WO2020259296A1 - 射频电路及终端 - Google Patents

射频电路及终端 Download PDF

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Publication number
WO2020259296A1
WO2020259296A1 PCT/CN2020/095532 CN2020095532W WO2020259296A1 WO 2020259296 A1 WO2020259296 A1 WO 2020259296A1 CN 2020095532 W CN2020095532 W CN 2020095532W WO 2020259296 A1 WO2020259296 A1 WO 2020259296A1
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WIPO (PCT)
Prior art keywords
module
antenna
radio frequency
switch module
sub
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/CN2020/095532
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English (en)
French (fr)
Inventor
孔根升
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Publication of WO2020259296A1 publication Critical patent/WO2020259296A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Definitions

  • the present disclosure relates to the technical field of electronic products, and in particular to a radio frequency circuit and a terminal.
  • the terminal adds a sounding reference signal (Sounding reference signal, SRS) function to the hardware design.
  • SRS Sounding reference signal
  • SRS is mainly used to obtain uplink channel state information and downlink channel state information.
  • the SRS antenna switching of the 5G terminal system needs to be completed in the terminal hardware design, which increases the complexity of the terminal radio frequency front-end system.
  • the terminal supports one transmission, and this transmission can be switched on two antennas
  • 2T4R the terminal supports two transmissions, and the two transmissions can be switched on two antennas respectively
  • 1T4R The terminal supports one-way transmission, which can be switched on four antennas.
  • the 1T4R switching method is generally through a three-pole, three-throw (3P3T) switch or a four-to-four-throw (4P4T) switch to support one transmission, and this transmission can be switched on four antennas. Since the insertion loss of the 3P3T switch and the 4P4T switch is relatively large, it may affect the receiving sensitivity of the terminal, and even increase the loss of the terminal.
  • the embodiments of the present disclosure provide a radio frequency circuit and a terminal to solve the problem of large insertion loss of switches in the radio frequency circuit.
  • some embodiments of the present disclosure provide a radio frequency circuit, including:
  • At least two antennas At least two antennas
  • the first switch module is respectively connected to the transceiver module and the at least two antennas, and the transceiver module is connected to any one of the antennas through the first switch module;
  • At least one second switch module, and one said second switch module is respectively connected to one said receiving module and one said antenna.
  • some embodiments of the present disclosure also provide a terminal, including the above-mentioned radio frequency circuit.
  • the transceiver module is connected to at least two antennas through the first switch module; through the first switch module, the transceiver module can be connected to any antenna; and a second switch module
  • the group is connected to an antenna, and the second switch module controls the conduction or disconnection between the antenna corresponding to the second switch module and the receiving module to realize the transmission and/or reception of radio frequency signals, and Compared with radio frequency circuits using 3P3T (three-pole three-throw switch) and 4P4T (four-pole four-throw switch), the insertion loss and cost are reduced, and the system sensitivity is also improved.
  • FIG. 1 shows one of the schematic diagrams of the radio frequency circuit of some embodiments of the present disclosure
  • Figure 2 shows the second schematic diagram of the radio frequency circuit of some embodiments of the present disclosure
  • FIG. 3 shows the third schematic diagram of the radio frequency circuit of some embodiments of the present disclosure
  • FIG. 4 shows the fourth schematic diagram of the radio frequency circuit of some embodiments of the present disclosure.
  • FIG. 5 shows a block diagram of the hardware structure of a terminal according to some embodiments of the present disclosure.
  • some embodiments of the present disclosure provide a radio frequency circuit, including: a radio frequency transceiver 11, a transceiver module 12 connected to the radio frequency transceiver 11, at least one receiving module 13, and at least two antennas 14. , A first switch module 15 and at least one second switch module 16.
  • the first switch module 15 is respectively connected to the transceiver module 12 and the at least two antennas 14, and the transceiver module 12 is connected to any one of the antennas through the first switch module 15 14 is turned on; a second switch module 16 is connected to a receiving module 13 and an antenna 14 respectively.
  • the radio frequency circuit in this embodiment can be applied to the Time Division Duplexing (TDD) standard, such as: N41/N77/N78/N79 frequency bands under the TDD standard of 5G New Radio (NR); or Applied to Frequency Division Duplexing (FDD) system.
  • TDD Time Division Duplexing
  • NR 5G New Radio
  • FDD Frequency Division Duplexing
  • the transceiver module 12 is connected to at least two antennas through the first switch module 15 (the connection mentioned here is not that the transceiver module 12 and the at least two antennas are all connected), and the first switch module 15.
  • the transceiver module 12 can be connected to any antenna 14, and the transceiver module 12 is connected to only one antenna 14; and a second switch module 16 is connected to one antenna 14, through the second switch module 16 , To control the conduction or disconnection between the antenna 14 corresponding to the second switch module 16 and the receiving module 13 to realize the transmission and/or reception of radio frequency signals.
  • the insertion loss and cost are reduced, and the system sensitivity is also improved.
  • Figures 1 and 2 show an example of a 1T2R radio frequency circuit.
  • the radio frequency circuit includes: a radio frequency transceiver 11, a transceiver module 12 and a receiving module 13 connected to the radio frequency transceiver 11, two antennas 14, a first switch module 15, and a second switch module 16. And modem 17.
  • the first switch module 15 is connected to the transceiver module 12 and the two antennas 14 respectively, and the transceiver module 12 is connected to any one of the antennas 14 through the first switch module 15
  • the second switch module 16 is connected between the receiving module 13 and one of the antennas 14; the modem 17 is connected to the radio frequency transceiver 11.
