CN214154506U

CN214154506U - Radio frequency structure and electronic equipment

Info

Publication number: CN214154506U
Application number: CN202120529368.2U
Authority: CN
Inventors: 赵林
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-09-07
Anticipated expiration: 2031-03-12

Abstract

The application discloses radio frequency structure and electronic equipment, this radio frequency structure includes: the radio frequency front end module comprises a radio frequency front end module, an antenna module and at least two transceivers; each transceiver is connected with the radio frequency front end module, and the radio frequency front end module is connected with the antenna module; when the at least two transceivers output radio frequency signals to the radio frequency front end module, the radio frequency front end module works in different frequency band modes through the antenna module under the radio frequency signals of different transceivers. The transceiver that this application can realize two kinds of at least frequency channel modes shares a radio frequency front end module, has reduced the quantity of radio frequency front end module among the radio frequency structure, has reduced the area occupied of radio frequency front end module, the spatial layout of radio frequency structure among the electronic equipment of being convenient for.

Description

Radio frequency structure and electronic equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a radio frequency structure and an electronic device.

Background

With the development of the fifth generation mobile communication technology (5th generation mobile networks, 5G), the communication frequency bands of electronic devices are increasing. In the design of the radio frequency structure, different operating frequency bands usually correspond to different radio frequency front end modules, so that the number of the radio frequency front end modules in the electronic device is large. The design mode of the radio frequency front-end module has higher cost and large occupied area, and is not beneficial to the space layout of the radio frequency structure of the electronic equipment.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a radio frequency structure and electronic equipment, and aims to solve the problems that the existing radio frequency structure is large in occupied area and not beneficial to spatial layout of the radio frequency structure of the electronic equipment.

In a first aspect, an embodiment of the present application provides a radio frequency structure, including: the radio frequency front end module comprises a radio frequency front end module, an antenna module and at least two transceivers;

each transceiver is connected with the radio frequency front end module, and the radio frequency front end module is connected with the antenna module;

when the at least two transceivers output radio frequency signals to the radio frequency front end module, the radio frequency front end module works in different frequency band modes through the antenna module under the radio frequency signals of different transceivers.

In a second aspect, an embodiment of the present application further provides an electronic device, including the radio frequency structure according to the first aspect.

Thus, in the above scheme of the present application, at least two transceivers may share one rf front-end module, and at least two operating frequency band modes are implemented by one rf front-end module. Therefore, the radio frequency structure of the embodiment of the application shares one radio frequency front end module by the transceivers in at least two frequency band modes, so that the number of the radio frequency front end modules in the radio frequency structure is reduced, the occupied area of the radio frequency front end modules is reduced, and the spatial layout of the radio frequency structure in the electronic equipment is facilitated.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a radio frequency architecture;

FIG. 2 is a second schematic diagram of an RF structure according to an embodiment of the present invention;

fig. 3 is a third schematic diagram illustrating an rf structure according to an embodiment of the present invention;

FIG. 4 is a fourth schematic diagram of the RF structure of the embodiment of the present application;

FIG. 5 shows a fifth exemplary architecture of the RF architecture of the present application;

FIG. 6 shows a sixth exemplary architecture of the RF architecture of the present application;

FIG. 7 is a seventh schematic diagram of an RF structure according to an embodiment of the present application;

FIG. 8 shows an eighth schematic block diagram of an RF architecture in accordance with an embodiment of the present application;

FIG. 9 is a schematic diagram of an RF architecture according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a radio frequency structure according to another embodiment of the present application.

Detailed Description

Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

An embodiment of the present application provides a radio frequency structure, including: the radio frequency front end module comprises a radio frequency front end module, an antenna module and at least two transceivers; each transceiver is connected with the radio frequency front end module, and the radio frequency front end module is connected with the antenna module.

Optionally, in a case that the radio frequency structure includes a first transceiver and a second transceiver, the radio frequency front-end module may operate in a first frequency band mode through the antenna module according to a first radio frequency signal output by the first transceiver, and may also operate in a second frequency band mode through the antenna module according to a second radio frequency signal output by the second transceiver.

