WO2022143453A1 - 射频电路及电子设备 - Google Patents
射频电路及电子设备 Download PDFInfo
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- WO2022143453A1 WO2022143453A1 PCT/CN2021/141160 CN2021141160W WO2022143453A1 WO 2022143453 A1 WO2022143453 A1 WO 2022143453A1 CN 2021141160 W CN2021141160 W CN 2021141160W WO 2022143453 A1 WO2022143453 A1 WO 2022143453A1
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- 230000005540 biological transmission Effects 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 13
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- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000004148 unit process Methods 0.000 claims 2
- 238000004891 communication Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000010897 surface acoustic wave method Methods 0.000 description 2
- 102100026397 ADP/ATP translocase 3 Human genes 0.000 description 1
- 101000718437 Homo sapiens ADP/ATP translocase 3 Proteins 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- 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
- H04B2001/0408—Circuits with power amplifiers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present application relates to the technical field of electronic products, and in particular, to a radio frequency circuit and electronic equipment.
- Electronic devices for example, mobile phones, tablet computers (portable android device, Pad), in-vehicle communication systems, etc.
- LTE Long Term Evolution
- NR new air interface
- Non-standalone, NSA non-standalone
- a mobile communication operator requires that electronic equipment supporting NSA needs to support Band3+ second frequency band, Band39+ second frequency band E-UTRA main cell group (Master Cell Group, MCG), NR is Secondary Cell Group (Secondary Cell Group, SCG) ) combination of dual connectivity (EUTRA-NR Dual Connectivity, EN-DC), where E-UTRA represents Evolved UMTS Terrestrial Radio Access (ie Evolved Universal Terrestrial Radio Access).
- the RF solution of electronic equipment requires two independent power amplifiers (Power Amplifier, PA) combined with other devices, Achieving simultaneous operation of 4G and 5G networks requires an LTE PA circuit and a PA in the second frequency band (for example, N41 frequency band).
- the RF circuit is complex in form and requires more discrete components, resulting in higher circuit costs.
- Embodiments of the present application provide a radio frequency circuit and an electronic device, which can solve the problem of high cost of the existing radio frequency circuit.
- an embodiment of the present application provides a radio frequency circuit, including: a first amplifier, a first switch, a first frequency band transceiver unit, a second frequency band transceiver unit, and an antenna, the first switch includes a first moving end, a second frequency band transceiver unit, and an antenna. A fixed end and a second fixed end;
- the input end of the first amplifier is connected to the radio frequency transceiver, the output end of the first amplifier is connected to the first moving end, the first stationary end is connected to one end of the first frequency band transceiver unit, the first The two fixed ends are connected to one end of the second frequency band transceiver unit, and the other end of the first frequency band transceiver unit and the other end of the second frequency band transceiver unit are both connected to the antenna.
- the embodiments of the present application further provide an electronic device, including the radio frequency circuit provided by the embodiments of the present application.
- the first stationary end of the first switch is connected to one end of the first frequency band transceiver unit, and the first end of the first switch is connected to the first moving end of the first switch.
- the two fixed ends are connected to one end of the second frequency band transceiver unit, and the output end of the first amplifier can be connected to one end of the first frequency band transceiver unit or one end of the second frequency band transceiver unit through the first switch, that is, the first frequency band transceiver unit
- the first amplifier can be shared with the second frequency band transceiver unit, and there is no need to set an amplifier for the first frequency band transceiver unit and the second frequency band transceiver unit respectively, which can reduce the number of components in the radio frequency circuit, thereby reducing the overall device cost of the radio frequency circuit.
- FIG. 1 is one of the schematic structural diagrams of the radio frequency circuit provided by an embodiment of the present application.
- FIG. 2 is a schematic structural diagram of a second frequency band transceiver unit in a radio frequency circuit provided by an embodiment of the present application;
- FIG. 3 is a second schematic structural diagram of a radio frequency circuit provided by an embodiment of the present application.
- FIG. 4 is a schematic diagram of implementing network communication by using a radio frequency circuit provided by an embodiment of the present application.
