201134012 六、發明說明： 【發明所屬之技術領域】 本發明係關於_ 置，特別是一種具有 天線之電子裝置。 種單極天線及具有單極天線之電子褒 折疊狀之結構之單極天線及具有單極 【先前技術】 統進步’市面上的電子產品利用無線通訊系 '' 傳輸的方式已經越來越普及。同時現今之電子產品 亦具有厚度限制及降低成本之要求，因此對於特別輕薄的 電子產品裝置而言，更需要一種特殊的傳輸天線，能傳輸 特殊的頻段且能配合電子產品之形狀。如此—來，傳統的 天線可能無法符合需求。 此外’為了避免干擾到天線之傳輸，電子產品必須要 預留「淨空區域」來設置天線。以天線設計來說，一支操 作頻率在9〇〇ΜΗζ的天線，其長度約為32公分。亦即電 子產品必須預留超過3.2公分來設置天線。如此一來’會 增加電子產品之長度’對於現今的電子產品造成設計上的 困擾。 因此，需要發明出一種天線以解決先前技術之缺失 【發明内容】 201134012 本發明之主要目的係在提供一種具有折疊狀之結構之 單極天線。 本發明之另一主要目的係在提供一種具有單極天線之 電子裝置。 為連成上述之目的，本發明之單極天線係設置於基座 上以形成折疊狀之天線結構。單極天線包括第一輻射區 域、第二輻射區域、第三輻射區域及饋入點。第一輻射區 域用以傳輸高頻訊號。第二輻射區域係與第一輻射區域相 # 接’用以傳輸一低頻訊號。第二輻射區域係設置於基座上 之第一平面、第二平面及第三平面。第三輻射區域係與第 二輻射區域相接，並設置於基座上之第二平面及第三平 面。饋入點係與第一輻射區域及第二輻射區域相接，用以 饋入電性訊號。 本發明之具有單極天線之電子裝置，包括基座、無線 訊號模組及單極天線。基座包括至少第一平面、第二平面 及第三平面。無線訊號模組係設置於基座上，用以傳輸無 Φ 線訊號。單極天線係設置於基座上以形成折疊狀之天線結 構。單極天線包括第一輻射區域、第二輻射區域、第三輻 射區域及饋入點。第一輻射區域用以傳輸高頻訊號。第二 輻射區域係與第一輻射區域相接，用以傳輸一低頻訊號。 第二輻射區域係設置於基座上之第一平面、第二平面及第 三平面。第三輻射區域係與第二輻射區域相接，並設置於 基座上之第二平面及第三平面。饋入點係與第一輻射區域 及第二輻射區域相接，用以饋入電性訊號。 5 201134012 【實施方式】 的、特徵和優點能更明顯 實施例，並配合所附圖式， 為讓本發明之上述和其他目 易f董’下文特舉出本發明之具體 作詳細說明如下。 言=同時參考圖1A]B關於本發明單極天線之示意 ，’其中圖1A係本發明單極天線之正面示意圖，圖职系 本發明單極天線之反面示意圖。 本發明之單極天線10係為一折疊狀之天線結構，並設 置，基座20上。基座20可為安裝電子元件或是印刷電路 板等裝置之基座20，基座20之形狀可視需求而有不同設 计在本發明之一實施例中，基座20至少包括第一平面 21、第二平面22、第三平面23及第四平面24 ,但本發明 並不限於此。單極天線1〇係利用雷射蝕刻之方式以設置於 基座20上，基座2〇係由一種適合雷射钱刻製程之材質製 成’係藉由鈀離子將單極天線10蝕刻於基座2〇上。由於 此银刻製程之技術已經被相關技術之人員所熟悉且並非本 發明之重點所在，故在此不再贅述。 單極天線10包括第一輻射區域31、第二輻射區域32、 第三輻射區域33與饋入點F ’第一輻射區域31、第二輻射區 域32及第三輻射區域33可透過由饋入點F饋入之電流以激 發輻射能量。其中第一輻射區域31係與第二輻射區域32互 相連接’第二輻射區域32係與第三輻射區域33互相連接， 以形成類似迴路式天線之結構，並且設置於基座20之不同 平面上’以形成折疊狀之天線結構。當饋入點F饋入電性訊 號時’單極天線1〇可將電性訊號經由此第一輻射區域31、 201134012 第二輻射區域32及第三輻射區域33以形成訊號迴路，以產 生疋里之磁場轄射能量。 第一輻射區域31係設置於基座20之第一平面21上，並 且可根據基座20之形狀做寬度的調整。第一輻射區域31係 用以傳輸高頻之頻段，如1800 MHz到2100 MHz之頻段。 第二輻射區域32係與第一輻射區域31互相連接，並設 置於基座20之第一平面21、第二平面22及第三平面23上。 在本發明之一實施例中，第二輻射區域32包括第一區域 • 321、第二區域322、第三區域323及第四區域324。第一區 域321係直接與第一輻射區域31連接，並且設置於基座2〇 之第一平面21上。第二區域322係實質上與第一區域321垂 直相接’並自第一平面21延伸至第二平面22。第三區域323 係實質上與第二區域322垂直相接，並同時設置於第二平面 22及第三平面23上。第四區域324係與第三區域323相接， 並設置於第二平面22上。當饋入電性訊號時，單極天線1〇 係藉由第一區域321、第二區域322、第三區域323到第四區 • 域324之長度即可傳輸低頻之頻段，如850 MHz到950 MHz 之頻段。 第三輻射區域33係與第二輻射區域32相接，並具有彎 折處，以設置於第一平面21及第二平面22上。需注意的是， 上述第一輻射區域31、第二輻射區域32及第三輻射區域33 在圖1A-1B中所示之形狀僅為示意，本發明並不以此為限。 在單極天線10上更包括一饋入點F，係電性連接一條饋 入線（圖未式）’用以饋入電性訊號。饋入線可為wRFCable 等電纜，但本發明並不以此為限。在本發明之一實施例中， 201134012 饋入點F係與第一輻射區域31及第二輻射區域32設置於基 座20之不同平面上。饋入點F係設置於基座2〇之第四平面24 上’與第一輕射區域31及第二輻射區域32之間係經由基座 20之孔洞25互相連接。當電性訊號經由饋入點F饋入時，係 藉由第一輕射區域31、第二輻射區域32及第三輻射區域33 之結構，使得單極天線1〇得以激發輻射能量。 需注意的是’基座20之形狀並不以圖1A_1B所示之形狀 為限，同時第-輻射區域31、第二輻射區域32及第三輻射 區域33之形狀亦可配合基座2〇之形狀而做改變，本發明並 不以圖1A-1B中所示之形狀為限。 接著請參考圖2係依據圖丨冬汨，顯示其在不同頻率之 dB值。 由圖2中可知’單極天線1〇藉由上述之結構，可以傳輸 850 MHz到950 MHz左右的頻段以及18〇〇 MHz到21〇〇 MHz 左右的頻段’可符合-般手機系統所需的傳輸頻段，亦可 用於其他之通訊傳輸之用。 接著參考圖3係依據圖ία-IB，顯示其在不同頻率下之 史密斯圖。 由圖3可得知’單極天線1G在史密斯圖中所表現出之輸 入阻抗之軌跡較接近史密斯圖之中心點，其反射係數 (Return Loss)較小，因此具有較佳阻抗特性。 著參考圖4係依據圖1A_1B，顯示其在不同頻率下之 效率圖。 201134012 由圖4可得知’藉由上述單極天線10之結構，可達到30〇/〇 以上之傳輸效率。 接著請參考圖5係依據圖1A-1B，顯示其在不同頻帶下 之TRP和US效能圖。 其中總輻射功率（Total Radiated Power，TRP )是指單 極天線10在立體全方向上對外傳送訊號之輻射功率的平均 值，相對於峰值有效輻射功率（Effective Radiated Power， ERP )和傳導發射功率，TRP不僅考慮了單極天線1 〇的匹配 • 因素，而且是在三維空間上’更全面地衡量單極天線1〇的 傳送訊號之情況。 而總全向靈敏度（Total Isotropic Sensitivity，TIS)是 指單極天線10在立體全方向上接收訊號的接收靈敏度的平 均值。TIS既考慮了單極天線10的匹配因素，也考慮了在三 維空間的單極天線10的接收性能，因此能夠更全面地衡量 單極天線10的接收訊號之能力。 一般而言，通常要求單極天線10的TRP值越大越好， Φ TIS值越小越好。因此由圖5可知，此單極天線10在全球行 動通 sfl 系統（Global System for Mobile Communications， GSM)之頻段下之TRP值為28dBm，數位通信系統（Digital Communication System，DCS)及個人通訊服務（personai Communication Service’ PCS)之頻段下之 TRP 值為 26dBm， 通用移動通訊系統（Universal Mobile Telecommunications System，UMTS)之不同頻段下之TRP值為l9dBm，而TIS 值皆為-104dBm。 201134012 最後，請參考圖6關於本發明之電子裝置的系統方塊 圖。 在本發明之-實施例中，電子裳置4〇可為智慧型手機 或是PDA等行動裝置，但本發明並不以此為限。如圖6所 示，本發明之電子裝置40包括單極天線1()、基㈣及無線 訊號模組41。