TW201917946A - Antenna structure and wireless communication device using same - Google Patents
Antenna structure and wireless communication device using same Download PDFInfo
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Abstract
Description
本發明涉及一種天線結構及具有該天線結構的無線通訊裝置。The present invention relates to an antenna structure and a wireless communication device having the same.
隨著無線通訊技術的進步，無線通訊裝置不斷朝向輕薄趨勢發展，消費者對於產品外觀的要求也越來越高。由於金屬殼體在外觀、機構強度、散熱效果等方面具有優勢，因此越來越多的廠商設計出具有金屬殼體，例如背板的無線通訊裝置來滿足消費者的需求。但是，金屬殼體容易干擾遮蔽設置在其內的天線所輻射的訊號，不容易達到寬頻設計，導致內置天線的輻射性能不佳。再者，所述背板上通常還設置有開槽及斷點，如此將影響背板的完整性和美觀性。With the advancement of wireless communication technology, wireless communication devices are constantly moving toward a thin and light trend, and consumers are increasingly demanding the appearance of products. Since the metal casing has advantages in appearance, mechanism strength, heat dissipation effect, etc., more and more manufacturers have designed a wireless communication device having a metal casing, such as a backboard, to meet the needs of consumers. However, the metal casing easily interferes with the signal radiated by the antenna disposed therein, and the broadband design is not easily achieved, resulting in poor radiation performance of the built-in antenna. Moreover, the backing plate is usually provided with a slot and a break point, which will affect the integrity and aesthetics of the backboard.
有鑑於此，有必要提供一種天線結構及具有該天線結構的無線通訊裝置。In view of the above, it is necessary to provide an antenna structure and a wireless communication device having the same.
一種天線結構，包括輻射部、接地部、饋入部、金屬邊框及第一匹配電路，所述金屬邊框開設第一斷點，所述第一斷點將金屬邊框的一側部邊框形成第一輻射段，所述輻射部與所述饋入部及接地部連接並間隔設置於所述金屬邊框的內側，並且電性連接於所述第一輻射段，所述第一匹配電路一端電性連接於所述第一輻射段接近所述第一斷點的一端，所述第一匹配電路的另一端電性連接所述接地部連接至地，所述饋入部饋入電流至所述輻射部、所述第一輻射段的兩端及所述第一匹配電路以激發第一頻段的輻射訊號。An antenna structure includes a radiating portion, a grounding portion, a feeding portion, a metal frame, and a first matching circuit, wherein the metal frame opens a first break point, and the first break point forms a first radiating portion of a side frame of the metal frame The radiating portion is connected to the feeding portion and the grounding portion and is disposed at an inner side of the metal frame, and is electrically connected to the first radiating portion, and one end of the first matching circuit is electrically connected to the The first radiating section is adjacent to one end of the first breaking point, the other end of the first matching circuit is electrically connected to the grounding portion and connected to the ground, and the feeding portion feeds current to the radiating portion, the first Both ends of a radiating section and the first matching circuit excite the radiation signal of the first frequency band.
一種無線通訊裝置，包括上述所述的天線結構。A wireless communication device comprising the antenna structure described above.
所述天線結構通過在第一延伸部與第二延伸部之間串接一負載元件，可提升間距較近的輻射部與第一輻射段之間的隔離度，較佳地較低了相互的干擾，提升了天線結構的輻射品質。另外，所述天線結構通過設置所述殼體，且所述殼體上的斷點均設置於所述金屬邊框上，並未設置於所述背板上，即所述背板上並沒有絕緣的開槽、斷線或斷點，使得所述背板可避免由於開槽、斷線或斷點的設置而影響背板的完整性和美觀性。The antenna structure can improve the isolation between the relatively close-range radiating portion and the first radiating portion by connecting a load component between the first extending portion and the second extending portion, preferably lower mutual Interference increases the radiation quality of the antenna structure. In addition, the antenna structure is provided with the housing, and the break points on the housing are all disposed on the metal frame, and are not disposed on the back board, that is, the back board is not insulated. Slotting, breaking or breakpointing allows the backing plate to avoid the integrity and aesthetics of the backing plate due to the provision of slots, breaks or breakpoints.
下面將結合本發明實施例中的附圖，對本發明實施例中的技術方案進行清楚、完整地描述，顯然，所描述的實施例僅僅是本發明一部分實施例，而不是全部的實施例。基於本發明中的實施例，本領域普通技術人員在沒有做出創造性勞動前提下所獲得的所有其他實施例，都屬於本發明保護的範圍。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
需要說明的是，當一個元件被稱為“電連接”另一個元件，它可以直接在另一個元件上或者也可以存在居中的元件。當一個元件被認為是“電連接”另一個元件，它可以是接觸連接，例如，可以是導線連接的方式，也可以是非接觸式連接，例如，可以是非接觸式耦合的方式。It should be noted that when an element is referred to as being "electrically connected" to another element, it can be directly on the other element or the element can be present. When an element is considered to be "electrically connected" to another element, it can be a contact connection, for example, either a wire connection or a non-contact connection, for example, a non-contact coupling.
