Radio frequency front-end module, radio frequency system and electronic device

Abstract

The application provides a radio frequency front end module, a radio frequency system and an electronic device. The radio frequency front end module comprises a first antenna port, a first transmitting port, a second transmitting port, a first receiving port, a second receiving port and a first switch unit. A first transceiver circuit comprises a first transmitting channel and a first receiving channel. A second transceiver circuit comprises a second transmitting channel and a second receiving channel. The first transceiver circuit and the second transceiver circuit are respectively used for transmitting and / or receiving radio frequency signals of a first frequency band and a second frequency band. A plurality of ports in the radio frequency front end module are connected to a plurality of channels one by one. A second end of the first switch unit is connected to the first antenna port. The first switch is configured to control the connection of the first end and the second end to switch the connection of the first antenna port and the plurality of channels to use the first antenna to transmit or receive radio frequency signals of the first frequency band or the second frequency band.

Description

Technical Field

[0001] This application relates to the field of radio frequency technology, and more specifically, to a radio frequency front-end module, a radio frequency system, and an electronic device. Background Technology

[0002] In multiple-input multiple-output (MIMO) radio frequency (RF) systems, to enable the RF system to transmit and receive signals in multiple different frequency bands, separate transmit channels and multiple receive channels are set up for each frequency band. This results in lower integration of devices in the RF system and occupies a larger substrate area. Summary of the Invention

[0003] This application provides a radio frequency (RF) front-end module, an RF system, and an electronic device. The various aspects involved in the embodiments of this application are described below.

[0004] In a first aspect, a radio frequency (RF) front-end module is provided for use in an RF system, the RF system including an RF transceiver and a multiple-input multiple-output (MIMO) antenna array, the RF front-end module being connected between the RF transceiver and the antenna array, characterized in that it includes: a first antenna port for connecting to a first antenna in the antenna array; a first transmit port, a second transmit port, a first receive port, and a second receive port for connecting to the RF transceiver; a first switching unit including multiple first terminals and second terminals; a first transceiver circuit for transmitting and / or receiving RF signals in a first frequency band, including a first transmit channel and a first receive channel; and a second transceiver circuit for transmitting RF signals in a second frequency band. The signal generation and / or reception includes a second transmitting channel and a second receiving channel; the first end of the first transmitting channel, the second transmitting channel, the first receiving channel, and the second receiving channel are connected one-to-one with the first transmitting port, the second transmitting port, the first receiving port, and the second receiving port, and the other end is connected one-to-one with the plurality of first ends; the second end of the first switching unit is connected to the first antenna port, and the first switch is configured to control the connection between the second end and the plurality of first ends to switch the connection between the first antenna port and the plurality of channels, so as to use the first antenna to transmit or receive radio frequency signals of the first frequency band or the second frequency band.

[0005] Secondly, a radio frequency (RF) system is provided, including a multiple-input multiple-output (MIMO) antenna array comprising multiple antennas; an RF transceiver; one or more RF front-end modules connected between the RF transceiver and the antenna array, the one or more RF front-end modules including a first RF front-end module; the first RF front-end module including: a first antenna port connected to a first antenna in the antenna array; a first transmit port, a second transmit port, a first receive port, and a second receive port connected to the RF transceiver; a first switching unit including multiple first terminals and second terminals; a first transceiver circuit for transmitting and / or receiving RF signals in a first frequency band, including a first transmit channel and a first receive channel; and a second transceiver circuit for... The system generates and / or receives radio frequency signals in the second frequency band, including a second transmitting channel and a second receiving channel. The first end of each of the first transmitting channel, the second transmitting channel, the first receiving channel, and the second receiving channel is connected to a first transmitting port, a second transmitting port, a first receiving port, and a second receiving port, respectively, and the other end is connected to each of the plurality of first ends. The second end of the first switching unit is connected to the first antenna port. The first switch is configured to control the connection between the second end and the plurality of first ends to switch the connection between the first antenna port and the plurality of channels, so as to use the first antenna to transmit or receive radio frequency signals in the first frequency band or the second frequency band.

[0006] Thirdly, an electronic device is provided, the electronic device comprising: a radio frequency front-end module as described in the first aspect and / or a radio frequency system as described in the second aspect.

[0007] According to the RF front-end module provided in this application, by integrating the transmit and receive channels of different frequency bands corresponding to at least one antenna in the antenna array into the same RF front-end module, the integration level of the RF system is improved, which can avoid the problems of large substrate area and high cost caused by setting multiple transmit and receive channels in the prior art. Attached Figure Description

[0008] Figure 1 This is a schematic structural diagram of a radio frequency system in related technologies.

[0009] Figure 2 This is a schematic diagram of a radio frequency system that supports 4*4 MIMO in related technologies.

[0010] Figure 3 This is a schematic structural diagram of a radio frequency system provided in an embodiment of this application.

[0011] Figure 4 This is a schematic structural diagram of a radio frequency front-end module provided in another embodiment of this application.

[0012] Figure 5 This is a schematic structural diagram of a radio frequency front-end module provided in another embodiment of this application.

[0013] Figure 6 This is a schematic structural diagram of a radio frequency front-end module provided in another embodiment of this application.

[0014] Figure 7 It is an application Figure 4 A schematic diagram of the structure of an RF system supporting 4*4 MIMO, which is the RF front-end module in the RF system.

[0015] Figure 8 It is an application Figure 5 A schematic diagram of the structure of an RF system supporting 4*4 MIMO, which is the RF front-end module in the RF system.

[0016] Figure 9 It is an application Figure 6 A schematic diagram of the structure of an RF system supporting 4*4 MIMO, which is the RF front-end module in the RF system.

[0017] Figure 10 This is a schematic structural diagram of the radio frequency system provided in the embodiments of this application.

[0018] Figure 11 This is a schematic structural diagram of an electronic device provided in an embodiment of this application.

[0019] Figure 12 This is a schematic structural diagram of an electronic device provided in another embodiment of this application. Detailed Implementation

[0020] To facilitate understanding of the present invention, the following description, in conjunction with the accompanying drawings, illustrates the configuration of a radio frequency system in the related art. Figure 1 This is a schematic structural diagram of a radio frequency system 10 in related technologies. Figure 1 The system includes: a radio frequency transceiver 11, a first radio frequency front-end module 12A, a second radio frequency front-end module 12B, a first antenna 13A, and a second antenna 13B.

[0021] The radio frequency transceiver 11 is used to process radio frequency signals. For example, the radio frequency transceiver 11 can control the reception and transmission of radio frequency signals. The radio frequency signal can be, for example, a WIFI signal, which can be a 2.4 GHz or 5 GHz signal.

[0022] The radio frequency transceiver 11 is connected to the first radio frequency front-end module 12A to receive and transmit WIFI and Bluetooth signals at a frequency of 2.4 GHz.

[0023] The radio frequency transceiver 11 is also connected to the second radio frequency front-end module 12B to receive and transmit WIFI signals at frequencies of 5 GHz and above.

[0024] The first radio frequency front-end module 12A is disposed between the radio frequency transceiver 11 and the first antenna 13A, and includes a transmitting channel 121A, a receiving channel 122A and a Bluetooth transceiver channel 123A.

[0025] One end of the transmitting channel 121A is connected to the TX port and the other end is connected to the ANT port. It receives the radio frequency signal emitted by the radio frequency transceiver 11 from the TX port, amplifies and filters the signal, and then outputs it through the ANT port and transmits it through the first antenna 13A.

[0026] One end of the receiving channel 122A is connected to the RX port, and the other end is connected to the ANT port. In actual operation, the 2.4GHz radio frequency signal received by the first antenna 13A is sent to the receiving channel 122A through the ANT port. After filtering and amplifying the received signal, the receiving channel 122A sends it to the radio frequency transceiver 11 through the RX port.

[0027] One end of the Bluetooth transceiver channel 123A is connected to the BT port, and the other end is connected to the first antenna 13 through the ANT port. It is used to process the Bluetooth signal emitted by the radio frequency transceiver 11 and then transmit it through the first antenna 13A, and to process the Bluetooth signal received by the first antenna 13A and then send it to the radio frequency transceiver 11.

[0028] The second RF front-end module 12B is disposed between the RF transceiver 11 and the second antenna 13B, and includes a transmit channel 121B and a receive channel 122B. The connection method and operating principle of the transmit channel 121B and the receive channel 122B in the second RF front-end module 12B are the same as those of the transmit channel 121A and the receive channel 122A in the first RF front-end module 12A, and will not be repeated here. For specific connection methods, please refer to [reference needed]. Figure 1 .

[0029] The difference between the second RF front-end module 12B and the first RF front-end module 12A is that the second RF front-end module 12B is used to transmit and receive WIFI signals at frequencies of 5GHz and above, and because of the different frequency bands supported, the second RF front-end module 12B does not need to set up a Bluetooth transceiver channel.

[0030] With the rapid development of wireless communication technology, higher requirements have been placed on the utilization rate of spectrum resources and transmission efficiency. Traditional radio frequency systems based on a single antenna have small transmission bandwidth and are easily affected by external interference, which cannot meet the higher requirements.

[0031] Therefore, multiple-input multiple-output (MIMO) technology based on multiple antennas has emerged in related technologies. MIMO technology refers to using multiple transmit antennas and multiple receive antennas at the transmit and receive ports respectively, making full use of space resources and achieving multiple transmissions and receptions through multiple antennas. Without increasing spectrum resources or antenna transmit power, it can multiply the system channel capacity. Depending on the number of antennas used in signal transmission and reception, 2*2 MIMO or 4*4 MIMO radio frequency systems can be constructed.

[0032] Figure 2 The diagram shown is a schematic structural diagram of a radio frequency system 20 supporting 4*4 MIMO in related technologies. The following section discusses... Figure 2 The radio frequency system and its problems are illustrated in detail with examples.

[0033] Figure 2 The radio frequency system 20 includes: a radio frequency transceiver 201, a first radio frequency front-end module 202, a second radio frequency front-end module 203, a third radio frequency front-end module 204, a fourth radio frequency front-end module 205, a first receiving channel 206, a second receiving channel 207, a third receiving channel 208, a fourth receiving channel 209, and an antenna array 210.

