Method, system and related equipment for obtaining dissipated power of radio frequency device

Abstract

The present invention relates to a method, system and related equipment for obtaining the dissipated power of a radio frequency device, the method comprising: obtaining the scattering parameters of all circuit elements in the circuit of the radio frequency device; connecting the scattering parameters of all the circuit elements to obtain the overall scattering parameters of the radio frequency device; obtaining the incident wave vector of each circuit element; obtaining the output power vector corresponding to each circuit element according to the overall scattering parameter and the incident wave vector of each circuit element; constructing a transmission matrix based on the corresponding output power vector according to the connection relationship between all the circuit elements, and obtaining the dissipated power of the radio frequency device through calculation of the transmission matrix. The present invention uses scattering parameters as a data source to obtain the dissipated power, which is convenient for realizing automatic processing and is conducive to improving the efficiency of radio frequency device design work.

Description

Technical Field

[0001] The present invention is applicable to the technical field of radio frequency device design, and in particular relates to a method and system for obtaining dissipated power of a radio frequency device and related equipment. Background Art

[0002] With the development of wireless communication technology, the demand for RF devices in various electronic consumer products is increasing. The number of electronic components integrated in electronic consumer products is also increasing. Highly integrated electronic components will generate a lot of heat, which will not only lead to poor user experience, but also cause device performance deterioration or even device damage. Therefore, in the process of RF device design, accurate and fast power simulation calculation plays a very important role.

[0003] The current mainstream solution for calculating dissipated power is to use commercial tools. The specific method is to build a circuit for the RF device and simulate the current and voltage of each branch. The branch power on each branch is obtained through a certain physical relationship. Then, the branch power on each branch connected to the device is added together to obtain the dissipated power of the device. If there is no dissipated power, the incoming power of the device is equal to the outgoing power, and the sum of the powers on each branch is equal to 0.

[0004] However, the method based on commercial tools will inevitably result in a high procurement cost, and the existing method requires operators to manually add an ammeter to each branch and calculate the power of each branch when calculating the power dissipation of large-scale circuits, and then obtain the branch power of each device according to the circuit connection, and manually calculate the power dissipation of each device. Obviously, the existing method is difficult to perform large-scale automated calculations, and the processing of data sources and calculation processes will affect the design efficiency of RF devices. Summary of the invention

[0005] The present invention provides a method, system and related equipment for obtaining the dissipated power of a radio frequency device, aiming to solve the technical problem that the existing method relies on commercial tools and is difficult to realize automated dissipated power calculation.

[0006] In order to solve the above technical problems, in a first aspect, the present invention provides a method for obtaining dissipated power of a radio frequency device, comprising the following steps:

[0007] Obtaining the scattering parameters of all circuit elements in the circuit of the radio frequency device;

[0008] Connecting the scattering parameters of all the circuit elements to obtain the overall scattering parameters of the radio frequency device;

[0009] Obtaining an incident wave vector of each of the circuit elements;

[0010] Acquire an output power vector corresponding to each of the circuit elements according to the overall scattering parameter and the incident wave vector of each of the circuit elements;

[0011] A transmission matrix based on the corresponding output power vector is constructed according to the connection relationship between all the circuit elements, and the dissipated power of the radio frequency device is obtained by calculation through the transmission matrix.

[0012] Furthermore, the incident wave vector is defined as a , the incident wave vector a The following relations are satisfied:

[0013] ;

[0014] in, represents the peak power vector at the input port of the circuit element, Denotes the peak power vector The corresponding phase vector.

[0015] Furthermore, the output power vector is defined as b 2. The output power vector b 2 satisfies the following relationship:

[0016] ;

[0017] ;

[0018] in, b is the outgoing wave vector, is the overall scattering parameter, conj To calculate the complex conjugate.

