WO2017185376A1 - 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
WO2017185376A1
WO2017185376A1 PCT/CN2016/080817 CN2016080817W WO2017185376A1 WO 2017185376 A1 WO2017185376 A1 WO 2017185376A1 CN 2016080817 W CN2016080817 W CN 2016080817W WO 2017185376 A1 WO2017185376 A1 WO 2017185376A1
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WO
WIPO (PCT)
Prior art keywords
pair
antenna device
main board
long sides
metal casing
Prior art date
Application number
PCT/CN2016/080817
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English (en)
French (fr)
Inventor
王新宝
赵宁
梁天平
Original Assignee
广东欧珀移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to PCT/CN2016/080817 priority Critical patent/WO2017185376A1/zh
Priority to TW106112281A priority patent/TWI656752B/zh
Publication of WO2017185376A1 publication Critical patent/WO2017185376A1/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
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome

Definitions

  • the present invention relates to the field of antenna technologies, and in particular, to an antenna device and a mobile terminal.
  • the metal is a signal shielding material.
  • the casing In order to avoid the effect of the signal shielding of the metal casing on the efficiency of the antenna, the casing usually adopts a combination of metal and non-metal, and in order to facilitate the radiation of the antenna signal, the proportion of the non-metal is relatively large, which affects the mobile terminal. structure.
  • the technical problem to be solved by the present invention is to provide an antenna device and a mobile terminal, which can improve the overall appearance of the mobile terminal.
  • the invention provides an antenna device, comprising a metal casing, a main board, a radio frequency transceiver circuit and a matching capacitor, wherein the metal casing has a micro slit belt, and the micro slit belt has a first open end and a first closed end which are oppositely disposed.
  • the first open end is located on an edge of the metal casing, and the first closed end is located at a position of the micro slit tape away from the first open end such that the micro slit tape will be the metal casing Partially separated,
  • the microslit strip is provided with a plurality of micro slits arranged side by side;
  • the main board is provided with a slit, the slit partitions the main board part into an upper part and a lower part, and the radio frequency transceiver circuit is disposed on the main board In a lower portion, the matching capacitor is electrically connected between the radio frequency transceiver circuit and an upper portion of the main board, and a radiation signal of the radio frequency transceiver circuit is radiated through the micro slit tape.
  • the gap is opposite to the micro slit tape.
  • the slit has oppositely disposed second open ends and second closed ends, the second open end is located on an edge of the main board, and the second closed end is located at the gap away from the second open The position of the end.
  • the antenna device further includes an impedance matching circuit electrically connected between the radio frequency transceiver circuit and the matching capacitor.
  • the antenna device further includes a switch and a grounding point disposed at the lower portion, the switch is electrically Connected between the upper and lower ground points.
  • the main board is grounded to the metal casing, and a position of the metal casing ground connection is disposed around the micro slit tape.
  • the number of grounding points of the ground connection of the metal casing is 3-8.
  • the metal casing comprises a pair of long sides and a pair of short sides which are oppositely disposed, a pair of the short sides are connected between a pair of the long sides, and the first open end is located on one of the long sides The first closed end extends along an extending direction of the short side.
  • the slit width of the micro slit is 0.01 mm to 0.5 mm.
  • the number of the micro slits is 2 to 5.
  • the non-signal shielding material is disposed in the micro slit.
  • the present invention also provides a mobile terminal comprising an antenna device.
  • the mobile terminal further includes a front shell assembly, the metal shell is disposed on the front shell assembly to form an accommodating space, the main board is located in the accommodating space, and the main board and the front shell component are grounded connection.
  • the front shell assembly defines a front shell gap, and the front shell gap faces a gap of the main board.
  • the present invention has the following beneficial effects:
  • the antenna device and the mobile terminal in the embodiment of the present invention not only facilitate the signal radiation of the radio frequency transceiver circuit on the main board but also reduce the metal casing by providing the micro slit tape having the first open end and the first closed end on the metal casing.