Of course, the radio frequency structure may further include a third transceiver, and the radio frequency front-end module may operate in a third frequency band mode through the antenna module according to a third radio frequency signal output by the third transceiver; the radio frequency structure may further include a fourth transceiver, and the radio frequency front end module may operate in a fourth frequency band mode through the antenna module according to a fourth radio frequency signal output by the fourth transceiver, and the like.

Optionally, the antenna module may include at least one antenna, for example, the multiple transceivers may multiplex the antenna (for example, under the condition that different operating frequency bands corresponding to the multiple transceivers may meet different operating conditions, the multiple transceivers may multiplex the antenna, such as time division multiplexing); or, different transceivers correspond to different antennas, which is not limited in the embodiments of the present application.

Optionally, under the condition that the radio frequency front-end module includes a plurality of transceivers, the design of the radio frequency path in the radio frequency front-end module can be performed according to the working state between different transceivers, if different frequency bands are required to be met and the radio frequency front-end module can work simultaneously, the radio frequency path and the antenna can be designed independently for different transceivers, if different frequency bands are required to be met and the radio frequency front-end module can work simultaneously, the radio frequency path and the antenna can be multiplexed for different transceivers (such as time division multiplexing).

In the above scheme, at least two transceivers can share one radio frequency front end module, and at least two working frequency band modes are realized through one radio frequency front end module. Therefore, the radio frequency structure of the embodiment of the application shares one radio frequency front end module by the transceivers in at least two frequency band modes, so that the number of the radio frequency front end modules in the radio frequency structure is reduced, the occupied area of the radio frequency front end modules is reduced, and the spatial layout of the radio frequency structure in the electronic equipment is facilitated.

The following takes an example that the radio frequency path includes two radio frequency paths, and the radio frequency structure of the embodiment of the present application is specifically described:

as shown in fig. 1, an embodiment of the present application provides a radio frequency structure, including: a first transceiver 11, a second transceiver 12, a radio frequency front end module 13 and an antenna module 14.

The first transceiver 11 and the second transceiver 12 are both connected to the rf front-end module 13, and the rf front-end module 13 is connected to the antenna module 14.

When the first transceiver 11 transmits a first radio frequency signal to the radio frequency front end module 13, the radio frequency front end module 13 operates in a first frequency band mode through at least one of the antenna modules 14; when the second transceiver 12 transmits a second radio frequency signal to the radio frequency front end module 13, the radio frequency front end module 13 operates in a second frequency band mode through at least one of the antenna modules 14.

Specifically, the antenna 14 may include an antenna unit (the antenna unit may include one or more antennas), and when the first transceiver 11 transmits a first radio frequency signal to the radio frequency front end module 13, the radio frequency front end module 13 operates in a first frequency band mode through the first antenna unit; when the second transceiver 12 transmits the second radio frequency signal to the radio frequency front end module 13, the radio frequency front end module 13 operates in the second frequency band mode through the first antenna unit.

Specifically, the antenna 14 may include at least two antenna units (each antenna unit may include one or more antennas), and when the first transceiver 11 transmits a first radio frequency signal to the radio frequency front end module 13, the radio frequency front end module 13 operates in a first frequency band mode through at least one first antenna unit 141; when the second transceiver 12 transmits a second radio frequency signal to the radio frequency front end module 13, the radio frequency front end module 13 operates in a second frequency band mode through at least one second antenna unit 142.

In the above scheme of this application, first transceiver and second transceiver share a radio frequency front end module, realize two kinds of operating frequency channel modes through a radio frequency front end module. Therefore, the radio frequency structure of the embodiment of the application shares one radio frequency front end module by the transceivers in two frequency band modes, so that the number of the radio frequency front end modules in the radio frequency structure is reduced, the occupied area of the radio frequency front end modules is reduced, and the spatial layout of the radio frequency structure in the electronic equipment is facilitated.

Optionally, as shown in fig. 2, the rf front-end module includes a first rf path 15 and a first switching unit 16.

A first rf port 111 on the first transceiver 11 is connected to the first rf path 15 through the first switching unit 16; the second rf port 121 of the second transceiver 12 is connected to the first rf path 15 through the first switching unit 16; the first rf path 15 is connected to the antenna module 14.

