CN111817733A - Radio frequency structure and mobile terminal - Google Patents
Radio frequency structure and mobile terminal Download PDFInfo
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- CN111817733A CN111817733A CN202010735708.7A CN202010735708A CN111817733A CN 111817733 A CN111817733 A CN 111817733A CN 202010735708 A CN202010735708 A CN 202010735708A CN 111817733 A CN111817733 A CN 111817733A
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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
- H04B1/0057—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 using diplexing or multiplexing filters for selecting the desired 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
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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 a radio frequency structure and a mobile terminal. The radio frequency structure comprises a radio frequency transceiver, a first passage, a second passage, a first antenna and a second antenna; the first path is connected between the radio frequency transceiver and the first antenna and used for transmitting a first frequency band signal or a second frequency band signal; receiving the first frequency band signal, the second frequency band signal and a third frequency band signal; the second path is connected between the radio frequency transceiver and the second antenna, and is used for transceiving the first frequency band signal and the second frequency band signal or transceiving the third frequency band signal. The embodiment of the application can optimize the radio frequency space and reduce the cost.
Description
Technical Field
The application relates to the technical field of communication, in particular to a radio frequency structure and a mobile terminal.
Background
Generally, the architecture design of uplink carrier aggregation is implemented by using multiple antennas, multiplexers, or frequency dividers. Taking two carriers 2CC in the uplink carrier aggregation support band and 2CC between the downlink carrier aggregation support bands as an example, the radio frequency architecture in the prior art generally adopts three antennas. One antenna is a main set antenna and is used for transceiving signals such as B2+66 frequency band signals or B5 frequency band signals, one antenna is a diversity antenna and is used for receiving signals such as B2+66 frequency band signals and B5 frequency band signals, the other antenna is a transmitting antenna and is used for transmitting signals of the B2 frequency band or the B66 frequency band signals, and therefore uplink carrier aggregation of B2+66/2+5/66+5 and downlink carrier aggregation of B2+66/2+5/66+5 are achieved. However, the rf architecture design uses more antennas, has higher cost, and occupies a larger rf space.
Disclosure of Invention
The embodiment of the application provides a radio frequency structure and a mobile terminal, which can optimize radio frequency space and reduce cost.
The embodiment of the application provides a radio frequency structure, which comprises a radio frequency transceiver, a first passage, a second passage, a first antenna and a second antenna;
the first path is connected between the radio frequency transceiver and the first antenna and used for transmitting a first frequency band signal or a second frequency band signal; receiving the first frequency band signal, the second frequency band signal and a third frequency band signal;
the second path is connected between the radio frequency transceiver and the second antenna, and is used for transceiving the first frequency band signal and the second frequency band signal or transceiving the third frequency band signal.
In some embodiments of the present application, the first path includes a frequency divider, a receive sub-path, a first transmit sub-path;
the frequency divider is connected with the first antenna, and the receiving sub-path is connected between the frequency divider and the radio frequency transceiver and used for receiving the third frequency band signal;
the first transceiver sub-path is connected between the frequency divider and the radio frequency transceiver and used for transmitting the first frequency band signal or the second frequency band signal; and receiving the first frequency band signal and the second frequency band signal.
In some embodiments of the present application, the first transceiver sub-path includes a first quadplexer and a power amplification module, and the radio frequency transceiver includes a first receiving end, a second receiving end, and a first transmitting end;
the first receiving end is connected with the frequency divider through the first quadplexer and used for receiving the first frequency band signal; the second receiving end is connected with the frequency divider through the first quadplexer and is used for receiving the second frequency band signal;
the first transmitting end is connected with the first quadruplex through the power amplification module and used for transmitting the first frequency band signal or the second frequency band signal.
In some embodiments of the present application, the power amplification module includes a first amplifier, a second amplifier, and a first switch;
the movable end of the first change-over switch is connected with the first transmitting end, the first immovable end of the first change-over switch is connected with the first quadruplex through the first amplifier, and the second immovable end of the first change-over switch is connected with the first quadruplex through the second amplifier.
In some embodiments of the present application, the receive sub-path includes a filter, and the radio frequency transceiver includes a third receive end;
the filter is connected between the frequency divider and the third receiving end.
