1323529 ，九、發明說明： -【發明所屬之技術領域】 方式饋入電 本發明涉及〜種天線，尤其涉及一種藉由耦合 磁波訊號之天線。 【先前技術】1323529, IX. Description of the invention: - [Technical field to which the invention pertains] The present invention relates to an antenna, and more particularly to an antenna coupled by a magnetic wave signal. [Prior Art]
天線為無線通訊設備之必備組件’其係用於收發特定頻段 之電磁波訊號。例如，透過IEEE 802.11 b協定進行通訊的無 線區域網路裝置安裝有可收發2.45GHz頻段的電磉波訊號: 天線。傳統之天線係藉由將饋入部與天線輕射體直接連接來將 電磁波訊號饋入輻射體，然，藉由直接連接之方式所設計出之 天線其工作頻寬通常較窄且所佔面積較大。 【發明内容】 有鑑於此，有必要提供一種耦合式饋入天線，其具有較寬之 工作頻寬且所佔面積小。 一種耦合式饋入天線，設置於一基板上，該耦合式饋入天 線包括一輻射體、一饋入部以及一接地部。輻射體呈彎曲狀， 用於接收及發射電磁波訊號。饋入部與輻射體形成一間隙，用 於藉由該間隙以耦合的方式向輻射體饋入電磁波訊號。接地邙 設置於饋入部之兩侧。 上述耦合式饋入天線藉由耦合方式將電磁波訊號饋入輻 射體，可產生較習知電性連接饋入方式更多之饋入路徑，進而 拓展耦合式饋入天線之工作頻寬，以及減小耦合式饋入天線所 5 丄奶529 、佔之面積。 【實施方式】 • 請參閱圖1，所示為本發明一實施方式中之耦合式饋入天 線10之示意圖。 在本實施方式中，耦合式饋入天線10係設置於基板30 上’且為一單極天線，其包括一輻射體12、一饋入部14以及 一接地部16。 鲁 輻射體12呈螺旋狀，用於接收及發射電磁波訊號，其包 括一第一輻射段U0、一第二輻射段122,以及一連接段124。 第輕射段120係電性連接於接地部16,第二輻射段122係電 ^連接於第-韓射段12()。第—輻射段、連接段以及 ^ 00 & 122首尾相連構成螺旋狀。饋入部14與輻射體12 之間形成一間隙工 妒。 °於其他實施方式中，輻射體12亦可為圓 饋入部14用於鈕 甘—α 、稽由間隙W向輻射體12饋入電磁波訊號， ，、包括一耦合部14 0从及一傳輸部142。The antenna is an essential component of a wireless communication device, which is used to transmit and receive electromagnetic wave signals of a specific frequency band. For example, a wireless LAN device that communicates over the IEEE 802.11b protocol is equipped with an electrical chopping signal that can transmit and receive the 2.45 GHz band: an antenna. The conventional antenna feeds the electromagnetic wave signal into the radiator by directly connecting the feeding portion and the antenna light projecting body. However, the antenna designed by the direct connection method generally has a narrow working bandwidth and a larger area occupied. Big. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a coupled feed antenna having a wide operating bandwidth and a small footprint. A coupled feed antenna is disposed on a substrate. The coupled feed antenna includes a radiator, a feed portion, and a ground portion. The radiator is curved for receiving and transmitting electromagnetic signals. The feeding portion forms a gap with the radiator for feeding the electromagnetic wave signal to the radiator by means of the gap. The grounding 邙 is placed on both sides of the feedthrough. The coupled feed antenna feeds the electromagnetic wave signal into the radiator by the coupling method, which can generate more feed paths than the conventional electrical connection feed mode, thereby expanding the working bandwidth of the coupled feed antenna and reducing Small coupling feed antenna 5 丄 milk 529, the area. [Embodiment] Referring to Figure 1, there is shown a schematic diagram of a coupled feed antenna 10 in accordance with one embodiment of the present invention. In the present embodiment, the coupled feed antenna 10 is disposed on the substrate 30 and is a monopole antenna including a radiator 12, a feed portion 14, and a ground portion 16. The Lu radiator 12 is spirally shaped for receiving and transmitting electromagnetic wave signals, and includes a first radiating section U0, a second radiating section 122, and a connecting section 124. The first shot section 120 is electrically connected to the ground portion 16, and the second radiating section 122 is electrically connected to the first-Han section 12(). The first-radiation section, the connecting section, and ^ 00 & 122 are connected end to end to form a spiral. A gap process is formed between the feed portion 14 and the radiator 12. In other embodiments, the radiator 12 can also be a circular feed portion 14 for the button-α, and the gap W can be used to feed the electromagnetic wave signal to the radiator 12, and includes a coupling portion 14 0 and a transmission portion. 142.