[0034] The first RF front-end module 202, the third RF front-end module 204, the first receiving channel 206, and the third receiving channel 208 are used to receive and transmit WIFI signals in the first frequency band (e.g., 2.4 GHz) through multiple antennas in the antenna array 210. The second RF front-end module 203, the fourth RF front-end module 205, the second receiving channel 207, and the fourth receiving channel 209 are used to receive and transmit WIFI signals in the second frequency band (e.g., 5 GHz and above) through the antenna array 210. The connection relationships and operating processes of the components in this system are described in detail below.

[0035] The first radio frequency front-end module 202 is connected to the first antenna 210A in the antenna array 210 to transmit and receive the main signal of the first frequency band through the first antenna 210A.

[0036] The second antenna 210B, the third antenna 210C, and the fourth antenna 210D in the antenna array 210 are respectively connected to the first receiving channel 206, the third radio frequency front-end module 204, and the third receiving channel 208 to receive the diversity signal, the main MIMO signal, and the diversity MIMO signal of the first frequency band.

[0037] The second radio frequency front-end module 203 is connected to the first antenna 210A in the antenna array 210 to transmit and receive the main signal of the second frequency band through the first antenna 210A.

[0038] Meanwhile, the second antenna 210B, the third antenna 210C, and the fourth antenna 210D are also connected to the second receiving channel 207, the fourth radio frequency front-end module 205, and the fourth receiving channel 209, respectively, to receive the diversity signal, main MIMO signal, and diversity MIMO signal of the second frequency band in decibels.

[0039] It should be understood that in the radio frequency system 20, the multiple antennas in the antenna array 210 are antennas that support the transmission and reception of signals in multiple frequency bands, and each antenna in the antenna array is connected to two channels or radio frequency front-end modules. Therefore, in Figure 2 The radio frequency system shown also includes combiners 211A, 211B, 211C and 211D. When the system is working, each antenna can be connected to a different channel or radio frequency front-end module by adjusting the connection status of the combiner connected to each antenna.

[0040] The following section will take the first frequency band radio frequency signal as an example to give a detailed explanation of the structure of each module and unit in the system used for transmitting and receiving signals in the first frequency band.

[0041] The first radio frequency front-end module 202 includes a transmit channel 2021, a receive channel 2022, and a Bluetooth transceiver channel 2023. The first ends of the above-mentioned channels are respectively connected to the TX port, RX port, and BT port, and the second ends are connected to the ANT port of the first radio frequency front-end module 202, thereby forming a radio frequency branch between the first antenna 210A and the first radio frequency front-end module 202.

[0042] When transmitting the main signal of the first frequency band, the radio frequency transceiver 201 generates the signal to be transmitted and sends it to the first transmission channel 2021 through the TX port. After amplification, the signal is output from the ANT port to the first antenna 210A through the combiner 211A.

[0043] When receiving the main signal, the main signal of the first frequency band received by the first antenna 210A is processed by the first radio frequency front-end module 202 through the ANT port and the receiving channel 2022. The processed signal is then sent to the radio frequency transceiver 201 through the RX port.

[0044] When transmitting Bluetooth signals, the RF transceiver generates the signal to be transmitted, which enters the first RF front-end module 202 through the BT port, and then passes through the Bluetooth transceiver channel 2023 before being output from the ANT port to the first antenna 210A via the combiner 211. The process of receiving Bluetooth signals is the reverse of that of transmitting signals, and will not be described in detail here.

[0045] The first receiving channel 206 is located between the radio frequency transceiver 201 and the second antenna 210B. The first receiving channel 206 includes an amplifier 2061 and a bypass switch 2062 connected in parallel with the amplifier 2061. The diversity signal of the first frequency band received by the second antenna 210B enters the first receiving channel 206 after passing through the combiner 211B.

[0046] When the graded signal of the first frequency band is a low-intensity signal, it needs to be amplified. At this time, the control bypass switch 2062 is opened, and the signal is amplified by amplifier 2061 and then output to RF transceiver 201.

[0047] When the diversity signal is a medium to high intensity signal, no amplification is required. At this time, the first bypass switch 2062 can be turned on, so that the signal on the channel can be directly output to the radio frequency transceiver 201.

[0048] The third antenna 210C and the fourth antenna 210D receive the main MIMO signal and diversity MIMO signal of the first frequency band through the third RF front-end module 204 and the third receiving channel 208, respectively. The connection method between the third antenna 210C and the third RF front-end module 204 and the fourth antenna 210D and the third receiving channel 208, as well as the method of signal reception, are the same as those of the first antenna 210A and the second antenna 210B described above. Please refer to the previous description, which will not be repeated here.

[0049] As mentioned earlier, the system 20 is also used for transmitting and receiving radio frequency signals in the second frequency band.

[0050] Specifically, the first antenna 210A is connected to the second radio frequency front-end module 203 through a combiner 211A, so as to transmit and receive the main signal of the second frequency band through the transmit channel 2031 and the receive channel 2032 in the second radio frequency front-end module 203.

[0051] The second antenna 210B is connected to the second receiving channel 207 via a combiner 211B, and the second receiving channel 207 is used to receive diversity signals in the second frequency band. Similar to the first receiving channel 206 mentioned above, the second receiving channel 207 also includes an amplifier 2071 and a bypass switch 2072 to process signals of different strengths. It should be understood that the difference between the second receiving channel 207 and the first receiving channel 206 lies in their operating frequency bands.

[0052] The third antenna 210C is connected to the fourth RF front-end module 205, thereby utilizing the receiving channel 2052 in the fourth RF front-end module 205 to receive the primary MIMO signal of the second frequency band. It is understood that since the third antenna 210C is connected to both the third RF front-end module 204 and the fourth RF front-end module 205 to process signals from different frequency bands, a combiner 211C is provided between the third antenna 210C and these two RF front-end modules to adjust the connection relationship between the antenna and the different modules.

[0053] Similar to the second antenna 210B, the fourth antenna 210D is connected to the fourth receiving channel 209 via a combiner 211D to receive diversity MIMO signals in the second frequency band. The structure and operation of the fourth receiving channel 209 are the same as those of the second receiving channel 207 described above, and will not be repeated here.

[0054] As can be seen from the description of the radio frequency system 20 above, in order to enable multiple antennas in the antenna array 26 to receive signals simultaneously, multiple transmission channels and multiple reception channels need to be set for each frequency band. This results in low integration of the devices in the radio frequency system and occupies a large chip area, leading to high hardware costs.

[0055] To address the aforementioned issues, embodiments of this application provide a radio frequency system and its control method, a radio frequency front-end module, and an electronic device.

[0056] To facilitate understanding of this application, detailed descriptions of specific embodiments are provided below with reference to the accompanying drawings. Numerous specific details are set forth in the following description to provide a thorough understanding of this application, and preferred embodiments are illustrated in the accompanying drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. This application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0057] This application first provides a radio frequency front-end module, which can be applied to a radio frequency system. The radio frequency system can be applied to a communication device with wireless communication function. The communication device can be, for example, a handheld device, an in-vehicle device, a wearable device, a computing device or other processing device connected to a wireless communication network, as well as various forms of user equipment (UE) (e.g., mobile phone), mobile station (MS), etc.

[0058] like Figure 3 The diagram shown is a schematic structural diagram of the radio frequency system 30 provided in an embodiment of this application. Figure 3 The radio frequency system 30 includes an antenna array 31, which includes multiple antennas 31A, 31B, ..., 31N. These multiple antennas can simultaneously transmit or receive radio frequency signals. For example, when the antenna array includes two antennas 31A and 31B, the radio frequency system supports 2*2 MIMO, and antennas 31A and 31B can be used to receive main and diversity signals, respectively. As another example, when the antenna array 31 includes four antennas, the radio frequency system supports 4*4 MIMO, and the four antennas can be used to receive main, diversity, main MIMO, and diversity MIMO signals, respectively.

[0059] The radio frequency transceiver 32 includes multiple ports that are connected to the radio frequency front-end module, through which signals are transmitted and received.

[0060] The radio frequency front-end module 33 is connected between the radio frequency transceiver 32 and the antenna array 31. It is used to amplify the signal processed by the radio frequency transceiver 32 and transmit it through the antenna, and to receive radio frequency signals through the antenna connected to it, process them, and send them to the radio frequency transceiver 32.

[0061] It should be understood that, Figure 3 The RF system shown may include only one RF front-end module, such as only RF front-end module 33A in the figure. This RF front-end module 33A is connected to all the antennas in the antenna array 31 to achieve the transmission and reception of RF signals using the antenna array. Alternatively, the RF system may include multiple RF front-end modules 33A, ..., 33N, where each RF front-end module is connected to a portion of the antennas in the antenna array.

[0062] It should be noted that the following description of the radio frequency front-end module provided in the embodiments of this application is based on an example of a radio frequency front-end module in the radio frequency system.

[0063] The following is combined with Figure 4 The structure of the radio frequency front-end module provided in the embodiments of this application will be described in detail. This radio frequency front-end module can be applied to... Figure 3 The radio frequency system 30 shown.

[0064] like Figure 4 As shown, the radio frequency front-end module 40 includes: a first transmit port 41A, a second transmit port 41B, a first receive port 42A and a second receive port 42B, and a first antenna port 43A.

[0065] The aforementioned ports can be understood as pin terminals of the RF front-end module, used to connect with external devices. Specifically, the first transmit port 41A, the second transmit port 41B, the first receive port 42A, and the second receive port 42B are used to connect with the RF transceiver to receive the signal to be transmitted from the RF transceiver and to send the signal processed by the RF front-end module to the RF transceiver; the first antenna port 43A is used to connect with the first antenna in the external antenna array.

[0066] Figure 4 The radio frequency front-end module 40 also includes a first transceiver circuit 44, a second transceiver circuit 45, and a first switching unit 46.

[0067] The first transceiver circuit 44 is used to transmit and / or receive radio frequency signals in the first frequency band, and the second transceiver circuit 45 is used to transmit and / or receive radio frequency signals in the second frequency band.

[0068] Specifically, the first transceiver circuit 44 includes a first transmitting channel 441 and a first receiving channel 442, and the second transceiver circuit 45 includes a second transmitting channel 451 and a second receiving channel 452.

[0069] The first switching unit 46 includes multiple first terminals 461A, ..., 461N and a second terminal 462A.

