CN111769851A - Radio frequency device and mobile terminal - Google Patents
Radio frequency device and mobile terminal Download PDFInfo
- Publication number
- CN111769851A CN111769851A CN202010600321.0A CN202010600321A CN111769851A CN 111769851 A CN111769851 A CN 111769851A CN 202010600321 A CN202010600321 A CN 202010600321A CN 111769851 A CN111769851 A CN 111769851A
- Authority
- CN
- China
- Prior art keywords
- module
- port
- transceiver
- transmitting
- radio frequency
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 230000008878 coupling Effects 0.000 claims description 48
- 238000010168 coupling process Methods 0.000 claims description 48
- 238000005859 coupling reaction Methods 0.000 claims description 48
- 230000003321 amplification Effects 0.000 claims description 17
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 10
- 208000032470 X-linked 1 intellectual disability Diseases 0.000 description 10
- 101001077647 Homo sapiens IQ motif and SEC7 domain-containing protein 2 Proteins 0.000 description 6
- 102100025141 IQ motif and SEC7 domain-containing protein 2 Human genes 0.000 description 6
- 208000023876 non-syndromic X-linked intellectual disability 1 Diseases 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 108020004999 messenger RNA Proteins 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H04B1/38—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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
The embodiment of the application discloses a radio frequency device and a mobile terminal, and relates to the technical field of communication. The radio frequency device includes: the single-pole double-throw switch comprises a transceiver, a first transceiving unit, a second transceiving unit and a single-pole double-throw switch, wherein the transceiver comprises a first transmitting port, a second transmitting port and a first receiving port; the input end of the first transceiving unit is connected with the first transmitting port; the input end of the second transceiving unit is connected with the second transmitting port; the fixed contact of the single-pole double-throw switch is connected with the first receiving port, the first movable contact of the single-pole double-throw switch is connected with the output end of the second transceiving unit, and the second movable contact of the single-pole double-throw switch is connected with the output end of the first transceiving unit and used for selecting the first transceiving unit or the second transceiving unit to form a loop with the transceiver. The radio frequency device can effectively save manufacturing cost and occupied space on the printed circuit board.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a radio frequency device and a mobile terminal.
Background
With the rapid development of mobile terminals, radio frequency devices configured in the mobile terminals for transceiving radio frequency signals are also continuously updated.
However, the existing rf device adopts a double-pole four-throw switch to route the rf signal, which has a problem of high cost.
Disclosure of Invention
In view of the above problems, the present application provides a radio frequency device and a mobile terminal to solve the above problems.
In a first aspect, an embodiment of the present application provides a radio frequency device, including: the single-pole double-throw switch comprises a transceiver, a first transceiving unit, a second transceiving unit and a single-pole double-throw switch, wherein the transceiver comprises a first transmitting port, a second transmitting port and a first receiving port; the input end of the first transceiving unit is connected with the first transmitting port and is used for performing power amplification and coupling processing on a signal of the first transmitting port; the input end of the second transceiving unit is connected with the second transmitting port and is used for carrying out frequency adjustment on the signal of the second transmitting port; the fixed contact of the single-pole double-throw switch is connected with the first receiving port, the first movable contact of the single-pole double-throw switch is connected with the output end of the second transceiving unit, and the second movable contact of the single-pole double-throw switch is connected with the output end of the first transceiving unit and used for selecting the first transceiving unit or the second transceiving unit to form a loop with the transceiver.
In a second aspect, an embodiment of the present application provides a mobile terminal, where the mobile terminal includes a terminal body and the radio frequency device of the first aspect, and the radio frequency device is disposed in the terminal body.
The radio frequency device and the mobile terminal provided by the embodiment of the application form the radio frequency device by the transceiver, the first transceiver unit, the second transceiver unit and the single-pole double-throw switch, wherein the transceiver comprises a first transmitting port, a second transmitting port and a first receiving port; the input end of the first transceiving unit is connected with the first transmitting port and is used for performing power amplification and coupling processing on a signal of the first transmitting port; the input end of the second transceiving unit is connected with the second transmitting port and is used for carrying out frequency adjustment on the signal of the second transmitting port; the fixed contact of the single-pole double-throw switch is connected with the first receiving port, and the first movable contact of the single-pole double-throw switch is connected with the output end of the second transceiving unit. Therefore, when the single-pole double-throw switch is connected with the first movable contact, the transceiver can select the route of the second transceiver unit, and when the single-pole double-throw switch is connected with the second movable contact, the transceiver can select the route of the first transceiver unit, so that the transceiver can stably select the route of different radio frequency signals.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic structural diagram of a conventional radio frequency device according to an embodiment of the present application.
