TWI617095B - Electronic device - Google Patents
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- TWI617095B TWI617095B TW105135210A TW105135210A TWI617095B TW I617095 B TWI617095 B TW I617095B TW 105135210 A TW105135210 A TW 105135210A TW 105135210 A TW105135210 A TW 105135210A TW I617095 B TWI617095 B TW I617095B
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Abstract
一種電子裝置，包括接地面、第一輻射元件與第二輻射元件。接地面的邊緣與第一輻射元件的開口槽沿著預設方向延伸。第一輻射元件的第一端具有饋入點，且第二輻射元件的第一端電性連接第一輻射元件。第一與第二輻射元件的第二端分別為一開路端。第一與第二輻射元件形成操作在第一頻段與第二頻段的單極天線。單極天線中之第一共振路徑的長度為第一頻段之最低頻率的1/2波長，且單極天線中之第二共振路徑的長度為第二頻段之最低頻率的1/2波長。An electronic device includes a ground plane, a first radiating element and a second radiating element. The edge of the ground plane and the open slot of the first radiating element extend in a predetermined direction. The first end of the first radiating element has a feed point, and the first end of the second radiating element is electrically connected to the first radiating element. The second ends of the first and second radiating elements are respectively an open end. The first and second radiating elements form a monopole antenna operating in the first frequency band and the second frequency band. The length of the first resonant path in the monopole antenna is 1/2 wavelength of the lowest frequency of the first frequency band, and the length of the second resonant path in the monopole antenna is 1/2 wavelength of the lowest frequency of the second frequency band.
Description
本發明是有關於一種電子裝置，且特別是有關於一種包括單極天線的電子裝置。The present invention relates to an electronic device, and more particularly to an electronic device including a monopole antenna.
近年來，具有金屬質感的電子裝置(例如，平板電腦、筆記型電腦)受到消費者的青睞。例如，具有金屬質感的殼體是近年來非常熱門的外觀設計，且因應電子裝置中之天線元件的設置，殼體的邊框上大多設有天線窗(antenna window)。此外，現有的電子裝置更導入了窄邊框的機身設計，以突顯產品的獨特性與外觀設計。然而，在加入窄邊框的外觀設計後，電子裝置中可用以設置天線元件/天線窗的空間也就越來越少。尤其是，在窄邊框的外觀設計下，天線元件/天線窗在Y軸方向上的高度受到極大的限制，且天線元件往往會受到金屬環境的影響而無法滿足電子裝置的應用需求。In recent years, electronic devices with metal textures (for example, tablet computers, notebook computers) have been favored by consumers. For example, a housing having a metallic texture is a very popular design in recent years, and an antenna window is often provided on the frame of the housing in response to the arrangement of the antenna elements in the electronic device. In addition, the existing electronic device has introduced a narrow frame body design to highlight the uniqueness and design of the product. However, after the design of the narrow bezel is added, the space available in the electronic device to set the antenna element/antenna window is less and less. In particular, under the design of the narrow bezel, the height of the antenna element/antenna window in the Y-axis direction is greatly limited, and the antenna element is often affected by the metal environment and cannot meet the application requirements of the electronic device.
本發明提供一種電子裝置，其單極天線具有低姿態的特性，並可降低周遭金屬環境所造成的影響。The present invention provides an electronic device in which the monopole antenna has a low profile characteristic and can reduce the influence of the surrounding metal environment.
本發明的電子裝置，包括接地面、第一輻射元件與第二輻射元件。接地面包括沿著預設方向延伸的邊緣。第一輻射元件鄰近接地面的邊緣，並包括沿著預設方向延伸的開口槽。第一輻射元件的第一端具有饋入點，第一輻射元件的第二端為第一開路端，且第一輻射元件的第一端與第二端位在開口槽之開口的兩側。第二輻射元件的第一端電性連接第一輻射元件，且第二輻射元件的第二端為第二開路端。第一輻射元件與第二輻射元件形成操作在第一頻段與第二頻段的單極天線。單極天線包括從饋入點延伸至第一開路端的第一共振路徑以及從饋入點延伸至第二開路端的第二共振路徑。第一共振路徑的長度為第一頻段之最低頻率的1/2波長，且第二共振路徑的長度為第二頻段之最低頻率的1/2波長。The electronic device of the present invention includes a ground plane, a first radiating element and a second radiating element. The ground plane includes an edge that extends along a predetermined direction. The first radiating element is adjacent to an edge of the ground plane and includes an open slot extending along a predetermined direction. The first end of the first radiating element has a feeding point, the second end of the first radiating element is a first open end, and the first end and the second end of the first radiating element are located on opposite sides of the opening of the open slot. The first end of the second radiating element is electrically connected to the first radiating element, and the second end of the second radiating element is a second open end. The first radiating element and the second radiating element form a monopole antenna operating in the first frequency band and the second frequency band. The monopole antenna includes a first resonant path extending from the feed point to the first open end and a second resonant path extending from the feed point to the second open end. The length of the first resonant path is 1/2 wavelength of the lowest frequency of the first frequency band, and the length of the second resonant path is 1/2 wavelength of the lowest frequency of the second frequency band.
