CN112886987B - Radio frequency circuit and electronic equipment - Google Patents
Radio frequency circuit and electronic equipment Download PDFInfo
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- CN112886987B CN112886987B CN202110339988.4A CN202110339988A CN112886987B CN 112886987 B CN112886987 B CN 112886987B CN 202110339988 A CN202110339988 A CN 202110339988A CN 112886987 B CN112886987 B CN 112886987B
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- radio frequency
- movable contact
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- throw switch
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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
- H04B1/38—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
Abstract
The application discloses radio frequency circuit and electronic equipment belongs to the technical field of communication. The radio frequency circuit includes: the system comprises a first radio frequency transceiver, a first amplifier module, a second radio frequency transceiver, a second amplifier module, a double-pole four-throw switch and an antenna group; the double-pole four-throw switch comprises a movable contact end and a fixed contact end; the first radio frequency transceiver is respectively connected with the first end of the first amplifier module and the movable contact end of the double-pole four-throw switch; the second end of the first amplifier module is connected with the antenna group; the second radio frequency transceiver is connected with the movable contact end of the double-pole four-throw switch; the fixed contact end of the double-pole four-throw switch is connected with the first end of the second amplifier module; the second end of the second amplifier module is connected with the antenna group; the double-pole four-throw switch connects the antenna group with the first radio frequency transceiver or the second radio frequency transceiver according to signals sent or received by the antenna group. The connection between the two radio frequency transceivers and the same antenna is realized through the double-pole four-throw switch, so that the number of the antennas is reduced, and the space is saved.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a radio frequency circuit and electronic equipment.
Background
With the advancement of science and technology, the communication requirements of users are not satisfied at present, and 5G mobile terminals are developed accordingly. In order to obtain a higher communication bandwidth, the frequency range of the 5G band is expanded on the basis of 4G, for example, the n79 band.
The n79 independent networking (SA) supports dual uplink, and two n79 radio frequency Power Amplifiers (PAs) and corresponding switch filters are needed, but the circuit layout area of the circuit board will be increased and the size of the mobile terminal device will be affected under the requirement of miniaturization of the mobile terminal device.
Disclosure of Invention
The embodiment of the application provides a radio frequency circuit and electronic equipment, and can solve the problem that the occupied area of the circuit is large due to n79 SA double uplink in the prior art.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, a radio frequency circuit is provided, including: the system comprises a first radio frequency transceiver, a first amplifier module, a second radio frequency transceiver, a second amplifier module, a double-pole four-throw switch and an antenna group; the double-pole four-throw switch comprises a movable contact end and a fixed contact end;
the first radio frequency transceiver is respectively connected with the first end of the first amplifier module and the movable contact end of the double-pole four-throw switch;
the second end of the first amplifier module is connected with the antenna group;
the second radio frequency transceiver is connected with the movable contact end of the double-pole four-throw switch;
the fixed contact end of the double-pole four-throw switch is connected with the first end of the second amplifier module;
the second end of the second amplifier module is connected with the antenna group;
the double-pole four-throw switch is used for switching on the antenna group with the first radio frequency transceiver or the second radio frequency transceiver according to signals sent or received by the antenna group.
In a second aspect, an electronic device is provided, comprising: the radio frequency circuit of the first aspect.
In an embodiment of the present application, the radio frequency circuit includes a first radio frequency transceiver, a first amplifier module, a second radio frequency transceiver, a second amplifier module, a double-pole four-throw switch, and an antenna group, where the double-pole four-throw switch includes a movable contact end and a fixed contact end, the first radio frequency transceiver is connected to the first end of the first amplifier module and the movable contact end of the double-pole four-throw switch, respectively, the second end of the first amplifier module is connected to the antenna group, the second radio frequency transceiver is connected to the movable contact end of the double-pole four-throw switch, the fixed contact end of the double-pole four-throw switch is connected to the first end of the second amplifier module, and the second end of the second amplifier module is connected to the antenna group, where the double-pole four-throw switch connects the antenna group to the first radio frequency transceiver or to the second radio frequency transceiver according to a signal sent or received by the antenna group. According to the embodiment of the application, the connection between the two radio frequency transceivers and the antenna is realized through the double-pole four-throw switch, the number of the antennas and the number of devices are reduced, the layout area on the PCB is reduced, and the space is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application;
fig. 2 is a circuit diagram of a radio frequency circuit according to an embodiment of the present application.
In the figure, 101 — first radio frequency transceiver; 102-a second radio frequency transceiver; 20-a double pole, four throw switch; 301-a first amplifier module; 302-a second amplifier module; and 40-antenna group.
