WO2016180307A1 - 天线装置和移动终端 - Google Patents

天线装置和移动终端 Download PDF

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Publication number
WO2016180307A1
WO2016180307A1 PCT/CN2016/081470 CN2016081470W WO2016180307A1 WO 2016180307 A1 WO2016180307 A1 WO 2016180307A1 CN 2016081470 W CN2016081470 W CN 2016081470W WO 2016180307 A1 WO2016180307 A1 WO 2016180307A1
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Prior art keywords
main board
antenna
metal piece
mobile terminal
contact point
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PCT/CN2016/081470
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English (en)
French (fr)
Inventor
江晖
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中兴通讯股份有限公司
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016180307A1 publication Critical patent/WO2016180307A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles

Definitions

  • the utility model relates to the field of electromagnetic radiation of a mobile terminal, in particular to an antenna device and a mobile terminal.
  • SAR Specific Absorption Rate
  • SAR refers to the electromagnetic radiation energy absorbed per kilogram of organism (especially human body) in watts per kilogram (W/kg).
  • W/kg watts per kilogram
  • SAR refers to the ratio of radiation from the mobile terminal being absorbed by the soft tissue of the human head.
  • the smaller the SAR value of the mobile terminal the smaller the amount of radiation absorbed by the brain. So far, there are two internationally accepted standards for SAR: the European standard, 2W/kg, and the US standard, 1.6W/kg.
  • the solution for realizing the low frequency performance of the antenna in the prior art is to increase the length of the main board in the mobile terminal, thereby realizing the low frequency performance of the antenna, but this increases the overall size of the mobile terminal, resulting in a decrease in portability of the mobile terminal.
  • the present invention provides an antenna device and a mobile terminal, and it is desirable to reduce the SAR value of the mobile terminal without reducing the cost, without extending the debugging cycle, and without sacrificing the performance of the mobile terminal, while reducing the mobile terminal's size.
  • the present invention relates to an antenna device, the device comprising a main board, a main antenna, a sub-antenna and a first metal piece, the first metal piece being disposed on a side of the first side of the main board, and via the first contact a point electrically connected to a ground of the main board, the first contact point being located at the first side of the main board, the main antenna and the sub antenna being disposed on at least one side of the main board and Located at the second side and the third side of the main board, respectively, the second side and the third side are not adjacent.
  • the main board has a rectangular shape, and the first side is a long side of the main board.
  • the first metal piece has the following relationship with a plane where the main board is located: parallel, vertical, or coplanar.
  • the first metal piece is installed in one of the following manners: is mounted on the main board via a structural member, and is separately mounted on the main board.
  • the structural member is an outer casing of a mobile terminal including the device.
  • the apparatus further includes a second metal piece disposed on a side of the fourth side of the main board and electrically connected to the ground of the main board via a second contact point Wherein the fourth side and the first side are not adjacent, and the second contact point is located at the fourth side of the main board.
  • the first metal piece and the second metal piece have the same size and are symmetrical with respect to a geometric center of the main board, and the first contact point and the second contact point are opposite to each other
  • the geometric center of the motherboard is symmetrical.
  • the second contact point is aligned with one end of the first metal piece, and the second contact point is aligned with one end of the second metal piece.
  • the apparatus further includes a third metal piece disposed on a side of the first side of the main board and electrically connected to the main board via a third contact point At the ground, the third contact point is located at the first side of the main board.