[0070] The first end of the first transmitting channel 441, the second transmitting channel 451, the first receiving channel 442, and the second receiving channel 452 are connected one-to-one with the first transmitting port 41A, the second transmitting port 41B, the first receiving port 42A, and the second receiving port 42B, respectively, and the other end is connected one-to-one with the plurality of first ends 461A, ..., 461N, respectively. The second end 462 of the first switching unit 46 is connected to the first antenna port 43A.

[0071] In the radio frequency system 40, the first switch 46 is configured to control the connection between the second terminal 462 and the plurality of first terminals 461A, ..., 461N, thereby switching the connection between the first antenna port 43A and the plurality of channels, so as to use the first antenna to transmit or receive radio frequency signals in the first frequency band or the second frequency band.

[0072] In some implementations, the radio frequency signal of the first frequency band includes a 2.4 GHz WIFI signal and / or a Bluetooth signal, and the radio frequency signal of the second frequency band includes a 5 GHz and / or 6 GHz WIFI signal.

[0073] Figure 5 This is a schematic structural diagram of a radio frequency front-end module provided in another embodiment of this application, as shown below. Figure 5 As shown, the RF front-end module includes two first receiving ports 42A and two second receiving ports 42B.

[0074] Figure 5 The radio frequency front-end module also includes a second antenna port 43B for connecting to the second antenna in the antenna array.

[0075] Meanwhile, the first transceiver circuit 44 includes two first receiving channels 442, and the second transceiver circuit 45 includes two second receiving channels 452. The two first receiving channels 442 are used to receive the main signal and diversity signal of the first frequency band radio frequency signal through the first antenna and the second antenna, and the two second receiving channels 452 are used to receive the main signal and diversity signal of the first frequency band radio frequency signal through the first antenna and the second antenna.

[0076] Continue reading Figure 5 One end of each of the two first receiving channels 442 is connected to one of the two first receiving ports 42A, and the other end is connected to one of the two first ends of the first switching unit 46. One end of each of the two second receiving channels 452 is connected to one of the two second receiving ports 42B, and the other end is connected to one of the two first ends of the first switching unit 46.

[0077] exist Figure 5 In the radio frequency front-end module shown, the first switching unit 46 includes two second terminals 462A and 462B, which are respectively connected to the first antenna port 43A and the second antenna port 43B.

[0078] Furthermore, in some implementation methods, please refer to [the relevant documentation / reference]. Figure 5 The radio frequency front-end module also includes:

[0079] Two third receive ports 42C and two fourth receive ports 42D are used for connection to the RF transceiver.

[0080] The system includes a first input port 47A, a second input port 47B, a third input port 47C, and a fourth input port 47D; wherein the first input port 47A and the third input port 47C are used to connect to the third antenna in the antenna array, and the second input port 47B and the fourth input port 47D are used to connect to the fourth antenna.

[0081] Figure 5The radio frequency front-end module also includes two third receiving channels 48 and two fourth receiving channels 49.

[0082] One end of each of the two third receiving channels 48 is connected to one of the two third receiving ports 42C, and the other end is connected to the first input port 47A and the second input port 47B, respectively. These two third receiving channels 48 are used to receive the main MIMO signal and diversity MIMO signal of the first frequency band via the third antenna and the fourth antenna, respectively.

[0083] One end of each of the two fourth receiving channels 49 is connected to one of the two fourth receiving ports 42D, and the other end is connected to the third input port 47C and the fourth input port 47D, respectively. The two fourth receiving channels 49 are used to receive the main MIMO signal and diversity MIMO signal of the second frequency band via the third antenna and the fourth antenna, respectively.

[0084] Figure 6 This is a schematic structural diagram of a radio frequency front-end module provided in another embodiment of this application. Please refer to... Figure 6 The radio frequency front-end module includes:

[0085] Four first receive ports 42A and four second receive ports 42B are used for connection to an RF transceiver.

[0086] The second antenna port 43B, the third antenna port 43C, and the fourth antenna port 43D are respectively connected to the second, third, and fourth antennas in the antenna array.

[0087] exist Figure 6 In the RF front-end module shown, the first transceiver circuit 44 includes four first receiving channels 442, and the second transceiver circuit 45 includes four second receiving channels 452. The first switching unit 46 includes four second segments 462A, 462B, 462C, and 462D, which are respectively connected to the first antenna port 43A, the second antenna port 43B, the third antenna port 43C, and the fourth antenna port 43D.

[0088] One end of each of the four first receiving channels 442 is connected to one of the four first receiving ports 42A, and the other end is connected to one of the four first terminals of the first switching unit 46. By switching the connection states of the first and second terminals of the first switching unit 46, the four first receiving channels 442 can receive the main signal, diversity signal, main MIMO signal and diversity MIMO signal of the first frequency band through the four antennas in the antenna array.

[0089] Figure 6One end of each of the four second receiving channels 452 is connected to one of the four second receiving ports 42B, and the other end is connected to one of the four first terminals of the first switching unit 46. By switching the connection states of the first and second terminals of the first switching unit 46, the four second receiving channels 452 can receive the main signal, diversity signal, main MIMO signal and diversity MIMO signal of the second frequency band through the four antennas in the antenna array.

[0090] In some implementations, see also Figures 4-6 In the radio frequency front-end modules provided in the various embodiments of this application:

[0091] The first transmission channel 441 includes a first sub-transmission channel 441A and a second sub-transmission channel 441B, wherein a first power amplifier 4411 and a second power amplifier 4412 are respectively disposed in the first sub-transmission channel 441A and the second sub-transmission channel 441B. The first power amplifier 4411 is used to amplify medium-to-high power radio frequency signals, and the second power amplifier 4412 is used to amplify low-power radio frequency signals. The first transmission channel 441 also includes a second switching unit 4413, including a third terminal 4413A and two fourth terminals 4413B and 4413C, wherein the third terminal 4413A is connected to the first transmission port 41A, and the two fourth terminals 4413B and 4413C are respectively connected to the input terminals of the first power amplifier 4411 and the second power amplifier 4412; the output terminals of the first power amplifier 4411 and the second power amplifier 4412 are respectively connected to the two first terminals of the first switching unit 4413.

[0092] Figure 6 The second transmission channel 451 includes a third sub-transmission channel 451A and a fourth sub-transmission channel 451B. A third power amplifier 4511 and a fourth power amplifier 4512 are respectively installed in the third sub-transmission channel 451A and the fourth sub-transmission channel 451B. The third power amplifier 4511 amplifies medium-to-high power radio frequency signals, while the fourth power amplifier 4512 amplifies low-power radio frequency signals. The second transmission channel 451 also includes a third switching unit 4513, comprising a fifth terminal 4513A and two sixth terminals 4513B and 4513C. The fifth terminal 4513A is connected to the second transmission port 41B, and the two sixth terminals 4513B and 4513C are respectively connected to the input terminals of the third power amplifier 4511 and the fourth power amplifier 4512. The output terminals of the third power amplifier 4511 and the fourth power amplifier 4512 are respectively connected to the two first terminals of the first switching unit 46.

[0093] Taking the first frequency band radio frequency signal as an example, when the first frequency band signal to be transmitted generated by the radio frequency transceiver is a low-power radio frequency signal, it needs to be amplified. Then, the third terminal 4413A and the fourth terminal 4413B of the second switching unit 4413 can be turned on. At this time, the second sub-transmit channel is enabled, the second power amplifier 4412 amplifies the signal to be transmitted, and transmits the amplified signal through the target antenna.

[0094] In some implementations, see further reference. Figures 4-6 The radio frequency front-end modules provided in the above embodiments of this application further include:

[0095] The third transmit port 41C is used to connect to an RF transceiver.

[0096] The first transceiver circuit 44 also includes a third transmission channel 443, which is connected to a third transmission port 41C and a first terminal of the first switching unit 46 for transmitting Bluetooth signals.

[0097] In some implementations, such as Figures 4-6 As shown, the first receiving channel 442 and the second receiving channel 452 in the radio frequency front-end modules provided in the above embodiments of this application, as well as Figure 5 The third receiving channel 48 and the fourth receiving channel 49 both include a low-noise amplifier and a bypass switch connected in parallel with the low-noise amplifier.

[0098] It should be understood that the structures of the above receiving channels are basically the same. Therefore, the following detailed explanation will only take the first receiving channel 442 as an example.

[0099] The first receiving channel 442 includes: a low-noise amplifier 4421 for amplifying the received radio frequency signal; and a bypass switch 4422 connected in parallel with the low-noise amplifier 4421.

[0100] The bypass switch 4422 is configured such that when the radio frequency signal received by the first receiving channel 442 is a low-intensity radio frequency signal, the bypass switch 4422 is turned off so that the low-noise amplifier 4421 can amplify the received radio frequency signal; when the radio frequency signal on the receiving channel is a medium-to-high intensity signal, no processing is required, and the bypass switch 4422 can be turned on so that the received radio frequency signal can be directly transmitted to the radio frequency transceiver through the first receiving port 42A.

[0101] In some embodiments, the radio frequency front-end module provided in this application further includes at least one coupler port and at least one coupler. The at least one coupler port is used to connect to a radio frequency transceiver, and the coupler is used to detect the transmit power of each antenna port.

[0102] For example in Figure 4 The illustrated embodiment includes a coupler port 410A and a coupler 411A, which is disposed between the second end of the first switching unit 46 and the first antenna port 43A for detecting the transmit power of the first antenna port.

[0103] exist Figure 5 The embodiment shown includes two coupler ports 410A and 410B and two corresponding couplers 411A and 411B. The two couplers are respectively disposed between the second segment of the first switching unit and the first antenna port 43A and the second antenna port 43B to detect the transmit power of the two antenna ports.

[0104] and Figure 4 and Figure 5 The implementation methods shown are similar. Figure 6 The RF front-end module shown includes four coupler ports and couplers; the specific structure can be combined with... Figure 6 As described above, it will not be repeated here.

[0105] The above text, combined with the appendix Figure 4-6 The radio frequency (RF) front-end module provided in the embodiments of this application has been described in detail. The specific application of this RF front-end module in a multi-antenna RF system is illustrated below with reference to the accompanying drawings.

[0106] Figure 7 This is a schematic structural diagram of a radio frequency system 70 using the above-described radio frequency front-end module, provided as an embodiment of this application. Figure 7 The radio frequency system in the text is a radio frequency system that supports 4*4 MIMO.