Fig. 2 shows a schematic structural diagram of a radio frequency device according to an embodiment of the present application.
Fig. 3 shows a schematic structural diagram of a radio frequency device according to another embodiment of the present application.
Fig. 4 shows a schematic structural diagram of a radio frequency device according to yet another embodiment of the present application.
Fig. 5 shows a schematic structural diagram of a mobile terminal according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is noted that the terms "first", "second", "third", and the like are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The smart phone is one of the most frequently used tools in modern society, the updating speed is faster and faster, and the functions are more and more perfect.
Among them, the rf device is an important component of the smart phone, is mainly used for transceiving rf signals to realize stable communication between the smart phone and the external device, and also needs to be optimized.
The inventor has found that, in general, a radio frequency device is configured with a radio frequency signal routing switch to select and use from multiple radio frequency signals, wherein the radio frequency signal routing switch is typically a double-pole four-throw switch. As an example, as shown in fig. 1, the radio frequency device shown in fig. 1 includes a transceiver, a Mid and High Band Tx-RxFront-End Module (MHB PAMID), a Low frequency Tx-Rx Front-End Module (LB PAMID), a multiband Power Amplifier (mmpa), an N41 Front-End transceiver Module (N41PAMID), an N78/79 Front-End transceiver Module (N78/79LPAF), a Low frequency coupler (LB coupler), a Mid and High frequency coupler (MHB coupler), and a double pole quad switch (DP 4T).
Wherein the transceiver comprises a transmit port: two TX0, three TX1, and receive port: MRX0 and MRX 1. One TX0 is connected with the input end of the MHB PAMID, the other TX0 sending port is connected with the input end of the LB PAMID, the coupling output end (CPL OUT) of the MHBPAMID is connected with one movable contact of the double-pole four-throw switch, and the coupling output end of the LB PAMID is connected with one movable contact of the double-pole four-throw switch.
The input end of the MMMBPA is connected with a TX1, the output end of the MMMBPA is respectively connected with an LB coupler and an MHBcouplexer, the CPLD port of the LB coupler is connected with the TERM port of the MHB coupler, and the CPLD port of the MHB coupler is connected with a moving contact of the double-pole four-throw switch.
The input end of the N41PAMID is connected with a TX1, the coupling output end of the N41PAMID is connected with the coupling input end (CPLIN) of the N78/79LPAF, and the coupling output end of the N78/79LPAF is connected with a moving contact of the double-pole four-throw switch.
One stationary contact of the double-pole four-throw switch is connected with MRX0, and the other stationary contact of the double-pole four-throw switch is connected with MRX 1. The coupling signal of TX0 (CPL signal or CPL) can only be connected to MRX0, and the CPL signal of TX1 is intelligently connected to MRX 1.
When the radio frequency device works, a CPL signal of an N41PAMID is firstly input into N78/79LPAF, the combination is completed through an N78/79LPAF internal single-pole double-throw (SPDT) switch, and then the signal is connected to one input end (movable contact) of DP4T, the other three input ends of DP4T are respectively connected with a CPL output of LB PAMID, a CPL output of MHB PAMID and an LMHB CPL output of MMMBPA, wherein the CPL signal is that the LB CPL output is firstly connected to a coupler of MHB CPL to complete the combination and then is input into the input end of DP4T, and the two output ends of DP4T are respectively connected with an X0 and an MRX1 of a transceiver, so that the selection of the LMHB CPL output of MMMBPA, the CPL output of MHB PAMID, the MRX output of LB PAMID and the MRNA 78/79LPAF output can be completed by switching the working state of DP 4T.
However, in practical studies, the inventor found that the double-pole four-throw switch is expensive, and occupies a large space on a Printed Circuit Board (PCB), the package is typically 2.0mm by 2.0mm, and devices such as a small capacitor around the double-pole four-throw switch occupy a large area on the PCB, and after accounting, it usually needs 6mm2The PCB layout area of (a) is large, and thus, high cost is generated in mass production and it is inconvenient to layout on the PCB.
Therefore, in view of the above problems, the inventor proposes the radio frequency device and the mobile terminal in the embodiment of the present application, and can effectively save the cost of the radio frequency device and facilitate the PCB layout of the radio frequency device by replacing the double-pole four-throw switch with the single-pole double-throw switch and changing the wiring manner of the original video device.
