WO2016127668A1 - 天线模块及移动终端 - Google Patents

天线模块及移动终端 Download PDF

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Publication number
WO2016127668A1
WO2016127668A1 PCT/CN2015/093295 CN2015093295W WO2016127668A1 WO 2016127668 A1 WO2016127668 A1 WO 2016127668A1 CN 2015093295 W CN2015093295 W CN 2015093295W WO 2016127668 A1 WO2016127668 A1 WO 2016127668A1
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WO
WIPO (PCT)
Prior art keywords
antenna
mobile terminal
metal frame
point
electrically connected
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/CN2015/093295
Other languages
English (en)
French (fr)
Inventor
熊晓峰
王霖川
薛宗林
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.)
Xiaomi Inc
Original Assignee
Xiaomi Inc
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 Xiaomi Inc filed Critical Xiaomi Inc
Priority to MX2016000250A priority Critical patent/MX358803B/es
Priority to KR1020157036385A priority patent/KR101786756B1/ko
Priority to JP2016574329A priority patent/JP6208384B2/ja
Priority to RU2016100189A priority patent/RU2627942C2/ru
Publication of WO2016127668A1 publication Critical patent/WO2016127668A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • 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
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • 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
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • 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
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H01Q1/2266—Supports; Mounting means by structural association with other equipment or articles used with computer equipment disposed inside the computer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to an antenna module and a mobile terminal.
  • CA carrier aggregation
  • MIMO multiple-input multiple-output
  • an embodiment of the present disclosure provides an antenna module and a mobile terminal, which are used to improve receiving performance of an antenna of the mobile terminal.
  • an antenna module including: a first antenna and a second antenna;
  • the first ground point of the first antenna is electrically connected to the first segment metal frame of the mobile terminal through a first connection point, and the first feed point of the first antenna is electrically connected to the The first section of the metal frame;
  • the second antenna is electrically connected to the second metal frame of the mobile terminal through a third connection point, and a gap is formed between the second metal frame and the first metal frame, the second The segment metal frame is electrically connected to a ground point of the mobile terminal through a first contact point.
  • the first contact point may be electrically connected to a ground point of the mobile terminal through a metal casing of the earphone of the mobile terminal.
  • a discharge capacitor is connected between the first contact point and the metal casing.
  • the second segment of the metal frame may also be electrically connected to the metal casing through the second contact point, and the second contact point is disposed on an outer side of the earphone.
  • the second metal frame may also be electrically connected to the metal casing through a third contact point, and the third contact point is disposed on the other outer side of the earphone.
  • the grounding point of the mobile terminal may be a grounding point of a PCB board on the mobile terminal.
  • the first antenna may be a diversity antenna
  • the second antenna may be a wifi antenna
  • a mobile terminal including:
  • a memory for storing processor executable instructions
  • the mobile terminal further includes an antenna module, and the antenna module is configured to:
  • the first ground point of the first antenna is electrically connected to the first segment metal frame of the mobile terminal through a first connection point, and the first feed point of the first antenna is electrically connected to the The first section of the metal frame;
  • the second antenna is electrically connected to the second metal frame of the mobile terminal through a third connection point, and a gap is formed between the second metal frame and the first metal frame, the second The segment metal bezel is electrically connected to the grounding point of the mobile terminal through a first contact point.
  • the technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: the second segment of the metal frame is electrically connected to the grounding point of the mobile terminal through the first contact point, so that the resonant frequency of the second antenna can be tuned, and the second The crosstalk generated by the antenna to the first antenna ensures isolation between the first antenna and the second antenna.
  • FIG. 1 is a schematic structural diagram of an antenna module according to an exemplary embodiment.
  • FIG. 2 is a schematic structural diagram of an antenna module according to an exemplary embodiment.
  • FIG. 3 is a schematic structural diagram of an antenna module according to an exemplary embodiment.
  • FIG. 4A is a schematic diagram showing test results of a first antenna according to an exemplary embodiment.
  • FIG. 4B is a schematic diagram showing test results of a second antenna according to an exemplary embodiment.
  • 4C is a schematic diagram showing test results of isolation between a first antenna and a second antenna, according to an exemplary embodiment.
  • FIG. 5 is a block diagram of a mobile terminal according to an exemplary embodiment.
