WO2022257651A1 - Module de transmission radiofréquence, système radiofréquence et dispositif de communication - Google Patents

Module de transmission radiofréquence, système radiofréquence et dispositif de communication Download PDF

Info

Publication number
WO2022257651A1
WO2022257651A1 PCT/CN2022/090883 CN2022090883W WO2022257651A1 WO 2022257651 A1 WO2022257651 A1 WO 2022257651A1 CN 2022090883 W CN2022090883 W CN 2022090883W WO 2022257651 A1 WO2022257651 A1 WO 2022257651A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
radio frequency
power amplifier
transmitting module
unit
Prior art date
Application number
PCT/CN2022/090883
Other languages
English (en)
Chinese (zh)
Inventor
岳仲博
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2022257651A1 publication Critical patent/WO2022257651A1/fr

Links

Images

Classifications

    • 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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC

Definitions

  • the embodiments of the present application relate to the technical field of communication, and in particular, to a radio frequency transmitting module, a radio frequency system and communication equipment.
  • the transmission power corresponding to the transmission power level PC2 needs to reach 26dBm, generally by setting the boost power supply (for example, Buck -Boost power supply) to increase the power supply voltage of the power amplifier in the radio frequency transmission front-end module, to increase the output power of the power amplifier.
  • the boost power supply for example, Buck -Boost power supply
  • the cost of the boosted power supply is high.
  • a radio frequency transmitting module a radio frequency system and a communication device are provided.
  • a radio frequency transmitting module comprising:
  • a first power module configured to provide a preset power supply voltage
  • the first transmitting module is configured with a power port connected to the first power module, a first input port used to connect to the radio frequency transceiver, and a first output port used to connect to the antenna, wherein the first transmitting module Also includes:
  • a power distribution unit the input end of the power distribution unit is connected to the first input end, and is used to perform power distribution processing on the received high-frequency signal of the first standard;
  • a plurality of first power amplifiers the input ends of the plurality of first power amplifiers are respectively connected to the plurality of output ends of the power distribution unit in one-to-one correspondence, and the power supply ends of the plurality of first power amplifiers are respectively connected to the plurality of output ends of the power distribution unit.
  • the power port is connected, and the first power amplifier is used to amplify the power of the high-frequency signal under the action of the power supply voltage;
  • a power combining unit the plurality of input ends of the power combining unit are respectively connected to the output ends of a plurality of first power amplifiers in one-to-one correspondence, and the output ends of the first power combining unit are connected to the first output port, using Combining output powers of multiple first power amplifiers to output high frequency signals with target power.
  • a radio frequency system comprising: a radio frequency transceiver, a first antenna, and the aforementioned radio frequency transmitting module connected to the radio frequency transceiver.
  • a radio frequency system comprising: a radio frequency transceiver, a first antenna, a second antenna, a second transmitting module, a second power supply module, and the aforementioned radio frequency transmitting module;
  • the second transmitting module includes:
  • a fifth power amplifier the input terminal of the fifth power amplifier is connected to the radio frequency transceiver, the power supply terminal of the fifth power amplifier is connected to the second power supply module, and is used under the action of the power supply voltage , performing power amplification on the received low-frequency signal of the first standard;
  • a sixth power amplifier the input end of the sixth power amplifier is connected to the radio frequency transceiver, the power supply end of the sixth power amplifier is connected to the second power supply module, and is used to operate under the action of the power supply voltage , performing power amplification on the received radio frequency signal of the second standard;
  • the second switch unit includes two first terminals and two second terminals, wherein the two first terminals are respectively connected to the output terminal of the fifth power amplifier and the output terminal of the sixth power amplifier in a one-to-one correspondence, so A first end of the second switch unit is connected to the second antenna; wherein,
  • the first switch unit further includes a first terminal connected to the other second terminal of the second switch unit, wherein the first switch unit is also used for selectively conducting the sixth power amplifier and A path between the first antenna and the second antenna.
  • a communication device including: the aforementioned radio frequency system.
  • Fig. 1 is one of structural block diagrams of the radio frequency transmitting module of an embodiment
  • Fig. 2 is a schematic diagram of the principle of the first power module of an embodiment
  • Fig. 3 is a schematic diagram of the internal structure of the first power amplifier of an embodiment
  • Fig. 4 is a schematic diagram of an internal structural heating area of a power amplifier in the related art of an embodiment
  • Fig. 5 is a schematic diagram of the internal structure heating area of two first power amplifiers of an embodiment
  • Fig. 6 is the second structural block diagram of the radio frequency transmission module of an embodiment
  • Fig. 7 is the third structural block diagram of the radio frequency transmission module of an embodiment
  • Fig. 8 is the fourth structural block diagram of the radio frequency transmission module of an embodiment
  • Fig. 9 is the fifth structural block diagram of the radio frequency transmission module of an embodiment
  • Fig. 10 is the sixth structural block diagram of the radio frequency transmitting module of an embodiment
  • Fig. 11 is the seventh structural block diagram of the radio frequency transmission module of an embodiment
  • Fig. 12 is the eighth structural block diagram of the radio frequency transmission module of an embodiment
  • Fig. 13 is one of structural block diagrams of the radio frequency system of an embodiment
  • Fig. 14 is the second structural block diagram of the radio frequency system of an embodiment
  • FIG. 15 is a schematic diagram of the principle of a 2G call in an embodiment
  • FIG. 16 is a third structural block diagram of a radio frequency system according to an embodiment.
  • first, second and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element.
