200805783 玖、發明說明： 【發明所屬之技術領域】 本餐明疋有關於一種天線結構’且特別是有關於一種電磁遮蔽 空腔整合式平面天線結構。 【先前技術】 近年來無線通訊的廣泛應用，舉凡生活中的手機行動通訊、藍 芽傳輸’工作上的無線網路環境，交通上的衛星定位系統以及高速 ® 么路電子收費系統…等等。早已不知不覺中成為人們身活中不可或 缺的一種技術。早期手機通訊還未問市時，透過電話聯絡只能於家 中、公司或公共電話等固定環境，非但使用不便，完整的電話網路 系統架設成本及複雜度也非常可觀。現今的ADSL到府雖然傳輸速 度已可滿足大部分使用者，但對商務人士來說能然有著必須在定點 下使用之困境’因此鱗祕的發展使得商務人士只需在有提供無 線網路之地點打開筆記型電腦或個人數位化助理（知魏！ • Dlgltal Assistant，PDA)即可隨時上網收發電子郵件等。倘若周 遭缺少無線網路環境，亦可_ 3G網路卡，在手機訊號涵蓋地點 高速上網。隨著行動網路的涵蓋率提升汽車通訊也被日漸重視，近 年來衛星定位與即時路況的整合，使得衛星導航智慧性及便利性大 =提升。此外數位冑視、數位廣播、汽車防盜、高速公路電子收費… 等等，都與無線通訊有不可分割的關係。 々、、’、不"上述各項應用行動電話、無線網路、衛星定位、電子收費… 等無線通箱S，均係藉由天線以鱗方式進行資料的傳輸，若沒 5 200805783 有天線，將無法發射或接收資料，因此天線的角色在無線通訊技術 來說，是不可或缺的一環。 隨著電子產品走向方輕薄、便攜帶方便等需求，使得天線設計 亦需朝向輕薄化設計。一旦天線體積變小天線增益亦會變低，例如 低溫陶瓷共燒（Low Temperature Co-fired Ceramic，LTCC)之晶 片型天線(Chip Antennae)，使得傳輸距離大幅縮短無法滿足使用 著的要求。為了克服此問題，市面上之電子產品在天線後端往往會200805783 玖, invention description: [Technical field to which the invention pertains] The present specification relates to an antenna structure' and particularly relates to an electromagnetic shielding cavity integrated planar antenna structure. [Prior Art] In recent years, wireless communication has been widely used in mobile mobile communication, Bluetooth transmission, wireless network environment at work, satellite positioning system for transportation, and high-speed ® road electronic charging system. It has long been unconsciously a technology that is indispensable in people's lives. When the early mobile communication was not asked, the telephone contact could only be in a fixed environment such as home, company or public telephone. It was not only inconvenient to use, but also the cost and complexity of the complete telephone network system installation was very impressive. Today's ADSL to the government has a transmission speed that can satisfy most users, but for business people, it has the plight of having to use it at a fixed point. Therefore, the development of the scale makes it necessary for business people to provide wireless networks. Open the laptop or personal digital assistant (Welcome! • Dlgltal Assistant, PDA) to send and receive emails at any time. If there is a lack of wireless network environment around the world, you can also use the _ 3G network card to access the high-speed Internet at the location covered by the mobile phone signal. As the coverage of mobile networks increases, automotive communications are also increasingly valued. In recent years, the integration of satellite positioning and real-time traffic conditions has made satellite navigation smart and convenient. In addition, digital contempt, digital broadcasting, car burglary, highway electronic charging, etc., are inseparable from wireless communication. 々,, ',不不“; the above-mentioned various applications such as mobile phone, wireless network, satellite positioning, electronic charging, etc., all of which are transmitted by means of antennas in scales, if not 5 200805783 It will not be able to transmit or receive data, so the role of the antenna is an integral part of wireless communication technology. With the demand for electronic products to be thin and portable, the antenna design needs to be designed to be light and thin. As the antenna size becomes smaller, the antenna gain also becomes lower. For example, the Low Temperature Co-fired Ceramic (LTCC) chip antenna antenna (Chip Antennae) makes the transmission distance greatly shortened and cannot meet the requirements for use. In order to overcome this problem, the electronic products on the market tend to be at the back end of the antenna.