除非另有定義，本文所使用的所有的技術和科學術語與屬於本發明的技術領域的技術人員通常理解的含義相同。本文中在本發明的說明書中所使用的術語只是為了描述具體的實施例的目的，不是旨在於限制本發明。本文所使用的術語“及／或”包括一個或多個相關的所列項目的任意的和所有的組合。All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.
下面結合附圖，對本發明的一些實施方式作詳細說明。在不衝突的情況下，下述的實施例及實施例中的特徵可以相互組合。Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The features of the embodiments and examples described below can be combined with each other without conflict.
請參閱圖1，本發明較佳實施方式提供一種天線結構100，其可應用於行動電話、個人數位助理等無線通訊裝置200中，用以發射、接收無線電波以傳遞、交換無線訊號。Referring to FIG. 1, a preferred embodiment of the present invention provides an antenna structure 100 that can be applied to a wireless communication device 200 such as a mobile phone or a personal digital assistant to transmit and receive radio waves to transmit and exchange wireless signals.
請一併參閱圖2及圖3，所述天線結構100包括殼體11、輻射部13、饋入部14、接地部15、第一延伸部16、第二延伸部18及第一匹配電路20（參圖4及圖5）、第二匹配電路32（參圖5）、第三匹配電路36（參圖5）、第四匹配電路38（參圖4及圖5）、切換電路34（參圖5）。Referring to FIG. 2 and FIG. 3 , the antenna structure 100 includes a housing 11 , a radiating portion 13 , a feeding portion 14 , a grounding portion 15 , a first extending portion 16 , a second extending portion 18 , and a first matching circuit 20 ( 4 and 5), the second matching circuit 32 (refer to FIG. 5), the third matching circuit 36 (refer to FIG. 5), the fourth matching circuit 38 (refer to FIG. 4 and FIG. 5), and the switching circuit 34 (refer to FIG. 5).
請參閱圖2及圖3，所述殼體11可以為所述無線通訊裝置200的外殼。所述殼體11包括前框111、背板112及金屬邊框113。所述前框111、背板112以及金屬邊框113構成所述無線通訊裝置200的外殼。所述前框111上設置有一開口（圖未標），用於容置所述無線通訊裝置200的顯示單元201。可以理解，所述顯示單元201具有一顯示平面，該顯示平面裸露於該開口，且該顯示平面與所述背板112大致平行設置。Referring to FIGS. 2 and 3 , the housing 11 may be an outer casing of the wireless communication device 200 . The housing 11 includes a front frame 111, a back plate 112, and a metal frame 113. The front frame 111, the back plate 112, and the metal frame 113 constitute an outer casing of the wireless communication device 200. An opening (not labeled) is disposed on the front frame 111 for receiving the display unit 201 of the wireless communication device 200. It can be understood that the display unit 201 has a display plane exposed to the opening, and the display plane is disposed substantially parallel to the back plate 112.
所述背板112與所述前框111相對設置。所述金屬邊框113夾設於所述前框111與背板112之間。所述背板112為顯露後置鏡頭202等元件而設置開孔204，所述背板112上並沒有設置任何用於分割所述背板112的絕緣的開槽、斷線或斷點（請參圖1）。本發明一較佳實施例中，所述背板112為一非金屬材質製成。The back plate 112 is disposed opposite to the front frame 111. The metal frame 113 is sandwiched between the front frame 111 and the back plate 112. The backing plate 112 is provided with an opening 204 for exposing components such as the rear lens 202. The backing plate 112 is not provided with any slot, disconnection or breakpoint for separating the backing plate 112 (please See Figure 1). In a preferred embodiment of the invention, the backing plate 112 is made of a non-metallic material.
所述金屬邊框113夾設於所述前框111與所述背板112之間，且分別環繞所述前框111及所述背板112的周緣設置，以與所述顯示單元201、所述前框111以及背板112共同圍成一容置空間114。所述容置空間114用以容置所述無線通訊裝置200的電路板210、處理單元等電子元件或電路模組於其內。本實施例中，所述電子元件至少包括所述後置鏡頭202，所述後置鏡頭202設置於所述無線通訊裝置200的電路板210。The metal frame 113 is disposed between the front frame 111 and the back plate 112, and is disposed around the circumference of the front frame 111 and the back plate 112, respectively, to be opposite to the display unit 201, The front frame 111 and the back plate 112 together define an accommodation space 114. The accommodating space 114 is configured to receive an electronic component or a circuit module of the circuit board 210, the processing unit, and the like of the wireless communication device 200. In this embodiment, the electronic component includes at least the rear lens 202, and the rear lens 202 is disposed on the circuit board 210 of the wireless communication device 200.