  • a first power amplifier could be termed a second power amplifier, and, similarly, a second power amplifier could be termed a first power amplifier, without departing from the scope of the present application.
  • Both the first power amplifier and the second power amplifier are power amplifiers, but they are not the same power amplifier.
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • plurality means at least two, such as two, three, etc., unless otherwise specifically defined.
  • severeal means at least one, such as one, two, etc., unless otherwise specifically defined.
  • the radio frequency transmission module involved in the embodiment of the present application can be applied to a communication device with a wireless communication function, and the communication device can be a handheld device, a vehicle device, a wearable device, a computing device or other processing devices connected to a wireless modem, and various Various forms of user equipment (User Equipment, UE), such as mobile phones, mobile stations (Mobile Station, MS) and so on.
  • UE User Equipment
  • the devices mentioned above are collectively referred to as communication devices.
  • the radio frequency transmitting module includes a first transmitting module 110 and a first power supply module 120 .
  • the first transmitting module 110 can be understood as a package structure or an integrated chip, which is configured with a plurality of ports, for example, a power port VCC, a first input port INPUT, and a first output port OUTPUT1.
  • the plurality of ports may be understood as radio frequency pin terminals of the first transmitting module 110, for connecting with various external devices.
  • the power port VCC is used to receive the preset power supply voltage provided by the first power module 120;
  • the first input port INPUT is used to connect with the radio frequency transceiver, and is used to receive the radio frequency signal generated by the radio frequency transceiver;
  • the first output port OUTPUT1 is used to It is connected with an antenna, a radio frequency switch or a filtering unit, and is used for outputting the radio frequency signal processed by the first transmitting module 110 .
  • the radio frequency signal may include the low frequency (Low band, LB) signal, the middle frequency (Middle band, MB) signal and the high frequency (High Band, HB) signal of the first standard, and may also include the low frequency signal and the high frequency signal of the second standard. Signal.
  • the radio frequency signals of different standards can support different services.
  • the radio frequency signals of the first standard can be mainly used to support Internet access services;
  • the radio frequency signals of the second standard can be mainly used to support voice call services.
  • the first standard may be a 4G standard and/or a 5G standard.
  • the second standard may be a 2G communication standard, for example, a Global System for Mobile Communications (Global System for Mobile Communications, GSM) communication standard.
  • GSM Global System for Mobile Communications
  • the first standard is the 5G standard as an example for description.
  • the corresponding frequency bands of the low-frequency, medium-frequency and high-frequency signals of the first standard are shown in Table 1.
  • Table 1 shows the corresponding frequency bands of the low frequency, intermediate frequency and high frequency signals of the first standard
  • the 3rd Generation Partnership Project 3rd Generation Partnership Project, 3GPP
  • 3rd Generation Partnership Project 3rd Generation Partnership Project
  • MIMO Multiple-Input Multiple-Output
  • Power Class 2 power levels Power Class 2 power levels.
  • the embodiment of the present application uses the characteristic improvement of the Power Class 2 power level for description.
  • the transmit power levels of 5G communication equipment currently defined by 3GPP are mainly shown in Table 2.
  • Table 2 shows the overall transmission power level of communication equipment defined by 3GPP
  • the output power of the radio frequency signal of the first standard in most frequency bands needs to meet the PC2 power level.
  • the output power of the radio frequency signal in the n41 frequency band needs to meet the requirement of the PC2 power level.
  • the communication distance between the communication equipment and the base station is directly related to the transmission power, and the total spatial attenuation of electromagnetic waves can be calculated according to the following formula:
  • ATT refers to the total attenuation of the space, and the unit of the total attenuation of the space is dB;
  • F refers to the frequency of the radio frequency signal, and the unit of the frequency is MHz;
  • D refers to the communication distance between the communication equipment and the base station, and the unit of the communication distance for KM.
  • the base station has the same reception sensitivity for signals in the same frequency band and the same bandwidth, so the ATT mainly depends on the transmission power; the higher the transmission power, the greater the total space attenuation, and the greater the communication distance D between the communication equipment and the base station. Since the PC2 power level is 3dB higher than PC3, and the total space attenuation is also 3dB higher than PC3, according to the above formula, the communication distance of a communication device with a PC2 power level is 1.4 times that of a communication device with a PC3 power level. If the communication distance is increased, the communication performance of the mobile terminal can be improved, and the base station can cover a larger radiation range, which can reduce the number of base station construction and direct infrastructure investment, such as maintenance costs and electricity costs.
  • the first transmitting module 110 further includes a power distribution unit 111 , a power combining unit 112 and a plurality of first power amplifiers 113 .
  • the input terminal of the power distribution unit 111 is connected to the first input port INPUT1, and the multiple output terminals of the power distribution unit 111 are respectively connected to the input terminals of the multiple first power amplifiers 113 in a one-to-one correspondence, which is used for the first standard High frequency signals are processed for power distribution.
  • the power distribution unit 111 may perform equal-power or unequal-power distribution processing on the received high-frequency signals of the first standard.
  • the power distributing unit 111 may be a device having a power distributing function such as a power divider or a combiner.
  • the number of output terminals of the power distribution unit 111 and the number of input terminals of the power combining unit 112 are respectively associated with the quantity of the first power amplifier 113, for example, the number of output terminals of the first power divider and the number of input terminals of the power combining unit 112 are both It is equal to the number of the first power amplifiers 113 .