Referring to fig. 2, in an embodiment of the present invention, the radio frequency device 100 may include a transceiver 110, a first transceiver unit 120, a second transceiver unit 130, and a single-pole double-throw switch 140, where the transceiver 110 may include a first transmitting port 111, a second transmitting port 112, and a first receiving port 113; an input end of the first transceiving unit 120 is connected to the first transmitting port 111, and is configured to perform power amplification and coupling processing on a signal of the first transmitting port 111; the input end of the second transceiver unit 130 is connected to the second transmitting port 112, and is configured to perform frequency adjustment on a signal of the second transmitting port 112; the fixed contact 141 of the single-pole double-throw switch 140 is connected to the first receiving port 113, the first movable contact 141 of the single-pole double-throw switch 140 is connected to the output terminal of the second transceiver unit 130, and the second movable contact 142 of the single-pole double-throw switch 140 is connected to the output terminal of the first transceiver unit 120, so as to select the first transceiver unit 120 or the second transceiver unit 130 to form a loop with the transceiver 110.
In practical applications, when the single-pole double-throw switch 140 is connected to the second movable contact 142, the single-pole double-throw switch 140 may connect the first transceiver unit 120 and the transceiver 110, so that the first transceiver unit 120 and the transceiver 110 form a loop and select a radio frequency signal corresponding to the first transceiver unit 120 for transceiving, and at the same time, the single-pole double-throw switch 140 also disconnects the second transceiver unit 130 from the transceiver 110, so that the second transceiver unit 130 and the transceiver 110 cannot form a loop. When the single-pole double-throw switch 140 is connected to the first movable contact 141, the single-pole double-throw switch 140 may connect the second transceiver unit 130 and the transceiver 110, so that the second transceiver unit 130 and the transceiver 110 form a loop and a radio frequency signal corresponding to the second transceiver unit 130 is selected for transceiving, and at the same time, the single-pole double-throw switch 140 also disconnects the first transceiver unit 120 and the transceiver 110, so that the first transceiver unit 120 and the transceiver 110 cannot form a loop.
It can be seen that in the present embodiment, the radio frequency device 100 is composed of a transceiver 110, a first transceiver unit 120, a second transceiver unit 130, and a single-pole double-throw switch 140, wherein the transceiver 110 includes a first transmitting port 111, a second transmitting port 112, and a first receiving port 113; an input end of the first transceiving unit 120 is connected to the first transmitting port 111, and is configured to perform power amplification and coupling processing on a signal of the first transmitting port 111; the input end of the second transceiver unit 130 is connected to the second transmitting port 112, and is configured to perform frequency adjustment on a signal of the second transmitting port 112; the fixed contact 141 of the single pole double throw switch 140 is connected to the first receiving port 113, and the first movable contact 141 of the single pole double throw switch 140 is connected to the output terminal of the second transceiving unit 130. Therefore, when the single-pole double-throw switch 140 is connected with the first movable contact 141, the transceiver 110 is used for routing the second transceiver unit 130, and when the single-pole double-throw switch 140 is connected with the second movable contact 142, the transceiver 110 is used for routing the first transceiver unit 120, so that the transceiver 110 can stably implement routing of different radio frequency signals, in addition, because the single-pole double-throw switch 140 is low in price and small in size, the manufacturing cost of the radio frequency device 100 can be saved by replacing a double-pole four-throw switch with the single-pole double-throw switch 140, the occupied area of a PCB of the radio frequency device 100 can be saved by the single-pole double-throw switch 140, the size of the radio frequency device 100 can be effectively reduced, and the PCB layout of the radio frequency device 100 is convenient.
As shown in fig. 2, the first transceiver unit 120 may include: a multiband power amplification module 121 and a coupling module 122. The input end of the multiband power amplification module 121 is connected to the first transmission port 111; the input end of the coupling module 122 is connected to the output end of the multiband power amplifying module 121, and the output end of the coupling module 122 is connected to the second movable contact 142 of the single-pole double-throw switch 140.
The multiband power amplification module 121 may also be called a multimode multiband power amplifier module, and is configured to support a multimode multiband power amplification module. The coupling module 122 is used for coupling the signal output by the multi-band power amplifying module 121.
The multi-band power amplification module 121 may include an input terminal for receiving a signal of the transceiver 110, a low frequency transmission terminal for transmitting a low frequency signal, and a middle and high frequency transmission terminal for transmitting a middle and high frequency signal, among others.
In practical applications, the multi-band power amplification module 121 can process a signal transmitted from the first transmission port 111 by the transceiver 110 into a medium-high frequency signal and a low-frequency signal after receiving the signal, so as to effectively obtain signals of different frequency bands.
In some embodiments, as shown in fig. 3, the coupling module 122 includes: a low frequency coupler 1221 and a middle and high frequency coupler 1222. The low-frequency coupler 1221 may include an input terminal, a TERM terminal, and a CPLD terminal, and the medium-high frequency coupler 1222 may include an input terminal, a TERM terminal, and a CPLD terminal.