Detailed Description
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, but not all, of the embodiments of the present 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.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application are capable of operation in sequences other than those illustrated or described herein, and that the terms "first," "second," etc. are generally used in a generic sense and do not limit the number of terms, e.g., a first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The radio frequency circuit and the electronic device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
As shown in fig. 1-2, the radio frequency circuit may include: a first radio frequency transceiver 101, a first amplifier module 301, a second radio frequency transceiver 102, a second amplifier module 302, a double-pole four-throw switch 20 and an antenna group 40; the double-pole four-throw switch 20 includes a movable contact and a fixed contact.
Specifically, the first rf transceiver 101 is connected to the first end of the first amplifier module 301 and the movable contact of the double-pole four-throw switch 20 respectively; the second end of the first amplifier module 301 is connected to the antenna group 40; the second radio frequency transceiver 102 is connected with the movable contact end of the double-pole four-throw switch 20; the fixed contact of the double-pole four-throw switch 20 is connected with the first end of the second amplifier module 302; a second terminal of the second amplifier module 302 is connected to the antenna group 40.
The double-pole-four-throw switch 20 switches the antenna group 40 on the first radio frequency transceiver 101 or the second radio frequency transceiver 102 according to signals transmitted or received by the antenna group 40.
The first rf transceiver 101 may be a group rf signal processor chip, and the second rf transceiver 102 may be a WIFI signal processing chip.
That is, it can be found that the n79 network frequency is closer to the WIFI network frequency according to the frequency, and the two networks can use one antenna to transmit or receive signals, so that one antenna can be shared by the first rf transceiver 101 and the second rf transceiver 102 by using one double-pole four-throw switch 20, which can save one n79 rf Power Amplifier (PA) and a corresponding switch filter, and correspondingly reduce one antenna, so that the wiring area on the PCB board is reduced, and the entire space is saved.
In the embodiment of the present application, the radio frequency circuit includes a first radio frequency transceiver 101, a first amplifier module 301, a second radio frequency transceiver 102, a second amplifier module 302, a double-pole four-throw switch 20 and an antenna group 40, the double-pole four-throw switch 20 includes a movable contact end and a fixed contact end, the first radio frequency transceiver 101 is connected to the first end of the first amplifier module 301 and the movable contact end of the double-pole four-throw switch 20, respectively, the second end of the first amplifier module 301 is connected to the antenna group 40, the second radio frequency transceiver 102 is connected to the movable contact end of the double-pole four-throw switch 20, the fixed contact end of the double-pole four-throw switch 20 is connected to the first end of the second amplifier module 302, and the second end of the second amplifier module 302 is connected to the antenna group 40, wherein the double-pole four-throw switch 20 connects the antenna group 40 to the first radio frequency transceiver 101 or the second radio frequency transceiver 102 according to a signal sent or received by the antenna group 40. According to the embodiment of the application, the connection between the two radio frequency transceivers and the antennas is realized through the double-pole four-throw switch 20, the number of the antennas and the number of devices are reduced, the layout area on a PCB is reduced, and the space is saved.
In one possible embodiment of the present application, the first amplifier module 301 may include: the power amplifier comprises a first low noise amplifier, a first power amplifier, a first switching device and a power detection module.
Specifically, a first end of the first low noise amplifier is connected to a first receiving end of the first radio frequency transceiver 101, and a second end of the first low noise amplifier is connected to a first end of the first switching device; a first end of the first power amplifier is connected to a first transmitting end of the first rf transceiver 101, and a second end of the first power amplifier is connected to a first end of the first switching device; the second end of the first switch device is connected to the first end of the power detection module, and the second end of the power detection module is connected to the antenna set 40.
The first switching device switches the antenna group 40 to the first low noise amplifier or to the first power amplifier according to a signal transmitted or received by the antenna group 40.
That is, the first rf transceiver 101 is implemented by a first switching device to transmit and receive signals using an antenna. When one end of the first switching device is connected with the first low noise amplifier and the other end of the first switching device is connected with the power detection module, the first switching device can receive signals through the antenna and transmit the signals to the first radio frequency transceiver 101 for processing; when one end of the first switching device is connected to the first power amplifier and the other end is connected to the power detection module, the signal transmitted by the first rf transceiver 101 may be transmitted through the antenna.
Further, the first amplifier module 301 may further include: a first filter.
Specifically, a first end of the first filter is connected to a second end of the first switching device, and a second end of the first filter is connected to a first end of the power detection module.
That is, the transmitted or received signal may be filtered by the first filter, so that the transmitted or received signal is more stable.