  • the power distribution unit 111 may be an n-way power distributor, where n is a positive integer greater than or equal to 2.
  • the n output terminals of the n-way power divider are respectively connected to the input terminals of the n first power amplifiers 113 in a one-to-one correspondence.
  • the power supply terminals of the first power amplifiers 113 are respectively connected to the power port VCC, and the first power amplifiers 113 are used to amplify the power of the high-frequency signal of the first standard under the action of the power supply voltage.
  • the output end of each first power amplifier 113 is respectively connected with each input end of the power combining unit 112, wherein, each first power amplifier 113 can amplify and process the high-frequency signal received by the first standard at the same time, and The amplified high-frequency signal of the first system is output to the power combining unit 112 .
  • a plurality of input terminals of the power combining unit 112 are respectively connected to the output terminals of a plurality of first power amplifiers 113 in a one-to-one correspondence, and the output terminals of the power combining unit 112 are connected with the first output port OUTPUT1 for multiple first power amplifiers
  • the output power of 113 is combined to output a high frequency signal with target power.
  • the number of the first power amplifier 113 is two, its power combining unit 112 can be a dual power combining unit 112; if the number of the first power amplifier 113 is three, its power combining unit 112 can be three Channel power combining unit 112 and so on.
  • the power combining unit 112 can simultaneously receive the high-frequency signals of the first standard output by the first power amplifiers 113, and combine the output power of the high-frequency signals of the first standards, so that the output power of the high-frequency signals of the first standard can be output to the first output
  • the power value of the high-frequency signal of the first standard at the port OUTPUT1 reaches the target power.
  • the target power may be understood as the lowest standard power of the frequency band signal that can support the corresponding standard, for example, the lowest standard of the high frequency signal of the first standard is 33dBm.
  • the output power of the power combining unit 112 after the power combining process can exceed 2W (33dBm), so as to satisfy the communication standard of the high-frequency signal of the first standard at the same time.
  • the first power module 120 is configured to provide a preset power supply voltage.
  • the power supply voltage Vcc provided by the first power supply module 120 can supply power to each power amplifier in the first transmission module. Specifically, the power supply voltage Vcc provided by the first power module 120 can be transmitted to the power supply terminal of the first power amplifier 113 through the power port VCC, so as to provide power for the first power amplifier 113 .
  • the first power supply module 120 may adopt a step-down power supply (Buck Source), and the supply voltage Vcc at its output terminal is between 3.4V-4.2V.
  • the step-down power supply can be understood as an output voltage Vcc_OUT lower than the input voltage Vcc_IN, that is, a step-down adjustable regulated DC power supply, as shown in FIG. 2 , Vcc_OUT ⁇ Vcc_IN.
  • the input voltage Vcc_IN of the first battery module may be the output voltage of the battery unit of the communication device, generally between 3.4-4.2V.
  • the operating voltage of the power amplifier directly determines its output power.
  • the calculation formula of the output power of the power amplifier is as follows:
  • Pout is the output power of the power amplifier
  • Vcc is the working voltage of the power amplifier
  • R is the output load impedance of the power amplifier.
  • the power amplifier in order to increase the output power of the power amplifier, for example, in order to make the output power of the power amplifier 113 reach the target power, for example, 33dBm, a more advanced process is generally used in the process of the power amplifier, and the power amplifier is continuously improved.
  • the improvement of the working voltage requires the use of a buck-boost source (Buck-Boost Source), which can boost the working voltage (for example, 3.4-4.2V) of the battery unit of the communication device to 4.5V-5.0V.
  • the power amplifier supplies power.
  • the radio frequency transmission module provided in the embodiment of the present application, by using the first power supply module 120 to supply power to a plurality of first power amplifiers 113 in the first transmission module, the power supply voltage Vcc of the power amplifier can not be increased.
  • the power output capability of the first power amplifier 113 is improved by increasing the number of the first power amplifier 113 and the power combining unit 112, so that the power output capability can meet the power level requirement of the PC2. Therefore, the operating voltage of the first power amplifier 113 can be reduced from 4.5-5.0V to about 3.4V, thereby avoiding the scheme of increasing the output power of the PA by using a high-cost step-up Buck-Boost power supply in the related art. Reducing costs can significantly improve the market quality of 5G PA, promote the substitution of domestic components, and optimize the supply pattern of components.
  • each first power amplifier 113 includes several triodes arranged in parallel, for example, may include q triodes, and q is greater than or equal to two.
  • the number of triodes is directly proportional to the output power of the first power amplifier 113 . That is, the more transistors included in the first power amplifier 113, the stronger its output power capability will be.
  • the number of triodes included in each first power amplifier 113 may be equal or unequal. For ease of description, in the embodiment of the present application, the number of triodes included in each first power amplifier 113 may be equal.
  • each of the first power amplifiers 113 includes several q transistors arranged in parallel, which can improve the heat dissipation of the plurality of transistors in the first power amplifier 113.
  • the output powers of multiple first power amplifiers 113 are combined by means of differential equal power combination, the impedance conversion ratio of the matching network can be reduced, and the loss of the matching network can be reduced.
  • the method of using differential power combination The loss of the matching network is about 0.5 dB smaller than that of the matching network in the related art, which can further improve the power output capability of the first power amplifier 113 .