  • the proportion of non-metals improves the overall appearance of the mobile terminal.
  • FIG. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of the metal casing of FIG. 1;
  • FIG. 3 is a schematic structural view of a main board provided with various circuits in FIG. 1.
  • FIG. 3 is a schematic structural view of a main board provided with various circuits in FIG. 1.
  • the invention relates to a mobile terminal, which comprises an antenna device.
  • the mobile terminal can be any device with communication and storage functions, such as a tablet computer, a mobile phone, an e-reader, a remote controller, a personal computer (PC). Smart devices with network capabilities such as laptops, in-vehicle devices, Internet TVs, and wearable devices.
  • the mobile terminal includes an antenna device.
  • the antenna device comprises a metal casing and a main board provided with a radio frequency transceiver circuit and a matching capacitor, wherein the metal casing is generally used as a back cover of the mobile terminal, and the inside thereof houses the battery and the main board.
  • the mobile terminal 100 includes an antenna device 1 .
  • the antenna device 1 includes a metal casing 11 , a main board 12 , a radio frequency transceiver circuit 13 , and a matching capacitor . 14.
  • the metal casing 11 defines a micro-slit strip 111 to form a clearance area, and the RF transceiver circuit 13 is electrically connected to the main board 12 through the matching capacitor 14.
  • the radiation signal emitted by the RF transceiver circuit 13 is radiated through the micro-slit strip 111, which is beneficial to the antenna device 1. Signal radiation.
  • the metal casing 11 includes a pair of long sides and a pair of short sides which are oppositely disposed, and a pair of short sides are connected between a pair of long sides.
  • the pair of long sides includes a first long side L1 and a second long side L2, and the pair of short sides include the first short side S1 and the second short side S2.
  • the number of the micro slit tapes 111 is one.
  • the microslit strip 111 has a first open end S3 and a first closed end S4.
  • the first open end S3 is located on the edge of the metal casing 11, and the first closed end S4 is located away from the first open end S3 of the micro slit strip 111.
  • the position is such that the microslit strip 111 partially separates the metal casing 11.
  • the microslit tape 111 is provided with a plurality of micro slits 111a arranged side by side.
  • the first open end S3 is located on the first long side L1
  • the first closed end S4 extends along the extending direction of the first short side S1, and is close to the first short side S1
  • the plurality of micro slits 111a are along First long
  • the extending direction of the side L1 is arranged side by side, and by providing the microslit tape 111 in the above-described configuration, the metal ratio of the metal casing 11 is further increased, thereby improving the overall appearance of the metal casing 11 and the mobile terminal 100.
  • the micro slit 111a is a long rectangular hole.
  • the non-signal shielding material 111b can be disposed in the micro slit 111a.
  • the non-signal shielding material 111b is plastic, which further improves the appearance integrity of the metal casing 11 while making the metal casing 11 have better waterproof performance.
  • the number of the microslit strips 111 may also be two, three or more, which are disposed on the metal casing 11 according to actual needs.
  • the first open end S3 may also be located on the first short side S1, and the first closed end S4 extends along the direction of the first long side L1.
  • the micro slits 111a may also be wavy, lightning, oblong, or the like.
  • the slit width of the micro slit 111a is 0.01 mm to 0.5 mm.
  • the slit width of the micro slit 111a is 0.06 mm, so that the micro slit 111a is invisible to the naked eye, and the appearance integrity of the metal casing 11 is further improved.
  • the number of the micro slits 111a is 2 to 5. In the embodiment, the number of the micro slits 111a is three, which is beneficial to the radiation of the main board 12.
  • the main board 12 is provided with a slit 12a.
  • the slit 12a divides the main board portion into an upper portion 12b and a lower portion 12c.
  • the radio frequency transceiver circuit 13 is disposed on the lower portion 12c of the main board 12, and the matching capacitor is electrically connected to the radio frequency transceiver.