Wherein the first switching unit 16 is switchable between a first conductive state and a second conductive state; in the first conducting state, the first rf port 111 is conducted with the first rf path 15; in the second conducting state, the second rf port 121 is conducted with the first rf path 15.

Specifically, the first rf port may be a receiving port RX, a transmitting port TX, or a transceiving port TX + RX; the second rf port may be a receive port RX, a transmit port TX, or a transmit/receive port TX + RX.

Optionally, the first switching unit 16 may be a single-pole double-throw switch, and the first rf port 111 and the first rf path 15 are turned on or the second rf port 121 and the first rf path 15 are turned on by switching a switch state of the single-pole double-throw switch.

Specifically, as shown in fig. 3, in the first conducting state, the fixed end 1611 of the single-pole double-throw switch is communicated with the first active end 1612 of the single-pole double-throw switch, and the first rf port 111 is conducted with the first rf path 15; in the second conducting state, the fixed end 1611 of the single-pole double-throw switch is communicated with the second active end 1613 of the single-pole double-throw switch, and the second rf port 121 is conducted with the first rf path 15.

The radio frequency structure of the embodiment of the application, by setting the first switching unit 16 in the radio frequency front end module, the first radio frequency channel 15 in the switching radio frequency front end module 13 is conducted with the first transceiver 11, or the first radio frequency channel 15 in the switching radio frequency front end module 13 is conducted with the second transceiver 12, so that through the scheme of the application, the switching of one radio frequency channel between two working frequency band modes is realized, the spatial layout of the radio frequency structure is optimized, and the manufacturing cost of the electronic device is reduced.

Optionally, as shown in fig. 3, the first rf path 15 may include: a first amplifier 151, a first filter 152, and a first coupler 153.

The first amplifier 151, the first filter 152 and the first coupler 153 are connected in series between the first switching unit 16 and the antenna module 14.

For example: in the case where the first rf port 111 and the second rf port 121 are TX ports, the first amplifier 151 may amplify the rf signal transmitted by the first transceiver 11 or the second transceiver 12, and filter the rf signal through the first filter 152 to filter out signals outside a desired frequency band. Therefore, through the radio frequency path of the embodiment of the application, the received radio frequency signal can be adjusted to a required frequency band, and the interference of signals outside the required frequency band is reduced.

Optionally, as shown in fig. 4, the rf front end module 13 may further include a second rf path 17.

A third rf port of the first transceiver 11 is connected to the second rf path 17 through the first switching unit 16; a fourth rf port on the second transceiver 12 is connected to the second rf path 17 through the first switching unit 16; the second rf path 17 is connected to the antenna module 14.

Wherein the first switching unit 16 is switchable between a third on-state and a fourth on-state; in the third conducting state, the third rf port 112 is conducted with the second rf path 17; in the fourth conducting state, the fourth rf port 122 is conducted with the second rf path 17.

Alternatively, the first switching unit 16 may be a double-pole four-throw switch, and the switching of the switch state of the double-pole four-throw switch is performed to switch the first switching unit 16 among a first conducting state, a second conducting state, a third conducting state and a fourth conducting state.

Specifically, the double-pole four-throw switch may include two fixed ends and four movable ends, wherein when the first fixed end of the double-pole four-throw switch is communicated with the first movable end of the double-pole four-throw switch, the first radio frequency port is conducted with the first radio frequency path; when the second fixed end of the double-pole four-throw switch is communicated with the second movable end of the double-pole four-throw switch, the third radio frequency port is conducted with the second radio frequency channel; when the first fixed end of the double-pole four-throw switch is communicated with the third movable end of the double-pole four-throw switch, the second radio frequency port is conducted with the first radio frequency channel; and a second fixed end of the double-pole four-throw switch is communicated with a fourth movable end of the double-pole four-throw switch, and the fourth radio frequency port is communicated with the second radio frequency channel. Thus, two radio frequency ports in the first transceiver can be respectively conducted with two radio frequency paths through one double-pole four-throw switch, or two radio frequency ports in the second transceiver can be respectively conducted with two radio frequency paths through one double-pole four-throw switch.

