CN111756388A - Radio frequency circuit and electronic equipment - Google Patents
Radio frequency circuit and electronic equipment Download PDFInfo
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- CN111756388A CN111756388A CN202010600195.9A CN202010600195A CN111756388A CN 111756388 A CN111756388 A CN 111756388A CN 202010600195 A CN202010600195 A CN 202010600195A CN 111756388 A CN111756388 A CN 111756388A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The application provides a radio frequency circuit and electronic equipment, radio frequency circuit includes: a radio frequency circuit, comprising: the radio frequency transceiver comprises a radio frequency transceiver, a first switch module, M radio frequency transceiver modules, a second switch module and M antennas; the radio frequency transceiver comprises a first frequency band transmitting port and a second frequency band transmitting port, the first frequency band transmitting port is used for transmitting first frequency band data, the second frequency band transmitting port is used for transmitting second frequency band data, the first frequency band transmitting port and the second frequency band transmitting port are respectively connected with the input end of the first switch module, the output end of the first switch module is connected with the M radio frequency transceiver modules, and the M radio frequency transceiver modules are connected with the M antennas through the second switch module. Therefore, when a certain radio frequency transceiving module is damaged, the first frequency band data and the second frequency band data can also transmit data through other radio frequency transceiving modules, and the stability of the radio frequency circuit is enhanced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a radio frequency circuit and an electronic device.
Background
Current users are demanding higher demands on the development of communication technologies, such as higher communication rates, lower network latency, greater connection capacity and traffic density. Currently, a plurality of antennas are usually included in the radio frequency circuit, and meanwhile, the transmission signal and the reception signal can be freely switched among the plurality of antennas according to needs.
However, in the actual using process, each frequency band data is pre-configured with a corresponding radio frequency transceiving module, so that when the radio frequency transceiving module is damaged, the frequency band data is easily failed to be transmitted, and therefore, when the radio frequency transceiving module is damaged, the frequency band data is poor in transmitting effect.
Disclosure of Invention
The embodiment of the application provides a radio frequency circuit and electronic equipment, so as to solve the problem that when a radio frequency transceiving module is damaged, the sending effect of frequency band data is poor.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a radio frequency circuit, including: the antenna comprises a radio frequency transceiver, a first switch module, M radio frequency transceiver modules, a second switch module and M antennas, wherein M is a positive integer;
the radio frequency transceiver comprises a first frequency band transmitting port and a second frequency band transmitting port, the first frequency band transmitting port is used for transmitting first frequency band data, the second frequency band transmitting port is used for transmitting second frequency band data, the first frequency band transmitting port and the second frequency band transmitting port are respectively connected with the input end of the first switch module, the output end of the first switch module is connected with the M radio frequency transceiver modules, and the M radio frequency transceiver modules are connected with the M antennas through the second switch module;
the first switch module is used for controlling the first frequency band transmitting port and/or the second frequency band transmitting port to be conducted with different radio frequency transceiving modules, and the second switch module is used for controlling different radio frequency transceiving modules to be conducted with different antennas.
In a second aspect, an embodiment of the present application provides an electronic device, including: the radio frequency circuit is described above.
In this application embodiment, owing to be provided with first switch module, thereby make first switch module switch between multiple state, thereby make first frequency channel transmission port and second frequency channel transmission port can the free choice corresponding transceiver module, thereby strengthened the flexibility of first frequency channel data and second frequency channel data transmission, and make when a certain radio frequency transceiver module is damaged, first frequency channel data and second frequency channel data can also be through other radio frequency transceiver modules data transmission, radio frequency circuit's stability has been strengthened.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an rf transceiver module in an rf circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another radio frequency circuit provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of another radio frequency circuit provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a radio frequency circuit provided in an embodiment of the present application, and as shown in fig. 1, the radio frequency circuit includes: the radio frequency transceiver comprises a radio frequency transceiver 10, a first switch module 20, M radio frequency transceiver modules 30, a second switch module 40 and M antennas 50, wherein M is a positive integer;
the radio frequency transceiver 10 includes a first frequency band transmitting port and a second frequency band transmitting port, the first frequency band transmitting port is used for transmitting first frequency band data, the second frequency band transmitting port is used for transmitting second frequency band data, the first frequency band transmitting port and the second frequency band transmitting port are respectively connected with an input end of the first switch module 20, an output end of the first switch module 20 is connected with the M radio frequency transceiver modules 30, and the M radio frequency transceiver modules 30 are connected with the M antennas 50 through the second switch module 40;
the first switch module 20 is configured to control the first frequency band transmitting port and/or the second frequency band transmitting port to be conducted with different rf transceiver modules 30, and the second switch module 40 is configured to control different rf transceiver modules 30 to be conducted with different antennas 50.