  • the two antennas 14 are a first antenna 141 and a second antenna 142.
  • the first switch module is a single pole double throw switch; the first switch module 15 includes a first connection terminal, a second connection terminal, and a third connection terminal.
  • the first connection end is connected to the transceiver module 12; the second connection end is connected to the first antenna 141; the third connection end is connected to the second antenna 142.
  • the first switch module 15 has a first conduction state and a second conduction state. When the first switch module 15 is in the first conduction state, the first connection terminal and the second connection terminal are conducted. That is, the transceiver module 12 conducts between the first switch module 15 and the first antenna 141; when the first switch module 15 is in the second conduction state, the first connection terminal and the third connection terminal are conducted. That is, the transceiver module 12 is connected to the second antenna 142 through the first switch module 15.
  • the second switch module 16 is a single pole single throw switch, wherein one end of the single pole single throw switch is connected to the receiving module 13 and the other end is connected to the second antenna 142.
  • the second switch module 16 has an on state and an off state. When the second switch module 16 is in the on state, the receiving module 13 and the second antenna 142 are conducted; when the second switch module When 16 is in the off state, the receiving module 13 and the second antenna 142 are disconnected.
  • the modem 17 is used to demodulate the signal received by the radio frequency transceiver 11 and send the modulated signal carrying useful information to the radio frequency transceiver 11. At the same time, the control of the radio frequency transceiver 11, the transceiver module 12, the receiving module 13, the first switch module 15 and the second switch module 16 can also be realized.
  • the radio frequency transceiver 11 is used for outputting an uplink transmission (TX) signal to the transceiver module 12 and/or the receiving module 13 and receiving the downlink reception (RX) signal of the transceiver module 12 and/or the receiving module 13.
  • TX uplink transmission
  • RX downlink reception
  • the transceiver module 12 is a radio frequency transmit and receive (TX/RX) module, which is used to amplify the radio frequency signal sent by the radio frequency transceiver 11 and send it to the first antenna 141 or the second antenna 142 , And the signal received by the first antenna 141 or the second antenna 142 is primary amplified and sent to the radio frequency transceiver 11 for processing.
  • TX/RX radio frequency transmit and receive
  • the second switch module 16 is a single pole single throw switch, wherein one end of the single pole single throw switch is connected to the receiving module 13 and the other end is connected to the second antenna 142.
  • the second switch module 16 has an on state and an off state. When the second switch module 16 is in the on state, the receiving module 13 and the second antenna 142 are conducted; when the second switch module When 16 is in the off state, the receiving module 13 and the second antenna 142 are disconnected. In this way, through the second switch module 13, the receiving module 13 can be in a state of conducting with the second antenna 142 or a state of being disconnected.
  • the receiving module 13 is an independent radio frequency receiving (RX) module for primary amplifying the received signal from the second antenna 142 and then sending it to the radio frequency transceiver 11 for processing.
  • RX radio frequency receiving
  • the first switch module when the radio frequency circuit works in the transmitting mode, the first switch module is in one of the first conductive state and the second conductive state, that is, the transceiver module 12 passes through the first switch module 15 It is connected to the first antenna 141, or the transceiver module 12 is connected to the second antenna 142 through the first switch module 15, so that the transceiver module 12 can transmit through any one of the two antennas.
  • Radio frequency signal; the second switch module is in the off state, that is, the receiving module 13 is disconnected from the second antenna 142.
  • the first switch module 15 When the radio frequency circuit is operating in the receiving mode, the first switch module 15 is in the first conductive state, that is, the transceiver module 12 is conductively connected between the first switch module 15 and the first antenna 141.
  • the two switch modules 16 are in a conducting state, that is, the receiving module 13 is conducted between the second switch module 16 and the second antenna 142 to ensure the reception of the two antennas, thereby ensuring the effective transmission of radio frequency signals.
  • the single-pole double-throw (SP2T) and single-pole single-throw (SPST) switches in some embodiments of the present disclosure can be integrated into a switch chip (IC) to improve the integration and layout of the RF front-end system. Board area.
  • IC switch chip
  • the transceiver module 12 is connected to the first antenna 141 and the second antenna 142 through the first switch module 15; through the first switch module 15, the transceiver module 12 can be connected to the first antenna 141 or the second antenna 142 is turned on; and the second switch module 16 is only connected to the second antenna 142, and the second switch module 16 controls the conduction or disconnection between the receiving module 13 and the second antenna 142 to achieve radio frequency Signal transmission and/or reception, and the insertion loss of the single-pole four-throw switch at 4GHz is about 0.45dB, and the insertion loss of the single-pole single-throw switch at 4GHz is less than 0.4dB.
  • the insertion loss can be reduced. Loss and cost, thereby reducing the loss of the terminal, are of great value to the sensitivity of the system and the optimization of radio frequency transmission power consumption.
  • the radio frequency circuit includes: a radio frequency transceiver 31, a transceiver module 32 and at least one receiving module 33 connected to the radio frequency transceiver 31, at least two antennas 34, a first switch module 35, and at least one second Switch module 36 and modem 37.
  • the first switch module 35 is respectively connected to the transceiver module 32 and the at least two antennas 34, and the transceiver module 32 is connected to any one of the antennas through the first switch module 35 34 is turned on; one of the second switch modules 36 is connected to one of the receiving module 33 and one of the antenna 34; the modem 37 is connected to the radio frequency transceiver 31.