輕合部140传& A ^ 承與輻射體12之連接段124平行設置，二者 之間形成上述間隙1β丄 ^ ^ ^ 當輻射體12為圓形螺旋時，耦合部140 办相應為一圓弧形。 傳輪部142邀知人 1420、— _ 耦合部140電性連接，其包括一第一傳輸線 線1426。^輪線1422、—第三傳輸線1424及—第四傳輸 輪線；U20與耦合部i4〇電性連接，第二傳輸 6 1323529 •線1422與耦合部140電性連接且平行於第一傳輸線142〇。第 .三傳輸線1424與第一傳輸線142〇以及第二傳輸線1422電性 •連接，第四傳輸線1426與第三傳輸線1424電性連接且設置於 接地部16之間。換言之，接地部16係設置於饋入部14之兩 侧。 在本發明之其他實施方式中，傳輸部142亦可只利用第四 傳輸線1426直接與耦合部14〇性連接以傳輸電磁波訊號。 _ 請同時參閱圖2,所示為本發明一實施方式中之耦合式饋 入天線10之參數示意圖。 在本實施方式中’dl為12.5mm，d2為l〇mm，d3為 7.5mm，d4 為 8.5mm，d5 為 6.0mm，d6 為 4.5mm，d7 為 8.0mm， d8 為 2.5mm ’ d9 為 2.5mm，dlO 為 〇.5mm，dll 為 i.〇mm，dl2 為 1.0mm。 請參閱圖3，所示為本發明一實施方式中之耦合式饋入天 •線10之回波損耗（Return Loss)測試圖。圖3中之橫座標轴 表示頻率’縱轴表示回波損耗的幅度。 從圖3中可知，當本發明一實施方式中之耦合式饋入天線 10工作於5.0GHz〜10.0GHz頻段時’其回波損耗均小於。 請參閱圖4至圖9,所示為本發明一實施方式中之耦合式 饋入天線10之輻射場測試圖。 從圖4至圖9中可知，本發明一實施方式中之耦合式饋入 天線 10 工作於 5.0GHz、6.0GHz、7.0GHz、8.0GHz、9.0GHz、 7 • 10.0GHz料時均為全向性。 •一在本實施方式中，電磁波訊號從第四傳輪線U26傳輪到 Ί線1424後，可藉由第二傳輸線1424將電磁波訊號分 成^條路徑傳輸給第—傳輸線卿及第二傳輪線1422，接著 再分別透過第—傳輪線及第二傳輸線1422將電磁波訊號 傳輸給輕合部14〇。故，電磁波訊號在從輕合部⑽以麵合方 式饋入輻射體12時，可產生較習知電性連接饋入方式更多之 饋入路徑，進㈣展耗合式饋人天線1G之卫作頻寬。同時藉 由轄射體12之螺料設計，亦可仙合㈣入天線1G所佔之 面積較小。 請參閱圖10’所示為本發明另一實施方式中之耦合式饋入 天線20之示意圖。 在本實施方式中，耦合式饋入天線20為一平面倒F变天 線，其包括一輻射體22、一饋入部24以及一接地部26。 輻射體22包括一第一輻射段22〇、一第二輻射段222，以 及一連接段224。第一輻射段22〇係電性連接於接地部％，第 一輻射段222係電性連接於第一輻射段22〇。第一輻射段22〇、 連接段224以及第二輻射段222首尾相連並構成彎曲狀。饋入 # 24與輻射體22之間形成一間隙28。 在本實施方式t，第二輻射段222為梳狀型、w型、s型 或U型。饋入部24用於藉由間隙28向輻射體22饋入電磁波 訊號，其包括一耦合部240以及一傳輸部242。耦合部240與 1323529 •輻射體22之連接段224平行設置，二者之間形成上述間隙28, .傳輸部242電性連接於耦合部240。於其他實施方式中，饋入 •部24亦可包括複數傳輸線，以分流方式將電磁波訊讀入輕射 體22。 請參閱圖11，所示為本發明另一實施方式中之輕合式饋入 天線20之參數示意圖。 在本實施方式中，L1為8.7mm，L2為9.5mm，L3為 • 6.0mm，L4 為 3.5mm，L5 為 3.0mm，L6 為 1.5mm，L7 為 χ 5mm， L8 為 0.2mm，L9 為 2.5mm，L10 為 2.0mm。 請參閱圖12,所示為本發明另一實施方式中之耦合式饋入 天線20之回波損耗（Returil Loss)測試圖。圖12中之橫座找 轴表示頻率，縱軸表示回波損耗的幅度。 從圖12中可知，當本發明另一實施方式中之耗合式饋入 天線20工作於2.4GHz〜2.5GHz頻段時，其回波損耗均小於 • -10dB。 請參閱圖13至圖15，所示為本發明另一實施方式中之耦 合式饋入天線20之輻射場測試圖。 從圖13至圖15中可知，本發明一實施方式中之耦合式饋 入天線20工作於2.4GHz、2.45GHz、2.5GHz頻率時均為全向 性。 在本實施方式中，由於耦合式饋入天線2〇為—平面倒F 型天線，故，第二輻射段222可增強第一輻射段22〇之水平極 9 529 529 段 較小 之面積 一果。此外，電磁波訊號在從輕合部240卩執合 射禮20，可產生較習知紐連接饋人方錢多之饋入^輻 進而拓展斜合式饋人天線2G之卫作頻寬。同時藉由第工 222之f曲式設計，亦可使H合式饋人天線2()所佔—_射 綜上所述’本發明符合發明專利要件，要依法提出專利申 請。惟，以上所述者僅為本發明之較佳實施方式，舉凡熟悉本 案技藝之人士，在援依本案發明精神所作之等效修飾或變化， 皆應包含於以下之申請專利範圍内。 【圖式簡單說明】 圖1為本發明一實施方式中之輕合式饋入天線之示意圖。 圖2為本發明一實施方式中之耗合入天線之參數示意 圖。 只 圖3為本發明一實施方式中之輕合式饋入天線之回波損耗 測試圖。 圖4至圖9為本發明一實施方式中之輕合式饋入天線之福 射場測試圖。 圖 圖10為本發明另一實施方式中之耦合式饋入天線之示意 意圖 圖u為本發明-實施方式巾之_合絲人天線之參數示 〇 圖12為本發明另一實施方式中之耦合式饋入天線之回波 1323529 損耗測試圖。 圖13至圖15為本發明另一實施方式中之耦合式饋入天線 .之輻射場測試圖。 【主要元件符號說明】 10、20 輕合式饋入天線 12、22 輻射體 120 、 220 第一輻射段 φ 122 > 222 第二輻射段 124、224 連接段 14、24 饋入部 16 ' 26 接地部 140、240 耦合部 142 > 242 傳輸部 1420 第一傳輸線 • 1422 第二傳輸線 1424 第三傳輸線 1426 第四傳輸線 18、28 間隙 30 基板 11The light coupling portion 140 transmits & A ^ is disposed in parallel with the connecting portion 124 of the radiator 12, and the gap 1β丄^ ^ ^ is formed therebetween. When the radiator 12 is a circular spiral, the coupling portion 140 is correspondingly semi circle. The transmitting portion 142 invites the person 1420, the _ coupling portion 140 to be electrically connected, and includes a first transmission line 1426. The wheel line 1422, the third transmission line 1424, and the fourth transmission wheel line; the U20 is electrically connected to the coupling portion i4, and the second transmission 6 1323529. The line 1422 is electrically connected to the coupling portion 140 and parallel to the first transmission line 142. Hey. The third transmission line 1424 is electrically connected to the first transmission line 142 〇 and the second transmission line 1422 , and the fourth transmission