在本發明的一實施例中，上述的第一輻射元件包括第一區段、第二區段與第三區段。其中，第一區段的第一端具有饋入點。第二區段的第一端形成第一開路端。第三區段的第一端電性連接第一區段的第二端，且第三區段的第二端電性連接第二區段的第二端。第一區段與第二區段分別沿著預設方向延伸，且第一區段的長度與第二區段的長度分別為第三區段之寬度的2倍以上。In an embodiment of the invention, the first radiating element comprises a first section, a second section and a third section. Wherein the first end of the first section has a feed point. The first end of the second section forms a first open end. The first end of the third section is electrically connected to the second end of the first section, and the second end of the third section is electrically connected to the second end of the second section. The first section and the second section respectively extend along a predetermined direction, and the length of the first section and the length of the second section are respectively more than twice the width of the third section.
基於上述，本發明之電子裝置中的第一輻射元件與第二輻射元件可形成單極天線，且第一輻射元件中的開口槽與接地面的邊緣皆沿著預設方向延伸。藉此，將有助於縮減單極天線的高度。此外，單極天線可抵抗周遭金屬環境所造成的影響，從而可符合電子裝置在窄邊框之外觀設計下的應用需求。Based on the above, the first radiating element and the second radiating element in the electronic device of the present invention may form a monopole antenna, and the open slots in the first radiating element and the edges of the ground plane extend in a predetermined direction. Thereby, it will help to reduce the height of the monopole antenna. In addition, the monopole antenna can withstand the effects of the surrounding metal environment, so that it can meet the application requirements of the electronic device in the design of the narrow bezel.
為讓本發明的上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。The above described features and advantages of the invention will be apparent from the following description.
圖1是依照本發明一實施例之電子裝置的示意圖。如圖1所示，電子裝置100包括接地面110、第一輻射元件120以及第二輻射元件130。其中，接地面110包括邊緣111，且邊緣111沿著預設方向(例如，X軸方向)延伸。第一輻射元件120鄰近接地面110的邊緣111，且第一輻射元件120包括開口槽101。1 is a schematic diagram of an electronic device in accordance with an embodiment of the present invention. As shown in FIG. 1, the electronic device 100 includes a ground plane 110, a first radiating element 120, and a second radiating element 130. Wherein, the ground plane 110 includes an edge 111, and the edge 111 extends along a preset direction (for example, an X-axis direction). The first radiating element 120 is adjacent to the edge 111 of the ground plane 110 and the first radiating element 120 includes an open slot 101.
更進一步來看，第一輻射元件120的第一端具有饋入點FP1，且第一輻射元件120的第二端為第一開路端。此外，第一輻射元件120的第一端與第二端是位在開口槽101之開口的兩側。由於第一輻射元件120中的開口槽101是沿著預設方向(例如，X軸方向)延伸，因此將有助於延長第一輻射元件120在預設方向上的尺寸(例如，第一輻射元件120的長度D11)，從而有助於降低第一輻射元件120在垂直於預設方向之方向上的尺寸(例如，第一輻射元件120的寬度D12)。在一實施例中，第一輻射元件120的長寬比值，亦即長度D11與寬度D12的比值，不小於4。Further, the first end of the first radiating element 120 has a feed point FP1, and the second end of the first radiating element 120 is a first open end. In addition, the first end and the second end of the first radiating element 120 are located on opposite sides of the opening of the open slot 101. Since the open slot 101 in the first radiating element 120 extends in a predetermined direction (eg, the X-axis direction), it will help to lengthen the first radiating element 120 in a predetermined direction (eg, the first radiation) The length of the element 120 is D11), thereby helping to reduce the size of the first radiating element 120 in a direction perpendicular to the predetermined direction (eg, the width D12 of the first radiating element 120). In an embodiment, the aspect ratio of the first radiating element 120, that is, the ratio of the length D11 to the width D12, is not less than 4.
