WO2021213228A1 - 天线装置及移动终端 - Google Patents

天线装置及移动终端 Download PDF

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Publication number
WO2021213228A1
WO2021213228A1 PCT/CN2021/087216 CN2021087216W WO2021213228A1 WO 2021213228 A1 WO2021213228 A1 WO 2021213228A1 CN 2021087216 W CN2021087216 W CN 2021087216W WO 2021213228 A1 WO2021213228 A1 WO 2021213228A1
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WO
WIPO (PCT)
Prior art keywords
unit
signal
antenna
decoupling
capacitance change
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Application number
PCT/CN2021/087216
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English (en)
French (fr)
Inventor
李杰山
周昌文
Original Assignee
深圳市万普拉斯科技有限公司
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Publication of WO2021213228A1 publication Critical patent/WO2021213228A1/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
    • 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
    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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
    • 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

Definitions

  • the present invention relates to the field of wireless communication technology, and in particular to an antenna device and a mobile terminal.
  • Mobile terminals refer to computer devices that can be used on the move, and generally include smart phones and tablet computers. With the advancement of science and technology, mobile terminals are gradually developing in the direction of miniaturization and high integration.
  • a mobile terminal In the traditional technology, a mobile terminal generally has an antenna device for acquiring and transmitting radio frequency signals, and a capacitive sensor for sensing the proximity of a human body.
  • An antenna device including: a first antenna unit and a second antenna unit, used to obtain or transmit radio frequency signals; the antenna device further includes: a decoupling unit, provided in the first antenna unit and the second antenna Between the units, it is used to generate a decoupling signal to decouple the first antenna unit and the second antenna unit, and the decoupling unit is also used to obtain an induction capacitance change signal; the first isolation circuit is connected to the The decoupling unit is connected to isolate the decoupling signal and obtain and output the sensing capacitance change signal.
  • a mobile terminal includes the antenna device as described in any one of the above embodiments; the mobile terminal further includes: a controller connected to the first isolation circuit to obtain the induced capacitance change signal.
  • the above-mentioned antenna device includes a first antenna unit, a second antenna unit, a decoupling unit, and a first isolation circuit.
  • the decoupling unit is arranged between the first antenna unit and the second antenna unit, and can decouple the first antenna unit and the second antenna unit.
  • the decoupling unit is also connected to the first isolation circuit.
  • the decoupling unit can generate an induction capacitance change signal when the human body approaches.
  • the first isolation circuit can realize the isolation of the decoupling signal and the transmission of the induction capacitance change signal. In this way, through the antenna device, the acquisition and transmission of radio frequency signals can be realized, and at the same time, the transmission of inductive capacitance change signals can be realized to sense the proximity of the human body, so that the integration level of the mobile terminal can be improved.
  • FIG. 1 is a schematic diagram of the structure of an antenna device in an embodiment of the application
  • FIG. 2 is a schematic diagram of the structure of a decoupling unit in an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of an antenna device in another embodiment of the application.
  • FIG. 4 is a schematic structural diagram of an antenna device in another embodiment of the application.
  • FIG. 5 is a schematic circuit diagram of a first isolation circuit in an embodiment of the application.
  • FIG. 6 is a schematic circuit diagram of a first isolation circuit in another embodiment of the application.
  • FIG. 7 is a schematic structural diagram of an antenna device in another embodiment of the application.
  • FIG. 8 is a schematic diagram of a part of the structure of the first antenna unit in an embodiment of the application.
  • the first antenna unit
  • the first radiation arm
  • the second antenna unit 120.
  • the first isolation circuit
  • connection and “connection” mentioned in this application include direct and indirect connection unless otherwise specified.
  • the first feature “on” or “under” the second feature may be in direct contact with the first and second features, or the first and second features may be indirectly through an intermediary. touch.
  • the "above”, “above” and “above” of the first feature on the second feature may mean that the first feature is directly above or diagonally above the second feature, or it simply means that the level of the first feature is higher than that of the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature may mean that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • the present application provides an antenna device and a mobile terminal using the antenna device.
  • the antenna device can not only realize the acquisition and transmission of radio frequency signals, but also realize the transmission of induced capacitance change signals to sense the proximity of the human body, thereby improving the integration level of the mobile terminal.
  • the present application provides an antenna device 10 including a first antenna unit 110, a second antenna unit 120, a decoupling unit 130 and a first isolation circuit 140.
  • the first antenna unit 110 and the second antenna unit 120 are two antenna units independently arranged adjacent to each other, which can be used to acquire or transmit radio frequency signals.
  • the antenna unit can be composed of a radiating arm, a feeder line and a signal source.
  • the signal source can transmit a radio frequency signal to the radiating arm through the feeder. After the radiating arm obtains the radio frequency signal, the radio frequency signal can be converted into electromagnetic waves and emitted.
  • the decoupling unit 130 is provided between the first antenna unit 110 and the second antenna unit 120 to realize the decoupling of the first antenna unit 110 and the second antenna unit 120. Specifically, when the antenna device 10 is working, the first antenna unit 110 and the second antenna unit 120 can acquire and transmit radio frequency signals.
  • a decoupling unit 130 needs to be provided between the first antenna unit 110 and the second antenna unit 120.
  • the decoupling unit 130 can decouple the first antenna unit 110 and the second antenna unit 120 to avoid a coupling reaction when the first antenna unit 110 and the second antenna unit 120 work.
  • the decoupling signal is also a kind of radio frequency signal.
  • the decoupling unit 130 is also used to obtain the sensing capacitance change signal.