In some embodiments of the present application, the second path comprises a second switch, a multi-mode multi-frequency amplifier, a second transceiver sub-path, and a third transceiver sub-path;
the movable end of the second switch is connected with the second antenna, the first stationary end of the second switch is connected with the radio frequency transceiver through the second transceiver sub-path, the second stationary end of the second switch is connected with the radio frequency transceiver through the second transceiver sub-path, and the multi-mode multi-frequency amplifier is respectively connected with the second transceiver sub-path, the third transceiver sub-path, and the radio frequency transceiver.
In some embodiments of the present application, the second transceiver sub-path includes a duplexer, and the radio frequency transceiver includes a fourth receiving end and a second transmitting end;
the multi-mode multi-frequency amplifier is connected with the second transmitting end, and the duplexer is respectively connected with the first fixed end of the second switch, the multi-mode multi-frequency amplifier and the fourth receiving end and used for receiving and transmitting the third frequency band signal.
In some embodiments of the present application, the third transceiver sub-path includes a second quadplexer, and the radio frequency transceiver includes a fifth receiving end, a sixth receiving end, and a third transmitting end;
the multi-mode multi-frequency amplifier is connected with the third transmitting end, and the second quadplexer is respectively connected with the multi-mode multi-frequency amplifier, the fifth receiving end and the sixth receiving end and is used for receiving and transmitting the first frequency band signal and the second frequency band signal.
In some embodiments of the present application, the first band signal and the second band signal are intermediate band signals, the first band signal is a B2 band signal, and the second band signal is a B66 band signal; the third frequency band signal is a low frequency band signal, and the third frequency band signal is a B5 frequency band signal.
Correspondingly, the embodiment of the application also provides a mobile terminal which comprises the radio frequency structure.
The radio frequency structure and the mobile terminal provided by the application enable the first channel to be connected between the radio frequency transceiver and the first antenna and used for transmitting the first frequency band signal or the second frequency band signal and receiving the first frequency band signal, the second frequency band signal and the third frequency band signal, enable the second channel to be connected between the radio frequency transceiver and the second antenna and used for receiving and transmitting the first frequency band signal and the second frequency band signal or receiving and transmitting the third frequency band signal, and reduce the number of antennas, optimize a radio frequency space and reduce the cost of the radio frequency structure on the basis of realizing uplink carrier aggregation and downlink carrier aggregation.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a radio frequency structure provided in an embodiment of the present application;
fig. 2 is another schematic structural diagram of a radio frequency structure according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application.
Detailed Description
Specific structural and functional details disclosed herein are merely representative and are provided for purposes of describing example embodiments of the present application. This application may, however, be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, it is to be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "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 terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
To meet the requirement of peak rate per user and system capacity increase, the most direct current method is to increase the transmission bandwidth of the system. Therefore, the LTE-Advanced system introduces a technology of increasing transmission bandwidth, that is, CA (carrier aggregation). Carrier aggregation has several categories: in-band continuous carriers, in-band non-continuous carriers, inter-band continuous carriers, and inter-band non-continuous carriers. The carrier aggregation is divided into 2CC, 3CC, 4CC and the like according to the number of carrier aggregation, and the carrier aggregation is divided into uplink carrier aggregation and downlink carrier aggregation. Taking LTE DL CAT16 level as an example, the downlink peak number can reach 1Gbps, the peak rate of CAT18 is 1.2Gbps, and the peak rate of CAT19 is 1.6 Gbps.
Most users may only care about the download rate, and the higher the download rate is, the better the user's intuitive experience is. The uplink rate, that is, the rate at which a user uploads data, is rarely concerned, and the faster the uplink rate is, the larger the data volume shared by the user terminal is, and the larger the data volume provided for other users to download, so the architecture design of uplink carrier aggregation also needs to be optimized.
The present application is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1, the present embodiment provides a radio frequency structure, which includes a radio frequency transceiver 1, a first path 2, a second path 3, a first antenna 4, and a second antenna 5. The first path 2 is connected between the radio frequency transceiver 1 and the first antenna 4, and the second path 3 is connected between the radio frequency transceiver 1 and the second antenna 5.