[0019] Furthermore, according to the connection structure of all the circuit elements in the radio frequency device, a transmission matrix is ​​constructed with the output power vectors corresponding to all the circuit elements, and the step of calculating and obtaining the dissipated power of the radio frequency device through the transmission matrix is ​​specifically as follows:

[0020] Define the total number of circuit elements included in the circuit of the radio frequency device as i, the total number of ports included in the circuit of the radio frequency device as j, the transmission matrix as T, the dissipated power of the radio frequency device as P, and use the transmission matrix T to replace the overall scattering parameter , the dissipated power P is obtained, satisfying the following relationship:

[0021] ;

[0022] and:

[0023] ;

[0024] Wherein, the number of ports represents the total number of ports at the circuit intersection where the port j on the circuit element i is located;

[0025] ;

[0026] The dissipated power of the radio frequency device is obtained by determining the value of the transmission matrix T based on the connection relationship between different circuit elements.

[0027] In a second aspect, the present invention further provides a system for obtaining dissipated power of a radio frequency device, comprising:

[0028] A parameter acquisition module, used to acquire the scattering parameters of all circuit elements in the circuit of the radio frequency device;

[0029] An overall connection module, used for connecting the scattering parameters of all the circuit elements to obtain the overall scattering parameters of the radio frequency device;

[0030] An incident wave acquisition module, used to acquire an incident wave vector of each of the circuit elements;

[0031] An outgoing wave acquisition module, used for acquiring an outgoing power vector corresponding to each of the circuit elements according to the overall scattering parameter and the incident wave vector of each of the circuit elements;

[0032] A power output module is used to construct a transmission matrix based on the corresponding output power vector according to the connection relationship between all the circuit elements, and obtain the dissipated power of the radio frequency device through calculation of the transmission matrix.

[0033] Furthermore, the incident wave vector is defined as a , the incident wave vector a The following relations are satisfied:

[0034] ;

[0035] in, represents the peak power vector at the input port of the circuit element, Denotes the peak power vector The corresponding phase vector.

[0036] Furthermore, the output power vector is defined as b 2. The output power vector b 2 satisfies the following relationship:

[0037] ;

[0038] ;

[0039] in, b is the outgoing wave vector, is the overall scattering parameter, conj To calculate the complex conjugate.

[0040] Furthermore, the power output module is specifically used for:

[0041] Define the total number of circuit elements included in the circuit of the radio frequency device as i, the total number of ports included in the circuit of the radio frequency device as j, the transmission matrix as T, the dissipated power of the radio frequency device as P, and use the transmission matrix T to replace the overall scattering parameter , the dissipated power P is obtained, satisfying the following relationship:

[0042] ;

[0043] and:

[0044] ;

[0045] Wherein, the number of ports represents the total number of ports at the circuit intersection where the port j on the circuit element i is located;

[0046] ;

[0047] The dissipated power of the radio frequency device is obtained by determining the value of the transmission matrix T based on the connection relationship between different circuit elements.

[0048] In a third aspect, the present invention further provides a computer device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps in the method for obtaining the dissipated power of a radio frequency device as described in any one of the above embodiments are implemented.

[0049] In a fourth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps in the method for obtaining the dissipated power of a radio frequency device as described in any one of the above embodiments are implemented.

[0050] The beneficial effect achieved by the present invention is that a method for obtaining the dissipated power of a radio frequency device is proposed. The method does not rely on commercial tools and does not require obtaining the current and voltage data of circuit elements in the radio frequency device to obtain the bypass power. The dissipated power is obtained by analyzing the circuit structure of the radio frequency device and using the scattering parameters as the data source. This process is faster than the existing method and is easy to realize automated processing, which is beneficial to improving the efficiency of radio frequency device design work. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a flowchart of the steps of the method for obtaining the dissipated power of a radio frequency device provided by an embodiment of the present invention;

[0052] Figure 2 is a schematic diagram of the circuit structure of a radio frequency device in a method for obtaining dissipated power of a radio frequency device provided in an embodiment of the present invention;

[0053] Figure 3 It is a structural schematic diagram of a system for obtaining power dissipation of a radio frequency device provided in an embodiment of the present invention;

[0054] Figure 4 It is a schematic diagram of the structure of a computer device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0056] Please refer to Figure 1 , Figure 1 : is a flowchart of the steps of a method for obtaining the dissipated power of a radio frequency device provided in an embodiment of the present invention, wherein the method for obtaining the dissipated power of a radio frequency device comprises the following steps:

[0057] S101, obtaining scattering parameters of all circuit elements in a circuit of a radio frequency device.

