Method and system for testing efficiency of power amplifier of radio frequency module

Abstract

The invention relates to the technical field of radio frequency modules, and discloses a radio frequency module power amplifier efficiency test method and system, and the method comprises the steps: connecting a signal generator, a power meter, a spectrum analyzer and a DC power supply with a to-be-tested power amplifier, and obtaining a layered power amplifier efficiency test system; establishing a continuous wave test model and a modulation signal test model to obtain compensation parameter data; inputting a first test signal to the to-be-tested power amplifier to obtain power gain data and standardized efficiency data; inputting a second test signal to the to-be-tested power amplifier to obtain adjacent channel leakage power ratio data; performing total efficiency analysis and isolation efficiency analysis on different working states to obtain a layering efficiency analysis result; and carrying out standardization processing on a hierarchical efficiency analysis result, establishing power measurement error evaluation and efficiency calculation error evaluation, and obtaining a power amplifier efficiency test report, thereby realizing comprehensive evaluation on the efficiency characteristics of the power amplifier in different working states.

Description

Technical Field

[0001] The present application relates to the field of radio frequency module technology, and in particular to a method and system for testing the efficiency of a radio frequency module power amplifier. Background Art

[0002] With the rapid development of 5G communication technology, the performance of RF modules, as key components of mobile communication systems, directly affects the quality of the entire communication system. Among them, the accuracy and reliability of the efficiency test of the power amplifier, as the core component of the RF module, is particularly important. In the prior art, the efficiency test of the RF module power amplifier mainly adopts two methods: continuous wave test and modulated signal test. However, due to the nonlinear characteristics and temperature drift of the power amplifier, the test results often have large errors. At the same time, traditional testing methods lack the ability to systematically evaluate the efficiency of the power amplifier under different working conditions, and it is difficult to fully reflect the actual performance of the power amplifier.

[0003] Existing power amplifier efficiency test systems generally have problems such as insufficient measurement accuracy, poor temperature adaptability, and complex test processes. Especially in the 5G communication frequency band, due to the wider signal bandwidth and greater power variation, traditional test methods are difficult to meet the needs of high-precision measurement. In addition, due to the lack of an effective compensation mechanism and a standardized evaluation system, the comparability and reliability of test results are also facing challenges. Summary of the invention

[0004] The present application provides a method and system for testing the efficiency of a radio frequency module power amplifier, thereby achieving a comprehensive evaluation of the efficiency characteristics of the power amplifier under different operating conditions.

[0005] The first aspect of the present application provides a method for testing the efficiency of a radio frequency module power amplifier, the method comprising: Connecting a signal generator, a power meter, a spectrum analyzer, and a DC power supply to a power amplifier to be tested, and setting an impedance matching network and a temperature control unit for the power amplifier to be tested to obtain a hierarchical power amplifier efficiency test system; Based on the PI dynamic nonlinear model, a continuous wave test model and a modulation signal test model are established for the hierarchical power amplifier efficiency test system to obtain compensation parameter data; According to the compensation parameter data, a first test signal is input to the power amplifier to be tested, and input and output power and direct current power supply parameters are measured by a power meter to obtain power gain data and standardized efficiency data; Based on the power gain data and the standardized efficiency data, a second test signal is input to the power amplifier to be tested through feedforward-feedback composite control, and a spectrum analyzer is used for measurement to obtain adjacent channel leakage power ratio data; According to the power gain data, the standardized efficiency data and the adjacent channel leakage power ratio data, an efficiency-frequency curve and an efficiency-power curve are established, and a total efficiency analysis and an isolation efficiency analysis are performed on different working states to obtain a hierarchical efficiency analysis result; The hierarchical efficiency analysis results are standardized, power measurement error evaluation and efficiency calculation error evaluation are established, and a power amplifier efficiency test report is obtained.

[0006] A second aspect of the present application provides a radio frequency module power amplifier efficiency test system, the radio frequency module power amplifier efficiency test system comprising: A connection module is used to connect a signal generator, a power meter, a spectrum analyzer, a DC power supply and a power amplifier to be tested, and to set an impedance matching network and a temperature control unit for the power amplifier to be tested, so as to obtain a hierarchical power amplifier efficiency test system; An establishment module is used to establish a continuous wave test model and a modulation signal test model for the hierarchical power amplifier efficiency test system based on a PI dynamic nonlinear model to obtain compensation parameter data; A first test module, configured to input a first test signal to the power amplifier to be tested according to the compensation parameter data, measure input and output power and direct current power supply parameters through a power meter, and obtain power gain data and standardized efficiency data; A second test module is used to input a second test signal to the power amplifier to be tested through feedforward-feedback composite control based on the power gain data and the standardized efficiency data, and measure with a spectrum analyzer to obtain adjacent channel leakage power ratio data; An analysis module, used to establish an efficiency-frequency curve and an efficiency-power curve according to the power gain data, the standardized efficiency data and the adjacent channel leakage power ratio data, perform total efficiency analysis and isolation efficiency analysis on different working states, and obtain a hierarchical efficiency analysis result; The evaluation module is used to perform standardization processing on the hierarchical efficiency analysis results, establish power measurement error evaluation and efficiency calculation error evaluation, and obtain a power amplifier efficiency test report.

