WO2017117947A1 - 天线效率提升装置以及移动终端 - Google Patents

天线效率提升装置以及移动终端 Download PDF

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Publication number
WO2017117947A1
WO2017117947A1 PCT/CN2016/088827 CN2016088827W WO2017117947A1 WO 2017117947 A1 WO2017117947 A1 WO 2017117947A1 CN 2016088827 W CN2016088827 W CN 2016088827W WO 2017117947 A1 WO2017117947 A1 WO 2017117947A1
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WIPO (PCT)
Prior art keywords
branch
mobile terminal
switch
slit
antenna efficiency
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2016/088827
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English (en)
French (fr)
Inventor
黄奂衢
王君翊
黄丽珊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Le Holdings Beijing Co Ltd
Lemobile Information Technology (Beijing) Co Ltd
Original Assignee
Le Holdings Beijing Co Ltd
Lemobile Information Technology (Beijing) Co Ltd
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.)
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Publication date
Application filed by Le Holdings Beijing Co Ltd, Lemobile Information Technology (Beijing) Co Ltd filed Critical Le Holdings Beijing Co Ltd
Priority to US15/241,706 priority Critical patent/US20170195465A1/en
Publication of WO2017117947A1 publication Critical patent/WO2017117947A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
    • 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
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM

Definitions

  • the present application relates to the field of antenna technologies, and in particular, to an antenna efficiency improving apparatus and a mobile terminal.
  • Mobile terminals such as mobile phones
  • plastic for example, polycarbonate (Polycarbonate, PC), Acrylonitrile butadiene Styrene copolymers (ABS) or PC+ABS.
  • PC polycarbonate
  • ABS Acrylonitrile butadiene Styrene copolymers
  • PC+ABS PC+ABS.
  • the metal case has many advantages such as firmness, good hand feeling and good appearance.
  • more and more mobile terminals are beginning to use metal casings.
  • the metal casing has an effect on the performance of the antenna receiving and transmitting signals.
  • the antenna is not easily radiated under the metal surrounding or the complete metal frame, so it is often necessary to break in the form of a slit at a suitable place on the metal casing to help the antenna radiation.
  • These slits are quite sensitive to changes in the environment around the antenna (for example, when the user is hand-held, or when the user is close to the antenna while talking), which ultimately results in reduced performance of the antenna and affects the user experience.
  • One solution of the prior art is to provide multiple antennas, for example one primary antenna and at least one secondary antenna.
  • the software algorithm is used to realize the switching of the mobile phone between multiple antennas. If the user's hand is shaken and the performance of the antenna being used is greatly degraded, the system will control other antennas to replace the antenna that is in use and degraded for signal reception and transmission to obtain better communication quality. Therefore, based on the current space stacking, overall size and shape design of common mobile phones, there is often one main antenna and other auxiliary antennas, and the main antenna is mostly placed under the mobile phone, and the auxiliary antenna is often placed above the mobile phone. Or sideways.
  • the user's head is likely to be close to the mobile phone to listen to the sound, so that the antenna performance is often worse than the auxiliary antenna of the main antenna will be further deteriorated due to the proximity of the head, and the auxiliary antenna is switched.
  • It is responsible for the transmission and reception function, and often needs to reduce the power of its board to transmit and output to the antenna because it is close to the human body, so as to reduce the human body's specific absorption rate (SAR). Therefore, the communication quality of the antenna tends to drop drastically.
  • the present application proposes an antenna efficiency improving apparatus and a mobile terminal, which can improve the efficiency of the antenna.
  • an antenna efficiency improving apparatus for a mobile terminal, the mobile terminal having a metal casing having at least one discontinuous position, the antenna efficiency improving device including at least one branch The branch is coupled to both ends of the discontinuous positional slit for adjusting the efficiency of the antenna of the mobile terminal.
  • the discontinuous position is a break point or a broken or broken seam.
  • the one branch includes at least one of an inductor, a capacitor, and a switch.
  • the inductor and the capacitor are respectively adjustable devices.
  • the mobile terminal has a first broken joint and a second broken joint
  • the antenna efficiency lifting device includes a first branch and a second branch
  • the first branch is coupled to the first broken joint
  • the two ends of the second branch are coupled to the two ends of the second breaking seam.
