Radio frequency front-end module, radio frequency architecture and electronic equipment

Abstract

The invention provides a radio frequency front-end module, a radio frequency architecture and electronic equipment. The radio frequency front end module comprises a TX port, a control unit, a first power amplification unit, a second power amplification unit, a first switch unit and an antenna port, the control unit is used for controlling the first switch unit to conduct a first transmitting channel from the TX port to the antenna port according to the first control signal, so that a first uplink signal output by the TX port is amplified by the first power amplification unit and then is output to the antenna port; the control unit is also used for controlling the first switch unit to conduct a second transmitting channel from the TX port to the antenna port according to the second control signal, so that a second uplink signal output by the TX port is amplified by the second power amplification unit and then is output to the antenna port; the first power supply voltage of the first power amplification unit is lower than the second power supply voltage of the second power amplification unit, and the output power of the first power amplification unit is lower than the output power of the second power amplification unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, and particularly relates to a radio frequency front-end module, a radio frequency architecture and an electronic device. BACKGROUND

[0002] In order to meet the communication requirements of different application scenarios, a radio frequency front-end module (FEM) of an electronic device (such as a mobile phone, a tablet computer and the like) needs to support different power modes. For example, in a near-field communication scenario such as wireless projection, mobile phone moving, file mutual transmission and the like, the FEM works in a low power mode (LPM). In a far-field communication scenario such as voice call, video conference and the like, the FEM works in a middle power mode (MPM) or a high power mode (HPM). However, this type of FEM can cause endurance and emission problems, and therefore reducing the power consumption of this type of FEM is a technical problem to be solved. SUMMARY

[0003] The radio frequency front-end module, the radio frequency architecture and the electronic device provided by the present application can reduce the power consumption of the first power amplification unit and improve the matching efficiency of the first power amplification unit, thereby being beneficial to improving the endurance of the electronic device.

[0004] In a first aspect, an embodiment of the present application provides a radio frequency front-end module, comprising: a TX port, a control unit, a first power amplification unit, a second power amplification unit, a first switch unit and an antenna port; wherein the control unit is configured to control the first switch unit to turn on a first transmission channel from the TX port to the antenna port according to a first control signal, so as to output a first uplink signal output by the TX port to the antenna port after amplification by the first power amplification unit; and the control unit is further configured to control the first switch unit to turn on a second transmission channel from the TX port to the antenna port according to a second control signal, so as to output a second uplink signal output by the TX port to the antenna port after amplification by the second power amplification unit; wherein a first supply voltage of the first power amplification unit is lower than a second supply voltage of the second power amplification unit, and an output power of the first power amplification unit is lower than an output power of the second power amplification unit.

[0005] In a second aspect, an embodiment of the present application provides a radio frequency architecture, comprising a plurality of radio frequency front-end modules, wherein the radio frequency front-end modules are the radio frequency front-end module of the first aspect; and different radio frequency front-end modules have different working frequency bands.

[0006] In a third aspect, an electronic device is provided, and the electronic device comprises the radio frequency architecture of the second aspect.

[0007] In the FEM provided by the embodiments of the present application, the power supply voltage of the low-power amplification unit is lower than the power supply voltage of the high-power amplification unit, i.e., the first power supply voltage of the first power amplification unit is lower than the second power supply voltage of the second power amplification unit, instead of using the same power supply voltage for the two power amplification units; in this way, when the first power amplification unit is working, it is beneficial to reduce the power consumption of the first power amplification unit.

[0008] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0009] The drawings incorporated in the specification and forming a part of it illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. It is clear that the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor.

[0010] Figure 1 Schematic diagram of direct connection for Wi-Fi terminal;

[0011] Figure 2 Schematic diagram of non-direct connection for Wi-Fi terminal;

[0012] Figure 3 Schematic diagram of circuit structure of Wi-Fi FEM of mobile phone terminal;

[0013] Figure 4 Schematic diagram of internal circuit structure of PA;

[0014] Figure 5 Schematic diagram of structure of FEM provided by embodiments of the present application Figure 1 ;

[0015] Figure 6 Schematic diagram of structure of FEM provided by embodiments of the present application Figure 2 ;

