LC matching method, computer storage medium, electronic device

By finding the intersection point and calculating the values ​​of inductors and capacitors in the circuit design, the problem of low impedance matching efficiency in the prior art is solved, and rapid impedance matching and circuit development efficiency are improved.

CN114065683BActive Publication Date: 2025-12-30CHENGDU HUADA JIUTIAN TECH CO LTD
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Patent Information

Application Number
CN202111369626.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-11-16
Publication Date
2025-12-30
Estimated Expiration
2041-11-16

AI Technical Summary

Technical Problem

Existing technologies make it difficult to quickly determine impedance matching schemes, resulting in low impedance matching efficiency and affecting circuit development efficiency.

Method used

By finding the intersection of the first impedance circle and the first admittance circle, and the intersection of the second impedance circle and the second admittance circle, and combining the reflection coefficients of the source and load ends, alternative LC matching methods are determined, and the values ​​of inductors and capacitors are calculated to quickly determine the impedance matching scheme.

Benefits of technology

It improves impedance matching efficiency and circuit development efficiency, and optimizes the circuit design process by quickly determining impedance matching schemes.

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Abstract

Embodiments of the present application provide an LC matching method, a computer storage medium and an electronic device. The LC matching method comprises: obtaining a first intersection point of a first impedance circle and a first admittance circle, and a second intersection point of a second impedance circle and a second admittance circle, wherein the first impedance circle and the first admittance circle are a circle diagram corresponding to a source end, and the second impedance circle and the second admittance circle are a circle diagram corresponding to a load end; determining an alternative LC matching mode from the source end to the load end according to coordinates of the first intersection point and coordinates of the second intersection point; and calculating values of inductors and capacitors in each alternative LC matching mode according to coordinates of a source impedance point, coordinates of the first intersection point, coordinates of the second intersection point and coordinates of a load impedance point, wherein the source impedance point corresponds to the source end, and the load impedance point corresponds to the source end. Thus, a scheme of impedance matching is quickly determined, and the efficiency of impedance matching and the development efficiency of a circuit are improved.
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Description

Technical Field

[0001] This application relates to the field of circuit technology, specifically to an LC matching method, a computer storage medium, and an electronic device. Background Technology

[0002] In circuit design, impedance matching is required to ensure that all high-frequency microwave signals can be transmitted from the source to the load, minimizing signal reflection back to the source. However, current technologies struggle to quickly determine impedance matching solutions, resulting in low matching efficiency and impacting circuit development efficiency. Summary of the Invention

[0003] This application provides an LC matching method, a computer storage medium, and an electronic device to overcome or alleviate the aforementioned technical problems in the prior art.

[0004] The technical solution adopted in this application is:

[0005] In a first aspect, embodiments of this application provide an LC matching method, which includes:

[0006] Find the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle. The first impedance circle and the first admittance circle are the circle diagrams corresponding to the source end, and the second impedance circle and the second admittance circle are the circle diagrams corresponding to the load end.

[0007] Based on the coordinates of the first intersection point and the coordinates of the second intersection point, determine the alternative LC matching method from the source end to the load end;

[0008] Based on the coordinates of the source impedance point, the coordinates of the first intersection point, the coordinates of the second intersection point, and the coordinates of the load impedance point, calculate the inductor and capacitor values ​​for each alternative LC matching method, wherein the source impedance point corresponds to the source end, and the load impedance point corresponds to the source end.

[0009] Optionally, in one embodiment of this application, before determining the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle, the method further includes: determining the source impedance point corresponding to the source end marked on the Smith chart, and the load impedance point corresponding to the load end marked on the Smith chart.

[0010] Optionally, in one embodiment of this application, determining the source impedance point corresponding to the source end marked on the Smith chart, and the load impedance point corresponding to the load end marked on the Smith chart, includes:

[0011] Based on the source-end reflection coefficient, determine the source impedance point corresponding to the source end marked on the Smith chart;

[0012] Based on the reflection coefficient at the load end, the load impedance point corresponding to the load end is marked on the Smith chart.

[0013] Optionally, in one embodiment of this application, before determining the source impedance point corresponding to the source end marked on the Smith chart based on the source end reflection coefficient, the method includes: calculating the source end reflection coefficient based on the source end impedance and the system impedance.

[0014] Optionally, in one embodiment of this application, the step of determining the load impedance point corresponding to the load end marked on the Smith chart based on the load end reflection coefficient includes: calculating the load end reflection coefficient according to the load end impedance and the system impedance.