  • the first branch includes a first switch and a first unit in series with the first switch
  • the second branch includes a second switch and a second unit in series with the second switch
  • the first unit and the second unit are respectively circuits composed of at least one of an inductor and a capacitor.
  • the antenna efficiency improving device further includes a control unit, configured to control logic states of the first switch and the second switch, the logic states including closing and opening.
  • first breaking seam and the second breaking seam are respectively disposed on a left frame and a right border of the metal casing.
  • first breaking seam and the second breaking seam are respectively disposed on an upper frame and a lower frame of the metal casing.
  • the first unit includes a first inductor and the second unit includes a second inductor.
  • a mobile terminal having a metal casing having at least one discontinuous position, the mobile terminal further comprising: an antenna and an antenna efficiency improving device;
  • the antenna efficiency improving device includes at least one branch coupled to both ends of the discontinuous position for adjusting the efficiency of the antenna of the mobile terminal.
  • the discontinuous position is a break point or a broken or broken seam.
  • the one branch includes at least one of an inductor, a capacitor, and a switch.
  • the inductor and the capacitor are respectively adjustable devices.
  • the mobile terminal has a first break and a second break
  • the antenna efficiency improvement device includes a first branch and a second branch, and the first branch is coupled to the first break
  • the two ends of the second branch are coupled to the two ends of the second slit.
  • the first branch includes a first switch and a first unit in series with the first switch
  • the second branch includes a second switch and a second unit in series with the second switch
  • the first unit and the second unit are respectively circuits composed of at least one of an inductor and a capacitor.
  • the antenna efficiency improving device further includes a control unit, configured to control logic states of the first switch and the second switch, the logic states including closing and opening.
  • the first slit and the second slit are respectively disposed on a left frame and a right border of the metal casing.
  • the first slit and the second slit are respectively disposed on an upper frame and a lower frame of the metal casing.
  • the first unit includes a first inductor and the second unit includes a second inductor.
  • the antenna efficiency improving device of the present application sets a branch composed of at least one of an inductor, a capacitor, and a switch at a discontinuous position of the metal casing of the mobile terminal to improve the efficiency of the antenna of the mobile terminal.
  • FIG. 1 exemplarily shows a left side view of a mobile phone with reference to the present application
  • Figure 2 exemplarily shows a right side view of the mobile phone of the reference design of the present application
  • 3a to 3d exemplarily show a structural block diagram of a plurality of embodiments of a branch of an antenna efficiency improving device of the present application
  • FIG. 4 exemplarily shows a schematic structural block diagram of an antenna efficiency improving apparatus of a first embodiment of the present application
  • 5a to 5c exemplarily show measured views of the antenna efficiency of the first embodiment of the present application.
  • circuit refers to a conductive loop formed by at least one component or subcircuit by electrical or electromagnetic connection.
  • element or circuit When an element or circuit is “coupled” or “connected” to another element or the element/circuit is “connected” between two nodes, it may be directly coupled or connected to the other element or the intermediate element may be present. The connections between them can be physical, logical, or a combination thereof.
  • an element when referred to as being “directly coupled” or “directly connected” to another element, it is meant that there are no intervening elements.
  • the present application relates to an antenna efficiency improving apparatus for a mobile terminal.
  • the mobile terminal is, for example, a mobile phone, a tablet, a wearable device, or the like.
  • the mobile terminal has a metal casing having at least one discontinuous position (such as a breakpoint, a slit or a broken slot, etc.), the antenna efficiency improving device including at least one branch, the branch coupling two of the discontinuous positions End, for adjusting the efficiency of the antenna of the mobile terminal.
  • the present application is described below based on the embodiments, but the present application is not limited to only these embodiments.
  • the mobile phone 10 has a metal casing, the left frame of the metal casing is provided with a slit 11 and the right frame of the metal casing is provided with a slit 12.
  • the slit 11 is located at the lower bezel of the metal casing and the slit 12 is located at the upper frame of the metal casing. It should be understood that the position of the slit is not limited to the above two cases.