As shown in fig. 5, the second rf path 17 may include: a second amplifier 171, a second filter 172, and a second coupler 173.

The second amplifier 171, the second filter 172 and the second coupler 173 are connected in series between the first switching unit 16 and the antenna module 14.

When the third rf port 112 and the fourth rf port 122 are RX ports, the second filter 172 filters signals received by the antenna module 14 to filter signals outside a required frequency band; after being amplified by the second amplifier 171, the amplified signal is transmitted to the first transceiver 11 or the second transceiver 12. Therefore, through the radio frequency path of the embodiment of the application, the radio frequency signal received by the antenna module 14 can be correspondingly processed, the interference of signals outside a required frequency band is reduced, and the antenna performance is ensured.

As shown in fig. 6, the first switching unit 16 may include: a first switch 18 and a second switch 19. For example: the first switch 18 and the second switch 19 may be single pole double throw switches.

The first terminal 181 of the first switch 18 is connected to the first rf port 111, the second terminal 182 of the first switch 18 is connected to the third rf port 112, and the third terminal 183 of the first switch 18 is connected to the first rf path 15.

The first terminal 191 of the second switch 19 is connected to the second rf port 121, the second terminal 192 of the second switch 19 is connected to the fourth rf port 122, and the third terminal 193 of the second switch 19 is connected to the second rf path 17.

In the first conducting state, the first terminal 181 and the third terminal 183 of the first switch 18 are conducting; in the second conducting state, the first terminal 191 and the third terminal 193 of the second switch 19 are conducted; in the third conducting state, the second terminal 182 and the third terminal 183 of the first switch 18 are conducting; in the fourth conducting state, the second terminal 192 and the third terminal 193 of the second switch 19 are conducting.

The radio frequency structure of this application embodiment sets up first switching unit through in the radio frequency front end module, the radio frequency access switches between first conducting state, second conducting state, third conducting state and fourth conducting state, promptly the radio frequency structure can switch between the receipt, the transmission of first frequency channel mode, the receipt, the transmission of second frequency channel mode. Therefore, according to the scheme of the application, the radio frequency services received and transmitted in two frequency band modes can be carried out through one radio frequency channel, the spatial layout of the radio frequency structure is optimized, and the manufacturing cost of the electronic equipment is reduced.

Optionally, as shown in fig. 7, the antenna module 14 includes a first antenna unit 141 and a second antenna unit 142, and the radio frequency front end module 13 may further include a second switching unit 20.

The first rf path 15 and the second rf path 17 are connected to the first antenna element 141 and the second antenna element 142 through the second switching unit 20.

Wherein the second switching unit 20 is switchable between a fifth conductive state and a sixth conductive state. In the fifth conducting state, the first rf path 15 is conducted with the first antenna element 141, and the second rf path 17 is conducted with the second antenna element 142; in the sixth conducting state, the first rf path 15 is conducted with the second antenna unit 142, and the second rf path 17 is conducted with the first antenna unit 15.

The first antenna unit 141 may include one or more antennas, and the second antenna unit 142 may include one or more antennas, which may be specifically set according to the number of antennas required for the operation in the first frequency band mode and the second frequency band mode, which is not limited in this embodiment of the present application.

Alternatively, as shown in fig. 7, the second switching unit 20 may be a double-pole double-throw switch, and the first rf path 15 and the second rf path 17 may be conducted with different antenna units by different switch states of the double-pole double-throw switch.

Specifically, in the fifth conducting state, the first fixed end 201 of the double-pole double-throw switch is communicated with the first active end 202 of the double-pole double-throw switch, the second fixed end 203 of the double-pole double-throw switch is communicated with the second active end 204 of the double-pole double-throw switch, the first rf path 15 is conducted with the first antenna unit 141, and the second rf path 17 is conducted with the second antenna unit 142.

In the sixth conducting state, the first fixed end 201 of the double-pole double-throw switch is communicated with the second movable end 204 of the double-pole double-throw switch, the second fixed end 203 of the double-pole double-throw switch is communicated with the first movable end 202 of the double-pole double-throw switch, the first rf path 15 is conducted with the second antenna unit 142, and the second rf path 17 is conducted with the first antenna unit 141.