  • the number of first power amplifiers 113 and the number of transistors included in each first power amplifier 113 are not further limited, and can be set according to actual needs.
  • the first transmitting module 110 is configured with a second input port INPUT2 for connecting with a radio frequency transceiver, wherein the first transmitting module 110 also includes a second power amplifier 114.
  • the input end of the second power amplifier 114 is connected to the second input port INPUT2
  • the power supply end of the second power amplifier 114 is connected to the power port VCC
  • the second power amplifier 114 is used for receiving Power amplification is performed on the intermediate frequency signal of the first standard.
  • the radio frequency transmission module also includes a first switch unit 130 which can be integrated in the first transmission module 110 or external to the first transmission module 110 .
  • the first switch unit 130 includes two first ends and a second end, wherein the two first ends are respectively connected to the output end of the power combining unit 112 and the output end of the second power amplifier 114 in a one-to-one correspondence, and the first switch The second end of the unit 130 is used for connecting with the antenna, and for selectively conducting the path between the first power amplifier 113 or the second power amplifier 114 and the antenna.
  • the first switch unit 130 may also be a double-pole double-throw switch, or other combinations of switches capable of selective switching.
  • the radio frequency transmission module may include a first switch unit 130, and the first transmission module 110 includes a first power amplifier 113 and a second power amplifier 114, which can support the high-frequency signal of the first standard and the first The power amplification of the intermediate frequency signal of the standard can further realize the transmission switching processing of the medium and high frequency signals of the first standard, which expands the frequency band range of the signal transmitted by the radio frequency transmitting module.
  • the radio frequency transmitting module further includes a first filtering unit 140 and a second filtering unit 150 .
  • the first filtering unit 140 is respectively connected to the output end of the power combining unit 112 and the first switching unit 130 for filtering the high frequency signal.
  • the first filtering unit 140 may be a high-pass filter, which only allows high-frequency signals in a preset frequency band to pass through, and can filter out harmonics generated by the first power amplifier 113 during signal amplification.
  • the second filter unit 150 is respectively connected to the output terminal of the second power amplifier 114 and the first switch unit 130 for filtering the intermediate frequency signal.
  • the first filtering unit 140 may be a medium-pass filter, allowing only intermediate frequency signals of a preset frequency band to pass through, and filtering out harmonics generated by the second power amplifier 114 during signal amplification.
  • the first switch unit 130, the first filter unit 140, and the second filter unit 150 can all be built in the first transmitting module 110, and the first transmitting module 110 can be used as a radio frequency PA Mid device.
  • the RF PA Mid device can be understood as a PA module integrating a duplexer (Power amplifier Module including Duplexer).
  • first power amplifiers 113, second power amplifiers 114, first switch unit 130, first filter unit 140, and second filter unit 150 are integrated into the first transmitting module 110, which can improve the The integration of the transmitting module 110 can further reduce the occupied space of the radio frequency transmitting module.
  • the first switch unit 130, the first filter unit 140, and the second filter unit 150 can also be placed outside the first transmitting module 110, and the first transmitting module 110 can be Can be used as RF MMPA devices.
  • the radio frequency MMPA device can be understood as a multi-mode multi-frequency power amplifier, which can support the power amplification of radio frequency signals in multiple frequency bands, so that the radio frequency signal output by the first transmitting module 110 has higher output power and can transmit more power. long distance.
  • the first transmitting module 110 can be configured with a first output port OUTPUT1 and a second output port OUTPUT2, wherein, The first output port OUTPUT1 may be connected to the first filter unit 140 , and the second output port OUTPUT2 may be connected to the second filter unit 150 .
  • the first transmitting module 110 is configured with a third input port INPUT3 for connecting with a radio frequency transceiver, wherein the first transmitting module 110 further includes a third power amplifier 115 .
  • the input end of the third power amplifier 115 is connected to the third input port INPUT3, and the power supply end of the third power amplifier 115 is connected to the first power supply module 120, which is used for receiving the received first system under the action of the power supply voltage Vcc. The power amplification of the low frequency signal.
  • the first transmitting module 110 includes the first power amplifier 113, the second power amplifier 114 and the third power amplifier 115
  • its first switch unit 130 may include three first terminals and one second terminal. Wherein, the three first ends are connected with the output end of the power combining unit 112, the output end of the second power amplifier 114, and the output end of the third power amplifier 115 respectively, and the output end of the first switch unit 130 is used for connecting with the output end of the third power amplifier 115. Antenna connection.
  • the first switch unit 130 is used for selectively conducting the path between any one of the first power amplifier 113 , the second power amplifier 114 , and the third power amplifier 115 and the antenna.
  • the radio frequency transmission module may include a first switch unit 130, and the first transmission module 110 can output a high-frequency signal of the first standard with the target power, and the radio frequency transmission module also includes a second power amplifier 114 and the third power amplifier 115 can support the power amplification of the high-frequency signal of the first standard and the intermediate frequency signal of the first standard, and then can realize the transmission and switching processing of the low, medium and high-frequency signals of the first standard.
  • the range of the frequency band for transmitting signals by the radio frequency transmitting module is expanded.
  • the first transmitting module 110 further includes a third filtering unit 160 .
  • the third filter unit 160 is respectively connected with the output end of the third power amplifier 115 and the first switch unit 130 for filtering the low frequency signal.