The input end of the low-frequency coupling mode device 1221 is connected to the low-frequency transmitting end of the multi-band power amplifying module 121. The input end of the middle-high frequency coupling mode device 1222 is connected with the high frequency transmitting end of the multiband power amplifying module 121, the TERM end of the middle-high frequency coupling mode device 1222 is connected with the CPLD end of the low frequency coupling mode device 1221, and the CPLD end of the middle-high frequency coupling mode device 1222 is connected with the second moving contact 142 of the single-pole double-throw switch 140.
In practical applications, when the single-pole double-throw switch 140 is connected to the second movable contact 142, the signal output from the CPLD terminal of the middle-high frequency coupling module 1222 can be output to the first receiving port 113 of the transceiver 110.
As shown in fig. 2, the second transceiver unit 130 may include: a first front-end transceiver module 131 and a second front-end transceiver module.
Optionally, the second transmit port 112 of the transceiver 110 may include a first transmit sub-port 1121 and a second transmit sub-port 1122.
The first front-end transceiver module 131 may include an input end for receiving a signal transmitted by the first transmitting sub-port 1121 of the transceiver 110, and a coupled input end for receiving a coupled signal and a coupled output end for outputting the coupled signal.
The second front-end transceiver module 132 may include an input end for receiving the signal transmitted by the second transmitting sub-port 1122 of the transceiver 110, a coupled input end for receiving the coupled signal, and a coupled output end for outputting the coupled signal.
An input end of the first front-end transceiver module 131 is connected to the second transmitting port 112, specifically, connected to the first transmitting sub-port 1121 of the second transmitting port 112, and a coupling output end of the first front-end transceiver module 131 is connected to the TERM port of the low-frequency coupler 1221. The input end of the second front-end transceiver module 132 is connected to the second transmitting port 112, specifically to the second transmitting sub-port 1122 of the second transmitting port 112, the coupling input end of the second front-end transceiver module 132 is connected to the coupling output end of the first front-end transceiver module 131, and the coupling output end of the second front-end transceiver module 132 is connected to the first movable contact 141 of the single-pole double-throw switch 140.
In practical applications, when the single-pole double-throw switch 140 is connected to the first movable contact 141, the signal output from the coupled output terminal of the second front-end transceiver module 132 may be output to the first receiving port 113 of the transceiver 110.
The frequency band corresponding to the first front-end transceiver module 131 and the frequency band corresponding to the second front-end transceiver module 132 may be different.
In some embodiments, the first front-end transceiver module 131 includes a radio frequency front-end module of N41 frequency band.
In some embodiments, the second front-end transceiver module 132 includes a radio frequency front-end module of N78 band or a radio frequency front-end module of N79 band. Alternatively, the second front-end transceiver module 132 may include both the rf front-end module in the N78 frequency band and the rf front-end module in the N79 frequency band.
It should be noted that, since the specification requirements of the rf device 100 sold overseas (for export) and domestic (for export) are different, in some embodiments, the rf device 100 may change the connection mode according to the export and import requirements to meet different requirements. When the radio frequency device 100 needs to meet the external requirement, the connection mode of the radio frequency device 100 of the above embodiment may be directly adopted.
In some embodiments, when the rf device 100 needs to meet the inner pin requirement, as shown in fig. 3, the second transceiver unit 130 may include: a third front-end transceiving module 133 and a fourth front-end transceiving module 134.
Optionally, the second transmit port 112 of the transceiver 110 may include a first transmit sub-port 1121 and a second transmit sub-port 1122.
The third front-end transceiver module 133 may include an input end for receiving a signal transmitted by the first transmitting sub-port 1121 of the transceiver 110, and a coupled input end for receiving a coupled signal and a coupled output end for outputting the coupled signal.
The fourth front-end transceiver module 134 may include an input end for receiving the signal transmitted by the fourth transmitting sub-port 1142 of the transceiver 110, a coupled input end for receiving the coupled signal, and a coupled output end for outputting the coupled signal.
An input end of the third front-end transceiver module 133 is connected to the second transmitting port 112, and specifically connected to the first transmitting sub-port 1121 of the second transmitting port 112; an input end of the fourth front-end transceiving module 134 is connected to the second transmitting port 112, specifically, connected to the second transmitting sub-port 1122 of the second transmitting port 112, a coupling input end of the fourth front-end transceiving module 134 is connected to a coupling output end of the third front-end transceiving module 133, and a coupling output end of the fourth front-end transceiving module 134 is connected to the first receiving port 113.