[0016] Figure 7 Schematic diagram of structure of FEM provided by embodiments of the present application Figure 3 ;

[0017] Figure 8 Schematic diagram of structure of FEM provided by embodiments of the present application Figure 4 ;

[0018] Figure 9Structure diagram of FEM provided for an embodiment of the present application Figure 5 ;

[0019] Figure 10 Structure diagram of FEM provided for an embodiment of the present application Figure 6 ;

[0020] Figure 11 Structure diagram of FEM provided for an embodiment of the present application Figure 7 ;

[0021] Figure 12 An exemplary structure diagram of FEM 5 provided for an embodiment of the present application Figure 1 ;

[0022] Figure 13 An exemplary structure diagram of FEM 5 provided for an embodiment of the present application Figure 2 ;

[0023] Figure 14 An exemplary structure diagram of FEM 5 provided for an embodiment of the present application Figure 3 ;

[0024] Figure 15 A diagram of a radio frequency architecture provided for an embodiment of the present application Figure 1 ;

[0025] Figure 16 A diagram of a radio frequency architecture provided for an embodiment of the present application Figure 2 ;

[0026] Figure 17 A diagram of a radio frequency architecture provided for an embodiment of the present application Figure 3 ;

[0027] Figure 18 An exemplary structure diagram of radio frequency architecture 15 provided for an embodiment of the present application

[0028] Figure 19 A structure diagram of an electronic device provided for an embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the following will further describe the specific technical solutions of the present application with reference to the drawings in the embodiments of the present application. The following embodiments are used to explain the present application, but are not used to limit the scope of the present application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing the embodiments of the present application only and is not intended to limit the present application.

[0031] In the following description, "some embodiments", "this embodiment", "embodiments of the present application" and the like refer to a subset of all possible embodiments, but can not necessarily refer to the same subset of all possible embodiments, and can or can not be mutually exclusive. For example, a specific embodiment can be referred to as "some embodiments", and another specific embodiment can also be referred to as "some embodiments", even though the two embodiments can be mutually exclusive.

[0032] The "first, second, third" and the like appearing in the embodiments of the present application are only for illustration and differentiation of the description objects, and do not have order, nor represent the special limitation of the number of devices in the embodiments of the present application, and cannot constitute any limitation on the embodiments of the present application.

[0033] The radio frequency architecture and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of radio frequency architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0034] In order to facilitate the understanding of the radio frequency front-end module provided by the embodiments of the present application, the related art is first introduced, and the research and analysis process of the inventor on the reason of high power consumption of the related art is described. It can be understood that the reason why the FEM supporting multiple power modes has high power consumption is obtained by the inventor through creative labor.

[0035] In recent years, terminal direct connection technology has been widely used. For example, Wi-Fi (Wireless Fidelity) P2P (Peer-to-Peer), also known as Wi-Fi Direct, is a kind of Wi-Fi terminal direct connection technology. Compared with the traditional way, such as Figure 1 As shown, it allows terminal 101 and terminal 102 to communicate directly through Wi-Fi (Direct), without connecting to a shared Wi-Fi network or using other intermediary devices 201 (see Figure 2 ).

[0036] This terminal direct connection technology can be used in various scenarios, such as wireless projection, mobile phone moving, file exchange, etc. However, in this scenario, the terminal transmits a large amount of data for a long time, the working bandwidth is wide, and the system consumes a lot of power, which will cause the problem of endurance and heating, so it is urgent to reduce the power consumption in this application scenario.

[0037] It can be understood that, as Figure 1As shown, since Wi-Fi P2P is generally used for near field communication, the communication distance is within 5m, at this time the terminal is close, the signal condition is good, and therefore it is not necessary to perform high-power transmission, and the power of the antenna port is often only 5-10dbm, in this case, the Wi-Fi FEM works in a low-power mode (LPM) to obtain a suitable output power.

[0038] Figure 3 is a schematic diagram of the circuit structure of the Wi-Fi FEM of a mobile terminal, as shown in Figure 3 As shown, the Wi-Fi FEM 3 includes a GPIO interface (including Figure 3 four logic interfaces in the PAEN, LNAEN, SEL1, and SEL2), a VCC port, a VDD port, a control unit 301, PA1, PA2, LNA, a TX port, an RX port, SPDT, SP3T, SPST, a coupler 302, and an antenna port ANT.