[0107] The radio frequency system 700 includes: a radio frequency transceiver 701, a first radio frequency front-end module 702, a second radio frequency front-end module 703, a first diversity receiving module 704, a second diversity receiving module 705, and an antenna array 706.

[0108] The first radio frequency front-end module 702 is connected to the first antenna 706A in the antenna array 706 and the radio frequency transceiver 701 to transmit WIFI 2.4GHz and 5GHz signals and receive main signals.

[0109] The second RF front-end module 703 is connected to the third antenna 706C and the RF transceiver 701 for receiving 2.4GHz and 5GHz master MIMO signals.

[0110] The first diversity receiving module 704 and the second diversity receiving module are respectively connected to the second antenna 706B and the fourth antenna 706D, and both are connected to the radio frequency transceiver 701 to receive diversity signals and diversity MIMO signals respectively.

[0111] The structure and connection relationships of each module are explained in detail below.

[0112] The radio frequency transceiver 701 has ports that connect to the aforementioned multiple radio frequency modules, through which signals are transmitted and received.

[0113] The first RF front-end module 702 and the second RF front-end module 703 have the same structure and connection method with their respective antennas and RF transceivers. The first diversity receiving module 704 and the second diversity receiving module 705 also have the same structure and connection method. Therefore, the first RF front-end module 702 and the first diversity receiving module 704 will be used as examples for detailed explanation below.

[0114] The first radio frequency front-end module 702 includes a first transmitting channel 7021, a second transmitting channel 7022, a first receiving channel 7023, a second receiving channel 7024, a third transmitting channel 7025, a first switching unit, and a coupler 70271.

[0115] The first transmission channel 7021 is used to process the 2.4GHz signal. One end of it is connected to the TX0 port, and the other end is connected to the first end of the first switching unit.

[0116] The first transmission channel 7021 includes two sub-transmission channels, each equipped with a power amplifier 70211 and 70212 to amplify signals of different intensities.

[0117] A second switching unit 70213 is also provided between the two sub-transmit paths and the TX0 port. This unit is used to adjust the connection status between the TX0 port and the two sub-transmit paths according to different signal strengths. For example, when the RF transceiver transmits a medium-strong signal, the second switching unit 70213 switches to contact 2, and the signal is amplified by the power amplifier 70211 before being output. When transmitting a weak signal, the second switching unit 70213 switches to contact 3, at which time the power amplifier 70212 operates to amplify the signal.

[0118] The second transmission channel 7022 is used to process 5GHz signals. One end is connected to the TX1 port, and the other end is connected to the first end of the first switching unit. Similar to the first transmission channel 7021, the second transmission channel 7022 includes two sub-transmission paths, each equipped with a power amplifier 70221 and 70222, to amplify signals of different strengths. The second transmission channel 7022 also includes a third switching unit 70223 located between the two sub-transmission paths and the TX1 port, configured to select between the two sub-transmission paths based on different signal strengths.

[0119] The first receiving channel 7023 is configured to receive a 2.4GHz main WIFI signal. Its first end is connected to the RX0 port, and its other end is connected to the first end of the first switching unit. The first receiving channel 7023 includes a low noise amplifier 70231 and a first bypass switch 70232 connected in parallel with the low noise amplifier 70231.

[0120] When the signal on the first receiving channel 7023 is a low-intensity signal, it needs to be amplified. In this case, the first bypass switch 70232 is opened, and the signal on the first receiving channel 7023 is amplified by amplifier 70231 and then sent to the RF transceiver 701 through the RX1 port. When the signal on the first receiving channel is a medium-to-high-intensity signal, it does not need to be amplified. In this case, the first bypass switch 70232 is turned on, so that the signal on this channel can be directly output from the RX1 port.

[0121] The second receiving channel 7024 is used to receive the 5GHz main WIFI signal. Its first end is connected to the RX1 port, and its other end is connected to the first end of the first switching unit. The second receiving channel 7024 also includes the same low noise amplifier 70241 as the first receiving channel 7023, as well as a second bypass switch 70242 connected in parallel with the low noise amplifier 70241. Similar to the first receiving channel, by controlling the switching state of the second bypass switch 70242, signals of different strengths can be processed. For details, please refer to the description of the first receiving channel 7023 above.

[0122] The first end of the third transmission channel 7025 is connected to the BT port, and the other end is connected to the first end of the first switch unit, for transmitting Bluetooth signals.

[0123] The first switching unit is disposed between the first transmitting channel 7021, the second transmitting channel 7022, the first receiving channel 7023, the second receiving channel 7024, the third transmitting channel 7025, and the antenna port ANT. For example... Figure 6As shown, the first switching unit includes seven first terminals connected to the multiple channels mentioned above, and a second terminal connected to the antenna port ANT. By adjusting the connection state of multiple contacts in the first switching unit, the connection state between the multiple channels and the first antenna 706A can be switched.

[0124] In this system 70, the structure of the second radio frequency front-end module 703, its connection method with the corresponding third antenna 706C, and its control logic are similar to those of the first radio frequency front-end module 702, and will not be described again here.

[0125] It should be noted that the second radio frequency front-end module 703 also includes a first transmission channel 7031, which has the same structure as the first transmission channel 7021 in the first radio frequency front-end module 702. By adjusting the connection state of the first switch unit 7036, radio frequency signals can also be transmitted through the third antenna 706C.

[0126] The following is a detailed explanation of the working process and connection relationship of the first diversity receiving module 704 and the second diversity receiving module 705.

[0127] The first diversity receiving module 704 is connected to the second antenna 706B and is used to receive diversity signals of multiple frequency bands via the second antenna 706C. The second diversity receiving module 705 is connected to the fourth antenna 706D and is used to receive diversity MIMO signals of multiple frequency bands via the fourth antenna 706D. In this system, the structures of the first diversity receiving module 704 and the second diversity receiving module 705 and their connection methods with the corresponding antennas are similar. The following detailed description will only take the first diversity receiving module 704 as an example.

[0128] exist Figure 7 The first diversity receiving module 704 shown includes a first receiving channel 7041 and a second receiving channel 7042 for receiving signals of different frequency bands. The first receiving channel can be used, for example, to receive 2.4 GHz WIFI signals, while the second receiving channel 7042 is used to receive 5 GHz WIFI signals.

[0129] The first receiving channel 7041 includes a low-noise amplifier 70411 and a bypass switch 70412 connected in parallel with the low-noise amplifier 70411. The low-noise amplifier 70411 and the bypass switch 70412 in the receiving channel 7041 have the same function as the low-noise amplifier 70231 and the bypass switch 70232 in the first radio frequency front-end module 702 mentioned above, which will not be described again here.

[0130] The first diversity receiving module 704 also includes a combiner 7043. By adjusting the connection status of the combiner 7043, the second antenna 706B can be connected to the first receiving channel 7041 and the second receiving channel 7042 respectively, so as to input signals of different frequency bands to different receiving channels.

[0131] The following section uses a 2.4GHz Wi-Fi signal as an example to explain in detail the process of sending and receiving signals using this system 60.

[0132] emission

[0133] When transmitting a WIFI signal, the radio frequency transceiver 701 outputs the generated signal to be transmitted to the TX0 port of the first radio frequency front-end module 702.

[0134] The strength of the transmitted signal received at the TX0 port is determined. When the transmitted signal is a medium-strong signal, the second switching unit 70213 switches to contact 2, and the signal is amplified by the power amplifier 70211 and then output to the first switching unit. When the transmitted signal is a weak signal, the second switching unit 70213 switches to contact 3, and the signal is amplified by the power amplifier 70212 and then output to the first switching unit. The signal is then sent to the ANT port via contact 8 of the switching element 625. The signal output from the ANT port is filtered by the first filter 707A and then transmitted from the first antenna 706A.

[0135] As mentioned earlier, the second radio frequency front-end module 703 also includes a first transmission channel 7031. By adjusting the switching state of the first switching unit 7036 in the second radio frequency front-end module 703, the third antenna 706C can also transmit radio frequency signals.

[0136] When transmitting a Bluetooth signal, the RF transceiver 701 outputs the generated signal to be transmitted to the BT port of the first RF front-end module 702, controls the contacts 4 and 8 of the first switching unit to be turned on, and outputs the Bluetooth signal to the ANT port; thus, the first antenna 706A can be used to transmit the Bluetooth signal.

[0137] Alternatively, the second RF front-end module 703 can be used to transmit Bluetooth signals through the third antenna 706C. For details, please refer to the description above, which will not be repeated here.

[0138] Main set reception

[0139] When receiving the main radio frequency signal, the contacts 8 and 3 of the first switching unit are connected, so that the first antenna 706A is connected to the first receiving channel 7023.

[0140] The received signal is input through the first antenna 706A, passes through the first filter 707A and the ANT port of the first radio frequency front-end module 702 in sequence, and enters the first receiving channel 7023.

[0141] When the received signal is strong, no amplification is required. The first bypass switch 70232 is turned on, and the received signal is transmitted to the RX0 port via the bypass switch, and then sent to the RF transceiver 701 via the RX0 port. When the received signal is weak, amplification is required. In this case, the first bypass switch 70232 is turned off, so that the received signal is amplified by the low-noise amplifier 70231 and then sent to the RF transceiver 701 via the RX0 port, so that the RF transceiver 701 can further process the received signal.

[0142] Diversity reception

[0143] The second antenna 706B is used to receive diversity signals. When the frequency of the diversity signal is 2.4 GHz, the combiner 7043 is adjusted to connect the second antenna 706B with the first receiving channel 7041 of the first diversity receiving module 704. The low-noise amplifier 70411 and the bypass switch 70412 in the first receiving channel 7041 are used to further process the weak and strong signals. The processed signals are then sent to the radio frequency transceiver 701, thereby achieving the reception of the diversity signal.

[0144] Main MIMO reception

[0145] The reception of the main MIMO signal is achieved by the third antenna 706C and the second radio frequency front-end module 703. The specific implementation method is the same as the main radio frequency signal reception method based on the first antenna 706A and the first radio frequency front-end module 702 mentioned above, which can be referred to in the above description and will not be repeated here.

[0146] Diversity MIMO reception

[0147] The reception of diversity MIMO signals is achieved by the fourth antenna 706D and the second diversity receiving module 705. The specific implementation method is the same as that for receiving diversity radio frequency signals based on the second antenna 706B and the first diversity receiving module 704 mentioned above, and will not be described again here.