- the present application provides a radio frequency circuit 100 of an embodiment, including: a first amplifier 110 , a first switch 120 , a first frequency band transceiver unit 130 , a second frequency band transceiver unit 140 , and an antenna 150 , the first switch 120 Including a first movable end A21, a first stationary end A22 and a second stationary end A23;
- the input end of the first amplifier 110 is connected to the radio frequency transceiver, the output end of the first amplifier 110 is connected to the first moving end A21, the first fixed end A22 is connected to one end of the first frequency band transceiver unit 130, and the second fixed end A23 is connected to the first moving end A21.
- One end of the two-band transceiver unit 140 , the other end of the first-band transceiver unit 130 , and the other end of the second-band transceiver unit 140 are all connected to the antenna 150 .
- the output end of the first amplifier 110 is connected to one end of the first frequency band transceiver unit 130 through the first switch 120.
- the first The output end of the amplifier 110 is communicated with the first sub-antenna through the first switch 120 and the first frequency band transceiver unit 130.
- the first amplifier 110 receives the signal of the first frequency band from the radio frequency transceiver, amplifies the signal of the first frequency band, and then transmits the signal through the first frequency band.
- a switch 120 is transmitted to one end of the first frequency band transceiver unit 130 , and the amplified first frequency band signal is processed (eg, including filtering, etc.) by the first frequency band transceiver unit 130 and then transmitted to the antenna 150 .
- the output end of the first amplifier 110 is connected to one end of the second frequency band transceiver unit 140 through the first switch 120, that is, the first amplifier
- the output end of 110 is communicated with the second sub-antenna through the first switch 120 and the second frequency band transceiver unit 140.
- the first amplifier 110 receives the signal of the second frequency band from the radio frequency transceiver, amplifies the signal of the second frequency band and passes through the first frequency band.
- the switch 120 is transmitted to one end of the second frequency band transceiver unit 140 , and the amplified second frequency band signal is processed (eg, filtered) by the second frequency band transceiver unit 140 and then transmitted to the antenna 150 .
- the first frequency band is a frequency band in the LTE frequency band
- the second frequency band is a frequency band in the 5G frequency band, for example, a frequency band in the NR frequency band.
- the output end of the first amplifier 110 is connected to the first moving end A21 of the first switch 120 , the first stationary end A22 of the first switch 120 is connected to one end of the first frequency band transceiver unit 130 , the second fixed end A23 of the first switch 120 is connected to one end of the second frequency band transceiver unit 140 , and the output end of the first amplifier 110 can be connected to one end of the first frequency band transceiver unit 130 or the second frequency band transceiver unit through the first switch 120
- One end of 140 is connected, that is, the first frequency band transceiver unit 130 and the second frequency band transceiver unit 140 can share the first amplifier 110, and there is no need to set an amplifier for the first frequency band transceiver unit 130 and the second frequency band transceiver unit 140 respectively, which can reduce The number of devices in the radio frequency circuit can thereby reduce the cost of the overall device of the radio frequency circuit.
- the radio frequency circuit needs to be laid out on a printed circuit board (Printed Circuit Board, PCB), due to the reduction in the number of devices in the radio frequency circuit, the area of the PCB board occupied is reduced, which can reduce the difficulty of the layout of the PCB board.
- the need for amplifiers can be reduced, and the complexity of the radio frequency circuit can be reduced. In this way, the path loss can be reduced, so that the sensitivity of the radio frequency circuit can be improved, and the power consumption of the radio frequency can be saved.
- the antenna 150 includes a first sub-antenna and a second sub-antenna, the other end of the first frequency band transceiver unit 130 is connected to the first sub antenna, and the other end of the second frequency band transceiver unit 140 is connected to the second sub antenna;
- the first amplifier 110 When the output end of the first amplifier 110 is connected to the first sub-antenna through the first switch 120 and the first frequency band transceiver unit 130, the first amplifier 110 is used to amplify the signal of the first frequency band, and the first frequency band transceiver unit 130 process the amplified signal of the first frequency band and transmit it to the first sub-antenna;
- the first amplifier 110 When the output end of the first amplifier 110 is connected to the second sub-antenna through the first switch 120 and the second frequency band transceiver unit 140, the first amplifier 110 is used to amplify the signal of the second frequency band, and the second frequency band transceiver unit 140 processes the amplified signal of the second frequency band and transmits it to the second sub-antenna.