  • the third filtering unit 160 may be a low-frequency filter, which only allows low-frequency signals in a preset frequency band to pass through, and can filter out harmonics generated by the third power amplifier 115 during signal amplification.
  • the third filtering unit 160 can be integrated in the aforementioned radio frequency PA Mid device (refer to FIG. 11 ), and can also be externally placed in the first transmitting module 110 (refer to FIG. 12 ).
  • the third filtering unit 160 is externally installed in the first radio frequency transmitting module, the first transmitting module 110 thereof also needs to be configured with a third output port OUTPUT3 connected to the output terminal of the third power amplifier 115 .
  • the third filter unit 160 is disposed between the third output port OUTPUT3 and the first switch unit 130 .
  • the embodiment of the present application also provides a radio frequency system, including: a radio frequency transceiver 20, a first antenna ANT1, and the radio frequency transmitting module 10 in any of the foregoing embodiments, wherein each input of the radio frequency transceiver module The ports are correspondingly connected to the radio frequency transceiver 20 .
  • the radio frequency transceiver 20 is used to generate radio frequency signals, and can also process the received radio frequency signals, and control each switch in the radio frequency transmitting module 10 according to the current working frequency band.
  • the first antenna ANT1 can support the reception and transmission of low, medium and high frequency radio frequency signals, for example, it can radiate the radio frequency signals amplified by the power amplifier on the path to free space and the like.
  • the first antenna ANT1 may be a directional antenna, or may be a non-directional antenna.
  • the first antenna ANT1 may be formed using any suitable type of antenna.
  • the first antenna ANT1 may include an antenna with a resonant element formed of the following antenna structures: an array antenna structure, a loop antenna structure, a patch antenna structure, a slot antenna structure, a helical antenna structure, a strip antenna, a monopole antenna, At least one of dipole antennas, etc.
  • the type of the first antenna ANT1 is not limited to the above examples.
  • the radio frequency system in the embodiment of the present application, by setting a power distribution unit 111, a plurality of first power amplifiers 113, and a power combining unit 112 in the first transmitting module 110, it is possible to pass
  • the number of first power amplifiers, the power distribution unit and the power combination unit are increased to increase the power output capability of the first power amplifier, so that the power output capability can meet the power level requirement of PC2. Therefore, the operating voltage of the first power amplifier can be reduced from 4.5-5.0V to about 3.4V, thereby avoiding the need to increase the output power of the radio frequency transmitting module by using a high-cost boost Buck-Boost power supply in the related art.
  • the cost can be reduced, the impedance conversion ratio of the matching network can be reduced, and the loss of the matching network can be reduced, so as to improve the power output capability of the first power amplifier.
  • the radio frequency system further includes a second power module 30 for providing a power supply voltage.
  • the second power supply module 30 is the same as the first power supply module 120 , both of which can be step-down power supplies.
  • the radio frequency system further includes a fourth power amplifier 40 .
  • the input end of the fourth power amplifier 40 is connected with the radio frequency transceiver 20, the power supply end of the fourth power amplifier 40 is connected with the second power supply module 30, and the output end of the fourth power amplifier 40 is connected with the first power supply module in the radio frequency transmitting module 10.
  • a switch unit 130 is connected, and the fourth power amplifier 40 is used to amplify the power of the radio frequency signal of the second standard under the action of the supply voltage.
  • the radio frequency signal of the second standard may include a low frequency signal of the second standard, such as GSM850, GSM900 and other frequency band signals, and a second standard high frequency signal, such as GSM1800, GSM1900 and other frequency band signals.
  • a low frequency signal of the second standard such as GSM850, GSM900 and other frequency band signals
  • a second standard high frequency signal such as GSM1800, GSM1900 and other frequency band signals.
  • CS Circuit Switched
  • the radio frequency system processing can support the transmission processing of the radio frequency signal of the first standard, and by using the first power supply module to supply power to a plurality of first power amplifiers in the first transmission module, the power amplifier can be On the basis of the power supply voltage, the power output capability of the first power amplifier is improved by increasing the number of the first power amplifier, power distribution unit and power combination unit, so that the power output capability can meet the power level requirement of PC2. Therefore, the operating voltage of the first power amplifier can be reduced from 4.5-5.0V to about 3.4V, thereby avoiding the need to increase the output power of the radio frequency transmitting module by using a high-cost boost Buck-Boost power supply in the related art.
  • the solution can reduce the cost, improve the heat dissipation environment of the power amplifier, reduce the impedance transformation ratio of the matching network, reduce the loss of the matching network, and improve the power output capability of the first power amplifier.
  • the radio frequency system can also support the transmission and processing of radio frequency signals of the second standard, which can expand the frequency range of the radio frequency system to transmit signals, increase the types of services that the radio frequency system can support, and be applicable to more communication scenarios.
  • the embodiment of the present application also provides a radio frequency system, including: a radio frequency transceiver 20, a second antenna ANT2, a third antenna ANT3, a second transmitting module 50, a third power supply module 60 and the The radio frequency transmitting module 10 shown in Figures 1, 6, 7, 10 and 11.
  • the second antenna ANT2 may be an antenna for supporting transmission and reception of medium and high frequency signals
  • the third antenna ANT3 may be an antenna for supporting transmission and reception of low frequency signals.
  • the antenna type of the third antenna ANT3 may be a directional antenna or a non-directional antenna.
  • the antenna type of the third antenna ANT3 may be the same as or different from that of the second antenna ANT2.
  • the third power supply module 60 is the same as the first power supply module 120, and both can be step-down power supplies.