The second antenna 5 may be a main set antenna, and is configured to receive and transmit the first frequency band signal and the second frequency band signal, or receive and transmit the third frequency band signal. When transmitting signals, the radio frequency transceiver 1 may output first frequency band signals and second frequency band signals, which are transmitted by the second antenna 5 through the second path 3, or the radio frequency transceiver 1 may output third frequency band signals, which are transmitted by the second antenna 5 through the second path 3. When receiving signals, the second antenna 5 may receive first band signals and second band signals, and the first band signals and the second band signals are transmitted to the radio frequency transceiver 1 through the second path 3, or the second antenna 5 may receive third band signals, and the third band signals are transmitted to the radio frequency transceiver 1 through the second path 3.
The first antenna 4 may be used as a diversity antenna and a transmitting antenna, and is configured to transmit a first frequency band signal or a second frequency band signal and receive the first frequency band signal, the second frequency band signal and a third frequency band signal. When transmitting a signal, the radio frequency transceiver 1 may output a first frequency band signal or a second frequency band signal, and the first frequency band signal or the second frequency band signal is transmitted by the first antenna 4 through the first path 2. When receiving signals, the first antenna 4 may receive a first frequency band signal, a second frequency band signal, and a third frequency band signal, and the first frequency band signal, the second frequency band signal, and the third frequency band signal are transmitted to the radio frequency transceiver 1 through the first path 2.
The first band signal and the second band signal may be middle band signals, and the third band signal may be low band signals, for example, the first band signal is a B2 band signal, the second band signal is a B66 band signal, and the third band signal is a B5 band signal, so that uplink carrier aggregation of B2+66/2+5/66+5 and downlink carrier aggregation of B2+66/2+5/66+5 are realized through the two antennas, that is, the first antenna 4 and the second antenna 5, and the number of antennas is reduced, the radio frequency space is optimized, and the cost of the radio frequency structure is reduced.
Specifically, as shown in fig. 2, the first path 2 includes a frequency divider 21, a receiving sub-path 22, and a first transceiving sub-path 23. The frequency divider 21 is connected to the first antenna 4, the receive sub-path 22 is connected between the frequency divider 21 and the radio frequency transceiver 1, and the first transceiver sub-path 23 is connected between the frequency divider 21 and the radio frequency transceiver 1.
The frequency divider 21 may, among other things, enable frequency division of the low frequency signal and the intermediate frequency signal. When receiving signals, the first antenna 4 may receive a first frequency band signal, a second frequency band signal, and a third frequency band signal, and because the first frequency band signal and the second frequency band signal are middle frequency band signals and the third frequency band signal is a low frequency band signal, frequency division of the third frequency band signal and the first frequency band signal and the second frequency band signal may be achieved, so that the third frequency band signal is transmitted to the radio frequency transceiver 1 through the receiving sub-channel 22, and the first frequency band signal and the second frequency band signal are transmitted to the radio frequency transceiver 1 through the first transceiving sub-channel 23.
When transmitting the signal, the radio frequency transceiver 1 outputs a first frequency band signal or a second frequency band signal, and the first frequency band signal or the second frequency band signal is transmitted by the first antenna 4 through the first transceiver sub-path 23 and the frequency divider 21. It should be noted that the receiving sub-path 22 only receives the third band signal, and does not transmit the third band signal.
Further, as shown in fig. 2, the receiving sub-path 22 includes a filter 24, and the radio frequency transceiver 1 includes a third receiving terminal DRX 3; the filter 24 is connected between the frequency divider 21 and the third receiving terminal DRX 3.
The filter 24 is a receiving filter, and filters the third frequency band signal when the first antenna 4 receives the third frequency band signal, and transmits the filtered third frequency band signal to the radio frequency transceiver 1 through the third receiving terminal DRX 3.
Further, as shown in fig. 2, the first transceiver sub-path 23 includes a first quadplexer 25 and a power amplification module 26, and the radio frequency transceiver 1 includes a first receiving terminal DRX1, a second receiving terminal DRX2 and a first transmitting terminal TX 1. The first receiving terminal DRX1 is connected to the frequency divider 21 through the first quadplexer 25, the second receiving terminal DRX2 is connected to the frequency divider 21 through the first quadplexer 25, and the first transmitting terminal TX1 is connected to the first quadplexer 25 through the power amplification module 26.
When the first antenna 4 receives the first frequency band signal and the second frequency band signal, the first frequency band signal is transmitted to the rf transceiver 1 through the first duplexer 25 and the first receiving terminal DRX1, and the second frequency band signal is transmitted to the rf transceiver 1 through the first duplexer and the second receiving terminal DRX 2. The first transmitting terminal TX1 supports a first frequency band signal and a second frequency band signal, the radio frequency transceiver 1 can transmit the first frequency band signal or the second frequency band signal through the first transmitting terminal TX1, and the first frequency band signal or the second frequency band signal is power-amplified by the power amplification module 26 and then transmitted out through the first antenna 4 via the first duplexer 25 and the frequency divider 21.
The first duplexer 25 may receive and transmit the first frequency band signal or the second frequency band signal when uplink carrier aggregation is required, and may serve as a receiving filter for the first frequency band signal and the second frequency band signal when uplink carrier aggregation is not required. In the prior art, because the diversity antenna and the transmitting antenna are designed separately, a filter of a first frequency band signal and a filter of a second frequency band signal need to be additionally designed in a path corresponding to the diversity antenna, the radio frequency space is increased, and the cost is increased. In the embodiment of the application, the first quadruplex 25 has both the transmitting function and the receiving function, so that the receiving filter can be used without additionally arranging a filter for the first frequency band signal and a filter for the second frequency band signal, the radio frequency space is further reduced, and the cost is reduced.
Specifically, as shown in fig. 2, the power amplification module 26 includes a first amplifier 27, a second amplifier 28, and a first switch 29; the moving terminal of the first switch 29 is connected to the first transmitting terminal TX1, the first fixed terminal of the first switch 29 is connected to the first quadplexer 25 through the first amplifier 27, and the second fixed terminal of the first switch 29 is connected to the first quadplexer 25 through the second amplifier 28.
The moving end of the first switch 29 can be switched to the first stationary end or the second stationary end to switch and transmit the first frequency band signal or the second frequency band signal, and the first switch 29 can be a single-pole double-throw switch. When the radio frequency transceiver 1 outputs the first frequency band signal through the first transmitting terminal TX1, the moving terminal of the first switch 29 is switched to the first stationary terminal, and the first frequency band signal is transmitted to the first amplifier 27, so that the first amplifier 27 performs power amplification on the first frequency band signal, and the amplified first frequency band signal is transmitted from the first antenna 24 through the first quadplexer 25 and the frequency divider 21. When the radio frequency transceiver 1 outputs the second frequency band signal through the first transmitting terminal TX1, the moving terminal of the first switch 29 is switched to the second stationary terminal, and the second frequency band signal is transmitted to the second amplifier 28, so that the second amplifier 28 performs power amplification on the second frequency band signal, and the amplified second frequency band signal is transmitted out through the first antenna 24 via the first quadrupler 25 and the frequency divider 21.
Further, as shown in fig. 2, the second path 3 includes a second switch 31, a multi-mode multi-band amplifier 32, a second transceiver sub-path 33, and a third transceiver sub-path 34. The moving end of the second switch 31 is connected to the second antenna 5, the first moving end of the second switch 31 is connected to the rf transceiver 1 through the second transceiver sub-path 33, the second moving end of the second switch 31 is connected to the rf transceiver 1 through the second transceiver sub-path 33, and the multi-mode multi-band amplifier 32 is connected to the second transceiver sub-path 33, the third transceiver sub-path 34, and the rf transceiver 1, respectively.
The moving end of the second switch 31 can be switched to the first moving end or the second moving end to switch to receive and transmit the middle-band signal (i.e., the first-band signal and the second-band signal) or the low-band signal (i.e., the third-band signal), and the second switch 31 can be a single-pole double-throw switch. The multi-mode multi-band amplifier 32 supports multiple bands (including low frequency, intermediate frequency, and high frequency) of signals, and can amplify the power of the first band signal, the second band signal, and the third band signal.
When receiving and transmitting the first frequency band signal and the second frequency band signal, the second switch 31 is switched to the third transceiver sub-path 34, and when receiving the signal, the second antenna 5 transmits the received first frequency band signal and the received second frequency band signal to the radio frequency transceiver 1 through the third transceiver sub-path 34; when transmitting signals, the radio frequency transceiver 1 transmits the first frequency band signals and the second frequency band signals to the multi-mode multi-frequency amplifier 32, the multi-mode multi-frequency amplifier 32 performs power amplification on the first frequency band signals and the second frequency band signals, and the amplified first frequency band signals and the amplified second frequency band signals are transmitted out by the second antenna 5 through the third transceiver sub-path 34.
When receiving and transmitting the third frequency band signal, the second switch 31 is switched to the second transceiver sub-path 33, and when receiving the signal, the second antenna 5 transmits the received third frequency band signal to the radio frequency transceiver 1 through the second transceiver sub-path 33; when transmitting the signal, the radio frequency transceiver 1 transmits the third frequency band signal to the multi-mode multi-frequency amplifier 32, and the multi-mode multi-frequency amplifier 32 performs power amplification on the third frequency band signal, and transmits the amplified third frequency band signal to the second antenna 5 through the second transceiver sub-path 33.
Specifically, as shown in fig. 2, the second transceiver sub-path 33 includes a duplexer 35, and the radio frequency transceiver 1 includes a fourth receiving end PRX3 and a second transmitting end TX 3; the multi-mode multi-band amplifier 32 is connected to the second transmitting terminal TX3, and the duplexer 35 is respectively connected to the first stationary terminal of the second switch 31, the multi-mode multi-band amplifier 32, and the fourth receiving terminal PRX 3.
When the radio frequency transceiver 1 transmits the third frequency band signal through the second transmitting terminal TX3, the third frequency band signal is transmitted from the second antenna 5 through the duplexer 35; when the second antenna 5 receives the third frequency band signal, the third frequency band signal is transmitted to the radio frequency transceiver 1 through the duplexer 35 and the fourth receiving end PRX 3.
Specifically, as shown in fig. 2, the third transceiver sub-path 34 includes a second quadplexer 36, and the radio frequency transceiver 1 includes a fifth receiving end PRX1, a sixth receiving end PRX2, and a third transmitting end TX 2; the multi-mode multi-band amplifier 32 is connected to the third transmitting terminal TX2, and the second quadplexer 36 is connected to the multi-mode multi-band amplifier 32, the fifth receiving terminal PRX1, and the sixth receiving terminal PRX2, respectively.
The third transmitting terminal TX2 supports the first frequency band signal and the second frequency band signal, and the radio frequency transceiver 1 can transmit the first frequency band signal and the second frequency band signal through the third transmitting terminal TX 2. When the radio frequency transceiver 1 transmits the first frequency band signal and the second frequency band signal through the third transmitting terminal TX2, the first frequency band signal and the second frequency band signal are amplified by the multi-mode multi-band amplifier 32, transmitted to the second duplexer 36, and transmitted through the second antenna 5; when the second antenna 5 receives the first frequency band signal and the second frequency band signal, the first frequency band signal is transmitted to the radio frequency transceiver 1 through the second duplexer 36 and the fifth receiving terminal PRX1, and the second frequency band signal is transmitted to the radio frequency transceiver 1 through the second duplexer 36 and the sixth receiving terminal PRX 2.
The radio frequency structure provided by the application enables the first channel to be connected between the radio frequency transceiver and the first antenna and used for transmitting the first frequency band signal or the second frequency band signal and receiving the first frequency band signal, the second frequency band signal and the third frequency band signal, and enables the second channel to be connected between the radio frequency transceiver and the second antenna and used for receiving and transmitting the first frequency band signal and the second frequency band signal or receiving and transmitting the third frequency band signal, and on the basis of realizing uplink carrier aggregation and downlink carrier aggregation, the number of antennas is reduced, the radio frequency space is optimized, and the cost of the radio frequency structure is reduced.
An embodiment of the present application further provides a mobile terminal, as shown in fig. 3, where the mobile terminal 30 includes the radio frequency structure in the foregoing embodiment. In particular, the radio frequency structure comprises a radio frequency transceiver 1, a first path 2, a second path 3, a first antenna 4 and a second antenna 5. The first path 2 is connected between the radio frequency transceiver 1 and the first antenna 4, and is configured to transmit a first frequency band signal or a second frequency band signal and receive the first frequency band signal, the second frequency band signal and a third frequency band signal; the second path 3 is connected between the radio frequency transceiver 1 and the second antenna 5, and is configured to receive and transmit the first frequency band signal and the second frequency band signal, or receive and transmit the third frequency band signal.
The mobile terminal further comprises a shell, an accommodating space is formed in the shell, and the radio frequency structure is arranged in the accommodating space and is close to the top area or the bottom area of the mobile terminal.
In some embodiments of the present application, the first path includes a frequency divider, a receive sub-path, a first transmit sub-path;
the frequency divider is connected with the first antenna, and the receiving sub-path is connected between the frequency divider and the radio frequency transceiver and used for receiving the third frequency band signal;
the first transceiver sub-path is connected between the frequency divider and the radio frequency transceiver and used for transmitting the first frequency band signal or the second frequency band signal; and receiving the first frequency band signal and the second frequency band signal.
In some embodiments of the present application, the first transceiver sub-path includes a first quadplexer and a power amplification module, and the radio frequency transceiver includes a first receiving end, a second receiving end, and a first transmitting end;
the first receiving end is connected with the frequency divider through the first quadplexer and used for receiving the first frequency band signal; the second receiving end is connected with the frequency divider through the first quadplexer and is used for receiving the second frequency band signal;
the first transmitting end is connected with the first quadruplex through the power amplification module and used for transmitting the first frequency band signal or the second frequency band signal.
In some embodiments of the present application, the power amplification module includes a first amplifier, a second amplifier, and a first switch;
the movable end of the first change-over switch is connected with the first transmitting end, the first immovable end of the first change-over switch is connected with the first quadruplex through the first amplifier, and the second immovable end of the first change-over switch is connected with the first quadruplex through the second amplifier.
In some embodiments of the present application, the receive sub-path includes a filter, and the radio frequency transceiver includes a third receive end;
the filter is connected between the frequency divider and the third receiving end.
In some embodiments of the present application, the second path comprises a second switch, a multi-mode multi-frequency amplifier, a second transceiver sub-path, and a third transceiver sub-path;
the movable end of the second switch is connected with the second antenna, the first stationary end of the second switch is connected with the radio frequency transceiver through the second transceiver sub-path, the second stationary end of the second switch is connected with the radio frequency transceiver through the second transceiver sub-path, and the multi-mode multi-frequency amplifier is respectively connected with the second transceiver sub-path, the third transceiver sub-path, and the radio frequency transceiver.
In some embodiments of the present application, the second transceiver sub-path includes a duplexer, and the radio frequency transceiver includes a fourth receiving end and a second transmitting end;
the multi-mode multi-frequency amplifier is connected with the second transmitting end, and the duplexer is respectively connected with the first fixed end of the second switch, the multi-mode multi-frequency amplifier and the fourth receiving end and used for receiving and transmitting the third frequency band signal.
In some embodiments of the present application, the third transceiver sub-path includes a second quadplexer, and the radio frequency transceiver includes a fifth receiving end, a sixth receiving end, and a third transmitting end;
the multi-mode multi-frequency amplifier is connected with the third transmitting end, and the second quadplexer is respectively connected with the multi-mode multi-frequency amplifier, the fifth receiving end and the sixth receiving end and is used for receiving and transmitting the first frequency band signal and the second frequency band signal.
In some embodiments of the present application, the first band signal and the second band signal are intermediate band signals, the first band signal is a B2 band signal, and the second band signal is a B66 band signal; the third frequency band signal is a low frequency band signal, and the third frequency band signal is a B5 frequency band signal.
The mobile terminal provided by the application enables the first channel to be connected between the radio frequency transceiver and the first antenna and used for transmitting the first frequency band signal or the second frequency band signal and receiving the first frequency band signal, the second frequency band signal and the third frequency band signal, enables the second channel to be connected between the radio frequency transceiver and the second antenna and used for receiving and transmitting the first frequency band signal and the second frequency band signal or receiving and transmitting the third frequency band signal, and reduces the number of antennas, optimizes a radio frequency space and reduces the cost of a radio frequency structure on the basis of realizing uplink carrier aggregation and downlink carrier aggregation.
In summary, although the present application has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present application, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, so that the scope of the present application shall be determined by the appended claims.
Claims (10)
1. A radio frequency structure, comprising a radio frequency transceiver, a first path, a second path, a first antenna and a second antenna;
the first path is connected between the radio frequency transceiver and the first antenna and used for transmitting a first frequency band signal or a second frequency band signal; receiving the first frequency band signal, the second frequency band signal and a third frequency band signal;
the second path is connected between the radio frequency transceiver and the second antenna, and is used for transceiving the first frequency band signal and the second frequency band signal or transceiving the third frequency band signal.
2. The radio frequency fabric of claim 1, wherein the first path comprises a frequency divider, a receive sub-path, a first transmit sub-path;
the frequency divider is connected with the first antenna, and the receiving sub-path is connected between the frequency divider and the radio frequency transceiver and used for receiving the third frequency band signal;
the first transceiver sub-path is connected between the frequency divider and the radio frequency transceiver and used for transmitting the first frequency band signal or the second frequency band signal; and receiving the first frequency band signal and the second frequency band signal.
3. The radio frequency structure of claim 2, wherein the first transceiver sub-path comprises a first quadplexer and a power amplification module, and the radio frequency transceiver comprises a first receiving end, a second receiving end, and a first transmitting end;
the first receiving end is connected with the frequency divider through the first quadplexer and used for receiving the first frequency band signal; the second receiving end is connected with the frequency divider through the first quadplexer and is used for receiving the second frequency band signal;
the first transmitting end is connected with the first quadruplex through the power amplification module and used for transmitting the first frequency band signal or the second frequency band signal.
4. The radio frequency structure according to claim 3, wherein the power amplification module comprises a first amplifier, a second amplifier and a first switch;
the movable end of the first change-over switch is connected with the first transmitting end, the first immovable end of the first change-over switch is connected with the first quadruplex through the first amplifier, and the second immovable end of the first change-over switch is connected with the first quadruplex through the second amplifier.
5. The radio frequency structure of claim 2, wherein the receive sub-path includes a filter, and the radio frequency transceiver includes a third receive end;
the filter is connected between the frequency divider and the third receiving end.
6. The radio frequency fabric of claim 1, wherein the second path comprises a second switch, a multi-mode multi-band amplifier, a second transceiver sub-path, and a third transceiver sub-path;
the movable end of the second switch is connected with the second antenna, the first stationary end of the second switch is connected with the radio frequency transceiver through the second transceiver sub-path, the second stationary end of the second switch is connected with the radio frequency transceiver through the second transceiver sub-path, and the multi-mode multi-frequency amplifier is respectively connected with the second transceiver sub-path, the third transceiver sub-path, and the radio frequency transceiver.
7. The radio frequency fabric of claim 6, wherein the second transceiver sub-path includes a duplexer, and the radio frequency transceiver includes a fourth receiving end and a second transmitting end;
the multi-mode multi-frequency amplifier is connected with the second transmitting end, and the duplexer is respectively connected with the first fixed end of the second switch, the multi-mode multi-frequency amplifier and the fourth receiving end and used for receiving and transmitting the third frequency band signal.
8. The radio frequency structure of claim 6, wherein the third transceiver sub-path comprises a second quadplexer, and the radio frequency transceiver comprises a fifth receiving end, a sixth receiving end, and a third transmitting end;
the multi-mode multi-frequency amplifier is connected with the third transmitting end, and the second quadplexer is respectively connected with the multi-mode multi-frequency amplifier, the fifth receiving end and the sixth receiving end and is used for receiving and transmitting the first frequency band signal and the second frequency band signal.
9. The radio frequency structure of claim 1, wherein the first frequency band signal and the second frequency band signal are mid-band signals, the first frequency band signal is a B2 frequency band signal, and the second frequency band signal is a B66 frequency band signal; the third frequency band signal is a low frequency band signal, and the third frequency band signal is a B5 frequency band signal.
10. A mobile terminal characterized in that it comprises a radio frequency structure according to any of claims 1 to 9.
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| CN117595794A (en) * | 2024-01-19 | 2024-02-23 | 成都雷电微力科技股份有限公司 | Frequency division suppression structure based on 3D heterogeneous power amplifier chip |
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