[0015] Optionally, in one embodiment of this application, before determining the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle, the method further includes: drawing the first impedance circle and the first admittance circle corresponding to the source end, and the second impedance circle and the second admittance circle corresponding to the load end.

[0016] Optionally, in one embodiment of this application, drawing the first impedance circle and the first admittance circle corresponding to the source end, and the second impedance circle and the second admittance circle corresponding to the load end, includes: drawing the first impedance circle and the first admittance circle corresponding to the source end based on the source impedance point corresponding to the source end, and drawing the first impedance circle and the first admittance circle corresponding to the source end based on the load impedance point corresponding to the load end.

[0017] Optionally, in one embodiment of this application, determining the alternative LC matching method from the source end to the load end based on the coordinates of the first intersection point and the coordinates of the second intersection point includes: determining the alternative LC matching method from the source end to the load end based on the coordinates of the first intersection point on the Smith chart and the coordinates of the second intersection point on the Smith chart.

[0018] Optionally, in one embodiment of this application, the step of calculating the inductor and capacitor values ​​for each alternative LC matching method based on the coordinates of the source impedance point, the coordinates of the first intersection point, the coordinates of the second intersection point, and the coordinates of the load impedance point includes:

[0019] Based on the coordinates of the source impedance point and the coordinates of the first intersection point, calculate the first normalized impedance value for each alternative LC matching method;

[0020] Based on the coordinates of the first intersection point and the coordinates of the load impedance point, calculate the second normalized impedance value for each alternative LC matching mode;

[0021] Calculate the inductor and capacitor values ​​for each alternative LC matching method based on the first normalized impedance value and the second normalized impedance value.

[0022] Optionally, in one embodiment of this application, after calculating the inductor and capacitor values ​​for each alternative LC matching method based on the coordinates of the source impedance point, the coordinates of the first intersection point, the coordinates of the second intersection point, and the coordinates of the load impedance point, the process includes:

[0023] Remove negative values ​​from the inductor and capacitor values, and establish a mapping relationship between each alternative LC matching method and the corresponding inductor and capacitor values.

[0024] Optionally, in one embodiment of this application, after removing negative values ​​from the inductor and capacitor values ​​and establishing a mapping relationship between each alternative LC matching method and the corresponding inductor and capacitor values, the process includes: generating a schematic display chart based on the mapping relationship between all alternative LC matching methods and the corresponding inductor and capacitor values.

[0025] Secondly, embodiments of this application provide a computer storage medium storing a computer executable program, which is run to implement any of the methods described in the embodiments of this application.

[0026] Thirdly, embodiments of this application provide an electronic device, the electronic device including a memory and a processor, the memory being used to store a computer-executable program, and the processor being used to run the computer-executable program to implement any of the methods described in the embodiments of this application.

[0027] In the technical solution of this application embodiment, the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle are obtained. The first impedance circle and the first admittance circle are circular diagrams corresponding to the source end, and the second impedance circle and the second admittance circle are circular diagrams corresponding to the load end. Based on the coordinates of the first intersection point and the second intersection point, alternative LC matching methods from the source end to the load end are determined. Based on the coordinates of the source impedance point, the coordinates of the first intersection point, the coordinates of the second intersection point, and the coordinates of the load impedance point, the inductor and capacitor values ​​under each alternative LC matching method are calculated. The source impedance point corresponds to the source end, and the load impedance point corresponds to the source end. This quickly determines the impedance matching scheme, improves impedance matching efficiency, and enhances circuit development efficiency. Attached Figure Description

[0028] Figure 1 This is a flowchart illustrating an LC matching method according to an embodiment of this application;

[0029] Figure 2 This is a flowchart illustrating an LC matching method according to an embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0031] To make the technical problems, technical solutions and advantages of this application clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0032] In the technical solution of this application embodiment, the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle are obtained. The first impedance circle and the first admittance circle are circular diagrams corresponding to the source end, and the second impedance circle and the second admittance circle are circular diagrams corresponding to the load end. Based on the coordinates of the first intersection point and the second intersection point, alternative LC matching methods from the source end to the load end are determined. Based on the coordinates of the source impedance point, the coordinates of the first intersection point, the coordinates of the second intersection point, and the coordinates of the load impedance point, the inductor and capacitor values ​​under each alternative LC matching method are calculated. The source impedance point corresponds to the source end, and the load impedance point corresponds to the source end. This quickly determines the impedance matching scheme, improves impedance matching efficiency, and enhances circuit development efficiency.

