於接地金屬板η。電容c由天 '0的電合區產生’電感L由天線10的電感區產生。因 此，天、線ίο上的電容區和電感區構成一 譜振電路，κ 々振電路會產生—固有頻率。當豸譜振電路的固有頻 率设置在對應的無線通訊系統的頻率帶寬中時，平面倒置 F天線10即可正常接收或者發射電磁波訊號。 干如上所述，該LC諧振電路的固有頻率受到電容區及 =感區各组成部分尺寸的影響。因此，通過設計電容區及 電感區各組成部分的尺寸即可達到確定平面倒置f天線 的固有頻率。通過調節電容區及電感區各組成部分的尺寸 亦可十分方便的調節平面倒置F天線1〇的固有頻率。同 樣’如圖3所不，為-反平面倒置F天線j 〇，的立體圖。 與平面倒置F天線1〇相比，其輻射體15，連接匹配體13, 的接地點133'而不是連接饋電點131，。因此，通過各元件 的尺寸即可達到確定反平面倒置F天線1〇，的固有頻率。 然而，由於上述兩種平面倒置F天線和反平面倒置F 天線的需要輻射體與接地金屬板之間產生的靜電電容，故 接地金屬板的尺寸受到輻射體長度的影響。因此，若接地 7 200908440 至屬板較大時，則很難將該天線置於如手機等移動通訊設 備中。 【發明内容】 有馨於此’有必要提供一種便於置於移動通訊設備中 的天線。 “ 種天線包括接地板、輻射體、匹配體、短路接腳和 :電接腳’接地板上設有馈電孔’匹配體平行於接地板， 其上叹有饋電點和接地點，短路接腳連接接地點和接地 板’饋電接腳穿過饋電孔後與饋電點連妾，輕身f體連接匹 配體，且其延伸方向與接地板垂直。 一該天線是將輻射體設置為垂直於接地板。因此，即便 賴射體的長度較長，亦不影響其在接地板上的投影面積， 從而可減小接地板的大小’便於將其置於移動通訊設備中。 【實施方式】 較佳實施方式天線2〇的立 21、匹配體23、輻射體25 體圖。 、短路 如圖4所示，為第一 天線20包括接地金屬板 接腳27和饋電接腳29。接地金屬板21上設有—饋電孔 211。匹配體23平仃於接地金屬板21設置，其上設有饋電 點231和接地點233。輻射體25 it接接地點233並向垂直 於接地金屬板21的方向上延伸。短路接腳連接接地金 屬板21和接地點233。饋電接腳 饋電點231連接。在本實施例中 29穿過饋電孔211後與 天線20的輻射體25為 200908440 螺旋狀。 其中，輻射體25、短路接腳27及接地金屬板21構成 天線20的電容區，其通過輻射體25與接地板21之間產生 電谷。匹配體23、短路接腳27及饋電接腳29構成天線加 的電感區。I更清楚的表示天線2〇的原王里，請參閱圖5， 圖5為天線20的原理圖，其與圖4中的等效元件或者等效 位置採用相同的標號。電容c由輻射體25上的螺旋圈如 251、253等與地面之間產生，即由電容區產生，電感[由 天線20的電感區產生。該電感區與電容區共同構成一 π 諧振電路，該LC諧振電路會產生一固有頻率。當該lc ，振電路的固有頻率設置在對應的無線通訊系統的田頻率帶 寬中時’天線2G即可正常接收或者發射電磁波訊號。 因為該IX諧振電路的頻率受到電容區及 =部分尺寸的影響。㈣，通過設計或者㈣電容區= 感&各組成部分的尺寸即可達到確定天線2〇的固有頻 率，如匹配體23的長度、輻射體25的長度、螺旋之間門 距、短路接腳27的長度、饋電接腳29的長度等。 曰 大線20將輻射 ....... ”v —此"、饮吧贫屬板21，兩 是平行於接地金屬板2ί。因此，即便輻射體乃的長戶 長亦不影響其在接地金屬板21上的投影面積，從而可 :::地金屬板21的大小，以便於將其置於狹長的圖線 δ又備如手機中。 狀 在第一較佳實施方式天線20中，該輻射體乃為螺 在其他實施方式中，其亦可為其他等效形狀。例如 旋 9 200908440200908440 IX. Description of the invention: [Technical field to which Miao Ming belongs] The present invention relates to a wireless receiving device, and more particularly to an antenna. « [Prior Art] Mobile wireless communication devices are widely used around the world, such as mobile phones and PDAs used in daily life. When used in different regions, the wireless communication systems in which these mobile wireless communication devices are located use different frequency bandwidths. For example, in Japan, the frequency band used by personal digital mobile phone systems is 810~960MHZ; in Europe and the United States, the frequency bandwidth used by mobile expert group systems is 890~960MHZ 'the frequency bandwidth used by personal communication network systems. 171〇~188〇MHZ, the frequency T used by the personal communication system is 185〇~199〇MHZ. Therefore, how to set a matching antenna in a mobile wireless communication device according to the wireless communication system and the first different frequency bandwidth has become a topic of great concern. The goal is that the most widely used antennas in the industry are planar inverted F antennas and inverted planar inverted F antennas. As shown in Figure i, it is a perspective view of a planar inverted f-antenna. The antenna 1A includes a grounded metal plate ^, a matching body U, a Korean body 2, a feed point pin 17, and a shorting pin 19. There is no feed point hole 111 on the grounded metal plate ^. The matching body 13 is disposed in parallel with the grounding metal plate u, and the matching body 13 is provided with a feeding point 131 and a grounding point 133. The radiator 15 is connected to the feed point 131 and is parallel to the grounded metal plate U. The feed pin 17 is connected to the feed point 131 after passing through the feed hole. Shorting pin 19 connects the grounding point to the grounded metal plate. 