[0148] It should be noted that the above text refers to... Figure 7 The description of the operation of the radio frequency system 70 is based on a 2.4GHz WIFI signal. When the radio frequency system 70 processes signals at frequencies of 5GHz and above, the main difference lies in the different multiple transmission channels and receiving channels used. Its principle and operation are similar to those described above, and will not be repeated here.

[0149] The RF system 70 also includes a coupler unit. The coupler units in each RF front-end module have the same function in their respective RF front-end modules. Therefore, the following description focuses only on the first coupler 70271 in the first RF front-end module 702.

[0150] Please continue reading. Figure 7 The first coupler 70271 is disposed between the contact 8 of the first switching unit and the ANT port to detect the transmit power at the ANT port. The output of the first coupler is connected to the CPLOUT port of the first RF front-end module 702 to output the detection result.

[0151] In this system, the output terminals of multiple couplers in each RF front-end module are output through their respective CPLOUT ports and connected to multiple first terminals of the fourth switching unit 708. The second terminal of the switching unit 708 is connected to the RF transceiver 701 to send the detection results to the RF transceiver.

[0152] The fourth switching unit 708 is a single-pole double-throw (SPDT) switch. According to the working status of multiple antennas, the conduction mode of the contacts in the switching element 708 is adjusted so that the transmission power of different antennas is sent to the radio frequency front-end module 701 through the same port.

[0153] To further improve the integration of devices in a radio frequency system, this application also provides a radio frequency system.

[0154] Figure 8 It is an application of the above text Figure 5 The diagram shows a schematic structural diagram of the radio frequency system 80 of the radio frequency front-end module. Figure 8 The radio frequency system 80 includes: a radio frequency transceiver 801, a radio frequency front-end module 802, and an antenna array 803.

[0155] The antenna array 803 includes a first antenna 803A, a second antenna 803B, a third antenna 803C, and a fourth antenna 803D. All four antennas are connected to the radio frequency front-end module 802 and are used for receiving and transmitting main signals, receiving diversity signals, receiving main MIMO signals, and receiving diversity MIMO signals, respectively.

[0156] The radio frequency transceiver 801 includes multiple ports that are connected to the radio frequency front-end module 802, through which signals are transmitted and received.

[0157] The radio frequency front-end module 802 includes a first transmitting channel 8021, a second transmitting channel 8022, multiple receiving channels 8023A, ... 8023H, a third transmitting channel 8024, and a first switching unit 8025.

[0158] The first transmission channel 8021 and the second transmission channel 8022 are used to transmit 2.4GHz and 5GHz WIFI signals, respectively. The first ends of the first transmission channel 8021 and the second transmission channel 8022 are connected to the radio frequency transceiver 801 through the TX0 and TX1 ports, respectively, and the second ends are connected to the first end of the first switching unit 8025. The specific structure of the two transmission channels is the same as that of the transmission channels in the radio frequency system 70 mentioned above, and will not be described again here.

[0159] Receiving channels 8023A and 8023B are used to receive the main and diversity signals of the first frequency band through the first antenna 803A and the second antenna 803B, respectively. Correspondingly, the receiving channels 8023E and 8023F are used to receive the main and diversity signals of the second frequency band, respectively.

[0160] The receiving channels 8023C and 8023D are used to receive the main MIMO and diversity MIMO signals of the first frequency band through the third antenna 803C and the fourth antenna 803D, respectively. The receiving channels 8023G and 8023H are used to receive the main MIMO and diversity MIMO signals of the corresponding second frequency band.

[0161] The aforementioned receiving channels all include low-noise amplifiers and bypass switches, and their operating principles are the same as those of the receiving channels described earlier. (See also...) Figure 8 As described above, it will not be repeated here.

[0162] It should also be noted that, compared with the previous text Figure 7 Similar to the radio frequency system shown, in this radio frequency system 80, the second antenna 803B can also be used for transmitting and receiving main signals. That is to say, the first antenna 803A and the second antenna 803B are actually equivalent. Therefore, the first switching unit 8025 in the radio frequency front-end module 802 is provided with two second terminals, which are connected to the first antenna and the second antenna respectively through two antenna ports ANT1 and ANT2. At the same time, the receiving channels 8023A, 8023B, 8023E and 8023F corresponding to the first antenna 803A and the second antenna 803B are all connected to the first terminal of the first switching unit 8025. Thus, by adjusting the connection state of the contacts of the switching unit 8025, the connection relationship between the first antenna and the second antenna and the transmitting and receiving channels can be flexibly adjusted.

[0163] The first end of the third transmission channel 8024 is connected to the BT port, and the other end is connected to the first end of the first switching unit 8025, for transmitting Bluetooth signals.

[0164] The first switching unit 8025 is disposed between the first transmitting channel 8021, the second transmitting channel 8022, the receiving channels 8023A, 8023B, 8023E, and 8023F, and the third transmitting channel 8024, and the antenna ports ANT1 and ANT2. Figure 9 As shown, the first switching unit 8025 is a double-pole nine-throw (DP9T) switch, including nine first terminals connected to the aforementioned multiple channels and second terminals connected to antenna ports ANT1 and ANT2 respectively. By adjusting the connection state of multiple contacts in the first switching unit 8025, the connection state between the aforementioned multiple channels and antenna ports ANT1 and ANT2 can be switched.

[0165] The following section will use a 2.4GHz Wi-Fi signal as an example to explain in detail the process of sending and receiving signals using this system 80.

[0166] emission

[0167] When transmitting a WIFI signal, the RF transceiver 801 outputs the generated transmission signal to the TX0 port of the RF front-end module 802.

[0168] The strength of the transmitted signal received at the TX0 port is determined. Based on the signal strength, the state of the bypass switch on the first transmit channel 8021 is adjusted. The signal has been processed and sent to the ANT1 port via contact 10 of the first switch unit 8025. After filtering by the first filter 804A, it is transmitted through the first antenna 803A.

[0169] When transmitting Bluetooth signals, the RF transceiver 801 outputs the generated transmission signal to the BT port of the RF front-end module 802, controls the contacts 5 and 10 of the first switching unit 8025 to be turned on, and outputs the Bluetooth signal to the ANT1 port, so that the first antenna 803A can be used to transmit Bluetooth signals.

[0170] take over

[0171] Radio frequency system 80 is similar to radio frequency system 70 described above when receiving signals.

[0172] The 2.4GHz main signal received by the first antenna 803A is sent to the ANT1 port of the RF front-end module 802 through the first filter 804A, which controls the contacts 10 and 3 of the first switching unit 8025 to be turned on, so that the received signal is output from the RX0 port to the RF transceiver 801 after passing through the receiving channel 8023A.

[0173] The transmission path of the diversity signal received by the second antenna 803B is as follows: second antenna 803B - second filter 804B - ANT2 port - contacts 11 and 4 of the first switching unit 8025 - receiving channel 8023B - RX1 port - RF transceiver 801.

[0174] The transmission path of the master MIMO signal received by the third antenna 803C is as follows: third antenna 803C - third filter 804C - combiner 805A - RX2 IN port - receive channel 8023C - RX2 port - RF transceiver 801.

[0175] The transmission path of the diversity MIMO signal received by the 803D on the fourth day is as follows: fourth antenna 803D - fourth filter 804D - combiner 805A - RX3IN port - receiver channel 8023D - RX3 port - RF transceiver 801.

[0176] The above description uses the reception and transmission of 2.4GHz WIFI as an example. The transmission path for transmitting and receiving WIFI signals at frequencies of 5GHz and above is as follows.

[0177] The first antenna 803A transmits a 5GHz signal: RF transceiver 801 - second transmission channel 8022 - contacts 10 and 6 or 7 of the first switching unit 8025 - ANT1 port - first filter 804A - first antenna 803A.

[0178] The first antenna 803A receives the 5GHz master signal: First antenna 803A - First filter 804A - ANT1 port - Contact 10 and contact 8 of the first switching unit 8025 - Receive channel 8023E - RX4 port - RF transceiver 801.

[0179] The second antenna 803B receives the 5GHz diversity signal: Second antenna 803B - Second filter 804B - ANT2 port - Contacts 10 and 9 of the first switching unit 8025 - Receive channel 8023F - RX5 port - RF transceiver 801.

[0180] The third antenna 803C receives the 5GHz master MIMO signal: Third antenna 803C - Third filter 804C - Combiner 805A - RX6IN port - Receive channel 8023G - RX6 port - RF transceiver 801.

[0181] The fourth antenna 803D receives 5GHz diversity MIMO signals: Fourth antenna 803D - Fourth filter 804D - Combiner 805B - ​​RX7IN port - Receive channel 8023H - RX7 port - RF transceiver 801.

[0182] The RF system 80 also includes a coupler. Please continue reading. Figure 7 The radio frequency system 80 includes a first coupler 8026A and a second coupler 8026B, which are used to detect the transmit power of antenna ports ANT1 and ANT2.

[0183] exist Figure 8 In the radio frequency system shown, the first coupler 8026A is disposed between the contact 10 of the first switching unit 8025 and the ANT1 port, and is used to detect the transmit power of the ANT1 port; the second coupler 8026B is disposed between the contact 11 of the first switching unit 8025 and the ANT2 port, and is used to detect the transmit power of the ANT2 port.

[0184] The output terminals of the first coupler 8026A and the second coupler 8026B are respectively connected to the CPLOUT1 port and CPLOUT2 port of the first radio frequency front-end module 802 to output the detection results.

[0185] The output ports of multiple couplers are connected to multiple first terminals of the fourth switching unit 806, and the second terminal of the fourth switching unit 806 is connected to the radio frequency transceiver 801 to send the detection result to the radio frequency transceiver 801.

[0186] The fourth switching unit 806 is a single-pole double-throw switch. According to the working status of multiple antennas, the conduction mode of the contacts in the switching element 806 is adjusted so that the transmission power of different antennas can be sent to the radio frequency front-end module 801 through the same port.

[0187] In the RF system 80, the transmit and receive channels of all antennas in the same antenna array are integrated into the same RF front-end module, thereby improving the utilization of chip area and the concentration of components.

[0188] However, this system still contains units such as combiners located outside the RF front-end module. To further improve the integration of this RF system, embodiments of this application also provide an RF system, such as... Figure 9 As shown.