Thus, by the arrangement of the second switching unit 20, the rf structure can switch two rf paths to conduct with different antenna elements. Therefore, signals are transmitted or received by one radio frequency front end module through different antenna units, the number of the radio frequency front end modules in the radio frequency structure is reduced, and the spatial layout of the radio frequency structure is optimized.

Optionally, as shown in fig. 8, the radio frequency structure may further include a third switching unit 21. The antenna module 14 may further include a third antenna element 143.

The rf front-end module 13 is connected to the third antenna unit 143 through the third switching unit 21.

Wherein the third switching unit 21 is switchable between a seventh conducting state and an eighth conducting state; in the seventh conducting state, the radio frequency front end module 13 operates in the first frequency band mode through the third antenna unit 143; in the eighth conduction state, the rf front-end module 13 works in the second frequency band mode through the third antenna unit 143.

The third antenna unit 143 may include one or more antennas, and may be specifically set according to the number of antennas required for the first frequency band mode and the second frequency band mode, which is not limited in this embodiment of the present invention.

Alternatively, the third switching unit 21 may be a single-pole double-throw switch, and the third antenna unit 143 may be switched to be conducted with a different radio frequency channel by a switching state of the single-pole double-throw switch. Of course, the third switching unit 21 may also be a multi-pole multi-throw switch, which may be determined according to the number of antennas, the number of radio frequency paths, and the like, and the embodiment of the present application is not limited thereto.

Specifically, as shown in fig. 8, in the seventh conducting state, the fixed end 213 of the single-pole double-throw switch is communicated with the first active end 211 of the single-pole double-throw switch, and the first radio frequency path 15 is conducted with the third antenna unit 143, so that when the first transceiver 11 is conducted with the first radio frequency path, the third antenna unit 143 may operate in the first frequency band mode, or when the second transceiver 12 is conducted with the first radio frequency path 15, the third antenna unit 143 may operate in the second frequency band mode; in the eighth conducting state, the fixed end 213 of the spdt switch is connected to the second active end 212 of the spdt switch, so that the third antenna unit 143 can operate in the first frequency band mode when the first transceiver 11 is conducting with the second rf path 17, or the third antenna unit 143 can operate in the second frequency band mode when the second transceiver 12 is conducting with the second rf path 17.

In the radio frequency structure of the embodiment of the application, under the condition that two transceivers can multiplex one radio frequency front end module, multiplexing of antennas can be realized, so that the number of the antennas can be reduced, the design difficulty of the antennas is simplified, and the manufacturing cost of electronic equipment is reduced.

It should be noted that, the foregoing embodiment of the present application takes two antennas and two radio frequency paths as an example for description, it should be understood that the foregoing solution of the present application can also be applied to a scenario with multiple antennas and multiple radio frequency paths, and is similar to the foregoing principle, and the embodiment of the present application is not limited thereto.

It should be further noted that, in order to implement that one rf front-end module is compatible with two or even multiple rf services in different operating frequency bands, a suitable power amplifier/low noise amplifier (PA/LNA) may be selected to meet bandwidth requirements of different operating frequency bands, so as to design the rf front-end module. Certainly, in order to reduce the design cost and the device selection requirement, two or even a plurality of different working frequency bands with relatively close frequency bands can be selected to multiplex one radio frequency front end module.

The following describes the radio frequency structure of the embodiment of the present application with reference to the 5G scenario, for example: the 5G frequency bands are N77, N78, N79 and the like.

Among them, the supported frequency ranges of the power amplifier/low noise amplifier (PA/LNA) of the typical N77 and N78 rf front end module are: 3.3 to 4.2GHz at 900M bandwidth, and a power amplifier/low noise amplifier (PA/LNA) bandwidth/operating frequency ratio of 24%. The maximum transmission power of the Quadrature Phase Shift Keying (QPSK) of the radio frequency front end module N77 and N78 is 28.5dBm, the maximum transmission power of the Quadrature Amplitude Modulation (256 QAM) is 22dBm, and the Error Vector Magnitude (EVM) is within 1.2%; the gain of a Low Noise Amplifier (LNA) in the whole bandwidth is above 18.5 dB.