The specific types of the first frequency band data and the second frequency band data are not limited herein, for example: one of the first band data and the second band data may be N78, and the other may be N79.
The type of the first switch module 20 is not limited herein, and for example: the first switch module 20 may be a double-pole double-throw switch, or may also be a four-pole four-throw switch, or may also be a single-pole double-throw switch, and thus, since the type of the first switch module 20 is not limited, the first switch module 20 may also be switched between different states, so as to control at least one of the first frequency band transmitting port and the second frequency band transmitting port to be conducted with different rf transceiver modules 30.
For example: when the first switch module 20 is in the first state, the first frequency band transmitting port can be controlled to be conducted with the first radio frequency transceiving module; when the first switch module 20 is in the second state, the first frequency band transmitting port and the second radio frequency transceiving module can be controlled to be connected, the first radio frequency transceiving module and the second radio frequency transceiving module are different radio frequency transceiving modules, and meanwhile, because the first radio frequency transceiving module and the second radio frequency transceiving module both comprise power amplifiers, the purpose that the first radio frequency transceiving module can freely select the power amplifiers in the radio frequency transceiving module 30 can be achieved through switching of different states of the first switch module 20. In addition, in the first state or the second state, since the first frequency band transmitting port can be conducted with one rf transceiving module 30 through the first switch module 20, and the rf transceiving module 30 can be conducted with at least one antenna 50 through the second switch module 40, the transmission of the first frequency band data is more flexible.
In addition, when the first switch module 20 is in the third state, the first frequency band transmitting port and the first rf transceiving module can be controlled to be conducted, and the second frequency band transmitting port and the second rf transceiving module can be controlled to be conducted; when the first switch module 20 is in the fourth state, the first frequency band transmitting port and the second rf transceiving module can be controlled to be connected, and the second frequency band transmitting port and the first rf transceiving module are controlled to be connected. Therefore, the purpose of freely selecting the radio frequency transceiving module 30 for the first frequency band data and the second frequency band data can be achieved, and meanwhile, the purpose of transmitting the first frequency band data and the second frequency band data can be achieved simultaneously.
In addition, according to the different types of the first switch module 20, the first switch module 20 has a plurality of switching states, so that the conduction states between the first frequency band transmitting port and the radio frequency transceiving module 30 and the second frequency band transmitting port have a plurality of possibilities, which are not illustrated herein.
It should be noted that the second switch module 40 can also be switched between multiple states, so as to achieve the purpose of conducting between different rf transceiver modules 30 and different antennas, and specific switching processes are not described herein again, and reference may be made to the above description of the switching state of the first switch module 20.
When the first switch module 20 is switched between different states (for example, when the first switch module is switched between the first state and the second state), the second switch module 40 may be switched between different states, that is, it may be understood that: the first switch module 20 is switched among a plurality of states to control the rf transceiver 10 to be connected to different rf transceiver modules 30 through the first frequency band transmitting port or the second frequency band transmitting port, and the second switch module 40 is switched among a plurality of states to control different rf transceiver modules 30 to be connected to different antennas 50.
Therefore, the first frequency band transmitting port or the second frequency band transmitting port can be controlled to be communicated with the target radio frequency transceiving module, the target radio frequency transceiving module is communicated with the target antenna, and it needs to be explained that the target radio frequency transceiving module and the target antenna can be the radio frequency transceiving module and the antenna selected by a user, so that the antenna and the radio frequency transceiving module with poor performance can be switched, the problem that the antenna with poor performance cannot be switched can be solved, and the switching effect of the antenna is enhanced.