  • the present invention also relates to a mobile terminal, wherein the mobile terminal includes any of the antenna devices described above.
  • the utility model adds a metal piece in the device of the mobile terminal, and electrically connects the metal piece to the grounding of the main board.
  • the equivalent lengthening of the length and area of the motherboard ground can shift and disperse the SAR hotspots, thereby reducing the SAR value.
  • the length of the main board is equivalently extended without increasing the length of the main board, the low frequency performance of the antenna is achieved, thereby reducing the size of the mobile terminal.
  • Figure 1 is a schematic view of a device according to an embodiment of the present invention, the device comprising a metal sheet;
  • FIG. 2 is a schematic view of a device in accordance with a preferred embodiment of the present invention, the device including a metal sheet;
  • Figure 3 is a schematic view of a device according to an embodiment of the present invention, the device comprising two metal sheets;
  • FIG. 4 is a schematic view of a device according to a preferred embodiment of the present invention, the device comprising two metal sheets;
  • Figure 5 is a schematic illustration of a device in accordance with another preferred embodiment of the present invention, which is another preferred embodiment using two metal sheets;
  • Figure 6 is a schematic illustration of an apparatus including three metal sheets in accordance with an embodiment of the present invention.
  • FIG. 1 is a schematic illustration of an apparatus including a metal sheet in accordance with an embodiment of the present invention. As shown in FIG. 1, the apparatus includes a main board 1, a main antenna 2, a sub-antenna 3, and a metal piece 11.
  • the main antenna 2 and the sub antenna 3 are disposed on at least one side of the main board 1 and are arranged along both sides of the main board 1. Preferably, the two sides where the primary antenna 2 and the secondary antenna 3 are respectively located are not adjacent to each other.
  • the main antenna 2 and the sub antenna 3 may be electrically connected to a circuit (not shown) of the main board 1 via a metal dome (not shown) or the like.
  • the main antenna 2 and the sub antenna 3 may be a monopole antenna, an IFA (Inverted-F Antenna), a PIFA (Planar Inverted-F Antenna), or an antenna having other polarization modes depending on the polarization mode. .
  • the main antenna 2 and the sub-antenna 3 may be a flexible printed circuit (FPC) antenna, an LDS (Laser Direct Structuring) antenna, or other forms of antenna.
  • the motherboard 1 can be a PCB (Printed Circuit Board) type motherboard.
  • the metal piece 11 is disposed at any position on the side of one side of the main board 1 and is electrically connected to the ground of the main board 1 via the contact point 11a.
  • the side where the metal piece 11 is located is different from the side where the main antenna 2 and the sub-antenna 3 are located.
  • the metal sheet 11 can be coplanar, perpendicular or parallel to the plane of the main board 1, even at any other angle.
  • the metal piece 11 can be mounted to the main board 1 via a structural member. At this time, the contact point 11a of the metal piece 11 is distinguished from the structural member.
  • the metal sheet 11 can also be separately mounted to On the motherboard 1. At this time, the contact point 11a can also function to support the metal piece 11.
  • the structural member can be the outer casing of the mobile terminal including the device, or other brackets.
  • the contact point 11a is only required to be located at the side of the main board 1 corresponding to the metal piece 11, and is not particularly limited to a specific position on the side. The difference in the position of the contact point 11a on the aforementioned side of the main board 1 causes a change in the SAR value of the mobile terminal including the device.
  • the metal piece 11 can be made of a conventional metal material such as copper.
  • the main board 1 has a rectangular shape. At this time, the metal piece 11 is located on the side of the long side of the main board 1.
  • FIG. 2 is a schematic illustration of a device including a metal sheet 11 in accordance with a preferred embodiment of the present invention.