[0033] Figure 1 This is a flowchart illustrating an LC matching method according to an embodiment of this application; as shown Figure 1 As shown, it includes the following steps:

[0034] S101. Find the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle;

[0035] In this embodiment, the first impedance circle and the first admittance circle are circular diagrams corresponding to the source end, and the second impedance circle and the second admittance circle are circular diagrams corresponding to the load end.

[0036] Specifically, in this embodiment, the specific coordinate systems of the first impedance circle, the first admittance circle, the second impedance circle, and the second admittance circle are not particularly limited.

[0037] Specifically, in this embodiment, the first impedance circle and the first admittance circle are established based on the same first coordinate system, and the second impedance circle and the second admittance circle are established based on the same second coordinate system.

[0038] Of course, in other embodiments, if the coordinate systems established by the first impedance circle, the first admittance circle, the second impedance circle and the second admittance circle are different, they can also be converted to each other based on coordinate changes.

[0039] Preferably, the first coordinate system and the second coordinate system are the same to reduce the amount of data processing and thus save resources.

[0040] In this embodiment, the number of the first intersection points and the number of the second intersection points are determined as needed and are not specifically limited. Of course, in order to save computing power and resources, some of the first intersection points and the second intersection points can also be selected to participate in the processing of this application scheme.

[0041] S102. Based on the coordinates of the first intersection point and the coordinates of the second intersection point, determine the alternative LC matching method from the source end to the load end;

[0042] In this embodiment, the coordinates of the first intersection point and the second intersection point indirectly reflect the impedance of the source end and the load end. Therefore, based on the coordinates of the first intersection point and the second intersection point, the alternative LC matching methods can be determined. These alternative LC matching methods include, for example, the series and parallel connection of inductors and capacitors, such as inductors in parallel, inductors in parallel, and capacitors in parallel. This is equivalent to quickly determining various possible LC matching methods directly based on the first intersection point and the second intersection point.

[0043] S103. Based on the coordinates of the source impedance point, the coordinates of the first intersection point, the coordinates of the second intersection point, and the coordinates of the load impedance point, calculate the inductor and capacitor values ​​for each alternative LC matching method.

[0044] Wherein, the source impedance point corresponds to the source end, and the load impedance point corresponds to the source end.

[0045] It should be noted here that the coordinate system of the first intersection point is preferably the same as the coordinate system of the first impedance circle and the first admittance circle, and the coordinate system of the second intersection point is preferably the same as the coordinate system of the second impedance circle and the second admittance circle, so as to avoid excessive computing power consumption due to coordinate transformation caused by different coordinate systems.

[0046] Figure 2 This is a flowchart illustrating an LC matching method according to an embodiment of this application; as shown Figure 1 As shown, it includes the following steps:

[0047] S201. Determine the source impedance point corresponding to the source end marked on the Smith chart, and the load impedance point corresponding to the load end marked on the Smith chart.

[0048] Specifically, determining the source impedance point corresponding to the source end marked on the Smith chart, and the load impedance point corresponding to the load end marked on the Smith chart, includes:

[0049] S211. Based on the source-end reflection coefficient, determine the source impedance point corresponding to the source end marked on the Smith chart;

[0050] S221. Based on the reflection coefficient at the load end, determine the load impedance point corresponding to the load end marked on the Smith chart.

[0051] Based on the source-end reflection coefficient and the load-end reflection coefficient respectively, the source impedance point and the load impedance point can be quickly marked on the Smith chart.

[0052] Specifically, in this embodiment, before determining the source impedance point corresponding to the source end marked on the Smith chart based on the source end reflection coefficient, the method may further include: calculating the source end reflection coefficient based on the source end impedance and the system impedance. This step of calculating the source end reflection coefficient is included in step S201.

[0053] In this embodiment, the system impedance is a pre-set impedance, which can be obtained based on empirical values ​​or machine learning methods. The system impedance is the impedance of the overall circuit using the LC matching.

[0054] Specifically, in this embodiment, determining the load impedance point corresponding to the load end marked on the Smith chart based on the load end reflection coefficient includes: calculating the load end reflection coefficient according to the load end impedance and the system impedance. This step of calculating the load end reflection coefficient can also be included in step S201.

[0055] Specifically, the load-side reflection coefficient and the source-side reflection coefficient can be calculated using the following formula (1).