第二輻射元件130的第一端電性連接第一輻射元件120，且第二輻射元件130的第二端為第二開路端。此外，第一輻射元件120與第二輻射元件130可形成一單極天線(monopole antenna)140，且單極天線140可操作在第一頻段與第二頻段。舉例來說，單極天線140包括第一共振路徑151與第二共振路徑152。其中，第一共振路徑151是從饋入點FP1延伸至第一開路端，且單極天線140可透過第一共振路徑151操作在第一頻段。第二共振路徑152是從饋入點FP1延伸至第二開路端，且單極天線140可透過第二共振路徑152操作在第二頻段。The first end of the second radiating element 130 is electrically connected to the first radiating element 120, and the second end of the second radiating element 130 is a second open end. In addition, the first radiating element 120 and the second radiating element 130 may form a monopole antenna 140, and the monopole antenna 140 may operate in the first frequency band and the second frequency band. For example, monopole antenna 140 includes a first resonant path 151 and a second resonant path 152. The first resonant path 151 extends from the feeding point FP1 to the first open end, and the monopole antenna 140 can operate in the first frequency band through the first resonant path 151. The second resonant path 152 extends from the feed point FP1 to the second open end, and the monopole antenna 140 can operate in the second frequency band through the second resonant path 152.
值得一提的是，一般的單極天線是採用1/4波長的共振機制。但是，圖1實施例中的單極天線140並非是採用1/4波長的共振機制，以藉此抵抗或是降低周遭金屬環境所造成的影響。具體而言，第一共振路徑151的長度為第一頻段之最低頻率的1/2波長，且第二共振路徑152的長度為第二頻段之最低頻率的1/2波長。It is worth mentioning that the general monopole antenna uses a 1/4 wavelength resonance mechanism. However, the monopole antenna 140 in the embodiment of FIG. 1 does not employ a 1/4 wavelength resonant mechanism to thereby resist or reduce the effects of the surrounding metal environment. Specifically, the length of the first resonant path 151 is 1/2 wavelength of the lowest frequency of the first frequency band, and the length of the second resonant path 152 is 1/2 wavelength of the lowest frequency of the second frequency band.
藉此，金屬環境所引發的電容效應，例如：接地面110與第一輻射元件120之間的電容效應，以及接地面110與第二輻射元件130之間的電容效應，其對單極天線140所造成的影響，將可透過第一輻射元件120與第二輻射元件130所形成的等效電感來予以降低，從而有助於提升單極天線140的輻射效率。此外，隨著開口槽101在預設方向(例如，X軸方向)上的延伸，將可降低第一輻射元件120的寬度D12，從而有助於縮減單極天線140在Y軸方向上的高度D13(亦即，天線窗的高度)。換言之，單極天線140具有低姿態(low-profile)的特性，並可抵抗周遭金屬環境所造成的影響。因此，單極天線140將可符合電子裝置100在窄邊框之外觀設計下的應用需求。Thereby, the capacitive effect induced by the metal environment, for example, the capacitive effect between the ground plane 110 and the first radiating element 120, and the capacitive effect between the ground plane 110 and the second radiating element 130, to the monopole antenna 140 The resulting effect will be reduced by the equivalent inductance formed by the first radiating element 120 and the second radiating element 130, thereby contributing to the improvement of the radiation efficiency of the monopole antenna 140. Further, as the opening groove 101 extends in a predetermined direction (for example, the X-axis direction), the width D12 of the first radiating element 120 can be lowered, thereby contributing to reducing the height of the monopole antenna 140 in the Y-axis direction. D13 (ie, the height of the antenna window). In other words, the monopole antenna 140 has a low-profile characteristic and is resistant to the effects of the surrounding metal environment. Therefore, the monopole antenna 140 will conform to the application requirements of the electronic device 100 under the design of a narrow bezel.