  • the decoupling unit 130 may be made of a conductive dielectric such as copper or silver.
  • the decoupling unit 130 made of conductive dielectric can also be used as a plate of the capacitor.
  • the conductive human body can also be used as a plate of the capacitor. Therefore, when the human body approaches the decoupling unit 130, it is equivalent to the proximity of two electrode plates, which will cause the capacitance signal of the decoupling unit 130 to change. At this time, the decoupling unit 130 generates a capacitance change signal.
  • the first isolation circuit 140 is connected to the decoupling unit 130 for isolating the decoupling signal, and obtaining and outputting the sensing capacitance change signal. Specifically, as known from the above description, during the operation of the first isolation circuit 140, a decoupling signal for decoupling the first antenna unit 110 and the second antenna unit 120 and an induced capacitance change signal are generated. Generally speaking, the first antenna unit 110 and the second antenna unit 120 are used to acquire or transmit high-frequency signals. Therefore, the decoupling signal used to decouple the first antenna unit 110 and the second antenna unit 120 is also high. Frequency signal, and the inductive capacitance change signal is a low-frequency signal.
  • the first isolation circuit 140 connected to the decoupling unit 130 is used to isolate the decoupling signal, so that only the sensing capacitance change signal is passed, and then only the sensing capacitance change signal is output.
  • the output terminal of the first isolation circuit 140 that is, the OUT terminal, is used to output an inductive capacitance change signal.
  • the antenna device 10 of the present application the transmission and acquisition of radio frequency signals can be realized, and at the same time, the induction of the human body can be realized, so that the integration degree of the mobile terminal can be improved.
  • a high-frequency signal refers to an electromagnetic wave signal with a frequency between 300KHz and 300GHz.
  • the extension direction of the decoupling unit 130 includes a first direction, a second direction, and a third direction. Wherein, the first direction, the second direction and the third direction are perpendicular to each other.
  • the first direction, the second direction, and the third direction are perpendicular to each other refer to: the first direction is perpendicular to the second direction, the first direction is perpendicular to the third direction, and the second direction is perpendicular to the third direction.
  • the first direction, the second direction, and the third direction refer to the three-dimensional directions of the three-dimensional space.
  • the extension direction of the decoupling unit 130 includes a first direction, a second direction and a third direction, that is, the decoupling unit 130 is three-dimensional.
  • the decoupling unit 130 may be as shown in FIG. 2.
  • the x direction may be the first direction
  • the y direction may be the second direction
  • the z direction may be the third direction. It can be seen from the figure that the first direction, the second direction and the third direction are perpendicular to each other.
  • the decoupling unit 130 extends in three directions, that is, has a three-dimensional shape.
  • the decoupling unit 130 may have a cubic shape, a triangular pyramid shape, or a cylindrical shape.
  • the decoupling unit 130 has a three-dimensional shape.
  • the decoupling unit 130 can obtain the sensing capacitance change signal. In this way, the decoupling unit 130 can realize human body sensing in multiple directions, thereby improving the human body sensing performance of the antenna device 10 of the present application.
  • the decoupling unit of the antenna device 10 of the present application includes a parasitic unit.
  • the parasitic element refers to a conductive radiating element that is placed between the antenna elements and is not directly or indirectly fed by a signal source, and is used to improve the antenna resonance frequency band.
  • the decoupling unit may be a parasitic unit provided between the first antenna unit 110 and the second antenna unit 120, so as to realize the decoupling of the first antenna unit 110 and the second antenna unit 120 through the parasitic unit. , And used to obtain the sensing capacitance change signal.
  • the antenna device 10 of the present application may further include a capacitor C1.
  • the capacitor C1 is connected between the parasitic unit and the ground connection. That is, one plate of the capacitor C1 is connected to the parasitic unit as a decoupling unit, and the other plate of the capacitor C1 is connected to the ground GND.
  • the parasitic unit is connected to the ground line GND through the capacitor C1, so that the parasitic unit can affect the first antenna unit 110 and the second antenna unit 110.
  • the two antenna units 120 are decoupled.
  • the parasitic unit is used to obtain the sensing capacitance change signal, a low-frequency sensing capacitance change signal is generated in the parasitic unit.
  • the parasitic unit is disconnected from the ground line GND through the capacitor C1, so that the sensing capacitance change signal can be output to the first isolation Circuit 140.
  • the decoupling unit of the antenna device 10 of the present application includes an open resonant ring.
  • the split resonant ring is a magnetic metamaterial, which is equivalent to a resonant circuit with two capacitors.
  • the split resonant ring may be used as a decoupling unit to decouple the first antenna unit 110 and the second antenna unit 120.
  • the material of the split resonant ring is generally metal. Therefore, the split resonant ring can also be used as a plate of the capacitor to obtain the sensing capacitance change signal.
  • the first isolation circuit 140 of the antenna device 10 of the present application may include an inductor L1 and a capacitor C2.
  • the input terminal of the first isolation circuit 140 is connected to the decoupling unit 130 for isolating the decoupling signal and acquiring the sensing capacitance change signal.
  • the first isolation circuit 140 can isolate the decoupling signal according to the decoupling signal being a high frequency signal and the inductive capacitance conversion signal being a low frequency signal.
  • the output terminal of the first isolation circuit 140 that is, the OUT terminal, is used to output only the sensing capacitance change signal.
  • the first isolation circuit 140 of the antenna device 10 of the present application may include an inductor L1 and a capacitor C2.