line 1426 is electrically connected to the third transmission line 1424 and disposed between the ground portions 16 . In other words, the grounding portion 16 is provided on both sides of the feeding portion 14. In other embodiments of the present invention, the transmission unit 142 may directly connect to the coupling portion 14 directly by the fourth transmission line 1426 to transmit electromagnetic wave signals. Referring to FIG. 2, a schematic diagram of parameters of the coupled feed antenna 10 in accordance with an embodiment of the present invention is shown. In the present embodiment, 'dl is 12.5 mm, d2 is l〇mm, d3 is 7.5 mm, d4 is 8.5 mm, d5 is 6.0 mm, d6 is 4.5 mm, d7 is 8.0 mm, d8 is 2.5 mm 'd9 is 2.5 Mm, dlO is 〇.5mm, dll is i.〇mm, and dl2 is 1.0mm. Referring to FIG. 3, a return loss test chart of the coupled feed antenna 10 in an embodiment of the present invention is shown. The abscissa axis in Fig. 3 indicates the frequency 'the vertical axis indicates the magnitude of the return loss. As can be seen from Fig. 3, when the coupled feed antenna 10 of one embodiment of the present invention operates in the 5.0 GHz to 10.0 GHz band, its return loss is smaller. Referring to Figures 4 through 9, there is shown a radiation field test diagram of the coupled feed antenna 10 in accordance with one embodiment of the present invention. As can be seen from FIG. 4 to FIG. 9, the coupled feed antenna 10 according to an embodiment of the present invention is omnidirectional when operating at 5.0 GHz, 6.0 GHz, 7.0 GHz, 8.0 GHz, 9.0 GHz, and 7 • 10.0 GHz. . In the present embodiment, after the electromagnetic wave signal is transmitted from the fourth transmission line U26 to the squall line 1424, the electromagnetic wave signal can be divided into two paths by the second transmission line 1424 to the first transmission line and the second transmission wheel. The line 1422 then transmits the electromagnetic wave signal to the light fitting portion 14 through the first transmission line and the second transmission line 1422, respectively. Therefore, when the electromagnetic wave signal is fed into the radiator 12 from the light-closing portion (10) in a face-to-face manner, a feeding path can be generated more than a conventional electrical connection feeding method, and the (four) exhibition-integrated feeding antenna 1G is provided. Make the bandwidth. At the same time, by the design of the screw of the illuminating body 12, it is also possible that the area occupied by the antenna 1G is smaller. Please refer to FIG. 10' for a schematic diagram of a coupled feed antenna 20 in accordance with another embodiment of the present invention. In the present embodiment, the coupled feed antenna 20 is a planar inverted F antenna, which includes a radiator 22, a feed portion 24, and a ground portion 26. The radiator 22 includes a first radiating section 22, a second radiating section 222, and a connecting section 224. The first radiating section 22 is electrically connected to the ground portion %, and the first radiating section 222 is electrically connected to the first radiating section 22A. The first radiating section 22, the connecting section 224 and the second radiating section 222 are connected end to end and form a curved shape. A gap 28 is formed between the feed #24 and the radiator 22. In the present embodiment t, the second radiating section 222 is of a comb type, a w type, an s type, or a U type. The feeding portion 24 is configured to feed the electromagnetic wave signal to the radiator 22 through the gap 28, and includes a coupling portion 240 and a transmission portion 