  • the handset 10 includes an antenna system that is disposed within a metal housing.
  • the antenna efficiency improving device of the present application includes at least one branch coupled to both ends of the slit for adjusting the efficiency of the antenna of the mobile terminal.
  • the antenna efficiency improving device includes a branch coupled to both ends of the slit 11, or the antenna efficiency improving device includes two branches coupled to both ends of the slit 11 and both ends of the slit 12.
  • the branch includes at least one of a switch, an inductor, and a capacitor.
  • the branch can be an inductor or a capacitor, and the branch can also be a series or parallel connection of a switch and an inductor (capacitor).
  • the inductor and the capacitor are adjustable devices, that is, an inductor having an adjustable inductance value and a capacitor having an adjustable capacitance value.
  • FIGS. 3a to 3d exemplarily show schematic structural block diagrams of various embodiments of the branch of the antenna efficiency improving device of the present application.
  • the branch 20 includes an inductor 21 and a switch 22.
  • the inductor 21 and the switch 22 are connected in series between the first end 11a and the second end 11b of the slit 11.
  • the branch 20 includes an inductor 23 and a switch 24.
  • the inductor 23 and the switch 24 are connected in series between the first end 11a and the second end 11b of the slit 11.
  • the branch 20 includes a capacitor 25, a switch 26, and a switch 28.
  • the switch 26 and the capacitor 25 are connected in series between the first end 11a and the second end 11b of the slit 11.
  • the switch 28 is coupled between the first end 11a and the second end 11b of the slit 11.
  • the switch 26 and the capacitor 25 form a first branch, and the switch 28 constitutes a second branch, the first branch and the second branch being connected in parallel.
  • the branch 20 includes a switch 30, a switch 31, a capacitor 27, and an inductor 29.
  • Switch 30 and capacitor 27 are connected in series between the first end 11a and the second end 11b of the slit 11 to form a first branch.
  • the switch 31 and the inductor 29 are connected in series between the first end 11a and the second end 11b of the slit 11 to form a second branch.
  • the first branch and the second branch are connected in parallel. It should be understood that the branch of the antenna efficiency improving apparatus of the present application is not limited to the above embodiment.
  • the antenna efficiency enhancing device includes a first branch and a second branch.
  • the first branch is coupled to both ends of the slit 11 and the second branch is coupled to both ends of the slit 12.
  • the first branch includes a first switch and a first unit connected in series at both ends of the slit 11, and the second branch includes a second switch and a second unit connected in series at both ends of the slit 12, wherein the first unit and the second unit respectively It is a circuit composed of at least one of an inductor and a capacitor.
  • FIG. 4 exemplarily shows a structural block diagram of an antenna efficiency improving apparatus of the first embodiment of the present application.
  • the antenna efficiency improving device includes a first branch and a second branch.
  • the first branch is disposed at both ends of the slit 11, and the first branch includes a switch S11 and an inductor L11 connected in series between the first end 11a and the second end 11b of the slit 11, and the value of the inductor L11 is 33 nH.
  • the second branch is disposed at both ends of the slit 12, and the second branch includes a switch S12 and an inductor L12 connected in series between the first end 12a and the second end 12b of the slit 12, and the value of the inductor L12 is 15 nH.
  • the switch S11 and the switch S12 are opened and closed under the control of the control unit 23.
  • 5a to 5c exemplarily show measured views of the antenna efficiency of the second embodiment of the present application.
  • the measured curve of the antenna efficiency in free space is C1
  • the antenna efficiency is -4.2 dB to -6.2 dB.
  • the antenna efficiency improving apparatus of the present application increases the antenna efficiency by 0.9 dB-3.6 dB.
  • the measured curve of the antenna efficiency is C5; when the switch S11 is closed and the switch S12 is turned off The measured curve of antenna efficiency is C4.
  • the antenna efficiency improving device of the present application increases the antenna efficiency by 0.9 dB-3.6 dB.
  • the baseband chip of the mobile terminal receives an Received Signal Strength Indicator (RSSI), and the baseband chip determines whether to select the primary antenna or the secondary antenna according to the strength signal.
  • RSSI Received Signal Strength Indicator
  • the primary antenna side is selected.