  • one end of the inductor L1 is connected to the decoupling unit 130 and serves as the input end of the first isolation circuit 140.
  • the other end of the inductor L1 is used as the output end of the first isolation circuit 140, that is, the OUT end, for outputting an inductive capacitance change signal.
  • One pole of the capacitor C2 is connected to one end of the inductor L1, that is, one pole of the capacitor C2 is connected between one end of the inductor L1 and the decoupling unit 130.
  • the other plate of the capacitor C2 is connected to the ground GND.
  • the first isolation circuit 140 of the antenna device 10 of the present application may include an inductor L1 and a capacitor C2.
  • one end of the inductor L1 is connected to the decoupling unit 130 and serves as the input end of the first isolation circuit 140.
  • the other end of the inductor L1 is used as the output end of the first isolation circuit 140, that is, the OUT end, for outputting an inductive capacitance change signal.
  • One plate of the capacitor C2 is connected to the other end of the inductor L1, that is, one plate of the capacitor C2 is connected to the output terminal of the first isolation circuit 140, that is, the OUT terminal.
  • the other plate of the capacitor C2 is connected to the ground GND.
  • the first antenna unit 110 includes a first radiating arm 112, a first feeder 114 and a first signal source 116.
  • the first radiating arm 112 is used for acquiring or transmitting radio frequency signals, which will not be repeated here.
  • the first radiating arm 112 is also used to obtain the induced capacitance change signal.
  • the first radiating arm 112 for acquiring or transmitting radio frequency signals is also made of conductive dielectric such as copper or silver.
  • the first radiating arm 112 made of conductive dielectric can be used as a polar plate of the capacitor; and the conductive human body can also be used as a polar plate of the capacitor. Therefore, when the human body approaches the first radiating arm 112, it is equivalent to the proximity of the two electrode plates, which will cause the capacitance signal of the first radiating arm 112 to change.
  • the first radiating arm 112 generates a capacitance change signal.
  • the capacitance change signal caused by the proximity of the human body as the inductive capacitance change signal. Therefore, in this embodiment, the first radiating arm 112 can be used to obtain the inductive capacitance change signal.
  • the first feed line 114 is used to feed the first radiating arm 112 so that the first radiating arm 112 can acquire or transmit radio frequency signals. Therefore, one end of the first feeder line 114 can be connected to the first radiating arm 112, and the other end of the first feeder line 114 can be connected to the first signal source 116. In this embodiment, the first feeder 114 can also be used to obtain the inductive capacitance change signal, and the principle will not be described in detail.
  • the first signal source 116 is connected to the other end of the first feed line 114 to output a radio frequency signal to the first radiating arm 112. That is, when the first signal source 116 is working, it can output a radio frequency signal, and the radio frequency signal is transmitted to the first radiating arm 112 through the first feeder 114. After the first radiating arm 112 obtains the radio frequency signal, it converts the radio frequency signal into an electromagnetic wave and emits it.
  • the antenna device 10 further includes a second isolation circuit 150.
  • the second isolation circuit 150 is connected to the first feeder 114 and is used to isolate radio frequency signals, and obtain and output inductive capacitance change signals.
  • the first feeder 114 and the first radiating arm 112 will generate radio frequency signals and induced capacitance change signals.
  • the radio frequency signal is a high frequency signal
  • the induced capacitance change signal is a low frequency signal.
  • one end of the second isolation circuit 150 can be used as an input end of the second isolation circuit 150, connected to the first feeder 114, and used to obtain an inductive capacitance change signal.
  • the other end of the second isolation circuit 150 can be used as the output end of the second isolation circuit 150, that is, the OUT end, for outputting an inductive capacitance change signal.
  • the antenna device 10 of the present application can also achieve human body sensing through the first radiating arm 112 and the first feeder 114 of the first antenna unit 110, thereby improving the integration level and human body sensing performance of the mobile terminal.
  • the first radiating arm 112 extends in the first direction and the second direction
  • the first feeding line 114 extends in the third direction.
  • the first direction, the second direction and the third direction are perpendicular to each other.
  • the x direction may be the first direction
  • the y direction may be the second direction
  • the z direction may be the third direction.
  • the first direction, the second direction, and the third direction also refer to the three-dimensional directions of the three-dimensional space.
  • the first radiating arm 112 extends along the first direction and the second direction, which means that the first radiating arm 112 is planar.
  • the first radiating arm 112 may be a metal foil.
  • the first feeding line 114 extends along the third direction, which means that the first feeding line 114 may be a metal wire perpendicular to the first radiating arm 112.
  • the first radiating arm 112 extends in the first direction and the second direction, and the first feeder 114 extends in the third direction.
  • the first antenna unit 110 Both can obtain the sensing capacitance change signal. In this way, through the first radiating arm 112 and the first feeder 114, human body sensing in multiple directions can be realized, thereby improving the human body sensing performance of the antenna device 10 of the present application.
  • the second antenna unit 120 of the antenna device 10 of the present application includes a second radiating arm 122, a second feeder 124 and a second signal source 126.
  • the second radiating arm 122 is used to acquire or transmit radio frequency signals, which will not be repeated here.
  • the second radiating arm 122 is also used to obtain the induced capacitance change signal.
  • the second radiating arm 122 for acquiring or transmitting radio frequency signals is also made of conductive dielectric such as copper or silver.
  • the second radiating arm 122 made of conductive dielectric can be used as a polar plate of the capacitor; and the conductive human body can also be used as a polar plate of the capacitor. Therefore, when the human body approaches the second radiating arm 122, it is equivalent to the proximity of the two electrode plates, which will cause the capacitance signal of the second radiating arm 122 to change.