- the output end of the first amplifier 110 is connected to the first sub-antenna through the first switch 120 and the first frequency band transceiver unit 130.
- the first amplifier 110 can amplify the signal of the first frequency band.
- the first frequency band transceiver unit 130 processes the amplified signal of the first frequency band and transmits it to the first sub-antenna, and the amplified first frequency band is transmitted to the first sub-antenna through the first sub-antenna. The processed signal is transmitted.
- the output end of the first amplifier 110 is connected to the first sub-antenna through the first switch 120 and the second frequency band transceiver unit 140.
- the first amplifier 110 can amplify the signal of the second frequency band
- the second frequency band transceiver unit 140 processes the amplified signal of the second frequency band and transmits it to the second sub-antenna, and the amplified second frequency band is transmitted to the second sub-antenna through the second sub-antenna.
- the processed signal is transmitted. That is, signals in different frequency bands are transmitted through different sub-antennas, which can reduce interference and improve signal transmission performance.
- the second frequency band transceiver unit 140 includes: a second switch 141 , a second frequency band receiving port, a second frequency band filter, a third switch 142 and a first coupler 143 ;
- the second switch 141 includes a third stationary terminal, a fourth stationary terminal and a second movable terminal, the third switch 142 includes a fifth stationary terminal and a third movable terminal, and one end of the second frequency band transceiver unit 140 is the first terminal.
- the third fixed terminal and the fourth fixed terminal of the two switches 141 are connected to the receiving port of the second frequency band, the second moving terminal is connected to the third moving terminal through the second frequency band filter, and the fifth fixed terminal is connected to the first coupler 143.
- the first end, the second end of the first coupler 143 is connected to the antenna 150 , and the other end of the second frequency band transceiver unit 140 is the second end of the first coupler 143 .
- the second end of the first coupler 143 may be connected to the second sub-antenna of the antenna 150 .
- the second stationary terminal of the first switch 120 is connected to the second frequency band filter through the second switch 141, and the first amplifier 110 amplifies the signal of the second frequency band After that, it is transmitted to the second frequency band filter through the first switch 120 and the second switch 141, and the amplified signal of the second frequency band is filtered by the second frequency band filter and then transmitted to the third switch 142.
- the second frequency band filter can filter and process the amplified signal of the second frequency band through the third switch 142 and transmit the signal to the first coupler 143
- the first end is coupled through the first coupler 143 and then transmitted to the antenna 150 through the second end.
- the second frequency band receiving port is connected to the second frequency band filter through the second switch 141
- the third movable end of the third switch 142 is connected to the fifth stationary end
- the first signal is received through the antenna 150, transmitted to the second end of the first coupler 143, coupled through the first coupler 143, and then transmitted to the third switch 142 through the first end, through the third switch 142.
- the coupled signal is transmitted to the second frequency band filter for filtering and then transmitted to the second frequency band receiving port to realize signal reception and the like.
- the second frequency band transceiver unit is an N41 frequency band transceiver unit, as shown in FIG. 2
- the second frequency band receiving port is an N41 frequency band receiving port, that is, the N41 RX port in FIG.
- the end is the N41_ANT end in Figure 2.
- the second frequency band filter is the N41 frequency band filter, which can pass the N41 frequency band, that is, the N41 SAW filter in Figure 2, and the SAW is Surface Acoustic Wave, that is, the surface acoustic wave filter.