The structure of the present embodiment may also refer to the following expression, that is, the above structure may also be understood as the following structure:
the radio frequency transceiver 10 includes a first port (equivalent to a first frequency band transmitting port) and a second port (equivalent to a second frequency band transmitting port), the first port is used for data transmission in a first frequency band, the second port is used for data transmission in a second frequency band, the first port and the second port are respectively connected with an input end of the first switch module 20, an output end of the first switch module 20 is connected with the M radio frequency transceiver modules 30, and the M radio frequency transceiver modules 30 are electrically connected with the M antennas 50 through the second switch module 40;
the first switch module 20 is switched among a plurality of states to control the rf transceiver 10 to be connected to different rf transceiver modules 30 through the first port or the second port, and the second switch module 40 is switched among a plurality of states to control different rf transceiver modules 30 to be connected to different antennas 50.
The working principle of the embodiment of the application can be referred to as the following expression:
each rf transceiver module 30 may include a filter, and in the actual use process, data of each frequency band is generally transmitted by using the fixed rf transceiver module 30, for example: when the rf circuit is in the mode of 1T4R, only one frequency band data (e.g., N78 or N79) is transmitted through the rf transceiver module 30 corresponding to the frequency band, and other rf transceiver modules 30 are in an idle state, so that the rf transceiver module 30 corresponding to the frequency band data is in an operating state for a long time, and other rf transceiver modules 30 are in an idle state for a long time, which results in a large loss of the filter in the rf transceiver module 30 in the operating state for a long time, and thus the rf transceiver module 30 has a poor transmission effect on the frequency band data.
In the embodiment of the present application, the first switch module 20 can control the rf transceiver 10 to be conducted with different rf transceiver modules 30 through the first port or the second port, and the second switch module 40 can control different rf transceiver modules 30 to be conducted with different antennas 50, so that the first switch module 20 and the second switch module 40 can control the rf transceiver 10 to be conducted with different rf transceiver modules 30 and different antennas 50 through the first port or the second port, so that the antenna 50 with poor performance can be switched, the problem of unbalanced switching of the antenna 50 is solved, and the switching effect of the antenna 50 is enhanced.
For example: the rf circuit in this embodiment may support a 1T4R mode and a 2T4R mode, and when the rf circuit is in the 2T4R mode, a certain frequency band data may include two transmission signals (for example, N78 includes two signals, TX1 and TX2), and each signal corresponds to one rf transceiver module 30, that is, a Power Amplifier (PA) in the rf transceiver module 30 corresponding to TX1 may be PA1, and a power amplifier in the rf transceiver module 30 corresponding to TX2 may be referred to as PA 2. In this embodiment, the rf transceiver 10 can optionally select PA1 or PA2 through the first switch module 20, and antenna 1(ANT1) or antenna 2(ANT2) through the second switch module 40, PA1 or PA 2.
Similarly, the radio frequency circuit in this embodiment may simultaneously support transmission of data in two frequency bands, for example: in addition to supporting data transfer of N78, data transfer of N79 may also be supported. Of course, the expression of N79 can be referred to the corresponding expression of N78, and is not described herein again.
It should be noted that, the specific structure of the rf transceiver module 30 can be referred to as the following expression:
for example: referring to fig. 2, the rf transceiver module 30 includes a first control terminal 31, a second control terminal 32, a third control terminal 33 and a controller 34, the first control terminal 31 is electrically connected to the rf transceiver 10, the second control terminal 32 is electrically connected to the first switch module 20, the third control terminal 33 is electrically connected to the second switch module 40, the controller 34 is electrically connected to the first control terminal 31, the second control terminal 32 and the third control terminal 33, respectively, and the controller 34 is switched between a first target state and a second target state;
when the controller 34 is in the first target state, the first control terminal 31 is connected to the third control terminal 33, and the second control terminal 32 is disconnected from the third control terminal 33; when the controller 34 is in the second target state, the first control terminal 31 is disconnected from the third control terminal 33, and the second control terminal 32 is connected to the third control terminal 33.
As an optional embodiment, the controller 34 and the third control end 33 are electrically connected through a filter 35. As another alternative, the controller 34 is electrically connected to the first control terminal 31 through a low noise amplifier 36. In another alternative embodiment, the controller 34 is electrically connected to the second control terminal 32 through a power amplifier 37.
The low noise amplifier 36 is used for amplifying the received signal, and the power amplifier 37 is used for amplifying the transmitted signal.