The following frequency ranges corresponding to the first frequency band mode may be: 4.8 GHz-5 GHz, namely the frequency band range supported by NR N79; the frequency range corresponding to the second frequency band mode may be: for example, the frequency band range supported by WIFI5G is 5.15GHz to 5.85GHz, and the description that the performance of one radio frequency front end module can be compatible with two radio frequency services in different working frequency bands in this application is as follows:

when data service is performed and the WIFI 5GHZ is connected, the radio frequency service of the main radio frequency is disconnected, that is, the transceiving of the N79 radio frequency signal and the transceiving of the WIFI5G radio frequency signal are time-shared.

When the WIFI5G works, the linear maximum power of the 256QAM needed by the radio frequency front-end module is about 17dBm, and compared with the linear maximum power of the 256QAM needed by the N79 working, the linear maximum power of the 256QAM needed by the radio frequency front-end module is 22dBm, and the difference between the two linear maximum powers is only about 5 dB.

If multiplex a radio frequency front end module with N79 and WIFI 5GHZ frequency channel, if multiplex the WIFI 5GHZ frequency channel with the radio frequency front end module of N79, realize the compatibility of N79 and WIFI 5GHZ frequency channel. The bandwidth of a power amplifier/low noise amplifier (PA/LNA) is selected to be 5.85-4.8G-1.05 GHz, the bandwidth/working frequency ratio is 20%, and the bandwidth/working frequency ratio is lower than that of power amplifiers/low noise amplifiers (PA/LNA) modules of N77 and N78, so that the radio frequency front end module of N79 can be used for supporting an N79 frequency band and a WIFI 5GHZ frequency band.

The maximum transmitting power of the QPSK of the N79 radio frequency front end module is 28.5dBm, the maximum transmitting power of the QPSK of 256QAM is 22dBm, and the Error Vector Magnitude (EVM) is within 1.2%; the gain of the LNA is above 18.5dB in the whole bandwidth.

As can be known from the WIFI frequency band and the 5G frequency band defined in 3GPP, the frequency band related to WIFI is defined as follows:

	uplink frequency range	Downlink frequency range	Systems of
				WIFI 5G	5150-5850MHz	5150-5850MHz	TDD

The 5G related frequency band is defined as follows:

LTE/NR	frequency band	Uplink frequency range	Downlink frequency range	Systems of
					NR	N77	3.3-4.2GHZ	3.3-4.2GHZ	TDD
NR	N78	3.3-3.8GHZ	3.3-3.8GHZ	TDD
					NR	N79	4.4-5.0GHz	4.4-5.0GHz	TDD

In summary, the performance of the power amplifier/low noise amplifier (PA/LNA) of the N79 rf front end is sufficient to meet the WIFI5G or even WIFI 6G performance requirements. The typical linear transmitting power is far higher than that of a WIFI5G radio frequency front end module, and the WIFI5G radio frequency front end module can be used for supporting a WIFI5G frequency band.

As shown in fig. 9, an architecture of an N79 and WIFI5G frequency band multiplexing radio frequency front end module is provided. The transceiver modules of the two frequency bands of N79 and WIFI5G share one radio frequency front end module 13, the filter of WIFI5G is external, and simultaneously, the gain and the bias of a power amplifier/low noise amplifier (PA/LNA) can be controlled through two independent Mobile Industry Processor Interfaces (MIPI), the switching timing sequences of the first switching unit 16 and the second switching unit 20, and the like, so that the radio frequency structure is controlled to work in the frequency band mode corresponding to N79, or the radio frequency structure is controlled to work in the frequency band mode corresponding to WIFI5 GHZ. During operation, the power supply of the N79 radio frequency front end is inconvenient, and a constant voltage can be set for control in the WIFI5G use, for example, a voltage of 3.4V.