  • a gap antenna is formed between the circuit and the upper portion 12b of the main board by the excitation slit 12a, and the radiation signal is radiated through the micro slit tape 111 through the radio frequency transceiver circuit 13.
  • the main board 12 is spaced apart from the metal casing 11 and the main board 12 faces the metal casing 11.
  • the slit 12a faces the microslit strip 111 so that the signal of the radio frequency transceiver circuit 13 can be radiated better through the micro slit strip 111, thereby improving the radiation efficiency of the antenna device 1.
  • the slit 12a has oppositely disposed second open ends S7 and second closed ends S8, the second open end S7 is located on the edge of the main board 12, and the second closed end S8 is located away from the second open end S7 of the slit 12a.
  • the main board 12 is partitioned into an upper portion 12b and a lower portion 12c by a slit 12a.
  • the main board 12 includes a left side S4 and a right side S5 which are oppositely disposed.
  • the second open end S7 is located on the left side S4, and the second closed end S8 is along It extends away from the direction of the left side S4, and the structure of the slit 12a is the same as that of the microslit belt 111. Referring to FIG.
  • the orthographic projection of the slit 12a on the metal casing 11 is The microslit strips 111 are overlapped, that is, the slit 12a faces the micro slit tape 111, so that the slit 12a and the matching capacitor 14 form a slot antenna, and the signal of the slot antenna can be transmitted and received by radio frequency
  • the circuit 13 is preferably radiated from the microslit strip 111 to further improve the antenna performance of the antenna device 1 and the mobile terminal 100.
  • the size of the slits may be different from the size of the microslit strips.
  • the orthographic projection of the slit 12a on the metal casing 11 may partially coincide with the microslit strip 111.
  • the antenna device 1 further includes an impedance matching circuit 15 that is connected between the RF transceiver circuit 13 and the matching capacitor 14.
  • an impedance matching circuit 15 that is connected between the RF transceiver circuit 13 and the matching capacitor 14.
  • the impedance matching circuit 15 can be further adapted to the internal impedance of the matching capacitor 14, so that the signal received or output by the RF transceiver circuit 13 is the maximum power. .
  • the antenna device 1 further includes a switch 16 and a ground point 17 disposed at a lower portion, the switch 16 being electrically connected between the upper portion 12b and the ground point 17 of the lower portion 12c.
  • the switch 16 is disposed at the corresponding position of the slot 12a and the grounding point 17 is disposed on the main board 12 to modulate the frequency band on the main board 12.
  • the switch 124 is turned off, the signal excited by the matching capacitor 14 is along The direction from the second open end S7 to the second closed end S8 of the slit 12a is transmitted at the periphery of the slit 12a.
  • the operating frequency band of the main board 12 is a high frequency band; when the switch 16 is closed, the signal is directly grounded through the switch 16, in the first The length of the second closed end S8 is short-circuited. At this time, the operating frequency band of the main board 12 is a low frequency band.
  • the frequency band of the main board 12 is modulated by setting the switch 16 and the grounding point 17 on the main board 12 to meet various internal contents of the mobile terminal 100. The requirements of the components for different frequency bands improve the antenna performance of the antenna device 1 and the mobile terminal 100.
  • the antenna device 1 and the mobile terminal 100 in the embodiment of the present invention are provided with the micro slit tape 111 having the first open end S3 and the first closed end S4 on the metal casing 11, which is beneficial to the signal radiation of the main board 12 and is reduced.
  • the non-metal ratio of the metal casing 11 improves the overall appearance of the mobile terminal 100.
  • the main board 12 is grounded to the metal casing 11, and the position 112 of the metal casing 11 connected to the ground is disposed around the microslit belt 111.
  • the main board 12 is grounded to the metal casing 11, and the metal casing 11 is formed into a radiating portion of the antenna device 1 by forming the main plate 12, and it can be understood that the position 112 of the metal casing 11 connected to the ground is surrounded by the micro slit.