所述金屬邊框113至少包括頂部115、第一側部116以及第二側部117。所述頂部115連接所述前框111與所述背板112。所述第一側部116與所述第二側部117相對設置，兩者分別設置於所述頂部115的兩端，優選垂直設置於所述頂部115的兩端。所述第一側部116與所述第二側部117亦連接所述前框111與所述背板112。The metal frame 113 includes at least a top portion 115, a first side portion 116, and a second side portion 117. The top portion 115 connects the front frame 111 and the back plate 112. The first side portion 116 is disposed opposite to the second side portion 117 , and is disposed at two ends of the top portion 115 , preferably perpendicularly disposed at two ends of the top portion 115 . The first side portion 116 and the second side portion 117 are also connected to the front frame 111 and the back plate 112.
所述金屬邊框113的頂部115間隔開設有第一斷點1112及第二斷點1114，所述第一斷點1112及第二斷點1114位於所述頂部115。所述斷點1112、1114將金屬邊框113劃分出三部分，這三部分至少包括第一輻射段24、第二輻射段22及第三輻射段26。在本實施例中，所述第一斷點1112及第二斷點1114分別設置於前框111的頂邊的相對兩端靠近拐角處，第二輻射段22位於第一斷點1112與第二斷點1114之間；所述第一輻射段24由第一斷點1112延伸至所述第一側部116；所述第三輻射段26由第二斷點1114延伸至所述第二側部117。另外，所述斷點1112、1114內均填充有絕緣材料（例如塑膠、橡膠、玻璃、木材、陶瓷等，但不以此為限），進而所述第二輻射段22、第一輻射段24、第三輻射段26之間相互區隔。The top 115 of the metal frame 113 is spaced apart from the first break point 1112 and the second break point 1114. The first break point 1112 and the second break point 1114 are located at the top portion 115. The break points 1112, 1114 divide the metal frame 113 into three parts, the three parts including at least the first radiating section 24, the second radiating section 22 and the third radiating section 26. In this embodiment, the first break point 1112 and the second break point 1114 are respectively disposed at opposite ends of the top edge of the front frame 111 near the corner, and the second radiant section 22 is located at the first break point 1112 and the second Between the breakpoints 1114; the first radiant section 24 extends from the first breakpoint 1112 to the first side 116; the third radiant section 26 extends from the second breakpoint 1114 to the second side 117. In addition, the break points 1112 and 1114 are filled with an insulating material (for example, plastic, rubber, glass, wood, ceramics, etc., but not limited thereto), and the second radiating section 22 and the first radiating section 24 are further The third radiant section 26 is separated from each other.
可以理解，所述金屬邊框113上半部除了所述斷點以外沒有再設置其他絕緣的開槽、斷線或斷點，因此所述金屬邊框113的上半部就只有兩個斷點1112、1114，沒有其他斷點。It can be understood that the upper half of the metal frame 113 is not provided with other insulating slots, broken lines or break points except the break point, so the upper half of the metal frame 113 has only two break points 1112. 1114, no other breakpoints.
請參閱圖3，所述輻射部13大致呈矩形金屬片體。所述輻射部13與所述第二輻射段22間隔設置。所述輻射部13包括第一突出部132及第二突出部134。所述第一突出部132及第二突出部134分別從所述輻射部13的兩個相鄰側邊向外延伸形成。所述輻射部13上分別開設兩個對位孔136，用於將所述輻射部13對應於電路板210上的對位元結構（圖未示）。本實施例中，其中一對位孔136開設於所述第一突出部132上，另一對位孔136開設於與所述第一突出部132的對角上。所述輻射部13間隔設置於所述後置鏡頭202的一側，所述後置鏡頭202的相鄰另一側間隔所述第二輻射段22設置。Referring to FIG. 3, the radiation portion 13 is substantially a rectangular metal sheet body. The radiation portion 13 is spaced apart from the second radiation segment 22. The radiation portion 13 includes a first protrusion 132 and a second protrusion 134. The first protruding portion 132 and the second protruding portion 134 are respectively formed to extend outward from two adjacent side edges of the radiating portion 13 . Two aligning holes 136 are defined in the radiating portion 13 for respectively corresponding to the directional structure (not shown) on the circuit board 210. In this embodiment, a pair of positioning holes 136 are defined in the first protruding portion 132 , and another alignment hole 136 is defined in a diagonal direction opposite to the first protruding portion 132 . The radiating portions 13 are spaced apart from one side of the rear lens 202, and the other adjacent side of the rear lens 202 is spaced apart from the second radiating portion 22.
