Radio frequency channel circuit, radio frequency circuit and electronic equipment

Abstract

The present application discloses a radio frequency channel circuit, a radio frequency circuit and an electronic device, wherein the radio frequency channel circuit includes: a boost power supply circuit for coupling with an ultra-high frequency power amplifier circuit; a buck power supply circuit for coupling with a first multi-mode multi-frequency power amplifier circuit; a power supply switching circuit, coupling the boost power supply circuit and the buck power supply circuit, and for coupling with a second multi-mode multi-frequency power amplifier circuit and a signal control circuit, so as to receive a switching control signal sent by the signal control circuit, and in response to the switching control signal, coupling the boost power supply circuit or the buck power supply circuit with the second multi-mode multi-frequency power amplifier circuit. In the above manner, the radio frequency channel circuit in the present application flexibly switches the power input through the power supply switching circuit, and effectively simplifies the radio frequency front-end and back-end paths without affecting the radio frequency performance, so as to reduce the space occupied by the circuit board and reduce the manufacturing implementation cost.

Description

Technical Field

[0001] The present application relates to the field of electronic communication technology, and in particular to a radio frequency channel circuit, a radio frequency circuit and an electronic device. Background Art

[0002] With the popularization of 4G (fourth generation mobile communication technology) and 5G (fifth generation mobile communication technology), there are more and more combinations of frequency bands and CA (Carrier Aggregation) / ENDC (EUTRA and NRDual-Connectivity, 4G and 5G dual connectivity). There are dozens of frequency bands and hundreds or even thousands of combinations, which poses an increasing challenge to RF design.

[0003] However, related RF implementation solutions are generally implemented by stacking RF paths and combining RF paths for switching and multiplexing, which results in complex RF front-end circuit design, high cost, and suboptimal RF performance. Summary of the invention

[0004] The present application provides a radio frequency channel circuit, a radio frequency circuit and an electronic device. The radio frequency channel circuit can solve the problem that the radio frequency implementation scheme in the prior art is generally implemented by stacking radio frequency paths and combining radio frequency paths for switching and multiplexing, resulting in complex radio frequency front-end circuit design, high cost and suboptimal radio frequency performance.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a radio frequency channel circuit, wherein the radio frequency channel circuit includes: a boost power supply circuit for coupling with an ultra-high frequency power amplifier circuit; a buck power supply circuit for coupling with a first multi-mode multi-frequency power amplifier circuit; a power switching switch circuit, coupling the boost power supply circuit and the buck power supply circuit, and for coupling with a second multi-mode multi-frequency power amplifier circuit and a signal control circuit to receive a switching control signal sent by the signal control circuit, and coupling the boost power supply circuit or the buck power supply circuit with the second multi-mode multi-frequency power amplifier circuit in response to the switching control signal.

[0006] Among them, the RF channel circuit also includes a first RF front-end circuit, a second RF front-end circuit, an ultra-high frequency front-end circuit, a first RF back-end circuit, a second RF back-end circuit and an ultra-high frequency back-end circuit; the first RF front-end circuit is used to couple with the first multi-mode multi-frequency power amplifier circuit, the second RF front-end circuit is used to couple with the second multi-mode multi-frequency power amplifier circuit, and the ultra-high frequency front-end circuit is used to couple with the ultra-high frequency power amplifier circuit; the first RF back-end circuit is used to couple with the first multi-mode multi-frequency power amplifier circuit, the second RF back-end circuit is used to couple with the second multi-mode multi-frequency power amplifier circuit, and the ultra-high frequency back-end circuit is used to couple with the ultra-high frequency power amplifier circuit.

[0007] Among them, the first RF front-end circuit includes a first low-frequency transmission channel front-end terminal circuit and a first intermediate frequency transmission channel front-end terminal circuit, the second RF front-end circuit includes a second low-frequency transmission channel front-end terminal circuit, a second intermediate frequency transmission channel front-end terminal circuit and a high-frequency transmission channel front-end terminal circuit, the first RF back-end circuit includes a first low-frequency transmission channel back-end terminal circuit and a first intermediate frequency transmission channel back-end terminal circuit, the second RF back-end circuit includes a second low-frequency transmission channel back-end terminal circuit, a second intermediate frequency transmission channel back-end terminal circuit and a high-frequency transmission channel back-end terminal circuit; the first low-frequency transmission channel front-end terminal circuit is used to couple with the first end of the first multi-mode multi-frequency power amplifier circuit, the first intermediate frequency transmission channel front-end terminal circuit is used to couple with the second end of the first multi-mode multi-frequency power amplifier circuit, and the second low-frequency transmission channel front-end terminal circuit is used to couple with the second end of the first multi-mode multi-frequency power amplifier circuit. The circuit is used to couple with the first end of the second multi-mode multi-frequency power amplifier circuit, the second intermediate frequency transmission channel front terminal circuit is used to couple with the second end of the second multi-mode multi-frequency power amplifier circuit, and the high-frequency transmission channel front terminal circuit is used to couple with the third end of the second multi-mode multi-frequency power amplifier circuit; the first low-frequency transmission channel rear terminal circuit is used to couple with the third end of the first multi-mode multi-frequency power amplifier circuit, the first intermediate frequency transmission channel rear terminal circuit is used to couple with the fourth end of the first multi-mode multi-frequency power amplifier circuit, the second low-frequency transmission channel rear terminal circuit is used to couple with the fourth end of the second multi-mode multi-frequency power amplifier circuit, the second intermediate frequency transmission channel rear terminal circuit is used to couple with the fifth end of the second multi-mode multi-frequency power amplifier circuit, and the high-frequency transmission channel rear terminal circuit is used to couple with the sixth end of the second multi-mode multi-frequency power amplifier circuit.

[0008] Among them, the UHF front-end circuit includes a first UHF transmission channel front-end terminal circuit, a second UHF transmission channel front-end terminal circuit and a radio frequency signal switching sub-circuit, and the UHF back-end circuit includes an UHF transmission channel rear-end terminal circuit; the radio frequency signal switching sub-circuit couples the first UHF transmission channel front-end terminal circuit and the second UHF transmission channel front-end terminal circuit, and is used to couple with the first end of the UHF power amplifier circuit to couple the first UHF transmission channel front-end terminal circuit or the second UHF transmission channel front-end terminal circuit with the first end of the UHF power amplifier circuit; the UHF transmission channel rear-end terminal circuit is used to couple with the second end of the UHF power amplifier circuit.

[0009] Among them, the first RF back-end circuit also includes a first combination antenna and a first upper antenna, the second RF back-end circuit also includes a second combination antenna, a first lower antenna, and a second lower antenna, and the ultra-high frequency back-end circuit also includes a second upper antenna; the first combination antenna is coupled to the first low-frequency transmission channel rear terminal circuit, the first upper antenna is coupled to the first intermediate frequency transmission channel rear terminal circuit, the second combination antenna is coupled to the second low-frequency transmission channel rear terminal circuit, the first lower antenna is coupled to the second intermediate frequency transmission channel rear terminal circuit, the second lower antenna is coupled to the high-frequency transmission channel rear terminal circuit, and the second upper antenna is coupled to the ultra-high frequency transmission channel rear terminal circuit.

[0010] Among them, the boost power supply circuit is also used to couple with the signal processing circuit to receive a first power control signal sent by the signal processing circuit, and output or shut down the output of the first power signal in response to the first power control signal, and adjust the voltage amplitude of the first power signal; the buck power supply circuit is also used to couple with the signal processing circuit to receive a second power control signal sent by the signal processing circuit, and output or shut down the output of the second power signal in response to the second power control signal, and adjust the voltage amplitude of the second power signal.

[0011] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a radio frequency circuit, wherein the radio frequency circuit includes a radio frequency channel circuit, an ultra-high frequency power amplifier circuit, a first multi-mode multi-frequency power amplifier circuit and a second multi-mode multi-frequency power amplifier circuit, and the radio frequency channel circuit is coupled to the ultra-high frequency power amplifier circuit, the first multi-mode multi-frequency power amplifier circuit and the second multi-mode multi-frequency power amplifier circuit; wherein the radio frequency channel circuit is the radio frequency channel circuit as described in any one of the above items.

[0012] The radio frequency circuit further includes a signal control circuit, and the signal control circuit is coupled to the radio frequency channel circuit.

[0013] The radio frequency circuit further includes a radio frequency transceiver circuit and a signal processing circuit, and the radio frequency channel circuit is coupled to the radio frequency transceiver circuit and the signal processing circuit.

[0014] To solve the above technical problems, another technical solution adopted in the present application is: to provide an electronic device, wherein the electronic device includes a shell and a signal function circuit connected to each other; wherein the signal function circuit is a radio frequency channel circuit as described in any of the above items, or a radio frequency circuit as described above.

[0015] The beneficial effect of the present application is as follows: Different from the prior art, the boost power supply circuit in the RF channel circuit provided by the present application is used to couple with the ultra-high frequency power amplifier circuit, the buck power supply circuit is used to couple with the first multi-mode multi-frequency power amplifier circuit, the power switching switch circuit couples the boost power supply circuit and the buck power supply circuit, and is used to couple with the second multi-mode multi-frequency power amplifier circuit and the signal control circuit to receive the switching control signal sent by the signal control circuit, and couple the boost power supply circuit or the buck power supply circuit with the second multi-mode multi-frequency power amplifier circuit in response to the switching control signal, so that the power input can be flexibly switched through the power switching switch circuit, and without affecting the RF performance, the frequency band paths in the first multi-mode multi-frequency power amplifier circuit are effectively reduced by sharing part of the frequency band paths in the second multi-mode multi-frequency power amplifier circuit, so as to reduce the space occupied by the circuit board and reduce the manufacturing implementation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1 It is a structural schematic diagram of a first implementation mode of a radio frequency channel circuit of the present application; Figure 2 It is a structural schematic diagram of a second implementation mode of the radio frequency channel circuit of the present application; Figure 3 It is a structural schematic diagram of a third embodiment of the radio frequency channel circuit of the present application; Figure 4 It is a structural schematic diagram of an implementation method of a radio frequency circuit of the present application; Figure 5 It is a schematic structural diagram of an embodiment of an electronic device of the present application. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0018] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the implementation mode of this application are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0019] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] The present application is described in detail below with reference to the accompanying drawings and implementation methods.

[0021] See also Figure 1 , Figure 1 It is a schematic diagram of the structure of the first embodiment of the radio frequency channel circuit of the present application. In this embodiment, the radio frequency channel circuit 10 includes: a boost power supply circuit 11, a buck power supply circuit 12 and a power supply switching circuit 13.

[0022] Among them, a radio frequency channel circuit 10 provided in the present application is specifically applied to any reasonable electronic device with signal communication needs, such as mobile phones, tablet computers, electronic watches or surveillance cameras, so that the electronic device can use the radio frequency channel circuit 10 to correspond to an external communication base station and / or any other reasonable electronic device to achieve signal communication.

[0023] Specifically, the boost power supply circuit 11 is used to couple with the external ultra-high frequency power amplifier circuit 101 to provide a relatively high power supply voltage thereto, and drive the ultra-high frequency power amplifier circuit 101 to perform corresponding signal power amplification operation.

[0024] The step-down power supply circuit 12 is used to couple with the external first multi-mode multi-frequency power amplifier circuit 102 to provide a relatively low power supply voltage thereto, so as to drive the first multi-mode multi-frequency power amplifier circuit 102 to perform corresponding signal power amplification operation.

[0025] It is worth mentioning that in the field of communications, in order to distinguish communication signals with different performances, communication signals are generally divided into LB: Low Band, 617~960MHZ (megahertz); MB: Middle Band, 1427~2200MHZ; HB: High Band, 2300~2690MHZ; UHB: Ultra High Band, 3300~5000MHZ, etc. according to the signal frequency band.

[0026] Among them, the ultra-high frequency power amplifier circuit 101 corresponds to the power amplifier circuit in the signal path of the ultra-high frequency band, and the first multi-mode multi-frequency power amplifier circuit 102 and the second multi-mode multi-frequency power amplifier circuit 103 mentioned in this article can be specifically understood as MMPA (Multi-mode Multi-band Power Amplifier), that is, a composite power amplifier circuit corresponding to multiple frequency band signal paths of low frequency band, medium frequency band and high frequency band.

[0027] The MMPA can be powered by a boost power circuit 11 or a buck power circuit 12. When the boost power circuit 11 is used to power the MMPA or the buck power circuit 12 is used to power the MMPA, the MMPA can meet communication requirements of different signal frequency bands.

[0028] In addition, the term "coupled" herein refers to any direct and indirect connection means. Therefore, if the first circuit is described as being coupled to the second circuit, it means that the first circuit can be directly connected to the second circuit through electrical connection or signal connection methods such as wireless transmission, optical transmission, etc., or can be indirectly connected to the second circuit through other circuits or connection means.

[0029] Furthermore, the power switching switch circuit 13 couples the boost power supply circuit 11 and the buck power supply circuit 12, and is used to couple with an external second multi-mode multi-frequency power amplifier circuit 103 and an external signal control circuit 104, and is used for the switching control signal sent by the signal control circuit 104 to selectively couple one of the boost power supply circuit 11 and the buck power supply circuit 12 with the second multi-mode multi-frequency power amplifier circuit 103 according to the switching control signal, so as to utilize the boost power supply circuit 11 to power the second multi-mode multi-frequency power amplifier circuit 103, or utilize the buck power supply circuit 12 to power the second multi-mode multi-frequency power amplifier circuit 103, thereby being able to correspondingly meet the communication requirements of different signal frequency bands.

[0030] The above scheme flexibly switches the power input through the power switching circuit 13 to utilize the boost power circuit 11 or the buck power circuit 12 to power the second multi-mode multi-frequency power amplifier circuit 103. Under the premise of not affecting the RF performance, by sharing part of the frequency band paths in the second multi-mode multi-frequency power amplifier circuit 103, the frequency band paths in the first multi-mode multi-frequency power amplifier circuit 102 can be effectively reduced, so as to reduce the overall space occupied by the RF channel circuit 10 on the circuit board and reduce the manufacturing implementation cost.

[0031] See also Figure 2 , Figure 21 is a schematic diagram of the structure of the second embodiment of the RF channel circuit of the present application. This embodiment is based on the first embodiment of the RF channel circuit provided in the present application, and the RF channel circuit 20 specifically includes a first RF front-end circuit 24, a second RF front-end circuit 25, an ultra-high frequency front-end circuit 26, a first RF back-end circuit 27, a second RF back-end circuit 28 and an ultra-high frequency back-end circuit 29.

[0032] It is understandable that, in order to adapt to the first multi-mode multi-frequency power amplifier circuit 102 to form multiple frequency band signal paths, a first RF front-end circuit 24 and a first RF back-end circuit 27 are respectively provided at the front and back ends of the first multi-mode multi-frequency power amplifier circuit 102.

[0033] Among them, the first RF front-end circuit 24 is used to couple with the first multi-mode multi-frequency power amplifier circuit 102, and the first RF back-end circuit 27 is also used to couple with the first multi-mode multi-frequency power amplifier circuit 102, so that when there is a communication demand for one or more signal frequency bands among the low frequency band, the medium frequency band and the high frequency band, the corresponding signal communication can be realized through the frequency band path formed by the first RF front-end circuit 24, the first multi-mode multi-frequency power amplifier circuit 102 and the first RF back-end circuit 27.

[0034] Similarly, in order to adapt to the second multi-mode multi-frequency power amplifier circuit 103 to form multiple frequency band signal paths, a second RF front-end circuit 25 and a first RF back-end circuit 27 are respectively provided at the front and back ends of the second multi-mode multi-frequency power amplifier circuit 103.

[0035] Among them, the second RF front-end circuit 25 is used to couple with the second multi-mode multi-frequency power amplifier circuit 103, and the second RF back-end circuit 28 is also used to couple with the second multi-mode multi-frequency power amplifier circuit 103, so that when there is a communication demand for one or more signal frequency bands among the low frequency band, the medium frequency band and the high frequency band, the corresponding signal communication can be realized through the frequency band path formed by the second RF front-end circuit 25, the second multi-mode multi-frequency power amplifier circuit 103 and the second RF back-end circuit 28.

[0036] In some embodiments, the first multi-mode multi-frequency power amplifier circuit 102 may be the same as the second multi-mode multi-frequency power amplifier circuit 103, or may be different from the second multi-mode multi-frequency power amplifier circuit 103, and the specific details may be determined by the actual application scenario, and the present application does not limit this.

[0037] In addition, in order to adapt to the UHF power amplifier circuit 101 to form an UHF signal path, an UHF front-end circuit 26 and an UHF back-end circuit 29 are respectively provided at the front and rear ends of the UHF power amplifier circuit 101 .

[0038] Among them, the UHF front-end circuit 26 is used to couple with the UHF multi-frequency power amplifier circuit, and the UHF back-end circuit 29 is also used to couple with the UHF power amplifier circuit 101, so that when there is a communication demand for the UHF signal frequency band, the corresponding signal communication can be achieved through the frequency band path formed by the UHF front-end circuit 26, the UHF power amplifier circuit 101 and the UHF back-end circuit 29.

[0039] Furthermore, in one embodiment, the first RF front-end circuit 24 specifically includes a first low-frequency transmission channel front-end subcircuit 241 and a first intermediate frequency transmission channel front-end subcircuit 242, and the first RF back-end circuit 27 correspondingly includes a first low-frequency transmission channel rear-end subcircuit 271 and a first intermediate frequency transmission channel rear-end subcircuit 272.

[0040] Among them, the first low-frequency transmission channel front terminal circuit 241 is used to couple with the first end of the first multi-mode multi-frequency power amplifier circuit 102, and the first intermediate frequency transmission channel front terminal circuit 242 is used to couple with the second end of the first multi-mode multi-frequency power amplifier circuit 102; and the first low-frequency transmission channel rear terminal circuit 271 is used to couple with the third end of the first multi-mode multi-frequency power amplifier circuit 102, and the first intermediate frequency transmission channel rear terminal circuit 272 is used to couple with the fourth end of the first multi-mode multi-frequency power amplifier circuit 102, so that the first low-frequency transmission channel front terminal circuit 241, the first multi-mode multi-frequency power amplifier circuit 102 and the first low-frequency transmission channel rear terminal circuit 271 can form a frequency band path of the low-frequency signal to meet the communication requirements of the low-frequency signal; and the first intermediate frequency transmission channel front terminal circuit 242, the first multi-mode multi-frequency power amplifier circuit 102 and the first intermediate frequency transmission channel rear terminal circuit 272 can form a frequency band path of the intermediate frequency signal to meet the communication requirements of the intermediate frequency signal.

[0041] Similarly, the second RF front-end circuit 25 specifically also includes a second low-frequency transmission channel front-end terminal circuit 251, a second intermediate frequency transmission channel front-end terminal circuit 252 and a high-frequency transmission channel front-end terminal circuit 253, and the second RF back-end circuit 28 includes a second low-frequency transmission channel rear-end terminal circuit 281, a second intermediate frequency transmission channel rear-end terminal circuit 282 and a high-frequency transmission channel rear-end terminal circuit 283.

[0042] Among them, the second low-frequency transmission channel front terminal circuit 251 is used to couple with the first end of the second multi-mode multi-frequency power amplifier circuit 103, the second intermediate frequency transmission channel front terminal circuit 252 is used to couple with the second end of the second multi-mode multi-frequency power amplifier circuit 103, and the high-frequency transmission channel front terminal circuit 253 is used to couple with the third end of the second multi-mode multi-frequency power amplifier circuit 103; the second low-frequency transmission channel rear terminal circuit 281 is used to couple with the fourth end of the second multi-mode multi-frequency power amplifier circuit 103, the second intermediate frequency transmission channel rear terminal circuit 282 is used to couple with the fifth end of the second multi-mode multi-frequency power amplifier circuit 103, and the high-frequency transmission channel rear terminal circuit 283 is used to couple with the sixth end of the second multi-mode multi-frequency power amplifier circuit 103.

[0043] Similarly, the second low-frequency transmission channel front-end terminal circuit 251, the second multi-mode multi-frequency power amplifier circuit 103 and the second low-frequency transmission channel rear-end terminal circuit 281 can constitute a frequency band path for low-frequency signals to meet the communication requirements of low-frequency signals; the second intermediate-frequency transmission channel front-end terminal circuit 252, the second multi-mode multi-frequency power amplifier circuit 103 and the second intermediate-frequency transmission channel rear-end terminal circuit 282 can constitute a frequency band path for intermediate-frequency signals to meet the communication requirements of intermediate-frequency signals; and the high-frequency transmission channel front-end terminal circuit 253, the second multi-mode multi-frequency power amplifier circuit 103 and the high-frequency transmission channel rear-end terminal circuit 283 can constitute a frequency band path for high-frequency signals to meet the communication requirements of high-frequency signals.

[0044] It is understandable that, compared with the second RF front-end circuit 25, the first RF front-end circuit 24 lacks the high-frequency transmission channel front-end terminal circuit 253; compared with the second RF back-end circuit 28, the first RF back-end circuit 27 lacks the high-frequency transmission channel back-end terminal circuit 283; therefore, the second RF front-end circuit 25, the first multi-mode multi-frequency power amplifier circuit 102 and the first RF back-end circuit 27 will not have a frequency band path for high-frequency signals and cannot meet the communication requirements of high-frequency signals alone.

[0045] However, this deficiency can be compensated by flexibly switching the power input through the power switching circuit 23 to use the boost power circuit 21 or the buck power circuit 22 to power the second multi-mode multi-frequency power amplifier circuit 103, that is, the frequency band path of the high-frequency signal formed by the shared high-frequency transmission channel front terminal circuit 253, the second multi-mode multi-frequency power amplifier circuit 103 and the high-frequency transmission channel rear terminal circuit 283 meets the communication requirements of the high-frequency signal, so as to effectively reduce the frequency band path in the first multi-mode multi-frequency power amplifier circuit 102 without affecting the RF performance, thereby reducing the overall space occupied by the RF channel circuit 20 on the circuit board and reducing the manufacturing implementation cost.

[0046] In other embodiments, the RF channel circuit 20 may specifically be composed of the second RF front-end circuit 25 lacking a high-frequency transmission channel front-end terminal circuit 253, but the first RF front-end circuit 24 having a high-frequency transmission channel front-end terminal circuit 253; and the second RF back-end circuit 28 lacks a high-frequency transmission channel front-end terminal circuit 253, but the first RF back-end circuit 27 has a high-frequency transmission channel back-end terminal circuit 283; the RF channel circuit 20 may specifically be composed of the first RF front-end circuit 24 lacking a low-frequency transmission channel front-end terminal circuit or an intermediate-frequency transmission channel front-end terminal circuit, and the first RF back-end circuit 27 lacking a low-frequency transmission channel back-end terminal circuit or an intermediate-frequency transmission channel back-end terminal circuit, compared to the second RF front-end circuit 25, and the specific details may be determined by the actual application scenario, and the present application does not limit this.

[0047] In one embodiment, the UHF front-end circuit 26 specifically further includes a first UHF transmission channel front-end subcircuit 262, a second UHF transmission channel front-end subcircuit 263 and a RF signal switching subcircuit 261, and the UHF back-end circuit 29 specifically also includes an UHF transmission channel back-end subcircuit 283.

[0048] The RF signal switching subcircuit 261 is coupled to the first UHF transmission channel front terminal circuit 262 and the second UHF transmission channel front terminal circuit 263, and is used to couple with the first end of the UHF power amplifier circuit 101; the UHF transmission channel rear terminal circuit 283 is used to couple with the second end of the UHF power amplifier circuit 101.

[0049] Among them, the RF signal switching sub-circuit 261 is also used to couple with the signal control circuit 104 to receive the channel switching signal sent by the signal control circuit 104, and in response to the channel switching signal, couple one of the first UHF transmission channel front-end terminal circuit 262 and the second UHF transmission channel front-end terminal circuit 263 to the first end of the UHF power amplifier circuit 101, so that the first UHF transmission channel front-end terminal circuit 262 and the second UHF transmission channel front-end terminal circuit 263 can be used together with the UHF power amplifier circuit 101 and the UHF transmission channel rear terminal circuit 283 to form a frequency band path for the UHF signal to meet the communication requirements of the UHF signal.

[0050] Furthermore, in one embodiment, the first RF back-end circuit 27 specifically includes a first combination antenna 273 and a first upper antenna 274, the first combination antenna 273 is coupled to the first low-frequency transmission channel rear terminal circuit 271, and the first upper antenna 274 is coupled to the first intermediate frequency transmission channel rear terminal circuit 272, so that the first low-frequency transmission channel front terminal circuit 241, the first multi-mode multi-frequency power amplifier circuit 102, the first low-frequency transmission channel rear terminal circuit 271 and the first combination antenna 273 can be used to form a frequency band path for the low-frequency signal to meet the communication requirements of the low-frequency signal; and the first intermediate frequency transmission channel front terminal circuit 242, the first multi-mode multi-frequency power amplifier circuit 102, the first intermediate frequency transmission channel rear terminal circuit 272 and the first upper antenna 274 are used to form a frequency band path for the intermediate frequency signal to meet the communication requirements of the intermediate frequency signal.

[0051] Similarly, the second RF back-end circuit 28 specifically also includes a second combination antenna 284, a first lower antenna 285, and a second lower antenna 286, and the ultra-high frequency back-end circuit 29 specifically also includes a second upper antenna 292, the second combination antenna 284 is coupled to the second low-frequency transmission channel rear terminal circuit 281, the first lower antenna 285 is coupled to the second intermediate frequency transmission channel rear terminal circuit 282, the second lower antenna 286 is coupled to the high-frequency transmission channel rear terminal circuit 283, and the second upper antenna 292 is coupled to the ultra-high frequency transmission channel rear terminal circuit 283.

[0052] Among them, the second low-frequency transmission channel front-end terminal circuit 251, the second multi-mode multi-frequency power amplifier circuit 103, the second low-frequency transmission channel rear-end terminal circuit 281 and the second combined antenna 284 can constitute a frequency band path for low-frequency signals to meet the communication requirements of low-frequency signals; the second intermediate frequency transmission channel front-end terminal circuit 252, the second multi-mode multi-frequency power amplifier circuit 103, the second intermediate frequency transmission channel rear-end terminal circuit 282 and the first lower antenna 285 can constitute a frequency band path for intermediate frequency signals to meet the communication requirements of intermediate frequency signals; and the high-frequency transmission channel front-end terminal circuit 253, the second multi-mode multi-frequency power amplifier circuit 103, the high-frequency transmission channel rear-end terminal circuit 283 and the second lower antenna 286 can constitute a frequency band path for high-frequency signals to meet the communication requirements of high-frequency signals.

[0053] It is worth noting that the upper antenna can be specifically understood as an antenna installed on the upper end of an electronic device integrated with a radio frequency channel circuit 20, while the lower antenna is an antenna installed on the lower end of the electronic device; and the combined antenna refers to an upper antenna, a lower antenna and a combined functional circuit that can electrically switch the upper antenna and the lower antenna.

[0054] In one embodiment, the boost power supply circuit 21 is specifically used to couple with an external signal processing circuit 105 to receive a first power control signal sent by the signal processing circuit 105, and output or shut down the output of the first power signal in response to the first power control signal, so as to cooperate with the power switching circuit 23 to supply power or stop power to the ultra-high frequency power amplifier circuit 101 or the second multi-mode multi-frequency power amplifier circuit 103.

[0055] The boost power supply circuit 21 can also respond to the first power supply control signal and adjust the voltage amplitude of the first power supply signal output to the ultra-high frequency power amplifier circuit 101 or the second multi-mode multi-frequency power amplifier circuit 103 in accordance with the communication requirements of the current signal frequency band.

[0056] Similarly, the step-down power supply circuit 22 is also used to couple with the signal processing circuit 105 to receive a second power control signal sent by the signal processing circuit 105, and output or shut down the output of the second power signal in response to the second power control signal, so as to cooperate with the power switching circuit 23 to supply power or stop powering the ultra-high frequency power amplifier circuit 101 or the second multi-mode multi-frequency power amplifier circuit 103.

[0057] The step-down power supply circuit 22 can also respond to the second power supply control signal and adjust the voltage amplitude of the second power supply signal output to the ultra-high frequency power amplifier circuit 101 or the second multi-mode multi-frequency power amplifier circuit 103 in accordance with the communication requirements of the current signal frequency band.

[0058] In some embodiments, the signal processing circuit 105 may be the same as or different from the signal control circuit 104 to reduce the computing resources of the main control center, which may be determined by the actual application scenario and is not limited in this application.

[0059] See also Figure 3 , Figure 3 This embodiment is based on the second embodiment of the radio frequency channel circuit provided in the present application, and the radio frequency channel circuit 30 specifically further includes a radio frequency transceiver circuit 310 .

[0060] Among them, the RF transceiver circuit 310 is specifically coupled to the first low-frequency transmission channel front-end terminal circuit 341 and the first intermediate-frequency transmission channel front-end terminal circuit 342, the second low-frequency transmission channel front-end terminal circuit 351, the second intermediate-frequency transmission channel front-end terminal circuit 352, the high-frequency transmission channel front-end terminal circuit 353, the first ultra-high frequency transmission channel front-end terminal circuit 362, and the second ultra-high frequency transmission channel front-end terminal circuit 363, and is used to couple with the signal processing circuit 105 to realize the corresponding RF transceiver function.

[0061] For ease of understanding, Figure 3 As shown, the first low frequency transmission channel front end subcircuit 341 and the first intermediate frequency transmission channel front end subcircuit 342, the second low frequency transmission channel front end subcircuit 351, the second intermediate frequency transmission channel front end subcircuit 352, the high frequency transmission channel front end subcircuit 353, the first ultra-high frequency transmission channel front end subcircuit 362, the second ultra-high frequency transmission channel front end subcircuit 363 and the radio frequency signal switching subcircuit 361 correspond to the TX0-LB front end, TX0-MB front end, TX1-LB front end, TX1-MB front end, TX1-HB front end, TX0-UHB, TX1-UHB, RF switching respectively; the first multi-mode multi-frequency power amplifier circuit 102, the second multi-mode multi-frequency power amplifier circuit 103 and the ultra-high frequency power amplifier circuit 101 correspond to MMPA0, MMPA1, UHB PA (Power Amplifier, power amplifier); the first low-frequency transmission channel rear terminal circuit 371, the first intermediate frequency transmission channel rear terminal circuit 372, the second low-frequency transmission channel rear terminal circuit 381, the second intermediate frequency transmission channel rear terminal circuit 382, ​​the high-frequency transmission channel rear terminal circuit 383, and the ultra-high frequency transmission channel rear terminal circuit 383 correspond to the LB-TX0 back end, the MB-TX0 back end, the LB-TX1 back end, the MB-TX1 back end, the HB-TX1 back end, and the UHB-TX0 back end respectively; the boost power supply circuit 31, the buck power supply circuit 32, and the power supply switching circuit 33 correspond to the Boost circuit, the Buck circuit, and the VCC switching respectively; the first combination antenna 373 and the second combination antenna 384 correspond to the upper / lower antennas at the corresponding positions respectively, the first upper antenna 374 and the second upper antenna 392 correspond to the upper antennas at the corresponding positions respectively, and the first lower antenna 385 and the second lower antenna 386 correspond to the lower antennas at the corresponding positions respectively. For example, Figure 3 TX stands for Transmit, VCC is the code for the power level, MIPI stands for Mobile Industry Processor Interface, which can also be understood as a power control signal, and the upper / lower antennas correspond to combined antennas.

[0062] In the communication of the radio frequency channel circuit 30: 1. LB SA (Standalone, independent communication) TX signal can communicate via TX0 front-end path + TX0 back-end path, MB / HB SA TX signal can communicate via TX1 front-end path + TX1 back-end path, UHB SA TX signal can communicate via TX1 front-end path + TX0 back-end path; 2. When CA / ENDC is combined between LB+LB (here specifically referring to the communication signal, the same below), the LB0 TX signal can communicate via the TX0 front-end path + TX0 back-end path, and the LB1 TX signal can communicate via the TX1 front-end path + TX1 back-end path; 3. When CA / ENDC is combined between LB+MB / HB, the LB TX signal can communicate via the TX0 front-end path + TX0 back-end path, and the MB / HB TX signal can communicate via the TX1 front-end path + TX1 back-end path; 4. When CA / ENDC is combined between LB+UHB, the LB TX signal can communicate via the TX0 front-end path + TX0 back-end path, and the UHB TX signal can communicate via the TX1 front-end path + TX0 back-end path; 5. When the CA / ENDC combination between MB+MB / HB is used, the MB TX signal can communicate via the TX1 front-end path + TX1 back-end path, and the MB / HB TX signal can communicate via the TX0 front-end path + TX0 back-end path; 6. When CA / ENDC is combined between MB+UHB, MB TX signal can communicate via TX1 front-end path + TX1 back-end path, and UHB TX signal can communicate via TX0 front-end path + TX0 back-end path; 7. When CA / ENDC is combined between HB+MB, HB TX signal can communicate via TX1 front-end path + TX1 back-end path, and MB TX signal can communicate via TX0 front-end path + TX0 back-end path; 8. When CA / ENDC is combined between HB+UHB, HB TX signal can communicate via TX1 front-end path + TX1 back-end path, and UHB TX signal can communicate via TX0 front-end path + TX0 back-end path; 9. MMPA0 is powered by Buck power; MMPA1 can use Buck power or Boost power, and the power is switched through the VCC switch; UHB PA is powered by Boost power.

[0063] It can be seen that by using the VCC switching switch to switch the power supply and combining it with the switching and multiplexing of some RF paths, the RF path design of the front and back ends of the PA can be effectively simplified, the RF performance can be improved, and the cost can be reduced.

[0064] Among them, in the actual application of the RF channel circuit 30, the frequency band path can be greatly reduced, and the HB TX0 front-end path + back-end path can be further optimized to save manufacturing implementation costs; when the CA / ENDC combination between MB / HB+UHB is used, because the two groups of TX antennas are distributed at the lower and upper antennas, the SAR performance is good; when the CA / ENDC combination between MB / HB+UHB is used, MB / HB can pass through the lower antenna, and the lower antenna performance of MB / HB is better than that of the upper antenna.

[0065] Therefore, the above solution can effectively reduce project costs, reduce the space occupied by devices on circuit boards, improve the SAR performance under the MB / HB+UHB combination, and improve the RF performance under the MB / HB+UHB combination. Through flexible switching of the RF front-end path and flexible switching of the power input, the RF front-end and back-end path design can be effectively simplified without affecting the final RF performance.

[0066] This application also specifically uses a radio frequency circuit, see Figure 4 , Figure 4 In this embodiment, the radio frequency circuit 40 includes a radio frequency channel circuit 41, an ultra-high frequency power amplifier circuit 42, a first multi-mode multi-frequency power amplifier circuit 43, and a second multi-mode multi-frequency power amplifier circuit 44.

[0067] The RF channel circuit 41 is coupled to the UHF power amplifier circuit 42 , the first multi-mode multi-frequency power amplifier circuit 43 , and the second multi-mode multi-frequency power amplifier circuit 44 .

[0068] In one embodiment, the RF circuit 40 further includes a signal control circuit 46 , and the signal control circuit 46 is coupled to the RF channel circuit 41 .

[0069] In one embodiment, the RF circuit 40 further includes a RF transceiver circuit 45 and a signal processing circuit 47 , and the RF channel circuit 41 is coupled to the RF transceiver circuit 45 and the signal processing circuit 47 .

[0070] It should be noted that the RF channel circuit 41 described in this embodiment is the RF channel circuit 10, the RF channel circuit 20 or the RF channel circuit 30 described in any one of the above embodiments. Figure 1-Figure 3 And the related text content will not be repeated here.

[0071] This application also specifically uses an electronic device, see Figure 5 , Figure 5 Schematic diagram of the framework of an electronic device of the present application. In this embodiment, the electronic device 50 includes a housing 51 and a signal function circuit 52 connected to the housing 51 .

[0072] It should be noted that the signal function circuit 52 described in this embodiment is the RF channel circuit 10, RF channel circuit 20 or RF channel circuit 230, or RF circuit 40 described in any one of the above embodiments. Figure 1-Figure 4 And the related text content will not be repeated here.

[0073] Different from the prior art, the boost power supply circuit in the RF channel circuit provided in the present application is used to couple with the ultra-high frequency power amplifier circuit, the buck power supply circuit is used to couple with the first multi-mode multi-frequency power amplifier circuit, the power switching switch circuit couples the boost power supply circuit and the buck power supply circuit, and is used to couple with the second multi-mode multi-frequency power amplifier circuit and the signal control circuit to receive the switching control signal sent by the signal control circuit, and couple the boost power supply circuit or the buck power supply circuit with the second multi-mode multi-frequency power amplifier circuit in response to the switching control signal, so that the power input can be flexibly switched through the power switching switch circuit. Under the premise of not affecting the RF performance, by sharing part of the frequency band paths in the second multi-mode multi-frequency power amplifier circuit, the frequency band paths in the first multi-mode multi-frequency power amplifier circuit are effectively reduced, so as to reduce the space occupied by the circuit board and reduce the manufacturing implementation cost.

[0074] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A radio frequency channel circuit, characterized in that: The radio frequency channel circuit comprises: A boost power supply circuit, used for coupling with an ultra-high frequency power amplifier circuit; A step-down power supply circuit, used to couple with the first multi-mode multi-frequency power amplifier circuit; A power switching circuit is coupled to the boost power supply circuit and the buck power supply circuit, and is used to couple with a second multi-mode multi-frequency power amplifier circuit and a signal control circuit to receive a switching control signal sent by the signal control circuit, and couple the boost power supply circuit or the buck power supply circuit with the second multi-mode multi-frequency power amplifier circuit in response to the switching control signal.

2. The radio frequency channel circuit according to claim 1, characterized in that: The radio frequency channel circuit also includes a first radio frequency front-end circuit, a second radio frequency front-end circuit, an ultra-high frequency front-end circuit, a first radio frequency back-end circuit, a second radio frequency back-end circuit and an ultra-high frequency back-end circuit; The first RF front-end circuit is used to couple with the first multi-mode multi-frequency power amplifier circuit, the second RF front-end circuit is used to couple with the second multi-mode multi-frequency power amplifier circuit, and the UHF front-end circuit is used to couple with the UHF power amplifier circuit; The first RF back-end circuit is used to couple with the first multi-mode multi-frequency power amplifier circuit, the second RF back-end circuit is used to couple with the second multi-mode multi-frequency power amplifier circuit, and the ultra-high frequency back-end circuit is used to couple with the ultra-high frequency power amplifier circuit.