  • the belt 111 is evenly disposed such that the portion of the metal casing 11 that surrounds the microslit belt 111 radiates a more uniform signal, further improving the antenna performance of the antenna device 1. It can be understood that the number of positions of the metal casing 11 connected to the ground is 3-8, which can be further ensured.
  • the metal casing 11 becomes an antenna performance after the radiator.
  • the metal casing 11 is grounded at a position 112 of three, which is uniformly disposed around the microslit belt 111, so that the metal casing 11 can form a radiator with better radiation performance.
  • the mobile terminal 100 further includes a front casing assembly 2 , the metal casing 11 is disposed on the front casing assembly 2 to form an accommodation space D, the main board 12 is located in the accommodation space D, and the main board 12 and the front casing assembly 2 are Ground connection.
  • the front casing assembly 2 includes a front casing and a screen assembly, the screen assembly is disposed on the front casing, the portion of the screen assembly that is blocked by the front casing is a non-display area, and the portion of the screen assembly that is not blocked by the front casing is a display area. It is generally capable of display and touch operations.
  • the non-display surface of the front case assembly 2 is grounded to the main board 12 such that the front case assembly provides a zero potential for the main board 12, that is, the front case assembly 2 is a total ground for providing zero potential to the grounding point of the main board 12, and the main board 12 is opposite to the metal case 11 is the ground of the metal casing 11, so that the metal casing 11 becomes another radiator of the antenna device 1, and the front casing assembly 2 also forms another radiator of the antenna device 1 as a whole, further improving the antenna device 1. Radiation performance.