[0039] The control unit 301 includes logic control and power management circuits, and the radio frequency power amplifier is powered by VCC, that is, PA1 and PA2 share a power supply terminal VCC, and are both powered by VCC. PA1 is a small power power amplifier (PA) that supports small power output, and PA2 is composed of multiple PAs and can support medium and high power signal output; LNA (Low Noise Amplifier) is a low noise amplifier used to amplify the received weak signal, which is powered by VDD. At present, in the FEM 3 of the mobile terminal, VCC is generally 3.8V power supply, and VDD is 1.8V power supply.

[0040] The specific signal flow description of the Wi-Fi FEM 3 when working is as follows:

[0041] When transmitting uplink signals, the uplink signals / radio frequency signals output from the SOC enter the TX path, and the system controls the FEM 3 to work in different power modes (Modes) according to the signal strength indication, and through the GPIO interface, the transmission of the FEM 3 can support a high power mode (High Power Mode, HPM), a middle power mode (Middle Power Mode, MPM), and a low power mode (Low Power Mode, LPM), wherein the HPM and the MPM are implemented through the PA2, and the LPM is implemented by the PA1. The specific process is as follows:

[0042] When the mobile terminal performs far field work, the FEM 3 transmits a large power, at this time the SPDT is connected to the PA2, and the SP3T is also connected to the PA2, and the radio frequency signal output from the SOC is output to the antenna port ANT through the SPDT, the PA2, the SP3T, the coupler 302;

[0043] When the mobile phone terminal is working in the near field, FEM 3 transmits low power. At this time, SPDT hits PA1, SP3T also hits PA1, and the RF signal output from SOC passes through SPDT, PA1, SP3T, and coupler 302 to the antenna port ANT.

[0044] When receiving downlink signals, the SP3T hits the LNA, and the signal received by the antenna port ANT is amplified by the coupler 302, the SP3T and the LNA and then output to the RX port.

[0045] The reasons why FEM supporting multiple power modes has high power consumption are analyzed as follows.

[0046] Figure 3 In the FEM shown, PA1 is powered by VCC at 3.8V, while VDD powers the LNA at 1.8V. During near-field communication, the PA output power does not need to be too high; a Prated of 10dBm is sufficient. Considering the peak-to-average power ratio, PA1's saturation power is approximately 17dBm, or 0.05W. Figure 4 The internal circuit structure diagram of a PA is shown in Figure 1. The optimal load Ropt of the PA can be calculated using formula (1):

[0047]

[0048] If VCC is 3.8V, P sat For a power of 0.05W, Ropt = 150Ω, resulting in a 3:1 impedance ratio with a 50Ω load, and relatively low matching efficiency. See the calculation and analysis below for reasons why the matching efficiency is low.

[0049] On the other hand, if the quiescent current is I CQ , PA1 works in the linear region, power consumption P dis Calculated by the following formula (2):

[0050] P dis =VCC*I CQ (2);

[0051] It can be seen that under the same static current, the power consumption P dis It is proportional to the voltage VCC. The higher the voltage, the higher the power consumption. Figure 3 In the FEM architecture shown, PA1 using VCC as power supply will result in high power consumption and low matching efficiency. Based on the above analysis, if Ropt = 50Ω is to be achieved, the following formula (3) can be derived from formula (1):

[0052]

[0053] That is, the PA with 2.23V bias can obtain Ropt close to 50 ohms.

[0054] From Figure 3 It can be known from the FEM 3 architecture that the only power supply that can be obtained in addition to VCC is VDD, and if VDD=1.8V is used to bias PA1, Ropt=32.4Ω can be calculated by formula (1); it can be seen that the optimal impedance of PA1 and the impedance of the load at this time is 1.5, and the impedance ratio is reduced by 50% compared with the previous technical solution. Under different impedance ratios, the loss of the matching network is calculated by the following formula (4) and formula (5):

[0055]

[0056] IL=1 / (1+Q / Q L ) (5);

[0057] Suppose the Q L of the matching element is 25, through calculation, the losses IL corresponding to the two impedance ratios (R1 / R2) (1.5 and 3:1) are 0.126dB and 0.239dB respectively, so the matching efficiency of PA1 is higher when 1.8V bias is used.