- the third switch 142 further includes a fourth movable terminal, a sixth stationary terminal, a seventh stationary terminal and an eighth stationary terminal, and the fourth movable terminal is used to connect the target frequency band
- the input port such as the AUX_INPUT port in Figure 2
- the target frequency band is one of the frequency bands in the NR (New Radio) frequency band except the second frequency band
- the sixth fixed end is connected to the first power output port
- the seventh The stationary terminal is connected to the second power output port
- the eighth stationary terminal is connected to the third power output port.
- the fourth moving end when the fourth moving end is connected to the sixth fixed end, the input port of the target frequency band is connected to the first power output port, and when the fourth moving end is connected to the seventh fixed end , the input port of the target frequency band is communicated with the second power output port, and when the fourth moving end is connected to the eighth stationary end, the input port of the target frequency band is communicated with the third power output port. That is, the fourth moving end can transmit the signal of the target frequency band input by the input port of the target frequency band to the first power output port, the second power The output port or the third power output port is output through the first power output port, the second power output port or the third power output port.
- the second switch may be a SPDT (single pole double throw switch)
- the second frequency band filter may be a SAW
- the third switch may be a DP4T (double pole four throw switch) switch.
- N41 TX connected to the second stationary terminal of the first switch 120 connected to the first amplifier
- N41 RX Connect to the receiving channel device outside the PA, such as LNA (low noise amplifier), etc.;
- SPDT RF single-pole double-throw switch, so that the common end of the switch can be switched between two channels;
- Switch DP4T Double pole four throw switch.
- the three AUX_OUTs in Figure 2 can be used as channel sounding reference signal (Sounding Reference Signal, SRS) power output ports of the N41 1T4R.
- AUX_INPUT can be used as input for other NR bands;
- the first coupler as a part of the power detection loop, couple the transmit power of the fifth stationary terminal of the third switch and output it to the FBRX (power detection) port of the transmit receiver (TC, transmitter).
- NR_CPL_IN Here the SPDT switching path connects NR_CPL_IN and NR_CPL_OUT.
- the power detection signal of the external NR frequency band is input through NR_CPL_IN and output through NR_CPL_OUT after passing through the SPDT path.
- the power detection signals of different frequency bands can be output in a common channel.
- NR_CPL_OUT The output port of the power detection signal, after the SPDT switches the path, it can be connected to the coupler of the N41_ANT path, or it can be connected to the NR_CPL_IN port.
- N41 transmission path N41 TX signal passes through the PA internal amplifier circuit and then passes through SPDT (SPDT switching, connecting N41 TX terminal and SAW terminal), through N41 SAW, DP4T switch (the right side is cut to the uppermost side), the first coupler It is then output through the N41 ANT port.
- SPDT SPDT switching, connecting N41 TX terminal and SAW terminal
- N41 SAW SAW
- DP4T switch the right side is cut to the uppermost side
- the first coupler It It is then output through the N41 ANT port.
- N41 receiving channel path After the N41 RX signal passes through the antenna receiving and front-end channel, it enters the RF circuit through the N41_ANT port, and passes through the N41 SAW and SPDT (SPDT switching, connecting the SAW end and the N41 RX end);
- N41 SRS channel The N41 TX signal passes through the PA internal amplifier circuit and passes through the SPDT (SPDT switching, connecting the N41 TX terminal and the SAW terminal), through the N41 SAW, DP4T switch (the right side is switched to the lower 3 ports), and the AUX_OUT output is connected. To other N41 receiving channels, realize the SRS function.
- N41 power coupling When the N41 TX signal passes through the first coupler after the DP4T switch, the first coupler is coupled to a certain power (the size of the coupling power is determined according to the coupling factor), and the SPDT switch (SPDT switching, connecting the coupler and NR_CPL_OUT) .
- the second frequency band transceiver unit 140 further includes a fourth switch 144 , and the fourth switch 144 includes a fifth movable end, a ninth immovable end and a tenth immovable end.
- the movable end is connected to the third end of the first coupler 143 , the tenth stationary end is used to connect to the power detection signal input port, and the fifth movable end is used to connect to the power detection signal output port.