  • the switch of the branch is closed, and when the auxiliary antenna is selected, the switch on the side of the auxiliary antenna is closed.
  • the efficiency of the antenna can be improved by designing a memory table or an adaptive algorithm to control the opening and closing of the switch and controlling the values of the inductance and/or capacitance.
  • the present application further provides a mobile terminal, including the antenna efficiency improving apparatus described in the foregoing embodiments.

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  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
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Abstract

天线效率提升装置，用于移动终端，所述移动终端具有金属外壳，所述金属外壳具有至少一个不连续位置，所述不连续位置例如为断点、断缝或断槽，所述天线效率提升装置包括至少一条支路，所述支路耦接所述不连续位置的两端，用于调节所述移动终端的天线的效率。本申请还提供了一种移动终端。

Description

天线效率提升装置以及移动终端
相关申请的交叉参考
本申请要求于2016年1月6日提交中国专利局、申请号为201610009581.4、名称为“天线效率提升装置以及移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及天线技术领域，具体涉及天线效率提升装置以及移动终端。
背景技术
移动终端(例如手机)通常采用塑料材质的外壳，例如，塑料材料为聚碳酸酯(Polycarbonate，PC)、丙烯腈-丁二烯-苯乙烯共聚物(Acrylonitrile butadiene Styrene copolymers，ABS)或PC+ABS。而金属外壳与塑料外壳相比，具有坚固、手感好和外观佳等诸多优势。目前，越来越多的移动终端开始使用金属外壳。
但是，金属外壳会对天线接收和发送信号的性能产生影响。现有技术的天线设计技术，天线不易在金属包围下或完整金属框下进行有效的辐射，故往往需要在金属外壳上适当的地方进行以断缝的形式断开，以帮助天线的辐射。而这些断缝对于天线周围环境的改变(如，使用者手握手机时，或者使用者在通话时其头部贴近天线)相当敏感，最终导致天线的性能降低，影响用户体验。
现有技术的一种解决方案是设置多个天线，例如设置一个主天线和至少一个辅天线。利用软件算法实现手机在多个天线之间进行切换。若使用者手握手机而造成正在使用的天线的性能大幅下降，系统便会控制其它天线替换正在使用且性能劣化的天线以进行信号的接收和发送，以获得较好的通讯品质。因此，基于目前常见手机的空间堆叠、整机尺寸以及外形设计，往往是有一支主天线与其他辅天线，并且，主天线多是置于手机下方，而辅天线则往往是置于手机的上方或侧方。
也就是说，当使用者的手握住手机或覆盖住主天线的敏感处(即断缝处)，以致于其性能在此场景常会有大幅的降低，系统便会切换至辅天线。
但是，在通话时，使用者的头部很可能会接近手机以便听音，以致于天线性能往往不如主天线的辅天线会再次因为头部的靠近而进一步劣化，再加之辅天线若因切换而担负收发功能，常常因其接近人体而需要降低其板端发射输出至天线的功率，以减少人体对电磁能量的吸收率(Specific Absorption Rate，SAR)。因此，天线的通讯品质往往会大幅下降。
发明内容
有鉴于此，本申请提出天线效率提升装置以及移动终端，能够提高天线的效率。