所述接地部15與所述輻射部13一體成型。所述接地部15連接於所述第二突出部134。所述接地部15包括依次連接的第一臂152、第二臂154及第三臂156。所述第一臂152大致呈U形，其一端連接於所述第二突出部134並與所述第二突出部134平齊，另一端經U形彎折後延伸至間隔平行於所述第二突出部134。所述第二臂154相對兩端分別連接所述第一臂152與第三臂156，且第二臂154與第一臂152及第三臂156的夾角分別呈鈍角。所述第三臂156大致平行於所述輻射部13。所述第三臂156上開設有一接觸孔157。所述輻射部13通過所述接觸孔157由載體（圖未示）固定至電路板210之上。The ground portion 15 is integrally formed with the radiation portion 13. The grounding portion 15 is connected to the second protruding portion 134. The grounding portion 15 includes a first arm 152, a second arm 154, and a third arm 156 that are sequentially connected. The first arm 152 is substantially U-shaped, one end of which is connected to the second protrusion 134 and flush with the second protrusion 134, and the other end is bent by U-shape and extends to an interval parallel to the first Two protrusions 134. The first arm 152 and the third arm 156 are respectively connected to opposite ends of the second arm 154, and the angle between the second arm 154 and the first arm 152 and the third arm 156 are respectively obtuse angles. The third arm 156 is substantially parallel to the radiation portion 13. A contact hole 157 is defined in the third arm 156. The radiation portion 13 is fixed to the circuit board 210 by a carrier (not shown) through the contact hole 157.
所述饋入部14大致呈U形金屬彈片。所述饋入部14抵持於所述輻射部13與電路板210之間，其一端電連接至電路板210上的第一饋入源27（參圖4），另一端通過所述第四匹配電路38電性連接至所述輻射部13，從而饋入部14為所述輻射部13饋入電流。The feed portion 14 is substantially a U-shaped metal dome. The feeding portion 14 is abutted between the radiating portion 13 and the circuit board 210, one end of which is electrically connected to the first feeding source 27 on the circuit board 210 (refer to FIG. 4), and the other end passes the fourth matching. The circuit 38 is electrically connected to the radiating portion 13, so that the feeding portion 14 feeds current to the radiating portion 13.
所述第一延伸部16及第二延伸部18分別由所述第一輻射段24相向所述輻射部13延伸形成。具體地，所述第一延伸部16由所述第一輻射段24位於頂部115的一端相向所述輻射部13延伸形成，所述第一延伸部16臨近所述第一斷點1112設置，所述第一延伸部16大致呈U形金屬彈片；所述第二延伸部18由所述第一輻射段24位於第一側部116的一端相向所述輻射部13的第二突出部134延伸形成，並延伸至與所述接地部15電性連接。所述第一輻射段24設置所述第二延伸部18的一端連接至電路板210的接地面，從而使得所述接地部15通過所述第二延伸部18及第一輻射段24為所述輻射部13提供接地。本實施例中，所述第二延伸部18可通過一連接觸片182（請參見圖4）與接地部15的第三臂156上開設的接觸孔157固定及電性連接。The first extension portion 16 and the second extension portion 18 are respectively formed by the first radiant section 24 extending toward the radiation portion 13 . Specifically, the first extending portion 16 is formed by extending the first radiating portion 24 at one end of the top portion 115 toward the radiating portion 13. The first extending portion 16 is disposed adjacent to the first breaking point 1112. The first extending portion 16 is substantially a U-shaped metal dome; the second extending portion 18 is formed by the first radiating portion 24 at one end of the first side portion 116 and toward the second protruding portion 134 of the radiating portion 13 And extending to be electrically connected to the grounding portion 15. The first radiating section 24 is disposed with one end of the second extending portion 18 connected to the grounding surface of the circuit board 210 such that the grounding portion 15 passes through the second extending portion 18 and the first radiating portion 24 The radiation portion 13 provides grounding. In this embodiment, the second extending portion 18 can be fixedly and electrically connected to the contact hole 157 formed in the third arm 156 of the grounding portion 15 via a connecting contact piece 182 (see FIG. 4).
請參閱圖4及圖5，所述第一匹配電路20包括一負載元件220。所述第負載元件220的兩端分別電性連接至所述第一延伸部16及第二延伸部18。本實施例中，所述負載元件220可為電容、電感、電阻或者電感與電容的組合。Referring to FIGS. 4 and 5 , the first matching circuit 20 includes a load component 220 . Both ends of the first load component 220 are electrically connected to the first extension portion 16 and the second extension portion 18 respectively. In this embodiment, the load component 220 can be a capacitor, an inductor, a resistor, or a combination of an inductor and a capacitor.