- the signal obtained by filtering the amplified signal of the second frequency band by the second frequency band filter is transmitted to the first end of the first coupler 143 through the third switch 142 , the first A coupled signal is transmitted to the antenna 150 through the second end, and the second coupled signal obtained by coupling through the first coupler 143 can be transmitted to the ninth stationary end through the third end. If the fifth movable end and the ninth stationary end connected, the third end is communicated with the power detection signal output port, and the second coupling signal can be output through the power detection signal output port. If the fifth movable end is connected to the tenth immovable end, the power detection signal input port is communicated with the power detection signal output port.
- the first frequency band transceiver unit 130 includes a fifth switch 131 , a first frequency band receiving port, and a first frequency band filter 132 , and the fifth switch 131 includes a sixth moving end, an eleventh immovable end and twelfth immovable end;
- One end of the first frequency band transceiver unit 130 is the eleventh fixed end of the fifth switch 131, the twelfth fixed end is connected to the first frequency band receiving port, and the sixth moving end is connected to one end of the first frequency band filter.
- the other end of the filter is used to connect to the antenna 150 , and the other end of the first frequency band transceiver unit 130 is the other end of the first frequency band filter 132 .
- the other end of the first frequency band filter may be connected to the first sub-antenna of the antenna 150 .
- the sixth movable terminal is connected to the eleventh stationary terminal
- the first stationary terminal of the first switch 120 passes through the fifth switch 131
- the first amplifier 110 amplifies the first frequency band signal and transmits it to the first frequency band filter through the first switch 120 and the fifth switch 131, and the amplified first frequency band filter is passed through the first frequency band filter.
- the signal of the frequency band can be transmitted to the antenna 150 after being filtered.
- the first frequency band receiving port When the sixth moving end is connected to the twelfth stationary end, the first frequency band receiving port is connected to the first frequency band filter through the fifth switch 131, receives the signal through the antenna 150, and transmits the signal to the first frequency band filter for filtering After processing, it is transmitted to the first frequency band receiving port to realize signal reception, etc.
- the first frequency band transceiver unit is a B41 frequency band transceiver unit, as shown in FIG. 3
- the first frequency band receiving port may be the B41 RX port in FIG. 3 .
- TRX means transceiver
- RX means reception
- TX means transmission
- DRX means diversity reception
- PRX means main set reception
- MIMO Multi Input Multi Output.
- the radio frequency circuit further includes a third frequency band transceiver unit
- the first switch 120 further includes a thirteenth fixed end, the thirteenth fixed end is connected to one end of the third frequency band transceiver unit, and the third frequency band transceiver unit The other end is used to connect the antenna 150 .
- the first frequency band transceiver unit 130, the second frequency band transceiver unit 140 and the third frequency band transceiver unit can share one first amplifier 110, which reduces the number of amplifiers and the cost of radio frequency circuits.
- the first frequency band transceiver unit 130, the second frequency band transceiver unit 140 and the third frequency band transceiver unit can share one first amplifier 110, which reduces the number of amplifiers and the cost of radio frequency circuits.
- the third frequency band transceiver unit may include a B40 frequency band transceiver unit, that is, the third frequency band is the B40 frequency band, and the third frequency band transceiver unit may include a control switch 161, a third frequency band filter 162, a third frequency band
- the frequency band receiving port, the control switch 161 includes a control end, a first control end and a second control end, one end of the third frequency band transceiver unit is the first control end, and the first control end is connected to thirteen
- the stationary end, the second control stationary end is connected to the third frequency band receiving port, the control moving end is connected to one end of the third frequency band filter, and the other end of the third frequency band transceiver unit is the other end of the third frequency band filter.
- the radio frequency circuit may further include a B7 frequency band transceiver unit, and the B7 frequency band transceiver unit includes a B7 frequency band filter 163 , and the B7 frequency band filter includes a first port, a second port and a third
- the first switch 120 further includes a fourteenth fixed terminal, the fourteenth fixed terminal is connected to the first port, the second port is connected to the B7 frequency band receiving port, and the third port is used to connect the antenna 150 . That is, the B7 frequency band transceiver unit, the first frequency band transceiver unit 130 , the second frequency band transceiver unit 140 and the third frequency band transceiver unit share one first amplifier 110 .