[0058] On the other hand, the static current is generally related to the process, and if I QC =100mA, the power consumption is respectively:

[0059] P dis =1.8*0.1=0.18w;

[0060] P dis =3.8*0.1=0.38w;

[0061] It can be seen that the PA power consumption when 1.8V power supply is 0.2W lower than that when 3.8V power supply, and the power consumption is reduced by 52.6%.

[0062] From the above research and analysis, it can be seen that for PA1, the low-voltage power supply mode can realize lower power consumption in near-field communication, and the direct power consumption of PA1 is reduced by 52.6%, and the matching loss IL is reduced by 0.113dB.

[0063] Therefore, the FEM provided in the embodiments of the present application can be any FEM supporting at least two power modes; wherein the power modes can also be understood as power amplification modes, different power modes are supported by different power amplification units, and the output powers of different power amplification units are different.

[0064] Figure 5 Structure of the FEM provided in the embodiments of the present application Figure 1 As shown in Figure 5 The FEM 5 includes a TX port 501, a control unit 502, a first power amplification unit 503, a second power amplification unit 504, a first switch unit 505, and an antenna port ANT; wherein,

[0065] The control unit 502 is configured to control the first switch unit 505 to turn on a first transmission channel from the TX port to the antenna port ANT according to a first control signal, so as to output a first uplink signal output by the TX port to the antenna port ANT after amplification by the first power amplification unit 503.

[0066] The control unit 502 is further configured to control the first switch unit 505 to turn on a second transmission channel from the TX port to the antenna port ANT according to a second control signal, so as to output a second uplink signal output by the TX port to the antenna port ANT after amplification by the second power amplification unit 504.

[0067] The first supply voltage of the first power amplification unit 503 is lower than the second supply voltage of the second power amplification unit 504, and the output power of the first power amplification unit 503 is lower than the output power of the second power amplification unit 504.

[0068] It can be understood that in the FEM 5 provided in the embodiments of the present application, the supply voltage of the small power amplification unit is lower than the supply voltage of the large power amplification unit, that is, the first supply voltage of the first power amplification unit 503 is lower than the second supply voltage of the second power amplification unit 504, rather than both power amplification units using the same supply voltage; in this way, when the first power amplification unit 503 is working, it is beneficial to reduce the power consumption of the first power amplification unit 503.

[0069] In the embodiment of the present application, the first power amplification unit 503 and the second power amplification unit 504 each include at least one power amplifier. For example, the first power amplification unit 503 includes one power amplifier, and the second power amplification unit 504 includes a plurality of cascaded power amplifiers. However, the structure of the first power amplification unit 503 and the second power amplification unit 504 in the embodiment of the present application is not limited to this. In general, the output power of the first power amplification unit 503 is lower than the output power of the second power amplification unit 504.

[0070] In addition, in the embodiment of the present application, the power supply mode of the first power amplification unit 503 and the second power amplification unit 504 is not limited. In general, the first supply voltage of the first power amplification unit 503 is lower than the second supply voltage of the second power amplification unit 504. For example, the first power amplification unit 503 and the second power amplification unit 504 can be powered by the power supply modes of Embodiment 1, Embodiment 2, or Embodiment 3.

[0071] In Embodiment 1, as shown in Figure 6 the FEM 5 further includes a VDD port and a VCC port; the VDD port is connected with the first power supply module 601; the control unit 502 is configured to convert the voltage input by the first power supply module 601 to the VDD port into the first supply voltage and provide the first supply voltage to the first power amplification unit 503; the VCC port is connected with the second power supply module 602; and the control unit 502 is configured to convert the voltage input by the second power supply module to the VCC port into the second supply voltage and provide the second supply voltage to the second power amplification unit 504.

[0072] Based on Embodiment 1, further, in some embodiments, as shown in Figure 7 the FEM 5 further includes an LNA unit 701 and an RX port 702; the control unit 502 is configured to control the first switch unit 505 to turn on a first receiving channel from the antenna port ANT to the RX port 702 according to a third control signal, so as to amplify the first downlink signal received by the antenna port ANT via the LNA unit 701 and output the first downlink signal to the RX port 702.