6 200908440 Fortunately, the animal body 15, the lightning-feeding technology j ί g .. electric pin 17, the feeding point 131 and the grounding metal plate = line 10 capacitance area. Among them, the electrostatic capacitance is generated mainly by the mutually parallel radiation "the metal plate 11. The matching body 13, the feeding connection Π, the feeding point 131 and the shorting pin 19 constitute the antenna (four) inductance region. The principle of the antenna 10 is shown in Fig. 2. Fig. 2 is an equivalent circuit diagram of the plane* antenna 10. The feed point end (10) is equivalent to the feed point 111' ground end 19〇 equivalent to the ground metal plate η. Capacitance c The inductance L is generated by the inductance region of the sky '0. The inductance L is generated by the inductance region of the antenna 10. Therefore, the capacitance region and the inductance region on the sky and the line ίο constitute a spectral oscillator circuit, and the κ 々 电路 circuit generates a natural frequency. When the natural frequency of the spectrum oscillator circuit is set in the frequency bandwidth of the corresponding wireless communication system, the plane inverted F antenna 10 can normally receive or transmit electromagnetic wave signals. As described above, the natural frequency of the LC resonance circuit is affected by the capacitance region and = The influence of the size of each component of the sensing area. Therefore, by designing the dimensions of the components of the capacitor region and the inductor region, the natural frequency of the planar inverted f antenna can be determined. By adjusting the dimensions of the capacitor region and the components of the inductor region It is also very convenient to adjust the natural frequency of the plane inverted F antenna 1 。. Similarly, as shown in Fig. 3, it is a perspective view of the inverted plane inverted F antenna j 。. Compared with the planar inverted F antenna 1 ,, the radiator 15. The grounding point 133' of the matching body 13, is connected instead of the feeding point 131. Therefore, the natural frequency of determining the inverse plane inverted F antenna 1 即可 can be achieved by the size of each element. The planar inverted F antenna and the inverted planar inverted F antenna require electrostatic capacitance generated between the radiator and the grounded metal plate, so the size of the grounded metal plate is affected by the length of the radiator. Therefore, if the grounding ground is 200908440 to the larger plate It is difficult to place the antenna in a mobile communication device such as a mobile phone. [Summary of the Invention] It is necessary to provide an antenna that is conveniently placed in a mobile communication device. "The antenna includes a grounding plate, a radiator, Matching body, shorting pin and: electric pin 'grounding plate with feed hole' matching body parallel to the grounding plate, with the feeding point and grounding point sighed, the shorting pin connecting the grounding point and connecting Plate 'after passing through the feed pin feed holes feeding point connected concubine, light-weight body is connected match f ligands, and which extends perpendicular to the direction of the ground plate. One such antenna is to place the radiator perpendicular to the ground plane. Therefore, even if the length of the ray body is long, the projected area on the ground plate is not affected, so that the size of the ground plate can be reduced to facilitate placement in a mobile communication device. [Embodiment] In the preferred embodiment, the antenna 21, the matching body 23, and the radiator 25 are shown. Short circuit As shown in Fig. 4, the first antenna 20 includes a ground metal plate pin 27 and a feed pin 29. A feed hole 211 is provided on the grounded metal plate 21. The matching body 23 is disposed flat on the grounded metal plate 21, and is provided with a feeding point 231 and a grounding point 233. The radiator 25 it is connected to the grounding point 233 and extends in a direction perpendicular