  • the at least two antennas 34 include: a first antenna 341, a second antenna 342, a third antenna 343, and a fourth antenna 344.
  • the first switch module 35 is respectively connected to the transceiver module 32, the first antenna 341, the second antenna 342, the third antenna 343, and the fourth antenna 344, and
  • the transceiver module 32 is connected to any one of the first antenna 341, the second antenna 342, the third antenna 343, and the fourth antenna 344 through the first switch module 35.
  • the first switch module 35 is a single-pole four-throw switch. Specifically, the first switch module 35 includes: a first connection end, a second connection end, a third connection end, a fourth connection end, and a fifth connection end;
  • the first antenna 341 is connected to the first connection end
  • the second antenna 342 is connected to the second connection end
  • the third antenna 343 is connected to the third connection end
  • the fourth antenna 344 is connected to the fourth connection terminal
  • the transceiver module 32 is connected to the fifth connection terminal
  • the fifth connection terminal is connected to any one of the first connection terminal, the second connection terminal, the third connection terminal, and the fourth connection terminal, so that the first switch module 35 has a first conductive state: the fifth connection terminal is connected to the first connection terminal, that is, the transceiver module 32 is connected to the first antenna 341 through the first switch module 35; the second conductive state : The fifth connection terminal is connected to the second connection terminal, that is, the transceiver module 32 is connected to the second antenna 342 through the first switch module 35; the third conductive state: the fifth connection terminal is connected to the The third connection terminal is conductive, that is, the transceiver module 32 is connected to the third antenna 343 through the first switch module 35; the fourth conductive state: the fifth connection terminal is conductive to the fourth connection terminal That is, the transceiver module 32 is connected to the fourth antenna 344 through the first switch module 35.
  • the at least one receiving module 33 includes: a first sub receiving module 331, a second sub receiving module 332, and a third sub receiving module 333;
  • the second switch module 36 includes: a first sub switch module 361, a second sub switch module 362, and a third sub switch module 363;
  • the first sub-receiving module 331 is connected to the second antenna 342 through the first sub-switch module 361;
  • the second sub-receiving module 332 is connected to the third antenna 343 through the second sub-switch module 362;
  • the third sub-receiving module 333 is connected to the fourth antenna 344 through the third sub-switch module 363.
  • the second switch module 36 is a single pole single throw switch, that is, the first sub switch module 361, the second sub switch module 362, and the third sub switch module 363 are single pole single throw switches, respectively.
  • the first sub-receiving module 331 can be in a state of being connected to the second antenna 342 or disconnected; through the second sub-switch module 362, the The second sub-receiving module 332 can be connected to the third antenna 343 or disconnected; through the third sub-switch module 363, the third sub-receiving module 333 can be connected to the fourth antenna 344.
  • the modem 37 is used to demodulate the signal received by the radio frequency transceiver 31 and send the modulated signal carrying useful information to the radio frequency transceiver 31. At the same time, it can also realize the radio frequency transceiver 31, the transceiver module 32, the first sub-receiving module 331, the second sub-receiving module 332, the third sub-receiving module 333, the first switch module 35, and the first sub switch. Control of the module 361, the second sub-switch module 362, and the third sub-switch module 363.
  • the radio frequency transceiver 31 is used to output an uplink transmit (TX) signal to at least one of the transceiver module 32, the first sub-receiving module 331, the second sub-receiving module 332, and the third sub-receiving module 333 to receive and transmit At least one of the module 32, the first sub-receiving module 331, the second sub-receiving module 332, and the third sub-receiving module 333 receives downlink reception (RX) signals.
  • TX uplink transmit
  • the transceiver module 32 is a radio frequency transmitting and receiving (TX/RX) module, which is used to amplify the radio frequency signal sent by the radio frequency transceiver 31 and send it to the first antenna 341 and the second antenna 342 , One of the third antenna 343 and the fourth antenna 344, and the signal received from one of the first antenna 341, the second antenna 342, the third antenna 343, and the fourth antenna 344 is primary amplified and sent to the radio frequency
  • the transceiver 31 processes.
  • the first sub-receiving module 331 is a radio frequency receiving (RX) module, which is used to amplify the received signal from the second antenna 342 and send it to the radio frequency transceiver 31 for processing;
  • the receiving module 332 is a radio frequency receiving (RX) module, which is used to amplify the received signal from the third antenna 343 and send it to the radio frequency transceiver 31 for processing;
  • the third sub-receiving module 333 is the radio frequency receiver The (RX) module is used for primary amplifying the received signal of the fourth antenna 344 and sending it to the radio frequency transceiver 31 for processing.
  • the first sub-switch module 361, the second sub-switch module 362, and the third sub-switch module 363 are all in the off state, that is, the first sub-switch module
  • the receiving module 331 is disconnected from the first antenna 341, the second sub receiving module 332 is disconnected from the second antenna 342, and the third sub receiving module 333 is disconnected from the third antenna 343;
  • the transceiver module 32 is connected to one of the first antenna 341, the second antenna 342, the third antenna 343, and the fourth antenna 344 through the first switch module 35, that is, the first switch module 35 is in one of the first conduction state, the second conduction state, the third conduction state, and the fourth conduction state, so that the transceiver module 32 can transmit radio frequency signals through any one of the four antennas.