加上一放大電路，已補足微小型天線增益過低之問題。藉此達到體 積輕薄短小，效能不減之需求。 雖然放大電料確纽善微小型天輯料足之航，但卻會 產生電磁姉干擾，設計放錢料都會加上—電磁遮蔽罩， 來抑制電磁輻射干擾之問題。 本^明提供-種電麵蔽空腔整合式平面天線結構，天線結構 本身即可提供電麵蔽效果，有效抑制電磁姉僧之問題。於產 品設計上可節省電磁遮蔽罩設置之成本。 【發明内容】 本^明之主要目的’在於提供—種電磁遮蔽空腔整合式平面天線結 構，其係可提供電魏蔽效果’崎顧磁_干擾，確保電路可正 常工作。 構 本i明之另—目的’在於提供_種電磁遮蔽空腔整合式平面天線結 ’其係於提供電磁《效料，可_保有相同之天線尺寸大小。 6 200805783 本發明之再一目的，在於提供一種電磁遮蔽空腔整合式平面天線結 構，其係可提供電磁遮蔽效果，可除去電路端購置電磁遮蔽罩之成本。 本考X月之再目的，在於φς;供一種電磁遮蔽空腔整合式平面天線結 構’其係可提供電磁遮蔽效果，可將電路置於天線中以減少整體厚度。 本發明電磁遮蔽空腔整合式平面天線結構，由上而下可分為三層 之架構，其係包含有一平面式天線輻射面、一接地面及一電磁遮蔽空 腔。第一層天線之輻射面有一饋入點，饋入點經饋入針連接至第二層 接地面，再由饋入針穿越接地面連接至第三層電磁遮蔽空腔内之天線 輸出端。 關於本發明之優點與特色可藉由以下的發明詳述及所附圖示得到 進一步的瞭解。 【實施方式】 茲為使貴審查委員對本發明之結構特徵及所達成之功效有更進一 步之瞭解與認識，謹佐以較佳之實例及配合詳細之說明，說明如後： 請參閱第-圖、第二Α圖、第二Β圖與第二㈣，其係為本發明實施 例之立體圖、上視圖、下視圖與立體分解圖：如圖所示，本發明之電 磁遮蔽空腔整合辭面天線麟，係將電磁遮蔽空腔整合人天線結構 中，本例係財©式天線錄·，由上町可分為三層之架構，其 係包含有-平面式天線輻射紐〇，天線介f 12G，—接地面伽及一電 磁遮蔽空腔160。第-層天線之韓射面n〇有一饋入點⑽，經饋入針15〇 7 200805783 連接至第二層接地面130，再經由饋入針15〇穿越接地面13〇，連接至第 二層電磁遮蔽空腔160之天線輸出端，此處電磁遮蔽空腔，上方、 鈾方後方、左方及右方均為平面式天線之接地面13〇，與電磁遮蔽罩 之結構相同故可達到電磁遮蔽之效果。 饋入點140為標準平面式天線之饋入型式，饋入針15〇一端連接平面 疋天線之輻射面110 ’另一端穿越接地面連接至電磁遮蔽空腔16〇的 天線輸出端，以將輻射面110所接收訊號導入電磁遮蔽空腔16〇天線輸 出鳊’再藉由共平面導波管（C〇-pianar Waveguide)傳輸線、微帶線 (Micro-strip)傳輸線等各型印刷電路板傳輸線或同軸電纜傳送至率 波器、低雜訊放大器等進行後續處理。或者將功率放大器放大之訊號， 經由各式傳輸線，以第一圖中饋入針15〇底端將訊號傳送至天線輻射面 no將訊號發射傳輸。在輻射面110與接地面130之間係以陶瓷(Ceramic) 為天線介質120 ’其介電係數(Dielectric Constant)為20，亦可以使 用更高介電係數之材料作為介質以縮小天線尺寸。 由第二A圖可知，本發明之外觀上視圖與標準平面式天線相同，外 觀並無特殊之處。但由第二圖B、第二圖c圖可知，天線介質12〇底部包 含一電磁遮蔽空腔160經由饋入針150將輻射面11〇之訊號導入給射頻 前端電路使用。藉此整合電磁遮蔽空腔16〇與平面式天線。本例係以全 球衛星定位系統之接收天線來做說明，其中輻射面之大小為21· 54釐米 乘21.54釐米兩邊截角長度為4· 27釐米，由第三A圖可知，本例電磁遮 酸二腔整合式平面天線結構之反射損失（Return Loss)於157(MHz至 8 200805783 1580MHz均於-8dB以下。由第三賙可知’本例電磁遮蔽空腔整合式平 面天線結構之增益（Gain)於1575MHz為5dBi以上。 综合以上所述，本發明之電磁遮蔽空腔整合式平面天線結構相較— 般天線擁有不相上下之效能，且於不增加尺寸τ可有效抑制電磁輕射 干擾，可有效降低商品設計購置電磁遮蔽罩之成本。 故本發明係實為一具有新穎性、進步性及可供產業利用者，應符合 我國專利法所規定之專利申請要件無疑，爰依法提出發明專利申請。 准以上所述者，僅為本發明之一較佳實例而已，並非用來限定本發明 貝苑之範圍，舉凡依本發明申請專利範圍所述之應用、構造、精神所 為之變化，均應包括於本發明之巾請專利範圍内。Adding an amplifying circuit has made up for the problem that the micro antenna gain is too low. In this way, the volume is short and the performance is not reduced. Although the amplified electric material is indeed good for the small and small days, it will generate electromagnetic interference, and the design of the money will be added with an electromagnetic shielding to suppress the electromagnetic interference. The present invention provides an electric planar mask cavity integrated planar antenna structure, and the antenna structure itself can provide an electric surface masking effect, effectively suppressing the electromagnetic enthalpy problem. The cost of the electromagnetic mask setting can be saved in product design. SUMMARY OF THE INVENTION The main object of the present invention is to provide an electromagnetic shielding cavity integrated planar antenna structure, which can provide an electrical weave effect, and can ensure normal operation of the circuit. The other purpose of the invention is to provide an electromagnetic shielding cavity integrated planar antenna junction, which is provided with an electromagnetic "effect material, which can retain the same antenna size. 6 200805783 A further object of the present