Specifically, when the receiving port RX of N79 (i.e. the RX port of RFIC) is communicated with the power amplifier 901 through the first switching unit 16, and the power amplifier 901 is connected with the filter 904, the coupler 905 through the switch 903, and the antenna through the switch 906 (for example, the antenna ANT1), the radio frequency structure performs N79 radio frequency signal reception through the ANT 1; accordingly, when the first switching unit 16 connects the transmitting port TX of the N79 with the power amplifier 902, the ANT1 may transmit the N79 radio frequency signal, and the on state of the switch 906 may be switched according to the operating mode of the N79 frequency band, which is not limited in the embodiments of the present application.

When the transmitting port TX of WIFI5G is connected to the power amplifier 902 through the first switching unit 16, and the power amplifier 902 is connected to the filter 907 and the antenna ANT5 through the switch 903, the radio frequency structure transmits WIFI5G radio frequency signals through the antenna ANT 5; accordingly, when the receiving port RX of the WIFI5G is communicated with the power amplifier 901 through the first switching unit 16, the reception of the WIFI5G radio frequency signal and the like may be performed through the ANT 5.

The radio frequency structure of the embodiment of the application realizes multiplexing of the radio frequency front end modules of the N79 and WIFI5G frequency bands, reduces the number of the radio frequency front end modules, optimizes the spatial layout of the radio frequency structure, and reduces the manufacturing cost of the electronic equipment.

As shown in fig. 10, an embodiment of the present application provides another architecture of an N79 and WIFI5G frequency band multiplexing radio frequency front end module. The filter 1001 of the WIFI5G is external, and meanwhile, the gain and the polarization of the power amplifier/low noise amplifier (PA/LNA) can be controlled through two independent MIPIs, and the switching timings of the first switching unit 16 and the third switching unit 21 are controlled to control the radio frequency front-end module 13 to conduct different radio frequency interfaces and antennas. In operation, the N79 rf front-end power supply is unchanged, and a constant voltage, for example, a voltage of 3.4V, may be set for control in WIFI 5G.

Specifically, when the transmitting port TX of N79 is communicated with the power amplifier 1003 through the first switching unit 16, and the power amplifier 1003 is connected with the filter 1005, the coupler 1006 through the switch 1004, and is connected with the antenna through the third switching unit 21 (for example, the antenna ANT4), the radio frequency structure performs transmission of N79 radio frequency signals through the ANT 4; accordingly, when the first switching unit 16 connects the receiving port RX of the N79 with the power amplifier 1003, the ANT4 may receive the N79 radio frequency signal, and the like, and specifically, the on state of the third switching unit 21 may be switched according to the operating mode of the N79 frequency band, and the embodiment of the present application is not limited thereto.

When the transmitting port TX of WIFI5G is connected to the power amplifier 1003 through the first switching unit 16, the power amplifier 1003 is connected to the filter 1001 through the switch 1004, and the third switching unit 21 is communicated to the antenna ANT4, the rf structure transmits WIFI5G rf signals through the antenna ANT 4; accordingly, when the receiving port RX of the WIFI5G is communicated with the power amplifier 1002 through the first switching unit 16, the reception of the WIFI5G radio frequency signal and the like may be performed through the ANT 4.

Optionally, in the WIFI5G operating mode, the third switching unit 21 may also switch the radio frequency interface between the antenna ANT1, ANT2, or ANT3 and the WIFI5G to be turned on, that is, the antenna ANT1, ANT2, or ANT3 may implement transceiving of a WIFI5G signal, or the antenna of the WIFI5G may implement time division multiplexing of the antenna ANT1, ANT2, or ANT3 in a time slot of N79, which is not limited in this embodiment of the application.

The radio frequency structure of the embodiment of the application realizes multiplexing of the radio frequency front-end modules of the N79 and WIFI5G frequency bands, and reduces the number of the radio frequency front-end modules; multiplexing N79's antenna combines WIFI 5G's antenna and N79's antenna to a time-sharing multiplexing, has reduced the quantity of antenna, has reduced the design degree of difficulty of antenna when optimizing radio frequency structure space layout, has reduced electronic equipment's manufacturing cost.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or electronic device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or electronic device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or electronic device that comprises the element.

While the foregoing is directed to the preferred embodiment of the present application, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the disclosure and, therefore, the scope of the disclosure is to be defined by the appended claims.

