Power amplifier harmonic control circuit, device and electronic equipment

Abstract

The present application relates to a power amplifier harmonic control circuit, device and electronic device. A power amplifier harmonic control circuit, the power amplifier harmonic control circuit includes a harmonic control module and a high-efficiency power amplifier module; the input end of the harmonic control module is used to receive a first input signal, the power harmonic control module is used to generate a harmonic control signal based on the first input signal, and the output end of the power harmonic control module is used to output the harmonic control signal; the first input end of the high-efficiency power amplifier module is used to receive a second input signal; the second input end of the high-efficiency power amplifier module is connected to the output end of the harmonic control module; the output end of the high-efficiency power amplifier module is used to output an output signal. The power amplifier harmonic control circuit of the present application can control the harmonics in the high-efficiency power amplifier module to achieve the purpose of improving the power amplifier efficiency, and can meet the needs of different application environments.

Description

Technical Field

[0001] The present application relates to the technical field of electronic circuits, and in particular to a power amplifier harmonic control circuit, device and electronic equipment. Background Art

[0002] High-efficiency power amplifiers need to control the output harmonics to achieve the purpose of improving efficiency; harmonic control has been widely used in high-efficiency power amplifiers; usually capacitors or microstrip matching are used to achieve harmonic control. However, with the development of technology, the use of capacitors or microstrip matching to achieve harmonic control has limited improvement in power amplifier efficiency and cannot meet the needs of different application environments. Summary of the invention

[0003] Based on this, it is necessary to provide a power amplifier harmonic control circuit, device and electronic equipment to address the problems in the above-mentioned background technology, which can improve the power amplifier efficiency and meet the needs of different application environments.

[0004] In order to solve the above technical problems and other problems, according to some embodiments, in a first aspect, the present application provides a power amplifier harmonic control circuit, the power amplifier harmonic control circuit includes a harmonic control module and a high-efficiency power amplifier module; wherein,

[0005] The harmonic control module includes an input end and an output end; the input end of the harmonic control module is used to receive a first input signal, the power harmonic control module is used to generate a harmonic control signal based on the first input signal, and the output end of the power harmonic control module is used to output the harmonic control signal;

[0006] The high-efficiency power amplifier module includes a first input terminal, a second input terminal and an output terminal; the first input terminal of the high-efficiency power amplifier module is used to receive a second input signal; the second input terminal of the high-efficiency power amplifier module is connected to the output terminal of the harmonic control module; the output terminal of the high-efficiency power amplifier module is used to output an output signal.

[0007] In the power amplifier harmonic control circuit of the above embodiment, by combining the harmonic control module and the high-efficiency power amplifier module and inputting the harmonic control signal into the high-efficiency power amplifier module through the harmonic control module, the harmonics in the high-efficiency power amplifier module can be controlled, thereby achieving the purpose of improving the power amplifier efficiency and meeting the needs of different application environments.

[0008] In some embodiments, the high efficiency power amplifier module includes:

[0009] An input bridge, the input bridge comprising an input end, a first output end and a second output end; the input end of the input bridge serves as the input end of the high-efficiency power amplifier module;

[0010] A first balanced power amplifier, wherein an input terminal of the first balanced power amplifier is connected to a first output terminal of an input bridge;

[0011] A second balanced power amplifier, wherein an input end of the second balanced power amplifier is connected to a second output end of the input bridge;

[0012] An output bridge, the output bridge comprises a first input terminal, a second input terminal, an isolation port and an output terminal; the first input terminal of the output bridge is connected to the output terminal of the first balanced power amplifier; the second input terminal of the output bridge is connected to the output terminal of the second balanced power amplifier; the isolation port of the output bridge serves as the second input terminal of the high-efficiency power amplifier module, connected to the output terminal of the harmonic control module; the output terminal of the output bridge serves as the output terminal of the high-efficiency power amplifier module, and is used to output the output signal.