Alternatively, the first switching device may be a single pole double throw switch, and the first switching device may include a first fixed contact, a first movable contact, and a second movable contact.
Specifically, the first movable contact end is connected with the second end of the first low-noise amplifier, the second movable contact end is connected with the second end of the first power amplifier, and the first fixed contact end is connected with the first end of the power detection module.
In the embodiment of the application, the transmission and the reception of the antenna can be realized through a single-pole double-throw switch.
In a specific embodiment of the present application, the double pole, four throw switch 20 may comprise: the second fixed contact end, the third movable contact end, the fourth movable contact end, the fifth movable contact end and the sixth movable contact end.
Specifically, the second and third fixed contacts are connected to the second amplifier module 302; the third movable contact end is connected with the second receiving end of the first radio frequency transceiver 101; the fourth movable contact terminal is connected with the second transmitting terminal of the first radio frequency transceiver 101; the fifth movable contact end is connected with the receiving end of the second radio frequency transceiver 102; the sixth movable contact is connected with the transmitting end of the second radio frequency transceiver 102.
Further, the second amplification module may include: a second low noise amplifier, a second power amplifier, and a second switching device.
The first end of the second low-noise amplifier is connected with the second fixed contact end, and the second end of the second low-noise amplifier is connected with the first end of the second switching device; the first end of the second power amplifier is connected with the third fixed contact end, and the second end of the second power amplifier is connected with the first end of the second switching device; a second end of the second switching device is connected to the antenna group 40; the second switching device switches the antenna group 40 to the second low noise amplifier or to the second power amplifier according to a signal transmitted or received by the antenna group 40.
That is, the second rf transceiver 102 is implemented by a second switching device to transmit and receive signals using an antenna. When one end of the second switching device is connected to the second low noise amplifier and the other end is connected to the antenna, the signal may be received by the antenna and transmitted to the second rf transceiver 102 for processing; when one end of the second switching device is connected to the second power amplifier and the other end is connected to the antenna, the signal transmitted by the second rf transceiver 102 may be transmitted through the antenna.
Further, the second amplifier module 302 may further include: a second filter.
Specifically, a first terminal of the second filter is connected to a second terminal of the second switching device, and a second terminal of the second filter is connected to the antenna group 40.
That is, the transmitted or received signal may be filtered by the second filter, so that the transmitted or received signal is more stable.
Alternatively, the second switching device may be a single pole double throw switch, and the second switching device may include a fourth fixed contact, a seventh movable contact, and an eighth movable contact.
The seventh moving contact end is connected with the second end of the second low noise amplifier, the eighth moving contact end is connected with the second end of the second power amplifier, and the fourth fixed contact end is connected with the antenna group 40.
In the embodiment of the present application, the transmission and reception of the antenna can be realized by a single-pole double-throw switch.
In one possible embodiment of the present application, antenna group 40 may include a first antenna and a second antenna.
Specifically, the first antenna is connected to the second end of the first amplifier module 301; the second antenna is connected to the second terminal of the second amplifier module 302.
That is, a first frequency of the first radio frequency transceiver 101 may be transmitted or received through the first antenna; the second frequency of the first rf transceiver 101 and the frequency of the second rf transceiver 102 can be transmitted or received through the second antenna and can be distinguished by a double pole, four throw switch 20, as described in detail in the above embodiment.