[0058] Specifically, the scattering parameter is used to describe the electrical performance of the RF device. For example, the scattering parameter describes the incident wave Excite port j, and the output wave from port i ,Right now , in microwave networks, the incident wave With the outgoing wave They are all power waves, and their units are , which can be obtained by normalizing the voltage with impedance. Generally, as an inherent physical property of a circuit element, the scattering parameter can be directly obtained through the design file (such as SNP format file) of the circuit element or the entire RF device during the design stage of the RF device.

[0059] S102: Connect the scattering parameters of all the circuit elements to obtain the overall scattering parameters of the radio frequency device.

[0060] The connection of scattering parameters is a commonly used method in the design process of RF devices. Generally, according to the connection mode (such as series or parallel connection) between various circuit elements in RF archery, the scattering parameters of different elements are constructed into a matrix to calculate. The method of obtaining the overall scattering parameters in step S102 can be implemented by existing methods, and the present invention will not repeat them.

[0061] S103: Obtain an incident wave vector of each of the circuit elements.

[0062] Specifically, the incident wave refers to the power wave received by a circuit element, and the incident wave vector is defined as a , the incident wave vector a Satisfies the following expression:

[0063] ;

[0064] in, represents the peak power vector at the input port of the circuit element, Denotes the peak power vector The corresponding phase vector.

[0065] Through the above method, the incident wave vector obtained in step S103 is an average value.

[0066] S104: Acquire an output power vector corresponding to each of the circuit elements according to the overall scattering parameter and the incident wave vector of each of the circuit elements.

[0067] Specifically, as described in the above embodiment, the scattering parameter itself describes the relationship between the outgoing wave and the incident wave, so in step S104, the corresponding outgoing wave vector can be directly obtained by defining the scattering parameter; further, in the embodiment of the present invention, since the outgoing wave is a power wave, it is necessary to perform certain processing on each element in the outgoing wave vector to obtain the corresponding outgoing power vector. The outgoing power vector is defined as b 2. The output power vector b 2 satisfies the following expression:

[0068] ;

[0069] ;

[0070] in, b is the outgoing wave vector, is the overall scattering parameter, conj To calculate the complex conjugate.

[0071] S105: construct a transmission matrix based on the corresponding output power vector according to the connection relationship between all the circuit elements, and obtain the dissipated power of the radio frequency device through calculation through the transmission matrix.

[0072] Please refer to Figure 2 , Figure 2 is a schematic diagram of a circuit structure of a radio frequency device provided by an embodiment of the present invention. Figure 2 The calculation process of power dissipation of the circuit structure shown is explained. Figure 2 The RF device in includes 4 circuit elements, each of which has two ports, an input port and an output port, and different circuit elements are connected in parallel or in series. Through steps S101-S104, the embodiment of the present invention can obtain the output power vector of each port, so for the entire RF device, its overall output power vector is the set of output power vectors of each port. However, due to the complexity of the connection of each element, directly adding the port output power of each element cannot obtain the correct result. For example, for circuit element N2, the power waves represented by the output power vectors of port 2 and port 7 do not completely enter device N2, but are shunted by circuit elements N4 and N1 respectively. At this time, the output powers of port 2 and port 7 cannot be added for calculation.