舉例來說，圖2是依照本發明一實施例之電子裝置的外觀示意圖。如圖2所示，電子裝置100可例如是一筆記型電腦，且電子裝置100更包括第一機體210、第二機體220以及樞軸230。其中，樞軸230連接在第一機體210與第二機體220之間，且第一機體210與第二機體220可藉由樞軸而相對轉動。此外，圖2更標示出單極天線140在第一機體210中的位置。For example, FIG. 2 is a schematic diagram of the appearance of an electronic device according to an embodiment of the invention. As shown in FIG. 2 , the electronic device 100 can be, for example, a notebook computer, and the electronic device 100 further includes a first body 210 , a second body 220 , and a pivot 230 . The pivot 230 is connected between the first body 210 and the second body 220, and the first body 210 and the second body 220 are relatively rotatable by a pivot. Furthermore, FIG. 2 further indicates the position of the monopole antenna 140 in the first body 210.
具體而言，第一機體210的外表面可由一背蓋所構成，且第一機體210的內表面可由一邊框240所構成。其中，邊框240包括導電框體241與絕緣殼體242。導電框體241環繞設置在第一機體210上的顯示器250，且導電框體241電性連接至接地面110。絕緣殼體242可為長條狀，且絕緣殼體242連接導電框體241的一側壁。此外，單極天線140設置在第一機體210內，並面對絕緣殼體242。Specifically, the outer surface of the first body 210 may be formed by a back cover, and the inner surface of the first body 210 may be formed by a frame 240. The frame 240 includes a conductive frame 241 and an insulating case 242. The conductive frame 241 surrounds the display 250 disposed on the first body 210 , and the conductive frame 241 is electrically connected to the ground plane 110 . The insulating housing 242 may be elongated, and the insulating housing 242 is connected to a sidewall of the conductive frame 241. Further, the monopole antenna 140 is disposed within the first body 210 and faces the insulating housing 242.
換言之，在整體配置上，第一輻射元件120與第二輻射元件130分別面對絕緣殼體242。亦即，第一輻射元件120與第二輻射元件130在第一機體210之外表面上的正投影與絕緣殼體242在第一機體210之外表面上的正投影相互重疊。藉此，絕緣殼體242將可用以形成單極天線140的天線窗。此外，在一實施例中，絕緣殼體242的寬度，亦即單極天線140/天線窗的高度D13，可介在2.5毫米至4毫米之間。In other words, in an overall configuration, the first radiating element 120 and the second radiating element 130 respectively face the insulating housing 242. That is, the orthographic projection of the first radiating element 120 and the second radiating element 130 on the outer surface of the first body 210 overlaps with the orthographic projection of the insulating housing 242 on the outer surface of the first body 210. Thereby, the insulative housing 242 will be available to form the antenna window of the monopole antenna 140. Moreover, in one embodiment, the width of the insulative housing 242, that is, the height D13 of the monopole antenna 140/antenna window, may be between 2.5 mm and 4 mm.
舉例來說，單極天線140所涵蓋的第一頻段可例如是2.4GHz，單極天線140所涵蓋的第二頻段可例如是5GHz，且單極天線140/天線窗的高度D13可例如是3毫米。此外，絕緣殼體242與顯示器250之間的間距D21可例如是2毫米，以藉此形成單極天線140的焊接區。其中，單極天線140在與後端電路(例如，收發器)電性連接上所需的走線(例如，同軸纜線)將可配置在焊接區。此外，單極天線140的饋入點FP1是位在整體天線結構的單側(例如，右側)。藉此，將有利於單極天線140與後端電路的連接，從而有助於簡化單極天線140在組裝上之走線的複雜度。For example, the first frequency band covered by the monopole antenna 140 may be, for example, 2.4 GHz, the second frequency band covered by the monopole antenna 140 may be, for example, 5 GHz, and the height D13 of the monopole antenna 140/antenna window may be, for example, 3 Millimeter. Further, the spacing D21 between the insulative housing 242 and the display 250 may be, for example, 2 mm to thereby form a land of the monopole antenna 140. Wherein, the traces (eg, coaxial cables) required by the monopole antenna 140 to electrically connect to the back end circuitry (eg, the transceiver) will be configurable in the pads. Furthermore, the feed point FP1 of the monopole antenna 140 is located on one side (eg, the right side) of the overall antenna structure. Thereby, the connection of the monopole antenna 140 to the back end circuit will be facilitated, thereby contributing to simplifying the complexity of the monopole antenna 140 in the assembly.