所述饋入部14從電路板210上的第一饋入源27饋入電流，電流經過所述第四匹配電路38饋入所述輻射部13並沿所述輻射部13及接地部15流動至所述連接觸片182後，分別向兩個方向流動，一個方向為沿所述第二延伸部18及第二輻射體24流動至電路板210的接地面；另一個方向為沿所述第一匹配電路20流動至所述第一延伸部16，並通過第二輻射體24流動至電路板210的接地面。從而使得所述饋入部14、輻射部13、接地部15、第二延伸部18、第一匹配電路20、第一延伸部16及第一輻射段24共同激發一第一模態以產生第一頻段的輻射訊號。本實施例中，所述第一模態為WiFi模態，所述第一頻段為2400-2480MHz頻段。所述饋入部14、輻射部13、接地部15共同形成一WiFi天線，用於收發WiFi輻射訊號。The feeding portion 14 feeds a current from the first feeding source 27 on the circuit board 210, and the current is fed into the radiation portion 13 through the fourth matching circuit 38 and flows along the radiation portion 13 and the ground portion 15 to After the contact pads 182 are connected, respectively, flowing in two directions, one direction is a grounding surface flowing along the second extending portion 18 and the second radiator 24 to the circuit board 210; the other direction is along the first The matching circuit 20 flows to the first extension 16 and flows through the second radiator 24 to the ground plane of the circuit board 210. Thus, the feeding portion 14, the radiating portion 13, the ground portion 15, the second extending portion 18, the first matching circuit 20, the first extending portion 16, and the first radiating portion 24 collectively excite a first mode to generate a first Radiation signal in the frequency band. In this embodiment, the first mode is a WiFi mode, and the first frequency band is a frequency band of 2400-2480 MHz. The feeding portion 14, the radiating portion 13, and the grounding portion 15 together form a WiFi antenna for transmitting and receiving WiFi radiation signals.
請參閱圖5，所述第二匹配電路32一端電性連接至所述電路板210上的第二饋入源28，另一端電性連接至所述第二輻射段22。所述切換電路34一端電性連接至所述第二輻射段22，另一端連接至地。所述切換電路34連接至第二輻射段22的接入點位於所述第二匹配電路32的接入點與所述第一斷點1112之間。所述第二輻射段22靠近所述第二斷點1114的一端還通過一負載單元222連接至地。本實施例中，所述負載單元222可為電容、電感、電阻或者電感與電容的組合。所述第二輻射段22通過所述第二匹配電路32從第二饋入源28饋入電流，電流從第二匹配電路32進入第二輻射段22後，分別流向所述第一斷點1112及第二斷點1114，並同時流經所述切換電路34及負載單元222。從而所述第二匹配電路32、第二輻射段22、切換電路34及負載單元222共同形成一分集天線，並共同激發一第二模態以產生第二頻段的輻射訊號。本實施例中，所述第二模態為LTE-A低中高模態，所述第二頻段為700-960MHz、1710-2170MHz及2300-2690MHz頻段。其中，所述第二延伸部18、第一匹配電路20及第一延伸部16的設置，使得第一輻射段24的饋入電流並不會耦合至所述第二輻射段22，使得所述第一模態與第二模態具有良好的隔離度，較佳地較低了相互的干擾，提升了天線結構100的輻射品質。Referring to FIG. 5 , one end of the second matching circuit 32 is electrically connected to the second feed source 28 on the circuit board 210 , and the other end is electrically connected to the second radiating section 22 . The switching circuit 34 is electrically connected to the second radiating section 22 at one end and to the ground at the other end. The access point of the switching circuit 34 connected to the second radiating section 22 is located between the access point of the second matching circuit 32 and the first break point 1112. One end of the second radiating section 22 near the second break point 1114 is also connected to the ground through a load unit 222. In this embodiment, the load unit 222 can be a capacitor, an inductor, a resistor, or a combination of an inductor and a capacitor. The second radiant section 22 feeds current from the second feed source 28 through the second matching circuit 32. After the current enters the second radiant section 22 from the second matching circuit 32, the current flows to the first breakpoint 1112, respectively. And the second break point 1114, and simultaneously flows through the switching circuit 34 and the load unit 222. Thus, the second matching circuit 32, the second radiating section 22, the switching circuit 34 and the load unit 222 together form a diversity antenna and jointly excite a second mode to generate a radiation signal of the second frequency band. In this embodiment, the second mode is an LTE-A low-medium-high mode, and the second frequency band is a 700-960 MHz, 1710-2170 MHz, and 2300-2690 MHz frequency band. Wherein the second extension 18, the first matching circuit 20 and the first extension 16 are disposed such that the feed current of the first radiant section 24 is not coupled to the second radiant section 22, such that The first mode and the second mode have good isolation, preferably lower mutual interference, and improve the radiation quality of the antenna structure 100.
請參閱圖5，所述第三輻射段26的結構與第一輻射段24的結構大致相同。所述第三輻射段26靠近所述第二斷點1114的一端通過第三匹配電路36連接至所述電路板210上的第三饋入源29。所述第三輻射段26遠離所述第二斷點1114的一端設置第三延伸部262，並通過所述第三延伸部262連接至地。本實施例中，所述第三輻射段26通過所述第三匹配電路36從第三饋入源29饋入電流，電流沿所述第三輻射段26流動至所述第三延伸部262後下地。從而所述第三匹配電路36、第三輻射段26及第三延伸部262共同激發一第三模態以產生第三頻段的輻射訊號。本實施例中，所述第三模態為GPS模態，所述第三頻段為1575MHz頻段。所述第三匹配電路36、第三輻射段26及第三延伸部262共同形成一GPS天線，用於收發GPS輻射訊號。Referring to FIG. 5, the structure of the third radiating section 26 is substantially the same as that of the first radiating section 24. One end of the third radiant section 26 near the second break point 1114 is connected to the third feed source 29 on the circuit board 210 through a third matching circuit 36. The third radiating section 26 is disposed away from an end of the second break point 1114 and is connected to the ground by the third extension 262. In this embodiment, the third radiating section 26 feeds current from the third feeding source 29 through the third matching circuit 36, and the current flows along the third radiating section 26 to the third extending portion 262. Under the ground. Thus, the third matching circuit 36, the third radiating section 26 and the third extending portion 262 jointly excite a third mode to generate a radiation signal of the third frequency band. In this embodiment, the third mode is a GPS mode, and the third frequency band is a 1575 MHz band. The third matching circuit 36, the third radiating section 26 and the third extending portion 262 together form a GPS antenna for transmitting and receiving GPS radiation signals.