  • the first sub-switch module 361, the second sub-switch module 362, and the third sub-switch module 363 are all in a closed state, that is, the first sub-receiving module 331 Through the conduction between the first sub-switch module 361 and the second antenna 342, the second sub-receiving module 332 conducts between the second sub-switch module 362 and the third antenna 343, and the third sub-receiving module 333 Through the conduction between the third sub-switch module 363 and the fourth antenna 344; and the transceiver module 32 conducts with the first antenna 341 through the first switch module 35, that is, the first switch mode
  • the group 35 is in the first conduction state to ensure the reception of the four antennas, thereby ensuring the effective transmission of radio frequency signals.
  • the single-pole four-throw switch (SP4T) and the single-pole single-throw (SPST) switch in some embodiments of the present disclosure can be integrated into a switch chip (IC) to improve the integration and layout of the RF front-end system. Board area.
  • IC switch chip
  • the transceiver module 32 is connected to the four antennas 34 through the first switch module 35; through the first switch module 35, the transceiver module 32 can be connected to any one of the four antennas 34; and one
  • the second switch module 36 is connected to a receiving module 33 and an antenna 34, and the second switch module 36 controls the connection between the antenna 34 and the receiving module 33 corresponding to the second switch module 36
  • the insertion loss of the single-pole four-throw switch at 4GHz is about 0.45dB
  • the insertion loss of the single-pole single-throw switch at 4GHz is less than 0.4dB.
  • the insertion loss will be optimized by 0.35-1.2dB, thereby reducing the loss of the terminal, which is of great value to system sensitivity and optimizing radio frequency transmission power consumption.
  • the terminal 500 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, and a user Input unit 507, interface unit 508, memory 509, processor 510, power supply 511 and other components.
  • a radio frequency unit 501 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, and a user Input unit 507, interface unit 508, memory 509, processor 510, power supply 511 and other components.
  • terminal structure shown in FIG. 5 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown in the figure, or combine certain components, or arrange different components.
  • terminals include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.
  • the radio frequency unit 501 includes: a radio frequency transceiver, a transceiver module and at least one receiving module connected to the radio frequency transceiver, at least two antennas, a first switch module, at least one second switch module, and a modem .
  • the first switch module is respectively connected with the transceiver module and the at least two antennas, and the transceiver module is connected to any one of the antennas through the first switch module;
  • the second switch module is connected to the receiving module and the antenna respectively;
  • the modem is connected to the radio frequency transceiver.
  • the transceiver module is connected to at least two antennas through a first switch module; through the first switch module, the transceiver module can be connected to any antenna; and A second switch module is connected to an antenna, and the second switch module controls the conduction or disconnection between the antenna corresponding to the second switch module and the receiving module to realize the transmission and/or radio frequency signal. Or receiving, and compared with the use of 3P3T and 4P4T radio frequency circuit, reducing the insertion loss and cost, but also beneficial to improve the system sensitivity.
  • the radio frequency unit 501 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 510; , Send the uplink data to the base station.
  • the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 501 can also communicate with the network and other devices through a wireless communication system.
  • the terminal provides users with wireless broadband Internet access through the network module 502, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 503 can convert the audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into audio signals and output them as sounds. Moreover, the audio output unit 503 may also provide audio output related to a specific function performed by the terminal 500 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 504 is used to receive audio or video signals.
  • the input unit 504 may include a graphics processing unit (GPU) 5041 and a microphone 5042.
  • the graphics processor 5041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. Data is processed.
  • the processed image frame may be displayed on the display unit 506.
  • the image frame processed by the graphics processor 5041 may be stored in the memory 509 (or other storage medium) or sent via the radio frequency unit 501 or the network module 502.
  • the microphone 5042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 501 for output in the case of a telephone call mode.
  • the terminal 500 also includes at least one sensor 505, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 5061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 5061 and/or when the terminal 500 is moved to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal posture (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 505 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared Sensors, etc., will not be repeated here.
  • the display unit 506 is used to display information input by the user or information provided to the user.
  • the display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 507 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the terminal.
  • the user input unit 507 includes a touch panel 5071 and other input devices 5072.
  • the touch panel 5071 also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 5071 or near the touch panel 5071. operating).
  • the touch panel 5071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 510, the command sent by the processor 510 is received and executed.
  • the touch panel 5071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 507 may also include other input devices 5072.
  • other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 5071 can be overlaid on the display panel 5061.
  • the touch panel 5071 detects a touch operation on or near it, it is transmitted to the processor 510 to determine the type of the touch event.
  • the type of event provides corresponding visual output on the display panel 5061.
  • the touch panel 5071 and the display panel 5061 are used as two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 5071 and the display panel 5061 can be integrated. Realize the input and output functions of the terminal, which are not limited here.
  • the interface unit 508 is an interface for connecting an external device with the terminal 500.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 508 may be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 500 or may be used to communicate between the terminal 500 and the external device. Transfer data between.
  • the memory 509 can be used to store software programs and various data.
  • the memory 509 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 509 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 510 is the control center of the terminal. It uses various interfaces and lines to connect the various parts of the entire terminal. It executes by running or executing software programs and/or modules stored in the memory 509, and calling data stored in the memory 509. Various functions of the terminal and processing data, so as to monitor the terminal as a whole.
  • the processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface and application programs, etc.
  • the adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 510.
  • the terminal 500 may also include a power source 511 (such as a battery) for supplying power to various components.
  • a power source 511 such as a battery
  • the power source 511 may be logically connected to the processor 510 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.