- the radio frequency circuit further includes a second amplifier 170 , a sixth switch 180 , a fourth frequency band transceiver unit, a seventh switch 190 and a second coupler 200
- the sixth switch 180 includes a seventh A moving end and a plurality of fourteenth moving ends
- the seventh switch 190 includes a plurality of fifteenth moving ends
- the eighth moving end and the ninth moving end are connected
- the fourth frequency band transceiver unit includes a first duplexer module.
- Group 201, one side of the first duplexer module 201 includes a plurality of first transmission ports and a plurality of second transmission ports, and the other side of the first duplexer module 201 includes a third transmission port;
- the input end of the second amplifier 170 is connected to the radio frequency transceiver, the output end of the second amplifier 170 is connected to the seventh moving end, each first transmission port is respectively connected to a fourteenth stationary end, and a plurality of first transmission ports
- the fourteenth fixed end of the connection is different, each second transmission port is connected to the receiving port of the corresponding frequency band, the third transmission port is connected to a fifteenth fixed end, and the other end of the first frequency band transceiver unit is connected to a fifteenth
- the fixed end, the other end of the second frequency band transceiver unit is connected to a fifteenth fixed end, and the other end of the second frequency band transceiver unit is connected to the fifteenth fixed end, and the other end of the first frequency band transceiver unit is connected to the fifteenth fixed end.
- the fifteen fixed terminals are different, and are different from the fifteenth fixed terminal connected to the third transmission port.
- the eighth moving terminal and the ninth moving terminal are used to connect the seventh terminal of the second coupler.
- the second coupler 200 The eighth end is connected to the antenna.
- the eighth terminal of the second coupler 200 may be the MHB_ANT terminal shown in FIG. 3 .
- the fourth frequency band transceiver unit includes a plurality of frequency band transceiver subunits, each frequency band transceiver subunit includes a duplexer of a corresponding frequency band, and the duplexers of the multiple frequency band transceiver units form a first duplexer module.
- the plurality of first transmission ports include transmitting ends of multiple frequency bands corresponding to the plurality of frequency band transceiver units, and the plurality of second transmission ports include receiving ends of multiple frequency bands corresponding to the multiple frequency band transceiver units.
- the radio frequency circuit further includes a fifth frequency band transceiver unit
- the fifth frequency band transceiver unit includes a second duplexer 202
- one side of the second duplexer includes a first transmitter end of the fifth frequency band and a fifth frequency band
- the first receiving end of the second duplexer, the other side of the second duplexer includes the second transmitting end of the fifth frequency band and the second receiving end of the fifth frequency band
- the first transmitting end is connected to a fourth fixed end, which is connected with the multi-frequency
- the fourteenth fixed ends connected to the first transmission ports are different, and the first receiving ends are connected to the receiving ports of the fifth frequency band.
- the second transmitting end and the second receiving end are respectively connected with a fifteenth fixed terminal, and the connected fifteenth fixed terminals are different.
- the multiple frequency band transceiver units include a B3 frequency band transceiver unit, a B1/B4 frequency band transceiver unit, and a B2 frequency band transceiver unit.
- the first transmission ports are respectively connected to a different fourteenth fixed terminal, that is, the first transmission port of the B3 frequency band transceiver unit is connected to D51, the first transmission port of the B1/B4 frequency band transceiver unit is connected to D52, and the first transmission port of the B2 frequency band transceiver unit is connected.
- a transmission port is connected to D53.
- the second transmission port of the B3 frequency band transceiver unit is connected to the receiving port of the B3 frequency band
- the second transmission port of the B1/B4 frequency band transceiver unit is connected to the B1/B4 frequency band receiving port
- the B2 frequency band The second transmission port of the transceiver unit is connected to the B2 frequency band receiving port port.