The frequency band corresponding to the third front-end transceiver module 133 and the frequency band corresponding to the fourth front-end transceiver module 134 may be different.
In some embodiments, the third front-end transceiver module 133 may include a radio frequency front-end module in the N41 frequency band.
In some embodiments, the fourth front-end transceiver module 134 may include an N78 band rf front-end module or an N79 band rf front-end module. Optionally, the fourth front-end transceiver module 134 may further include a radio frequency front-end module in the N78 frequency band (hereinafter, may be abbreviated as N78) and a radio frequency front-end module in the N79 frequency band (hereinafter, may be abbreviated as N79).
In practical application, as an example, the CPL output of the N41PAMID may be divided into two paths by adopting a COMMON pad compatible design, wherein one path is input to a transmit-receive Front End Module (Tx-Rx Front-End Module, LPAF) of N78/79, and a combining is completed through an SPDT switch inside the LPAF of N78/79, optionally, the combined path may be connected to an HBPORT of the combiner of UHB + LMHB, and a compatible jumper design is made between the HB PORT of the combiner and the COMMON PORT. The other path is input to an LB coupler of the MMMB PA to complete the combination, the output of the LB coupler of the MMMB PA is output to an MHB coupler of the MMMB PA to complete the combination again, the output of the LB coupler of the MMMB PA is connected to an LB PORT of the combination device from the MHB coupler of the MMMB PA, and the public end of the combination device is finally connected to the MRX1 of the transceiver 110. The jumper design is compatible, specifically, the CPL signal of N41 is output to the combiner after passing through the SPDT switch inside the LPAF of N78/79, and then output to the MRX1 of the transceiver through the combiner, and a jumper compatible bit is reserved, and when another path of the combiner is not used, the combiner is omitted in a jumper compatible manner to reduce cost.
Alternatively, as shown in fig. 3, the CPL signal of the N41PAMID in the inner-marketed rf device 100 is output to the LPAF of N78/79, and the combiner is attached empty, running a compatible jumper to the MRX1 of the transceiver 110. The two combining channels of the combiner can only use one path under the condition of internal pin of the combiner, and the cost of the combiner can be saved by skipping the combiner through the reserved jumper wire compatible bit.
As shown in fig. 2, the CPL signal of N41PAMID in the external-market rf device 100 is output to the LB coupler of MMMBPA, and after a series of combining, is connected to the LB PORT of the combiner through CPL of N41 and MMMBPA, and the CPL of N77/78 is connected to the HB PORT of the combiner, and at this time, the combiner is attached, and finally input to MRX1 of the transceiver 110 after passing through the combiner. Therefore, the radio frequency device 100 of the embodiment can quickly meet the specification requirements of the inner pin or the outer pin.
In this embodiment, the connection mode of the rf device 100 is adaptively adjusted according to different specifications, and the rf device 100 does not need to be separately manufactured according to different specifications, so that the flexibility of the rf device 100 is increased, and the manufacturing cost of the rf device 100 can be effectively saved.
Referring to fig. 4, a radio frequency device 100 according to another embodiment of the present application is provided, where the radio frequency device 100 includes: the transceiver 110 comprises a first transmitting port 111, a second transmitting port 112, a third transmitting port 114, a first receiving port 113 and a second receiving port 115, a first transceiving unit 120, a second transceiving unit 130, a third transceiving unit 150 and a single-pole double-throw switch 140.
The input end of the first transceiving unit 120 is connected to the first transmitting port 111, and is configured to perform power amplification and coupling processing on a signal of the first transmitting port 111; the input end of the second transceiver unit 130 is connected to the second transmitting port 112, and is configured to perform frequency adjustment on a signal of the second transmitting port 112; the fixed contact 141 of the single-pole double-throw switch 140 is connected to the first receiving port 113, the first movable contact 141 of the single-pole double-throw switch 140 is connected to the output terminal of the second transceiver unit 130, and the second movable contact 142 of the single-pole double-throw switch 140 is connected to the output terminal of the first transceiver unit 120, so as to select the first transceiver unit 120 or the second transceiver unit 130 to form a loop with the transceiver 110.
Wherein, the input terminal of the third transceiving unit 150 is connected to the third transmitting port 114, and the output terminal of the third transceiving unit 150 is connected to the second receiving port 115, so as to form a loop with the transceiver 110 alone.