  • the second radiating arm 122 generates a capacitance change signal.
  • the capacitance change signal caused by the proximity of the human body as the inductive capacitance change signal. Therefore, in this embodiment, the second radiating arm 122 can be used to obtain the induced capacitance change signal.
  • the second feed line 124 is used to feed the second radiating arm 122 so that the second radiating arm 122 can acquire or transmit radio frequency signals. Therefore, one end of the second feeder line 124 can be connected to the second radiating arm 122, and the other end of the second feeder line 124 can be connected to the second signal source 126. In this embodiment, the second feeder line 124 can also be used to obtain an inductive capacitance change signal, and its principle will not be repeated.
  • the second signal source 126 is connected to the other end of the second feeder 124 to output a radio frequency signal to the second radiating arm 122. That is, when the second signal source 126 is working, it can output a radio frequency signal, and the radio frequency signal is transmitted to the second radiating arm 122 through the second feeder 124. After acquiring the radio frequency signal, the second radiating arm 122 converts the radio frequency signal into an electromagnetic wave and emits it.
  • the antenna device 10 further includes a third isolation circuit 160.
  • the third isolation circuit 160 is connected to the second feeder 124 and is used to isolate radio frequency signals, and obtain and output the inductive capacitance change signal.
  • the second feeder 124 and the second radiating arm 122 will generate radio frequency signals and induced capacitance change signals.
  • the radio frequency signal is a high frequency signal
  • the induced capacitance change signal is a low frequency signal.
  • one end of the third isolation circuit 160 can be used as the input end of the third isolation circuit 160, connected to the second feeder 124, and used to obtain an inductive capacitance change signal.
  • the other end of the third isolation circuit 160 can be used as the output end of the third isolation circuit 160, that is, the OUT end, for outputting the sensing capacitance change signal.
  • the antenna device 10 of the present application can also achieve human body sensing through the second radiating arm 122 and the second feeder 124 of the second antenna unit 120, thereby improving the integration level and human body sensing performance of the mobile terminal.
  • the second radiating arm 122 extends in the first direction and the second direction
  • the second feed line 124 extends in the third direction.
  • the first direction, the second direction and the third direction are perpendicular to each other.
  • the first direction, the second direction, and the third direction also refer to the three-dimensional directions of the three-dimensional space.
  • the second radiating arm 122 extends along the first direction and the second direction, which means that the second radiating arm 122 is planar.
  • the second radiating arm 122 may be a metal foil.
  • the second feeding line 124 extends along the third direction, which means that the second feeding line 124 may be a metal wire perpendicular to the second radiating arm 122.
  • the second radiating arm 122 extends in the first direction and the second direction, and the second feed line 124 extends in the third direction.
  • the second antenna unit 120 Both can obtain the sensing capacitance change signal. In this way, through the second radiating arm 122 and the second feeder 124, human body sensing in multiple directions can be realized, thereby improving the human body sensing performance of the antenna device 10 of the present application.
  • the antenna device 10 of the present application can transmit or obtain radio frequency signals through the first antenna unit 110 and the second antenna unit 120. At the same time, it can also realize human body induction through the first antenna unit 110, the second antenna unit 120, and the decoupling unit 130. Therefore, the integration degree of the mobile terminal using the antenna device 10 can be improved.
  • the present application also provides a mobile terminal, which includes the antenna device 10 and the controller as in any one of the above-mentioned embodiments.
  • the antenna device 10 includes a first antenna unit 110 and a second antenna unit 120 for acquiring or transmitting radio frequency signals; the antenna device 10 further includes:
  • the decoupling unit 130 is arranged between the first antenna unit 110 and the second antenna unit 120, and is used to generate a decoupling signal to decouple the first antenna unit 110 and the second antenna unit 120.
  • the decoupling unit 130 is also used for Obtain the sensing capacitance change signal;
  • the first isolation circuit 140 is connected to the decoupling unit 130 to isolate the decoupling signal, and the first isolation circuit 140 is also used to obtain and output the sensing capacitance change signal.
  • the controller may be connected to the output terminal of the first isolation circuit 140, that is, the OUT terminal, for obtaining the sensing capacitance change signal output by the first isolation circuit 140.