  • the front casing assembly 2 opens the front casing slit 2a, and the front casing slit 2a faces the slit 12a to ensure that the signal excited by the slit 12a can be radiated better through the front casing slit 2a.
  • the position of the ground connection of the front case assembly 2 is uniformly disposed around the front case slot 2a, and the position of the ground connection of the front case assembly 2 corresponds to the position 112 of the metal case 11 being grounded.
  • the orthographic projection of the front case slit 2a on the main board 12 coincides or partially overlaps with the slit of the main board 12, so that the front case assembly 2 forms another radiating portion of the antenna device 1, so that the signal of the antenna device 1 can be radiated from the front case assembly 2. Thereby, the radiation performance of the antenna device 1 is further improved.

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Abstract

本发明公开了一种天线装置，包括金属外壳、主板、射频收发电路和匹配电容，金属外壳开设微缝带，微缝带具有相对设置的第一开放端和第一闭合端，第一开放端位于金属外壳的边缘上，第一闭合端位于微缝带之远离第一开放端的位置处，微缝带设有多条并排间隔设置的微缝；主板设置缝隙，缝隙将主板部分分隔成上部和下部，射频收发电路设置于主板的下部，匹配电容电连接于射频收发电路和主板的上部之间，射频收发电路的辐射信号经微缝带辐射出去。本发明还提供一种移动终端。本发明实施例中的天线装置和移动终端通过在金属外壳上设置具有第一开放端和第一闭合端的微缝带，既利于主板上的射频收发电路的信号辐射，又降低了金属外壳的非金属占比。

Description

天线装置和移动终端 技术领域
本发明涉及天线技术领域，尤其涉及一种天线装置和移动终端。
背景技术
随着科技的发展及使用者对电子产品的信号要求越来越高，目前市面上的手机等具有天线的移动终端很多选用金属壳体，以保证使用强度的同时，满足质感，提升用户的体验感。众所周知，金属为信号屏蔽材料，为避免金属外壳信号屏蔽影响天线效率作用，通常壳体会采用金属与非金属结合，而为了利于天线信号的辐射，非金属的比重比较大，其影响了移动终端的结构。
发明内容
本发明所要解决的技术问题在于提供一种天线装置和移动终端，能够提高移动终端的外观整体性。
本发明提供了一种天线装置，包括金属外壳、主板、射频收发电路和匹配电容，所述金属外壳开设微缝带，所述微缝带具有相对设置的第一开放端和第一闭合端，所述第一开放端位于所述金属外壳的边缘上，所述第一闭合端位于所述微缝带之远离所述第一开放端的位置处，以使所述微缝带将所述金属外壳部分分隔，所述微缝带设有多条并排间隔设置的微缝；所述主板设置缝隙，所述缝隙将所述主板部分分隔成上部和下部，所述射频收发电路设置于所述主板的下部，所述匹配电容电连接于所述射频收发电路和所述主板的上部之间，所述射频收发电路的辐射信号经所述微缝带辐射出去。
其中，所述缝隙正对所述微缝带。
其中，所述缝隙具有相对设置的第二开放端和第二闭合端，所述第二开放端位于所述主板的边缘上，所述第二闭合端位于所述缝隙之远离所述第二开放端的的位置处。
其中，所述天线装置还包括阻抗匹配电路，所述阻抗匹配电路电连接于所述射频收发电路和所述匹配电容之间。
其中，所述天线装置还包括开关和设置于所述下部的接地点，所述开关电 连接于所述上部和所述下部的接地点之间。