- the plurality of fifteenth fixed terminals include D61, D62, D63, D64, D65, D66, and D67
- the third transmission port is connected to a fifteenth fixed terminal, that is, connected to D61.
- the fifth frequency band transceiver unit may include a B39 frequency band transceiver unit, the first transmitting end is connected to D54, the first receiving end is connected to the receiving port of the B39 frequency band, the second transmitting end is connected to a fifteenth fixed end, that is, is connected to D62, The two receiving terminals are connected to a fifteenth fixed terminal, namely, D63.
- the third port of the B7 frequency band transceiver unit is connected to D64 , that is, the third port of the B7 frequency band transceiver unit is connected to the antenna 150 through the sixth switch and the second coupler 200 .
- the other end of the filter in the B40 frequency band transceiver unit is connected to D65, that is, the other end of the filter in the B40 frequency band transceiver unit is connected to the antenna 150 through the sixth switch and the second coupler 200 .
- the other end of the first frequency band filter in the first frequency band transceiver unit 130 is connected to D66 , that is, the other end of the first frequency band filter is connected to D66 through the sixth switch and the second coupler 200 .
- the fifth end of the B34 frequency band transceiver unit is also connected to a fifteenth fixed end of the sixth switch, namely D67.
- the first amplifier 110 may be a high frequency amplifier and the second amplifier may be an intermediate frequency amplifier.
- the filters in each embodiment of the present application may be bandpass filters.
- the first frequency band filter is a filter that can filter signals of the first frequency band through the other frequency band signals
- the second frequency band filter is the second frequency band. A filter that removes the signal from the rest of the frequency band.
- the frequency band ranges of the first frequency band and the second frequency band at least partially overlap.
- the first frequency band transceiver unit 130 may include a B41 frequency band transceiver unit
- the second frequency band transceiver unit 140 may include an N41 frequency band transceiver unit. Band transceiver unit.
- the second frequency band transceiver unit 140 may also include an N1 frequency band transceiver unit, an N3 frequency band transceiver unit, and an N28 frequency band transceiver unit, then the second frequency band transceiver unit 140 may respectively include a first target frequency band whose frequency band range at least partially overlaps with the N1 frequency band.
- the LTE B39TRX circuit is shown in Figure 3, and the LTE B39 signal passes through the second amplifier 170, the sixth switch 180, the B39 filter 220, and the seventh switch 190 , the second coupler 200 is coupled and output from the MHB_ANT port.
- the N41 TRX circuit is shown in Figure 3.
- the N41 signal is output from the N41_ANT port after passing through the first amplifier 110, the first switch 120, the N41 SAW filter, the DP4T RF switch, and the first coupler to reach the ANT3 antenna.
- the radio frequency circuit of the embodiment of the present application there is no separate N41 PA, and the power VCC and RFFE control signals required by the separate PA are also not required. There are fewer devices such as combiners on the N41 TRX path, which can reduce costs and so on.
- Embodiments of the present application further provide an electronic device, including: the radio frequency circuit 100 provided by the embodiments of the present application.