[0073] Specifically, in the embodiment of the present invention, step S105 is specifically as follows:

[0074] Define the total number of circuit elements included in the circuit of the radio frequency device as i, the total number of ports included in the circuit of the radio frequency device as j, the transmission matrix as T, the dissipated power of the radio frequency device as P, and use the transmission matrix T to replace the overall scattering parameter , the dissipated power P is obtained, and this process satisfies the following relationship:

[0075] ;

[0076] and:

[0077] ;

[0078] Wherein, the number of ports represents the total number of ports at the circuit intersection where the port j on the circuit element i is located;

[0079] ;

[0080] The dissipated power of the radio frequency device is obtained by determining the value of the transmission matrix T based on the connection relationship between different circuit elements.

[0081] In the above relationship, refer to Figure 2, port j is connected to circuit element i, which means that the power wave emitted from port j can directly enter circuit element i without passing through other devices, such as port 7 can be connected to circuit elements N1 and N2, but port 7 is not connected to circuit element N3;

[0082] Whether port j is on circuit element i or not refers to the relationship between port j and circuit element i, that is, whether the power wave emitted by port j is away from circuit element i or enters circuit element i. For example, port 7 belongs to circuit element N4 relative to circuit element N4, while port 7 does not belong to circuit elements N1 and N2.

[0083] The number of ports refers to the total number of ports at the intersection where the port is located. For example, the total number of ports at the intersection where ports 2, 3, and 4 are located is 3, while the total number of ports at the intersection where ports 4 and 5 are located is 2.

[0084] Obviously, each element in the transmission matrix T The value of is actually consistent with the proportional relationship between the power wave emitted by the corresponding port and received by other ports, and the non-proportional value (such as 0) can also be correctly processed during matrix calculation.

[0085] According to the above definition, Figure 2 The calculation of the dissipated power P of the RF device shown can be calculated by the following expression:

[0086] .

[0087] The beneficial effect achieved by the present invention is that a method for obtaining the dissipated power of a radio frequency device is proposed. The method does not rely on commercial tools and does not require obtaining the current and voltage data of circuit elements in the radio frequency device to obtain the bypass power. The dissipated power is obtained by analyzing the circuit structure of the radio frequency device and using the scattering parameters as the data source. This process is faster than the existing method and is easy to realize automated processing, which is beneficial to improving the efficiency of radio frequency device design work.

[0088] The embodiment of the present invention also provides a radio frequency device dissipated power acquisition system 200, please refer to Figure 3 , Figure 3 200 is a schematic diagram of a system for obtaining power dissipation of a radio frequency device according to an embodiment of the present invention. The system 200 for obtaining power dissipation of a radio frequency device includes:

[0089] The parameter acquisition module 201 is used to acquire the scattering parameters of all circuit elements in the circuit of the radio frequency device;

[0090] An overall connection module 202, used to connect the scattering parameters of all the circuit elements to obtain the overall scattering parameters of the radio frequency device;

[0091] An incident wave acquisition module 203, used to acquire an incident wave vector of each of the circuit elements;

[0092] An outgoing wave acquisition module 204, configured to acquire an outgoing power vector corresponding to each of the circuit elements according to the overall scattering parameter and the incident wave vector of each of the circuit elements;

[0093] The power output module 205 is used to construct a transmission matrix based on the corresponding output power vector according to the connection relationship between all the circuit elements, and obtain the dissipated power of the radio frequency device through calculation of the transmission matrix.

[0094] Specifically, the incident wave vector is defined as a , the incident wave vector a The following relations are satisfied:

[0095] ;

[0096] in, represents the peak power vector at the input port of the circuit element, Denotes the peak power vector The corresponding phase vector.

[0097] Define the output power vector as b 2. The output power vector b 2 satisfies the following relationship:

[0098] ;

[0099] ;

[0100] in, b is the outgoing wave vector, is the overall scattering parameter, conj To calculate the complex conjugate.

[0101] The power output module 205 is specifically used for:

[0102] Define the total number of circuit elements included in the circuit of the radio frequency device as i, the total number of ports included in the circuit of the radio frequency device as j, the transmission matrix as T, the dissipated power of the radio frequency device as P, and use the transmission matrix T to replace the overall scattering parameter , the dissipated power P is obtained, satisfying the following relationship:

[0103] ;

[0104] and:

[0105] ;

[0106] Wherein, the number of ports represents the total number of ports at the circuit intersection where the port j on the circuit element i is located;

[0107] ;

[0108] The dissipated power of the radio frequency device is obtained by determining the value of the transmission matrix T based on the connection relationship between different circuit elements.

[0109] The RF device dissipated power acquisition system 200 can implement the steps in the RF device dissipated power acquisition method in the above embodiment, and can achieve the same technical effects. Please refer to the description in the above embodiment and will not be repeated here.

[0110] The embodiment of the present invention also provides a computer device, please refer to Figure 4 , Figure 4 300 is a schematic diagram of the structure of a computer device provided in an embodiment of the present invention. The computer device 300 includes: a memory 302, a processor 301, and a computer program stored in the memory 302 and executable on the processor 301.

[0111] The processor 301 calls the computer program stored in the memory 302 to execute the steps in the method for obtaining the dissipated power of the radio frequency device provided in the embodiment of the present invention. Figure 1 , specifically including the following steps:

[0112] S101, obtaining scattering parameters of all circuit elements in a circuit of a radio frequency device.

[0113] S102: Connect the scattering parameters of all the circuit elements to obtain the overall scattering parameters of the radio frequency device.

[0114] S103: Obtain an incident wave vector of each of the circuit elements.

[0115] Specifically, the incident wave vector is defined as a , the incident wave vector a The following relations are satisfied:

[0116] ;

[0117] in, represents the peak power vector at the input port of the circuit element, Denotes the peak power vector The corresponding phase vector.

[0118] S104: Acquire an output power vector corresponding to each of the circuit elements according to the overall scattering parameter and the incident wave vector of each of the circuit elements.

[0119] Define the output power vector as b 2. The output power vector b 2 satisfies the following relationship:

[0120] ;

[0121] ;

[0122] in, b is the outgoing wave vector, is the overall scattering parameter, conj To calculate the complex conjugate.

[0123] S105. According to the connection structure of all the circuit elements in the radio frequency device, a transmission matrix is ​​constructed with the output power vectors corresponding to all the circuit elements, and the dissipated power of the radio frequency device is obtained by calculation through the transmission matrix.

[0124] Step S105 is specifically as follows:

[0125] Define the total number of circuit elements included in the circuit of the radio frequency device as i, the total number of ports included in the circuit of the radio frequency device as j, the transmission matrix as T, the dissipated power of the radio frequency device as P, and use the transmission matrix T to replace the overall scattering parameter , the dissipated power P is obtained, satisfying the following relationship:

[0126] ;

[0127] and:

[0128] ;

[0129] In the above formula, the number of ports represents the total number of ports at the circuit intersection where the port j on the circuit element i is located;

[0130] ;

[0131] The dissipated power of the radio frequency device is obtained by determining the value of the transmission matrix T based on the connection relationship between different circuit elements.

[0132] The computer device 300 provided in the embodiment of the present invention can implement the steps in the method for obtaining the dissipated power of a radio frequency device in the above embodiment, and can achieve the same technical effect. Please refer to the description in the above embodiment, which will not be repeated here.

[0133] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the various processes and steps in the method provided in the embodiment of the present invention are implemented, and the same technical effect can be achieved. To avoid repetition, the RF device dissipated power acquisition is not described here.