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Abstract

本发明涉及一种天线装置及移动终端。该天线装置包括第一天线单元、第二天线单元、去耦单元及第一隔离电路。该天线装置工作时，第一天线单元和第二天线单元可以进行射频信号的获取与发射。去耦单元设于第一天线单元及第二天线单元之间，可以对第一天线单元和第二天线单元进行解耦。同时，去耦单元还与第一隔离电路连接，去耦单元可以获取感应电容变化信号，第一隔离电路可以实现解耦信号的隔离和感应电容变化信号的传输。

Description

天线装置及移动终端
交叉引用
本发明要求在2020年04月24日提交中国专利局、申请号为202010331335.7、发明名称为“天线装置及移动终端”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本发明涉及无线通信技术领域，特别是涉及天线装置及移动终端。
背景技术
移动终端是指可以在移动中使用的计算机设备，一般包括智能手机以及平板电脑等。随着科学技术的进步，移动终端逐渐朝着小型化和高集成度的方向发展。
传统技术中，移动终端一般具有用于获取和发射射频信号的天线装置，以及用于感应人体靠近的电容感应器。
申请人在实现传统技术的过程中发现：传统技术中移动终端的集成度较低。
发明内容
基于此，有必要针对传统技术中移动终端的集成度较低的问题，提供一种天线装置及移动终端。
一种天线装置，包括：第一天线单元和第二天线单元，用于获取或发射射频信号；所述天线装置还包括：去耦单元，设于所述第一天线单元和所述第二天线单元之间，用于产生解耦信号以对所述第一天线单元和所述第二天线单元解耦，所述去耦单元还用于获取感应电容变化信号；第一隔离电路，与所述去耦单元连接，用于隔离所述解耦信号以及获取所述感应电容变化信 号并输出。
一种移动终端，包括如上述任意一个实施例中所述的天线装置；所述移动终端还包括：控制器，与所述第一隔离电路连接，以获取所述感应电容变化信号。
上述天线装置，包括第一天线单元、第二天线单元、去耦单元及第一隔离电路。该天线装置工作时，第一天线单元和第二天线单元可以进行射频信号的获取与发射。去耦单元设于第一天线单元及第二天线单元之间，可以对第一天线单元和第二天线单元进行解耦。同时，去耦单元还与第一隔离电路连接，去耦单元可以在人体靠近时产生感应电容变化信号，第一隔离电路可以实现解耦信号的隔离和感应电容变化信号的传输。以此，通过该天线装置，即可实现射频信号的获取与发射，同时还可以实现感应电容变化信号的传输，以感应人体的靠近，从而可以提升移动终端的集成度。
附图说明
为了更清楚地说明本申请实施例或传统技术中的技术方案，下面将对实施例或传统技术描述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申请的一些实施例，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，还可以根据这些附图获得其他的附图。
图1为本申请一个实施例中天线装置的结构示意图；
图2为本申请一个实施例中去耦单元的结构示意图；
图3为本申请另一个实施例中天线装置的结构示意图；
图4为本申请又一个实施例中天线装置的结构示意图；
图5为本申请一个实施例中第一隔离电路的电路示意图；
图6为本申请另一个实施例中第一隔离电路的电路示意图；
图7为本申请又一个实施例中天线装置的结构示意图；
图8为本申请一个实施例中第一天线单元的部分结构示意图。
其中，各附图标号所代表的含义分别为：
10、天线装置；
110、第一天线单元；
112、第一辐射臂；
114、第一馈电线；
116、第一信号源；
120、第二天线单元；
122、第二辐射臂；
124、第二馈电线；
126、第二信号源；
130、去耦单元；
140、第一隔离电路；
150、第二隔离电路；
160、第三隔离电路。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
本文中为部件所编序号本身，例如“第一”、“第二”等，仅用于区分所描述的对象，不具有任何顺序或技术含义。而本申请所说“连接”、“联接”，如无特别说明，均包括直接和间接连接。在本申请的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”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申请和简化描述，而不是指示或暗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申请的限制。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
本申请提供一种天线装置和使用该天线装置的移动终端。该天线装置既可以实现射频信号的获取与发射，同时还可以实现感应电容变化信号的传输，以感应人体的靠近，从而可以提升移动终端的集成度。
在一个实施例中，如图1所示，本申请提供一种天线装置10，包括第一天线单元110、第二天线单元120、去耦单元130和第一隔离电路140。
具体的，第一天线单元110和第二天线单元120是两个彼此独立相邻设置的天线单元，其可以用于射频信号的获取或发射。一般来说，天线单元可以由辐射臂、馈电线和信号源组成。其中，信号源可以通过馈电线向辐射臂传输射频信号，辐射臂获取射频信号后，可以将射频信号转换为电磁波并发射出去。去耦单元130设于第一天线单元110和第二天线单元120之间，以实现对第一天线单元110和第二天线单元120的解耦。具体来说，当天线装置10工作时，第一天线单元110和第二天线单元120可以进行射频信号的获取与发射。此时，由于相邻设置的第一天线单元110和第二天线单元120内均通入高频的射频信号，第一天线单元110和第二天线单元120之间会产生耦合反应。这样的耦合反应会影响第一天线单元110和第二天线单元120进行射频信号的获取与发射。因此，需要在第一天线单元110和第二天线单元120之间设置去耦单元130。去耦单元130可以对第一天线单元110和第二天 线单元120进行解耦，避免第一天线单元110和第二天线单元120工作时产生耦合反应。我们将去耦单元130工作，以对第一天线单元110和第二天线单元120进行解耦时产生的信号命名为解耦信号。一般的，解耦信号也是射频信号的一种。