  • the device of the preferred embodiment of the invention shown in Figure 2 differs from the device of Figure 1 only in that the metal sheet 11 is electrically connected to the ground of the main board 1 via four contact points 11a, 11b, 11c, 11d. .
  • the metal piece 11 is connected to the contact point 11a, and the contact points 11b, 11c, 11d can be electrically connected to the contact point 11a through a wire or a printed wiring on the main board 1.
  • the contact points 11a, 11b, 11c, 11d are respectively connected to the ground of the main board 1.
  • the two contact points 11a, 11b, 11c, 11d are located on the side of the main board 1 corresponding to the metal piece 11, and the other two contact points 11c, 11d are located on the main board which are different from the aforementioned side On the other side. Further, the side where the contact points 11a, 11b, 11c, and 11d are located is different from the side where the main antenna 2 and the sub-antenna 3 are located.
  • the position of the contact points 11a, 11b on their respective sides and the positions of the contact points 11a, 11b, 11c, 11d on their corresponding two sides may be symmetrical about the geometric center of the main board 1.
  • the metal piece 11 is located on the side of the long side of the main board 1, and the contact points 11a, 11b and the contact points 11c, 11d are respectively located at the two long sides of the main board 1.
  • FIG. 3 is a schematic illustration of an apparatus including two metal sheets in accordance with an embodiment of the present invention. As shown in FIG. 3, the apparatus includes a main board 1, a main antenna 2, a sub-antenna 3, and metal sheets 11 and 12.
  • the metal sheets 11, 12 are respectively located on the sides of the two sides of the main board 1, and are electrically connected to the ground of the main board 1 via the contact points 11a, 12a, respectively.
  • the contact point 11a may be located at any position on the side of the side of the metal piece 11 of the main board 1.
  • the contact point 12a may be located on the metal piece 12 of the main board 1. Anywhere on one side of the side.
  • the side corresponding to the metal piece 11 and the side corresponding to the metal piece 12 are not adjacent. More preferably, when the main board 1 has a rectangular shape, the metal sheets 11, 12 are respectively located on the sides of the two long sides of the main board 1.
  • FIGS. 4 and 5 are schematic views of a device in accordance with two preferred embodiments of the present invention, respectively.
  • the device comprises two metal sheets 11, 12, wherein the metal sheets 11, 12 are respectively aligned at their ends with respective contact points.
  • the metal sheets 11, 12 may have the same size.
  • the two metal sheets 11, 12 of the device are respectively located on the sides of the two sides of the main board 1.
  • the metal sheets 11, 12 may further be symmetrical about the geometric center of the main board 1.
  • the contact points 11b, 12b between the metal sheets 11, 12 and the main board 1 are respectively located on the two sides of the main board 1 corresponding to the metal sheets 11, 12 and are symmetrical about the geometric center of the main board 1.
  • the metal sheets 11, 12 are parallel to the plane in which the main board 1 is located. And both ends of the metal piece 11 are aligned with the opposite ends of the corresponding side of the main board 1, and both ends of the metal piece 12 are aligned with the opposite ends of the corresponding side of the main board 1.
  • the arrangement in FIG. 5 differs from the arrangement in FIG. 4 only in that the arrangement of the metal sheets 11, 12 and the respective contact points 11c, 12c is opposite to the arrangement of the arrangement in FIG. 4 in the direction of the main board 1.
  • Figure 6 is a schematic illustration of an apparatus including three metal sheets in accordance with an embodiment of the present invention.
  • the metal sheets 101, 103 are located on the side of one side of the main board 1, and the metal piece 102 is located on the side of the other side.
  • the metal pieces 101, 102, 103 are electrically connected to the ground of the main board 1 via the contact points 101a, 102a, 103a, respectively.
  • the contact points 101a, 102a, 103a are respectively located at arbitrary positions on the two sides of the metal sheets 101, 102, 103 of the main board 1.

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  • Telephone Set Structure (AREA)
  • Support Of Aerials (AREA)

Abstract

本实用新型涉及一种天线装置，该装置包括主板、主天线、副天线和第一金属片，第一金属片被设置在主板的第一边的侧面，并且经由第一接触点被电连接到主板的接地处，第一接触点位于主板的第一边处，主天线和副天线被设置在主板的至少一面上并且分别位于主板的第二边和第三边处，第二边和第三边不邻接。本实用新型还涉及一种包括上述天线装置的移动终端。

Description

天线装置和移动终端 技术领域
本实用新型主要涉及移动终端的电磁辐射领域，尤其涉及一种天线装置和移动终端。
背景技术
SAR(Specific Absorption Rate，比吸收率)指的是以任意6分钟计时平均，每公斤生物体(尤其是人体)组织吸收的电磁辐射能量，以瓦特每千克(W/kg)为单位。特别是，对于诸如手机之类的移动终端而言，SAR指的是来自移动终端的辐射被人体头部的软组织吸收的比率。一般情况下，移动终端的SAR值越小，则表示被脑部吸收的辐射量越小。到目前为止，国际通用的关于SAR的标准有两个：欧洲标准，即2W/kg，以及美国标准，即1.6W/kg。
因为SAR值的大小在相当程度上决定了移动终端的电磁辐射对人体的影响，所以采用不同的方法来减小移动终端的SAR值。
在现有技术中，可以采用以下方法来减小移动终端的SAR值：
(1)在移动终端中添加电磁波吸收材料，但是添加的电磁波吸收材料通常价格很高，这会导致移动终端的成本增大，从而进一步降低移动终端的市场竞争力；
(2)降低移动终端的发射功率，但是会导致TRP(Total Radiated Power，辐射功率和)的减小，从而使得移动终端的性能下降，影响用户的实际使用体验；
(3)对天线的形式进行调整，但是会延长移动终端的调试周期，从而影响移动终端的研发项目的进度，最终影响到移动终端的上市时间。
与此同时，现有技术中实现天线的低频性能的方案为：增加移动终端中主板的长度，从而实现天线的低频性能，但是这会增加移动终端的整体尺寸，导致移动终端的便携性下降。
发明内容
有鉴于此，本实用新型提出一种天线装置和移动终端，期望能够在不增加成本、不延长调试周期且不牺牲移动终端的性能的前提下，降低移动终端的SAR值，同时缩减移动终端的尺寸。
本实用新型涉及一种天线装置，所述装置包括主板、主天线、副天线和第一金属片，所述第一金属片被设置在所述主板的第一边的侧面，并且经由第一接触点被电连接到所述主板的接地处，所述第一接触点位于所述主板的所述第一边处，所述主天线和所述副天线被设置在所述主板的至少一面上并且分别位于所述主板的第二边和第三边处，所述第二边和所述第三边不邻接。
可选地，所述主板呈矩形，所述第一边为所述主板的一个长边。
可选地，所述第一金属片与所述主板所在的平面之间具有以下关系：平行、垂直或共面。
可选地，所述第一金属片的安装方式为以下之一：经由结构件安装到所述主板上，单独安装到所述主板上。
可选地，所述结构件是包括所述装置的移动终端的外壳。
可选地，所述装置还包括第二金属片，所述第二金属片被设置在所述主板的第四边的侧面，并且经由第二接触点被电连接到所述主板的所述接地处，所述第四边和所述第一边不邻接，所述第二接触点位于所述主板的所述第四边处。
可选地，所述第一金属片和所述第二金属片具有相同的尺寸并且相对于所述主板的几何中心对称，所述第一接触点和所述第二接触点相对于所 述主板的几何中心对称。
可选地，所述第二接触点与所述第一金属片的一端对齐，所述第二接触点与所述第二金属片的一端对齐。
可选地，所述装置还包括第三金属片，所述第三金属片被设置在所述主板的所述第一边的侧面，并且经由第三接触点被电连接到所述主板的所述接地处，所述第三接触点位于所述主板的所述第一边处。
本实用新型还涉及一种移动终端，其中，所述移动终端包括如上所述的任意天线装置。
本实用新型在移动终端的装置中增加金属片，并且使金属片电连接到主板的接地处。以此方式，等效延长了主板接地的长度和面积，可以转移和分散SAR热点，以致降低SAR值。除此以外，由于在不增加主板长度的情况下等效延长了主板的长度，实现了天线的低频性能，因此减小了移动终端的尺寸。
附图说明
图1为根据本实用新型的一个实施例的装置的示意图，该装置包括一个金属片；
图2为根据本实用新型的一个优选实施例的装置的示意图，该装置包括一个金属片；
图3为根据本实用新型的一个实施例的装置的示意图，该装置包括两个金属片；
图4为根据本实用新型的一个优选实施例的装置的示意图，该装置包括两个金属片；
图5为根据本实用新型的另一优选实施例的装置的示意图，该实施例为使用两个金属片的另一优选技术方案；以及，
图6为根据本实用新型的一个实施例的装置的示意图，该装置包括三个金属片。
在附图中，相似的附图标记表示相同的结构，并且对相同的结构不再进行赘述。
具体实施方式
以下结合附图对本发明的优选实施例进行详细说明，应当理解，以下所说明的优选实施例仅用于说明和解释本发明，并不用于限定本发明。
图1为根据本实用新型的一个实施例的装置的示意图，该装置包括一个金属片。如图1中所示，该装置包括主板1、主天线2、副天线3、金属片11。
主天线2和副天线3被设置在主板1的至少一面上且沿主板1的两个边排布。较优地，主天线2和副天线3分别所在的两个边彼此不邻接。主天线2和副天线3可以经由金属弹片(未示出)或其他方式电连接到主板1的电路(未示出)上。主天线2和副天线3根据极化方式可以是单极天线、IFA(Inverted-F Antenna，倒F天线)、PIFA(Planar Inverted-F Antenna，平面倒F天线)或者具有其他极化方式的天线。主天线2和副天线3可以是支架FPC(Flexible Printed Circuit，柔性印刷电路板)天线、LDS(Laser Direct Structuring，激光直接成型)天线或者采用其他形式的天线。主板1可以是PCB(Printed Circuit Board，印刷电路板)类型的主板。
金属片11被设置在主板1的一个边的侧面的任意位置处，并且经由接触点11a被电连接到主板1的接地处。金属片11所在的边与主天线2和副天线3所在的边均不相同。金属片11可以与主板1所在平面共面、垂直或者平行，甚至呈其他任意角度。金属片11可以经由结构件安装到主板1上。此时，金属片11的接触点11a区别于结构件。金属片11也可以单独安装到 主板1上。此时，接触点11a还可以起到支撑金属片11的作用。结构件可以是包括该装置的移动终端的外壳，或者其他支架。接触点11a只要位于主板1的与金属片11相对应的边处即可，并不具体限定在该边上的特定位置。接触点11a在主板1的前述边上的位置的不同导致包括该装置的移动终端的SAR值变化。金属片11可以采用诸如铜之类的常规金属材料制作。优选地，主板1呈矩形形状。此时，金属片11位于主板1的长边的侧面。
图2为根据本实用新型的一个优选实施例的装置的示意图，该装置包括一个金属片11。图2中所示的本实用新型的优选实施例的装置与图1中的装置的区别仅在于，金属片11经由四个接触点11a、11b、11c、11d被电连接到主板1的接地处。详细来说，金属片11连接到接触点11a处，接触点11b、11c、11d可以通过导线或者主板1上的印刷线路电连接到接触点11a处。接触点11a、11b、11c、11d分别连接到主板1的接地处。在接触点11a、11b、11c、11d中，两个接触点11a、11b位于主板1的对应于金属片11的边上，并且另外两个接触点11c、11d位于主板的与前述边相异的另一边上。并且，接触点11a、11b、11c、11d所在的边与主天线2和副天线3所在的边均不相同。较优地，接触点11a、11b在其对应边上的位置与接触点11a、11b、11c、11d在其对应的两个边上的位置可以关于主板1的几何中心对称。较优地，当主板1呈矩形时，金属片11位于主板1的长边的侧面，且接触点11a、11b和接触点11c、11d分别位于主板1的两个长边处。
图3为根据本实用新型的一个实施例的装置的示意图，该装置包括两个金属片。如图3中所示，该装置包括主板1、主天线2、副天线3、金属片11和12。
金属片11、12分别位于主板1的两个边的侧面，并且分别经由接触点11a、12a被电连接到主板1的接地处。接触点11a可以位于主板1的金属片11所在一侧的边的任意位置处。接触点12a可以位于主板1的金属片12 所在一侧的边的任意位置处。较优地，金属片11所对应的边和金属片12所对应的边不邻接。更较优地，当主板1呈矩形时，金属片11、12分别位于主板1的两个长边的侧面。
图4和5分别为根据本实用新型的两个优选实施例的装置的示意图。该装置包括两个金属片11、12，其中，金属片11、12分别在一端与各自的接触点对齐。金属片11、12可以具有相同的尺寸。
在图4中，该装置的两个金属片11、12分别位于主板1的两个边的侧面。金属片11、12进一步可以关于主板1的几何中心对称。同样，金属片11、12与主板1之间的接触点11b、12b分别位于主板1的对应于金属片11、12的两个边上并且关于主板1的几何中心对称。在优选实施例中，金属片11、12与主板1所在的平面平行。并且金属片11的两端与所对应的主板1的边的两端对齐，金属片12的两端与所对应的主板1的边的两端对齐。
在图5中的装置与图4中的布置的区别仅在于，金属片11、12以及相应的接触点11c、12c的布置沿主板1的方向与图4中的布置的方向相反。
图6为根据本实用新型的一个实施例的装置的示意图，该装置包括三个金属片。在图6中，装置的三个金属片101、102、103中，金属片101、103位于主板1的一个边的侧面，而金属片102位于另一边的侧面。金属片101、102、103分别经由接触点101a、102a、103a被电连接到主板1的接地处。接触点101a、102a、103a分别位于主板1的金属片101、102、103所对应的两个边上的任意位置处。
以上所述仅为本实用新型的优选实施例而已，并不用于限制本实用新型，凡按照本发明原理所作的修改，都应当理解为落入本发明的保护范围。

Claims (10)

  1. 一种天线装置，所述装置包括主板、主天线、副天线和第一金属片，所述第一金属片被设置在所述主板的第一边的侧面，并且经由第一接触点被电连接到所述主板的接地处，所述第一接触点位于所述主板的所述第一边处，所述主天线和所述副天线被设置在所述主板的至少一面上并且分别位于所述主板的第二边和第三边处，所述第二边和所述第三边不邻接。
  2. 根据权利要求1所述的天线装置，其中，所述主板呈矩形，所述第一边为所述主板的一个长边。
  3. 根据权利要求1或2所述的天线装置，其中，所述第一金属片与所述主板所在的平面之间具有以下关系：平行、垂直或共面。
  4. 根据权利要求1或2所述的天线装置，其中，所述第一金属片的安装方式为以下之一：经由结构件安装到所述主板上，单独安装到所述主板上。
  5. 根据权利要求4所述的天线装置，其中，所述结构件是包括所述装置的移动终端的外壳。
  6. 根据权利要求1或2所述的天线装置，其中，所述装置还包括第二金属片，所述第二金属片被设置在所述主板的第四边的侧面，并且经由第二接触点被电连接到所述主板的所述接地处，所述第四边和所述第一边不邻接，所述第二接触点位于所述主板的所述第四边处。
  7. 根据权利要求6所述的天线装置，其中，所述第一金属片和所述第二金属片具有相同的尺寸并且相对于所述主板的几何中心对称，所述第一接触点和所述第二接触点相对于所述主板的几何中心对称。
  8. 根据权利要求6所述的天线装置，其中，所述第二接触点与所述第一金属片的一端对齐，所述第二接触点与所述第二金属片的一端对齐。
  9. 根据权利要求6所述的天线装置，其中，所述装置还包括第三金属片，所述第三金属片被设置在所述主板的所述第一边的侧面，并且经由第三接触点被电连接到所述主板的所述接地处，所述第三接触点位于所述主板的所述第一边处。
  10. 一种移动终端，所述移动终端包括根据权利要求1至9中任一项所述的天线装置。
PCT/CN2016/081470 2015-09-23 2016-05-09 天线装置和移动终端 WO2016180307A1 (zh)

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CN205122751U (zh) * 2015-09-23 2016-03-30 西安中兴新软件有限责任公司 一种天线装置和移动终端
CN109616745B (zh) * 2018-12-05 2021-10-26 歌尔股份有限公司 天线结构和电子设备
CN112269069A (zh) * 2020-11-04 2021-01-26 上海龙旗科技股份有限公司 一种智能电子设备

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