In this embodiment, the single-pole double-throw switch 140 connected to the first receiving port 113 selects the first transceiving unit 120 or the second transceiving unit 130 to form a loop with the transceiver 110, and separately allows the second receiving port 115 to form a loop with the transceiver 110 through the third transceiving unit 150, so as to increase the isolation between the first receiving port 113 and the second receiving port 115, and avoid the mutual interference problem between the first receiving port 113 and the second receiving port 115 under a Dual-connection link (endec) or an uplink aggregation carrier (UL CA).
As shown in fig. 4, the third transceiver unit 150 includes: a low frequency front end transceiver module 152 and a medium and high frequency front end transceiver module 151.
Wherein the third transmit port 114 includes a third transmit sub-port 1141 and a fourth transmit sub-port 1142.
The input end of the middle-high frequency front-end transceiver module 151 is connected to the third transmitting port 114, specifically, the third transmitting sub-port 1141. The input end of the low-frequency front-end transceiver module 152 is connected to the third transmitting port 114, specifically to the fourth transmitting sub-port 1142, the coupling input end of the low-frequency front-end transceiver module 152 is connected to the coupling output end of the medium-high frequency front-end transceiver module 151, and the coupling output end of the low-frequency front-end transceiver module 152 is connected to the second receiving port 115.
As an example, as shown in FIG. 4, the CPL signal of MHB PAMID is first input to LBPAMID, then the combination can be completed by the internal single-pole double-throw switch of LBPAMID, and then directly input to MRX0 of transceiver 110.
Referring to fig. 5, in the mobile terminal 10 provided in an embodiment of the present application, the mobile terminal may include a terminal body 200 and the radio frequency device 100 provided in the foregoing embodiment, wherein the radio frequency device 100 may be disposed in the terminal body 200.
Alternatively, the mobile terminal 10 includes, but is not limited to, a smart phone, a tablet computer, a personal computer, a smart watch, and the like.
In some embodiments, the mobile terminal 10 includes a processor coupled to the single pole double throw switch 140 for controlling the single pole double throw switch 140 to switch to the first movable contact 141 or the second movable contact 142.
To sum up, the radio frequency device and the mobile terminal provided in the embodiments of the present application form a radio frequency device by a transceiver, a first transceiver unit, a second transceiver unit, and a single-pole double-throw switch, where the transceiver includes a first transmit port, a second transmit port, and a first receive port; the input end of the first transceiving unit is connected with the first transmitting port and is used for performing power amplification and coupling processing on a signal of the first transmitting port; the input end of the second transceiving unit is connected with the second transmitting port and is used for carrying out frequency adjustment on the signal of the second transmitting port; the fixed contact of the single-pole double-throw switch is connected with the first receiving port, and the first movable contact of the single-pole double-throw switch is connected with the output end of the second transceiving unit. Therefore, when the single-pole double-throw switch is connected with the first movable contact, the transceiver can select the route of the second transceiver unit, when the single-pole double-throw switch is connected with the second movable contact, the transceiver can select the route of the first transceiver unit, so that the transceiver can select the route of different radio frequency signals stably. Specifically, by accounting, for cell phones, the rf device of the present embodiment based on the single pole double throw switch design can save about 3.7mm in PCB space2￥ 2.14.14 is saved for each mobile phone on the inner pin version, ￥ 1.83.83 is saved for each mobile phone on the outer pin version additionally, by the connection method of the fixed first receiving port, the scheme that the DP4T is changed into a combiner or a jumper NC is realized by the CPL signal of the N41PAMID according to the connection method of the inner/outer pin versions, the cost and the space are optimized, the isolation between the MRX0 and the MRX1 is improved, the isolation between the first receiving port and the second receiving port is improved, and the mutual interference between the two receiving ports is avoided.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A radio frequency device, comprising:
a transceiver comprising a first transmit port, a second transmit port, and a first receive port;
the input end of the first transceiving unit is connected with the first transmitting port and is used for performing power amplification and coupling processing on a signal of the first transmitting port;
the input end of the second transceiving unit is connected with the second transmitting port and is used for carrying out frequency adjustment on the signal of the second transmitting port; and
and a fixed contact of the single-pole double-throw switch is connected with the first receiving port, a first movable contact of the single-pole double-throw switch is connected with the output end of the second transceiving unit, and a second movable contact of the single-pole double-throw switch is connected with the output end of the first transceiving unit and is used for selecting the first transceiving unit or the second transceiving unit to form a loop with the transceiver.
2. The radio frequency device according to claim 1, wherein the first transceiving unit comprises:
a multiband power amplification module, an input end of which is connected with the first transmission port; and
and the input end of the coupling module is connected with the output end of the multiband power amplification module, and the output end of the coupling module is connected with the second movable contact of the single-pole double-throw switch.