[0189] Figure 9 The main difference between the radio frequency system 90 shown and the radio frequency system 80 mentioned above is that:

[0190] The first switching unit in the RF front-end module is combined with the external combiner into a single switching unit, i.e. Figure 9The first switching unit 9025 is a four-pole thirteen-throw (4P13T) switch. Thirteen first terminals are connected to each channel, and four second terminals are connected to ports ANT1, ANT2, ANT3, and ANT4, respectively. By controlling the conduction state of the contacts at both ends of the first switching unit 9025, it is possible to transmit signals using multiple antennas and simultaneously receive signals from four antennas using four receiving channels.

[0191] The addition of ANT3 and ANT4 ports increases the number of couplers in the coupler unit, therefore the fourth switching unit 905, used to connect multiple couplers and RF transceivers, is replaced by... Figure 8 The single-pole double-throw switch was changed to a single-pole four-throw switch, with the four second terminals connected to couplers at the four antenna ports respectively.

[0192] The structure and specific workflow of other parts of the RF system 90 can be found in the descriptions of the RF system 70 and RF system 80 above, and will not be repeated here.

[0193] Figure 10 This is a schematic structural diagram of a radio frequency system provided in an embodiment of this application. The radio frequency system may be, for example, a... Figures 7-9 Radio frequency system in.

[0194] Figure 10 The radio frequency system 100 includes:

[0195] The antenna array 101 supports multiple-input multiple-output (MIMO) and is used for receiving and transmitting radio frequency (RF) signals. The antenna array 101 includes multiple antennas, such as those described above. Figures 7-9 Multiple antennas are shown in any of the embodiments.

[0196] The radio frequency transceiver 102 can be used to process radio frequency signals. The radio frequency transceiver 102 can control the reception and transmission of radio frequency signals. The radio frequency signal can be any wireless communication signal, for example, it can be a Bluetooth signal or a Wi-Fi signal. The radio frequency signal can include multiple different sub-signals. As an example, the radio frequency signal can include a first sub-signal and a second sub-signal, where the first sub-signal can be a Wi-Fi 2.4GHz signal and the second sub-signal can be a Wi-Fi 5GHz signal.

[0197] One or more radio frequency front-end modules 103A,...,103N are disposed between the radio frequency transceiver 102 and the antenna array 101. The radio frequency front-end module 103 can be the radio frequency front-end module in any of the embodiments described above.

[0198] The above-mentioned one or more radio frequency front-end modules include a first radio frequency front-end module 103A, which includes:

[0199] A first antenna port is connected to a first antenna in the antenna array; a first transmit port, a second transmit port, a first receive port, and a second receive port are connected to the radio frequency transceiver; a first switching unit includes multiple first terminals and second terminals; a first transceiver circuit is used to transmit and / or receive radio frequency signals in a first frequency band, including a first transmit channel and a first receive channel; a second transceiver circuit is used to generate and / or receive radio frequency signals in a second frequency band, including a second transmit channel and a second receive channel.

[0200] The first transmitting channel, the second transmitting channel, the first receiving channel, and the first receiving channel are connected one-to-one to the first transmitting port, the second transmitting port, the first receiving port, and the second receiving port, respectively, and the other end is connected one-to-one to the plurality of first ends; the second end of the first switching unit is connected to the first antenna port.

[0201] The first switch is configured to control the connection between the second terminal and the plurality of first terminals to switch the connection between the first antenna port and the plurality of channels, so as to use the first antenna to transmit or receive radio frequency signals in the first frequency band or the second frequency band.

[0202] In some embodiments, the radio frequency system includes two first radio frequency front-end modules; the first antenna ports of the two first radio frequency front-end modules are respectively connected to the first antenna and the third antenna of the antenna array; the two first radio frequency front-end modules are used to transmit radio frequency signals of the first frequency band or the second frequency band through the first antenna and / or the second antenna, and to receive the main signal and main MIMO signal of the radio frequency signals of the first frequency band and the second frequency band through the first antenna and the second antenna, respectively.

[0203] The radio frequency system further includes two first receiving units and two second receiving units. One end of each of the two first receiving units is connected to the radio frequency transceiver, and the other end is connected to the second antenna and the fourth antenna of the antenna array, respectively. One end of each of the two second receiving units is connected to the radio frequency transceiver, and the other end is connected to the second antenna and the fourth antenna, respectively. The two first receiving units are respectively used to receive diversity signals and diversity MIMO signals of the radio frequency signal in the first frequency band through the second antenna and the fourth antenna. The two second receiving units are respectively used to receive diversity signals and diversity MIMO signals of the radio frequency signal in the second frequency band through the second antenna and the fourth antenna.

[0204] In some embodiments, the first radio frequency front-end module includes two first receiving ports and two second receiving ports, connected to the radio frequency transceiver; the first radio frequency front-end also includes a second antenna port, connected to the second antenna in the antenna array; the first transceiver circuit includes two first receiving channels, respectively used to receive the main signal and diversity signal of the radio frequency signal in the first frequency band, one end of each of the two first receiving channels is connected to the two first receiving ports, and the other end is connected to the two first terminals of the first switching unit; the second transceiver circuit includes two second receiving channels, respectively used to receive the main signal and diversity signal of the radio frequency signal in the second frequency band, one end of each of the two second receiving channels is connected to the two second receiving ports, and the other end is connected to the two first terminals of the first switching unit; the first switching unit includes two second terminals, respectively connected to the first antenna port and the second antenna port.

[0205] In some embodiments, the first RF front-end module further includes: two third receiving ports and two fourth receiving ports connected to the RF transceiver; a first input port, a second input port, a third input port, and a fourth input port, wherein the first input port and the third input port are connected to the third antenna in the antenna array, and the second input port and the fourth input port are connected to the fourth antenna in the antenna array; two third receiving channels, one end of which is connected to the two third receiving ports respectively, and the other end of which is connected to the first input port and the second input port respectively, for receiving the main MIMO signal and diversity MIMO signal of the first frequency band RF signal through the third antenna respectively; and two fourth receiving channels, one end of which is connected to the two fourth receiving ports respectively, and the other end of which is connected to the third input port and the fourth input port respectively, for receiving the main MIMO signal and diversity MIMO signal of the second frequency band RF signal through the fourth antenna respectively.

[0206] In some embodiments, the first radio frequency front-end module includes: four first receiving ports and four second receiving ports connected to the radio frequency transceiver; a second antenna port, a third antenna port, and a fourth antenna port connected to the second antenna, the third antenna, and the fourth antenna in the antenna array, respectively; the first transceiver circuit includes four first receiving channels, respectively used to receive the main signal, diversity signal, main MIMO signal, and diversity MIMO signal of the first frequency band radio frequency signal through the first antenna, the second antenna, the third antenna, and the fourth antenna; the second transceiver circuit includes four second receiving channels, respectively used to receive the main signal, diversity signal, main MIMO signal, and diversity MIMO signal of the first frequency band radio frequency signal through the first antenna, the second antenna, the third antenna, and the fourth antenna. The first switching unit receives the main signal, diversity signal, main MIMO signal, and diversity MIMO signal of the second frequency band radio frequency signal from the fourth antenna. The first switching unit includes four second terminals. One end of each of the four first receiving channels is connected to one of the four first receiving ports, and the other end is connected to one of the four first terminals of the first switching unit. One end of each of the four second receiving channels is connected to one of the four second receiving ports, and the other end is connected to one of the four first terminals of the first switching unit. The four second terminals of the first switching unit are connected to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port, respectively.

[0207] In some embodiments, the first radio frequency front-end module further includes a third transmit port connected to the radio frequency transceiver; the first transceiver circuit further includes a third transmit channel connected to the third transmit port and a first segment of the first switch, for transmitting Bluetooth signals through at least one antenna in the antenna array.

[0208] In some embodiments, the first transmission channel includes: a first sub-transmission channel including a first power amplifier for amplifying medium-to-high power radio frequency signals; a second sub-transmission channel including a second power amplifier for amplifying low power radio frequency signals; and a second switching unit including a third terminal and two fourth terminals, wherein the third terminal is connected to the first transmission port, and the two fourth terminals are respectively connected to the input terminals of the first power amplifier and the second power amplifier.

[0209] The second transmission channel includes: a third sub-transmission channel, including a third power amplifier for amplifying medium-to-high power radio frequency signals; a fourth sub-transmission channel, including a fourth power amplifier for amplifying low-power radio frequency signals; and a third switching unit, including a fifth terminal and two sixth terminals, wherein the fifth terminal is connected to the second transmission port, and the two sixth terminals are respectively connected to the input terminals of the third power amplifier and the fourth power amplifier; and the output terminals of the third power amplifier and the fourth power amplifier are respectively connected to the two first terminals of the first switching unit.

[0210] In some embodiments, both the first receiving channel and the second receiving channel include: a first low-noise amplifier for amplifying the received radio frequency signal; and a first bypass switch connected in parallel with the first low-noise amplifier.

[0211] The first bypass switch is configured such that when the received radio frequency signal is a low-intensity signal, the first bypass switch is turned off, and when the received radio frequency signal is a medium-to-high-intensity signal, the first bypass switch is turned on.

[0212] In some embodiments, both the third receiving channel and the fourth receiving channel include: a second low-noise amplifier for amplifying the received radio frequency signal; and a second bypass switch connected in parallel with the second low-noise amplifier.

[0213] The second bypass switch is configured such that when the received radio frequency signal is a low-intensity signal, the second bypass switch is open, and when the received radio frequency signal is a medium-to-high-intensity signal, the second bypass switch is open.

[0214] In some embodiments, the first radio frequency front-end module further includes: a first coupler port connected to the radio frequency transceiver; and a first coupler disposed between a second terminal of the first switching unit and the first antenna port to detect the transmit power of the first antenna port.

[0215] The output of the first coupler is connected to the first coupler port to transmit the transmit power of the first antenna port to the radio frequency transceiver.

[0216] The radio frequency system includes a fourth switching unit, comprising a first terminal and two second terminals. The first terminal is connected to the radio frequency transceiver, and the two second terminals are respectively connected to the first coupler ports of the two first radio frequency front-end modules. This fourth switching unit may, for example, be... Figure 7 The fourth switch unit 705 in the middle.

