Radio frequency power amplifier circuit and radio frequency power supply equipment
By designing a radio frequency amplifier circuit including an input terminal, a first amplification component and a second amplification component in the radio frequency power supply device, passive power amplification of the radio frequency signal is realized, the problem of frequent use of DC power is solved, and the ability to flexibly adjust power is provided.
Patent Information
- Application Number
- CN202510111981.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-05-23
AI Technical Summary
In RF power supply equipment, power amplification of RF signals will lead to frequent use of DC power, and how to reduce the use of DC sources to achieve power amplification of RF signals has become a problem.
By designing a radio frequency power amplifier circuit, including an input terminal, a first amplification component and a second amplification component, these components are connected in series between the input terminal and ground, and outputting the amplified radio frequency signal through the output terminal, passive power amplification of the radio frequency signal is achieved.
This technology realizes passive power amplification of RF signals, reduces the use of DC power, saves components such as DC sources, and flexibly adjusts the power value of RF signals by adjusting the amplification factor.
Smart Images
Figure CN120034136A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of radio frequency technology, and in particular to a radio frequency power amplifier circuit and a radio frequency power supply device. Background Art
[0002] At present, with the development of RF power supply equipment, RF power supply equipment is increasingly used in various fields. When RF power supply equipment outputs RF power to various loads, the RF signal needs to be amplified multiple times. However, during the power amplification process, the RF power amplifier circuit needs corresponding DC power to amplify the power, that is, it needs to connect a DC source to achieve power amplification of the RF signal. Therefore, how to reduce the use of DC source, that is, reduce the use of DC power, and also achieve power amplification of RF signals has become a problem that needs to be considered. Summary of the invention
[0003] The present application provides a radio frequency power amplifier circuit and a radio frequency power supply device, which can realize passive power amplification of radio frequency signals.
[0004] In a first aspect, a radio frequency power amplifier circuit is provided, the radio frequency power amplifier circuit comprising an input end, a first amplifying component, a second amplifying component and an output end. The first amplifying component and the second amplifying component are connected in series between the input end and the ground, and the connection point between the first amplifying component and the second amplifying component is connected to the output end. The input end is used to input an initial radio frequency signal, the first amplifying component and the second amplifying component are used to cooperate in amplification and have a first amplification factor, the first amplifying component and the second amplifying component amplify the initial radio frequency signal input from the input end by the first amplification factor to obtain a target radio frequency signal, and output the target radio frequency signal through the output end. The first amplification factor is adjustable, and the power value of the target radio frequency signal changes according to the change of the first amplification factor.
[0005] In a possible implementation, the first amplifying component has a first inductance value, and the second amplifying component has an adjustable first capacitance value, so that the first amplifying component and the second amplifying component cooperate to have an adjustable first amplification factor. The first amplification factor is related to the angular frequency of the initial RF signal, the first inductance value, and the first capacitance value, and the first amplification factor changes according to the change of the first capacitance value.
[0006] In a possible implementation, the first amplifying component and the second amplifying component are sequentially connected in series between the input terminal and ground, and the first amplification factor is the reciprocal of the difference between a first constant and a first operating value, wherein the first operating value is the product of the square of the angular frequency of the initial RF signal, the first inductance value, and the first capacitance value.
[0007] In a possible implementation, the first operating value is less than the first constant. When the first capacitance value increases, the first operating value increases so that the difference between the first constant and the first operating value decreases, and the first amplification factor increases accordingly, so that the power value of the target RF signal increases; when the first capacitance value decreases, the difference between the first constant and the first operating value increases, and the first amplification factor decreases accordingly, so that the power value of the target RF signal decreases.
[0008] In a possible implementation, the second amplifying component and the first amplifying component are connected in series between the input terminal and ground in sequence, and the first amplification factor is the reciprocal of the difference between a first constant and a second operational value, wherein the second operational value is the reciprocal of the product of the square of the angular frequency of the initial RF signal, the first inductance value, and the first capacitance value.