其中，所述主板与所述金属外壳接地连接，且所述金属外壳接地连接的位置围绕所述微缝带设置。
其中，所述金属外壳接地连接的位置接地点的数量为3～8个。
其中，所述金属外壳包括相对设置的一对长边和一对短边，一对所述短边连接在一对所述长边之间，所述第一开放端位于一条所述长边上，所述第一闭合端沿着所述短边的延伸方向延伸。
其中，所述微缝的缝宽为0.01mm～0.5mm。
其中，所述微缝的数量为2～5条。
其中，所述微缝中设置非信号屏蔽材料。
另一方面，本发明还提供了一种移动终端，包括天线装置。
其中，所述移动终端还包括前壳组件，所述金属外壳设置于所述前壳组件上形成容置空间，所述主板位于所述容置空间，且所述主板与所述前壳组件接地连接。
其中，所述前壳组件开设前壳缝隙，所述前壳缝隙正对所述主板的缝隙。
相较于现有技术，本发明具有以下有益效果：
在本发明实施例中的天线装置和移动终端通过在金属外壳上设置具有第一开放端和第一闭合端的微缝带，既利于主板上的射频收发电路的信号辐射，又降低了金属外壳的非金属占比，提高了移动终端的外观整体性。
附图说明
为了更清楚地说明本发明的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以如这些附图获得其他的附图。
图1为本发明实施例的移动终端的结构示意图；
图2为图1中的金属外壳的结构示意图；
图3为图1中的设置有各种电路的主板的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例的描述中，需要理解的是，术语“左侧”“右侧”“上侧”“下侧”“长”“短”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是暗示或指示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
本发明涉及一种移动终端，该移动终端包括天线装置，移动终端可以是任何具备通信和存储功能的设备，例如：平板电脑、手机、电子阅读器、遥控器、个人计算机(Personal Computer，PC)、笔记本电脑、车载设备、网络电视、可穿戴设备等具有网络功能的智能设备。移动终端包括天线装置。天线装置包括金属外壳和设置有射频收发电路和匹配电容的主板，其中，金属外壳通常作为移动终端的后盖，其内部容纳电池及主板。
请一并参阅图1至图3，为本发明提供实施例提供的一种移动终端100，移动终端100包括天线装置1，天线装置1包括金属外壳11、主板12、射频收发电路13和匹配电容14，金属外壳11开设微缝带111形成净空区域，射频收发电路13通过匹配电容14电连接于主板12上，射频收发电路13发出的辐射信号经微缝带111辐射出去，利于天线装置1的信号辐射。
在本实施例中，请参照图2，金属外壳11包括相对设置的一对长边和一对短边，一对短边连接在一对长边之间。其中，一对长边包括第一长边L1和第二长边L2，一对短边包括位于第一短边S1和第二短边S2。
在本实施例中，微缝带111的数量为一个。微缝带111具有相对设置的第一开放端S3和第一闭合端S4，第一开放端S3位于金属外壳11的边缘上，第一闭合端S4位于微缝带111之远离第一开放端S3的位置处，以使微缝带111将金属外壳11部分分隔。其中，微缝带111设有多条并排间隔设置的微缝111a。可以理解的，第一开放端S3位于第一长边L1上，第一闭合端S4沿着第一短边S1的延伸方向延伸，且靠近第一短边S1，而多条微缝111a则沿着第一长 边L1的延伸方向并排设置，通过将微缝带111设置为上述结构，进一步提高金属外壳11的金属占比，从而提高金属外壳11和移动终端100的外观整体性。可以理解的，微缝111a为长矩形孔。可以理解的，微缝111a中可以设置非信号屏蔽材料111b，具体的，非信号屏蔽材料111b为塑胶，在进一步提高金属外壳11的外观整体性的同时又使得金属外壳11具有较佳的防水性能。当然，在其它实施例中，微缝带111的数量还可以为两个、三个或者更多个，根据实际所需设置在金属外壳11上。当然，在其它实施例中，第一开放端S3还可以位于第一短边S1上，第一闭合端S4沿着第一长边L1的方向延伸。当然，在其它实施例中，微缝111a还可以为波浪形、闪电状、长椭圆形等。
优选的，微缝111a的缝宽为0.01mm～0.5mm，本实施例中，微缝111a的缝宽为0.06mm，使得微缝111a肉眼不可视，进一步提高金属外壳11的外观整体性。
优选的，微缝111a的数量为2～5条，本实施例中，微缝111a的数量为3条，利于主板12的辐射。