單極天線1G與無線訊號模㈣皆設置於基座 20上。電子裝置40可利用饋入線(圖未示)饋入到單極天線 1〇並與無線城模組4i電性連接，i^由域訊號模組41 來處理單極天線10之訊號，例如發射或接收訊號。如此一 來，電子裝置40即可以藉由單極天線10接收或者傳送無線 訊號到其他的裝置（圖未示），以達到無線通訊的目的。 由上述之描述可知，本發明之單極天線10可以縮小設 置在基座20上的範圍’亦可保持其傳輸之效能，能解決先 前技術中所遇見的缺失。 綜上所陳’本發明無論就目的、手段及功效，在在均 顯示其迥異於習知技術之特徵，懇請貴審查委員明察， 早曰賜准專利，俾嘉惠社會，實感德便。惟應注意的是， 上述諸多實施例僅係為了便於說明而舉例而已，本發明所 主張之權利範圍自應以申請專利範圍所述為準，而非僅限 於上述實施例。 【圖式簡單說明】 圖1A係本發明單極天線之正面示意圖。 圖1B係本發明單極天線之反面示意圖。 201134012 圖2係依據圖1A-1B，顯示其在不同頻率之dB值。 圖3係依據圖1A-1B，顯示其在不同頻率下之史密斯圖。 圖4係依據圖1A-1B，顯示其在不同頻率下之效率圖。 圖5係依據圖1A-1B，顯示其在不同頻帶下之TRP和TIS效能 圖。 圖6係為本發明之電子裝置的系統方塊圖。 【主要元件符號說明】 •單極天線10 基座20 第一平面21 第二平面22 第三平面23 第四平面24 孔洞25 φ 第一輻射區域31 第二輻射區域32 第一區域321 第二區域322 第三區域323 第四區域324 第三輻射區域33 電子裝置40 201134012201134012 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to an apparatus, and more particularly to an electronic device having an antenna. Single-pole antennas and monopole antennas with monopole antennas and electronically folded structures and monopoles [Prior Art] The advancement of 'electronic products on the market using wireless communication systems' has become more and more popular. . At the same time, today's electronic products also have thickness limits and cost reduction requirements. Therefore, for particularly thin electronic devices, a special transmission antenna is needed, which can transmit a special frequency band and can match the shape of an electronic product. As such, traditional antennas may not meet the requirements. In addition, in order to avoid interference with the transmission of the antenna, the electronic product must reserve a "clear area" to set the antenna. In terms of antenna design, an antenna with an operating frequency of 9 inches has a length of about 32 cm. That is, the electronic product must be reserved for more than 3.2 cm to set up the antenna. As a result, 'the increase in the length of electronic products' has caused design problems for today's electronic products. Accordingly, there is a need to invent an antenna to solve the deficiencies of the prior art. SUMMARY OF THE INVENTION The main object of the present invention is to provide a monopole antenna having a folded structure. Another main object of the present invention is to provide an electronic device having a monopole antenna. For the purposes described above, the monopole antenna of the present invention is disposed on a pedestal to form a folded antenna structure. The monopole antenna includes a first radiation region, a second radiation region, a third radiation region, and a feed point. The first radiating area is used to transmit high frequency signals. The second radiating region is coupled to the first radiating region for transmitting a low frequency signal. The second radiating region is disposed on the first plane, the second plane, and the third plane on the base. The third radiating region is in contact with the second radiating region and is disposed on the second plane and the third plane on the base. The feed point is connected to the first radiation area and the second radiation area for feeding electrical signals. The electronic device with a monopole antenna of the present invention comprises a base, a wireless signal module and a monopole antenna. The pedestal includes at least a first plane, a second plane, and a third plane. The wireless signal module is disposed on the base for transmitting no Φ line signals. The monopole antenna is disposed on the base to form a folded antenna structure. The monopole antenna includes a first radiating region, a second radiating region, a third radiating region, and a feed point. The first radiation area is used to transmit high frequency signals. The second radiating region is coupled to the first radiating region for transmitting a low frequency signal. The second radiating region is disposed on the first plane, the second plane, and the third plane on the base. The third radiating region is in contact with the second radiating region and is disposed on the second plane and the third plane on the base. The feed point is connected to the first radiation area and the second radiation area for feeding electrical signals. 