[0013] In some embodiments, the high-efficiency power amplifier module further includes: a first input configuration network, a first output configuration network, a second input configuration network, and a second output configuration network; wherein,

[0014] The input end of the first balanced power amplifier is connected to the first output end of the input bridge via the first input configuration network; the input end of the second balanced power amplifier is connected to the second output end of the input bridge via the second input configuration network; the first input end of the output bridge is connected to the output end of the first balanced power amplifier via the first output configuration network; the second input end of the output bridge is connected to the output end of the second balanced power amplifier via the second output configuration network.

[0015] In some embodiments, the input bridge further includes a ground terminal; the high-efficiency power amplifier module further includes a ground resistor, one end of the ground resistor is connected to the ground terminal of the input bridge, and the other end is grounded.

[0016] In some embodiments, the harmonic control module includes:

[0017] A control power amplifier is provided, wherein an input end of the control power amplifier is connected to a first input signal, and an output end of the control power amplifier is connected to a second input end of the high-efficiency power amplifier module.

[0018] In some embodiments, the harmonic control module further includes: a third input configuration network and a third output configuration network; wherein,

[0019] The input end of the third input configuration network is used as the input end of the harmonic control module to receive the first input signal; the output of the third input configuration network is connected to the input end of the control amplifier;

[0020] The input end of the third output configuration network is connected to the output end of the control power amplifier; the output end of the third output configuration network serves as the output end of the harmonic control module and is connected to the second input end of the high-efficiency power amplifier module.

[0021] In some embodiments, the power amplifier harmonic control circuit further includes a high-pass filter; the second input terminal of the high-efficiency power amplifier module is connected to the output terminal of the harmonic control module via the high-pass filter.

[0022] In some embodiments, the power amplifier harmonic control circuit further includes a phase line connected to the second input terminal of the high-efficiency power amplifier module.

[0023] In a second aspect, the present application also provides a power amplifier device, comprising the power amplifier harmonic control circuit in the above-mentioned first aspect.

[0024] In the power amplifier device of the above embodiment, by combining the harmonic control module and the high-efficiency power amplifier module and inputting the harmonic control signal into the high-efficiency power amplifier module through the harmonic control module, the harmonics in the high-efficiency power amplifier module can be controlled, thereby achieving the purpose of improving the power amplifier efficiency and meeting the needs of different application environments.

[0025] In a third aspect, the present application further provides an electronic device, including a shell having a storage space inside; the power amplifier harmonic control circuit in the above-mentioned first aspect, the power amplifier harmonic control circuit is at least partially located in the storage space.

[0026] In the electronic device of the above embodiment, by combining the harmonic control module and the high-efficiency power amplifier module and inputting the harmonic control signal into the high-efficiency power amplifier module through the harmonic control module, the harmonics in the high-efficiency power amplifier module can be controlled, thereby achieving the purpose of improving the power amplifier efficiency and meeting the needs of different application environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a structural block diagram of a power amplifier harmonic control circuit provided in one embodiment of the present application;

[0029] Figure 2 A schematic diagram of the circuit principle of a power amplifier harmonic control circuit provided in one embodiment of the present application;

[0030] Figure 3 This is a structural block diagram of a power amplifier harmonic control circuit provided in another embodiment of the present application;

[0031] Figure 4 A schematic diagram of the circuit principle of a power amplifier harmonic control circuit provided in another embodiment of the present application.

[0032] Description of reference numerals:

[0033] 1. Harmonic control module; 2. High-efficiency power amplifier module; 21. Input bridge; 22. Output bridge; 23. First balanced power amplifier; 24. Second balanced power amplifier; 25. First input configuration network; 26. First output configuration network; 27. Second input configuration network; 28. Second output configuration network; 29. ​​Grounding resistor; 12. Control power amplifier unit; 11. Control power amplifier; 12. Third input configuration network; 13. Third output configuration network; 3. High-pass filter; 4. Phase line. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0037] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present application.

[0038] In this application, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present disclosure in a schematic manner. Although the illustrations only show components related to the present disclosure and are not drawn according to the number, shape and size of components in actual implementation, the type, quantity and proportion of each component in actual implementation may be changed arbitrarily, and the component layout type may also be more complicated.