  • the terminal 500 includes some functional modules not shown, which will not be repeated here.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本公开公开了一种射频电路及终端，所述射频电路包括：射频收发器；与所述射频收发器连接的收发模组和至少一个接收模组；至少两个天线；第一开关模组，分别与所述收发模组和所述至少两个天线连接，且所述收发模组通过所述第一开关模组与任一所述天线导通；至少一个第二开关模组，一个所述第二开关模组分别与一个所述接收模组和一个所述天线连接。

Description

射频电路及终端
相关申请的交叉引用
本申请主张在2019年6月26日在中国提交的中国专利申请号No.201910560441.X的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及电子产品技术领域，尤其涉及一种射频电路及终端。
背景技术
5G移动通信中，终端在硬件设计上增加了一个探测参考信号(Sounding reference signal，SRS)的功能。SRS主要用于上行信道状态信息获取和下行信道状态信息获取。5G终端系统的SRS天线切换需要在终端硬件设计上完成，如此就增加了终端射频前端系统的复杂度。
SRS天线切换方式有以下三种：1T2R(终端支持一路发射，这一路发射可以在两只天线上切换)、2T4R(终端支持两路发射，这两路发射可以分别在两只天线上切换)、1T4R(终端支持一路发射，这一路发射可以在四只天线上切换)。如：1T4R切换方式一般是通过三刀三掷(3P3T)开关或四到四掷(4P4T)开关，实现支持一路发射，且这一路发射可以在四只天线上切换。由于3P3T开关及4P4T开关的插入损耗较大，可能会对终端的接收灵敏度造成影响，甚至增大终端的损耗。
发明内容
本公开实施例提供了一种射频电路及终端，以解决射频电路中开关的插入损耗大的问题。
为了解决上述技术问题，本公开是这样实现的：
第一方面，本公开的一些实施例提供了一种射频电路，包括：
射频收发器；
与所述射频收发器连接的收发模组和至少一个接收模组；
至少两个天线；
第一开关模组，分别与所述收发模组和所述至少两个天线连接，且所述收发模组通过所述第一开关模组与任一所述天线导通；
至少一个第二开关模组，一个所述第二开关模组分别与一个所述接收模组和一个所述天线连接。
第二方面，本公开的一些实施例还提供了一种终端，包括如上所述的射频电路。
这样，本公开的上述方案中，收发模组通过第一开关模组与至少两个天线连接；通过该第一开关模组，收发模组可以与任意一个天线导通；并且一个第二开关模组与一个天线连接，通过该第二开关模组控制与该第二开关模组对应连接的天线与接收模组之间的导通或者断开，实现射频信号的发送和/或接收，并且与采用3P3T(三刀三掷开关)、4P4T(四刀四掷开关)的射频电路相比，降低了插入损耗和成本，还有利于提高系统灵敏度。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例的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公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1表示本公开的一些实施例的射频电路的示意图之一；
图2表示本公开的一些实施例的射频电路的示意图之二；
图3表示本公开的一些实施例的射频电路的示意图之三；
图4表示本公开的一些实施例的射频电路的示意图之四；以及
图5表示本公开的一些实施例的终端的硬件结构框图。
具体实施方式
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。
如图1，本公开的一些实施例提供了一种射频电路，包括：射频收发器11、与所述射频收发器11连接的收发模组12和至少一个接收模组13、至少两个天线14、第一开关模组15以及至少一个第二开关模组16。
其中，所述第一开关模组15分别与所述收发模组12和所述至少两个天线14连接，且所述收发模组12通过所述第一开关模组15与任一所述天线14导通；一个所述第二开关模组16分别与一个所述接收模组13和一个所述天线14连接。
该实施例中的射频电路，可以应用于时分双工(Time Division Duplexing，TDD)制式，如：5G新空口(New Radio，NR)的TDD制式下的N41/N77/N78/N79频段；也可以应用于频分双工(Frequency Division Duplexing，FDD)制式。
上述方案中，收发模组12通过第一开关模组15与至少两个天线连接(这里所说的连接并非收发模组12与该至少两个天线全部导通)，通过该第一开关模组15，收发模组12可以与任意一个天线14导通，且收发模组12仅与一个天线14导通；并且一个第二开关模组16与一个天线14连接，通过该第二开关模组16，控制与该第二开关模组16对应连接的天线14与接收模组13之间的导通或者断开，实现射频信号的发送和/或接收，与采用3P3T和4P4T的射频电路相比，降低了插入损耗和成本，还有利于提高系统灵敏度。
如图1和图2，给出了一种1T2R的射频电路的示例。其中，该射频电路包括：射频收发器11、与所述射频收发器11连接的收发模组12和接收模组13、两个天线14、第一开关模组15、一个第二开关模组16以及调制解调器17。
其中，所述第一开关模组15分别与所述收发模组12和所述两个天线14连接，且所述收发模组12通过所述第一开关模组15与任一所述天线14导通；第二开关模组16连接于所述接收模组13和一个所述天线14之间；所述调制解调器17与射频收发器11连接。
具体的，该两个天线14为第一天线141和第二天线142。
可选的，该第一开关模组为单刀双掷开关；第一开关模组15包括第一连 接端、第二连接端和第三连接端。该第一连接端与收发模组12连接；第二连接端与第一天线141连接；第三连接端与第二天线142连接。
该第一开关模组15具有第一导通状态和第二导通状态，其中，当第一开关模组15处于第一导通状态时，第一连接端与第二连接端导通，也即收发模组12通过该第一开关模组15与第一天线141之间导通；当第一开关模组15处于第二导通状态时，第一连接端与第三连接端导通，也即收发模组12通过该第一开关模组15与第二天线142之间导通。
第二开关模组16为单刀单掷开关，其中该单刀单掷开关的一端连接接收模组13，另一端连接第二天线142。该第二开关模组16具有导通状态和关断状态，当该第二开关模组16处于导通状态时，接收模组13与第二天线142之间导通；当第二开关模组16处于关断状态时，接收模组13与第二天线142之间断开。