5 201134012 [Embodiment] The features and advantages of the present invention are set forth in the Detailed Description of the Drawings. Referring to Fig. 1A]B, there is shown a schematic view of a monopole antenna of the present invention, wherein Fig. 1A is a front view of a monopole antenna of the present invention, and Fig. 1A is a schematic view of the reverse side of the monopole antenna of the present invention. The monopole antenna 10 of the present invention is a folded antenna structure and is disposed on the base 20. The base 20 can be a base 20 for mounting electronic components or devices such as printed circuit boards. The shape of the base 20 can be differently designed according to requirements. In an embodiment of the present invention, the base 20 includes at least a first plane 21 The second plane 22, the third plane 23, and the fourth plane 24, but the invention is not limited thereto. The monopole antenna 1 is mounted on the susceptor 20 by laser etching, and the susceptor 2 is made of a material suitable for the laser engraving process. The monopole antenna 10 is etched by palladium ions. The base 2 is attached. Since the technology of the silver engraving process has been familiar to those skilled in the relevant art and is not the focus of the present invention, it will not be described herein. The monopole antenna 10 includes a first radiating region 31, a second radiating region 32, a third radiating region 33, and a feeding point F'. The first radiating region 31, the second radiating region 32, and the third radiating region 33 are permeable. Point F feeds current to excite radiant energy. The first radiating region 31 is interconnected with the second radiating region 32. The second radiating region 32 is interconnected with the third radiating region 33 to form a structure similar to a loop antenna, and is disposed on different planes of the base 20. 'To form a folded antenna structure. When the feed point F is fed with an electrical signal, the 'monopole antenna 1' can pass the electrical signal through the first radiation area 31, the 201134012 second radiation area 32 and the third radiation area 33 to form a signal loop to generate a circuit. The magnetic field modulates the energy. The first radiating region 31 is disposed on the first plane 21 of the susceptor 20, and can be adjusted in width according to the shape of the susceptor 20. The first radiating area 31 is used to transmit high frequency bands, such as the frequency band of 1800 MHz to 2100 MHz. The second radiating region 32 is interconnected with the first radiating region 31 and is disposed on the first plane 21, the second plane 22, and the third plane 23 of the susceptor 20. In one embodiment of the invention, the second radiant region 32 includes a first region 321 , a second region 322 , a third region 323 , and a fourth region 324 . The first region 321 is directly connected to the first radiating region 31 and is disposed on the first plane 21 of the susceptor 2A. The second region 322 is substantially perpendicular to the first region 321 and extends from the first plane 21 to the second plane 22. The third region 323 is substantially perpendicular to the second region 322 and is disposed on the