It should be noted that the controller 34 may be a single-pole double-throw switch, so that the use cost is low and the control effect is reliable.
As an optional implementation manner, referring to fig. 3 and 4, M is four, the four radio frequency transceiver modules 30 include two first frequency band transceiver modules and two second frequency band transceiver modules, and the first switch module 20 controls the first frequency band transmitting port to be conducted with at least one first frequency band transceiver module or controls the second frequency band transmitting port to be conducted with at least one second frequency band transceiver module when in the target state.
The first band transmission port may refer to a port for transmitting a first band, and the second band transmission port may refer to a port for transmitting a second band. For example: referring to fig. 3 and 4, the first band transmission port may refer to a port for transmitting an N78 band, and the second band transmission port may refer to a port for transmitting an N79 band. Of course, the first band transmission port may also refer to a port for transmitting the N79 band, and the second band transmission port may refer to a port for transmitting the N78 band, which is not limited herein.
Therefore, the first switch module 20 can control the first frequency band transmitting port to be connected with at least one first frequency band transceiving module, or control the second frequency band transmitting port to be connected with at least one second frequency band transceiving module, and the first frequency band transmitting or the second frequency band transmitting can be controlled through the first switch module 20, so that the flexibility of the first frequency band transmitting or the second frequency band transmitting is enhanced.
As an optional implementation manner, the first frequency band transmission port includes a first transmission port and a second transmission port, and the second frequency band transmission port includes a third transmission port and a fourth transmission port;
the radio frequency circuit further includes four radio frequency receiving modules 60, and the radio frequency transceiver 10 further includes four first frequency band receiving ports and four second frequency band receiving ports;
the first frequency band receiving port comprises a first receiving port, a second receiving port, a third receiving port and a fourth receiving port, the first receiving port and the second receiving port are respectively connected with the second switch module 40 through one radio frequency receiving module 60, and the third receiving port and the fourth receiving port are respectively connected with one first frequency band transceiver module;
the second frequency band receiving port comprises a fifth receiving port, a sixth receiving port, a seventh receiving port and an eighth receiving port, the fifth receiving port and the sixth receiving port are respectively connected with the second switch module 40 through one radio frequency receiving module 60, and the seventh receiving port and the eighth receiving port are respectively connected with one second frequency band transceiver module.
The working principle of the present embodiment can be referred to as the following expression:
when four antennas 50 are connected to four first band receiving ports, respectively, and one first band transceiver module is connected to the first transmitting port (e.g., TX1 capable of transmitting N78) and the second transmitting port (e.g., TX2 capable of transmitting N78), respectively, 2T4R of the first band data is completed;
when four antennas 50 are connected to four second band receiving ports, respectively, and one second band transceiver module is connected to the third transmitting port (for example, TX1 capable of transmitting N79) and the fourth transmitting port (for example, TX2 capable of transmitting N79), respectively, 2T4R of the second band data is completed;
when the four first frequency band receiving ports are respectively connected with the four antennas 50, and the first transmitting port or the second transmitting port is connected with one first frequency band transceiving module, 1T4R of the first frequency band data is completed;
when the four second frequency band receiving ports are respectively connected with the four antennas 50, and the third transmitting port or the fourth transmitting port is connected with one second frequency band transceiving module, 1T4R of the second frequency band data is completed.
The rf receiving module 60 can also be called as RX module, and the rf receiving module 60 is only used for receiving signals and cannot be used for transmitting signals, and the rf transceiving module 30 can transmit signals or receive signals. The number of the rf receiving modules 60 may be four, and the number of the rf transceiving modules 30 may also be four, so as to implement a downlink 4 × 4MIMO (multiple input multiple output) function.
It should be noted that, referring to fig. 4, two adjacent rf receiving modules 60 may also be connected by a combiner 61, so that the number of the layout of the antennas 50 may be reduced, and the number of the combiners 61 is reduced, thereby further reducing the use cost of the rf circuit.
In this embodiment, the first frequency band receiving port includes a first receiving port, a second receiving port, a third receiving port and a fourth receiving port, and the second frequency band receiving port includes a fifth receiving port, a sixth receiving port, a seventh receiving port and an eighth receiving port, so that 2T4R of the first frequency band data or the second frequency band data or 1T4R of the first frequency band data or the second frequency band data can be implemented according to the above principle, thereby enhancing flexibility and diversity of working modes of the radio frequency circuit and enhancing an intelligent degree of the radio frequency circuit.