[0040] High-efficiency power amplifiers need to control the output harmonics to achieve the purpose of improving efficiency; harmonic control has been widely used in high-efficiency power amplifiers; usually capacitors or microstrip matching are used to achieve harmonic control. However, with the development of technology, the use of capacitors or microstrip matching to achieve harmonic control has limited improvement in power amplifier efficiency and cannot meet the needs of different application environments.

[0041] LMBA amplifier (Load Modulation Balanced Amplifier) ​​is a new type of high-efficiency amplifier architecture developed on the basis of common bridge balanced amplifier. LMBA amplifier has been a research hotspot for high-efficiency broadband amplifiers in recent years; based on bridge amplifier, LMBA amplifier utilizes the isolated port of the output bridge and injects control signals into the isolated port to control the working state of the balanced amplifier.

[0042] See also Figure 1 The present application provides a power amplifier harmonic control circuit, which may include a harmonic control module 1 and a high-efficiency power amplifier module 2; wherein the harmonic control module 1 includes an input end and an output end; the input end of the harmonic control module 1 is used to receive a first input signal 2nd In (harmonic signal), the power harmonic control module 1 is used to generate a harmonic control signal based on the first input signal 2nd In, and the output end of the power harmonic control module 1 is used to output the harmonic control signal; the high-efficiency power amplifier module 2 may include a first input end, a second input end and an output end; the first input end of the high-efficiency power amplifier module 2 is used to receive a second input signal RF In; the second input end of the high-efficiency power amplifier module 2 is connected to the output end of the harmonic control module 1; the output end of the high-efficiency power amplifier module 2 is used to output an output signal RF Out.

[0043] In the power amplifier harmonic control circuit of the above embodiment, by combining the harmonic control module 1 and the high-efficiency power amplifier module 2, and inputting a harmonic control signal into the high-efficiency power amplifier module 2 through the harmonic control module 1, the harmonics in the high-efficiency power amplifier module 2 can be controlled, thereby achieving the purpose of improving the power amplifier efficiency and meeting the needs of different application environments.

[0044] In an example, see Figure 2The high-efficiency power amplifier module 2 may include: an input bridge 21, which may include an input end, a first output end and a second output end; the input end of the input bridge 21 is used as the input end of the high-efficiency power amplifier module 2 for receiving the second input signal RF In; a first balanced power amplifier 23, the input end of the first balanced power amplifier 23 is connected to the first output end of the input bridge 21; a second balanced power amplifier 24, the input end of the second balanced power amplifier 24 is connected to the second output end of the input bridge 21; an output bridge 22, which may include a first input end, a second input end, an isolation port and an output end; the first input end of the output bridge 22 is connected to the output end of the first balanced power amplifier 23; the second input end of the output bridge 22 is connected to the output end of the second balanced power amplifier 24; the isolation port of the output bridge 22 is used as the second input end of the high-efficiency power amplifier module 2, and is connected to the output end of the harmonic control module 1; the output end of the output bridge 22 is used as the output end of the high-efficiency power amplifier module 2 for outputting the output signal RF Out.

[0045] As an example, the second input signal RF In is a radio frequency input signal, and the output signal RF Out is a radio frequency output signal.

[0046] As an example, the input bridge 21 and the output bridge 22 can both be 3dB bridges; the high-efficiency power amplifier module 2 uses the input bridge 21 of the 3dB bridge as an input power divider, and uses the output bridge 22 of the 3dB bridge as an output combiner to combine two power amplifiers of the same size to achieve power improvement.