3. The radio frequency device according to claim 2, wherein the coupling module comprises:
the input end of the low-frequency coupler is connected with the low-frequency transmitting end of the multiband power amplification module; and
the input end of the medium-high frequency coupler is connected with the medium-high frequency transmitting end of the multiband power amplification module, the TERM end of the medium-high frequency coupler is connected with the CPLD end of the low frequency coupler, and the CPLD end of the medium-high frequency coupler is connected with the second movable contact of the single-pole double-throw switch.
4. The radio frequency device according to claim 3, wherein the second transceiving unit comprises:
the input end of the first front-end receiving and transmitting module is connected with the second transmitting port, and the coupling output end of the first front-end receiving and transmitting module is connected with the TERM port of the low-frequency coupler; and
the input end of the second front-end transceiver module is connected with the second transmitting port, the coupling input end of the second front-end transceiver module is connected with the coupling output end of the first front-end transceiver module, the coupling output end of the second front-end transceiver module is connected with the first movable contact of the single-pole double-throw switch, and the frequency band corresponding to the first front-end transceiver module is different from the frequency band corresponding to the second front-end transceiver module.
5. The radio frequency device according to claim 4, wherein the first front-end transceiver module comprises an N41 band radio frequency front-end module.
6. The RF device of claim 4, wherein the second front-end transceiver module comprises an N78 band RF front-end module or an N79 band RF front-end module.
7. The radio frequency device according to claim 1, wherein the second transceiving unit comprises:
the input end of the third front-end receiving and transmitting module is connected with the second transmitting port; and
and the input end of the fourth front-end receiving and sending module is connected with the second transmitting port, the coupling input end of the fourth front-end receiving and sending module is connected with the coupling output end of the third front-end receiving and sending module, the coupling output end of the fourth front-end receiving and sending module is connected with the first receiving port, and the frequency band corresponding to the third front-end receiving and sending module is different from the frequency band corresponding to the fourth front-end receiving and sending module.
8. The radio frequency device according to any one of claims 1 to 7, wherein the transceiver further comprises a third transmit port and a second receive port, the radio frequency device further comprising:
and the input end of the third transceiving unit is connected with the third transmitting port, and the output end of the third transceiving unit is connected with the second receiving port.
9. The radio frequency device according to claim 8, wherein the third transceiving unit comprises:
the input end of the medium-high frequency front end receiving and transmitting module is connected with the third transmitting port;
and the coupling input end of the low-frequency front-end receiving and transmitting module is connected with the coupling output end of the medium-high frequency front-end receiving and transmitting module, and the coupling output end of the low-frequency front-end receiving and transmitting module is connected with the second receiving port.
10. A mobile terminal, characterized by comprising a terminal body and a radio frequency device according to any one of claims 1 to 9, said radio frequency device being disposed within said terminal body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010600321.0A CN111769851B (en) | 2020-06-28 | 2020-06-28 | Radio frequency device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010600321.0A CN111769851B (en) | 2020-06-28 | 2020-06-28 | Radio frequency device and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111769851A true CN111769851A (en) | 2020-10-13 |
| CN111769851B CN111769851B (en) | 2022-04-19 |
Family
ID=72722499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010600321.0A Active CN111769851B (en) | 2020-06-28 | 2020-06-28 | Radio frequency device and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111769851B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517904A (en) * | 2021-04-22 | 2021-10-19 | Tcl通讯（宁波）有限公司 | Radio frequency front-end circuit and electronic equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604980A (en) * | 2009-06-24 | 2009-12-16 | 中兴通讯股份有限公司 | Implementation method, portable terminal and the mainboard thereof of portable terminal frequency range coupling |