[0217] In some embodiments, the first RF front-end module further includes: a first coupler port and a second coupler port, connected to the RF transceiver; the first coupler and the second coupler are respectively disposed between a second terminal of the first switching unit and the first antenna port and the second antenna port, to detect the transmit power of the first antenna port and the second antenna port respectively; the output terminals of the first coupler and the second coupler are connected one-to-one to the first coupler port and the second coupler port, to transmit the transmit power of the first antenna port and the second antenna port to the RF transceiver.

[0218] The radio frequency system includes a fourth switching unit, comprising a first terminal and two second terminals. The first terminal is connected to the radio frequency transceiver, and the two second terminals are respectively connected to the first coupler and the second coupler. This fourth switching unit may be, for example, a... Figure 8 The fourth switch unit 806 in the middle.

[0219] In some embodiments, the first radio frequency front-end module further includes: a first coupler port, a second coupler port, a third coupler port, and a fourth coupler port, which are connected to the radio frequency transceiver; the first coupler, the second coupler, the third coupler, and the fourth coupler are respectively disposed on the four radio frequency paths between the four second terminals of the first switching unit and the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port.

[0220] The output terminals of the first coupler, the second coupler, the third coupler, and the fourth coupler are connected one-to-one to the ports of the first coupler, the second coupler, the third coupler, and the fourth coupler, respectively, to transmit the transmit power of the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port to the radio frequency transceiver.

[0221] The radio frequency system further includes a fourth switching unit, comprising a first terminal and four second terminals. The first terminal is connected to the radio frequency transceiver, and the four second terminals are respectively connected to the first coupler port, the second coupler port, the third coupler port, and the fourth coupler port. This fourth switching unit may be, for example, a... Figure 9 The fourth switch unit 905 in the middle.

[0222] In some implementations, the radio frequency signal of the first frequency band includes a 2.4 GHz WIFI signal and / or a Bluetooth signal, and the radio frequency signal of the second frequency band includes a 5 GHz and / or 6 GHz WIFI signal.

[0223] Figure 11This application also provides a schematic structural diagram of an electronic device 110 according to an embodiment. The electronic device 110 includes a radio frequency system 111, which can be the radio frequency system described in any of the foregoing embodiments.

[0224] Figure 12 This is a schematic structural diagram of an electronic device 120 provided in another embodiment of this application. The electronic device 120 includes a radio frequency front-end module 121, which can be the radio frequency front-end module described in any of the embodiments above.

[0225] This application also provides a computer-readable storage medium having executable code stored thereon, which, when executed, enables the implementation of the method described above.

[0226] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any other combination. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0227] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments of this application can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0228] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0229] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0230] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0231] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A radio frequency (RF) front-end module, applied in an RF system, the RF system comprising an RF transceiver and a multiple-input multiple-output (MIMO) antenna array, the RF front-end module being connected between the RF transceiver and the antenna array, characterized in that, include: The first antenna port is used to connect to the first antenna in the antenna array; The first transmit port, the second transmit port, the first receive port, and the second receive port are used to connect to the radio frequency transceiver; The first switching unit includes multiple first terminals and second terminals; The first transceiver circuit is used to transmit and / or receive radio frequency signals in the first frequency band, including a first transmitting channel and a first receiving channel; The second transceiver circuit is used to transmit and / or receive radio frequency signals in the second frequency band, including a second transmit channel and a second receive channel; The first transmitting channel, the second transmitting channel, the first receiving channel, and the first receiving channel are connected one-to-one with the first transmitting port, the second transmitting port, the first receiving port, and the second receiving port, respectively, and the other end is connected one-to-one with the plurality of first ends; The second end of the first switching unit is connected to the first antenna port. The first switching unit is configured to control the connection between the second end and the plurality of first ends to switch the connection between the first antenna port and the plurality of channels, so as to use the first antenna to transmit or receive radio frequency signals of the first frequency band or the second frequency band. The first transmission channel includes: The first sub-transmit channel includes a first power amplifier for amplifying medium-to-high power radio frequency signals; The second sub-transmit channel includes a second power amplifier for amplifying low-power radio frequency signals; The second switching unit includes a third terminal and two fourth terminals. The third terminal is connected to the first transmitting port, and the two fourth terminals are respectively connected to the input terminals of the first power amplifier and the second power amplifier. The second transmission channel includes: The third sub-transmit channel includes a third power amplifier for amplifying medium-to-high power radio frequency signals; The fourth sub-transmit channel includes a fourth power amplifier for amplifying low-power radio frequency signals; The third switching unit includes a fifth terminal and two sixth terminals. The fifth terminal is connected to the second transmitting port, and the two sixth terminals are respectively connected to the input terminals of the third power amplifier and the fourth power amplifier. The output terminals of the third power amplifier and the fourth power amplifier are respectively connected to the two first terminals of the first switching unit.

2. The radio frequency front-end module according to claim 1, characterized in that, The radio frequency front-end module includes two first receiving ports and two second receiving ports; The radio frequency front-end module also includes: The second antenna port is used to connect to the second antenna in the antenna array; The first transceiver circuit includes two first receiving channels, which are respectively used to receive the main signal and diversity signal of the radio frequency signal of the first frequency band through the first antenna and the second antenna. One end of the two first receiving channels is connected to the two first receiving ports respectively, and the other end is connected to the two first terminals of the first switching unit. The second transceiver circuit includes two second receiving channels, which are respectively used to receive the main signal and diversity signal of the radio frequency signal in the second frequency band. One end of each of the two second receiving channels is connected to two second receiving ports, and the other end is connected to two first terminals of the first switching unit. The first switching unit includes two second terminals, which are respectively connected to the first antenna port and the second antenna port.

3. The radio frequency front-end module according to claim 2, characterized in that, Also includes: Two third receiving ports and two fourth receiving ports are used to connect to the radio frequency transceiver; The antenna array includes a first input port, a second input port, a third input port, and a fourth input port, wherein the first input port and the third input port are used to connect to the third antenna in the antenna array, and the second input port and the fourth input port are used to connect to the fourth antenna in the antenna array. Two third receiving channels, one end of which is connected to the two third receiving ports respectively, and the other end of which is connected to the first input port and the second input port respectively, are used to receive the main MIMO signal and diversity MIMO signal of the first frequency band radio frequency signal through the third antenna and the fourth antenna respectively; Two fourth receiving channels, one end of which is connected to the two fourth receiving ports respectively, and the other end of which is connected to the third input port and the fourth input port respectively, are used to receive the main MIMO signal and diversity MIMO signal of the second frequency band radio frequency signal through the third antenna and the fourth antenna respectively.

4. The radio frequency front-end module according to claim 1, characterized in that, The radio frequency front-end module includes: Four first receiving ports and four second receiving ports are used to connect to the radio frequency transceiver; The radio frequency front-end module also includes: The second antenna port, the third antenna port, and the fourth antenna port are respectively used to connect to the second antenna, the third antenna, and the fourth antenna in the antenna array; The first transceiver circuit includes four first receiving channels, which are respectively used to receive the main signal, diversity signal, main MIMO signal and diversity MIMO signal of the first frequency band radio frequency signal through the first antenna, the second antenna, the third antenna and the fourth antenna; The second transceiver circuit includes four second receiving channels, which are respectively used to receive the main signal, diversity signal, main MIMO signal and diversity MIMO signal of the second frequency band radio frequency signal through the first antenna, the second antenna, the third antenna and the fourth antenna; The first switching unit includes four second terminals; One end of each of the four first receiving channels is connected to the four first receiving ports, and the other end is connected to the four first terminals of the first switching unit. One end of each of the four second receiving channels is connected to the four second receiving ports, and the other end is connected to the four first ends of the first switching unit. The four second terminals of the first switching unit are respectively connected to the first antenna port, the second antenna port, the third antenna port and the fourth antenna port.

5. The radio frequency front-end module according to any one of claims 1-4, characterized in that, Also includes: The third transmit port is used to connect to the radio frequency transceiver; The first transceiver circuit further includes a third transmission channel, which is connected to the third transmission port and a first end of the first switching unit, for transmitting Bluetooth signals.

6. The radio frequency front-end module according to any one of claims 1-4, characterized in that, Both the first receiving channel and the second receiving channel include: The first low-noise amplifier is used to amplify the received radio frequency signal; The first bypass switch is connected in parallel with the first low-noise amplifier; The first bypass switch is configured such that when the received radio frequency signal is a low-intensity signal, the first bypass switch is turned off, and when the received radio frequency signal is a medium-to-high-intensity signal, the first bypass switch is turned on.

7. The radio frequency front-end module according to claim 3, characterized in that, Both the third receiving channel and the fourth receiving channel include: The second low-noise amplifier is used to amplify the received radio frequency signal; The second bypass switch is connected in parallel with the second low-noise amplifier; The second bypass switch is configured such that when the received radio frequency signal is a low-intensity signal, the second bypass switch is open, and when the received radio frequency signal is a medium-to-high-intensity signal, the second bypass switch is open.

8. The radio frequency front-end module according to claim 1, characterized in that, Also includes: The first coupler port is used to connect to the radio frequency transceiver; A first coupler is disposed between a second terminal of the first switching unit and the first antenna port to detect the transmit power of the first antenna port; The output of the first coupler is connected to the first coupler port to transmit the transmit power of the first antenna port to the radio frequency transceiver.

9. The radio frequency front-end module according to any one of claims 2-3, characterized in that, Also includes: The first coupler port and the second coupler port are used to connect to the radio frequency transceiver; The first coupler and the second coupler are respectively disposed between one of the second terminals of the first switching unit and the first antenna port and the second antenna port, so as to detect the transmission power of the first antenna port and the second antenna port respectively; The output terminals of the first coupler and the second coupler are connected one-to-one to the ports of the first coupler and the second coupler to transmit the transmit power of the first antenna port and the second antenna port to the radio frequency transceiver.

10. The radio frequency front-end module according to claim 4, characterized in that, Also includes: The first coupler port, the second coupler port, the third coupler port, and the fourth coupler port are used to connect to the radio frequency transceiver. The first coupler, the second coupler, the third coupler, and the fourth coupler are respectively disposed on the four radio frequency paths between the four second terminals of the first switching unit and the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port. The output terminals of the first coupler, the second coupler, the third coupler, and the fourth coupler are connected one-to-one to the ports of the first coupler, the second coupler, the third coupler, and the fourth coupler, respectively, to transmit the transmit power of the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port to the radio frequency transceiver.