[0047] As an example, see Figure 2The high-efficiency power amplifier module 2 may further include: a first input configuration network 25, a first output configuration network 26, a second input configuration network 27 and a second output configuration network 28; wherein, the input end of the first balanced power amplifier 23 is connected to the first output end of the input bridge 21 via the first input configuration network 25, that is, the first input configuration network 25 is located between the input bridge 21 and the first balanced power amplifier 23, and the input end of the first input configuration network 25 is directly connected to the first output end of the input bridge 21, and the output end of the first input configuration network 25 is directly connected to the input end of the first balanced power amplifier 23; the input end of the second balanced power amplifier 24 is connected to the second output end of the input bridge 21 via the second input configuration network 27, that is, the second input configuration network 27 is located between the input bridge 21 and the second balanced power amplifier 24, and the input end of the second input configuration network 27 is directly connected to the second output end of the input bridge 21, and the second The output end of the input configuration network 27 is directly connected to the input end of the second balanced power amplifier 24; the first input end of the output bridge 22 is connected to the output end of the first balanced power amplifier 23 via the first output configuration network 26, that is, the first output configuration network 26 is located between the first balanced power amplifier 23 and the output bridge 22, and the input end of the first output configuration network 26 is directly connected to the output end of the first balanced power amplifier 23, and the output end of the first output configuration network 26 is directly connected to the first input end of the output bridge 22; the second input end of the output bridge 22 is connected to the output end of the second balanced power amplifier 24 via the second output configuration network 28, that is, the second output configuration network 28 is located between the second balanced power amplifier 27 and the output bridge 22, the input end of the second output configuration network 28 is directly connected to the output end of the second balanced power amplifier 27, and the output end of the second output configuration network 28 is directly connected to the second input end of the output bridge 22.

[0048] As an example, see Figure 2 , the input bridge 21 may further include a ground terminal; the high-efficiency power amplifier module 2 may further include a grounding resistor 29, one end of the grounding resistor 29 is connected to the ground terminal of the input bridge 21, and the other end of the grounding resistor 29 is grounded.

[0049] As an example, see Figure 2 The harmonic control module 1 may include: a control power amplifier 11 , an input end of the control power amplifier 11 is connected to the first input signal 2nd In, and an output end of the control power amplifier 11 is connected to the second input end of the high-efficiency power amplifier module 2 .

[0050] As an example, see Figure 2The harmonic control module 1 may further include: a third input configuration network 12 and a third output configuration network 13; wherein, the input end of the third input configuration network 12 serves as the input end of the harmonic control module 1, and is used to receive the first input signal 2nd In; the output of the third input configuration network 13 is connected to the input end of the control power amplifier 11; that is, the control power amplifier 11 is connected to the first input signal 2nd In via the third input configuration network 12; the input end of the third output configuration network 13 is connected to the output end of the control power amplifier 11; the output end of the third output configuration network 13 serves as the output end of the harmonic control module 1, and is connected to the second input end of the high-efficiency power amplifier module 2; that is, the control power amplifier 11 is connected to the second input end of the high-efficiency power amplifier module 2 via the third output configuration network 13.

[0051] Specifically, the output end of the third output configuration network 13 may be connected to the isolation port of the output bridge 22 .

[0052] More specifically, the harmonic control module 1 of the present application is combined with the high-efficiency power amplifier module 2, and the harmonic control signal is injected through the isolation port of the output bridge 22 in the high-efficiency power amplifier module 2 to control the harmonics of the balanced power amplifier, thereby achieving the purpose of improving efficiency.

[0053] In another example, combine Figure 1 to Figure 2 See also Figure 3 and Figure 4 The power amplifier harmonic control circuit may further include a high-pass filter 3 ; the second input end of the high-efficiency power amplifier module 2 is connected to the output end of the harmonic control module 1 via the high-pass filter 3 .

[0054] For details, please refer to Figure 4 The input end of the high-pass filter 3 can be connected to the output end of the third output configuration network 13 , and the output end of the high-pass filter 3 can be connected to the isolation port of the output bridge 22 .

[0055] As an example, the high-pass filter 3 is in a high-impedance state for the RF fundamental wave signal and in a passband state for the harmonic signal.

[0056] As an example, see Figure 3 and Figure 4 The power amplifier harmonic control circuit may further include a phase line 4, which is connected to the second input terminal of the high-efficiency power amplifier module 2. Specifically, the phase line 4 is connected to the isolation port of the output bridge 22.