[0009] In a possible implementation, the second operating value is less than the first constant, and when the first capacitance value decreases, the second operating value increases so that the difference between the first constant and the second operating value decreases, and the first amplification factor increases accordingly, so that the power value of the target RF signal increases; when the first capacitance value increases, the second operating value decreases so that the difference between the first constant and the second operating value increases, and the first amplification factor decreases accordingly, so that the power value of the target RF signal decreases.
[0010] In a possible implementation, the first amplifying component includes a first inductor, the inductance value of the first inductor is the first inductance value of the first amplifying component. The second amplifying component includes at least a first capacitor, the first capacitance value of the second amplifying component is related to the capacitance value of the first capacitor, and the first capacitor is an adjustable capacitor, so that the second amplifying component has an adjustable first capacitance value.
[0011] In a possible implementation, the second amplifying component further includes a second capacitor, the second capacitor is connected to the first capacitor, and the first capacitance value of the second amplifying component is a composite value of the capacitance values of the first capacitor and the second capacitor, wherein the capacitance value of the second capacitor is less than the first capacitance threshold.
[0012] In a possible implementation, the RF power amplifier circuit further includes a control unit, the control unit is connected to the second amplifying component, and the control unit is used to control and adjust the first capacitance value of the second amplifying component within a first adjustment range to adjust the first amplification factor. The first adjustment range is at least related to the first inductance value and the angular frequency of the initial RF signal.
[0013] In the second aspect, a radio frequency power supply device is also provided, and the radio frequency power supply device includes a radio frequency power amplifier circuit. The radio frequency power amplifier circuit includes an input end, a first amplifying component, a second amplifying component and an output end. The first amplifying component and the second amplifying component are connected in series between the input end and the ground, and the connection point between the first amplifying component and the second amplifying component is connected to the output end. The input end is used to input an initial radio frequency signal, the first amplifying component and the second amplifying component are used to cooperate in amplification and have a first amplification factor, the first amplifying component and the second amplifying component amplify the initial radio frequency signal input from the input end by the first amplification factor to obtain a target radio frequency signal, and output the target radio frequency signal through the output end. Among them, the first amplification factor is adjustable, and the power value of the target radio frequency signal changes according to the change of the first amplification factor.
[0014] The RF power amplifier circuit and RF power supply device of the present application, by providing a first amplifying component and a second amplifying component connected in series between an input terminal and a ground, and configuring the first amplifying component and the second amplifying component to cooperate in amplification, can amplify an initial RF signal inputted from the input terminal by a first amplification factor to obtain a target RF signal, and output the target RF signal through an output terminal, thereby realizing passive power amplification of the RF signal, and by adjusting the first amplifying factor of the first amplifying component and the second amplifying component, the power value of the target RF signal can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.
[0016] Figure 1 A block diagram of a radio frequency power amplifier circuit in some embodiments of the present application.
[0017] Figure 2 Another block diagram of a radio frequency power amplifier circuit in some embodiments of the present application.
[0018] Figure 3 This is a circuit diagram of a radio frequency power amplifier circuit in some embodiments of the present application.
[0019] Figure 4 FIG. 4 is a circuit diagram of a second amplifying component in some embodiments of the present application.
[0020] Figure 5 This is another block diagram of a radio frequency power amplifier circuit in some embodiments of the present application.
[0021] Figure 6It is a block diagram of a radio frequency power supply device in some embodiments of the present application.
[0022] Explanation of the reference numerals: 1000, RF power supply device, 10, RF power amplifier circuit, 100, input end, RF1, initial RF signal, 200, first amplifying component, L1, first inductor, 300, second amplifying component, C1, first capacitor, C2, second capacitor, RF2, target RF signal, 400, output end, 500, control unit, GND, ground. DETAILED DESCRIPTION
[0023] 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.
[0024] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0025] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.
[0026] In addition, the terms "including" and "having" and any variations thereof 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 necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or device.