[0056] Gamma = (Z - Z0) / (Z + Z0), where Gamma is the reflection coefficient at the load end or the reflection coefficient at the source end, Z is the impedance at the source end or the load end, and Z0 is the system impedance.

[0057] Furthermore, there is no strict timing requirement between the steps of calculating the reflection coefficient at the load end and the steps of calculating the reflection coefficient at the source end, but they can be executed before steps S211 and S221 respectively.

[0058] S202. Find the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle;

[0059] In this embodiment, considering that in some scenarios the first impedance circle and the first admittance circle, and the second impedance circle and the second admittance circle have already been drawn, then execution step S202 can be performed. However, in some application scenarios, if the first impedance circle and the first admittance circle, and the second impedance circle and the second admittance circle have not been drawn, then before determining the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle, the following steps are performed: drawing the first impedance circle and the first admittance circle corresponding to the source end, and the second impedance circle and the second admittance circle corresponding to the load end.

[0060] It should be noted here that drawing the first impedance circle and the first admittance circle corresponding to the source end, and the second impedance circle and the second admittance circle corresponding to the load end can be performed after step S201 and before step S202.

[0061] Specifically, the first impedance circle and the first admittance circle corresponding to the source end, and the second impedance circle and the second admittance circle corresponding to the load end can be drawn based on the aforementioned Smith chart tool, thus improving the efficiency of LC matching.

[0062] Furthermore, in this embodiment, drawing the first impedance circle and the first admittance circle corresponding to the source end, and the second impedance circle and the second admittance circle corresponding to the load end, includes: drawing the first impedance circle and the first admittance circle corresponding to the source end based on the source impedance point corresponding to the source end, and drawing the first impedance circle and the first admittance circle corresponding to the source end based on the load impedance point corresponding to the load end.

[0063] The following details the process in step S202 of converting the first impedance circle and the first admittance circle into vector representations, and converting the second impedance circle and the second admittance circle into vector representations, and obtaining the first intersection point and the second intersection point.

[0064] Determine the distance between the centers of the first impedance circle and the first admittance circle, and the midpoint of the line connecting the centers of the first impedance circle and the first admittance circle.

[0065] A first vector and a second vector are generated based on the center distance of the circles, and the first vector and the second vector are orthogonal; and a coordinate system is obtained based on the intersection point of the first vector and the second vector.

[0066] In the coordinate system for finding the intersection point, find the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle.

[0067] Assuming that in a rectangular coordinate system, the first impedance circle and the second impedance circle are represented by formula (3):

[0068] (x-x1)^2+(y-y1)^2=r1^2 (3)

[0069] Assuming that in a rectangular coordinate system, the first admittance circle and the second admittance circle are represented by formula (4):

[0070] (x-x²)²+(y-y²)²=r²² (4)

[0071] The coordinates of the midpoint are:

[0072] ((x1+x2) / 2,(y1+y2) / 2)

[0073] The value of the center distance:

[0074]

[0075] Establish a new coordinate system with the line connecting the centers of the two circles as the X-axis and the center of each circle as the origin. Let vector a be the unit vector of the X-axis and vector b be the unit vector of the Y-axis. We can then obtain:

[0076] The first vector is:

[0077]

[0078] The second vector is:

[0079]

[0080] The first impedance circle and the second impedance circle can be represented by formula (5) in the new coordinate system:

[0081]

[0082] The first admittance circle and the second admittance circle are represented by formula (6):

[0083]

[0084] Combine equations (5) and (6) simultaneously.

[0085] The coordinates of the intersection point are represented in the intersection point coordinate system as follows:

[0086]

[0087] Transforming the intersection point represented by the above formula (7) into a rectangular coordinate system, we get:

[0088]

[0089] Based on this, the coordinates of the first or second intersection point in the intersection point coordinate system or the rectangular coordinate system are obtained.

[0090] The specific coordinate system used for representation depends on the application scenario and can be flexibly chosen.

[0091] S203. Based on the coordinates of the first intersection point and the coordinates of the second intersection point, determine the alternative LC matching method from the source end to the load end;

[0092] In this embodiment, step S203, determining the alternative LC matching method from the source end to the load end based on the coordinates of the first intersection point and the coordinates of the second intersection point, includes: determining the alternative LC matching method from the source end to the load end based on the coordinates of the first intersection point on the Smith chart and the coordinates of the second intersection point on the Smith chart.

[0093] S204. Based on the coordinates of the source impedance point, the coordinates of the first intersection point, the second intersection point, and the coordinates of the load impedance point, calculate the inductor and capacitor values ​​for each alternative LC matching method.