[0073] Based on Embodiment 1, in some embodiments, as shown in Figure 7 the VDD port of the FEM 5 is connected with the first power supply module 601; and the control unit 502 is further configured to convert the voltage input by the first power supply module 601 to the VDD port into the first supply voltage and provide the first supply voltage to the LNA unit 701.

[0074] In Embodiment 2, as shown in Figure 8 the FEM 5 further includes a VCC port and a voltage conversion unit 801; the VCC port is connected with the second power supply module 602;

[0075] The control unit 502 is configured to convert the voltage input by the second power module 602 to the VCC port into a second supply voltage and provide the second supply voltage to the second power amplification unit 504 and the voltage conversion unit 801 (for example, the voltage conversion unit 801 can be a DC-DC converter).

[0076] The voltage conversion unit 801 is configured to convert the second supply voltage into a first supply voltage and provide the first supply voltage to the first power amplification unit 503.

[0077] Based on Embodiment 2, further, in some embodiments, as shown in FIG. 5B, the FEM 5 further includes an LNA unit 701 and an RX port 702; and the control unit 502 is configured to control the first switch unit 505 to turn on a first receiving channel from the antenna port ANT to the RX port 702 according to a third control signal, so as to output a first downlink signal received by the antenna port ANT to the RX port 702 via the LNA unit 701. Figure 9 Based on Embodiment 2, in some embodiments, as shown in FIG. 5C, the FEM 5 further includes a VDD port connected with the first power module 601; and the control unit 502 is further configured to convert the voltage input by the first power module 601 to the VDD port into a first supply voltage and provide the first supply voltage to the LNA unit 701.

[0078] Figure 9 Based on Embodiment 2, in some embodiments, as shown in FIG. 5C, the FEM 5 further includes a VDD port connected with the first power module 601; and the control unit 502 is further configured to convert the voltage input by the first power module 601 to the VDD port into a first supply voltage and provide the first supply voltage to the LNA unit 701.

[0079] In Embodiment 3, as shown in FIG. 6A, the FEM 5 further includes a first VCC port (VCC1) and a second VCC port (VCC2); the first VCC port is connected with a third power module 1001; the control unit 502 is configured to convert the voltage input by the third power module 1001 to the first VCC port into a first supply voltage and provide the first supply voltage to the first power amplification unit 503; the second VCC port is connected with a fourth power module 1002; and the control unit 502 is configured to convert the voltage input by the fourth power module 1002 to the second VCC port into a second supply voltage and provide the second supply voltage to the second power amplification unit 504. Figure 10 Alternatively, in another embodiment, the second VCC port is connected with the third power module 1001, and the control unit 502 is configured to convert the voltage input by the third power module 1001 to the second VCC port into a second supply voltage and provide the second supply voltage to the second power amplification unit 504. For the embodiment in which the first VCC port and the second VCC port are both connected with the third power module 1001, the connection of the first VCC port and the second VCC port is different supply terminals of the third power module 1001.

[0080] Alternatively, in another embodiment, the second VCC port is connected with the third power module 1001, and the control unit 502 is configured to convert the voltage input by the third power module 1001 to the second VCC port into a second supply voltage and provide the second supply voltage to the second power amplification unit 504. For the embodiment in which the first VCC port and the second VCC port are both connected with the third power module 1001, the connection of the first VCC port and the second VCC port is different supply terminals of the third power module 1001.

[0081] Alternatively, in another embodiment, the second VCC port is connected with the third power module 1001, and the control unit 502 is configured to convert the voltage input by the third power module 1001 to the second VCC port into a second supply voltage and provide the second supply voltage to the second power amplification unit 504. For the embodiment in which the first VCC port and the second VCC port are both connected with the third power module 1001, the connection of the first VCC port and the second VCC port is different supply terminals of the third power module 1001.Further, in some embodiments, as shown in FIG. 6, the FEM 5 further comprises an LNA unit 701 and an RX port 702; wherein the control unit 502 is configured to control the first switch unit 505 to turn on a first receiving channel from the antenna port ANT to the RX port 702 according to a third control signal, so as to output the first downlink signal received by the antenna port ANT to the RX port 702 via the LNA unit 701. Figure 11