second plane 22 and the third plane 23 at the same time. The fourth area 324 is in contact with the third area 323 and is disposed on the second plane 22. When the electrical signal is fed, the monopole antenna 1 transmits the low frequency band, such as 850 MHz to 950, by the length of the first region 321, the second region 322, the third region 323, and the fourth region 324. The frequency band of MHz. The third radiating region 33 is in contact with the second radiating region 32 and has a bent portion to be disposed on the first plane 21 and the second plane 22. It should be noted that the shapes of the first radiation region 31, the second radiation region 32, and the third radiation region 33 shown in FIGS. 1A-1B are only schematic, and the invention is not limited thereto. The feed point F is further included on the monopole antenna 10, and is electrically connected to a feed line (not shown) for feeding an electrical signal. The feed line may be a cable such as wRFCable, but the invention is not limited thereto. In one embodiment of the present invention, the 201134012 feed point F is disposed on a different plane of the base 20 than the first radiating region 31 and the second radiating region 32. The feed point F is disposed on the fourth plane 24 of the base 2' and is interconnected with the first light-emitting area 31 and the second radiation area 32 via the hole 25 of the base 20. When the electrical signal is fed through the feed point F, the monopole antenna 1 is excited by the structure of the first light-emitting region 31, the second radiation region 32, and the third radiation region 33. It should be noted that the shape of the susceptor 20 is not limited to the shape shown in FIG. 1A_1B, and the shapes of the first radiation region 31, the second radiation region 32, and the third radiation region 33 may also match the susceptor 2 The shape is changed, and the present invention is not limited to the shape shown in Figs. 1A-1B. Next, please refer to Figure 2, which shows the dB value at different frequencies according to the figure. As can be seen from Fig. 2, the monopole antenna 1 can transmit a frequency band of about 850 MHz to 950 MHz and a frequency band of about 18 〇〇 to 21 〇〇 MHz, which is compatible with a mobile phone system. The transmission band can also be used for other communication transmissions. Referring next to Figure 3, the Smith chart at different frequencies is shown in accordance with Figure ία-IB. It can be seen from Fig. 3 that the trajectory of the input impedance exhibited by the monopole antenna 1G in the Smith chart is closer to the center point of the Smith chart, and the reflection loss (Return Loss) is smaller, so that it has better impedance characteristics. Referring to Figure 4, the efficiency maps at different frequencies are shown in accordance with Figures 1A-1B. 201134012 It can be seen from Fig. 4 that the transmission efficiency of 30 〇/〇 or more can be achieved by the structure of the monopole antenna 10 described above. Referring now to Figure 5, the TRP and US performance diagrams for different frequency bands are shown in accordance with Figures 1A-1B. The total radiated power (TRP) refers to the average value of the radiated power of the monopole antenna 10 transmitting signals in the stereo omnidirectional direction, relative to the peak effective radiated power (ERP) and the conducted transmit power. TRP not only considers the matching factor of the monopole antenna, but also measures the transmission signal of the monopole antenna in a more comprehensive way in three dimensions. The Total Isotropic Sensitivity (TIS) refers to the average value of the receiving