在本实施例中，去耦单元130还用于获取感应电容变化信号。具体来说，去耦单元130可以由铜或银等导电电介质制成。由导电电介质制成的去耦单元130也可以作为电容的一个极板。而可导电的人体也可以作为电容的一个极板。因此，在人体靠近去耦单元130时，相当于两个电极板的靠近，会引起去耦单元130的电容信号的变化。此时，去耦单元130即产生了电容变化信号。我们将由人体靠近而引起的电容变化信号称为感应电容变化信号。由此，在本实施例中，去耦单元130可以获取该感应电容变化信号。
第一隔离电路140与去耦单元130连接，用于隔离解耦信号，并获取感应电容变化信号并输出。具体来说，由上述描述已知，第一隔离电路140工作过程中，会产生用于对第一天线单元110和第二天线单元120进行解耦的解耦信号，以及感应电容变化信号。一般来说，第一天线单元110和第二天线单元120用于获取或发射高频信号，因此，用于对第一天线单元110和第二天线单元120进行解耦的解耦信号也为高频信号，而感应电容变化信号为低频信号。我们可以利用解耦信号与感应电容变化信号的频率不同对解耦信号进行滤波，以仅输出感应电容变化信号。在此，与去耦单元130相连的第一隔离电路140即用于隔离解耦信号，从而仅使感应电容变化信号通过，进而仅输出感应电容变化信号。在图1所示的实施例中，第一隔离电路140的输出端，即OUT端，用于输出感应电容变化信号。
以此，通过本申请的天线装置10，即可实现射频信号的发射与获取，并同时可以实现对人体的感应，从而可以提升移动终端的集成度。
在本申请的各实施例中，高频信号是指频率处于300KHz到300GHz之间的电磁波信号。
在一个实施例中，本申请的天线装置10，其去耦单元130的延伸方向包括第一方向、第二方向和第三方向。其中，第一方向、第二方向和第三方向彼此垂直。
具体的，第一方向、第二方向和第三方向彼此垂直是指：第一方向与第二方向垂直，第一方向与第三方向垂直，且第二方向与第三方向垂直。换句话说，第一方向、第二方向和第三方向是指三维立体空间的三维方向。在本实施例中，去耦单元130的延伸方向包括第一方向、第二方向和第三方向，即指去耦单元130呈立体状。
例如，去耦单元130可以如图2所示。图2中，x方向可以为第一方向，y方向为第二方向，z方向为第三方向。从图中可以看出，第一方向、第二方向和第三方向彼此垂直。去耦单元130沿三个方向延伸，即呈立体状。
例如，在本实施例中，去耦单元130可以呈立方体形状、三棱锥形状或圆柱状。
在本实施例中，去耦单元130呈立体状，当人体从不同方向靠近去耦单元130时，去耦单元130均可以获取感应电容变化信号。以此，去耦单元130可以实现多个方向的人体感应，从而提升了本申请的天线装置10的人体感应性能。
在一个实施例中，如图3所示，本申请的天线装置10，其去耦单元包括寄生单元。
具体的，寄生单元是指放置于天线单元之间，没有直接或者间接地通过信号源馈电的，用于改善天线谐振频段的导电辐射单元。在本实施例中，去耦单元可以是设于第一天线单元110和第二天线单元120之间的寄生单元，以通过该寄生单元实现第一天线单元110和第二天线单元120的解耦，并用于获取感应电容变化信号。
进一步的，当采用寄生单元作为去耦单元时，本申请的天线装置10还可以包括电容C1。
具体的，电容C1连接于寄生单元与地线连接之间。即电容C1的一个极板与作为去耦单元的寄生单元连接，电容C1的另一个极板与地线GND连接。以此，当寄生单元用于解耦时，寄生单元内产生高频的解耦信号，此时，寄生单元通过电容C1与地线GND导通，以使寄生单元对第一天线单元110和第二天线单元120进行解耦。当寄生单元用于获取感应电容变化信号时，寄生单元内产生低频的感应电容变化信号，此时，寄生单元通过电容C1与地线GND断开，以使感应电容变化信号可以输出至第一隔离电路140。
在一个实施例中，如图4所示，本申请的天线装置10，其去耦单元包括开口谐振环。
具体的，开口谐振环是一种磁性超材料，其相当于一个带有两个电容的谐振电路。在本实施例中，可以通过开口谐振环作为去耦单元，以对第一天线单元110和第二天线单元120进行解耦。同时，开口谐振环的材料一般为金属。因此，开口谐振环也可以作为电容的一个极板，用于获取感应电容变化信号。
在一个实施例中，如图5或图6所示，本申请的天线装置10，其第一隔离电路140可以包括电感L1和电容C2。
具体的，由上述描述已知，第一隔离电路140的输入端与去耦单元130连接，用于隔离解耦信号，并获取感应电容变化信号。第一隔离电路140可以根据解耦信号为高频信号，而感应电容变换信号为低频信号，对解耦信号进行隔离。第一隔离电路140的输出端，即OUT端用于仅输出感应电容变化信号。
在一个具体的实施例中，如图5所示，本申请的天线装置10，其第一隔离电路140可以包括电感L1和电容C2。其中，电感L1的一端与去耦单元130连接，作为第一隔离电路140的输入端。电感L1的另一端作为第一隔离电路140的输出端，即OUT端，用于输出感应电容变化信号。电容C2的一个极板与电感L1的一端连接，即电容C2的一个极板连接于电感L1的一端 与去耦单元130之间。电容C2的另一个极板与地线GND连接。