請繼續參照圖1。第一輻射元件120包括第一區段121、第二區段122與第三區段123。其中，第一區段121的第一端具有饋入點FP1，且第一區段121可形成開口槽101的第一側壁。第二區段122的第一端用以形成第一開路端，且第二區段122可形成開口槽101的第二側壁。第三區段123的第一端電性連接第一區段121的第二端，且第三區段123的第二端電性連接第二區段122的第二端。此外，第三區段123可形成開口槽101的底部。Please continue to refer to Figure 1. The first radiating element 120 includes a first section 121, a second section 122, and a third section 123. The first end of the first section 121 has a feed point FP1, and the first section 121 can form a first side wall of the open slot 101. The first end of the second section 122 is used to form a first open end, and the second section 122 is formed to form a second side wall of the open slot 101. The first end of the third section 123 is electrically connected to the second end of the first section 121 , and the second end of the third section 123 is electrically connected to the second end of the second section 122 . Further, the third section 123 may form the bottom of the open groove 101.
第二輻射元件130的第一端電性連接第三區段123的第二端，且第三區段123位在第二輻射元件130與第二區段122之間。亦即，第二輻射元件130、第三區段123以及第二區段122沿著預設方向(例如，X軸方向)依序排列。此外，在一實施例中，第一區段121、第二區段122與第二輻射元件130平行於接地面110的邊緣111，且第三區段123垂直於接地面110的邊緣111。The first end of the second radiating element 130 is electrically connected to the second end of the third section 123, and the third section 123 is located between the second radiating element 130 and the second section 122. That is, the second radiating element 130, the third section 123, and the second section 122 are sequentially arranged along a predetermined direction (for example, the X-axis direction). Moreover, in an embodiment, the first section 121, the second section 122 and the second radiating element 130 are parallel to the edge 111 of the ground plane 110, and the third section 123 is perpendicular to the edge 111 of the ground plane 110.
在整體架構上，第一至第三區段121~123可形成第一共振路徑151，且第一區段121、第三區段123與第二輻射元件130可形成第二共振路徑152。此外，單極天線140可透過饋入點FP1接收來自電子裝置100中之收發器的饋入訊號。藉此，在饋入訊號的激發下，單極天線140將可透過第一共振路徑151操作在第一頻段，並可透過第二共振路徑152操作在第二頻段。In the overall architecture, the first to third sections 121-123 may form a first resonant path 151, and the first section 121, the third section 123, and the second radiating element 130 may form a second resonant path 152. In addition, the monopole antenna 140 can receive the feed signal from the transceiver in the electronic device 100 through the feed point FP1. Thereby, under the excitation of the feed signal, the monopole antenna 140 will be operable in the first frequency band through the first resonance path 151 and in the second frequency band through the second resonance path 152.
值得一提的是，第一區段121與第二區段122是分別沿著預設方向(例如，X軸方向)延伸，因此可延長第一區段121的長度與第二區段122的長度。此外，第一共振路徑151的長度約為第一區段121之長度、第二區段122之長度與第三區段123之寬度的總和。因此，在第一共振路徑151的長度維持固定的情況下，隨著第一區段151之長度與第二區段122之長度的增加，將有助於縮減第三區段123的寬度，亦即將有助於縮減第一輻射元件120的寬度D12。在一實施例中，第一區段121的長度與第二區段122的長度可分別為第三區段123之寬度的2倍以上。It is worth mentioning that the first section 121 and the second section 122 respectively extend along a preset direction (for example, the X-axis direction), so that the length of the first section 121 and the second section 122 can be extended. length. Further, the length of the first resonant path 151 is approximately the sum of the length of the first section 121, the length of the second section 122, and the width of the third section 123. Therefore, in the case where the length of the first resonance path 151 is maintained constant, as the length of the first section 151 and the length of the second section 122 increase, it will help to reduce the width of the third section 123, It will soon help to reduce the width D12 of the first radiating element 120. In an embodiment, the length of the first section 121 and the length of the second section 122 may be more than twice the width of the third section 123, respectively.