[0057] In the present application, the second input signal RF In is input to the input end of the input bridge 21 in the high-efficiency power amplifier module 2, the isolation port of the output bridge 22 in the high-efficiency power amplifier module 2 is connected to the phase line 4, and is connected to the harmonic control module 1 through the high-pass filter 3. The harmonic control signal is injected into the isolation port of the output bridge 22 through the harmonic control module 1 and the high-pass filter 3, and is used to control the harmonics of the balanced power amplifier to improve efficiency.

[0058] As an example, the harmonic control module 1 and the high-efficiency power amplifier module 2 can constitute a load modulation balanced power amplifier (Load Modulation Balanced Amplifier, LMBA). It can be understood that the load modulation balanced power amplifier is a new type of high-efficiency power amplifier architecture developed on the basis of the common bridge balanced amplifier; the load modulation balanced power amplifier is a power amplifier technology used in wireless communication systems, which improves the efficiency and linearity of the power amplifier by introducing a modulation signal into the load of the amplifier output port. The working principle of the LMBA power amplifier is to add an adjustable impedance network to the output network of the amplifier, which can be adjusted according to the amplitude and phase of the modulation signal. By adjusting the impedance network, the amplifier can achieve load modulation of the output signal, thereby providing higher power amplification and better linearity. The LMBA power amplifier, based on the bridge balanced amplifier, utilizes the isolated port of the output bridge 22, and injects a harmonic control signal into the isolated port of the output bridge 22 via the harmonic control module 1 and the high-pass filter 3 to control the working state and harmonics of the balanced power amplifier, thereby improving efficiency. The first input configuration network 25, the first output configuration network 26, the second input configuration network 27 and the second output configuration network 28 can be used to adjust and form an impedance network, which is used to change the impedance of the ohmic terminals of the source and the load and convert them into the impedance characteristics required by the amplifier design.

[0059] As an example, the high-efficiency power amplifier module 2 can constitute a bridge Doherty power amplifier. It can be understood that the bridge Doherty is a common power amplifier architecture for mobile communication base stations, which has a simple and efficient structure and is easy to design and debug. The bridge Doherty is generated based on the bridge balanced power amplifier architecture. The difference between the bridge Doherty and the balanced power amplifier is that the isolation port of the output bridge 22 of the balanced power amplifier is connected to the load, while the isolation port of the output bridge 22 of the bridge Doherty power amplifier is connected to an open circuit or a short circuit line for adjusting the phase.

[0060] In one embodiment, please refer to Figure 1 to Figure 2 The present application also provides a power amplifier device, which may include: Figure 1 and Figure 2Power amplifier harmonic control circuit in the corresponding embodiment. In this embodiment, the power amplifier harmonic control circuit in the power amplifier device includes a harmonic control module 1 and a high-efficiency power amplifier module 2.

[0061] In the power amplifier device of the above embodiment, by combining the harmonic control module 1 and the high-efficiency power amplifier module 2, a harmonic control signal is input into the high-efficiency power amplifier module 2 through the harmonic control module 1, so that the harmonics in the high-efficiency power amplifier module 2 can be controlled, thereby achieving the purpose of improving the power amplifier efficiency and meeting the needs of different application environments.

[0062] In yet another embodiment, please continue to refer to Figure 3 to Figure 4 The present application also provides a power amplifier device, which may include: Figure 3 and Figure 4 Power amplifier harmonic control circuit in the corresponding embodiment. In this embodiment, the power amplifier harmonic control circuit in the power amplifier device includes a harmonic control module 1 , a high-efficiency power amplifier module 2 , a high-pass filter 3 and a phase line 4 .

[0063] In the power amplification device of the above embodiment, by combining the harmonic control module 1 and the high-efficiency power amplifier module 2, the second input end of the high-efficiency power amplifier module 2 is connected to the output end of the harmonic control module 1 via the high-pass filter 3, and the harmonic control signal is injected into the second input end of the high-efficiency power amplifier module 2 through the harmonic control module 1 and the high-pass filter 3, which is used to control the harmonics of the balanced power amplifier. The harmonics in the high-efficiency power amplifier module 2 can be controlled to achieve the purpose of improving the power amplifier efficiency, which can meet the needs of different application environments.