invention is to provide an electromagnetically shielded cavity integrated planar antenna structure that provides an electromagnetic shielding effect that eliminates the cost of purchasing an electromagnetic shield at the circuit end. The re-purpose of this test X month is φς; for an electromagnetic shielding cavity integrated planar antenna structure', which provides electromagnetic shielding effect, the circuit can be placed in the antenna to reduce the overall thickness. The electromagnetic shielding cavity integrated planar antenna structure of the present invention can be divided into three layers from top to bottom, and comprises a planar antenna radiating surface, a grounding surface and an electromagnetic shielding cavity. The radiating surface of the first layer antenna has a feeding point, and the feeding point is connected to the second layer grounding surface via the feeding pin, and then the feeding pin passes through the grounding surface to be connected to the antenna output end in the third layer electromagnetic shielding cavity. The advantages and features of the present invention will become more apparent from the following detailed description of the invention. [Embodiment] In order to give the reviewer a better understanding and understanding of the structural features and the effects achieved by the reviewer, please refer to the best examples and detailed explanations as follows: Please refer to the figure - The second drawing, the second drawing and the second (four) are the perspective view, the top view, the bottom view and the exploded view of the embodiment of the present invention: as shown in the figure, the electromagnetic shielding cavity integrated speech antenna of the present invention is shown Lin, the electromagnetic shielding cavity is integrated into the human antenna structure. This example is a financial antenna type. The upper town can be divided into three layers. The system consists of a planar antenna radiating button, and the antenna is f 12G. The ground plane converges with an electromagnetic shielding cavity 160. The Han-plane of the first-layer antenna has a feed point (10), which is connected to the second ground plane 130 via the feed pin 15〇7 200805783, and then passes through the feed pin 15〇 through the ground plane 13〇, and is connected to the second The antenna output end of the layer electromagnetic shielding cavity 160, where the electromagnetic shielding cavity, the upper side, the rear side of the uranium, the left side and the right side are the grounding faces 13 of the planar antenna, which are the same as the structure of the electromagnetic shielding cover. The effect of electromagnetic shielding. The feed point 140 is a feed pattern of a standard planar antenna, and one end of the feed pin 15 is connected to the radiating surface 110 of the planar antenna, and the other end is connected to the antenna output of the electromagnetic shielding cavity 16 through the ground plane to The receiving signal of the radiating surface 110 is introduced into the electromagnetic shielding cavity 16 〇 the antenna output 鳊 ' and then the C-Pianar Waveguide transmission line, the micro-strip transmission line and other types of printed circuit board transmission lines Or the coaxial cable is sent to a rate filter, a low noise amplifier, etc. for