其中，调制解调器17用于对射频收发器11接收的信号进行解调处理，以及把调制后的携带有用信息的信号发送至射频收发器11。同时还可以实现对射频收发器11、收发模组12、接收模组13、第一开关模组15和第二开关模组16等的控制。
射频收发器11用于输出上行的发射(TX)信号至收发模组12和/或接收模组13，接收收发模组12和/或接收模组13下行的接收(RX)信号。
可选的，该收发模组12即为射频发射和接收(TX/RX)模组，用于将射频收发器11发出的射频信号进行放大处理，并发送至第一天线141或第二天线142，以及将接收到第一天线141或第二天线142的信号进行初级放大后发送至射频收发器11处理。
可选的，该第二开关模组16为单刀单掷开关，其中该单刀单掷开关的一端连接接收模组13，另一端连接第二天线142。该第二开关模组16具有导通状态和关断状态，当该第二开关模组16处于导通状态时，接收模组13与第二天线142之间导通；当第二开关模组16处于关断状态时，接收模组13与第二天线142之间断开。这样，通过该第二开关模组13，该接收模组13可以处于与第二天线142导通的状态，或者断开的状态。
可选的，该接收模组13即为独立的射频接收(RX)模组，用于将接收 到的第二天线142的信号进行初级放大后发送至射频收发器11进行处理。
具体的，在所述射频电路工作于发射模式时，所述第一开关模组处于第一导通状态和第二导通状态中的一个，即收发模组12通过该第一开关模组15与第一天线141之间导通，或者收发模组12通过该第一开关模组15与第二天线142之间导通，使得收发模组12可以通过两个天线中的任意一个天线上发射射频信号；第二开关模组处于断开状态，即接收模组13与第二天线142之间断开。
在所述射频电路工作于接收模式时，所述第一开关模组15处于第一导通状态，即收发模组12通过该第一开关模组15与第一天线141之间导通，第二开关模组16处于导通状态，即接收模组13通过该第二开关模组16与第二天线142之间导通，保证两路天线的接收，从而保证射频信号的有效传输。
可选的，本公开的一些实施例中的单刀双掷开关(SP2T)和单刀单掷卡关(SPST)开关，可集成于一个开关芯片(IC)中，以提升射频前端系统的集成度和布板面积。
上述方案中，收发模组12通过第一开关模组15与第一天线141和第二天线142连接；通过该第一开关模组15，收发模组12可以与第一天线141或第二天线142导通；并且第二开关模组16仅与第二天线142连接，通过该第二开关模组16控制接收模组13与该第二天线142与之间的导通或者断开，实现射频信号的发送和/或接收，并且单刀四掷开关在4GHz下的插入损耗大约位0.45dB，单刀单掷开关在4GHz下的插入损耗小于0.4dB，相比于采用DPDT的射频电路，能够降低插入损耗和成本，从而降低终端的损耗，对系统系统灵敏度和优化射频发射功耗都有较大价值。
如图3和图4，本公开的一些实施例提供了一种1T4R的射频电路的示例。其中，该射频电路包括：射频收发器31、与所述射频收发器31连接的收发模组32和至少一个接收模组33、至少两个天线34、第一开关模组35、至少一个第二开关模组36以及调制解调器37。
其中，所述第一开关模组35分别与所述收发模组32和所述至少两个天线34连接，且所述收发模组32通过所述第一开关模组35与任一所述天线34导通；一个所述第二开关模组36分别与一个所述接收模组33和一个所述 天线34连接；所述调制解调器37与所述射频收发器31连接。
其中，所述至少两个天线34包括：第一天线341、第二天线342、第三天线343和第四天线344。
其中，所述第一开关模组35分别与所述收发模组32、所述第一天线341、所述第二天线342、所述第三天线343和所述第四天线344连接，且所述收发模组32通过所述第一开关模组35与所述第一天线341、所述第二天线342、所述第三天线343和所述第四天线344中的任意一个导通。
可选的，所述第一开关模组35为单刀四掷开关。具体的，所述第一开关模组35包括：第一连接端、第二连接端、第三连接端、第四连接端和第五连接端；
所述第一天线341连接于所述第一连接端，所述第二天线342连接于所述第二连接端，所述第三天线343连接于所述第三连接端，所述第四天线344连接于所述第四连接端，所述收发模组32连接于所述第五连接端；
其中，所述第五连接端与所述第一连接端、所述第二连接端、所述第三连接端和所述第四连接端中的任意一个导通，以使第一开关模组35具有第一导通状态：第五连接端与所述第一连接端导通，即所述收发模组32通过该第一开关模组35与第一天线341导通；第二导通状态：第五连接端与所述第二连接端导通，即所述收发模组32通过该第一开关模组35与第二天线342导通；第三导通状态：第五连接端与所述第三连接端导通，即所述收发模组32通过该第一开关模组35与第三天线343导通；第四导通状态：第五连接端与所述第四连接端导通，即所述收发模组32通过该第一开关模组35与第四天线344导通。
具体的，所述至少一个接收模组33包括：第一子接收模组331、第二子接收模组332和第三子接收模组333；
所述第二开关模组36包括：第一子开关模组361、第二子开关模组362和第三子开关模组363；
其中，所述第一子接收模组331通过所述第一子开关模组361与所述第二天线342连接；
所述第二子接收模组332通过所述第二子开关模组362与所述第三天线 343连接；
所述第三子接收模组333通过所述第三子开关模组363与所述第四天线344连接。
可选的，所述第二开关模组36为单刀单掷开关，也即第一子开关模组361、第二子开关模组362和第三子开关模组363分别为单刀单掷开关。这样，通过该第一子开关模组361，该第一子接收模组331可以处于与第二天线342导通的状态，或者断开的状态；通过该第二子开关模组362，该第二子接收模组332可以处于与第三天线343导通的状态，或者断开的状态；通过该第三子开关模组363，该第三子接收模组333可以处于与第四天线344导通的状态，或者断开的状态。
其中，调制解调器37用于对射频收发器31接收的信号进行解调处理，以及把调制后的携带有用信息的信号发送至射频收发器31。同时还可以实现对射频收发器31、收发模组32、第一子接收模组331、第二子接收模组332、第三子接收模组333、第一开关模组35、第一子开关模组361、第二子开关模组362和第三子开关模组363等的控制。
射频收发器31用于输出上行的发射(TX)信号至收发模组32、第一子接收模组331、第二子接收模组332和第三子接收模组333中的至少一个，接收收发模组32、第一子接收模组331、第二子接收模组332和第三子接收模组333中的至少一个下行的接收(RX)信号。