電子裝置100更包括基板160。其中，第一輻射元件120、第二輻射元件130與接地面110設置在基板160的一表面161上。換言之，單極天線140可例如是一平面天線(planar antenna)。在一實施例中，第一區段121、第二區段122、第三區段123以及第二輻射元件130可分別由一平面金屬線所構成。更進一步來看，第一輻射元件120與第二輻射元件130位在基板160的側邊與接地面110的邊緣111之間。此外，基板160的側邊與接地面110的邊緣111之間的間距，亦即單極天線140/天線窗的高度D13，介在2.5毫米至4毫米之間。在一實施例中，基板160可例如是貼附在圖2之絕緣殼體242的內表面，且單極天線140可例如是隔著基板160面對絕緣殼體242。The electronic device 100 further includes a substrate 160. The first radiating element 120, the second radiating element 130 and the ground plane 110 are disposed on a surface 161 of the substrate 160. In other words, the monopole antenna 140 can be, for example, a planar antenna. In an embodiment, the first section 121, the second section 122, the third section 123, and the second radiating element 130 may each be formed by a planar metal line. Furthermore, the first radiating element 120 and the second radiating element 130 are located between the side of the substrate 160 and the edge 111 of the ground plane 110. In addition, the spacing between the sides of the substrate 160 and the edge 111 of the ground plane 110, that is, the height D13 of the monopole antenna 140/antenna window, is between 2.5 mm and 4 mm. In an embodiment, the substrate 160 can be, for example, attached to the inner surface of the insulative housing 242 of FIG. 2, and the monopole antenna 140 can face the insulative housing 242, for example, via the substrate 160.
圖3是依照本發明另一實施例之電子裝置的示意圖。相較於圖1實施例，圖3之電子裝置300中的單極天線340更包括第一匹配元件310與第二匹配元件320。其中，第一匹配元件310與第二輻射元件130相隔一耦合間距，且第一匹配元件310更與第一輻射元件120中的第三區段123相隔一耦合間距。第二匹配元件320電性連接在第一匹配元件310與接地面110之間。3 is a schematic diagram of an electronic device in accordance with another embodiment of the present invention. Compared with the embodiment of FIG. 1, the monopole antenna 340 in the electronic device 300 of FIG. 3 further includes a first matching component 310 and a second matching component 320. The first matching component 310 is spaced apart from the second radiating component 130 by a coupling pitch, and the first matching component 310 is further spaced apart from the third segment 123 of the first radiating component 120 by a coupling pitch. The second matching component 320 is electrically connected between the first matching component 310 and the ground plane 110.
具體而言，第一匹配元件310包括第一矩形金屬片311與第二矩形金屬片312。其中，第一矩形金屬片311的第一邊緣與第二輻射元件130相隔一耦合間距，且第一矩形金屬片311的第二邊緣與第一輻射元件120中的第三區段123相隔一耦合間距。此外，第一矩形金屬片311的第三邊緣電性連接第二矩形金屬片312。第二匹配元件320可例如是一金屬線。此外，金屬線的第一端電性連接第一矩形金屬片311與第二矩形金屬片312，且金屬線的第二端電性連接至接地面110的邊緣111。Specifically, the first matching component 310 includes a first rectangular metal piece 311 and a second rectangular metal piece 312. The first edge of the first rectangular metal piece 311 is spaced apart from the second radiating element 130 by a coupling pitch, and the second edge of the first rectangular metal piece 311 is coupled to the third section 123 of the first radiating element 120. spacing. In addition, the third edge of the first rectangular metal piece 311 is electrically connected to the second rectangular metal piece 312. The second matching component 320 can be, for example, a metal wire. In addition, the first end of the metal wire is electrically connected to the first rectangular metal piece 311 and the second rectangular metal piece 312 , and the second end of the metal wire is electrically connected to the edge 111 of the ground plane 110 .
在操作上，收發器所產生的饋入訊號可透過耦合間距，從第一輻射元件120與第二輻射元件130耦合至第一匹配元件310。此外，第一匹配元件310與第二匹配元件320可用以調整單極天線340在第二頻段下的阻抗匹配，從而可進一步提升單極天線340在第二頻段下的輻射效率以及第二頻段的頻寬。值得一提的是，本領域具有通常知識者可依據設計所需選擇性地移除第二匹配元件320。亦即，在另一實施例中，第一匹配元件310可浮置在接地面110的上方，亦即第一匹配元件310與接地面110在電性上可互不相連，且此時的電子裝置300可僅透過第一匹配元件310來調整單極天線340在第二頻段下的阻抗匹配。In operation, the feed signal generated by the transceiver can be coupled from the first radiating element 120 and the second radiating element 130 to the first matching element 310 through the coupling pitch. In addition, the first matching component 310 and the second matching component 320 can be used to adjust the impedance matching of the monopole antenna 340 in the second frequency band, thereby further improving the radiation efficiency of the monopole antenna 340 in the second frequency band and the second frequency band. bandwidth. It is worth mentioning that a person skilled in the art can selectively remove the second matching component 320 according to the design requirements. That is, in another embodiment, the first matching component 310 can be floated above the ground plane 110, that is, the first matching component 310 and the ground plane 110 are electrically disconnected from each other, and the electrons at this time The device 300 can adjust the impedance matching of the monopole antenna 340 in the second frequency band only through the first matching component 310.