  • the second transmitting module 50 can also be a radio frequency PA Mid device.
  • the second transmitting module 50 may include: a fifth power amplifier 510 , a sixth power amplifier 520 and a second switch unit 530 .
  • the input end of the fifth power amplifier 510 is connected to the radio frequency transceiver 20, and the power supply end of the fifth power amplifier 510 is connected to the third power supply module 60, which is used for receiving the received first standard Power amplification of low frequency signals.
  • the sixth power amplifier 520 the input end of the sixth power amplifier 520 is connected to the radio frequency transceiver 20, the power supply end of the sixth power amplifier 520 is connected to the third power supply module 60, and is used for receiving the first The power amplification of the radio frequency signal of the second standard.
  • the second switch unit 530 includes two first terminals and two second terminals, wherein the two first terminals are respectively connected to the output terminal of the fifth power amplifier 510 and the output terminal of the sixth power amplifier 520 in a one-to-one correspondence, A first end of the second switch unit 530 is connected to the third antenna ANT3; wherein, the first switch unit 130 further includes a first end connected to the other second end of the second switch unit 530, wherein the first switch The unit 130 is also configured to selectively turn on the paths between the sixth power amplifier 520 and the second antenna ANT2 and the third antenna ANT3 respectively.
  • the first switch unit 130 may be a single-pole three-throw switch
  • the second switch may be a double-pole double-throw switch.
  • the first switch unit 130 and the second switch unit 530 can also be composed of a plurality of switches. Further qualification.
  • the second transmitting module 50 further includes a fourth filtering unit 540 and a fifth filtering unit 550 .
  • the fourth filter unit 540 is respectively connected to the output terminal of the fifth power amplifier 510 and the second switch unit 530 for filtering the low-frequency signal of the first standard.
  • the fifth filtering unit 550 may be a low-frequency filter, which only allows low-frequency signals in a preset frequency band to pass through, and can filter out various harmonics generated by the fifth power amplifier 510 during amplifying signals.
  • the fifth filter unit 550 is respectively connected to the output terminal of the sixth power amplifier 520 and the second switch unit 530 for filtering the radio frequency signal of the second standard.
  • the sixth filtering unit can be a low-intermediate frequency filter, which only allows low and intermediate frequency signals in a preset frequency band to pass through, and can filter out various harmonics generated by the sixth power amplifier 520 in the process of amplifying signals.
  • the working frequency range of the high-frequency signal of the second standard is the same as the working frequency range of the intermediate-frequency signal of the first standard.
  • RF transceiver 20 ⁇ sixth power amplifier 520 of the first transmitting module 110 ⁇ fifth filter unit 550 ⁇ second switch unit 530 ⁇ first switch unit 130 ⁇ first output port OUTPUT1 ⁇ second antenna ANT2.
  • the radio frequency system processing can support the transmission processing of the radio frequency signal of the first standard, and by using the first power supply module to supply power to the multiple first power amplifiers in the first transmission module,
  • the power output capability of the first power amplifier is improved by increasing the number of the first power amplifier, the power distribution unit and the power combination unit, so that the power output capability can meet the power level requirement of PC2. Therefore, the operating voltage of the first power amplifier can be reduced from 4.5-5.0V to about 3.4V, thereby avoiding the need to increase the output power of the radio frequency transmitting module by using a high-cost boost Buck-Boost power supply in the related art.
  • the solution can reduce the cost, improve the heat dissipation environment of the power amplifier, reduce the impedance transformation ratio of the matching network, reduce the loss of the matching network, and improve the power output capability of the first power amplifier.
  • the radio frequency system can also support the transmission and processing of radio frequency signals of the second standard, which can expand the frequency range of the radio frequency system to transmit signals, increase the types of services that the radio frequency system can support, and be applicable to more communication scenarios.
  • the second antenna ANT2 is used to support the transmission and reception of low-frequency signals of the first standard and the second standard
  • the third antenna ANT3 is used to transmit and receive medium and high-frequency signals of the first standard , and the transmission of the high-frequency signal of the second standard.
  • the narrower the operating frequency band of the antenna the higher the efficiency of the antenna.
  • the high-frequency signal of the second standard can be switched by the second switch unit 530 and the first switch unit 130, and then radiated by the second antenna ANT2 To free space, this is about 30% more efficient than using one antenna to support the low-frequency, intermediate-frequency, and high-frequency full-band antennas of the first standard and the second standard, which can improve the communication performance of the high-frequency signal of the second standard , and then improve the communication performance of the radio frequency system.
  • the embodiment of the present application also provides a communication device.
  • the communication device may include the radio frequency system in any of the foregoing embodiments.
  • the above-mentioned communication device by using the first power supply module to supply power to a plurality of first power amplifiers in the first transmitting module, can increase the number and power of the first power amplifiers without increasing the power supply voltage of the power amplifiers.
  • the distribution unit and the power combining unit are used to increase the power output capability of the first power amplifier, so that the power output capability can meet the power level requirement of PC2. Therefore, the operating voltage of the first power amplifier can be reduced from 4.5-5.0V to about 3.4V, thereby avoiding the need to increase the output power of the radio frequency transmitting module by using a high-cost boost Buck-Boost power supply in the related art.
  • the solution can reduce the cost, improve the heat dissipation environment of the power amplifier, reduce the impedance transformation ratio of the matching network, reduce the loss of the matching network, and improve the power output capability of the first power amplifier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)