242. The coupling portion 240 is disposed in parallel with the connecting portion 224 of the radiator 22, and the gap 28 is formed therebetween. The transmission portion 242 is electrically connected to the coupling portion 240. In other embodiments, the feed portion 24 can also include a plurality of transmission lines for reading electromagnetic waves into the light projecting body 22 in a shunt manner. Referring to FIG. 11, a schematic diagram of parameters of the light-fed feed antenna 20 in another embodiment of the present invention is shown. In the present embodiment, L1 is 8.7 mm, L2 is 9.5 mm, L3 is 6.0 mm, L4 is 3.5 mm, L5 is 3.0 mm, L6 is 1.5 mm, L7 is χ 5 mm, L8 is 0.2 mm, and L9 is 2.5. Mm, L10 is 2.0mm. Referring to Fig. 12, there is shown a return loss (Returil Loss) test chart of the coupled feed antenna 20 in another embodiment of the present invention. In Fig. 12, the horizontal axis represents the frequency, and the vertical axis represents the amplitude of the return loss. As can be seen from Fig. 12, when the consumable feed antenna 20 of another embodiment of the present invention operates in the 2.4 GHz to 2.5 GHz band, its return loss is less than -10 dB. Referring to Figures 13 through 15, there is shown a radiation field test diagram of the coupled feed antenna 20 in accordance with another embodiment of the present invention. As can be seen from Fig. 13 to Fig. 15, the coupled feed antenna 20 according to an embodiment of the present invention is omnidirectional when operating at 2.4 GHz, 2.45 GHz, and 2.5 GHz frequencies. In the present embodiment, since the coupled feed antenna 2 is a planar inverted F antenna, the second radiating section 222 can enhance the smaller area of the horizontal pole 9 529 529 of the first radiating section 22 . In addition, the electromagnetic wave signal is executed in the light-closing unit 240, and the shooting frequency 20 can be generated by the feed of the familiar-new-connected feed and the expansion of the oblique-feeding antenna 2G. At the same time, by the f-type design of the work 222, the H-type feed antenna 2() can be used as the above-mentioned invention. The invention complies with the invention patent requirement, and the patent application is required according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a light-fed feed antenna according to an embodiment of the present invention. Fig. 2 is a schematic diagram showing the parameters of the consuming antenna in an embodiment of the present invention. Fig. 3 is a test diagram of return loss of a light-fed feed antenna according to an embodiment of the present invention. 4 to 9 are test diagrams of the radiation field of the light-fed feed antenna according to an embodiment of the present invention. FIG. 10 is a schematic view of a coupled feed antenna according to another embodiment of the present invention. FIG. 12 is a parameter diagram of a woven wire antenna of the present invention. FIG. 12 is another embodiment of the present invention. Coupled feed antenna echo 1323529 loss test chart. 13 to FIG. 15 are radiation field test diagrams of a coupled feed antenna according to another embodiment of the present invention. [Major component symbol description] 10, 20 Light-fed feed antenna 12, 22 radiator 120, 220 First radiation segment φ 122 > 222 Second radiant section 124, 224 Connection section 14, 24 Feeding section 16 ' 26 Grounding section 140, 240 coupling portion 142 > 242 transmission portion 1420 first transmission line • 1422 second transmission line 1424 third transmission line 1426 fourth transmission line 18, 28 gap 30 substrate 11