根据本申请的第一方面，提供一种天线效率提升装置，用于移动终端，所述移动终端具有金属外壳，所述金属外壳具有至少一个不连续位置，所述天线效率提升装置包括至少一条支路，所述支路耦接所述不连续位置断缝的两端，用于调节所述移动终端的天线的效率。
可选地，所述不连续位置为断点或断槽或断缝。
可选地，所述的一条支路包括电感、电容、开关的至少之一。
可选地，所述电感和电容分别为可调器件。
可选地，所述移动终端具有第一断断缝和第二断断缝，所述天线效率提升装置包括第一支路和第二支路，所述第一支路耦接所述第一断断缝的两端，所述第二支路耦接于所述第二断断缝的两端。
可选地，所述第一支路包括第一开关以及与所述第一开关串联的第一单元，所述第二支路包括第二开关以及与所述第二开关串联的第二单元，所述第一单元和第二单元分别是由电感、电容至少之一组成的电路。
可选地，所述天线效率提升装置还包括控制单元，所述控制单元用于控制所述第一开关和所述第二开关的逻辑状态，所述逻辑状态包括闭合和断开。
可选地，所述第一断断缝和第二断断缝分别设置于所述金属外壳的左边框和右边框。
可选地，所述第一断断缝和第二断断缝分别设置于所述金属外壳的上边框和下边框。
可选地，所述第一单元包括第一电感，所述第二单元包括第二电感。
根据本申请的另一方面，提供一种移动终端，所述移动终端具有金属外壳，所述金属外壳具有至少一个不连续位置，所述移动终端还包括：天线和天线效率提升装置；断缝所述天线效率提升装置包括至少一条支路，所述支路耦接所述不连续位置的两端，用于调节所述移动终端的天线的效率。
可选地，所述不连续位置为断点或断槽或断缝。
可选地，所述的一条支路包括电感、电容、开关的至少之一。
可选地，所述电感和电容分别为可调器件。
可选地，所述移动终端具有第一断缝和第二断缝，所述天线效率提升装置包括第一支路和第二支路，所述第一支路耦接所述第一断缝的两端，所述第二支路耦接于所述第二断缝的两端。
可选地，所述第一支路包括第一开关以及与所述第一开关串联的第一单元，所述第二支路包括第二开关以及与所述第二开关串联的第二单元，所述第一单元和第二单元分别是由电感、电容至少之一组成的电路。
可选地，所述天线效率提升装置还包括控制单元，所述控制单元用于控制所述第一开关和所述第二开关的逻辑状态，所述逻辑状态包括闭合和断开。
可选地，所述第一断缝和第二断缝分别设置于所述金属外壳的左边框和右边框。
可选地，所述第一断缝和第二断缝分别设置于所述金属外壳的上边框和下边框。
可选地，所述第一单元包括第一电感，所述第二单元包括第二电感。
本申请的天线效率提升装置在移动终端的金属外壳的不连续位置设置由电感、电容以及开关至少之一组成的支路来提升移动终端的天线的效率。
附图概述
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本 领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本申请的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1示例性地示出了本申请参考设计的手机的左视图；
图2示例性地示出了本申请参考设计的手机的右视图；
图3a至3d示例性地示出了本申请的天线效率提升装置的支路的多个实施例的结构框图；
图4示例性地示出了本申请第一实施例的天线效率提升装置的示意性结构框图；
图5a至5c示例性示出了本申请第一实施例的天线效率的实测图。
本申请的较佳实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
此外，本领域普通技术人员应当理解，在此提供的附图都是为了说明的目的，并且附图不一定是按比例绘制的。
同时，应当理解，在以下的描述中，“电路”是指由至少一个元件或子电路通过电气连接或电磁连接构成的导电回路。当称元件或电路“耦接或连接到”另一元件或称元件/电路“连接在”两个节点之间时，它可以是直接耦接或连接到另一元件或者可以存在中间元件，元件之间的连接可以是物理上的、逻辑上的、或者其结合。相反，当称元件“直接耦接到”或“直接连接到”另一元件时，意味着两者不存在中间元件。
除非上下文明确要求，否则整个说明书和权利要求书中的“包括”、“包含”等类似词语应当解释为包含的含义而不是排他或穷举的含义；也就是说，是“包括但不限于”的含义。