[0082] Further, in some embodiments, as shown in FIG. 6, the FEM 5 further comprises an LNA unit 701 and an RX port 702; wherein the control unit 502 is configured to control the first switch unit 505 to turn on a first receiving channel from the antenna port ANT to the RX port 702 according to a third control signal, so as to output the first downlink signal received by the antenna port ANT to the RX port 702 via the LNA unit 701. Figure 11

[0083] In a possible implementation, the control unit has a GPIO interface, which can include four logic interfaces, such as PAEN, LNAEN, SEL1 and SEL2.

[0084] For example, the FEM 5 supports the working frequency band of the Wi-Fi signal, and can be referred to as a Wi-Fi FEM based on this. Figure 12 An exemplary structure of the FEM 5 provided in the embodiments of the present application is shown in FIG. 5. Figure 1 That is, the structure of the Wi-Fi FEM is shown in FIG. 5, wherein the PA1 is powered by VDD. Figure 12 Of course, the Wi-Fi FEM 12 shown in FIG. 6 is only an exemplary application of the FEM 5, and does not limit the structure of the FEM 5. Figure 12 Of course, the Wi-Fi FEM 12 shown in FIG. 6 is only an exemplary application of the FEM 5, and does not limit the structure of the FEM 5.

[0085] It can be understood that, since the Wi-Fi communication system is a TDD system, the TX does not work when the RX works, that is, the LNA does not work when the PA1 works, so the PA1 can share the VDD with the LNA without affecting each other. In the actual system, the VDD is powered by the PMIC, which can provide a stable and reliable bias condition for the PA, and the PA1 is a small power PA with relatively small power consumption, and the load capacity of the PMIC can also meet the use requirements. Therefore, in the embodiments of the present application, the power consumption can be greatly reduced through simple power supply architecture adjustment, and the cost will not be increased. This scheme is very suitable for near field communication scenarios.

[0086] For example, the FEM 5 supports the working frequency band of the Wi-Fi signal, and can be referred to as a Wi-Fi FEM based on this. Figure 13 An exemplary structure of the FEM 5 provided in the embodiments of the present application is shown in FIG. 5. Figure 2 ​​Another structure diagram of Wi-Fi FEM, as shown in Figure 13 The power supply of PA1 can also not come from VDD, but a DC-DC integrated inside the FEM, and the voltage of VCC is reduced to a suitable low voltage (such as directly to 2.23V or 1.8V) through the DC-DC. This way is also possible, but it will increase the cost and design complexity.

[0087] For example, Figure 14 An exemplary structure diagram of FEM 5 provided for the embodiments of the present application is shown in Figure 3 A structure diagram of Wi-Fi FEM 14, as shown in Figure 14 PA1 and PA2 can also be powered separately, PA1 is powered by low-voltage VCC1, and PA2 is powered by high-voltage VCC2. This scheme can also produce the same effect. In application, VCC1 can be connected together with VDD through external wiring, or connected to other power supply in the system.

[0088] It should be noted that in the FEM 5 shown in Figure 12 , Figure 13 and Figure 14 PA1 is an example of the first power amplification unit 503, PA2 is composed of multiple stages of PA, PA2 is an example of the second power amplification unit 504, and LNA is an example of the LNA unit 701; the first switch unit 505 includes single-pole double-throw switch SPDT, single-pole single-throw switch SPST, and single-pole three-throw switch SP3T; the GPIO interface (i.e. four logic interfaces: PAEN, LNAEN, SEL1 and SEL2) is used to input control signals to control the conduction direction of the above switches.

[0089] In some embodiments, as shown in Figures 12-14 FEM 5 further includes a coupler 1201.

[0090] It can be understood that any FEM 5 provided by the embodiments of the present application can reduce the single-transmit power consumption by 0.2W under LPM, with a reduction ratio of 52.6%, and the PA matching efficiency is higher, and the corresponding matching loss can be reduced by 0.113dB, compared with the traditional FEM architecture without changing the overall framework inside the existing FEM. In the near-field P2P scenario, if all four paths of a mobile phone containing four FEMs are opened, the power consumption can be reduced by 0.8W. These benefits can greatly improve the endurance and performance of the terminal.