[0094] In this embodiment, step S204 may include:

[0095] S214. Based on the coordinates of the source impedance point and the coordinates of the first intersection point, calculate the first normalized impedance value for each alternative LC matching method.

[0096] S224. Calculate the second normalized impedance value for each alternative LC matching mode based on the coordinates of the first intersection point and the coordinates of the load impedance point.

[0097] S234. Calculate the inductor and capacitor values ​​for each alternative LC matching mode based on the first normalized impedance value and the second normalized impedance value.

[0098] In this embodiment, the calculation of inductance and capacitor values ​​is quickly achieved through the above-described normalization process, thereby improving the efficiency of LC matching.

[0099] The following details the normalization process performed in this application. The calculation of the first normalized impedance value is used as an example, while the process for calculating the second normalized impedance value is similar.

[0100] The formula for calculating the first normalized impedance value is shown in (8):

[0101] z = (1 + Gamma) / (1 - Gamma), where z is the first normalized impedance and Gamma is the reflection coefficient; calculate the impedance from the load end to the intersection point according to the formula and make the difference; the difference is the impedance value corresponding to the added component.

[0102] Substitute the impedance difference into the following inductor-capacitor impedance calculation formula to calculate the corresponding inductance and capacitance values.

[0103] The formula for calculating capacitive reactance is as follows:

[0104] Xc = 1 / (2πf C) First normalized impedance value = 1 / (2 × π × frequency × capacitance value)

[0105] Inductive reactance calculation formula:

[0106] XL = 2πfL First normalized impedance value = 2 × π × frequency × inductance value.

[0107] When calculating the inductor and capacitor values ​​under the second normalized impedance value, Xc and XL in the above formula are the second normalized impedance values.

[0108] Furthermore, in the above Figure 1 or Figure 2 Based on the aforementioned embodiment, after calculating the inductor and capacitor values ​​for each alternative LC matching method according to the coordinates of the source impedance point, the coordinates of the first intersection point, the coordinates of the second intersection point, and the coordinates of the load impedance point, the following may be further included:

[0109] Remove negative values ​​from the inductor and capacitor values, and establish a mapping relationship between each alternative LC matching method and the corresponding inductor and capacitor values.

[0110] Considering the calculated inductor and capacitor values, and the fact that the inductors and capacitors actually used in the circuit cannot have negative values, the negative values ​​in the inductor and capacitor values ​​are removed to correspond to the actual LC matching, while also reducing resource consumption.

[0111] Furthermore, after removing negative values ​​from the inductor and capacitor values ​​and establishing a mapping relationship between each alternative LC matching method and the corresponding inductor and capacitor values, the method may further include: generating a schematic diagram based on the mapping relationship between all alternative LC matching methods and the corresponding inductor and capacitor values, thereby displaying the specific inductor and capacitor connection methods and the corresponding device values ​​under different LC matching methods through the schematic diagram.

[0112] This application also provides a computer storage medium storing a computer executable program, which is run to implement any of the methods described in this application.

[0113] Figure 3 This is a schematic diagram of the structure of the electronic device according to an embodiment of this application; as shown Figure 3 As shown, the electronic device includes a memory and a processor. The memory stores a computer-executable program, and the processor runs the computer-executable program to implement any of the methods described in the embodiments of this application.

[0114] The above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and are not intended to limit it. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An LC matching method, characterized by, The method comprises the following steps: determining the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle, wherein the first impedance circle and the first admittance circle correspond to the source end, and the second impedance circle and the second admittance circle correspond to the load end; determining the alternative LC matching mode from the source end to the load end according to the coordinates of the first intersection point and the coordinates of the second intersection point; calculating the inductance and capacitor values in each alternative LC matching mode according to the coordinates of the source impedance point, the coordinates of the first intersection point, the coordinates of the second intersection point and the coordinates of the load impedance point, wherein the source impedance point corresponds to the source end, and the load impedance point corresponds to the load end; determining the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle in the intersection point determination coordinate system; in the rectangular coordinate system, the first impedance circle and the second impedance circle are represented by formula (3); in the rectangular coordinate system, the first admittance circle and the second admittance circle are represented by formula (4); the coordinates of the midpoint: the value of the center distance: a new coordinate system is established with the line connecting the two circle centers as the X axis and the midpoint of the two circle centers as the coordinate origin, a vector a is the unit vector of the X axis, and a vector b is the unit vector of the Y axis, and the following can be obtained: the first vector is: the second vector is: the first impedance circle and the second impedance circle in the new coordinate system can be represented by formula (5): the first admittance circle and the second admittance circle are represented by formula (6): the intersection point coordinates in the intersection point determination coordinate system are represented by formula (7): the intersection point coordinates in the intersection point determination coordinate system are represented by formula (7): based on this, the coordinates of the first intersection point or the second intersection point in the intersection point determination coordinate system or the rectangular coordinate system are obtained. Before the step of determining the first intersection point of the first impedance circle and the first admittance circle, and the second intersection point of the second impedance circle and the second admittance circle, the method further comprises the following steps of:

2. The method of claim 1, wherein, determining the source impedance point corresponding to the source end marked on the Smith circle, and determining the load impedance point corresponding to the load end marked on the Smith circle.

3. The method of claim 2, wherein, The method comprises the following steps: determining the source impedance point corresponding to the source end marked on the Smith circle based on the source end reflection coefficient; determining the load impedance point corresponding to the load end marked on the Smith circle based on the load end reflection coefficient.

4. The method of claim 3, wherein, Before the step of determining the source impedance point corresponding to the source end marked on the Smith circle based on the source end reflection coefficient, the method further comprises the following step of:

5. The method of claim 3, wherein, calculating the source end reflection coefficient according to the impedance of the source end and the system impedance. Before the step of determining the load impedance point corresponding to the load end marked on the Smith circle based on the load end reflection coefficient, the method further comprises the following step of: calculating the load end reflection coefficient according to the impedance of the load end and the system impedance.

6. The method of claim 1, wherein, Before the first intersection of the first impedance circle and the first admittance circle, and the second intersection of the second impedance circle and the second admittance circle are obtained, the method further comprises: drawing the first impedance circle and the first admittance circle corresponding to the source end, and the second impedance circle and the second admittance circle corresponding to the load end.

7. The method of claim 6, wherein, The drawing of the first impedance circle and the first admittance circle corresponding to the source end, and the second impedance circle and the second admittance circle corresponding to the load end comprises: drawing the first impedance circle and the first admittance circle corresponding to the source end based on the source impedance point corresponding to the source end, and drawing the first impedance circle and the first admittance circle corresponding to the source end based on the load impedance point corresponding to the load end.

8. The method of claim 1, wherein, The determination of the alternative LC matching mode from the source end to the load end according to the coordinates of the first intersection and the coordinates of the second intersection comprises: determining the alternative LC matching mode from the source end to the load end according to the coordinates of the first intersection on the Smith circle and the coordinates of the second intersection on the Smith circle.

9. The method of claim 1, wherein, The calculation of the inductance and capacitor device values in each alternative LC matching mode according to the coordinates of the source impedance point, the coordinates of the first intersection, the coordinates of the second intersection and the coordinates of the load impedance point comprises: The calculation of the first normalized impedance value in each alternative LC matching mode according to the coordinates of the source impedance point and the coordinates of the first intersection; The calculation of the second normalized impedance value in each alternative LC matching mode according to the coordinates of the first intersection and the coordinates of the load impedance point; The calculation of the inductance and capacitor device values in each alternative LC matching mode according to the coordinates of the source impedance point, the coordinates of the first intersection, the coordinates of the second intersection and the coordinates of the load impedance point comprises:

10. The method of claim 1, wherein, After the calculation of the inductance and capacitor device values in each alternative LC matching mode according to the coordinates of the source impedance point, the coordinates of the first intersection, the coordinates of the second intersection and the coordinates of the load impedance point, the method further comprises: The removal of the negative values in the inductance and capacitor device values, and the establishment of the mapping relationship between each alternative LC matching mode and the corresponding inductance and capacitor device values.

11. The method of claim 10, wherein, After the removal of the negative values in the inductance and capacitor device values, and the establishment of the mapping relationship between each alternative LC matching mode and the corresponding inductance and capacitor device values, the method further comprises: generating a schematic display chart according to the mapping relationship between all alternative LC matching modes and the corresponding inductance and capacitor device values.

12. A computer storage medium, characterized in that The computer storage medium stores a computer executable program, and the computer executable program is run to implement the method of any one of claims 1-11.

13. An electronic device, comprising: The electronic device comprises a memory and a processor, the memory is used to store a computer executable program, and the processor is used to run the computer executable program to implement the method of any one of claims 1-11.

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