在本申请的描述中，需要理解的是，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。此外，在本申请的描述中， 除非另有说明，“多个”的含义是两个或两个以上。
本申请涉及一种用于移动终端的天线效率提升装置。移动终端例如为手机、平板电脑、可穿戴设备等。移动终端具有金属外壳，金属外壳具有至少一个不连续位置(例如断点、断缝或者断槽等)，所述天线效率提升装置包括至少一条支路，所述支路耦接不连续位置的两端，用于调节所述移动终端的天线的效率。以下基于实施例对本申请进行描述，但是本申请并不仅仅限于这些实施例。
参照图1和图2，手机10具有金属外壳，金属外壳的左边框设置有断缝11，金属外壳的右边框设置有断缝12。在另一个实施例中，断缝11位于金属外壳的下边框，断缝12位于金属外壳的上边框。应当理解，断缝的位置不限于上述两种情况。
手机10包括天线系统，该天线系统设置于金属外壳内。
本申请的天线效率提升装置包括至少一条支路，支路耦接断缝的两端，用于调节所述移动终端的天线的效率。例如天线效率提升装置包括一条支路，耦接于断缝11的两端，或者天线效率提升装置包括两条支路，分别耦接于断缝11的两端和断缝12的两端。
支路包括开关、电感、电容至少之一。例如支路可以是一个电感或电容，支路也可以是一个开关和电感(电容)的串联或者并联等。优选地，电感和电容为可调器件，即电感值可调的电感、电容值可调的电容。
支路包括多种形式，图3a至3d示例性地示出了本申请的天线效率提升装置的支路的多个实施例的示意性结构框图。
参照图3a，支路20包括电感21和开关22。电感21和开关22串联在断缝11的第一端11a和第二端11b之间。
参照图3b，支路20包括电感23和开关24。电感23和开关24串联在断缝11的第一端11a和第二端11b之间。
参照图3c，支路20包括电容25、开关26以及开关28。开关26和电容25串联在断缝11的第一端11a和第二端11b之间。开关28耦接在断缝11的第一端11a和第二端11b之间。开关26和电容25组成第一分支，开关28组成第二分支，第一分支和第二分支并联。
参照图3d，支路20包括开关30、开关31、电容27和电感29。开关 30和电容27串联在断缝11的第一端11a和第二端11b之间，组成第一分支。开关31和电感29串联在断缝11的第一端11a和第二端11b之间，组成第二分支。第一分支和第二分支并联。应当理解，本申请的天线效率提升装置的分支并不限于以上实施例。
在移动终端的外形、结构、布局以及天线形式确定的形况下，本领域的技术人员可以通过仿真或者实验来确定并优化支路的数量，开关、电感和电容的数量以及连接关系，开关的断开/闭合状态。
在另一个实施例中，天线效率提升装置包括第一支路和第二支路。第一支路耦接于断缝11的两端，第二支路耦接于断缝12的两端。第一支路包括串联在断缝11两端的第一开关和第一单元，第二支路包括串联在断缝12两端的第二开关和第二单元，其中，第一单元和第二单元分别是由电感、电容至少之一组成的电路。
图4示例性地示出了本申请第一实施例的天线效率提升装置的结构框图。天线效率提升装置包括第一支路和第二支路。
第一支路设置于断缝11的两端，第一支路包括串联在断缝11的第一端11a和第二端11b之间的开关S11和电感L11，电感L11的值为33nH。第二支路设置在断缝12的两端，第二支路包括串联在断缝12的第一端12a和第二端12b之间的开关S12和电感L12，电感L12的值为15nH。开关S11和开关S12在控制单元23的控制下断开和闭合。
图5a至图5c示例性地示出了本申请第二实施例的天线效率的实测图。以低频为例，当开关S11和开关S12都断开时，在自由空间下的天线效率的实测曲线为C1，天线效率为-4.2dB至-6.2dB。
当在右头手模的场景下，即手持该手机接近使用者右耳处时，当开关S11和开关S12都断开时，天线效率的实测曲线为C3；开关S12闭合，开关S11断开时天线效率的实测曲线为C2。参照图5b，本申请的天线效率提升装置使得天线效率有0.9dB-3.6dB的提升。
当在左头手模的场景下，即手持该手机接近使用者左耳处时，当开关S11和开关S12都断开时，天线效率的实测曲线为C5；开关S11闭合，开关S12断开时天线效率的实测曲线为C4。
本申请的天线效率提升装置使得天线效率有0.9dB-3.6dB的提升。