Optionally, referring to fig. 1 and fig. 3, the second switch module 40 includes a first sub-switch 41 and a second sub-switch 42, where the first sub-switch 41 and the second sub-switch 42 are both 2P4T switches, the first sub-switch 41 is connected to two of the antennas 50, and the second sub-switch 42 is connected to the other two antennas 50.
In this way, the second switch module 40 includes the first sub-switch 41 and the second sub-switch 42, that is, the second switch module 40 is composed of the first sub-switch 41 and the second sub-switch 42, so that the manufacturing requirement for the second switch module 40 is reduced, and the use cost is reduced.
Optionally, referring to fig. 1, one of the first frequency band transceiver modules and one of the second frequency band transceiver modules are connected to the first sub-switch 41, and the other of the first frequency band transceiver modules and the other of the second frequency band transceiver modules are connected to the second sub-switch 42.
Optionally, referring to fig. 3, the two first frequency band transceiver modules are both connected to the first sub-switch 41, and the two second frequency band transceiver modules are both connected to the second sub-switch 42.
Thus, through the two optional embodiments, the diversity and flexibility of the connection modes between the first frequency band transceiving module and the second frequency band transceiving module, and the first sub-switch 41 and the second sub-switch 42 can be further enhanced, so that the connection effect is better.
Optionally, referring to fig. 4, the second switch module 40 includes a third sub-switch 43, a fourth sub-switch 42 and a fifth sub-switch 41;
the four radio frequency receiving modules 60 are all connected to the third sub-switch 43, and the third sub-switch 43 is connected to the two antennas 50;
the first frequency band transceiving module and the second frequency band transceiving module are both connected with the fourth sub-switch 42, and the fourth sub-switch 42 is respectively connected with the third sub-switch 43 and the other antenna 50;
the other first frequency band transceiving module and the other second frequency band transceiving module are both connected with the fifth sub-switch 41, and the fifth sub-switch 41 is connected with the other antenna 50.
Thus, the diversity and flexibility of the connection mode between the first frequency band transceiving module and the second switch module 40 are further enhanced.
Wherein, optionally, the third sub-switch 43 is a 2P4T switch, the fourth sub-switch 42 is a 2P2T switch, and the fifth sub-switch 41 is a 1P2T switch. Therefore, on the basis of ensuring the switching effect of the switch, the use cost can be reduced, and the control collaboration among the sub-switches is enhanced.
Optionally, referring to fig. 1, the first switch module 20 is a 4P4T switch, and the first transmitting port, the second transmitting port, the third transmitting port and the fourth transmitting port are all connected to the first switch module 20.
Optionally, referring to fig. 3 and 4, the first switch module 20 includes two sixth sub-switches, and the sixth sub-switches are 2P2T switches;
the first transmitting port and the second transmitting port are both connected with one sixth sub-switch, and the third transmitting port and the fourth transmitting port are both connected with the other sixth sub-switch.
In this way, with the two alternative embodiments, the diversity of the first switch module 20 is also enhanced, and at the same time, the types of the first switch modules 20 that can be selected during assembly are increased, so that the assembly is more flexible. Of course, different kinds of the first switch modules 20 can be selected according to different requirements, so that the assembly flexibility is enhanced.
It should be noted that N78 and N79 in this application are only exemplary, and do not mean that this application can only be applied to transmission of resources corresponding to N78 and N79. The first band data and the second band data may be N78 and N79, respectively, but are not limited thereto.
The following is an example:
referring to fig. 1, when the rf circuit is in a state of 1T4R, N78 TX1 may walk through the PA2 via the first trace 411, and may also walk through the PA1 via the second trace 412, so as to achieve the purpose of selecting PA by N78 TX 1.
It should be noted that when the N78 TX1 walks the second trace 412 through the PA1, the TX1 may select ANT1 or ANT2, and when the N78 TX1 walks the first trace 411 through the PA2, the TX1 may select ANT3 or ANT 4. Thus, through the above steps, switching of the N78 between the four antennas 50 in the 1T4R mode can be achieved. Of course, N79 may also be switched between four antennas 50 in 1T4R mode, as well.