本實施例中，在所述顯示單元201朝向背板112那一邊可設置一個用於遮罩電磁干擾的遮罩（shielding mask）或支撐所述顯示單元201的中框。所述遮罩或中框以金屬材料製作。所述接地面也可以是所述遮罩或中框。所述接地面是所述天線結構100的地。也就是說，所述的每一個接地部或接地點均直接連接或間接連接所述接地面。In this embodiment, a shielding mask for shielding electromagnetic interference or a middle frame supporting the display unit 201 may be disposed on the side of the display unit 201 facing the back plate 112. The mask or the middle frame is made of a metal material. The ground plane may also be the mask or the middle frame. The ground plane is the ground of the antenna structure 100. That is to say, each of the grounding portions or the grounding points are directly connected or indirectly connected to the grounding surface.
為得到較佳的天線特性，所述斷點1112、1114的寬度可設置為1.5-2.5毫米。本實施例中，所述斷點1112、1114的寬度設置為2毫米，以在不影響所述天線結構100的整體外觀的情況下進一步提升所述輻射段的天線效率。To obtain better antenna characteristics, the width of the breakpoints 1112, 1114 can be set to 1.5-2.5 mm. In this embodiment, the width of the breakpoints 1112, 1114 is set to 2 millimeters to further enhance the antenna efficiency of the radiant section without affecting the overall appearance of the antenna structure 100.
圖6為所述天線結構100的工作時的回波損耗（Return Loss）曲線圖。其中，曲線S61為所述WiFi天線工作時的回波損耗值；曲線S62為所述分集天線工作時的回波損耗值。曲線S63為所述WiFi天線及所述分集天線工作時的的隔離度曲線。FIG. 6 is a graph of return loss (Return Loss) of the antenna structure 100 during operation. The curve S61 is a return loss value when the WiFi antenna is in operation; and the curve S62 is a return loss value when the diversity antenna is in operation. A curve S63 is an isolation curve when the WiFi antenna and the diversity antenna are operated.
圖7為所述天線結構100的WiFi天線與分集天線的隔離度（Isolation）曲線圖。其中，曲線S71為為所述WiFi天線及所述分集天線工作時的的隔離度曲線。曲線S72為所述WiFi天線與所述分集天線省略所述第一匹配電路20時的隔離度的隔離度曲線。顯然，當所述天線結構100中的所述WiFi天線與所述分集天線搭配所述第一匹配電路20時，所述WiFi天線與所述分集天線之間的隔離度有較大的提升。FIG. 7 is an Isolation curve diagram of a WiFi antenna and a diversity antenna of the antenna structure 100. The curve S71 is an isolation curve when the WiFi antenna and the diversity antenna are operated. A curve S72 is an isolation curve of the isolation when the WiFi antenna and the diversity antenna omits the first matching circuit 20. Obviously, when the WiFi antenna in the antenna structure 100 and the diversity antenna are matched with the first matching circuit 20, the isolation between the WiFi antenna and the diversity antenna is greatly improved.
圖8為所述天線結構100工作時的效率（Efficiency）曲線圖。其中，曲線S81為所述WiFi天線的效率曲線；曲線S82為所述WiFi天線與所述分集天線省略所述第一匹配電路20時的效率曲線。顯然，當所述天線結構100中的所述WiFi天線與所述分集天線搭配所述第一匹配電路20時，天線結構100的輻射效率大於-7分貝（dB），比省略第一匹配電路20的天線結構的輻射效率提升了大致2分貝。FIG. 8 is a graph showing the efficiency of the antenna structure 100 during operation. The curve S81 is an efficiency curve of the WiFi antenna; and the curve S82 is an efficiency curve when the WiFi antenna and the diversity antenna omits the first matching circuit 20. Obviously, when the WiFi antenna in the antenna structure 100 and the diversity antenna are matched with the first matching circuit 20, the radiation efficiency of the antenna structure 100 is greater than -7 decibels (dB), and the first matching circuit 20 is omitted. The radiation efficiency of the antenna structure is increased by approximately 2 dB.