to the grounded metal plate 21. The shorting pin is connected to the grounding metal plate 21 and the grounding point 233. Feed pin Feed point 231 is connected. In the present embodiment, the radiator 25 that passes through the feed hole 211 and the antenna 20 is in the shape of a spiral of 200908440. Among them, the radiator 25, the short-circuiting pin 27, and the grounding metal plate 21 constitute a capacitance region of the antenna 20, which generates an electric valley between the radiator 25 and the grounding plate 21. The matching body 23, the shorting pin 27 and the feeding pin 29 constitute an inductance region of the antenna. I more clearly shows the original king of the antenna 2, please refer to FIG. 5. FIG. 5 is a schematic diagram of the antenna 20, which is given the same reference numerals as the equivalent elements or equivalent positions in FIG. The capacitance c is generated between the spiral ring on the radiator 25 such as 251, 253, etc., and the ground, that is, the capacitance region is generated, and the inductance [is generated by the inductance region of the antenna 20. The inductor region and the capacitor region together form a π resonant circuit that produces a natural frequency. When the natural frequency of the lc circuit is set in the field frequency bandwidth of the corresponding wireless communication system, the antenna 2G can normally receive or transmit electromagnetic wave signals. Because the frequency of the IX resonant circuit is affected by the capacitance area and the size of the part. (4) Determine the natural frequency of the antenna 2〇 by design or (4) capacitance area = sense & the size of each component, such as the length of the matching body 23, the length of the radiator 25, the gate distance between the spirals, and the short-circuit pin The length of 27, the length of the feed pin 29, and the like.曰大线20 will radiate....... ”v—this", drink bar is poor plate 21, and two are parallel to the grounded metal plate 2 ί. Therefore, even if the radiator is long, it does not affect its The projected area on the grounded metal plate 21 is such that the size of the ground metal plate 21 is such that it is placed in the elongated line δ and is also used in a mobile phone. In the first preferred embodiment antenna 20 The radiator is a snail in other embodiments, which may also be other equivalent shapes. For example, the spin 9 200908440
°圖所不’天線30中的輻射體35為迂回的曲折形 狀，天線30的其他部分與天線2〇相同。天線3〇主要由輕 射體35上的曲折形狀部與接地金屬板之間產生靜電： 容。同天線20-樣’亦可通過設計或者調節各組成部分= 尺寸即達到確定天線3G的固有頻率，如輻㈣MU 等。 又 如圖7所示，天線40中除輕射體45夕卜，其他部分盘 天線相同，輕射體45包括垂直於接地金屬板“設置的 本體451和從本體451上間隔延伸而出且平行於接地金屬 置的複數個枝體453。天線4〇主要由輕射體牦上 枝體53與接地金屬板之間產生靜電電容。同天線加一 樣’亦可通過設計或者調節各組成部分的尺寸即達到確定 天線40的固有頻率，如輻射體45的長产等。 在第一較佳實施方式天線2〇中，輪又射體25與匹配體 23的接地點233連接，在其他實施方式中 =饋電點連接。如圖δ所示，天線5〇的刪5;與 =體53的饋電點531連接，並且轎射體Μ與接地金屬 =二，天線5〇的其他部分與天線2〇相同。天線5〇 20= ? 55與接地金屬板之間產生靜電電容。同天線 7 ’、可通過设計或者調節各組成部分的尺寸即達到 定天線50的固有頻率，如輻射體的長度等。 ㈣Γ匹：體、短路接腳和饋電接腳等的長度亦會影響天 =:射的固有頻率。因此，可根據天線的接收/發射 的口有頻率，或者設置天線的空間的大小，將天線中的匹 10 200908440 =短路接腳或者饋電接腳十的部分或 蝴大' 迁回的曲折形狀或者其他可達_:置為螺 狀。例如：如圖9所- ”他J這和樣效果的形 螺旋狀；如圖10所-天線60中將短路接腳67設置為 回的曲折形狀。 天線7G中將短路接腳^設置為迁 【圖式簡單說明】 圖1係先前技術平面倒置F天線的The radiator 35 in the antenna 30 is a meandering shape, and the other portion of the antenna 30 is the same as the antenna 2A. The antenna 3A mainly generates static electricity between the meandering portion on the light projecting body 35 and the grounded metal plate. The antenna 20-like can also be used to determine the natural frequency of the antenna 3G by designing or adjusting the components = size, such as the spoke (four) MU. As shown in FIG. 7, in addition to the light projecting body 45, the other part of the disk antenna is the same, and the light projecting body 45 includes a body 451 disposed perpendicular to the