在另一个具体的实施例中，如图6所示，本申请的天线装置10，其第一隔离电路140可以包括电感L1和电容C2。其中，电感L1的一端与去耦单元130连接，作为第一隔离电路140的输入端。电感L1的另一端作为第一隔离电路140的输出端，即OUT端，用于输出感应电容变化信号。电容C2的一个极板与电感L1的另一端连接，即电容C2的一个极板连接于第一隔离电路140的输出端，即OUT端。电容C2的另一个极板与地线GND连接。
在一个实施例中，如图7所示，本申请的天线装置10，其第一天线单元110包括第一辐射臂112、第一馈电线114和第一信号源116。
具体的，第一辐射臂112用于获取或发射射频信号，不再赘述。在本实施例中，第一辐射臂112还用于获取感应电容变化信号。具体来说，用于获取或发射射频信号的第一辐射臂112也是由铜或银等导电电介质制成。由导电电介质制成的第一辐射臂112可作为电容的一个极板；而可导电的人体也可以作为电容的一个极板。因此，在人体靠近第一辐射臂112时，相当于两个电极板的靠近，会引起第一辐射臂112的电容信号的变化。此时，第一辐射臂112即产生了电容变化信号。我们将由人体靠近而引起的电容变化信号称为感应电容变化信号。由此，在本实施例中，第一辐射臂112可以用于获取该感应电容变化信号。
第一馈电线114用于对第一辐射臂112馈电，以使第一辐射臂112可以获取或发射射频信号。因此，第一馈电线114的一端可以与第一辐射臂112连接，第一馈电线114的另一端可以与第一信号源116连接。在本实施例中，第一馈电线114也可以用于获取感应电容变化信号，其原理不再赘述。
第一信号源116与第一馈电线114的另一端连接，从而向第一辐射臂112输出射频信号。即第一信号源116工作时，可以输出射频信号，该射频信号通过第一馈电线114传递至第一辐射臂112。第一辐射臂112获取该射频信号后，将射频信号转换为电磁波并发射出去。
在本实施例中，天线装置10还包括第二隔离电路150。第二隔离电路150与第一馈电线114连接，用于隔离射频信号，并获取感应电容变化信号并输出。具体来说，由上述描述已知，第一天线单元110工作时，第一馈电线114和第一辐射臂112会产生射频信号及感应电容变化信号。其中，射频信号为高频信号，感应电容变化信号为低频信号。我们可以利用射频信号与感应电容变化信号的频率不同对射频信号进行滤波，以仅输出感应电容变化信号。在此，第二隔离电路150的一端可以作为第二隔离电路150的输入端，连接第一馈电线114，用于获取感应电容变化信号。第二隔离电路150的另一端可以作为第二隔离电路150的输出端，即OUT端，用于输出感应电容变化信号。
以此，本申请的天线装置10，还可以通过第一天线单元110的第一辐射臂112和第一馈电线114实现对人体的感应，从而可以提升移动终端的集成度和人体感应性能。
进一步的，如图8所示，第一辐射臂112沿第一方向和第二方向延伸，第一馈电线114沿第三方向延伸。其中，第一方向、第二方向和第三方向彼此垂直。在图8所示的实施例中，x方向可以为第一方向，y方向为第二方向，z方向为第三方向。
在本实施例中，第一方向、第二方向和第三方向也是指三维立体空间的三维方向。第一辐射臂112沿第一方向和第二方向延伸，是指第一辐射臂112呈平面状。例如，第一辐射臂112可以是金属薄片。第一馈电线114沿第三方向延伸，是指第一馈电线114可以是垂直第一辐射臂112的金属导线。在本实施例中，第一辐射臂112沿第一方向和第二方向延伸，第一馈电线114沿第三方向延伸，当人体从不同方向靠近第一天线单元110时，第一天线单元110均可以获取感应电容变化信号。以此，通过第一辐射臂112和第一馈电线114，即可实现多个方向的人体感应，从而提升了本申请的天线装置10的人体感应性能。
在一个实施例中，如图7所示，本申请的天线装置10，其第二天线单元120包括第二辐射臂122、第二馈电线124和第二信号源126。
具体的，第二辐射臂122用于获取或发射射频信号，不再赘述。在本实施例中，第二辐射臂122还用于获取感应电容变化信号。具体来说，用于获取或发射射频信号的第二辐射臂122也是由铜或银等导电电介质制成。由导电电介质制成的第二辐射臂122可作为电容的一个极板；而可导电的人体也可以作为电容的一个极板。因此，在人体靠近第二辐射臂122时，相当于两个电极板的靠近，会引起第二辐射臂122的电容信号的变化。此时，第二辐射臂122即产生了电容变化信号。我们将由人体靠近而引起的电容变化信号称为感应电容变化信号。由此，在本实施例中，第二辐射臂122可以用于获取该感应电容变化信号。
第二馈电线124用于对第二辐射臂122馈电，以使第二辐射臂122可以获取或发射射频信号。因此，第二馈电线124的一端可以与第二辐射臂122连接，第二馈电线124的另一端可以与第二信号源126连接。在本实施例中，第二馈电线124也可以用于获取感应电容变化信号，其原理不再赘述。
第二信号源126与第二馈电线124的另一端连接，从而向第二辐射臂122输出射频信号。即第二信号源126工作时，可以输出射频信号，该射频信号通过第二馈电线124传递至第二辐射臂122。第二辐射臂122获取该射频信号后，将射频信号转换为电磁波并发射出去。
在本实施例中，天线装置10还包括第三隔离电路160。第三隔离电路160与第二馈电线124连接，用于隔离射频信号，并获取感应电容变化信号并输出。具体来说，由上述描述已知，第二天线单元120工作时，第二馈电线124和第二辐射臂122会产生射频信号及感应电容变化信号。其中，射频信号为高频信号，感应电容变化信号为低频信号。我们可以利用射频信号与感应电容变化信号的频率不同对射频信号进行滤波，以仅输出感应电容变化信号。在此，第三隔离电路160的一端可以作为第三隔离电路160的输入端，连接 第二馈电线124，用于获取感应电容变化信号。第三隔离电路160的另一端可以作为第三隔离电路160的输出端，即OUT端，用于输出感应电容变化信号。
以此，本申请的天线装置10，还可以通过第二天线单元120的第二辐射臂122和第二馈电线124实现对人体的感应，从而可以提升移动终端的集成度和人体感应性能。