3. The radio frequency channel circuit according to claim 2, characterized in that: The first RF front-end circuit includes a first low-frequency transmission channel front-end sub-circuit and a first intermediate frequency transmission channel front-end sub-circuit, the second RF front-end circuit includes a second low-frequency transmission channel front-end sub-circuit, a second intermediate frequency transmission channel front-end sub-circuit and a high-frequency transmission channel front-end sub-circuit, the first RF back-end circuit includes a first low-frequency transmission channel back-end sub-circuit and a first intermediate frequency transmission channel back-end sub-circuit, the second RF back-end circuit includes a second low-frequency transmission channel back-end sub-circuit, a second intermediate frequency transmission channel back-end sub-circuit and a high-frequency transmission channel back-end sub-circuit; The first low-frequency transmission channel front-end terminal circuit is used to couple with the first end of the first multi-mode multi-frequency power amplifier circuit, the first intermediate-frequency transmission channel front-end terminal circuit is used to couple with the second end of the first multi-mode multi-frequency power amplifier circuit, the second low-frequency transmission channel front-end terminal circuit is used to couple with the first end of the second multi-mode multi-frequency power amplifier circuit, the second intermediate-frequency transmission channel front-end terminal circuit is used to couple with the second end of the second multi-mode multi-frequency power amplifier circuit, and the high-frequency transmission channel front-end terminal circuit is used to couple with the third end of the second multi-mode multi-frequency power amplifier circuit; The first low-frequency transmission channel rear terminal circuit is used to couple with the third end of the first multi-mode multi-frequency power amplifier circuit, the first intermediate frequency transmission channel rear terminal circuit is used to couple with the fourth end of the first multi-mode multi-frequency power amplifier circuit, the second low-frequency transmission channel rear terminal circuit is used to couple with the fourth end of the second multi-mode multi-frequency power amplifier circuit, the second intermediate frequency transmission channel rear terminal circuit is used to couple with the fifth end of the second multi-mode multi-frequency power amplifier circuit, and the high-frequency transmission channel rear terminal circuit is used to couple with the sixth end of the second multi-mode multi-frequency power amplifier circuit.

4. The radio frequency channel circuit according to claim 3, characterized in that: The UHF front-end circuit includes a first UHF transmission channel front-end sub-circuit, a second UHF transmission channel front-end sub-circuit and a radio frequency signal switching sub-circuit, and the UHF back-end circuit includes an UHF transmission channel back-end sub-circuit; The RF signal switching subcircuit is coupled to the first UHF transmission channel front end subcircuit and the second UHF transmission channel front end subcircuit, and is used to couple to the first end of the UHF power amplifier circuit, so as to couple the first UHF transmission channel front end subcircuit or the second UHF transmission channel front end subcircuit to the first end of the UHF power amplifier circuit; The UHF transmission channel rear terminal circuit is used to couple with the second end of the UHF power amplifier circuit.

5. The radio frequency channel circuit according to claim 4, characterized in that: The first RF backend circuit further includes a first combined antenna and a first upper antenna, the second RF backend circuit further includes a second combined antenna, a first lower antenna, and a second lower antenna, and the UHF backend circuit further includes a second upper antenna; The first combination antenna is coupled to the first low-frequency transmission channel rear terminal circuit, the first upper antenna is coupled to the first intermediate frequency transmission channel rear terminal circuit, the second combination antenna is coupled to the second low-frequency transmission channel rear terminal circuit, the first lower antenna is coupled to the second intermediate frequency transmission channel rear terminal circuit, the second lower antenna is coupled to the high-frequency transmission channel rear terminal circuit, and the second upper antenna is coupled to the ultra-high frequency transmission channel rear terminal circuit.

6. The radio frequency channel circuit according to any one of claims 1 to 5, characterized in that: The boost power supply circuit is also used to couple with the signal processing circuit to receive a first power supply control signal sent by the signal processing circuit, and output or stop outputting the first power supply signal in response to the first power supply control signal, and adjust the voltage amplitude of the first power supply signal; The step-down power supply circuit is also used to couple with the signal processing circuit to receive a second power supply control signal sent by the signal processing circuit, and output or shut down the output of the second power supply signal in response to the second power supply control signal, and adjust the voltage amplitude of the second power supply signal.

7. A radio frequency circuit, characterized in that: The radio frequency circuit includes a radio frequency channel circuit, an ultra-high frequency power amplifier circuit, a first multi-mode multi-frequency power amplifier circuit, and a second multi-mode multi-frequency power amplifier circuit, and the radio frequency channel circuit is coupled to the ultra-high frequency power amplifier circuit, the first multi-mode multi-frequency power amplifier circuit, and the second multi-mode multi-frequency power amplifier circuit; The radio frequency channel circuit is the radio frequency channel circuit as claimed in any one of claims 1 to 6.

8. The radio frequency circuit according to claim 7, characterized in that: The radio frequency circuit further includes a signal control circuit, and the signal control circuit is coupled to the radio frequency channel circuit.

9. The radio frequency circuit according to claim 7, characterized in that: The radio frequency circuit further includes a radio frequency transceiver circuit and a signal processing circuit, and the radio frequency channel circuit is coupled to the radio frequency transceiver circuit and the signal processing circuit.

10. An electronic device, characterized in that: The electronic device comprises a housing and a signal function circuit connected to each other; The signal function circuit is a radio frequency channel circuit as described in any one of claims 1 to 6, or a radio frequency circuit as described in any one of claims 7 to 9.

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