In addition, when the second trace 412 is routed through the PA1 by the N78 TX1, the TX1 may select ANT1 or ANT2, and meanwhile, the N78 TX2 is routed through the PA2, and the TX2 may select ANT3 or ANT4, which is a process of implementing switching of the four antennas 50 in the 2T4R state. Likewise, N79 is switched as such in the 2T4R state.
See another example:
referring to fig. 3, in the 1T4R state, when the N78 TX1 passes through the PA2 by the third trace 421, the TX1 may select ANT3 or ANT4, and when the N78 TX1 passes through the PA1 by the fourth trace 422, the TX1 may select ANT1 or ANT 2. Thus, through the above steps, switching of the N78 between the four antennas 50 in the 1T4R mode can be achieved. Of course, N79 may also be switched between four antennas 50 in 1T4R mode, as well.
In addition, when the third trace 421 is passed through the PA2 by the N78 TX1, the TX1 may select ANT3 or ANT4, and meanwhile, the N78 TX2 passes through the PA2, and the TX2 may select ANT1 or ANT2, which is a process of implementing switching of the four antennas 50 in the 2T4R state. Likewise, N79 is switched as such in the 2T4R state.
The following is an example of a specific embodiment:
referring to fig. 4, in the 1T4R state, the N78 TX1 walks the fifth trace 431 through the PA2, and at this time, the TX1 can select ANT 4; when the N78 TX1 sixth trace 432 passes through PA1, at this time TX1 selects ANT 3; the N78 TX1 runs the sixth trace 432, and through the PA1, the third sub-switch 43, the fourth sub-switch 42, and the fifth sub-switch 41, the ANT1 can be selected, and the ANT2 can be selected. Thus, through the above steps, switching of the N78 between the four antennas 50 in the 1T4R mode can be achieved. Similarly, N79 may also be switched between four antennas 50 in 1T4R mode.
In addition, when the fifth trace 431 is routed through the PA2 by the N78 TX1, the TX1 may select ANT4, and at the same time, the PA2 is routed by the N78 TX2, and the ANT1, ANT2, and ANT3 may be selected by the N78 TX2, which is a process of implementing switching of the four antennas 50 in the 2T4R state. Likewise, N79 is switched as such in the 2T4R state.
The embodiment of the present application further provides an electronic device, which includes the above radio frequency circuit, and since the electronic device in the embodiment includes the above radio frequency circuit, the electronic device has the same beneficial technical effects as the above embodiment. The specific structure of the radio frequency circuit may refer to the corresponding expressions in the above embodiments, and details are not repeated herein.
As an optional implementation manner, referring to fig. 5, the electronic device includes a main board 100, the radio frequency circuit includes a radio frequency transceiver 10, a first switch module 20, M radio frequency transceiver modules 30, and a second switch module 40, which are all disposed on the main board 100, and M antennas 50 disposed around the main board 100.
Since the antennas 50 are generally distributed at various positions of the housing of the electronic device, distances between the antennas 50 and the rf transceiver 10 on the motherboard 100 are different, so that the routing of the corresponding path of each antenna 50 is different, and actual detection shows that the difference between the paths can reach more than 5DB (ratio). Resulting in significant performance differences between the antennas 50.
In the embodiment of the present application, each antenna 50 is disposed around the motherboard, so that the performance difference between the corresponding paths of each antenna 50 can be reduced, the insertion loss of the paths is optimized, and the performance of the radio frequency circuit is improved. Meanwhile, it is also possible to achieve a solution to the problem of the unbalance of the antenna 50 due to the layout problem.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A radio frequency circuit, comprising: the antenna comprises a radio frequency transceiver, a first switch module, M radio frequency transceiver modules, a second switch module and M antennas, wherein M is a positive integer;
the radio frequency transceiver comprises a first frequency band transmitting port and a second frequency band transmitting port, the first frequency band transmitting port is used for transmitting first frequency band data, the second frequency band transmitting port is used for transmitting second frequency band data, the first frequency band transmitting port and the second frequency band transmitting port are respectively connected with the input end of the first switch module, the output end of the first switch module is connected with the M radio frequency transceiver modules, and the M radio frequency transceiver modules are connected with the M antennas through the second switch module;
the first switch module is used for controlling the first frequency band transmitting port and/or the second frequency band transmitting port to be conducted with different radio frequency transceiving modules, and the second switch module is used for controlling different radio frequency transceiving modules to be conducted with different antennas.