顯然，從圖6至圖8可知，所述天線結構100中的所述WiFi天線與所述分集天線搭配所述第一匹配電路20時，天線結構100具有較高的隔離度及具有較佳的輻射效率。另外，所述天線結構100還可工作於低中高頻、WiFi頻段及GPS頻段，涵蓋頻率範圍較廣，且當所述天線結構100工作於上述頻段時，其工作頻率均可滿足天線工作設計要求，並具有較佳的輻射效率。Obviously, as shown in FIG. 6 to FIG. 8 , when the WiFi antenna in the antenna structure 100 and the diversity antenna are matched with the first matching circuit 20 , the antenna structure 100 has high isolation and has better performance. Radiation efficiency. In addition, the antenna structure 100 can also work in the low, medium, high frequency, WiFi frequency band and GPS frequency band, and covers a wide frequency range. When the antenna structure 100 works in the above frequency band, the operating frequency can meet the antenna working design requirements. And has better radiation efficiency.
本實施例中，所述WiFi天線為由所述饋入部14、輻射部13與接地部15形成的PIFA天線。在另外的實施例中，所述WiFi天線可不限於上述的PIFA天線結構，還可為其他形式的天線結構。例如，在第二實施例中，請參閱圖9，所述WiFi天線可為一環形（Loop）天線。輻射部513一端電性連接至所述第一饋入源27，另一端電性連接至所述連接觸片182。在第三實施例中，請參閱圖10，所述WiFi天線可為一單極（Monopole）天線。輻射部613一端電性連接至所述第一饋入源27，另一端延伸至間隔所述第二輻射段22。輻射部613連接第一饋入源27的一端還通過另一負載元件622電性連接至所述連接觸片182。In this embodiment, the WiFi antenna is a PIFA antenna formed by the feeding portion 14, the radiation portion 13, and the ground portion 15. In other embodiments, the WiFi antenna may not be limited to the above-described PIFA antenna structure, and may be other forms of antenna structures. For example, in the second embodiment, referring to FIG. 9, the WiFi antenna may be a loop antenna. One end of the radiating portion 513 is electrically connected to the first feeding source 27, and the other end is electrically connected to the connecting contact piece 182. In a third embodiment, referring to FIG. 10, the WiFi antenna can be a Monopole antenna. One end of the radiating portion 613 is electrically connected to the first feeding source 27, and the other end extends to be spaced apart from the second radiating portion 22. One end of the radiation portion 613 connected to the first feed source 27 is also electrically connected to the connection contact 182 through another load element 622.
所述天線結構100通過在第一延伸部16與第二延伸部18之間串接一負載元件220，可提升間距較近的輻射部13與第二輻射段22之間的隔離度，較佳地較低了相互的干擾，提升了天線結構100的輻射品質。另外，所述天線結構100通過設置所述殼體11，且所述殼體11上的斷點均設置於所述金屬邊框113上，並未設置於所述背板112上，即所述背板112上並沒有絕緣的開槽、斷線或斷點，使得所述背板112可避免由於開槽、斷線或斷點的設置而影響背板112的完整性和美觀性。The antenna structure 100 can improve the isolation between the radiating portion 13 and the second radiating portion 22 with a relatively close spacing by connecting a load member 220 between the first extending portion 16 and the second extending portion 18. The ground is lower in mutual interference, which improves the radiation quality of the antenna structure 100. In addition, the antenna structure 100 is provided with the housing 11 , and the break points on the housing 11 are disposed on the metal frame 113 , and are not disposed on the back plate 112 , that is, the back There are no insulated slots, breaks, or breaks on the board 112 such that the backing plate 112 can avoid affecting the integrity and aesthetics of the backing board 112 due to the provision of slots, breaks, or breaks.
以上所述，僅為本發明的較佳實施例，並非是對本發明作任何形式上的限定。另外，本領域技術人員還可在本發明精神內做其它變化，當然，這些依據本發明精神所做的變化，都應包含在本發明所要求保護的範圍之內。The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. In addition, those skilled in the art can make other changes in the spirit of the present invention. Of course, the changes made in accordance with the spirit of the present invention should be included in the scope of the present invention.