[0064] In one embodiment, please refer to Figure 1 and Figure 2 The present application also provides an electronic device, which may include a housing (not shown) having a storage space (not shown); Figure 1 and Figure 2 In the corresponding embodiment, the power amplifier harmonic control circuit is at least partially located in the accommodation space. Specifically, some modules or units in the power amplifier harmonic control circuit may be located in the accommodation space, or all modules and units in the entire power amplifier harmonic control circuit may be located in the accommodation space. In this embodiment, the power amplifier harmonic control circuit in the electronic device includes a harmonic control module 1 and a high-efficiency power amplifier module 2; one of the harmonic control module 1 and the high-efficiency power amplifier module 2 may be located in the accommodation space, or both of the harmonic control module 1 and the high-efficiency power amplifier module 2 may be located in the accommodation space.

[0065] In the electronic device of the above embodiment, by combining the harmonic control module 1 and the high-efficiency power amplifier module 2, a harmonic control signal is input into the high-efficiency power amplifier module 2 through the harmonic control module 1, so that the harmonics in the high-efficiency power amplifier module can be controlled, thereby achieving the purpose of improving the power amplifier efficiency and meeting the needs of different application environments.

[0066] Please continue reading Figure 3 and Figure 4 The present application also provides an electronic device, which may include a housing (not shown) having a storage space (not shown); Figure 3 and Figure 4 In the corresponding embodiment, the power amplifier harmonic control circuit is at least partially located in the accommodation space. Specifically, some modules or units in the power amplifier harmonic control circuit can be located in the accommodation space, or all modules and units in the entire power amplifier harmonic control circuit can be located in the accommodation space. In this embodiment, the power amplifier harmonic control circuit in the electronic device includes a harmonic control module 1, a high-efficiency power amplifier module 2, a high-pass filter 3 and a phase line 4; it can be that the harmonic control module 1, the high-efficiency power amplifier module 2, the high-pass filter 3 and the phase line 4 are partially located in the accommodation space, for example, it can be but not limited to the harmonic control module 1, the high-efficiency power amplifier module 2 and the high-pass filter 3 are located in the accommodation space, and the phase line 4 is located in the accommodation space; it can also be but not limited to the harmonic control module 1 and the high-efficiency power amplifier module 2 are located in the accommodation space, and the high-pass filter 3 and the phase line 4 are located in the accommodation space; it can also be but not limited to the harmonic control module 1 being located in the accommodation cavity, and the high-efficiency power amplifier module 2, the high-pass filter 3 and the phase line 4 being located in the accommodation space.

[0067] In other examples, the harmonic control module 1 , the high-efficiency power amplifier module 2 , the high-pass filter 3 and the phase line 4 may all be located in the accommodation space.

[0068] In the power amplification device of the above embodiment, by combining the harmonic control module 1 and the high-efficiency power amplifier module 2, the second input end of the high-efficiency power amplifier module 2 is connected to the output end of the harmonic control module 1 via the high-pass filter 3, and the harmonic control signal is injected into the second input end of the high-efficiency power amplifier module 2 through the harmonic control module 1 and the high-pass filter 3, which is used to control the harmonics of the balanced power amplifier. The harmonics in the high-efficiency power amplifier module 2 can be controlled to achieve the purpose of improving the power amplifier efficiency, which can meet the needs of different application environments.

[0069] Please note that the above embodiments are for illustrative purposes only and are not meant to limit the present disclosure.