可选的，该收发模组32即为射频发射和接收(TX/RX)模组，用于将射频收发器31发出的射频信号进行放大处理，并发送至第一天线341、第二天线342、第三天线343和第四天线344中的一个，以及将接收到第一天线341、第二天线342、第三天线343和第四天线344中的一个天线的信号进行初级放大后发送至射频收发器31处理。
可选的，该第一子接收模组331即为射频接收(RX)模组，用于将接收到的第二天线342的信号进行初级放大后发送至射频收发器31进行处理；第二子接收模组332即为射频接收(RX)模组，用于将接收到的第三天线343的信号进行初级放大后发送至射频收发器31进行处理；第三子接收模组333即为射频接收(RX)模组，用于将接收到的第四天线344的信号进行初级放 大后发送至射频收发器31进行处理。
具体的，在所述射频电路工作于发射模式时，所述第一子开关模组361、第二子开关模组362和第三子开关模组363均处于断开状态，也即第一子接收模组331与第一天线341之间断开，第二子接收模组332与第二天线342之间断开，第三子接收模组333与第三天线343之间断开；所述收发模组32通过所述第一开关模组35与所述第一天线341、所述第二天线342、所述第三天线343和所述第四天线344中的一个导通，即第一开关模组35处于第一导通状态、第二导通状态、第三导通状态、第四导通状态中的一个，使得收发模组32可以通过四个天线中的任意一个天线上发射射频信号。
在所述射频电路工作于接收模式时，所述第一子开关模组361、第二子开关模组362和第三子开关模组363均处于闭合状态，也即第一子接收模组331通过第一子开关模组361与第二天线342之间导通，第二子接收模组332通过第二子开关模组362与第三天线343之间导通，第三子接收模组333通过第三子开关模组363与第四天线344之间导通；且所述收发模组32通过所述第一开关模组35与所述第一天线341导通，也即第一开关模组35处于第一导通状态，保证四路天线的接收，从而保证射频信号的有效传输。
可选的，本公开的一些实施例中的单刀四掷开关(SP4T)和单刀单掷卡关(SPST)开关，可集成于一个开关芯片(IC)中，以提升射频前端系统的集成度和布板面积。
上述方案中，收发模组32通过第一开关模组35与四个天线34连接；通过该第一开关模组35，收发模组32可以与四个天线34中的任意一个导通；并且一个第二开关模组36对应一个接收模组33和一个天线34进行连接，通过该第二开关模组36，控制与该第二开关模组36对应连接的天线34与接收模组33之间的导通或者断开，实现射频信号的发送和/或接收，并且单刀四掷开关在4GHz下的插入损耗大约位0.45dB，单刀单掷开关在4GHz下的插入损耗小于0.4dB，相比于采用3P3T和4P4T的射频电路，插入损耗将优化0.35～1.2dB，从而降低终端的损耗，对系统系统灵敏度和优化射频发射功耗都有较大价值。
如图5，本公开的一些实施例还提供了一种终端，该终端500包括但不 限于：射频单元501、网络模块502、音频输出单元503、输入单元504、传感器505、显示单元506、用户输入单元507、接口单元508、存储器509、处理器510、以及电源511等部件。本领域技术人员可以理解，图5中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开的一些实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
其中，射频单元501，包括：射频收发器、与所述射频收发器连接的收发模组和至少一个接收模组、至少两个天线、第一开关模组、至少一个第二开关模组以及调制解调器。
其中，所述第一开关模组分别与所述收发模组和所述至少两个天线连接，且所述收发模组通过所述第一开关模组与任一所述天线导通；一个所述第二开关模组分别与一个所述接收模组和一个所述天线连接；所述调制解调器与所述射频收发器连接。
本公开的一些实施例的终端中的射频单元501，收发模组通过第一开关模组与至少两个天线连接；通过该第一开关模组，收发模组可以与任意一个天线导通；并且一个第二开关模组与一个天线连接，通过该第二开关模组控制与该第二开关模组对应连接的天线与接收模组之间的导通或者断开，实现射频信号的发送和/或接收，并且与采用3P3T和4P4T的射频电路相比，降低了插入损耗和成本，还有利于提高系统灵敏度。
应理解的是，本公开的一些实施例中，射频单元501可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器510处理；另外，将上行的数据发送给基站。通常，射频单元501包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元501还可以通过无线通信系统与网络和其他设备通信。
终端通过网络模块502为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元503可以将射频单元501或网络模块502接收的或者在存 储器509中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元503还可以提供与终端500执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元503包括扬声器、蜂鸣器以及受话器等。
输入单元504用于接收音频或视频信号。输入单元504可以包括图形处理器(Graphics Processing Unit，GPU)5041和麦克风5042，图形处理器5041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元506上。经图形处理器5041处理后的图像帧可以存储在存储器509(或其它存储介质)中或者经由射频单元501或网络模块502进行发送。麦克风5042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元501发送到移动通信基站的格式输出。
终端500还包括至少一种传感器505，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板5061的亮度，接近传感器可在终端500移动到耳边时，关闭显示面板5061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器505还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元506用于显示由用户输入的信息或提供给用户的信息。显示单元506可包括显示面板5061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板5061。