  • FIG. 1 is a schematic structural diagram of an antenna module according to an exemplary embodiment.
  • the antenna module can be applied to a mobile terminal (for example, a smart phone or a tablet).
  • the antenna module includes: a first antenna. 11 and the second antenna 21.
  • the first ground point 14 of the first antenna 11 is electrically connected to the first metal frame 17 of the mobile terminal through the first connection point 14 , and the first feed point 13 of the first antenna 11 is electrically connected through the second connection point 15 .
  • the first antenna 11 can emit greater radiant energy outward through the first loop.
  • the second antenna 21 is electrically connected to the second metal frame 27 of the mobile terminal 10 through the third connection point 24, and the slit 40 is opened between the second metal frame 27 and the first metal frame 17, and the second metal frame is opened.
  • 27 is electrically connected to the grounding point of the mobile terminal 10 through the first contact point 31, and the second feeding point 23 of the second antenna 21 forms a second loop through the second metal frame 27 and the grounding point on the mobile terminal 10, and second The feed point 23 forms a third loop with the second ground point 22 of the second antenna 21.
  • the second antenna 21 can emit greater radiant energy outward at two frequency points through the second loop and the third loop, respectively.
  • the second metal frame 27 is electrically connected to the grounding point of the mobile terminal 10 through the first contact point 31, so that the resonant frequency of the second antenna 21 can be tuned, and the second antenna 21 can be reduced.
  • the crosstalk generated by the antenna 11 ensures the isolation between the first antenna 11 and the second antenna 21.
  • the first contact point may be electrically connected to the ground point of the mobile terminal through the metal housing of the earphone of the mobile terminal.
  • the first contact point may be connected to the metal casing with a discharge capacitor.
  • the second metal frame can also be electrically connected to the metal casing through the second contact point, and the second contact point is disposed on an outer side of the earphone.
  • the second metal frame can also be electrically connected to the metal casing through the third contact point, and the third contact point is disposed on the other outer side of the earphone.
  • the grounding point of the mobile terminal may be the grounding point of the PCB board on the mobile terminal.
  • the first antenna may be a diversity antenna
  • the second antenna may be a wifi antenna
  • the antenna module provided by the embodiment of the present disclosure can reduce crosstalk between the first antenna and the second antenna, and ensures isolation between the first antenna and the second antenna.
  • the first antenna 11 may be an LTE MIMO diversity antenna (hereinafter referred to as LTE MIMO diversity antenna).
  • LTE MIMO diversity antenna the coverage frequency of the diversity antenna ranges from 700 MHz to 2700 MHz
  • the second antenna 21 shown in FIG. 3 can be a wifi antenna
  • the distance between the diversity antenna and the wifi antenna is the width of the gap 40 between the two.
  • the width of the slit is, for example, 1 mm.
  • the wifi antenna adopts a double loop antenna
  • the second feed point 23 is below the second antenna 21
  • the metal break ring 20 on the right side is used as the main radiator
  • the LTE MIMO diversity line adopts the structure of the single loop plus parasitic unit 16. It will be understood by those skilled in the art that the present invention is not limited by the description of the present disclosure, and the present disclosure is also applicable to other antennas on the mobile terminal 10.
  • the second length of metal frame 27 is electrically connected to the grounding point of the PCB board 41 of the mobile terminal 10 through the first contact point 31.
  • a discharge capacitor is connected between the first contact point 31 and the PCB board 41 (not shown)
  • an inductance may be connected between the first contact point 31 and the PCB board 41, and the second antenna 21 may be tuned to a specific resonant frequency by a discharge capacitor or an inductor, so that The headphone 51 and the PCB board 41 are integrated to be applicable to antennas of different resonance frequencies.
  • FIG. 3 is a schematic structural diagram of an antenna module according to an exemplary embodiment of the present invention; on the basis of the embodiment shown in FIG. 1 or FIG. 2, as shown in FIG. 3, in an embodiment, the mobile terminal 10 is The grounding point may be the grounding point of the PCB board 41 on the mobile terminal 10, and the second section metal frame 27 is electrically connected to the grounding point of the PCB board 41 through the metal casing (not shown) of the earphone 51 of the mobile terminal 10. In an embodiment, the earphone 51 is located above the area of the second antenna 21.