在本实施例中，请参照图3，主板12上设置缝隙12a，缝隙12a将主板部分分隔成上部12b和下部12c，射频收发电路13设置于主板12的下部12c，匹配电容电连接于射频收发电路和主板的上部12b之间，以激励缝隙12a形成缝隙天线，再通过射频收发电路13将辐射信号通过微缝带111辐射出去。具体的，主板12与金属外壳11间隔设置，且主板12正对金属外壳11。
可以理解的，缝隙12a正对微缝带111，使得射频收发电路13的信号能够更佳的通过微缝带111辐射出去，提高天线装置1的辐射效率。
优选的，缝隙12a具有相对设置的第二开放端S7和第二闭合端S8，第二开放端S7位于主板12的边缘上，第二闭合端S8位于缝隙12a之远离第二开放端S7的位置处。其中，主板12被缝隙12a隔成上部12b和下部12c，主板12包括相对设置的左侧边S4和右侧边S5，第二开放端S7位于左侧边S4上，第二闭合端S8沿着远离左侧边S4的方向延伸，缝隙12a的结构与微缝带111的结构相同。请参照图1，当主板12正对金属外壳11时，由于缝隙12a的结构与微缝带111的结构相同，使得主板12正对金属外壳11时，缝隙12a在金属外壳11上的正投影与微缝带111重合，即缝隙12a正对微缝带111，使得缝隙12a与匹配电容14形成缝隙天线，且该缝隙天线的信号能够通过射频收发 电路13较佳的从微缝带111中辐射出去，进一步提高天线装置1和移动终端100的天线性能。当然，在其他实施例中，缝隙的尺寸跟微缝带的尺寸可以不相同。当然，在其它实施例中，缝隙12a在金属外壳11上的正投影可以与微缝带111部分重合。
优选的，天线装置1还包括阻抗匹配电路15，阻抗匹配电路电15连接于射频收发电路13和匹配电容14之间。通过在射频收发电路13和匹配电容14之间设置阻抗匹配电路15，使得阻抗匹配电路15能够进一步与匹配电容14的内部阻抗互相适配，从而使得射频收发电路13接收或输出的信号为最大功率。
优选的，天线装置1还包括开关16和设置于下部的接地点17，开关16电连接于上部12b和下部12c的接地点17之间。其中，根据实际所需，在缝隙12a的对应位置上设置开关16和主板12上设置接地点17，以调制主板12上的频带，当开关124断开时，匹配电容14激励出的信号沿着缝隙12a的第二开放端S7至第二闭合端S8的方向在缝隙12a的周边传递，此时主板12的工作频带为高频带；当开关16闭合时，信号通过开关16直接接地，在第二闭合端S8的长度方向短路，此时主板12的工作频带为低频带，综上，通过将开关16和接地点17设置在主板12上来调制主板12的频带，以满足移动终端100内部各种元器件对不同频带的需求，从而提高天线装置1和移动终端100的天线性能。
在本发明实施例中的天线装置1和移动终端100通过在金属外壳11上设置具有第一开放端S3和第一闭合端S4的微缝带111，既利于主板12的信号辐射，又降低了金属外壳11的非金属占比，提高了移动终端100的外观整体性。
进一步的，主板12与金属外壳11接地连接，且金属外壳11接地连接的位置112围绕微缝带111设置。
在本实施例中，主板12与金属外壳11接地，通过使主板12形成地，而使得金属外壳11形成天线装置1的辐射部，可以理解的，金属外壳11接地连接的位置112围绕于微缝带111均匀设置，使得金属外壳11围绕微缝带111的部分作为辐射体辐射出的信号更为均匀，进一步提高天线装置1的天线性能。可以理解的，金属外壳11接地连接的位置的数量为3～8个，能够进一步保证 金属外壳11成为辐射体之后的天线性能。其中，金属外壳11接地连接的位置112为3个，其均匀围绕微缝带111周围设置，以使金属外壳11能够形成辐射性能较佳的辐射体。
进一步的，请参照图1，移动终端100还包括前壳组件2，金属外壳11设置于前壳组件2上形成容置空间D，主板12位于容置空间D，且主板12与前壳组件2接地连接。
在本实施例中，前壳组件2包括前壳和屏组件，屏组件设置于前壳上，屏组件被前壳遮挡的部分为非显示区，屏组件不被前壳遮挡的部分为显示区域，其一般能够进行显示和触控操作。前壳组件2的非显示面与主板12接地，使得前壳组件为主板12提供零电势，即前壳组件2为用于提供零电势给主板12接地点的总地，主板12相对于金属外壳11则作为金属外壳11的地，使得金属外壳11成为天线装置1的另一个辐射体，而前壳组件2在作为总地的同时亦形成天线装置1的另一个辐射体，进一步提高天线装置1的辐射性能。
可以理解的，前壳组件2开设前壳缝隙2a，该前壳缝隙2a正对缝隙12a，以保证缝隙12a被激励的信号能够更佳的通过前壳缝隙2a辐射出去。具体的，前壳组件2接地连接的位置围绕前壳缝隙2a均匀设置，该前壳组件2接地连接的位置与金属外壳11接地连接的位置112对应。前壳缝隙2a在主板12上的正投影与主板12的缝隙重合或者部分重合，以使前壳组件2形成天线装置1的另一个辐射部，使得天线装置1的信号能够从前壳组件2辐射出去，从而进一步提高天线装置1的辐射性能。