[0027] See also Figure 1 , Figure 1 FIG. 1 is a block diagram of a radio frequency power amplifier circuit in some embodiments of the present application. Figure 1As shown, the present application provides a radio frequency power amplifier circuit 10, which includes an input terminal 100, a first amplifying component 200, a second amplifying component 300 and an output terminal 400. The first amplifying component 200 and the second amplifying component 300 are connected in series between the input terminal 100 and the ground GND, and the connection point between the first amplifying component 200 and the second amplifying component 300 is connected to the output terminal 400. The input terminal 100 is used to input an initial radio frequency signal RF1, the first amplifying component 200 and the second amplifying component 300 are used to cooperate in amplification and have a first amplification factor, the first amplifying component 200 and the second amplifying component 300 amplify the initial radio frequency signal RF1 input by the input terminal 100 by the first amplification factor to obtain a target radio frequency signal RF2, and output the target radio frequency signal RF2 through the output terminal 400. Among them, the first amplification factor is adjustable, and the power value of the target radio frequency signal RF2 changes according to the change of the first amplification factor.
[0028] Thus, the above-mentioned RF power amplifier circuit 10 in the present application, by setting a first amplifying component 200 and a second amplifying component 300 connected in series between the input terminal 100 and the ground GND, and configuring the first amplifying component 200 and the second amplifying component 300 to cooperate in amplification, can amplify the initial RF signal RF1 input by the input terminal 100 by a first amplification factor to obtain a target RF signal RF2, and output the target RF signal RF2 through the output terminal 400, thereby realizing passive power amplification of the RF signal, and by adjusting the first amplifying factor of the first amplifying component 200 and the second amplifying component 300, the power value of the target RF signal RF2 can be adjusted.
[0029] The first amplifying component 200 has a first inductance value, and the second amplifying component 300 has an adjustable first capacitance value, so that the first amplifying component 200 and the second amplifying component 300 cooperate to have an adjustable first amplification factor. The first amplification factor is related to the angular frequency of the initial radio frequency signal RF1, the first inductance value, and the first capacitance value, and the first amplification factor changes according to the change of the first capacitance value.
[0030] Thus, the above-mentioned RF power amplifier circuit 10 in the present application, by configuring the first amplifying component 200 to have a first inductance value and the second amplifying component 300 to have an adjustable first capacitance value, can make the first amplifying component 200 and the second amplifying component 300 cooperate to have an adjustable first amplification factor, and as the first capacitance value is adjusted, the first amplification factor can also change accordingly, thereby being able to adjust the power value of the target RF signal RF2.
[0031] like Figure 1As shown, the first amplifying component 200 and the second amplifying component 300 are connected in series between the input terminal 100 and the ground GND in sequence, and the first amplification factor is the reciprocal of the difference between the first constant and the first operation value, wherein the first operation value is the product of the square of the angular frequency of the initial RF signal RF1, the first inductance value, and the first capacitance value.
[0032] Thus, in the above-mentioned RF power amplifier circuit 10 in the present application, when the first amplifying component 200 and the second amplifying component 300 are sequentially connected in series between the input terminal 100 and the ground GND, the first amplification factor is the reciprocal of the difference between the first constant and the first operation value, and the first operation value is the product of the square of the angular frequency of the initial RF signal RF1, the first inductance value, and the first capacitance value.
[0033] Furthermore, the first operating value is less than the first constant. When the first capacitance value increases, the first operating value increases so that the difference between the first constant and the first operating value decreases, and the first amplification factor increases accordingly, so that the power value of the target RF signal RF2 increases; when the first capacitance value decreases, the difference between the first constant and the first operating value increases, and the first amplification factor decreases accordingly, so that the power value of the target RF signal RF2 decreases.
[0034] See also Figure 2 , Figure 2 FIG. 1 is another block diagram of a radio frequency power amplifier circuit in some embodiments of the present application. Figure 2 As shown, the second amplifying component 300 and the first amplifying component 200 are connected in series between the input terminal 100 and the ground GND in sequence, and the first amplification factor is the reciprocal of the difference between the first constant and the second operation value, wherein the second operation value is the reciprocal of the product of the square of the angular frequency of the initial RF signal RF1, the first inductance value, and the first capacitance value.
[0035] Thus, in the above-mentioned RF power amplifier circuit 10 in the present application, when the second amplifying component 300 and the first amplifying component 200 are sequentially connected in series between the input terminal 100 and the ground GND, the first amplification factor is the reciprocal of the difference between the first constant and the second operation value, and the second operation value is the reciprocal of the product of the square of the angular frequency of the initial RF signal RF1, the first inductance value, and the first capacitance value.
[0036] Furthermore, the second operating value is smaller than the first constant. When the first capacitance value decreases, the second operating value increases, so that the difference between the first constant and the second operating value decreases, and the first amplification factor increases accordingly, so that the power value of the target RF signal RF2 increases; when the first capacitance value increases, the second operating value decreases, so that the difference between the first constant and the second operating value increases, and the first amplification factor decreases accordingly, so that the power value of the target RF signal RF2 decreases.
[0037] In some embodiments, the first constant may be 1.
[0038] See also Figure 3 , Figure 3 FIG. 1 is a circuit diagram of a radio frequency power amplifier circuit in some embodiments of the present application. Figure 3 As shown, the first amplifying component 200 includes a first inductor L1, and the inductance value of the first inductor L1 is the first inductance value of the first amplifying component 200. The second amplifying component 300 includes at least a first capacitor C1, and the first capacitance value of the second amplifying component 300 is related to the capacitance value of the first capacitor C1, and the first capacitor C1 is an adjustable capacitor, so that the second amplifying component 300 has an adjustable first capacitance value.
[0039] The first inductor L1 may be connected between the input terminal 100 and the second amplifying component 300 and connected to the output terminal 400 , or the first inductor L1 may be connected between the second amplifying component 300 and the ground GND and connected to the output terminal 400 .
[0040] The first capacitor C1 may be connected between the first amplifying component 200 and the ground GND and connected to the output terminal 400 , or the first capacitor C1 may be connected between the input terminal 100 and the first amplifying component 200 and connected to the output terminal 400 .
[0041] Thus, the above-mentioned RF power amplifier circuit 10 in the present application, by setting the first amplifying component 200 to include the first inductor L1, so that the first amplifying component 200 has a first inductance value, and by setting the second amplifying component 300 to include at least the first capacitor C1, so that the second amplifying component 300 has an adjustable capacitance value.
[0042] Please also read Figure 4 , Figure 4 FIG. 1 is a circuit diagram of a second amplifying component in some embodiments of the present application. Figure 3 , Figure 4 As shown, the second amplifying component 300 further includes a second capacitor C2, which is connected to the first capacitor C1, and the first capacitance value of the second amplifying component 300 is a composite value of the capacitance values of the first capacitor C1 and the second capacitor C2. The capacitance value of the second capacitor C2 is less than the first capacitance threshold.
[0043] Among them, the second capacitor C2 and the first capacitor C1 can be connected in series between the first amplifying component 200 and the ground GND, and the second capacitor C2 is connected to the output end 400, or the second capacitor C2 and the first capacitor C1 can also be connected in series between the input end 100 and the first amplifying component 200, and the first capacitor C1 is connected to the output end 400.
[0044] Therefore, the above-mentioned RF power amplifier circuit 10 in the present application, by setting the second amplifying component 300 to also include a second capacitor C2, and the second capacitor C2 is connected to the first capacitor C1, so that when the capacitance value of the first capacitor C1 changes, the first capacitance value of the second amplifying component 300 can more easily obtain the required capacitance value, thereby making it easier for the first amplification factor to obtain the required amplification factor, thereby improving the accuracy of the first amplification factor adjustment.
[0045] The first capacitance threshold may be related to the capacitance value of the first capacitor C1, for example, the first capacitance threshold may be 30%, 40%, 50% of the capacitance value of the first capacitor C1, etc. Specifically, when the capacitance value of the second capacitor C2 is greater than or equal to the first capacitance threshold, it is difficult to improve the accuracy of adjusting the first amplification factor, and when the capacitance value of the second capacitor C2 is less than the first capacitance threshold, the accuracy of adjusting the first amplification factor can be effectively improved.
[0046] Further, when the capacitance value of the first capacitor C1 changes by the preset capacitance value, the smaller the capacitance value of the second capacitor C2 is, the smaller the change multiple of the first amplification factor is.
[0047] See also Figure 5 , Figure 5 FIG. 2 is another block diagram of a radio frequency power amplifier circuit in some embodiments of the present application. Figure 5 As shown, the RF power amplifier circuit 10 further includes a control unit 500, the control unit 500 is connected to the second amplifying component 300, and the control unit 500 is used to control and adjust the first capacitance value of the second amplifying component 300 within a first adjustment range to adjust the first amplification factor. The first adjustment range is at least related to the first inductance value and the angular frequency of the initial RF signal RF1.
[0048] Thus, the above-mentioned RF power amplifier circuit 10 in the present application, by configuring the control unit 500, can adjust the first capacitance value of the second amplifying component 300 within the first adjustment range to adjust the first amplification factor, thereby adjusting the power value of the target RF signal RF2.
[0049] In some embodiments, the first adjustment range is also related to the capacitance value of the second capacitor C2 and a first constant, wherein the first constant may be 1.
[0050] Furthermore, the capacitance of the first capacitor C1 is greater than or equal to zero and is less than the ratio of the first constant to the third operation value, wherein the third operation value is the product of the square of the angular frequency of the initial RF signal RF1 and the first inductance.
[0051] Furthermore, the minimum value of the first adjustment range is a composite value of the minimum capacitance value of the first capacitor C1 and the capacitance value of the second capacitor C2, and the maximum value of the first adjustment range is a composite value of the maximum capacitance value of the first capacitor C1 and the capacitance value of the second capacitor C2.
[0052] The control unit 500 may be connected to the first capacitor C1 to adjust the capacitance value of the first capacitor C1 , thereby adjusting the first capacitance value of the second amplifying component 300 .
[0053] In some embodiments, the control unit 500 may include a controller and a rotating motor. The controller is mainly used to control the rotating motor to control and adjust the first capacitance value of the second amplifying component 300 within a first adjustment range. The rotating motor is mainly used to adjust the first capacitance value of the second amplifying component 300, and specifically to adjust the capacitance value of the first capacitor C1.
[0054] In some embodiments, the controller can be a general-purpose processor such as a central processing unit (CPU), or a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate logic devices, transistor logic devices and other logic control devices, or a microprocessor such as a micro control unit (MCU).
[0055] The RF power amplifier circuit 10 of the present application, through the above-mentioned structure, can not only realize passive power amplification of the RF signal, save the use of DC power, and save components such as DC sources, but also can flexibly adjust the first amplification factor to flexibly adjust the power value of the target RF signal RF2 to achieve controllable power amplification.
[0056] See also Figure 6 , Figure 6 FIG. 1 is a block diagram of a radio frequency power supply device in some embodiments of the present application. Figure 6 As shown, the present application further provides a radio frequency power supply device 1000, and the radio frequency power supply device 1000 includes the radio frequency power amplifier circuit 10 in any of the aforementioned embodiments.
[0057] Please refer again Figure 1 .like Figure 1As shown, the RF power amplifier circuit 10 includes an input terminal 100, a first amplifying component 200, a second amplifying component 300 and an output terminal 400. The first amplifying component 200 and the second amplifying component 300 are connected in series between the input terminal 100 and the ground GND, and the connection point between the first amplifying component 200 and the second amplifying component 300 is connected to the output terminal 400. The input terminal 100 is used to input an initial RF signal RF1, the first amplifying component 200 and the second amplifying component 300 are used to cooperate in amplification and have a first amplification factor, the first amplifying component 200 and the second amplifying component 300 amplify the initial RF signal RF1 input by the input terminal 100 by the first amplification factor to obtain a target RF signal RF2, and output the target RF signal RF2 through the output terminal 400. Among them, the first amplification factor is adjustable, and the power value of the target RF signal RF2 changes according to the change of the first amplification factor.
[0058] The more specific structure of the RF power amplifier circuit 10 can refer to the relevant content of the RF power amplifier circuit 10 in any of the aforementioned embodiments, which will not be repeated here.
[0059] In some embodiments, the RF power supply device 1000 may further include a crystal oscillator source, which may be connected to the input terminal 100 to input an initial RF signal RF1.
[0060] In some embodiments, the output terminal 400 may be connected to a load to output the target radio frequency signal RF2 to the load, wherein the load may be a plasma load.