| CN101841346A (en) * | 2009-03-19 | 2010-09-22 | 鸿富锦精密工业（深圳）有限公司 | Wireless transceiver |
| US20130217343A1 (en) * | 2012-02-22 | 2013-08-22 | Mediatek Singapore Pte. Ltd. | Wireless communication unit, integrated circuit and method therefor |
| US20140087670A1 (en) * | 2011-11-04 | 2014-03-27 | Huizhou Tcl Mobile Communication Co., Ltd. | Mobile communication terminal |
| CN105827269A (en) * | 2015-09-24 | 2016-08-03 | 维沃移动通信有限公司 | Radio frequency signal transceiving device and electronic apparatus |
| CN106452471A (en) * | 2016-09-29 | 2017-02-22 | 宇龙计算机通信科技(深圳)有限公司 | GSM radio frequency circuit and terminal comprising circuit |
| CN107707264A (en) * | 2017-08-31 | 2018-02-16 | 希姆通信息技术（上海）有限公司 | Power detection feedback circuit and method |
| CN108259058A (en) * | 2016-12-27 | 2018-07-06 | 珠海全志科技股份有限公司 | A kind of RF front-end circuit |
| CN110504982A (en) * | 2019-08-16 | 2019-11-26 | 维沃移动通信有限公司 | A kind of RF front-end circuit and mobile terminal |
| CN110971262A (en) * | 2019-11-29 | 2020-04-07 | 惠州Tcl移动通信有限公司 | Radio frequency circuit, antenna device and mobile terminal |
-
2020
- 2020-06-28 CN CN202010600321.0A patent/CN111769851B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841346A (en) * | 2009-03-19 | 2010-09-22 | 鸿富锦精密工业（深圳）有限公司 | Wireless transceiver |
| CN101604980A (en) * | 2009-06-24 | 2009-12-16 | 中兴通讯股份有限公司 | Implementation method, portable terminal and the mainboard thereof of portable terminal frequency range coupling |
| US20140087670A1 (en) * | 2011-11-04 | 2014-03-27 | Huizhou Tcl Mobile Communication Co., Ltd. | Mobile communication terminal |
| US20130217343A1 (en) * | 2012-02-22 | 2013-08-22 | Mediatek Singapore Pte. Ltd. | Wireless communication unit, integrated circuit and method therefor |
| CN105827269A (en) * | 2015-09-24 | 2016-08-03 | 维沃移动通信有限公司 | Radio frequency signal transceiving device and electronic apparatus |
| CN106452471A (en) * | 2016-09-29 | 2017-02-22 | 宇龙计算机通信科技(深圳)有限公司 | GSM radio frequency circuit and terminal comprising circuit |
| CN108259058A (en) * | 2016-12-27 | 2018-07-06 | 珠海全志科技股份有限公司 | A kind of RF front-end circuit |
| CN107707264A (en) * | 2017-08-31 | 2018-02-16 | 希姆通信息技术（上海）有限公司 | Power detection feedback circuit and method |
| CN110504982A (en) * | 2019-08-16 | 2019-11-26 | 维沃移动通信有限公司 | A kind of RF front-end circuit and mobile terminal |
| CN110971262A (en) * | 2019-11-29 | 2020-04-07 | 惠州Tcl移动通信有限公司 | Radio frequency circuit, antenna device and mobile terminal |
Non-Patent Citations (1)
| Title |
|---|
| 陈浪，等: "一种2.4 GHz CMOS射频前端电路", 《微电子学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517904A (en) * | 2021-04-22 | 2021-10-19 | Tcl通讯（宁波）有限公司 | Radio frequency front-end circuit and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111769851B (en) | 2022-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113746496B (en) | Radio frequency system and electronic equipment | |
| CN109861734B (en) | Radio frequency system, antenna switching control method, related equipment and storage medium | |
| CN112187297B (en) | Radio frequency transceiving system and communication device | |
| CN109004942B (en) | Radio frequency system and electronic equipment | |
| CN111600616B (en) | Radio frequency front end architecture, antenna device and communication terminal | |
| EP3661064B1 (en) | Radio frequency circuit and electronic device | |
| KR102108708B1 (en) | Antenna and rf front-end arrangement | |
| KR101741968B1 (en) | Wireless electronic device with antenna switching circuitry | |
| CN111277278B (en) | Radio frequency system and electronic equipment | |
| KR20140099890A (en) | System and methods for performing antenna transmit diversity | |
| CN112042133B (en) | Transmitting module, antenna switching control method and related products | |
| JP2004194340A (en) | Rf pre-circuit for dual band radio transceiver module | |
| CN111769851B (en) | Radio frequency device and mobile terminal | |
| CN113472385B (en) | Radio frequency circuit, antenna device and electronic equipment | |
| CN214315261U (en) | Radio frequency module, radio frequency circuit and electronic equipment | |
| WO2021143757A1 (en) | Rf system and electronic device | |
| CN212324099U (en) | Radio frequency circuit and electronic device | |
| CN114745034B (en) | Radio frequency module, signal receiving and transmitting method and wireless communication equipment | |
| JP3982683B2 (en) | Wireless communication circuit | |
| CN113162649B (en) | Radio frequency front end module, antenna device and control method of radio frequency front end module | |
| KR20210013261A (en) | Front end module | |
| CN112953573A (en) | Radio frequency front end architecture | |
| CN219577051U (en) | Radio frequency front-end device, antenna module and electronic equipment | |
| CN112751584B (en) | Switch, radio frequency circuit and terminal equipment | |
| CN114759963B (en) | SRS polling method, radio frequency circuit and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |