CN113098555B - Radio frequency structure and electronic equipment - Google Patents
Radio frequency structure and electronic equipment Download PDFInfo
- Publication number
- CN113098555B CN113098555B CN202110319589.1A CN202110319589A CN113098555B CN 113098555 B CN113098555 B CN 113098555B CN 202110319589 A CN202110319589 A CN 202110319589A CN 113098555 B CN113098555 B CN 113098555B
- Authority
- CN
- China
- Prior art keywords
- switching module
- radio frequency
- antenna
- conducted
- switching
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—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
-
- 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
- H04B1/0067—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 one or more circuit blocks in common for different bands
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
The application discloses radio frequency structure and electronic equipment, this radio frequency structure includes: the antenna comprises N first radio frequency channels corresponding to a first working frequency band, N second radio frequency channels corresponding to a second working frequency band, N antennas and N switching modules; one antenna is connected with one switching module, one switching module is respectively connected with one first radio frequency channel and one second radio frequency channel, and the N switching modules are sequentially connected; when the N switching modules are switched among a plurality of conduction states, a first radio frequency channel is conducted with an antenna through one switching module; or at least one first radio frequency channel can be switched to be conducted with any one antenna through the N switching modules; or a second radio frequency channel is communicated with an antenna through a switching module; or at least one second radio frequency channel can be switched to be conducted with any one antenna through the N switching modules. The number of switches in the 5G module can be reduced, and therefore insertion loss is reduced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a radio frequency structure and an electronic device.
Background
With the great popularization of electronic devices such as mobile intelligent terminals, the demand of users on data traffic is increasing. From the fourth Generation mobile communication technology (the 4th Generation mobile communication technology, 4G) applied to multimedia + broadband, the rate is 100M-1 Gbps, to the fifth Generation mobile communication technology (5 th-Generation, 5G) New air interface (New Radio, NR) peak rate can reach 20Gbps, and the improvement of the rate requires 5G mandatory technology 4 x 4 Multiple Input Multiple Output (MIMO) antenna technology.
The current requirement for 5G electronic devices is that their operating frequency and bandwidth are higher and higher, which makes the device limit challenging, and the difficulty of output power reaching the specification is not a little increased, so it is a key technology to consider how to reduce the path loss (path loss) and reduce the complexity of the complex circuit as much as possible. Electronic equipment such as a mobile phone supports a plurality of NR frequency bands, and each frequency band uses an independent switch to perform switching of a Sounding Reference Signal (SRS), which causes a large number of radio frequency front-end devices and a large insertion loss of a channel. For example: at present, one receiving and transmitting path and one receiving path of an NR frequency band use a 3P3T switch element, and are correspondingly connected with two antennas to implement a way of receiving one antenna and receiving one antenna, which requires a large number of switches and a large number of antennas required to be laid out, resulting in a large insertion loss; in addition, a scheme that one transmitting-receiving path and one receiving path of one NR frequency band use one 3P3T element and antenna multiplexing is realized by a combiner is also provided, which reduces the number of antennas, but also has the problem that the number of devices to be arranged at the front end of the radio frequency is large, and the insertion loss of the combiner is high, thereby further introducing extra loss.
Disclosure of Invention
The embodiment of the application provides a radio frequency structure and electronic equipment, and aims to solve the problem that in the prior art, the insertion loss is large due to the fact that the number of switches in a 5G module is large.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a radio frequency structure, including:
the antenna comprises N first radio frequency channels corresponding to a first working frequency band, N second radio frequency channels corresponding to a second working frequency band, N antennas and N switching modules; one antenna is connected with one switching module, one switching module is respectively connected with one first radio frequency channel and one second radio frequency channel, the N switching modules are sequentially connected, and N is a positive integer greater than 1;
the N switching modules are switchable among a plurality of conducting states; when the N switching modules are in a first conduction state, a first radio frequency channel is conducted with an antenna through one switching module; when the N switching modules are in a second conduction state, at least one first radio frequency channel can be switched to be conducted with any one antenna through the N switching modules; when the N switching modules are in a third conduction state, a second radio frequency channel is conducted with an antenna through one switching module; and when the N switching modules are in a fourth conduction state, at least one second radio frequency channel can be switched to be conducted with any antenna through the N switching modules.
In a second aspect, an embodiment of the present application further provides an electronic device, which includes the radio frequency structure described above.
In the above scheme of the application, by setting N switching modules, one antenna is connected to one switching module, and one switching module is respectively connected to one first radio frequency channel and one second radio frequency channel, so that when the N switching modules are in a first conduction state, one first radio frequency channel is conducted with one antenna through one switching module; when the N switching modules are in a second conduction state, at least one first radio frequency channel can be switched to be conducted with any one antenna through the N switching modules; when the N switching modules are in a third conduction state, a second radio frequency channel is conducted with an antenna through one switching module; and when the N switching modules are in a fourth conduction state, at least one second radio frequency channel can be switched to be conducted with any one antenna through the N switching modules. Like this through the radio frequency access correspondence of different frequency channels connect a switching module to and the mode that a switching module connects an antenna, make can realize under the 5G NR scene 1T4R or the radio frequency structure of 2T4R function of a plurality of frequency channels, the quantity of switch reduces, thereby is favorable to reducing the insertion loss.
Drawings
FIG. 1 shows one of the schematic diagrams of the radio frequency architecture of an embodiment of the present application;
fig. 2 shows a second schematic diagram of the rf architecture according to the embodiment of the present application.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, an embodiment of the present application provides a radio frequency structure, including: the antenna comprises N first radio frequency paths 1 corresponding to a first working frequency band, N second radio frequency paths 2 corresponding to a second working frequency band, N antennas 3 and N switching modules 4.
Wherein, an antenna 3 connects a switching module 4, and a switching module 4 connects a first radio frequency route 1 and a second radio frequency route 2 respectively, and connect in order between N switching module 4, and N is the positive integer that is greater than 1.
Wherein the N switching modules 4 are switchable between a plurality of on states; when the N switching modules 4 are in the first conduction state, a first radio frequency channel 1 is conducted with an antenna 3 through one switching module 4; when the N switching modules 4 are in the second conduction state, at least one first radio frequency channel 1 is switchable to be conducted with any one antenna 3 through the N switching modules 4; when the N switching modules 4 are in the third conducting state, one second radio frequency channel 2 is conducted with one antenna 3 through one switching module 4; when the N switching modules 4 are in the fourth conducting state, at least one second rf path 2 is switchable to conduct with any one antenna 3 through the N switching modules 4.
In the embodiment of the present application, N is a positive integer greater than 1, and for convenience of explaining the working principle of the radio frequency structure in the embodiment of the present application, N is 4 as an example for explanation; it should be understood, of course, that the embodiments of the present application are not limited thereto.
As shown in fig. 1, the rf structure includes four first rf paths 1, four second rf paths 2, four antennas 3, and four switch modules 4, wherein the four first rf paths and the four second rf paths may also be connected to a transceiver 5, and the transceiver 5 is used for communicating with the antennas 3 through the rf paths in the rf structure to transmit and receive rf signals.
Since the four switching modules 4 are connected in sequence, as shown in fig. 1, in the case that the first rf path is the first transceiving path, the rf structure can implement the following functions: when the first transceiving channel is communicated with the antenna A1 through the switching module A, the radio frequency structure can transmit radio frequency signals through the antenna A1; when the first transceiving channel is switched to be communicated with the antenna B2 through the switching module A and the switching module B, the radio frequency structure can transmit radio frequency signals through the antenna B1; when the first transceiving channel is switched to be communicated with the antenna C1 through the switching module A, the switching module B and the switching module C, the radio frequency structure can transmit radio frequency signals through the antenna C1; when the first transceiving channel is switched to be conducted with the antenna D1 through the switching module A, the switching module B, the switching module C and the switching module D, the radio frequency structure can transmit radio frequency signals through the antenna D1; when the four first rf paths 1 are respectively connected to one antenna 3 through one switching module 4, the rf structure can also receive four rf signals through the antennas 3 connected to the four rf paths 1 in a one-to-one correspondence manner, i.e., the 1T4R (one-path transmission and four-path reception) function of the first operating frequency band in a 5G NR scenario can be realized.
Correspondingly, in the case that the first and second rf paths are the third transceiving paths, similar to the manner in which the first rf path implements the 1T4R function, the rf structure may also implement the 1T4R function of the second operating frequency band. Of course, under the condition that the first radio frequency path includes two transceiving paths and two receiving paths, the radio frequency structure can also realize the 2T4R (two-path transmission and four-path reception) function of the first operating frequency band and the 2T4R function of the second operating frequency band.
In the above scheme of the present application, by setting N switching modules 4, and connecting one antenna 3 to one switching module 4, one switching module 4 is respectively connected to one first radio frequency path 1 and one second radio frequency path 2, so that when the N switching modules 4 are in a first conduction state, one first radio frequency path 1 is conducted with one antenna 3 through one switching module 4; when the N switching modules 4 are in the second conduction state, at least one first radio frequency channel 1 is switchable to be conducted with any one antenna 3 through the N switching modules 4; when the N switching modules 4 are in the third conducting state, one second radio frequency channel 2 is conducted with one antenna 3 through one switching module 4; when the N switching modules 4 are in the fourth conducting state, at least one second rf path 2 is switchable to conduct with any one of the antennas 3 through the N switching modules 4. Like this through the radio frequency access correspondence of different frequency channels connect a switching module to and the mode that an antenna was connected to a switching module for in can realizing the radio frequency structure of 1T4R or 2T4R function of a plurality of frequency channels under the 5G NR scene, the quantity of switch reduces, thereby is favorable to reducing the insertion loss.
Optionally, in a case where N is 4, the N first radio frequency paths 1 include: a first transceiving path, a second transceiving path, a first receiving path and a second receiving path; the N second radio frequency paths 2 include: a third transceiving path, a fourth transceiving path, a third receiving path, and a fourth receiving path.
The first transceiving path and the third transceiving path are connected with a first switching module A, and the first switching module A is connected with a first antenna A1; the first receiving path and the third receiving path are connected with a second switching module B, and the second switching module B is connected with a second antenna B1; the second transceiving path and the fourth transceiving path are connected with a third switching module C, and the third switching module C is connected with a third antenna C1; the second receiving path and the fourth receiving path are connected with a fourth switching module D, and the fourth switching module D is connected with a fourth antenna D1.
The first switching module A, the second switching module B, the third switching module C and the fourth switching module D are sequentially connected.
The radio frequency structure in the embodiment of the application can realize both a 1T4R function and a 2T4R function. Specifically, similar to the above embodiment, in the first transceiving path, the transmission of the radio frequency signal polled by using the first antenna A1, the second antenna B1, the third antenna C1 and the fourth antenna D1 is realized through switching the conduction states of the first switching module a, the second switching module B, the third switching module C and the fourth switching module D, and the first transceiving path may also be conducted with the first antenna A1 through the first switching module a and receive the radio frequency signal through the first antenna A1, the first receiving path is conducted with the second antenna B1 through the second switching module B and receive the radio frequency signal through the second antenna B1, the second transceiving path is conducted with the third antenna C1 through the third switching module C and receive the radio frequency signal through the third antenna C1, and the second receiving path is conducted with the fourth antenna D1 through the fourth switching module D and receive the radio frequency signal through the fourth antenna D1, that is, that the function of R4 of the first working frequency band under the first working is realized, that the function of the second receiving path is no longer similar to the function of R4 under the first working frequency band under the first working condition, and the second frequency band under the working condition that is realized.
In addition, the first transceiving path can be conducted with the first antenna A1 through the first switching module a and perform transmission of radio frequency signals through the first antenna A1, and the second transceiving path can be conducted with the third antenna C1 through the third switching module C and perform transmission of radio frequency signals through the third antenna C1; the first transceiving path can be switched to be conducted with the second antenna B1 through the first switching module A and the second switching module B, and radio-frequency signals are transmitted through the second antenna B1, and the second transceiving path can be switched to be conducted with the fourth antenna D1 through the third switching module C and the fourth switching module D, and radio-frequency signals are transmitted through the fourth antenna D1, namely the first transceiving path and the second transceiving path can be switched through the conduction states of the first switching module A, the second switching module B, the third switching module C and the fourth switching module D, so that two paths of transmission of the radio-frequency signals are transmitted by polling of the first antenna A1 and the third antenna C1, or the second antenna B1 and the fourth antenna D1; and the first transceiving path can also be conducted with the first antenna A1 through the first switching module a, and receive radio frequency signals through the first antenna A1, the first receiving path is conducted with the second antenna B1 through the second switching module B, and receive radio frequency signals through the second antenna B1, the second transceiving path is conducted with the third antenna C1 through the third switching module C, and receive radio frequency signals through the third antenna C1, and the second receiving path is conducted with the fourth antenna D1 through the fourth switching module D, and receive radio frequency signals through the fourth antenna D1, that is, the 2T4R function under the first working frequency band is realized, and the implementation manner of the 2T4R function of the corresponding second frequency band is similar to that of the 2T4R function under the first working frequency band, which is not repeated herein.
Optionally, the first switching module a may include: a first end, a second end, a third end, and a fourth end.
The first end is connected to the first transceiving path, the second end is connected to the third transceiving path, the third end is connected to the first antenna A1, and the fourth end is connected to the second switching module B.
When the first switching module A is in a first state, the first end is conducted with the third end; when the first switching module A is in a second state, the first end and the fourth end are conducted; in a third state of the first switching module a, the second terminal and the third terminal are conducted; and in a fourth state of the first switching module A, the second end is conducted with the fourth end.
For example: when the first switching module A is switched among a plurality of conduction states, the first transceiving path or the third transceiving path can be conducted with the first antenna A1 through the first switching module A, and radio frequency signals are received or transmitted through the first antenna; or the first transceiving path or the third transceiving path can be conducted with the second switching module B through the first switching module a, and further, the conducting state of the second switching module B, the third switching module C and the fourth switching module D is switched, so that the first transceiving path or the third transceiving path can receive or transmit radio-frequency signals through the second antenna B1, the third antenna C1 and the fourth antenna D1 in a polling manner. Or, the first switching module a may also be conducted with the second switching module B, and further through the conducting state switching of the second switching module B, the third switching module C and the fourth switching module D, other radio frequency channels are provided to perform the receiving or transmitting of the radio frequency signal by the first antenna A1.
Optionally, the second switching module B includes: a first end, a second end, a third end, a fourth end and a fifth end.
The first end is connected with the first receiving path, the second end is connected with the third receiving path, the third end is connected with the second antenna B2, the fourth end is connected with the third switching module C, and the fifth end is connected with the first switching module A.
When the second switching module B is in the first state, the first terminal and the third terminal are conducted; when the second switching module B is in a second state, the second end is conducted with the third end; when the second switching module B is in the third state, the fifth terminal and the third terminal are conducted; and when the second switching module B is in a fourth state, the fifth end and the fourth end are conducted.
For example: when the second switching module B is switched among a plurality of conduction states, the first receiving path or the third receiving path may be conducted with the second antenna B1 through the second switching module B, and the radio frequency signal is received through the second antenna B1; or the first receiving path or the third receiving path can be conducted with the first switching module A through the second switching module B, so that the radio-frequency signals can be received through the first antenna A1; or the first receiving path or the third receiving path may be conducted with the third switching module C through the second switching module B, and further through the conducting state switching of the third switching module C and the fourth switching module D, the first receiving path or the third receiving path may receive the radio frequency signal through the third antenna C1 and the fourth antenna D1. Or, the second switching module B may also be conducted with the first switching module a, the third switching module C, and the fourth switching module D, and further, through the switching of the conduction states of the first switching module a, the third switching module C, and the fourth switching module D, the second antenna B1 provides other radio frequency channels to receive or transmit radio frequency signals.
In addition, according to the design requirement of the antenna operating mode, the second switching module B may further include a fifth state in which the first end and the fourth end are conducted, a sixth state in which the second end and the fourth end are conducted, a seventh state in which the first end and the fifth end are conducted, an eighth state in which the second end and the fifth end are conducted, and the like. For example, when an antenna fails, the first receiving path or the third receiving path may multiplex another antenna in a timeslot, and the embodiments of the present application are not limited thereto.
Optionally, the third switching module C includes: a first end, a second end, a third end, a fourth end and a fifth end.
The first end is connected with the second transceiving passage, the second end is connected with the fourth transceiving passage, the third end is connected with the third antenna C1, the fourth end is connected with the fourth switching module D, and the fifth end is connected with the second switching module B.
When the third switching module C is in the first state, the first terminal and the third terminal are conducted; when the third switching module C is in the second state, the second terminal is conducted with the third terminal; when the third switching module C is in the third state, the fifth terminal and the third terminal are conducted; and in a fourth state of the third switching module C, the fifth terminal is conducted with the fourth terminal.
For example: when the third switching module C is switched between a plurality of conducting states, the second transceiving path or the fourth transceiving path can be conducted with the third antenna C1 through the third switching module C, and the radio frequency signal is received or transmitted through the third antenna C1; or the second transceiving path or the fourth transceiving path can be conducted with the fourth switching module D through the third switching module C, so that the radio frequency signal can be received or transmitted through the fourth antenna D1; or, the second transceiving path or the fourth transceiving path may be conducted with the second switching module B through the third switching module C, and further, through switching of conduction states of the second switching module B and the first switching module a, the second transceiving path or the fourth transceiving path may receive or transmit the radio frequency signal through the second antenna B1 or the first antenna A1. Or, the third switching module C may also be conducted with the first switching module a, the second switching module B, and the fourth switching module D, and further, through the switching of the conduction states of the first switching module a, the second switching module B, and the fourth switching module D, the third antenna C1 provides other radio frequency channels to receive or transmit radio frequency signals.
In addition, according to the design requirement of the antenna operating mode, the third switching module C may further include a fifth state in which the first end and the fourth end are conducted, a sixth state in which the second end and the fourth end are conducted, a seventh state in which the first end and the fifth end are conducted, an eighth state in which the second end and the fifth end are conducted, and the like. For example, when the antenna fails, the second transceiving path or the fourth transceiving path may multiplex another antenna in the timeslot, and the like, which is not limited in this embodiment of the application.
Optionally, the fourth switching module D includes: a first end, a second end, a third end and a fourth end;
the first end is connected with the second receiving path, the second end is connected with the fourth receiving path, the third end is connected with the fourth antenna D1, and the fourth end is connected with the third switching module C.
When the fourth switching module D is in the first state, the first terminal and the third terminal are conducted; when the fourth switching module D is in the second state, the second terminal is conducted with the third terminal; and when the fourth switching module D is in a third state, the fourth end is conducted with the third end.
For example: when the fourth switching module D is switched among a plurality of conduction states, the second receiving path or the fourth receiving path may be conducted with the fourth antenna D1 through the fourth switching module D, and the radio frequency signal is received through the fourth antenna D1; or the second receiving path or the fourth receiving path may be conducted with the third switching module C through the fourth switching module D, so that the radio frequency signal may be received through the third antenna C1; or the second receiving path or the fourth receiving path may be conducted with the third switching module C, and further, through the switching of the conducting states of the third switching module C, the second switching module B, and the first switching module a, the second receiving path or the fourth receiving path may receive the radio frequency signal through the second antenna B1 or the first antenna A1. Or, the fourth switching module D may also be conducted with the first switching module a, the second switching module B, and the third switching module C, and further, through the switching of the conduction states of the first switching module a, the second switching module B, and the third switching module C, the fourth antenna D1 provides other radio frequency channels to receive or transmit radio frequency signals.
In addition, according to the design requirement of the antenna operating mode, the fourth switching module D may further include a fifth state in which the first end and the fourth end are conducted, a sixth state in which the second end and the fourth end are conducted, and the like. For example, when an antenna fails, the second receiving path or the fourth receiving path may multiplex another antenna in the time slot, and the embodiment of the present application is not limited thereto.
Optionally, the radio frequency structure may further include: and N third radio frequency paths corresponding to the third working frequency band. Wherein, a switch module 4 is respectively connected with a first radio frequency channel, a second radio frequency channel and a third radio frequency channel.
When the N switching modules 4 are in the fifth conducting state, a third radio frequency channel is conducted with one antenna 3 through one switching module 4; when the N switching modules 4 are in the sixth conducting state, at least one third rf path is switchable to conduct with any one of the antennas 3 through the N switching modules 4.
In the embodiment of the present application, the switching manner of the on-state of the radio frequency path corresponding to the third operating frequency band through the N switching modules 4 and the N antennas is similar to that of the first operating frequency band, and is not described herein again.
Optionally, when N is 4, the N third radio frequency paths include: a fifth transceiving path, a sixth transceiving path, a fifth receiving path and a sixth receiving path;
wherein the fifth transceiving path is connected with the first switching module a; the fifth receiving path is connected with the second switching module B; the sixth transceiving channel is connected with the third switching module C; the sixth receiving path is connected to the fourth switching module D.
In this embodiment, the third radio frequency path corresponding to the third operating frequency band may also implement a 1T4R or 2T4R function in a 5G NR scenario by using a similar switching manner as the first operating frequency band and the second operating frequency band, which is not described herein again.
Optionally, under the condition that the radio frequency structure further includes N third radio frequency paths corresponding to the third operating frequency band, a terminal may be added to each of the switch modules 4 to ensure that one third radio frequency path is connected to one switch module 4. In other words, under the condition that the radio frequency structure further includes N third radio frequency paths corresponding to the third operating frequency band, a suitable switch may be selected based on the above switching manner, which is not described herein again.
It should be noted that the working frequency bands that can be realized by the radio frequency structure in the embodiment of the present application are not limited to include only the first working frequency band, the second working frequency band, and the third working frequency band, and may also include more working frequency bands, and specifically, an appropriate switch may be selected as the switching module 4 according to the number of radio frequency paths in different working frequency bands, which is not limited in the embodiment of the present application.
Optionally, the 5G NR supports 1T4R and 2T4R functions of signals in multiple frequency bands (e.g. N41 band, N78 band, N79 band), in this embodiment, the first operating frequency band may be N41 band, that is, the corresponding frequency range is: 2515MHz to 2675MHz; the second operating frequency band may be an N78 frequency band, i.e. the corresponding frequency range is: 3400 MHz-3500 MHz; the third operating frequency band may be an N79 frequency band, that is, the corresponding frequency ranges are: 4800 MHz-4900 MHz.
The following describes the above radio frequency structure in conjunction with an application scenario:
as shown in fig. 2, the radio frequency structure can implement a 1T4R function in a 5G NR scenario under the condition that three frequency bands of N41, N78, and N79 work independently, and ensure a 1-channel transmission 4-channel reception function, or implement a 2T4R function in a 5G NR scenario and ensure a 2-channel transmission 4-channel reception function.
For the transmit path: for example, after the first channel of TX signal is amplified and filtered by the TRX module 1 (e.g., the N41 radio frequency TRX module 1, or the N78 radio frequency TRX module 1, or the N79 radio frequency TRX module 1) of its respective frequency band, it can be transmitted on the first antenna 21 through the first switching module (i.e., the switch DP 3T); or through the switching of the conduction states of the first switching module and the second switching module (i.e. the switch DP4T 1), the transmission can be performed on the second antenna 22; or through the switching of the conduction states of the second switching module and the third switching module (i.e., the switch DP4T 2), the signal can be transmitted on the third antenna 23; or after the third switching module and the fourth switching module (i.e., the switch SP 4T) are switched to the conducting state, the signal can be transmitted through the fourth antenna 24, so that the function of 1T4R can be realized. Of course, in the radio frequency architecture example of fig. 2, the function of 1T4R may also be implemented according to other combination manners of the conduction states of DP3T, DP4T1, DP4T2, and SP4T, and the embodiment of the present application is not limited to this.
If the second path of TX signal is amplified and filtered by the TRX module 2 in each frequency band, then is transmitted on the third antenna 23 through DP4T2, and then can be transmitted on the fourth antenna 4 through SP4T, so that the function of 1T2R can be realized. Or, the first path of TX signal may be transmitted on the first antenna 21 through DP3T after being amplified and filtered by the TRX module 1 in each frequency band, and may be transmitted on the second antenna 22 through DP4T1, so as to implement the function of 1T 2R. Of course, in the radio frequency architecture example of fig. 2, the function of 1T2R may also be implemented according to other combination manners of the conduction states of DP3T, DP4T1, DP4T2, and SP4T, and the embodiment of the present application is not limited to this.
Alternatively, the function of NR 1T4R under Dual connectivity (EN-DC) with 4G as a primary node and 5G as a secondary node may be implemented using a first signal transmission path (e.g., TRX module 1) in a Non-independent Networking (NSA) scenario; in the case of independent networking (SA), the first signal transmission path is switched between the first antenna 21 and the second antenna 22, and the second signal transmission path (for example, the TRX module 2) is switched between the third antenna 23 and the fourth antenna 24, so that the 2T4R function can be implemented.
For the receive path: because the 5G NR needs to support 4 simultaneous receptions, the received signal 1 enters the transceiver for subsequent processing through the radio frequency TRX module 1 (e.g., the N41 radio frequency TRX module 1) after being received by the first antenna 21 and passing through the DP 3T; after being received by the second antenna 22, the received signal 2 passes through the DP4T1 and then the radio frequency RX module 1 (for example, the N41 radio frequency RX module 1), and then is sent to the transceiver for subsequent processing; after being received by the third antenna 23, the received signal 3 passes through the DP4T2 and then the radio frequency TRX module 2 (for example, the N41 radio frequency TRX module 2), and then is sent to the transceiver for subsequent processing; after being received by the fourth antenna 24, the received signal 4 passes through the radio frequency RX module 2 (e.g., the N41 radio frequency RX module 2) after passing through SP4T, and then is sent to the transceiver for subsequent processing.
The radio frequency structure in this embodiment can allow the TRX transmitting module 1+ dp3t module of three frequency bands to approach the main transmitting antenna (i.e., the first antenna 21); a TRX transmitting module 2+ dp4t2 module with three frequency bands is close to the main transmitting antenna (i.e. a third antenna 23); an RX receiving module 1+ DP4T1 of three frequency bands is close to a diversity receiving antenna (namely a second antenna 22); the RX receiving module 2+ sp4t module of three frequency bands is close to the diversity receiving antenna (i.e. the fourth antenna 24), so that it is ensured that the transmission receiving path is shorter, fewer devices pass through, the insertion loss is reduced, and it is beneficial to improving the receiving sensitivity and the transmission index; and since the transmission insertion loss is reduced, the output power of the power amplifier can be reduced, thereby improving power consumption performance.
Compared with the scheme that six 3P3T and four three-combiner are combined to realize the antenna functions of the circuits 1T4R and 2T4R in the prior art, the antenna has the advantages that the characteristic that TDD NR and three NR frequency bands (N41, N78 and N79) work at different times is applied, the number of devices can be reduced under the condition that the functions of the 5G NR 1T4R and the 2T4R are normal, and the cost and the layout area are reduced; besides, the scheme can maintain the original functions of 1T4R and 2T4R, can also improve the element difference loss caused by elements, increases the layout flexibility, has better isolation and stray suppression of DP4T, DP3T and SP4T relative to 3P3T, reduces mutual interference and out-of-band stray, improves the problem that longer routing needs to be specially wound among modules, leads to increase path loss, further improves the difficulty of the design of a 5G NR circuit, and further improves the sensitivity, the emission index and the radio frequency power consumption.
Embodiments of the present application further provide an electronic device, which includes the radio frequency structure according to at least one of the above embodiments, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here.
The embodiments in the present specification are all described in a progressive manner, and each embodiment focuses on differences from other embodiments, and portions that are the same and similar between the embodiments may be referred to each other.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. Without further limitation, an element defined by the phrases "comprising one of \ 8230; \8230;" does not exclude the presence of additional like elements in a process, method, article, or terminal device that comprises the element.
While the foregoing is directed to the preferred embodiment of the present application, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the disclosure and, therefore, the scope of the disclosure is to be defined by the appended claims.
Claims (10)
1. A radio frequency structure, comprising:
the antenna comprises N first radio frequency channels corresponding to a first working frequency band, N second radio frequency channels corresponding to a second working frequency band, N antennas and N switching modules; one antenna is connected with one switching module, one switching module is respectively connected with one first radio frequency channel and one second radio frequency channel, the N switching modules are sequentially connected, and N is a positive integer greater than 1;
the N switching modules are switchable among a plurality of conducting states; when the N switching modules are in a first conduction state, a first radio frequency channel is conducted with an antenna through one switching module; when the N switching modules are in a second conduction state, at least one first radio frequency channel can be switched to be conducted with any antenna through the N switching modules; when the N switching modules are in a third conduction state, a second radio frequency channel is conducted with an antenna through one switching module; and when the N switching modules are in a fourth conduction state, at least one second radio frequency channel can be switched to be conducted with any antenna through the N switching modules.
2. The radio frequency structure of claim 1, wherein the N first radio frequency paths comprise: a first transceiving path, a second transceiving path, a first receiving path and a second receiving path; the N second radio frequency paths include: a third transceiving path, a fourth transceiving path, a third receiving path and a fourth receiving path;
the first transceiving path and the third transceiving path are connected with a first switching module, and the first switching module is connected with a first antenna; the first receiving path and the third receiving path are connected with a second switching module, and the second switching module is connected with a second antenna; the second transceiving path and the fourth transceiving path are connected with a third switching module, and the third switching module is connected with a third antenna; the second receiving channel and the fourth receiving channel are connected with a fourth switching module, and the fourth switching module is connected with a fourth antenna;
the first switching module, the second switching module, the third switching module and the fourth switching module are connected in sequence.
3. The radio frequency structure of claim 2, wherein the first switching module comprises: a first end, a second end, a third end and a fourth end;
the first end is connected with the first transceiving passage, the second end is connected with the third transceiving passage, the third end is connected with the first antenna, and the fourth end is connected with the second switching module;
when the first switching module is in a first state, the first end is conducted with the third end; when the first switching module is in a second state, the first end and the fourth end are conducted; when the first switching module is in a third state, the second end is conducted with the third end; and when the first switching module is in a fourth state, the second end is communicated with the fourth end.
4. A radio frequency structure according to claim 2, characterized in that said second switching module comprises: a first end, a second end, a third end, a fourth end and a fifth end;
the first end is connected with the first receiving path, the second end is connected with the third receiving path, the third end is connected with the second antenna, the fourth end is connected with the third switching module, and the fifth end is connected with the first switching module;
when the second switching module is in a first state, the first end is conducted with the third end; when the second switching module is in a second state, the second end is conducted with the third end; when the second switching module is in a third state, the fifth end is conducted with the third end; and when the second switching module is in a fourth state, the fifth end is communicated with the fourth end.
5. The radio frequency structure according to claim 2, wherein the third switching module comprises: a first end, a second end, a third end, a fourth end and a fifth end;
the first end is connected with the second transceiving path, the second end is connected with the fourth transceiving path, the third end is connected with the third antenna, the fourth end is connected with the fourth switching module, and the fifth end is connected with the second switching module;
when the third switching module is in a first state, the first end is conducted with the third end; when the third switching module is in a second state, the second end is conducted with the third end; when the third switching module is in a third state, the fifth terminal is conducted with the third terminal; and when the third switching module is in a fourth state, the fifth end and the fourth end are conducted.
6. The radio frequency structure according to claim 2, wherein the fourth switching module comprises: a first end, a second end, a third end and a fourth end;
the first end is connected with the second receiving path, the second end is connected with the fourth receiving path, the third end is connected with the fourth antenna, and the fourth end is connected with the third switching module;
when the fourth switching module is in a first state, the first end is conducted with the third end; when the fourth switching module is in a second state, the second end is conducted with the third end; and when the fourth switching module is in a third state, the fourth end is conducted with the third end.
7. The radio frequency structure of claim 1, further comprising:
n third radio frequency paths corresponding to a third working frequency band; the switching module is respectively connected with a first radio frequency channel, a second radio frequency channel and a third radio frequency channel;
when the N switching modules are in a fifth conduction state, a third radio frequency channel is conducted with an antenna through one switching module; and when the N switching modules are in a sixth conduction state, at least one third radio frequency channel can be switched to be conducted with any antenna through the N switching modules.
8. The radio frequency structure according to claim 7, wherein the third operating band corresponds to a frequency range of: 4800 MHz-4900 MHz.
9. A radio frequency structure according to claim 1 or 8, characterized in that the first operating frequency band corresponds to a frequency range of: 2515MHz to 2675MHz; the frequency range corresponding to the second working frequency band is as follows: 3400 MHz-3500 MHz.
10. An electronic device comprising a radio frequency structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110319589.1A CN113098555B (en) | 2021-03-25 | 2021-03-25 | Radio frequency structure and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110319589.1A CN113098555B (en) | 2021-03-25 | 2021-03-25 | Radio frequency structure and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113098555A CN113098555A (en) | 2021-07-09 |
| CN113098555B true CN113098555B (en) | 2022-10-18 |
Family
ID=76669580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110319589.1A Active CN113098555B (en) | 2021-03-25 | 2021-03-25 | Radio frequency structure and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113098555B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861734A (en) * | 2019-03-28 | 2019-06-07 | Oppo广东移动通信有限公司 | Radio frequency system, antenna switching control method, relevant device and storage medium |
| CN112436845A (en) * | 2020-12-02 | 2021-03-02 | Oppo广东移动通信有限公司 | Radio frequency L-PA Mid device, radio frequency transceiving system and communication equipment |
| CN112448734A (en) * | 2020-10-14 | 2021-03-05 | 深圳市锐尔觅移动通信有限公司 | Radio frequency module, terminal equipment and signal transmitting method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004304402A (en) * | 2003-03-31 | 2004-10-28 | Tdk Corp | High frequency switch module for multiband |
| CN101763496B (en) * | 2008-12-24 | 2013-12-18 | 国民技术股份有限公司 | Radio-frequency card reader for mobile communication terminal |
| US10505700B1 (en) * | 2018-07-12 | 2019-12-10 | T-Mobile Usa, Inc. | Reducing intermodulation distortion for intra-band dual connectivity |
| CN110518931A (en) * | 2019-07-25 | 2019-11-29 | 维沃移动通信有限公司 | A kind of switching molding group, radio-frequency unit and terminal device |
| CN110545112B (en) * | 2019-08-27 | 2021-11-19 | 维沃移动通信有限公司 | Antenna switching circuit and terminal |
| CN111342860A (en) * | 2019-12-25 | 2020-06-26 | 中科威发半导体（苏州）有限公司 | Radio frequency transmit-receive switch integrated circuit and transmit-receive method |
| CN111294081B (en) * | 2020-01-22 | 2022-01-11 | Oppo广东移动通信有限公司 | Radio frequency system and electronic equipment |
| CN211830765U (en) * | 2020-05-28 | 2020-10-30 | 维沃移动通信有限公司 | Radio frequency structure and electronic equipment |
-
2021
- 2021-03-25 CN CN202110319589.1A patent/CN113098555B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861734A (en) * | 2019-03-28 | 2019-06-07 | Oppo广东移动通信有限公司 | Radio frequency system, antenna switching control method, relevant device and storage medium |
| CN112448734A (en) * | 2020-10-14 | 2021-03-05 | 深圳市锐尔觅移动通信有限公司 | Radio frequency module, terminal equipment and signal transmitting method |
| CN112436845A (en) * | 2020-12-02 | 2021-03-02 | Oppo广东移动通信有限公司 | Radio frequency L-PA Mid device, radio frequency transceiving system and communication equipment |
Non-Patent Citations (1)
| Title |
|---|
| 150GHz低损耗Lange耦合器的设计;张贵博等;《微电子学》;20161031(第05期);85-88 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113098555A (en) | 2021-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7038214B2 (en) | Multi-way switch, radio frequency system and wireless communication device | |
| CN108923790B (en) | Multi-way selector switch, radio frequency system and wireless communication equipment | |
| JP2021510267A (en) | Multi-way switch, radio frequency system and wireless communication device | |
| CN108512567B (en) | Multi-way selector switch, radio frequency system and wireless communication equipment | |
| CN108880602B (en) | Multi-way selector switch and related products | |
| CN108494461B (en) | Wireless communication device | |
| KR20200070329A (en) | Multi-way switch, radio frequency system and radio communication device | |
| AU2020332428B2 (en) | Radio frequency front-end circuit and mobile terminal | |
| JP2021507638A (en) | Multi-way switch, radio frequency system and wireless communication device | |
| CN109039345B (en) | Multi-way selector switch and related products | |
| CN109861735A (en) | A kind of RF front-end circuit and mobile terminal | |
| CN111525933B (en) | Radio frequency circuit and electronic equipment | |
| CN108964675B (en) | Multi-way selector switch and related products | |
| CN105633554B (en) | A kind of antenna circuit, electronic equipment | |
| CN108900201B (en) | Multi-way selector switch, radio frequency system and electronic equipment | |
| CN116599542B (en) | Control method for realizing antenna multiplexing and electronic equipment | |
| CN109039367B (en) | Multi-way selector switch and related products | |
| CN111669199A (en) | Power detection circuit and electronic equipment | |
| CN213367788U (en) | Radio frequency front-end circuit and electronic equipment | |
| CN212324099U (en) | Radio frequency circuit and electronic device | |
| CN210609164U (en) | Radio frequency control circuit and electronic equipment | |
| CN210899166U (en) | Radio frequency control circuit and electronic equipment | |
| US9413444B2 (en) | Radio-frequency processing circuit and related wireless communication device | |
| CN112751573B (en) | Radio frequency front-end module, transceiver and communication terminal | |
| CN113098555B (en) | Radio frequency structure 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 |