用户输入单元507可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元507包括触控面板5071以及其他输入设备5072。触控面板5071，也称为触摸屏， 可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板5071上或在触控面板5071附近的操作)。触控面板5071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器510，接收处理器510发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板5071。除了触控面板5071，用户输入单元507还可以包括其他输入设备5072。具体地，其他输入设备5072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板5071可覆盖在显示面板5061上，当触控面板5071检测到在其上或附近的触摸操作后，传送给处理器510以确定触摸事件的类型，随后处理器510根据触摸事件的类型在显示面板5061上提供相应的视觉输出。虽然在图5中，触控面板5071与显示面板5061是作为两个独立的部件来实现终端的输入和输出功能，但是在某些实施例中，可以将触控面板5071与显示面板5061集成而实现终端的输入和输出功能，具体此处不做限定。
接口单元508为外部装置与终端500连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元508可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到终端500内的一个或多个元件或者可以用于在终端500和外部装置之间传输数据。
存储器509可用于存储软件程序以及各种数据。存储器509可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器509可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器510是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器509内的软件程序和/或模块，以及调用存储在存储器509内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器510可包括一个或多个处理单元；可选的，处理器510可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器510中。
终端500还可以包括给各个部件供电的电源511(比如电池)，可选的，电源511可以通过电源管理系统与处理器510逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，终端500包括一些未示出的功能模块，在此不再赘述。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。
尽管已描述了本公开的一些实施例的可选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括可选实施例以及落入本公开的一些实施例范围的所有变更和修改。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。
以上所述的是本公开的可选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以作出若干改进和润饰， 这些改进和润饰也在本公开的保护范围内。

Claims (9)

  1. 一种射频电路，包括：
    射频收发器；
    与所述射频收发器连接的收发模组和至少一个接收模组；
    至少两个天线；
    第一开关模组，分别与所述收发模组和所述至少两个天线连接，且所述收发模组通过所述第一开关模组与任一所述天线导通；
    至少一个第二开关模组，一个所述第二开关模组分别与一个所述接收模组和一个所述天线连接。
  2. 根据权利要求1所述的射频电路，其中，所述至少两个天线包括：第一天线、第二天线、第三天线和第四天线；
    其中，所述第一开关模组分别与所述收发模组与所述第一天线、所述第二天线、所述第三天线和所述第四天线连接，且所述收发模组通过所述第一开关模组与所述第一天线、所述第二天线、所述第三天线和所述第四天线中的任意一个导通。
  3. 根据权利要求2所述的射频电路，其中，所述第一开关模组包括：第一连接端、第二连接端、第三连接端、第四连接端和第五连接端；
    所述第一天线连接于所述第一连接端，所述第二天线连接于所述第二连接端，所述第三天线连接于所述第三连接端，所述第四天线连接于所述第四连接端，所述收发模组连接于所述第五连接端；
    其中，所述第五连接端与所述第一连接端、所述第二连接端、所述第三连接端和所述第四连接端中的任意一个导通。
  4. 根据权利要求2或3所述的射频电路，其中，所述第一开关模组为单刀四掷开关。
  5. 根据权利要求2所述的射频电路，其中，所述至少一个接收模组包括：第一子接收模组、第二子接收模组和第三子接收模组；
    所述至少一个第二开关模组包括：第一子开关模组、第二子开关模组和第三子开关模组；
    其中，所述第一子接收模组通过所述第一子开关模组与所述第二天线连接；
    所述第二子接收模组通过所述第二子开关模组与所述第三天线连接；
    所述第三子接收模组通过所述第三子开关模组与所述第四天线连接。
  6. 根据权利要求1或5所述的射频电路，其中，所述第二开关模组为单刀单掷开关。
  7. 根据权利要求5所述的射频电路，其中，在所述射频电路工作于发射模式时，所述第一子开关模组、第二子开关模组和第三子开关模组均处于断开状态，所述收发模组通过所述第一开关模组与所述第一天线、所述第二天线、所述第三天线和所述第四天线中的一个导通。
  8. 根据权利要求5所述的射频电路，其中，在所述射频电路工作于接收模式时，所述第一子开关模组、第二子开关模组和第三子开关模组均处于闭合状态，所述收发模组通过所述第一开关模组与所述第一天线导通。
  9. 一种终端，包括如权利要求1至8中任一项所述的射频电路。
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