圖4是依照本發明一實施例之單極天線的S參數(S11)圖。其中，曲線410是在僅配置第一匹配元件310下單極天線340的S參數(S11)，且曲線420是在同時配置兩匹配元件310與320下單極天線340的S參數(S11)。如曲線410所示，在第一匹配元件310浮置的形況下，單極天線340所涵蓋的第二頻段可符合電子裝置300在5GHz頻段下的應用需求。此外，如曲線420所示，隨著第二匹配元件320的加入，將可進一步擴展單極天線340之第二頻段(亦即，5GHz頻段)的頻寬。此外，圖5是依照本發明一實施例之單極天線的輻射效率圖。其中，曲線510與520分別是在未設置以及設置兩匹配元件310與320下的輻射效率。如圖5所示，隨著兩匹配元件310與320的加入，單極天線340在第二頻段的輻射效率約可提升0.7dB~1.5dB。4 is a S-parameter (S11) diagram of a monopole antenna in accordance with an embodiment of the present invention. Here, the curve 410 is an S parameter in which only the monopole antenna 340 of the first matching element 310 is disposed (S11), and the curve 420 is an S parameter of the monopole antenna 340 under the two matching elements 310 and 320 (S11). As shown by the curve 410, the second frequency band covered by the monopole antenna 340 can conform to the application requirements of the electronic device 300 in the 5 GHz band under the condition that the first matching component 310 is floating. Moreover, as shown by curve 420, as the second matching component 320 is added, the bandwidth of the second frequency band of the monopole antenna 340 (i.e., the 5 GHz band) can be further expanded. In addition, FIG. 5 is a radiation efficiency diagram of a monopole antenna in accordance with an embodiment of the present invention. Among them, the curves 510 and 520 are the radiation efficiencies under the setting and setting of the two matching elements 310 and 320, respectively. As shown in FIG. 5, with the addition of the two matching elements 310 and 320, the radiation efficiency of the monopole antenna 340 in the second frequency band can be increased by about 0.7 dB to 1.5 dB.
綜上所述，本發明之電子裝置中的第一輻射元件與第二輻射元件可形成單極天線。此外，第一輻射元件的開口槽與接地面的邊緣皆沿著預設方向延伸。藉此，將有助於縮減單極天線或是天線窗在Y軸方向上的高度。此外，單極天線中的兩共振路徑為其所對應之兩頻段之最低頻率的1/2波長，從而可降低金屬環境所引發之電容效應對單極天線所造成的影響。換言之，單極天線具有低姿態的特性，並可抵抗周遭金屬環境所造成的影響。藉此，單極天線將可符合電子裝置在窄邊框之外觀設計下的應用需求。除此之外，單極天線的饋入點是位在整體天線結構的單側，從而有助於簡化單極天線在組裝上之走線的複雜度。In summary, the first radiating element and the second radiating element in the electronic device of the present invention can form a monopole antenna. In addition, both the open slot of the first radiating element and the edge of the ground plane extend along a predetermined direction. Thereby, it will help to reduce the height of the monopole antenna or the antenna window in the Y-axis direction. In addition, the two resonant paths in the monopole antenna are 1/2 wavelength of the lowest frequency of the two frequency bands corresponding thereto, thereby reducing the influence of the capacitive effect caused by the metal environment on the monopole antenna. In other words, the monopole antenna has a low profile and is resistant to the effects of the surrounding metal environment. Thereby, the monopole antenna will meet the application requirements of the electronic device under the design of the narrow bezel. In addition, the feed point of the monopole antenna is located on one side of the overall antenna structure, which helps to simplify the complexity of the monopole antenna in the assembly.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明的精神和範圍內，當可作些許的更動與潤飾，故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.