Abstract

L'invention concerne un module de transmission radiofréquence, le module de transmission radiofréquence comprenant : un premier module d'alimentation électrique (120) et un premier module de transmission (110). Le premier module de transmission (110) est configuré avec un port d'alimentation électrique (VCC) connecté au premier module d'alimentation électrique (120), un premier port d'entrée (INPUT) destiné à être connecté à un émetteur-récepteur radiofréquence, et un premier port de sortie (OUTPUT1) destiné à être connecté à une antenne. Le premier module de transmission (110) comprend en outre : une unité de distribution de puissance (111), une pluralité de premiers amplificateurs de puissance (113) et une unité de synthèse de puissance (112) ; une pluralité d'extrémités d'entrée de l'unité de synthèse de puissance (112) sont connectées aux extrémités de sortie de la pluralité de premiers amplificateurs de puissance (113) dans une correspondance biunivoque ; une extrémité de sortie de l'unité de synthèse de puissance (112) est connectée au premier port de sortie (OUTPUT1), et est utilisée pour synthétiser les puissances de sortie de la pluralité de premiers amplificateurs de puissance (113) de façon à délivrer en sortie un signal haute fréquence ayant une puissance cible.
PCT/CN2022/090883 2021-06-09 2022-05-05 Module de transmission radiofréquence, système radiofréquence et dispositif de communication WO2022257651A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202121293501.5 2021-06-09
CN202121293501.5U CN215871375U (zh) 2021-06-09 2021-06-09 射频发射模组、射频系统和通信设备

Publications (1)

Publication Number Publication Date
WO2022257651A1 true WO2022257651A1 (fr) 2022-12-15

Family

ID=80314856

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/090883 WO2022257651A1 (fr) 2021-06-09 2022-05-05 Module de transmission radiofréquence, système radiofréquence et dispositif de communication

Country Status (2)

Country Link
CN (1) CN215871375U (fr)
WO (1) WO2022257651A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN215871375U (zh) * 2021-06-09 2022-02-18 Oppo广东移动通信有限公司 射频发射模组、射频系统和通信设备