2. The RF circuit of claim 1, wherein M is four, the four RF transceiver modules include two first band transceiver modules and two second band transceiver modules, and the first switch module controls the first band transmitter port to be connected to at least one first band transceiver module or controls the second band transmitter port to be connected to at least one second band transceiver module when the first switch module is in the target state.
3. The rf circuit of claim 2, wherein the first band transmit port comprises a first transmit port and a second transmit port, and wherein the second band transmit port comprises a third transmit port and a fourth transmit port;
the radio frequency circuit also comprises four radio frequency receiving modules, and the radio frequency transceiver also comprises four first frequency band receiving ports and four second frequency band receiving ports;
the first frequency band receiving port comprises a first receiving port, a second receiving port, a third receiving port and a fourth receiving port, the first receiving port and the second receiving port are respectively connected with the second switch module through one radio frequency receiving module, and the third receiving port and the fourth receiving port are respectively connected with one first frequency band transceiving module;
the second frequency band receiving port comprises a fifth receiving port, a sixth receiving port, a seventh receiving port and an eighth receiving port, the fifth receiving port and the sixth receiving port are respectively connected with the second switch module through one radio frequency receiving module, and the seventh receiving port and the eighth receiving port are respectively connected with one second frequency band transceiver module.
4. The RF circuit of claim 3, wherein the second switch module comprises a first sub-switch and a second sub-switch, and the first sub-switch and the second sub-switch are both 2P4T switches, the first sub-switch is connected to two of the antennas, and the second sub-switch is connected to the other two antennas.
5. The RF circuit of claim 4, wherein one of the first band transceiver modules and one of the second band transceiver modules are connected to the first sub-switch, and the other of the first band transceiver modules and the other of the second band transceiver modules are connected to the second sub-switch.
6. The RF circuit of claim 3, wherein the second switch module comprises a third sub-switch, a fourth sub-switch and a fifth sub-switch;
the four radio frequency receiving modules are all connected with the third sub-switch, and the third sub-switch is connected with the two antennas;
the first frequency band transceiving module and the second frequency band transceiving module are both connected with the fourth sub-switch, and the fourth sub-switch is respectively connected with the third sub-switch and the other antenna;
the other first frequency band transceiving module and the other second frequency band transceiving module are both connected with the fifth sub-switch, and the fifth sub-switch is connected with the other antenna.
7. The RF circuit of claim 6, wherein the third sub-switch is a 2P4T switch, the fourth sub-switch is a 2P2T switch, and the fifth sub-switch is a 1P2T switch.
8. The RF circuit according to any of claims 3-6, wherein the first switch module is a 4P4T switch, and the first transmit port, the second transmit port, the third transmit port, and the fourth transmit port are all connected to the first switch module.
9. The RF circuit according to any of claims 3-6, wherein the first switch module comprises two sixth sub-switches, and the sixth sub-switches are 2P2T switches;
the first transmitting port and the second transmitting port are both connected with one sixth sub-switch, and the third transmitting port and the fourth transmitting port are both connected with the other sixth sub-switch.
10. An electronic device comprising the radio frequency circuit of any one of claims 1-9.
11. The electronic device of claim 10, wherein the electronic device comprises a motherboard, and the rf circuit comprises an rf transceiver, a first switch module, M rf transceiver modules, and a second switch module, all disposed on the motherboard, and the rf circuit comprises M antennas disposed around the motherboard.
Priority Applications (2)
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| CN202010600195.9A CN111756388B (en) | 2020-06-28 | 2020-06-28 | Radio frequency circuit and electronic equipment |
| PCT/CN2021/101498 WO2022001746A1 (en) | 2020-06-28 | 2021-06-22 | Radio frequency circuit and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010600195.9A CN111756388B (en) | 2020-06-28 | 2020-06-28 | Radio frequency circuit and electronic equipment |
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| CN111756388B CN111756388B (en) | 2022-06-07 |
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| WO (1) | WO2022001746A1 (en) |
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| WO2022001746A1 (en) | 2022-01-06 |
| CN111756388B (en) | 2022-06-07 |
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