[0070] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A power amplifier harmonic control circuit, characterized in that: It includes a harmonic control module, a high-efficiency power amplifier module and a phase line; wherein the harmonic control module includes an input end, an output end and a high-pass filter; the input end of the harmonic control module is used to receive a first input signal, the harmonic control module is used to generate a harmonic control signal based on the first input signal, and the output end of the harmonic control module is used to output the harmonic control signal; the first input signal includes a harmonic signal; the harmonic control signal is used to control the harmonics of the high-efficiency power amplifier module; the high-pass filter presents a high-impedance state to the radio frequency fundamental signal, and the high-pass filter is a passband state to the harmonic signal; The high-efficiency power amplifier module includes a first input terminal, a second input terminal, an output terminal and a configuration network; the first input terminal of the high-efficiency power amplifier module is used to receive a second input signal; the second input terminal of the high-efficiency power amplifier module is connected to the output terminal of the harmonic control module; the output terminal of the high-efficiency power amplifier module is used to output an output signal; the configuration network includes: a first input configuration network, a first output configuration network, a second input configuration network and a second output configuration network; the configuration network constitutes an impedance network, and the impedance network adjusts the impedance according to the harmonic control signal to provide the impedance characteristics required by the power amplifier; The phase line is connected to the second input terminal of the high-efficiency power amplifier module; The high-efficiency power amplifier module constitutes a bridge Doherty power amplifier; the harmonic control module and the high-efficiency power amplifier module constitute a load-modulated balanced power amplifier.

2. The power amplifier harmonic control circuit according to claim 1, characterized in that: The high-efficiency power amplifier module comprises: An input bridge, the input bridge comprising an input end, a first output end and a second output end; the input end of the input bridge serves as the input end of the high-efficiency power amplifier module; A first balanced power amplifier, wherein an input terminal of the first balanced power amplifier is connected to a first output terminal of the input bridge; A second balanced power amplifier, wherein an input terminal of the second balanced power amplifier is connected to a second output terminal of the input bridge; An output bridge, the output bridge comprising a first input terminal, a second input terminal, an isolation port and an output terminal; the first input terminal of the output bridge is connected to the output terminal of the first balanced power amplifier; the second input terminal of the output bridge is connected to the output terminal of the second balanced power amplifier; the isolation port of the output bridge serves as the second input terminal of the high-efficiency power amplifier module, connected to the output terminal of the harmonic control module; the output terminal of the output bridge serves as the output terminal of the high-efficiency power amplifier module, for outputting the output signal.

3. The power amplifier harmonic control circuit according to claim 2, characterized in that: The input end of the first balanced power amplifier is connected to the first output end of the input bridge via the first input configuration network; the input end of the second balanced power amplifier is connected to the second output end of the input bridge via the second input configuration network; the first input end of the output bridge is connected to the output end of the first balanced power amplifier via the first output configuration network; the second input end of the output bridge is connected to the output end of the second balanced power amplifier via the second output configuration network.

4. The power amplifier harmonic control circuit according to claim 2, characterized in that: The input bridge also includes a ground terminal; the high-efficiency power amplifier module also includes a ground resistor, one end of the ground resistor is connected to the ground terminal of the input bridge, and the other end is grounded.

5. The power amplifier harmonic control circuit according to claim 1, characterized in that: The harmonic control module comprises: A control power amplifier, wherein the input end of the control power amplifier is connected to the first input signal, and the output end of the control power amplifier is connected to the second input end of the high-efficiency power amplifier module.

6. The power amplifier harmonic control circuit according to claim 5, characterized in that: The harmonic control module further includes: a third input configuration network and a third output configuration network; wherein, The input end of the third input configuration network serves as the input end of the harmonic control module, and is used to receive the first input signal; the output of the third input configuration network is connected to the input end of the control amplifier.

7. The power amplifier harmonic control circuit according to claim 6, characterized in that: The input end of the third output configuration network is connected to the output end of the control power amplifier; the output end of the third output configuration network serves as the output end of the harmonic control module and is connected to the second input end of the high-efficiency power amplifier module.

8. The power amplifier harmonic control circuit according to any one of claims 1 to 7, characterized in that: The second input end of the high-efficiency power amplifier module is connected to the output end of the harmonic control module via the high-pass filter.

9. A power amplifier device, characterized in that: include: A power amplifier harmonic control circuit as described in any one of claims 1 to 8.

10. An electronic device, characterized in that: include: A housing having a storage space therein; The power amplifier harmonic control circuit described in any one of claims 1 to 8 is at least partially located in the accommodating space.

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