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363072A (en) * 1991-10-29 1994-11-08 Japan Radio Co., Ltd. High-frequency power divider-combiner
US5561397A (en) * 1995-05-15 1996-10-01 Unisys Corporation Solid state amplifier for microwave transmitter
CN1874555A (zh) * 2005-05-31 2006-12-06 华为技术有限公司 提高基站系统输出功率的方法及装置
US20140253247A1 (en) * 2013-03-07 2014-09-11 Kabushiki Kaisha Toshiba Power amplifying device and transmitter
CN107850663A (zh) * 2015-07-14 2018-03-27 三菱电机株式会社 发送模块、具备该发送模块的阵列天线装置以及发送装置
CN108736907A (zh) * 2018-06-20 2018-11-02 武汉讯康电子技术有限公司 一种射频发射电路
CN208707601U (zh) * 2018-07-12 2019-04-05 北斗地网（重庆）科技集团有限公司 一种无线信号放大电路
CN109743028A (zh) * 2018-12-18 2019-05-10 南京赛格微电子科技股份有限公司 一种小型Ku波段120W功率放大器
CN112910492A (zh) * 2021-01-29 2021-06-04 Oppo广东移动通信有限公司 射频PA Mid器件、射频系统和通信设备
CN215871375U (zh) * 2021-06-09 2022-02-18 Oppo广东移动通信有限公司 射频发射模组、射频系统和通信设备

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363072A (en) * 1991-10-29 1994-11-08 Japan Radio Co., Ltd. High-frequency power divider-combiner
US5561397A (en) * 1995-05-15 1996-10-01 Unisys Corporation Solid state amplifier for microwave transmitter
CN1874555A (zh) * 2005-05-31 2006-12-06 华为技术有限公司 提高基站系统输出功率的方法及装置
US20140253247A1 (en) * 2013-03-07 2014-09-11 Kabushiki Kaisha Toshiba Power amplifying device and transmitter
CN107850663A (zh) * 2015-07-14 2018-03-27 三菱电机株式会社 发送模块、具备该发送模块的阵列天线装置以及发送装置
CN108736907A (zh) * 2018-06-20 2018-11-02 武汉讯康电子技术有限公司 一种射频发射电路
CN208707601U (zh) * 2018-07-12 2019-04-05 北斗地网（重庆）科技集团有限公司 一种无线信号放大电路
CN109743028A (zh) * 2018-12-18 2019-05-10 南京赛格微电子科技股份有限公司 一种小型Ku波段120W功率放大器
CN112910492A (zh) * 2021-01-29 2021-06-04 Oppo广东移动通信有限公司 射频PA Mid器件、射频系统和通信设备
CN215871375U (zh) * 2021-06-09 2022-02-18 Oppo广东移动通信有限公司 射频发射模组、射频系统和通信设备

Also Published As

Publication number Publication date
CN215871375U (zh) 2022-02-18

Similar Documents

Publication Publication Date Title
CN108199730B (zh) 多路选择开关、射频系统以及无线通信设备
WO2022160934A1 (fr) Dispositif radio fréquence pa mid, système radiofréquence et dispositif de communication
WO2022116728A1 (fr) Dispositif l-pa mid radiofréquence, système d'émission-réception radiofréquence et dispositif de communication
TWI603596B (zh) 行動裝置
CN102055491B (zh) 射频前端模块及具有该模块的移动通信装置
CN213661597U (zh) 射频L-PA Mid器件、射频收发系统和通信设备
WO2019174253A1 (fr) Commutateur multivoie, système radiofréquence, et dispositif de communication sans fil
WO2023016196A1 (fr) Module amplificateur, système radiofréquence et dispositif de communication
US20170187431A1 (en) Antenna multiplexing device and mobile terminal
WO2023016197A1 (fr) Module amplificateur, système radiofréquence et dispositif de communication
WO2023016199A1 (fr) Système radiofréquence et dispositif de communication
WO2023016204A1 (fr) Module amplificateur, système radiofréquence et dispositif de communication
CN113726360B (zh) 射频PA Mid器件、射频收发装置和通信设备
WO2023016200A1 (fr) Module amplificateur, système radiofréquence et dispositif de communication
WO2023016198A1 (fr) Système à radiofréquence et dispositif de communication
WO2023142657A1 (fr) Module radiofréquence, dispositif de communication, module pamid et module l pamid
CN113676191B (zh) 发射模组、射频系统及通信设备
WO2023016185A1 (fr) Module de transmission, système radiofréquence et dispositif de communication
CN114553250A (zh) 射频系统和通信设备
WO2022257651A1 (fr) Module de transmission radiofréquence, système radiofréquence et dispositif de communication
CN110829023B (zh) 天线模组及终端
WO2023142766A1 (fr) Module frontal radiofréquence et système radiofréquence
WO2023142765A1 (fr) Module frontal radiofréquence et système radiofréquence
WO2023098244A1 (fr) Dispositif frontal radiofréquence et système radiofréquence
WO2023016216A1 (fr) Module amplificateur, système radiofréquence et dispositif de communication

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22819253

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22819253

Country of ref document: EP

Kind code of ref document: A1