在一些实施例中，移动终端的基带芯片接收天线的强度信号(Received Signal Strength Indicator，RSSI)，基带芯片根据该强度信号判断选择主天线或辅天线，当选择主天线时，将主天线侧的支路的开关闭合，在选择辅天线时，将辅天线侧的开关闭合。或者通过设计好的内存表或自适应的算法控制开关的断开和闭合以及控制电感和/或电容的取值，以使天线的效率得以提升。
本申请还提出一种移动终端，包括上述实施例所述的天线效率提升装置。
以上所述仅为本申请的优选实施例，并不用于限制本申请，对于本领域技术人员而言，本申请可以有各种改动和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (20)

  1. 一种天线效率提升装置，用于移动终端，其中，所述移动终端具有金属外壳，所述金属外壳具有至少一个不连续位置，所述天线效率提升装置包括至少一条支路，所述支路耦接所述不连续位置的两端，用于调节所述移动终端的天线的效率。
  2. 根据权利要求1所述的天线效率提升装置，其中，所述不连续位置为断点或断槽或断缝。
  3. 根据权利要求1或2所述的天线效率提升装置，其中，所述的一条支路包括电感、电容和开关中的至少之一。
  4. 根据权利要求3所述的天线效率提升装置，其中，所述电感和电容分别为可调器件。
  5. 根据权利要求4所述的天线效率提升装置，其中，所述移动终端具有第一断缝和第二断缝，所述天线效率提升装置包括第一支路和第二支路，所述第一支路耦接所述第一断缝的两端，所述第二支路耦接于所述第二断缝的两端。
  6. 根据权利要求5所述的天线效率提升装置，其中，所述第一支路包括第一开关以及与所述第一开关串联的第一单元，所述第二支路包括第二开关以及与所述第二开关串联的第二单元，所述第一单元和第二单元分别是由电感、电容至少之一组成的电路。
  7. 根据权利要求6所述的天线效率提升装置，其中，所述天线效率提升装置还包括控制单元，所述控制单元用于控制所述第一开关和所述第二开关的逻辑状态，所述逻辑状态包括闭合和断开。
  8. 根据权利要求5所述的天线效率提升装置，其中，所述第一断缝和第二断缝分别设置于所述金属外壳的左边框和右边框。
  9. 根据权利要求5所述的天线效率提升装置，其中，所述第一断缝和第二断缝分别设置于所述金属外壳的上边框和下边框。
  10. 根据权利要求6所述的天线效率提升装置，其中，所述第一单元包括第一电感，所述第二单元包括第二电感。
  11. 一种移动终端，其中，所述移动终端具有金属外壳，所述金属外壳具有至少一个不连续位置，所述移动终端还包括：天线和天线效率提升装置； 所述天线效率提升装置包括至少一条支路，所述支路耦接所述不连续位置的两端，用于调节所述天线的效率。
  12. 根据权利要求11所述的移动终端，其中，所述不连续位置为断点或断槽或断缝。
  13. 根据权利要求11或12所述的移动终端，其中，所述的一条支路包括电感、电容、开关的至少之一。
  14. 根据权利要求13所述的移动终端，其中，所述电感和电容分别为可调器件。
  15. 根据权利要求14所述的移动终端，其中，所述移动终端具有第一断缝和第二断缝，所述天线效率提升装置包括第一支路和第二支路，所述第一支路耦接所述第一断缝的两端，所述第二支路耦接于所述第二断缝的两端。
  16. 根据权利要求15所述的移动终端，其中，所述第一支路包括第一开关以及与所述第一开关串联的第一单元，所述第二支路包括第二开关以及与所述第二开关串联的第二单元，所述第一单元和第二单元分别是由电感、电容至少之一组成的电路。
  17. 根据权利要求16所述的移动终端，其中，所述天线效率提升装置还包括控制单元，所述控制单元用于控制所述第一开关和所述第二开关的逻辑状态，所述逻辑状态包括闭合和断开。
  18. 根据权利要求15所述的移动终端，其中，所述第一断缝和第二断缝分别设置于所述金属外壳的左边框和右边框。
  19. 根据权利要求15所述的移动终端，其中，所述第一断缝和第二断缝分别设置于所述金属外壳的上边框和下边框。
  20. 根据权利要求16所述的移动终端，其中，所述第一单元包括第一电感，所述第二单元包括第二电感。
PCT/CN2016/088827 2016-01-06 2016-07-06 天线效率提升装置以及移动终端 Ceased WO2017117947A1 (zh)

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