grounded metal plate and extending from the body 451 and parallel. a plurality of branches 453 disposed on the grounding metal. The antenna 4〇 mainly generates electrostatic capacitance between the light body and the grounding plate 53 and the grounded metal plate. The same as the antenna plus ' can also design or adjust the size of each component The natural frequency of the antenna 40 is determined, such as the long life of the radiator 45. In the antenna 2A of the first preferred embodiment, the wheel re-emitter 25 is connected to the grounding point 233 of the matching body 23, in other embodiments = The feed point is connected. As shown in Fig. δ, the antenna 5〇 is deleted 5; the feed point 531 of the body 53 is connected, and the car body Μ and the ground metal=2, the other part of the antenna 5〇 and the antenna 2〇 The same is true. The antenna 5 〇 20 = ? 55 and the grounded metal plate to generate electrostatic capacitance. The same antenna 7 ', can be designed or adjusted the size of each component to reach the natural frequency of the fixed antenna 50, such as the length of the radiator, etc. (4) Γ :: body, short-circuit pin and The length of the feed pin, etc. will also affect the natural frequency of the sky =: the frequency of the antenna can be received according to the frequency of the receiving/transmitting port of the antenna, or the size of the space of the antenna can be set. The foot or the part of the feeding pin 10 or the large zigzag shape of the butterfly's move back or other reachable _: set to a spiral shape. For example: as shown in Figure 9 - "He J and the shape of the spiral shape; In the ten-antenna 60, the short-circuit pin 67 is set to a meandering shape. In the antenna 7G, the short-circuit pin ^ is set to move. [Simple description of the drawing] FIG. 1 is a prior art planar inverted F antenna.
圖2係圖ί φ & & / , M 到置F天線的等效電路圖 =係先前技術反平面倒置F天線的立體圖 圖4係第一較佳實施方式天線的立體圖。 圖5係圖4種中天線的原理圖。 圖6係第二較佳實施方式天線的立體圖。 圖7係第三較佳實施方式天線的立體圖。 圖8係第四較佳實施方式天線的立體圖。 圖9係第五較佳實施方式天線的立體圖。 圖10係第六較佳實施方式天線的立體圖。 接地金屬板 11 匹配體 13 接地點 133 饋點接腳 17 饋點端 180 【先前技術主要元件符號說 天線 10 饋點孔、 111 饋電點 131 輻射體 15 短路接腳 19 11 200908440 接地端 190 天線 10' 饋電點 13Γ 接地點 133 輻射體 15' 【本發明主要元件符號說明】 天線 20 金屬板 21 饋電孔 211 匹配體 23 饋電點 231 接地點 233 輻射體 25 短路接腳 27 饋電接腳 29 天線 30 輻射體 35 天線 40 接地金屬板 41 輻射體 45 本體 451 枝體 453 天線 50 接地金屬板 51 匹配體 53 饋電點 531 輻射體 55 天線 60 短路接腳 67 天線 70 短路接腳 77 122 is an equivalent circuit diagram of the φ && / , M to F antenna = a perspective view of a prior art anti-plane inverted F antenna. FIG. 4 is a perspective view of the antenna of the first preferred embodiment. Figure 5 is a schematic diagram of the antenna of Figure 4. Figure 6 is a perspective view of the antenna of the second preferred embodiment. Figure 7 is a perspective view of the antenna of the third preferred embodiment. Figure 8 is a perspective view of an antenna of a fourth preferred embodiment. Figure 9 is a perspective view of an antenna of a fifth preferred embodiment. Figure 10 is a perspective view of the antenna of the sixth preferred embodiment. Grounding metal plate 11 Matching body 13 Grounding point 133 Feeding point pin 17 Feeding point end 180 [Prior art main component symbol antenna 10 feeding point hole, 111 feeding point 131 radiator 15 shorting pin 19 11 200908440 Grounding terminal 190 Antenna 10' Feeding point 13Γ Grounding point 133 Radiator 15' [Description of main components of the invention] Antenna 20 Metal plate 21 Feed hole 211 Matching body 23 Feed point 231 Grounding point 233 Radiator 25 Shorting pin 27 Feeding Foot 29 Antenna 30 Radiator 35 Antenna 40 Grounded metal plate 41 Radiator 45 Body 451 Branch 453 Antenna 50 Grounded metal plate 51 Matching body 53 Feed point 531 Radiator 55 Antenna 60 Shorting pin 67 Antenna 70 Shorting pin 77 12