11. The radio frequency front-end module according to any one of claims 1-4, characterized in that, The radio frequency signals in the first frequency band include 2.4 GHz WIFI signals and / or Bluetooth signals, and the radio frequency signals in the second frequency band include 5 GHz and / or 6 GHz WIFI signals.

12. A radio frequency system, characterized in that, include: Supports multiple-input multiple-output antenna arrays, including multiple antennas; Radio frequency transceiver; One or more radio frequency front-end modules are connected between the radio frequency transceiver and the antenna array, wherein the one or more radio frequency front-end modules include a first radio frequency front-end module; The first radio frequency front-end module includes: The first antenna port is connected to the first antenna in the antenna array; The first transmitting port, the second transmitting port, the first receiving port, and the second receiving port are connected to the radio frequency transceiver; The first switching unit includes multiple first terminals and second terminals; The first transceiver circuit is used to transmit and / or receive radio frequency signals in the first frequency band, including a first transmitting channel and a first receiving channel; The second transceiver circuit is used to transmit and / or receive radio frequency signals in the second frequency band, including a second transmit channel and a second receive channel; The first transmitting channel, the second transmitting channel, the first receiving channel, and the first receiving channel are connected one-to-one with the first transmitting port, the second transmitting port, the first receiving port, and the second receiving port, respectively, and the other end is connected one-to-one with the plurality of first ends; The second end of the first switching unit is connected to the first antenna port. The first switching unit is configured to control the connection between the second end and the plurality of first ends to switch the connection between the first antenna port and the plurality of channels, so as to use the first antenna to transmit or receive radio frequency signals of the first frequency band or the second frequency band. The first transmission channel includes: The first sub-transmit channel includes a first power amplifier for amplifying medium-to-high power radio frequency signals; The second sub-transmit channel includes a second power amplifier for amplifying low-power radio frequency signals; The second switching unit includes a third terminal and two fourth terminals. The third terminal is connected to the first transmitting port, and the two fourth terminals are respectively connected to the input terminals of the first power amplifier and the second power amplifier. The second transmission channel includes: The third sub-transmit channel includes a third power amplifier for amplifying medium-to-high power radio frequency signals; The fourth sub-transmit channel includes a fourth power amplifier for amplifying low-power radio frequency signals; The third switching unit includes a fifth terminal and two sixth terminals. The fifth terminal is connected to the second transmitting port, and the two sixth terminals are respectively connected to the input terminals of the third power amplifier and the fourth power amplifier. The output terminals of the third power amplifier and the fourth power amplifier are respectively connected to the two first terminals of the first switching unit.

13. The radio frequency system according to claim 12, characterized in that, The radio frequency system includes two of the first radio frequency front-end modules; The first antenna ports of the two first radio frequency front-end modules are respectively connected to the first antenna and the third antenna of the antenna array; The two first radio frequency front-end modules are used to transmit radio frequency signals of the first frequency band or the second frequency band through the first antenna and the second antenna, and to receive the main signal and main MIMO signal of the radio frequency signals of the first frequency band and the second frequency band through the first antenna and the second antenna, respectively. The radio frequency system further includes two first receiving units and two second receiving units. One end of each of the two first receiving units is connected to the radio frequency transceiver, and the other end is connected to the second antenna and the fourth antenna of the antenna array, respectively. One end of each of the two second receiving units is connected to the radio frequency transceiver, and the other end is connected to the second antenna and the fourth antenna, respectively. The two first receiving units are respectively used to receive the diversity signal and diversity MIMO signal of the radio frequency signal of the first frequency band through the second antenna and the fourth antenna; The two second receiving units are respectively used to receive diversity signals and diversity MIMO signals of the second frequency band radio frequency signals through the second antenna and the fourth antenna.

14. The radio frequency system according to claim 12, characterized in that, The first radio frequency front-end module includes: two first receiving ports and two second receiving ports, which are connected to the radio frequency transceiver; The first radio frequency front end also includes a second antenna port, which is connected to the second antenna in the antenna array; The first transceiver circuit includes two first receiving channels, which are respectively used to receive the main signal and diversity signal of the radio frequency signal of the first frequency band. One end of each of the two first receiving channels is connected to two first receiving ports, and the other end is connected to two first terminals of the first switching unit. The second transceiver circuit includes two second receiving channels, which are respectively used to receive the main signal and diversity signal of the radio frequency signal in the second frequency band. One end of each of the two second receiving channels is connected to two second receiving ports, and the other end is connected to two first terminals of the first switching unit. The first switching unit includes two second terminals, which are respectively connected to the first antenna port and the second antenna port.

15. The radio frequency system according to claim 14, characterized in that, The first radio frequency front-end module further includes: Two third receiving ports and two fourth receiving ports are connected to the radio frequency transceiver; The antenna array includes a first input port, a second input port, a third input port, and a fourth input port, wherein the first input port and the third input port are connected to the third antenna in the antenna array, and the second input port and the fourth input port are connected to the fourth antenna in the antenna array. Two third receiving channels, one end of which is connected to the two third receiving ports respectively, and the other end of which is connected to the first input port and the second input port respectively, are used to receive the main MIMO signal and diversity MIMO signal of the first frequency band through the third antenna; Two fourth receiving channels, one end of which is connected to the two fourth receiving ports respectively, and the other end of which is connected to the third input port and the fourth input port respectively, are used to receive the main MIMO signal and diversity MIMO signal of the second frequency band radio frequency signal through the fourth antenna.

16. The radio frequency system according to claim 12, characterized in that, The first radio frequency front-end module includes: Four first receiving ports and four second receiving ports are connected to the radio frequency transceiver; The second antenna port, the third antenna port, and the fourth antenna port are respectively connected to the second antenna, the third antenna, and the fourth antenna in the antenna array; The first transceiver circuit includes four first receiving channels, which are respectively used to receive the main signal, diversity signal, main MIMO signal and diversity MIMO signal of the first frequency band radio frequency signal through the first antenna, the second antenna, the third antenna and the fourth antenna; The second transceiver circuit includes four second receiving channels, which are respectively used to receive the main signal, diversity signal, main MIMO signal and diversity MIMO signal of the second frequency band radio frequency signal through the first antenna, the second antenna, the third antenna and the fourth antenna; The first switching unit includes four second terminals; One end of each of the four first receiving channels is connected to one of the four first receiving ports, and the other end is connected to one of the four first terminals of the first switching unit. One end of each of the four second receiving channels is connected to one of the four second receiving ports, and the other end is connected to one of the four first terminals of the first switching unit. The four second terminals of the first switching unit are respectively connected to the first antenna port, the second antenna port, the third antenna port and the fourth antenna port.

17. The radio frequency system according to any one of claims 12-16, characterized in that, The first radio frequency front-end module also includes a third transmit port, which is connected to the radio frequency transceiver; The first transceiver circuit further includes a third transmit channel connected to the third transmit port and a first end of the first switch unit, for transmitting Bluetooth signals through at least one antenna in the antenna array.

18. The radio frequency system according to any one of claims 12-16, characterized in that, Both the first receiving channel and the second receiving channel include: The first low-noise amplifier is used to amplify the received radio frequency signal; The first bypass switch is connected in parallel with the first low-noise amplifier; The first bypass switch is configured such that when the received radio frequency signal is a low-intensity signal, the first bypass switch is turned off, and when the received radio frequency signal is a medium-to-high-intensity signal, the first bypass switch is turned on.

19. The radio frequency system according to claim 15, characterized in that, Both the third receiving channel and the fourth receiving channel include: The second low-noise amplifier is used to amplify the received radio frequency signal; The second bypass switch is connected in parallel with the second low-noise amplifier; The second bypass switch is configured such that when the received radio frequency signal is a low-intensity signal, the second bypass switch is open, and when the received radio frequency signal is a medium-to-high-intensity signal, the second bypass switch is open.

20. The radio frequency system according to claim 13, characterized in that, The first radio frequency front-end module further includes: The first coupler port is connected to the radio frequency transceiver; A first coupler is disposed between a second terminal of the first switching unit and the first antenna port to detect the transmit power of the first antenna port; The output of the first coupler is connected to the first coupler port to transmit the transmit power of the first antenna port to the radio frequency transceiver; The radio frequency system includes a fourth switching unit, comprising a first terminal and two second terminals, wherein the first terminal is connected to the radio frequency transceiver, and the two second terminals are respectively connected to the first coupler ports of the two first radio frequency front-end modules.

21. The radio frequency system according to claim 14 or 15, characterized in that, The first radio frequency front-end module further includes: The first coupler port and the second coupler port are connected to the radio frequency transceiver; The first coupler and the second coupler are respectively disposed between one of the second terminals of the first switching unit and the first antenna port and the second antenna port, so as to detect the transmission power of the first antenna port and the second antenna port respectively; The output terminals of the first coupler and the second coupler are connected one-to-one to the ports of the first coupler and the second coupler to transmit the transmit power of the first antenna port and the second antenna port to the radio frequency transceiver; The radio frequency system includes a fourth switching unit, comprising a first terminal and two second terminals, wherein the first terminal is connected to the radio frequency transceiver, and the two second terminals are respectively connected to the first coupler and the second coupler.

22. The radio frequency system according to claim 16, characterized in that, The first radio frequency front-end module further includes: The first coupler port, the second coupler port, the third coupler port, and the fourth coupler port are connected to the radio frequency transceiver. The first coupler, the second coupler, the third coupler, and the fourth coupler are respectively disposed on the four radio frequency paths between the four second terminals of the first switching unit and the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port. The output terminals of the first coupler, the second coupler, the third coupler, and the fourth coupler are connected one-to-one to the ports of the first coupler, the second coupler, the third coupler, and the fourth coupler, respectively, to transmit the transmit power of the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port to the radio frequency transceiver. The radio frequency system further includes a fourth switching unit, comprising a first terminal and four second terminals, wherein the first terminal is connected to the radio frequency transceiver, and the four second terminals are respectively connected to the first coupler port, the second coupler port, the third coupler port, and the fourth coupler port.

23. The radio frequency system according to any one of claims 12-16, characterized in that, The radio frequency signals in the first frequency band include 2.4 GHz WIFI signals and / or Bluetooth signals, and the radio frequency signals in the second frequency band include 5 GHz and / or 6 GHz WIFI signals.

24. An electronic device, characterized in that, The electronic device includes: a radio frequency front-end module as claimed in any one of claims 1-11 and / or a radio frequency system as claimed in any one of claims 12-23.

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