[0061] The RF power amplifier circuit 10 and RF power supply device 1000 of the present application, through the above-mentioned structure, can not only realize passive power amplification of RF signals, save the use of DC power, and save components such as DC sources, but also can flexibly adjust the first amplification factor to flexibly adjust the power value of the target RF signal RF2 to realize controllable power amplification.
[0062] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application; in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A radio frequency power amplifier circuit, characterized in that: It includes an input end, a first amplifying component, a second amplifying component and an output end; The first amplifying component and the second amplifying component are connected in series between the input terminal and the ground, and a connection point between the first amplifying component and the second amplifying component is connected to the output terminal; The input end is used to input an initial RF signal, the first amplifying component and the second amplifying component are used to cooperate in amplification and have a first amplification factor, the first amplifying component and the second amplifying component amplify the initial RF signal input from the input end by the first amplification factor to obtain a target RF signal, and output the target RF signal through the output end; The first amplification factor is adjustable, and the power value of the target radio frequency signal changes according to the change of the first amplification factor.
2. The radio frequency power amplifier circuit according to claim 1, characterized in that: The first amplifying component has a first inductance value, and the second amplifying component has an adjustable first capacitance value, so that the first amplifying component and the second amplifying component cooperate to have the adjustable first amplification factor; The first amplification factor is related to the angular frequency of the initial RF signal, the first inductance value, and the first capacitance value, and the first amplification factor changes according to a change in the first capacitance value.
3. The radio frequency power amplifier circuit according to claim 2, characterized in that: The first amplifying component and the second amplifying component are connected in series between the input terminal and the ground in sequence, and the first amplification factor is the reciprocal of the difference between a first constant and a first operation value, wherein the first operation value is the product of the square of the angular frequency of the initial RF signal, the first inductance value, and the first capacitance value.
4. The radio frequency power amplifier circuit according to claim 3, characterized in that: The first operating value is less than the first constant. When the first capacitance value increases, the first operating value increases so that the difference between the first constant and the first operating value decreases, and the first amplification factor increases accordingly, so that the power value of the target RF signal increases; when the first capacitance value decreases, the difference between the first constant and the first operating value increases, and the first amplification factor decreases accordingly, so that the power value of the target RF signal decreases.
5. The radio frequency power amplifier circuit according to claim 2, characterized in that: The second amplifying component and the first amplifying component are connected in series between the input terminal and the ground in sequence, and the first amplification factor is the reciprocal of the difference between a first constant and a second operation value, wherein the second operation value is the reciprocal of the product of the square of the angular frequency of the initial RF signal, the first inductance value, and the first capacitance value.
6. The radio frequency power amplifier circuit according to claim 5, characterized in that: The second operating value is smaller than the first constant. When the first capacitance value decreases, the second operating value increases so that the difference between the first constant and the second operating value decreases, and the first amplification factor increases accordingly, so that the power value of the target RF signal increases; when the first capacitance value increases, the second operating value decreases so that the difference between the first constant and the second operating value increases, and the first amplification factor decreases accordingly, so that the power value of the target RF signal decreases.
7. The radio frequency power amplifier circuit according to claim 2, characterized in that: The first amplifying component includes a first inductor, and the inductance value of the first inductor is the first inductance value of the first amplifying component; The second amplifying component at least includes a first capacitor, the first capacitance value of the second amplifying component is related to the capacitance value of the first capacitor, and the first capacitor is an adjustable capacitor, so that the second amplifying component has an adjustable first capacitance value.
8. The radio frequency power amplifier circuit according to claim 7, characterized in that: The second amplifying component further includes a second capacitor, the second capacitor is connected to the first capacitor, and the first capacitance value of the second amplifying component is a composite value of the capacitance values of the first capacitor and the second capacitor; The capacitance value of the second capacitor is smaller than the first capacitance threshold.
9. The radio frequency power amplifier circuit according to claim 2, characterized in that: The RF power amplifier circuit further includes a control unit, the control unit is connected to the second amplifying component, and the control unit is used to control and adjust the first capacitance value of the second amplifying component within a first adjustment range to adjust the first amplification factor; The first adjustment range is at least related to the first inductance value and the angular frequency of the initial RF signal.
10. A radio frequency power supply device, characterized in that: Comprising the radio frequency power amplifier circuit as described in any one of claims 1-9.