  • the earphone 51 as a metal casing and performing grounding processing through the PCB board 41, it is possible to prevent the natural resonance higher-order mode inside the earphone 51 from unnecessarily interfering with the first antenna 11 and the second antenna 21, The first antenna 11 and the second antenna 21 are prevented from generating unnecessary antenna frequency offsets, thereby improving antenna performance.
  • the second metal frame 27 may be provided with a second contact point 32 and a third contact point 33.
  • the second contact point 32 and the third contact point 33 are both electrically connected to the metal casing of the earphone 51.
  • the interference of the self-resonance of the earphone 51 on the first antenna 11 and the second antenna 21 can be weakened by providing the third contact point 33 on the second metal frame 27.
  • the isolation between the first antenna 11 and the second antenna 21 can be further enhanced, and the frequency offset phenomenon of the first antenna 11 and the second antenna 21 after the insertion of the earphone 51 by the mobile terminal 10 is avoided.
  • both the second contact point 32 and the third contact point 33 are electrically connected to the metal casing of the earphone 51, and the earphone 51 weakens the self-resonance of the earphone 51 to the first antenna 11 by grounding the metal casing.
  • the interference of the second antenna 21 enhances the isolation of the wifi antenna and the diversity antenna.
  • FIG. 4A is a schematic diagram showing test results of a first antenna according to an exemplary embodiment.
  • the horizontal axis represents frequency and the vertical axis represents crosstalk caused by the second antenna 21 to the first antenna 11, in units of decibels. (dB).
  • the first antenna 11 is a diversity antenna
  • the symbol " ⁇ " is numbered 1
  • the horizontal axis corresponds to a frequency of 2.4 GHz
  • the vertical axis corresponds to a value of -16.205 dB
  • the symbol " ⁇ " is numbered at two, the horizontal axis.
  • the corresponding frequency is 2.5 GHz
  • the vertical axis corresponds to -9.3160 dB
  • the symbol " ⁇ " is numbered 3
  • the horizontal axis corresponds to a frequency of 5.15 GHz
  • the vertical axis corresponds to a value of -10.371 dB
  • the symbol " ⁇ " For 4 places, the horizontal axis corresponds to a frequency of 5.8 GHz and the vertical axis corresponds to a value of -25.938 dB.
  • the diversity antenna At the first resonant frequency (around 2.4 GHz) point of the diversity antenna (corresponding to between 1 and 2), the loss of the diversity antenna is minimized, the loss value is less than -16 dB, at the second resonant frequency of the diversity antenna (5.8 GHz)
  • the diversity antenna can also achieve a small loss, which is smaller than the corresponding -25.938 dB at the reference numeral 4, and thus it can be known that the present disclosure can greatly reduce the crosstalk of the wifi antenna to the diversity antenna.
  • the diversity antenna is capable of emitting greater radiant energy outward through the first loop.
  • FIG. 4B is a schematic diagram showing test results of a second antenna according to an exemplary embodiment.
  • the horizontal axis represents frequency and the vertical axis represents crosstalk caused by the first antenna 11 to the second antenna 21 in units of decibels. (dB).
  • the symbol " ⁇ " is numbered 5.
  • the horizontal axis corresponds to a frequency of 770 MHz, and the vertical axis corresponds to -4.7798 dB.
  • the symbol " ⁇ ” is numbered six, and the horizontal axis corresponds to The frequency is 960MHZ, the vertical axis corresponds to -3.6482dB, the symbol “ ⁇ ” is 7, the horizontal axis corresponds to 1.7082GHZ, the vertical axis corresponds to -25.202dB, and the symbol " ⁇ ” is labeled 8.
  • the horizontal axis corresponds to a frequency of 2.17 GHz
  • the vertical axis corresponds to a value of -15.382 dB
  • the symbol " ⁇ ” is numbered 9
  • the horizontal axis corresponds to a frequency of 2.69 GHz
  • the vertical axis corresponds to a value of -8.2518 dB.
  • the third resonant frequency of the wifi antenna (around 1.7082 GHz) (corresponding to the position at the number 7) wifi antenna reaches the minimum loss, the loss value reaches -25 dB, and the fourth resonant frequency of the wifi antenna (less than the corresponding number of 2.17)
  • the GHz) point (corresponding to the number 8), the wifi antenna can also achieve a small loss, and thus it can be known that the present disclosure can greatly reduce the crosstalk of the diversity antenna to the wifi antenna, thereby enabling the wifi antenna to pass the second loop and the The three loops emit more radiant energy outward.