[0091] In the embodiments of the present application, the power of the PA and the optimal load when the near field communication is combined are derived to obtain a theoretical basis for effectively reducing the power consumption of the PA by using a low-voltage power supply design, so as to realize the power consumption reduction and efficiency improvement of the PA by adjusting the PA bias mode inside the FEM. The improvement of the FEM 5 has a very low cost, but can bring greater power consumption benefits.

[0092] The embodiments of the present application also provide a radio frequency architecture, Figure 15 The radio frequency architecture provided by the embodiments of the present application is shown in the schematic diagram Figure 1 As shown in Figure 15 The radio frequency architecture 15 includes a plurality of FEMs 5, and the working frequency bands of the wireless signals supported by different FEMs 5 in the radio frequency architecture 15 can be different; that is, the working frequency bands of different FEMs 5 are different.

[0093] In some embodiments, as shown in Figure 16 The radio frequency architecture 15 further includes an RFIC 1601 and a modem 1602; wherein,

[0094] The modem 1602 is configured to output the second uplink signal after modulation processing to the RFIC 1601, and the RFIC 1601 is configured to output the obtained first uplink signal to the TX port 501 after signal processing on the second uplink signal after modulation processing.

[0095] In some embodiments, the RFIC 1601 is further configured to output the obtained second downlink signal to the modem 1602 after signal processing on the downlink signal output by the RX port of the FEM 5, and the modem 1602 is configured to perform demodulation processing on the second downlink signal.

[0096] In some embodiments, as shown in Figure 17 The radio frequency architecture 15 further includes a filter circuit 1701 and an antenna 1702 corresponding to the FEM 5; wherein the first end of the filter circuit 1701 is connected with the antenna port ANT of the FEM 5, and the second end of the filter circuit 1701 is connected with the antenna 1702.

[0097] The filter circuit 1701 is configured to perform filtering processing on the radio frequency signal output by the FEM 5 or the downlink signal received by the antenna 1702.

[0098] Exemplarily, Figure 18 An exemplary structure schematic diagram of the radio frequency architecture 15 provided by the embodiments of the present application is shown in Figure 18 As shown in the figure, there are generally four Wi-Fi FEMs in the current middle and high-end mobile phones.

[0099] The Wi-Fi SOC includes an RFIC and a Modem, responsible for the transmission and reception of radio frequency signals and modulation and demodulation. The 2G FEM is a 2.4G radio frequency front-end transceiver module, including radio frequency power amplifiers, low noise amplifiers, switches, couplers and other devices; the 5G FEM is a 5G / 6G radio frequency front-end transceiver module, including radio frequency power amplifiers, low noise amplifiers, switches, couplers and other devices; the internal architecture of the four FEMs is similar, and specific reference is made to the description of FEM 5 above.

[0100] The electronic device provided by the embodiment of the present application, Figure 19 The structure diagram of the electronic device provided by the embodiment of the present application is shown in Figure 19 As shown in the figure, the electronic device 19 includes the radio frequency architecture 15 described in the embodiment of the present application.

[0101] In the embodiment of the present application, the type of the electronic device is not limited, and the electronic device can be various devices. For example, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a wearable device (such as a watch, a bracelet, a helmet and glasses), a television, etc.

[0102] It should be understood that the "one embodiment" or "an embodiment" or "some embodiments" or "in one possible implementation" or "in another possible implementation" or "in yet another possible implementation" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" or "in some embodiments" or "in one possible implementation" or "in another possible implementation" or "in yet another possible implementation" appearing throughout the specification does not necessarily mean the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the serial number of the above processes does not mean the execution order, and the execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The serial number of the above embodiments of the present application is only for description, not representing the advantages and disadvantages of the embodiments. The above description of each embodiment tends to emphasize the differences between each embodiment, and the same or similar parts can be referred to each other. For the sake of brevity, this paper will not repeat here.

[0103] The term "and / or", merely describes an associated relationship, which means that there can be three relationships, for example, object A and / or object B, which can represent: the existence of object A alone, the existence of object A and object B, and the existence of object B alone.