[0134] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing related hardware (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0135] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0136] The embodiments of the present invention are described above in conjunction with the accompanying drawings. What is disclosed is only the preferred embodiment of the present invention. However, the present invention is not limited to the above-mentioned specific implementation manner. The above-mentioned specific implementation manner is only illustrative rather than restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms and equivalent changes without departing from the scope of protection of the purpose of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A method for obtaining dissipated power of a radio frequency device, characterized in that: The following steps are involved: Obtaining the scattering parameters of all circuit elements in the circuit of the radio frequency device; Connecting the scattering parameters of all the circuit elements to obtain the overall scattering parameters of the radio frequency device; Obtaining an incident wave vector of each of the circuit elements; Acquire an output power vector corresponding to each of the circuit elements according to the overall scattering parameter and the incident wave vector of each of the circuit elements; Constructing a transmission matrix based on the corresponding output power vector according to the connection relationship between all the circuit elements, and obtaining the dissipated power of the radio frequency device through calculation by the transmission matrix; Wherein, the incident wave vector is defined as a , the incident wave vector a The following relations are satisfied: ； in, represents the peak power vector at the input port of the circuit element, Denotes the peak power vector The corresponding phase vector; Define the output power vector as b 2. The output power vector b 2 satisfies the following relationship: ； ； in, b is the outgoing wave vector, is the overall scattering parameter, conj To calculate the complex conjugate; According to the connection structure of all the circuit elements in the radio frequency device, a transmission matrix is ​​constructed with the output power vectors corresponding to all the circuit elements, and the step of calculating and obtaining the dissipated power of the radio frequency device through the transmission matrix is ​​specifically as follows: Define the total number of circuit elements included in the circuit of the radio frequency device as i, the total number of ports included in the circuit of the radio frequency device as j, the transmission matrix as T, the dissipated power of the radio frequency device as P, and use the transmission matrix T to replace the overall scattering parameter , the dissipated power P is obtained, satisfying the following relationship: ， ， ； and: ； Wherein, the number of ports represents the total number of ports at the circuit intersection where the port j on the circuit element i is located; ； The dissipated power of the radio frequency device is obtained by determining the value of the transmission matrix T based on the connection relationship between different circuit elements.

2. A radio frequency device dissipated power acquisition system, characterized in that: include: A parameter acquisition module, used to acquire the scattering parameters of all circuit elements in the circuit of the radio frequency device; An overall connection module, used for connecting the scattering parameters of all the circuit elements to obtain the overall scattering parameters of the radio frequency device; An incident wave acquisition module, used to acquire an incident wave vector of each of the circuit elements; An outgoing wave acquisition module, used for acquiring an outgoing power vector corresponding to each of the circuit elements according to the overall scattering parameter and the incident wave vector of each of the circuit elements; A power output module, used to construct a transmission matrix based on the corresponding output power vector according to the connection relationship between all the circuit elements, and obtain the dissipated power of the radio frequency device through calculation through the transmission matrix; Wherein, the incident wave vector is defined as a , the incident wave vector a The following relations are satisfied: ； in, represents the peak power vector at the input port of the circuit element, Denotes the peak power vector The corresponding phase vector; Define the output power vector as b 2. The output power vector b 2 satisfies the following relationship: ； ； in, b is the outgoing wave vector, is the overall scattering parameter, conj To calculate the complex conjugate; The power output module is specifically used for: Define the total number of circuit elements included in the circuit of the radio frequency device as i, the total number of ports included in the circuit of the radio frequency device as j, the transmission matrix as T, the dissipated power of the radio frequency device as P, and use the transmission matrix T to replace the overall scattering parameter , the dissipated power P is obtained, satisfying the following relationship: ， ， ； and: ； Wherein, the number of ports represents the total number of ports at the circuit intersection where the port j on the circuit element i is located; ； The dissipated power of the radio frequency device is obtained by determining the value of the transmission matrix T based on the connection relationship between different circuit elements.

3. A computer device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps in the method for obtaining dissipated power of a radio frequency device as claimed in claim 1 when executing the computer program.

4. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the method for obtaining dissipated power of a radio frequency device as claimed in claim 1 are implemented.

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