  • FIG. 4C is a schematic diagram showing test results of isolation between a first antenna and a second antenna according to an exemplary embodiment.
  • the horizontal axis represents frequency and the vertical axis represents first antenna 11 and second antenna.
  • the symbol " ⁇ " is numbered 10
  • the horizontal axis corresponds to a frequency of 820 MHz
  • the vertical axis corresponds to -42.355 dB
  • the symbol " ⁇ " is 11
  • the horizontal axis corresponds to a frequency of 960 MHz
  • the vertical axis corresponds to the value.
  • the value is -34.734dB, the symbol " ⁇ " is 12, the horizontal axis corresponds to 1.71GHZ, the vertical axis corresponds to -28.973dB, the symbol " ⁇ ” is 13, and the horizontal axis corresponds to 2.17GHZ.
  • the vertical axis corresponds to a value of -19.948 dB.
  • the symbol " ⁇ " is 14, the horizontal axis corresponds to a frequency of 2.3 GHz, the vertical axis corresponds to a value of -17.633 dB, and the symbol “ ⁇ ” is numbered at 15, The frequency corresponding to the axis is 2.4 GHz, the value corresponding to the vertical axis is -17.447 dB, the symbol " ⁇ " is 17, the horizontal axis corresponds to 2.49 GHz, and the vertical axis corresponds to -18.125 dB.
  • the symbol “ ⁇ ” The number is 17 and the horizontal axis corresponds to a frequency of 2.69 GHz and the vertical axis corresponds to a value of -25.398 dB.
  • the isolation between the diversity antenna and the wifi antenna is below -15 dB, and it can be seen that the implementation of the present disclosure can greatly enhance the isolation between the first antenna and the second antenna. degree.
  • FIG. 5 is a block diagram of a mobile terminal according to an exemplary embodiment.
  • the mobile terminal 500 can be a mobile phone, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • the mobile terminal 500 can include one or more of the following components: a processing component 502, a memory 504, a power component 506, a multimedia component 508, an audio component 510, an input/output (I/O) interface 512, and a sensor component 514. And communication component 516.
  • Processing component 502 typically controls the overall operations of mobile terminal 500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • Processing component 502 can include one or more processors 520 to execute instructions to perform all or part of the steps of the above described methods.
  • processing component 502 can include one or more modules to facilitate interaction between component 502 and other components.
  • processing component 502 can include a multimedia module to facilitate interaction between multimedia component 508 and processing component 502.
  • Memory 504 is configured to store various types of data to support operation at device 500. Examples of such data include instructions for any application or method operating on the mobile terminal 500, contact data, phone book data, Messages, pictures, videos, etc.
  • the memory 504 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Disk Disk or Optical Disk.
  • Power component 506 provides power to various components of mobile terminal 500.
  • Power component 506 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for mobile terminal 500.
  • the multimedia component 508 includes a screen between the mobile terminal 500 and the user that provides an output interface.
  • the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may sense not only the boundary of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation.
  • the multimedia component 508 includes a front camera and/or a rear camera. When the device 500 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 510 is configured to output and/or input an audio signal.
  • the audio component 510 includes a microphone (MIC) that is configured to receive an external audio signal when the mobile terminal 500 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in memory 504 or transmitted via communication component 516.
  • audio component 510 also includes a speaker for outputting an audio signal.
  • the I/O interface 512 provides an interface between the processing component 502 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.
  • Sensor component 514 includes one or more sensors for providing various aspects of state assessment for mobile terminal 500.
  • sensor component 514 can detect an open/closed state of device 500, a relative positioning of components, such as the display and keypad of mobile terminal 500, and sensor component 514 can also detect a component of mobile terminal 500 or mobile terminal 500. The location changes, the presence or absence of contact of the user with the mobile terminal 500, the orientation or acceleration/deceleration of the mobile terminal 500, and the temperature change of the mobile terminal 500.
  • Sensor assembly 514 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 514 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 516 is configured to facilitate wired or wireless communication between mobile terminal 500 and other devices.
  • the mobile terminal 500 can access a wireless network based on a communication standard such as WiFi, 2G or 3G, or a combination thereof.
  • communication component 516 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
  • the communication component 516 further includes a near field communication (NFC) module, To promote short-range communication.
  • NFC near field communication
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the mobile terminal 500 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), A gated array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA gated array
  • controller microcontroller, microprocessor, or other electronic component implementation for performing the above methods.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Telephone Set Structure (AREA)

Abstract

本公开是关于一种天线模块及移动终端，用以提高移动终端的天线性能。天线模块包括：第一天线和第二天线；第一天线的第一接地点通过第一连接点电连接到移动终端的第一段金属边框上，第一天线的第一馈点通过第二连接点电连接到第一段金属边框上；第二天线通过第三连接点电连接到移动终端的第二段金属边框上，第二段金属边框通过第一接触点电连接到移动终端的接地点上。本公开技术方案可以减少第二天线对第一天线产生的串扰，确保第一天线和第二天线之间的隔离度。

Description

天线模块及移动终端
本申请基于申请号为201510073377.4、申请日为2015.02.11的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及通信技术领域，尤其涉及一种天线模块及移动终端。
背景技术
随着载波聚合(CA)技术的发展，在手机中设计更多数量的天线成为可能，更多数量的天线可以使手机能够接收到不同类型的无线信号。在一个覆盖长期演进(Long Term Evolution，简称为LTE)频段金属框天线典型布局中，通常会将LTE多输入多输出(Multiple-Input Multiple-Output，简称为MIMO)分集天线与wifi天线集成在同一个移动终端上，在两天线之间距离较近的情形下，会导致两天线之间的严重耦合，进而会影响天线的接收性能。
发明内容
为克服相关技术中存在的问题，本公开实施例提供一种天线模块及移动终端，用以提高移动终端的天线的接收性能。
根据本公开实施例的第一方面，提供一种天线模块，包括：第一天线和第二天线；
所述第一天线的第一接地点通过第一连接点电连接到所述移动终端的第一段金属边框上，所述第一天线的第一馈点通过第二连接点电连接到所述第一段金属边框上；
所述第二天线通过第三连接点电连接到所述移动终端的第二段金属边框上，所述第二段金属边框与所述第一段金属边框之间开设有缝隙，所述第二段金属边框通过第一接触点电连接到所述移动终端的接地点。
在一实施例中，所述第一接触点可以通过所述移动终端的耳机的金属外壳电连接到所述移动终端的接地点。
在一实施例中，所述第一接触点与所述金属外壳之间连接有放电电容。
在一实施例中，所述第二段金属边框还可以通过第二接触点与金属外壳电连接，所述第二接触点设置在所述耳机的一个外侧。
在一实施例中，所述第二段金属边框还可以通过第三接触点与所述金属外壳电连接，所述第三接触点设置在所述耳机的另一个外侧。
在一实施例中，所述移动终端的接地点可以为所述移动终端上的PCB板的接地点。
在一实施例中，所述第一天线可以为分集天线，所述第二天线可以为wifi天线。
根据本公开实施例的第二方面，提供一种移动终端，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述移动终端还包括天线模块，所述天线模块被配置为：
第一天线和第二天线；
所述第一天线的第一接地点通过第一连接点电连接到所述移动终端的第一段金属边框上，所述第一天线的第一馈点通过第二连接点电连接到所述第一段金属边框上；
所述第二天线通过第三连接点电连接到所述移动终端的第二段金属边框上，所述第二段金属边框与所述第一段金属边框之间开设有缝隙，所述第二段金属边框电通过第一接触点连接到所述移动终端的接地点上。
本公开的实施例提供的技术方案可以包括以下有益效果：第二段金属边框通过第一接触点电连接到移动终端的接地点上，从而可以调谐第二天线的谐振频率，还可以减少第二天线对第一天线产生的串扰，确保了第一天线和第二天线之间的隔离度。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
图1是根据一示例性实施例示出的天线模块的结构示意图。
图2是根据一示例性实施例一示出的天线模块的结构示意图。
图3是根据一示例性实施例二示出的天线模块的结构示意图。
图4A是根据一示例性实施例示出的第一天线的测试结果的示意图。
图4B是根据一示例性实施例示出的第二天线的测试结果的示意图。
图4C是根据一示例性实施例示出的第一天线与第二天线之间的隔离度的测试结果示意图。
图5是根据一示例性实施例示出的一种移动终端的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
图1是根据一示例性实施例示出的天线模块的结构示意图，该天线模块可以应用在移动终端(例如：智能手机、平板电脑)上，如图1所示，该天线模块包括：第一天线11和第二天线21。
其中，第一天线11的第一接地点14通过第一连接点14电连接到移动终端的第一段金属边框17上，第一天线11的第一馈点13通过第二连接点15电连接到第一段金属边框17上，第一馈点13、第一段金属边框17和第一接地点14形成第一回路。第一天线11可以通过第一回路向外发射更大的辐射能量。
第二天线21通过第三连接点24电连接到移动终端10的第二段金属边框27上，第二段金属边框27与第一段金属边框17之间开设有缝隙40，第二段金属边框27通过第一接触点31电连接到移动终端10的接地点上，第二天线21的第二馈点23通过第二段金属边框27、移动终端10上的接地点形成第二回路，第二馈点23与第二天线21的第二接地点22形成第三回路。第二天线21可以通过第二回路和第三回路分别在两个频率点向外发射更大的辐射能量。
在本实施例中，第二段金属边框27通过第一接触点31电连接到移动终端10的接地点上，从而可以调谐第二天线21的谐振频率，还可以减少第二天线21对第一天线11产生的串扰，确保了第一天线11和第二天线21之间的隔离度。
在一实施例中，第一接触点可以通过移动终端的耳机的金属外壳电连接到移动终端的接地点。
在一实施例中，第一接触点可以与金属外壳之间连接有放电电容。
在一实施例中，第二段金属边框还可以通过第二接触点与金属外壳电连接，第二接触点设置在耳机的一个外侧。
在一实施例中，第二段金属边框还可以通过第三接触点与金属外壳电连接，第三接触点设置在耳机的另一个外侧。
在一实施例中，移动终端的接地点可以为移动终端上的PCB板的接地点。
在一实施例中，第一天线可以为分集天线，第二天线可以为wifi天线。
至此，本公开实施例提供的天线模块，可以减少第一天线和第二天线之间的串扰，确保了第一天线和第二天线之间的隔离度。
下面以具体实施例来说明本公开实施例提供的技术方案。
图2是根据一示例性实施例一示出的天线模块的结构示意图；在上述图1所示实施例的基础上，如图2所示，第一天线11可以为LTE MIMO分集天线(以下简称分集天线)，分集天线的覆盖频率范围为700MHz～2700MHz，图3所示的右侧为第二天线21可以为wifi天线，分集天线和wifi天线之间距离为二者之间的缝隙40的宽度，缝隙的宽度例如为1mm。wifi天线采用双loop天线，第二馈点23在第二天线21的下方，利用右侧的金属断环20作为主辐射体，LTE MIMO分集线采用单环路加寄生单元16的结构。本领域技术人员可以理解的是，图2所示仅为一个示例性说明并不能形成对本公开的限制，本公开还可以适用移动终端10上的其它天线。
如图2所示，第二段金属边框27通过第一接触点31电连接到移动终端10的PCB板41的接地点。在一实施例中，第一接触点31与PCB板41之间连接有放电电容(图中未 视)，可替换地，第一接触点31与PCB板41之间可以连接有电感(图中未视)，通过放电电容或者电感可以将第二天线21调谐在特定的谐振频率，从而可以将耳机51和PCB板41等进行集成后能够适用于不同谐振频率的天线。
图3是根据一示例性实施例二示出的天线模块的结构示意图；在上述图1或图2所示实施例的基础上，如图3所示，在一实施例中，移动终端10的接地点可以为移动终端10上的PCB板41的接地点，第二段金属边框27通过移动终端10的耳机51的金属外壳(图中未视)电连接到PCB板41的接地点。在一实施例中，耳机51位于第二天线21区域的上方。
在一实施例中，通过将耳机51设计成金属外壳并通过PCB板41进行接地处理，可以避免耳机51内部的固有谐振高次模对第一天线11和第二天线21产生不必要的干扰，避免第一天线11和第二天线21产生不必要的天线频偏，从而提高天线性能。
在一实施例中，第二段金属边框27上可以设置有第二接触点32和第三接触点33，第二接触点32和第三接触点33均与耳机51的金属外壳电连接。通过在第二段金属边框27上设置第二接触点32可以减弱耳机51的自谐振对第一天线11和第二天线21的干扰，通过在第二段金属边框27上设置第三接触点33可以进一步增强第一天线11和第二天线21之间的隔离度，并且避免移动终端10在插入耳机51之后第一天线11和第二天线21发生频偏现象。
本实施例中，通过第二接触点32和第三接触点33均与耳机51的金属外壳电连接，耳机51通过将金属外壳进行接地处理，减弱了耳机51的自谐振对第一天线11和第二天线21的干扰，增强了wifi天线和分集天线的隔离度。
为了更清楚地说明上述本公开实施例的有益技术效果，下面结合图4A-图4C对本公开实施例的有益技术效果进行详细说明。
图4A是根据一示例性实施例示出的第一天线的测试结果的示意图，如图4A所示，横轴表示频率，纵轴表示第二天线21对第一天线11引起的串扰，单位为分贝(dB)。在第一天线11为分集天线时，在符号“Δ”标号为1处，横轴对应的频率为2.4GHZ，纵轴对应的值为-16.205dB；符号“Δ”标号为2处，横轴对应的频率为2.5GHZ，纵轴对应的值为-9.3160dB；符号“Δ”标号为3处，横轴对应的频率为5.15GHZ，纵轴对应的值为-10.371dB；符号“Δ”标号为4处，横轴对应的频率为5.8GHZ，纵轴对应的值为-25.938dB。在分集天线的第一谐振频率(2.4GHz左右)点(对应在标号1和标号2之间)分集天线的损耗达到最小，该损耗值小于-16dB，在分集天线的第二谐振频率(5.8GHz左右)点(对应在标号4附近)，分集天线同样能够达到较小损耗，该损耗值小于标号4处对应的-25.938dB，由此可以获知，本公开可以大大降低wifi天线对分集天线的串扰，进而使分集天线能够通过第一回路向外发射更大的辐射能量。
图4B是根据一示例性实施例示出的第二天线的测试结果的示意图，如图4B所示，横轴表示频率，纵轴表示第一天线11对第二天线21引起的串扰，单位为分贝(dB)。在 第二天线21为wifi天线时，在符号“Δ”标号为5处，横轴对应的频率为770MHZ，纵轴对应的值为-4.7798dB；符号“Δ”标号为6处，横轴对应的频率为960MHZ，纵轴对应的值为-3.6482dB，符号“Δ”标号为7处，横轴对应的频率为1.7082GHZ，纵轴对应的值为-25.202dB；符号“Δ”标号为8处，横轴对应的频率为2.17GHZ，纵轴对应的值为-15.382dB；符号“Δ”标号为9处，横轴对应的频率为2.69GHZ，纵轴对应的值为-8.2518dB。
wifi天线的第三谐振频率(1.7082GHz左右)点(对应在标号7位置处)wifi天线达到最小的损耗，损耗值达到了-25dB，在wifi天线的第四谐振频率(小于标号8对应的2.17GHz)点(对应在标号8之前)，wifi天线同样能够达到较小的损耗，由此可以获知，本公开可以大大降低分集天线对wifi天线的串扰，进而使wifi天线能够通过第二回路和第三回路向外发射更大的辐射能量。
图4C是根据一示例性实施例示出的第一天线与第二天线之间的隔离度的测试结果示意图，如图4C所示，横轴表示频率，纵轴表示第一天线11与第二天线21之间的隔离度，单位为分贝(dB)。在符号“Δ”标号为10处，横轴对应的频率为820MHZ，纵轴对应的值为-42.355dB，符号“Δ”标号为11处，横轴对应的频率为960MHZ，纵轴对应的值为-34.734dB，符号“Δ”标号为12处，横轴对应的频率为1.71GHZ，纵轴对应的值为-28.973dB，符号“Δ”标号为13处，横轴对应的频率为2.17GHZ，纵轴对应的值为-19.948dB，在符号“Δ”标号为14处，横轴对应的频率为2.3GHZ，纵轴对应的值为-17.633dB，符号“Δ”标号为15处，横轴对应的频率为2.4GHZ，纵轴对应的值为-17.447dB，符号“Δ”标号为17处，横轴对应的频率为2.49GHZ，纵轴对应的值为-18.125dB，符号“Δ”标号为17处，横轴对应的频率为2.69GHZ，纵轴对应的值为-25.398dB。
通过上述数据可知，在700-2.69GHz频段内，分集天线和wifi天线之间的隔离度都在-15dB以下，由此可知，本公开实施能够大大增强第一天线和第二天线之间的隔离度。
图5是根据一示例性实施例示出的一种移动终端的框图。例如，移动终端500可以是移动电话，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图5，移动终端500可以包括以下一个或多个组件：处理组件502，存储器504，电源组件506，多媒体组件508，音频组件510，输入/输出(I/O)的接口512，传感器组件514，以及通信组件516。
处理组件502通常控制移动终端500的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理元件502可以包括一个或多个处理器520来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件502可以包括一个或多个模块，便于处理组件502和其他组件之间的交互。例如，处理部件502可以包括多媒体模块，以方便多媒体组件508和处理组件502之间的交互。