sensitivity of the monopole antenna 10 to receive signals in the stereo omnidirectional direction. The TIS considers the matching factor of the monopole antenna 10 and the reception performance of the monopole antenna 10 in the three-dimensional space, so that the ability of the monopole antenna 10 to receive signals can be more comprehensively measured. In general, it is generally required that the TRP value of the monopole antenna 10 is as large as possible, and the smaller the Φ TIS value, the better. Therefore, as can be seen from FIG. 5, the monopole antenna 10 has a TRP value of 28 dBm in the frequency band of the Global System for Mobile Communications (GSM), a digital communication system (Digital Communication System, DCS), and a personal communication service ( The TRP value in the band of personai Communication Service' PCS) is 26dBm, and the TRP value in the different frequency bands of the Universal Mobile Telecommunications System (UMTS) is l9dBm, and the TIS value is -104dBm. Finally, please refer to Fig. 6 for a block diagram of the system of the electronic device of the present invention. In the embodiment of the present invention, the electronic device 4 can be a mobile device such as a smart phone or a PDA, but the invention is not limited thereto. As shown in FIG. 6, the electronic device 40 of the present invention includes a monopole antenna 1(), a base (4), and a wireless signal module 41. Both the monopole antenna 1G and the wireless signal module (4) are disposed on the base 20. The electronic device 40 can be fed into the monopole antenna 1〇 by using a feed line (not shown) and electrically connected to the wireless city module 4i, and the signal of the monopole antenna 10 can be processed by the domain signal module 41, for example, transmitting. Or receive a signal. In this way, the electronic device 40 can receive or transmit wireless signals to other devices (not shown) through the monopole antenna 10 for wireless communication purposes. As can be seen from the above description, the monopole antenna 10 of the present invention can reduce the range set on the susceptor 20 and maintain its transmission efficiency, which can solve the defects encountered in the prior art. In summary, the invention is characterized by its purpose, means and efficacy, and it is different from the characteristics of the prior art. You are requested to review the examinations, and grant the patents as early as possible. It is to be noted that the various embodiments described above are intended to be illustrative only, and the scope of the invention is intended to be limited by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is a front elevational view of a monopole antenna of the present invention. Figure 1B is a schematic illustration of the reverse side of a monopole antenna of the present invention. 201134012 Figure 2 shows the dB values at different frequencies according to Figures 1A-1B. Figure 3 shows a Smith chart at different frequencies in accordance with Figures 1A-1B. Figure 4 is a graph showing the efficiency at different frequencies in accordance with Figures 1A-1B. Figure 5 is a graph showing TRP and TIS performance for different frequency bands in accordance with Figures 1A-1B. 6 is a system block diagram of an electronic device of the present invention. [Major component symbol description] • Monopole antenna 10 Base 20 First plane 21 Second plane 22 Third plane 23 Fourth plane 24 Hole 25 φ First radiation area 31 Second radiation area 32 First area 321 Second area 322 third area 323 fourth area 324 third radiation area 33 electronic device 40 201134012
無線訊號模組41 饋入點FWireless signal module 41 feed point F