subsequent processing. Or, the signal amplified by the power amplifier is transmitted to the antenna radiating surface by transmitting the signal to the antenna radiating surface of the antenna pin 15 through the various transmission lines in the first figure. Between the radiating surface 110 and the ground plane 130, ceramic (Ceramic) is used as the antenna medium 120', and its dielectric constant (Dielectric Constant) is 20. It is also possible to use a material having a higher dielectric constant as a medium to reduce the antenna size. As can be seen from the second diagram A, the appearance of the present invention is the same as that of the standard planar antenna, and there is no special appearance. However, as shown in the second figure B and the second figure c, the bottom of the antenna medium 12 includes an electromagnetic shielding cavity 160 for introducing the signal of the radiating surface 11 to the radio frequency front end circuit via the feeding pin 150. Thereby, the electromagnetic shielding cavity 16〇 and the planar antenna are integrated. This example is based on the receiving antenna of the global satellite positioning system. The size of the radiating surface is 21·54 cm by 21.54 cm, and the length of the two sides is 4.27 cm. As shown in the third figure, the electromagnetic shielding of this example is shown. The return loss of the two-cavity integrated planar antenna structure is 157 (MHz to 8 200805783 1580MHz, both below -8dB. From the third 赒, the gain of the integrated planar antenna structure of this example electromagnetic shielding cavity (Gain) In view of the above, the electromagnetic shielding cavity integrated planar antenna structure of the present invention has comparable performance to the general antenna, and can effectively suppress electromagnetic light interference without increasing the size τ. Effectively reduce the cost of purchasing electromagnetic shielding masks for product design. Therefore, the invention is a novelty, progressive and available for industrial use, and should meet the requirements of patent applications stipulated in China's Patent Law. The above is only a preferred example of the present invention, and is not intended to limit the scope of the present invention, and the patent application is based on the present invention. Changes in the application, construction, and spirit of the invention should be included in the scope of the patent application of the present invention.
9 200805783 【圖式簡單說明】 第一圖為本發明實施例之立體圖； 第二A圖為本發明實施例之上視圖； 第二B圖為本發明實施例之下視圖； 第二C圖為本發明實施例之立體分解圖； 第三A圖為本發明實施例之反射損失模擬圖； 第三B圖為本發明實施例之增益模擬圖。 【主要元件符號說明】 100電磁遮蔽空腔整合式平面天線結構 110輻射面 120天線介質 130接地面 140饋入點 150饋入針 160電磁遮蔽空腔BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an embodiment of the present invention; FIG. 2A is a top view of an embodiment of the present invention; An exploded perspective view of an embodiment of the present invention; a third A diagram is a reflection loss simulation diagram of an embodiment of the present invention; and a third B diagram is a gain simulation diagram of an embodiment of the present invention. [Main component symbol description] 100 electromagnetic shielding cavity integrated planar antenna structure 110 radiating surface 120 antenna medium 130 ground plane 140 feeding point 150 feeding needle 160 electromagnetic shielding cavity