以上对本发明实施例进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上，本说明书内容不应理解为对本发明的限制。

Claims (20)

  1. 一种天线装置，其特征在于，包括金属外壳、主板、射频收发电路和匹配电容，所述金属外壳开设微缝带，所述微缝带具有相对设置的第一开放端和第一闭合端，所述第一开放端位于所述金属外壳的边缘上，所述第一闭合端位于所述微缝带之远离所述第一开放端的位置处，以使所述微缝带将所述金属外壳部分分隔，所述微缝带设有多条并排间隔设置的微缝；所述主板设置缝隙，所述缝隙将所述主板部分分隔成上部和下部，所述射频收发电路设置于所述主板的下部，所述匹配电容电连接于所述射频收发电路和所述主板的上部之间，所述射频收发电路的辐射信号经所述微缝带辐射出去。
  2. 如权利要求1所述的天线装置，其特征在于，所述缝隙正对所述微缝带。
  3. 如权利要求2所述的天线装置，其特征在于，所述缝隙具有相对设置的第二开放端和第二闭合端，所述第二开放端位于所述主板的边缘上，所述第二闭合端位于所述缝隙之远离所述第二开放端的的位置处。
  4. 如权利要求1所述的天线装置，其特征在于，所述天线装置还包括阻抗匹配电路，所述阻抗匹配电路电连接于所述射频收发电路和所述匹配电容之间。
  5. 如权利要求1所述的天线装置，其特征在于，所述天线装置还包括开关和设置于所述下部的接地点，所述开关电连接于所述上部和所述下部的接地点之间。
  6. 如权利要求2所述的天线装置，其特征在于，所述主板与所述金属外壳接地连接，且所述金属外壳接地连接的位置围绕所述微缝带设置。
  7. 如权利要求6所述的天线装置，其特征在于，所述金属外壳接地连接的位置的数量为3～8个。
  8. 如权利要求1所述的天线装置，其特征在于，所述金属外壳包括相对设置的一对长边和一对短边，一对所述短边连接在一对所述长边之间，所述第一开放端位于一条所述长边上，所述第一闭合端沿着所述短边的延伸方向延伸。
  9. 如权利要求2所述的天线装置，其特征在于，所述金属外壳包括相对设置的一对长边和一对短边，一对所述短边连接在一对所述长边之间，所述第一开放端位于一条所述长边上，所述第一闭合端沿着所述短边的延伸方向延伸。
  10. 如权利要求3所述的天线装置，其特征在于，所述金属外壳包括相对 设置的一对长边和一对短边，一对所述短边连接在一对所述长边之间，所述第一开放端位于一条所述长边上，所述第一闭合端沿着所述短边的延伸方向延伸。
  11. 如权利要求4所述的天线装置，其特征在于，所述金属外壳包括相对设置的一对长边和一对短边，一对所述短边连接在一对所述长边之间，所述第一开放端位于一条所述长边上，所述第一闭合端沿着所述短边的延伸方向延伸。
  12. 如权利要求5所述的天线装置，其特征在于，所述金属外壳包括相对设置的一对长边和一对短边，一对所述短边连接在一对所述长边之间，所述第一开放端位于一条所述长边上，所述第一闭合端沿着所述短边的延伸方向延伸。
  13. 如权利要求6所述的天线装置，其特征在于，所述金属外壳包括相对设置的一对长边和一对短边，一对所述短边连接在一对所述长边之间，所述第一开放端位于一条所述长边上，所述第一闭合端沿着所述短边的延伸方向延伸。
  14. 如权利要求7所述的天线装置，其特征在于，所述金属外壳包括相对设置的一对长边和一对短边，一对所述短边连接在一对所述长边之间，所述第一开放端位于一条所述长边上，所述第一闭合端沿着所述短边的延伸方向延伸。
  15. 如权利要求1至14任意一项所述的天线装置，其特征在于，所述微缝的缝宽为0.01mm～0.5mm。
  16. 如权利要求1至14任意一项所述的天线装置，其特征在于，所述微缝的数量为2～5条。
  17. 如权利要求1至14任意一项所述的天线装置，其特征在于，所述微缝中设置非信号屏蔽材料。
  18. 一种移动终端，其特征在于，包括如权利要求1～17任意一项所述的天线装置。
  19. 如权利要求18所述的移动终端，其特征在于，所述移动终端还包括前壳组件，所述金属外壳设置于所述前壳组件上形成容置空间，所述主板位于所述容置空间，且所述主板与所述前壳组件接地连接。
  20. 如权利要求19所述的移动终端，其特征在于，所述前壳组件开设前壳缝隙，所述前壳缝隙正对所述主板的缝隙。
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