An embodiment of the present application further provides an electronic device, including the radio frequency circuit according to any of the above embodiments. The functions of the radio frequency circuit can be realized, the same effect can be achieved, and in order to avoid repetition, the description is omitted here.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
Claims (4)
1. A radio frequency circuit, comprising: the system comprises a first radio frequency transceiver, a first amplifier module, a second radio frequency transceiver, a second amplifier module, a double-pole four-throw switch and an antenna group; the double-pole four-throw switch comprises a movable contact end and a fixed contact end;
the first radio frequency transceiver is respectively connected with the first end of the first amplifier module and the movable contact end of the double-pole four-throw switch;
the second end of the first amplifier module is connected with the antenna group;
the second radio frequency transceiver is connected with the movable contact end of the double-pole four-throw switch;
the fixed contact end of the double-pole four-throw switch is connected with the first end of the second amplifier module;
the second end of the second amplifier module is connected with the antenna group;
the double-pole four-throw switch is used for switching on the antenna group with the first radio frequency transceiver or the second radio frequency transceiver according to signals transmitted or received by the antenna group;
the first amplifier module comprises: the power amplifier comprises a first low noise amplifier, a first power amplifier, a first switching device, a power detection module and a first filter;
a first end of the first low noise amplifier is connected with a first receiving end of the first radio frequency transceiver, and a second end of the first low noise amplifier is connected with a first end of the first switching device;
a first end of the first power amplifier is connected with a first transmitting end of the first radio frequency transceiver, and a second end of the first power amplifier is connected with a first end of the first switching device;
a second end of the first switching device is connected with a first end of the first filter, and a second end of the first filter is connected with a first end of the power detection module;
the second end of the power detection module is connected with the antenna group;
wherein the first switching device switches on the antenna group with the first low noise amplifier or with a first power amplifier according to a signal transmitted or received by the antenna group;
the double-pole, four-throw switch comprises: the second fixed contact end, the third movable contact end, the fourth movable contact end, the fifth movable contact end and the sixth movable contact end;
the second fixed contact end and the third fixed contact end are both connected with the second amplifier module; the third movable contact end is connected with a second receiving end of the first radio frequency transceiver; the fourth movable contact end is connected with the second transmitting end of the first radio frequency transceiver; the fifth movable contact end is connected with the receiving end of the second radio frequency transceiver; the sixth movable contact end is connected with the transmitting end of the second radio frequency transceiver;
the second amplifier module includes: the second low noise amplifier, the second power amplifier, the second switching device and the second filter;
the second switch device is a single-pole double-throw switch and comprises a fourth fixed contact end, a seventh movable contact end and an eighth movable contact end;
the first end of the second low noise amplifier is connected with the second fixed contact end, and the second end of the second low noise amplifier is connected with the seventh movable contact end of the second switching device;
the first end of the second power amplifier is connected with the third fixed contact end, and the second end of the second power amplifier is connected with the eighth movable contact end of the second switching device;
a second terminal of the second switching device is connected to a first terminal of the second filter;
the second end of the second filter is connected with the antenna group;
wherein the second switching device switches on the antenna group with the second low noise amplifier or with the second power amplifier according to a signal transmitted or received by the antenna group.
2. The circuit of claim 1, wherein the first switching device is a single pole double throw switch, the first switching device comprising a first fixed contact, a first movable contact, and a second movable contact;
the first movable contact end is connected with the second end of the first low noise amplifier, the second movable contact end is connected with the second end of the first power amplifier, and the first fixed contact end is connected with the first end of the first filter.
3. The circuit of claim 1, wherein the antenna group comprises: a first antenna and a second antenna;
the first antenna is connected with the second end of the first amplifier module;
the second antenna is connected with the second end of the second amplifier module.
4. An electronic device, comprising: a radio frequency circuit as claimed in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110339988.4A CN112886987B (en) | 2021-03-30 | 2021-03-30 | Radio frequency circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110339988.4A CN112886987B (en) | 2021-03-30 | 2021-03-30 | Radio frequency circuit and electronic equipment |
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| Publication Number | Publication Date |
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| CN112886987A CN112886987A (en) | 2021-06-01 |
| CN112886987B true CN112886987B (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110339988.4A Active CN112886987B (en) | 2021-03-30 | 2021-03-30 | Radio frequency circuit and electronic equipment |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109698711A (en) * | 2018-12-18 | 2019-04-30 | 维沃移动通信有限公司 | A kind of radio frequency mould group and terminal device |
| CN110350941A (en) * | 2019-07-29 | 2019-10-18 | 维沃移动通信有限公司 | Signal receiving/transmission device, electronic equipment and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826884B (en) * | 2010-04-16 | 2013-01-30 | 华为终端有限公司 | Multi-module terminal circuit and multi-module terminal |
| CN201869169U (en) * | 2010-10-29 | 2011-06-15 | 北京握奇数据系统有限公司 | Radio frequency power amplification module and device |
| CN202435392U (en) * | 2011-12-02 | 2012-09-12 | 惠州Tcl移动通信有限公司 | Radio frequency module and mobile communication terminal thereof |
| CN103249135B (en) * | 2012-02-14 | 2017-06-23 | 联发科技股份有限公司 | Radio communication device |
| CN104753555A (en) * | 2013-12-30 | 2015-07-01 | 联芯科技有限公司 | Two-channel radio frequency structure |
| CN111313915B (en) * | 2020-03-23 | 2021-10-15 | 维沃移动通信有限公司 | Electronic equipment |
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2021
- 2021-03-30 CN CN202110339988.4A patent/CN112886987B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698711A (en) * | 2018-12-18 | 2019-04-30 | 维沃移动通信有限公司 | A kind of radio frequency mould group and terminal device |
| CN110350941A (en) * | 2019-07-29 | 2019-10-18 | 维沃移动通信有限公司 | Signal receiving/transmission device, electronic equipment and control method |
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| CN112886987A (en) | 2021-06-01 |
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