存储器504被配置为存储各种类型的数据以支持在设备500的操作。这些数据的示例包括用于在移动终端500上操作的任何应用程序或方法的指令，联系人数据，电话簿数据， 消息，图片，视频等。存储器504可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件506为移动终端500的各种组件提供电力。电力组件506可以包括电源管理系统，一个或多个电源，及其他与为移动终端500生成、管理和分配电力相关联的组件。
多媒体组件508包括在所述移动终端500和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件508包括一个前置摄像头和/或后置摄像头。当设备500处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件510被配置为输出和/或输入音频信号。例如，音频组件510包括一个麦克风(MIC)，当移动终端500处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器504或经由通信组件516发送。在一些实施例中，音频组件510还包括一个扬声器，用于输出音频信号。
I/O接口512为处理组件502和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件514包括一个或多个传感器，用于为移动终端500提供各个方面的状态评估。例如，传感器组件514可以检测到设备500的打开/关闭状态，组件的相对定位，例如所述组件为移动终端500的显示器和小键盘，传感器组件514还可以检测移动终端500或移动终端500一个组件的位置改变，用户与移动终端500接触的存在或不存在，移动终端500方位或加速/减速和移动终端500的温度变化。传感器组件514可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件514还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件514还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件516被配置为便于移动终端500和其他设备之间有线或无线方式的通信。移动终端500可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信部件516经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信部件516还包括近场通信(NFC)模块， 以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，移动终端500可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (8)

  1. 一种天线模块，应用在移动终端上，其特征在于，所述天线模块包括：第一天线和第二天线；
    所述第一天线的第一接地点通过第一连接点电连接到所述移动终端的第一段金属边框上，所述第一天线的第一馈点通过第二连接点电连接到所述第一段金属边框上；
    所述第二天线通过第三连接点电连接到所述移动终端的第二段金属边框上，所述第二段金属边框与所述第一段金属边框之间开设有缝隙，所述第二段金属边框通过第一接触点电连接到所述移动终端的接地点上。
  2. 根据权利要求1所述的天线模块，其特征在于，所述第一接触点通过所述移动终端的耳机的金属外壳电连接到所述移动终端的接地点。
  3. 根据权利要求2所述的天线模块，其特征在于，所述第一接触点与所述金属外壳之间连接有放电电容。
  4. 根据权利要求2所述的天线模块，其特征在于，所述第二段金属边框还通过第二接触点与所述金属外壳电连接，所述第二接触点设置在所述耳机的一个外侧。
  5. 根据权利要求2所述的天线模块，其特征在于，所述第二段金属边框还通过第三接触点与所述金属外壳电连接，所述第三接触点设置在所述耳机的另一个外侧。
  6. 根据权利要求2所述的天线模块，其特征在于，所述移动终端的接地点为所述移动终端上的PCB板的接地点。
  7. 根据权利要求1所述的天线模块，其特征在于，所述第一天线为分集天线，所述第二天线为wifi天线。
  8. 一种移动终端，其特征在于，所述移动终端包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述移动终端还包括天线模块，所述天线模块被配置为：
    第一天线和第二天线；
    所述第一天线的第一接地点通过第一连接点电连接到所述移动终端的第一段金属边框上，所述第一天线的第一馈点通过第二连接点电连接到所述第一段金属边框上；
    所述第二天线通过第三连接点电连接到所述移动终端的第二段金属边框上，所述第二段金属边框与所述第一段金属边框之间开设有缝隙，所述第二段金属边框电连接到所述移动终端的接地点上。
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