100‧‧‧天線結構 100‧‧‧Antenna structure
11‧‧‧殼體 11‧‧‧Shell
111‧‧‧前框 111‧‧‧ front box
112‧‧‧背板 112‧‧‧ Backplane
113‧‧‧金屬邊框 113‧‧‧Metal border
114‧‧‧容置空間 114‧‧‧ accommodating space
115‧‧‧頂部 115‧‧‧ top
116‧‧‧第一側部 116‧‧‧First side
117‧‧‧第二側部 117‧‧‧ second side
1112‧‧‧第一斷點 1112‧‧‧First breakpoint
1114‧‧‧第二斷點 1114‧‧‧second breakpoint
24‧‧‧第一輻射段 24‧‧‧First radiant section
22‧‧‧第二輻射段 22‧‧‧second radiant section
26‧‧‧第三輻射段 26‧‧‧The third radiant section
13、513、613‧‧‧輻射部 13,513,613‧‧‧ Radiation Department
132‧‧‧第一突出部 132‧‧‧First protrusion
134‧‧‧第二突出部 134‧‧‧second protrusion
136‧‧‧對位孔 136‧‧‧ alignment hole
14‧‧‧饋入部 14‧‧‧Feeding Department
15‧‧‧接地部 15‧‧‧ Grounding Department
152‧‧‧第一臂 152‧‧‧First arm
154‧‧‧第二臂 154‧‧‧second arm
156‧‧‧第三臂 156‧‧‧ third arm
157‧‧‧接觸孔 157‧‧‧Contact hole
16‧‧‧第一延伸部 16‧‧‧First Extension
18‧‧‧第二延伸部 18‧‧‧Second extension
182‧‧‧連接觸片 182‧‧‧Connecting contacts
20‧‧‧第一匹配電路 20‧‧‧First matching circuit
220、622‧‧‧負載元件 220, 622‧‧‧ load components
32‧‧‧第二匹配電路 32‧‧‧Second matching circuit
222‧‧‧負載單元 222‧‧‧Load unit
262‧‧‧第三延伸部 262‧‧‧ Third Extension
36‧‧‧第三匹配電路 36‧‧‧ Third matching circuit
38‧‧‧第四匹配電路 38‧‧‧fourth matching circuit
34‧‧‧切換電路 34‧‧‧Switching circuit
200‧‧‧無線通訊裝置 200‧‧‧Wireless communication device
201‧‧‧顯示單元 201‧‧‧Display unit
202‧‧‧後置鏡頭 202‧‧‧ Rear lens
210‧‧‧電路板 210‧‧‧ boards
27‧‧‧第一饋入源 27‧‧‧First feed source
28‧‧‧第二饋入源 28‧‧‧second feed source
29‧‧‧第三饋入源 29‧‧‧ Third feed source
圖1為本發明第一實施例的天線結構應用至無線通訊裝置的示意圖。 圖2為圖1所示無線通訊裝置的立體分解示意圖。 圖3為圖2所示天線結構的組裝示意圖。 圖4為圖3所示的天線結構的部分平面示意圖。 圖5為圖2所示天線結構的平面示意圖。 圖6為本發明第一實施例的天線結構工作時的回波損耗曲線圖。 圖7為本發明第一實施例的天線結構工作時的隔離度曲線圖。 圖8為本發明第一實施例的天線結構工作時的效率曲線圖。 圖9為本發明第二實施例的天線結構的部分平面示意圖。 圖10為本發明第三實施例的天線結構的部分平面示意圖。1 is a schematic diagram of an antenna structure according to a first embodiment of the present invention applied to a wireless communication device. 2 is a perspective exploded view of the wireless communication device shown in FIG. 1. 3 is a schematic view showing the assembly of the antenna structure shown in FIG. 2. 4 is a partial plan view showing the antenna structure shown in FIG. 3. FIG. 5 is a schematic plan view of the antenna structure shown in FIG. 2. Fig. 6 is a graph showing the return loss of the antenna structure in the first embodiment of the present invention. Fig. 7 is a graph showing the isolation of the antenna structure in the first embodiment of the present invention. Fig. 8 is a graph showing the efficiency of the antenna structure in the first embodiment of the present invention. Figure 9 is a partial plan view showing the structure of an antenna according to a second embodiment of the present invention. Figure 10 is a partial plan view showing the structure of an antenna according to a third embodiment of the present invention.
無no
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106137419A TWI663779B (en) | 2017-10-30 | 2017-10-30 | Antenna structure and wireless communication device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| TW106137419A TWI663779B (en) | 2017-10-30 | 2017-10-30 | Antenna structure and wireless communication device using same |
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| WO2022142847A1 (en) * | 2020-12-31 | 2022-07-07 | Oppo广东移动通信有限公司 | Electronic device capable of improving antenna performance |
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| CN103219582B (en) * | 2012-01-20 | 2016-08-03 | 宏碁股份有限公司 | Communicator and antenna structure thereof |
| CN204289710U (en) * | 2014-11-17 | 2015-04-22 | 惠州硕贝德无线科技股份有限公司 | A kind of LTE metal edge frame antenna |
| CN105006645A (en) * | 2015-08-12 | 2015-10-28 | 宇龙计算机通信科技(深圳)有限公司 | Combined antenna system and mobile terminal |
| WO2017156906A1 (en) * | 2016-03-18 | 2017-09-21 | 广东欧珀移动通信有限公司 | Metal shell, antenna apparatus, and mobile terminal |
| CN106229674B (en) * | 2016-07-18 | 2019-08-30 | 瑞声精密制造科技(常州)有限公司 | Full frequency band metal frame antenna structure |
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| WO2022142847A1 (en) * | 2020-12-31 | 2022-07-07 | Oppo广东移动通信有限公司 | Electronic device capable of improving antenna performance |
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