[0104] It should be noted that, in this document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed, or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0105] The features disclosed in the several radio frequency front-end module embodiments provided by the present application can be arbitrarily combined without conflict, to obtain new radio frequency front-end module embodiments.

[0106] The features disclosed in the several radio frequency architecture embodiments provided by the present application can be arbitrarily combined without conflict, to obtain new radio frequency architecture embodiments.

[0107] The above is only an embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A radio frequency front-end module, characterized in that: The RF front-end module includes: a TX port, a control unit, a first power amplifier unit, a second power amplifier unit, a first switch unit and an antenna port; wherein, The control unit is configured to control the first switch unit to conduct the first transmission channel from the TX port to the antenna port according to the first control signal, so as to amplify the first uplink signal output by the TX port through the first power amplifier unit and then output it to the antenna port; The control unit is further configured to control the first switch unit to conduct the second transmission channel from the TX port to the antenna port according to the second control signal, so as to amplify the second uplink signal output by the TX port through the second power amplifier unit and then output it to the antenna port; The first power supply voltage of the first power amplifying unit is lower than the second power supply voltage of the second power amplifying unit, and the output power of the first power amplifying unit is lower than the output power of the second power amplifying unit.

2. The RF front-end module according to claim 1, wherein: The RF front-end module also includes a VDD port and a VCC port; wherein, The VDD port is connected to the first power supply module; the control unit is used to convert the voltage input to the VDD port by the first power supply module into the first power supply voltage and then provide it to the first power amplification unit; The VCC port is connected to the second power supply module; the control unit is used to convert the voltage input to the VCC port by the second power supply module into the second power supply voltage and then provide it to the second power amplification unit.

3. The RF front-end module according to claim 1, wherein: The RF front-end module further includes a VCC port and a voltage conversion unit; wherein the VCC port is connected to the second power supply module; The control unit is configured to convert the voltage input to the VCC port by the second power module into the second power supply voltage and then provide the second power supply voltage to the second power amplification unit and the voltage conversion unit; The voltage conversion unit is used to convert the second supply voltage into the first supply voltage and then provide it to the first power amplification unit.

4. The RF front-end module according to claim 1, wherein: The RF front-end module also includes a first VCC port and a second VCC port; wherein, The first VCC port is connected to the third power supply module; the control unit is used to convert the voltage input to the first VCC port by the third power supply module into the first power supply voltage and then provide it to the first power amplification unit; The second VCC port is connected to the fourth power module or the third power module; the control unit is used to convert the voltage input to the second VCC port by the fourth power module or the third power module into the second power supply voltage and then provide it to the second power amplification unit.

5. The RF front-end module according to any one of claims 2 to 4, wherein: The RF front-end module also includes an LNA unit and an RX port; wherein, The control unit is configured to control the first switch unit to conduct the first receiving channel from the antenna port to the RX port according to a third control signal, so as to amplify the first downlink signal received by the antenna port through the LNA unit and output the amplified signal to the RX port.

6. The RF front-end module according to claim 5, wherein: The VDD port of the RF front-end module is connected to the first power supply module; The control unit is further configured to convert the voltage inputted to the VDD port by the first power module into a first power supply voltage and then provide the first power supply voltage to the LNA unit.

7. A radio frequency architecture, characterized in that: The RF architecture includes multiple RF front-end modules, and the RF front-end module is the RF front-end module according to any one of claims 1 to 6; wherein different RF front-end modules have different operating frequency bands.

8. The radio frequency architecture according to claim 7, wherein: The radio frequency architecture also includes an RFIC and a modem; wherein, The modem is used to modulate the second uplink signal and output it to the RFIC, and the RFIC is used to perform signal processing on the modulated second uplink signal to output the first uplink signal to the TX port.

9. The radio frequency architecture according to any one of claims 7-8, wherein: The RF architecture further includes a filter circuit and an antenna corresponding to the RF front-end module; wherein a first end of the filter circuit is connected to the antenna port of the RF front-end module, and a second end of the filter circuit is connected to the antenna; The filtering circuit is used to filter the radio frequency signal output by the radio frequency front-end module or the downlink signal received by the antenna.

10. An electronic device, characterized in that: The electronic device comprises the radio frequency architecture described in any one of claims 7 to 9.

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