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Abstract
Description
Claims (10)
- 一种射频电路,包括:第一放大器、第一开关、第一频段收发单元、第二频段收发单元以及天线,所述第一开关包括第一动端、第一不动端和第二不动端;所述第一放大器的输入端连接射频收发器,所述第一放大器的输出端连接所述第一动端,所述第一不动端连接所述第一频段收发单元的一端,所述第二不动端连接所述第二频段收发单元的一端,所述第一频段收发单元的另一端以及所述第二频段收发单元的另一端均连接所述天线。
- 根据权利要求1所述的射频电路,其中,所述天线包括第一子天线和第二子天线,所述第一频段收发单元的另一端连接所述第一子天线,所述第二频段收发单元的另一端连接所述第二子天线;在所述第一放大器的输出端通过所述第一开关以及所述第一频段收发单元与所述第一子天线连通的情况下,所述第一放大器用于对第一频段的信号进行放大,所述第一频段收发单元对放大后的第一频段的信号处理后传输至所述第一子天线;在所述第一放大器的输出端通过所述第一开关以及所述第二频段收发单元与所述第二子天线连通的情况下,所述第一放大器用于对第二频段的信号进行放大,所述第二频段收发单元对放大后的第二频段的信号处理后传输至所述第二子天线。
- 根据权利要求1所述的射频电路,所述第二频段收发单元包括:第二开关、第二频段接收端口、第二频段滤波器、第三开关以及第一耦合器;其中,所述第二开关包括第三不动端、第四不动端和第二动端,所述第三开关包括第五不动端和第三动端,所述第二频段收发单元的一端为所述第二开关的第三不动端,所述第四不动端连接所述第二频段接收端口,所述第二动端通过所述第二频段滤波器连接所述第三动端,所述第五不动端连接第一耦合器的第一端,所述第一耦合器的第二端连接所述天线,所述第二频段收发单元的另一端为所述第一耦合器的第二端。
- 根据权利要求3所述的射频电路,其中,所述第三开关还包括第四动端、第六不动端、第七不动端以及第八不动端,所述第四动端用于连接目标频段的输入端口,所述目标频段为新空口NR频段中除所述第二频段外的频段中的一个频段,所述第六不动端连接第一功率输出端口,所述第七不动端连接第二功率输出端口,所述第八不动端连接第三功率输出端口。
- 根据权利要求3所述的射频电路,其中,所述第二频段收发单元还包括第四开关,所述第四开关包括第五动端、第九不动端和第十不动端,所述第九不动端连接所述第一耦合器的第三端,所述第十不动端用于连接功率检测信号输入端口,所述第五动端用于连接功率检测信号输出端口。
- 根据权利要求1所述的射频电路,其中,所述第一频段收发单元包括第五开关、第一频段接收端口以及第一频段滤波器,所述第五开关包括第六动端、第十一不动端和第十二不动端;所述第一频段收发单元的一端为所述第五开关的第十一不动端,所述第十二不动端连接所述第一频段接收端口,所述第六动端连接所述第一频段滤波器的一端,所述第一频段滤波器的另一端用于连接所述天线,所述第一频段收发单元的另一端为所述第一频段滤波器的另一端。
- 根据权利要求1所述的射频电路,其中,所述射频电路还包括第三频段收发单元,所述第一开关还包括第十三不动端,所述第十三不动端连接所述第三频段收发单元的一端,所述第三频段收发单元的另一端用于连接所述天线。
- 根据权利要求1所述的射频电路,所述射频电路还包括第二放大器、第六开关、第四频段收发单元、第七开关和第二耦合器,所述第六开关包括第七动端以及多个第十四不动端,所述第七开关包括多个第十五不动端以及相连的第八动端和第九动端,所述第四频段收发单元包括第一双工器模组,所述第一双工器模组的一侧包括多个第一传输端口和多个第二传输端口,所述第一双工器模组的另一侧包括第三传输端口;其中,所述第二放大器的输入端连接所述射频收发器,所述第二放大器 的输出端连接所述第七动端,每个第一传输端口分别连接一个第十四不动端,且所述多个第一传输端口连接的第十四不动端不同,每个第二传输端口分别连接对应频段的接收端口,所述第三传输端口连接一个第十五不动端,所述第一频段收发单元的另一端连接一个第十五不动端,所述第二频段收发单元的另一端连接一个第十五不动端,且所述第二频段收发单元的另一端连接的第十五不动端、所述第一频段收发单元的另一端连接的第十五不动端不同,且均与所述第三传输端口连接的第十五不动端不同,所述第八动端和所述第九动端用于连接所述第二耦合器的第七端,所述第二耦合器的第八端连接所述天线。
- 根据权利要求1所述的射频电路,其中,所述第一频段收发单元包括B41频段收发单元,所述第二频段收发单元包括N41频段收发单元。
- 一种电子设备,包括权利要求1-9中任一项所述的射频电路。
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KR1020237026050A KR20230124740A (ko) | 2020-12-31 | 2021-12-24 | 무선주파수 회로 및 전자기기 |
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