Claims

1. A radio frequency structure, comprising: the radio frequency front end module comprises a radio frequency front end module, an antenna module and at least two transceivers;

2. The radio frequency structure of claim 1, wherein the at least two transceivers comprise: a first transceiver and a second transceiver;

when the first transceiver transmits a first radio frequency signal to the radio frequency front end module, the radio frequency front end module works in a first frequency band mode through the antenna module; and when the second transceiver transmits a second radio frequency signal to the radio frequency front end module, the radio frequency front end module works in a second frequency band mode through the antenna module.

3. The radio frequency structure of claim 2, wherein the radio frequency front end module comprises a first radio frequency path and a first switching unit;

a first radio frequency port on the first transceiver is connected with the first radio frequency path through the first switching unit; a second radio frequency port on the second transceiver is connected with the first radio frequency channel through the first switching unit; the first radio frequency channel is connected with the antenna module;

wherein the first switching unit is switchable between a first conductive state and a second conductive state; in the first conduction state, the first radio frequency port is conducted with the first radio frequency channel; and under the second conduction state, the second radio frequency port is conducted with the first radio frequency channel.

4. The radio frequency structure of claim 3, wherein the first radio frequency path comprises: a first amplifier, a first filter and a first coupler;

the first amplifier, the first filter and the first coupler are connected in series between the first switching unit and the antenna module.

5. The radio frequency structure of claim 3, wherein the radio frequency front end module further comprises a second radio frequency path;

a third radio frequency port on the first transceiver is connected with the second radio frequency channel through the first switching unit; a fourth radio frequency port on the second transceiver is connected with the second radio frequency channel through the first switching unit; the second radio frequency channel is connected with the antenna module;

wherein the first switching unit is switchable between a third conductive state and a fourth conductive state; in the third conducting state, the third rf port is conducted with the second rf path; and in the fourth conduction state, the fourth radio frequency port is conducted with the second radio frequency channel.

6. The radio frequency structure of claim 5, wherein the second radio frequency path comprises: a second amplifier, a second filter and a second coupler;

the second amplifier, the second filter and the second coupler are connected in series between the first switching unit and the antenna module.

7. The radio frequency structure according to claim 5, characterized in that the first switching unit comprises: a first switch and a second switch;

a first end of the first switch is connected with the first radio frequency port, a second end of the first switch is connected with the third radio frequency port, and a third end of the first switch is connected with the first radio frequency channel;

a first end of the second switch is connected with the second radio frequency port, a second end of the second switch is connected with the fourth radio frequency port, and a third end of the second switch is connected with the second radio frequency channel;

wherein, in the first conducting state, the first end and the third end of the first switch are conducted; under the second conduction state, the first end and the third end of the second switch are conducted; under the third conducting state, the second end and the third end of the first switch are conducted; and under the fourth conduction state, the second end and the third end of the second switch are conducted.

8. The RF structure of claim 5, wherein the antenna module comprises a first antenna element and a second antenna element, and the RF front-end module comprises a second switching element;

the first radio frequency path and the second radio frequency path are connected with the first antenna unit and the second antenna unit through the second switching unit;

wherein the second switching unit is switchable between a fifth conductive state and a sixth conductive state; in the fifth conducting state, the first rf path is conducted with the first antenna unit, and the second rf path is conducted with the second antenna unit; in the sixth conducting state, the first rf path is conducted with the second antenna unit, and the second rf path is conducted with the first antenna unit.

9. The radio frequency structure according to claim 1, characterized in that it further comprises a third switching unit; the antenna module comprises a third antenna unit;

the radio frequency front end module is connected with the third antenna unit through the third switching unit;

wherein the third switching unit is switchable between a seventh conductive state and an eighth conductive state; in the seventh conducting state, the radio frequency front end module works in a first frequency band mode through the third antenna unit; and in the eighth conduction state, the radio frequency front end module works in a second frequency band mode through the third antenna unit.

10. The radio frequency structure according to claim 2, wherein the first band mode corresponds to a frequency range of: 4.8 GHz-5 GHz; the frequency range corresponding to the second frequency band mode is as follows: 5.15 GHz-5.85 GHz.

11. An electronic device comprising a radio frequency structure as claimed in any one of claims 1 to 10.