进一步的，第二辐射臂122沿第一方向和第二方向延伸，第二馈电线124沿第三方向延伸。其中，第一方向、第二方向和第三方向彼此垂直。
在本实施例中，第一方向、第二方向和第三方向也是指三维立体空间的三维方向。第二辐射臂122沿第一方向和第二方向延伸，是指第二辐射臂122呈平面状。例如，第二辐射臂122可以是金属薄片。第二馈电线124沿第三方向延伸，是指第二馈电线124可以是垂直第二辐射臂122的金属导线。在本实施例中，第二辐射臂122沿第一方向和第二方向延伸，第二馈电线124沿第三方向延伸，当人体从不同方向靠近第二天线单元120时，第二天线单元120均可以获取感应电容变化信号。以此，通过第二辐射臂122和第二馈电线124，即可实现多个方向的人体感应，从而提升了本申请的天线装置10的人体感应性能。
本申请的天线装置10，可以通过第一天线单元110、第二天线单元120发射或获取射频信号，同时，还可以通过第一天线单元110、第二天线单元120及去耦单元130实现人体感应，从而可以提升使用该天线装置10的移动终端的集成度。
在一个实施例中，本申请还提供一种移动终端，该移动终端包括如上述任意一个实施例中的天线装置10及控制器。
具体的，天线装置10包括用于获取或发射射频信号的第一天线单元110和第二天线单元120；天线装置10还包括：
去耦单元130，设于第一天线单元110和第二天线单元120之间，用于 产生解耦信号以对第一天线单元110和第二天线单元120解耦，去耦单元130还用于获取感应电容变化信号；
第一隔离电路140，与去耦单元130连接，以隔离解耦信号，第一隔离电路140还用于获取感应电容变化信号并输出。
控制器可以与第一隔离电路140的输出端，即OUT端连接，用于获取第一隔离电路140输出的感应电容变化信号。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种天线装置，其中，包括：
    第一天线单元(110)和第二天线单元(120)，用于获取或发射射频信号；
    去耦单元(130)，设于所述第一天线单元(110)和所述第二天线单元(120)之间，用于产生解耦信号以对所述第一天线单元(110)和所述第二天线单元(120)解耦，所述去耦单元(130)还用于获取感应电容变化信号；
    第一隔离电路(140)，与所述去耦单元(130)连接，用于隔离所述解耦信号以及获取所述感应电容变化信号并输出。
  2. 根据权利要求1所述的天线装置，其中，所述去耦单元(130)的延伸方向包括第一方向、第二方向和第三方向中的至少一个，所述第一方向、所述第二方向和所述第三方向彼此垂直。
  3. 根据权利要求2所述的天线装置，其中，所述去耦单元(130)包括寄生单元。
  4. 根据权利要求3所述的天线装置，其中，还包括：
    电容C1，所述电容C1的一个极板与所述寄生单元连接，所述电容C1的另一个极板与地线GND连接。
  5. 根据权利要求2所述的天线装置，其中，所述去耦单元(130)包括开口谐振环。
  6. 根据权利要求1至5任意一项所述的天线装置，其中，所述第一隔离电路(140)包括：
    电感L1，所述电感L1的一端与所述去耦单元(130)连接，所述电感L1的另一端用于输出所述感应电容变化信号；
    电容C2，所述电容C2的一个极板与所述去耦单元(130)连接，所述电容C2的另一个极板与地线GND连接。
  7. 根据权利要求1所述的天线装置，其中，所述第一天线单元(110)包括：
    第一辐射臂(112)，用于获取或发射射频信号，所述第一辐射臂(112)还用于获取所述感应电容变化信号；
    第一馈电线(114)，所述第一馈电线(114)的一端与所述第一辐射臂(112)连接，所述第一馈电线(114)用于获取所述感应电容变化信号；
    第一信号源(116)，与所述第一馈电线(114)的另一端连接，以通过所述第一馈电线(114)向所述第一辐射臂(112)输出射频信号；
    所述天线装置(10)还包括：
    第二隔离电路(150)，与所述第一馈电线(114)连接，以隔离所述射频信号，所述第二隔离电路(150)还用于获取所述感应电容变化信号并输出。
  8. 根据权利要求7所述的天线装置，其中，所述第一辐射臂(112)沿第一方向和第二方向延伸；
    所述第一馈电线(114)沿第三方向延伸，且所述第一方向、所述第二方向和所述第三方向彼此垂直。
  9. 根据权利要求1所述的天线装置，其中，所述第二天线单元(120)包括：
    第二辐射臂(122)，用于获取或发射射频信号，所述第二辐射臂(122)还用于获取所述感应电容变化信号；
    第二馈电线(124)，所述第二馈电线(124)的一端与所述第二辐射臂(122)连接，所述第二馈电线(124)用于获取所述感应电容变化信号；
    第二信号源(126)，与所述第二馈电线(124)的另一端连接，以通过所述第二馈电线(124)向所述第二辐射臂(122)输出射频信号；
    所述天线装置(10)还包括：
    第三隔离电路(160)，与所述第二馈电线(124)连接，以隔离所述射频信号，所述第三隔离电路(160)还用于获取所述感应电容变化信号并输出；
    所述第二辐射臂(122)沿第一方向和第二方向延伸；所述第二馈电线(124)沿第三方向延伸，且所述第一方向、所述第二方向和所述第三方向彼此垂直。
  10. 一种移动终端，其中，包括如权利要求1至9任意一项所述的天线装置(10)；
    所述移动终端还包括：
    控制器，与所述第一隔离电路(140)连接，以获取所述感应电容变化信号。
PCT/CN2021/087216 2020-04-24 2021-04-14 天线装置及移动终端 WO2021213228A1 (zh)

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