100、300‧‧‧電子裝置
110‧‧‧接地面
111‧‧‧接地面的邊緣
120‧‧‧第一輻射元件
121‧‧‧第一區段
122‧‧‧第二區段
123‧‧‧第三區段
130‧‧‧第二輻射元件
101‧‧‧開口槽
140、340‧‧‧單極天線
151‧‧‧第一共振路徑
152‧‧‧第二共振路徑
160‧‧‧基板
161‧‧‧表面
FP1‧‧‧饋入點
D11‧‧‧長度
D12‧‧‧寬度
D13‧‧‧高度
210‧‧‧第一機體
220‧‧‧第二機體
230‧‧‧樞軸
240‧‧‧邊框
241‧‧‧導電框體
242‧‧‧絕緣殼體
250‧‧‧顯示器
D21‧‧‧間距
310‧‧‧第一匹配元件
311‧‧‧第一矩形金屬片
312‧‧‧第二矩形金屬片
320‧‧‧第二匹配元件
410、420、510、520‧‧‧曲線100, 300‧‧‧ electronic devices
110‧‧‧ ground plane
111‧‧‧The edge of the ground plane
120‧‧‧First radiating element
121‧‧‧First section
122‧‧‧second section
123‧‧‧third section
130‧‧‧Second radiating element
101‧‧‧Open slot
140, 340‧‧‧ monopole antenna
151‧‧‧First resonance path
152‧‧‧Second resonance path
160‧‧‧Substrate
161‧‧‧ surface
FP1‧‧‧Feeding point
D11‧‧‧ length
D12‧‧‧Width
D13‧‧‧ Height
210‧‧‧First body
220‧‧‧Second body
230‧‧‧ pivot
240‧‧‧Border
241‧‧‧Electrical frame
242‧‧‧Insulated housing
250‧‧‧ display
D21‧‧‧ spacing
310‧‧‧First matching component
311‧‧‧First rectangular metal sheet
312‧‧‧Second rectangular metal sheet
320‧‧‧Second matching component
410, 420, 510, 520‧‧‧ curves
圖1是依照本發明一實施例之電子裝置的示意圖。 圖2是依照本發明一實施例之電子裝置的外觀示意圖。 圖3是依照本發明另一實施例之電子裝置的示意圖。 圖4是依照本發明一實施例之單極天線的S參數(S11)圖。 圖5是依照本發明一實施例之單極天線的輻射效率圖。1 is a schematic diagram of an electronic device in accordance with an embodiment of the present invention. 2 is a schematic diagram of the appearance of an electronic device according to an embodiment of the invention. 3 is a schematic diagram of an electronic device in accordance with another embodiment of the present invention. 4 is a S-parameter (S11) diagram of a monopole antenna in accordance with an embodiment of the present invention. Figure 5 is a graph showing the radiation efficiency of a monopole antenna in accordance with an embodiment of the present invention.
Claims (10)
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| US20070080871A1 (en) * | 2003-04-26 | 2007-04-12 | Zhinong Ying | Antenna device for communication equipment |
| TW200826371A (en) * | 2006-12-15 | 2008-06-16 | Z Com Inc | Dipole antenna in wireless device |
| TW201017978A (en) * | 2008-10-28 | 2010-05-01 | Wistron Neweb Corp | Wide-band planar antenna |
| TW201230494A (en) * | 2011-01-07 | 2012-07-16 | Primax Electronics Ltd | Dual-band planar antenna |
| TW201533972A (en) * | 2014-02-20 | 2015-09-01 | Wistron Neweb Corp | Broadband antenna |
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| US20070080871A1 (en) * | 2003-04-26 | 2007-04-12 | Zhinong Ying | Antenna device for communication equipment |
| TW200826371A (en) * | 2006-12-15 | 2008-06-16 | Z Com Inc | Dipole antenna in wireless device |
| TW201017978A (en) * | 2008-10-28 | 2010-05-01 | Wistron Neweb Corp | Wide-band planar antenna |
| TW201230494A (en) * | 2011-01-07 | 2012-07-16 | Primax Electronics Ltd | Dual-band planar antenna |
| TW201533972A (en) * | 2014-02-20 | 2015-09-01 | Wistron Neweb Corp | Broadband antenna |
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