[0007] The third aspect of the present application provides an electronic device, comprising: a memory and at least one processor, wherein the memory stores instructions; the at least one processor calls the instructions in the memory so that the electronic device executes the above-mentioned RF module power amplifier efficiency test method.

[0008] A fourth aspect of the present application provides a computer-readable storage medium, which stores instructions. When the computer-readable storage medium is run on a computer, the computer executes the above-mentioned RF module power amplifier efficiency test method.

[0009] Compared with the prior art, the present application has the following beneficial effects: by establishing a hierarchical power amplifier efficiency test system, adopting a π-type impedance matching network and a temperature control unit, the impedance matching problem and the influence of temperature drift of the test system are effectively solved, and the stability of the test system is improved; based on the compensation mechanism of the PI dynamic nonlinear model, combined with continuous wave testing and modulated signal testing, accurate compensation for the nonlinear characteristics of the power amplifier is achieved, and the test accuracy is significantly improved; by adopting a feedforward-feedback composite control strategy, the accuracy of ACLR measurement is effectively improved by dynamically adjusting the working state of the power amplifier, making the test results more reliable; a multi-layer efficiency analysis system is established, and through total efficiency analysis and isolation efficiency analysis, a comprehensive evaluation of the efficiency characteristics of the power amplifier under different working states is achieved; through the comprehensive analysis of power measurement errors and efficiency calculation errors, the accuracy of the efficiency test of the RF module power amplifier is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0011] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0012] Figure 1 It is a flow chart of a method for testing the efficiency of a radio frequency module power amplifier provided by an embodiment of the present invention; Figure 2 It is a schematic block diagram of the structure of a radio frequency module power amplifier efficiency testing system provided by an embodiment of the present invention; Figure 3 It is a schematic block diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0015] It should also be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0016] It should be further understood that the term "and / or" used in the specification and appended claims of this application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations. Figure 1 , an embodiment of the method for testing the efficiency of a radio frequency module power amplifier in the embodiment of the present application includes: Step S100, connecting a signal generator, a power meter, a spectrum analyzer, and a DC power supply to a power amplifier to be tested, and setting an impedance matching network and a temperature control unit for the power amplifier to be tested to obtain a hierarchical power amplifier efficiency test system; It is understandable that the execution subject of the present application may be a radio frequency module power amplifier efficiency test system, or a terminal or a server, which is not specifically limited here. The present application embodiment is described by taking a server as the execution subject as an example.

[0017] Specifically, the output end of the signal generator is connected to the input end of the power amplifier to be tested by radio frequency, and the power meter is connected to the output end of the power amplifier to be tested by a signal cable to form a first test loop, thereby measuring the power of the signal generator input signal and the power of the amplifier output signal. In order to effectively evaluate the spectrum characteristics of the RF module, especially the influence of adjacent channel interference and harmonic distortion, a coupler is set between the input end of the spectrum analyzer and the output end of the power amplifier to be tested. The coupler can extract a part of the power amplifier output signal without affecting the normal power output of the entire system, and the signal is coupled by the coupler to form a second test loop. The second test loop introduces the spectrum characteristics of the output signal into the spectrum analyzer for analysis to obtain key performance parameters such as harmonic distortion and adjacent channel leakage power ratio. At the same time, in order to ensure the stable power supply of the power amplifier to be tested, the positive and negative poles of the DC power supply are connected to the power supply end of the power amplifier to be tested. In order to accurately monitor the input power of the power amplifier, the output voltage and current of the DC power supply are sampled to obtain a third test loop. The third test loop can measure the DC input power parameters of the power amplifier. Based on the first test loop, the second test loop and the third test loop, a π-type impedance matching network is connected to the input and output ends of the power amplifier to be tested, and the impedance matching operation is performed by debugging and adjusting the impedance matching network to obtain impedance matching parameters that meet the requirements. Through the impedance matching operation, it is ensured that the entire test system has good impedance matching within the working frequency band, thereby maximizing the transmission efficiency of the amplifier and reducing signal reflection and distortion. At the same time, a temperature sensor and a heating and cooling device are installed on the power amplifier to be tested. The temperature sensor is used to collect the temperature data of the amplifier in real time, and the heating and cooling device is used to adjust the temperature according to the collected temperature information to ensure that the amplifier to be tested always works within the expected temperature range. The temperature control parameters are obtained through the coordinated work of the temperature sensor and the heating and cooling device. According to the impedance matching parameters and the temperature control parameters, the test data of the first test loop, the second test loop and the third test loop are collected and set to ensure the data accuracy and consistency of the entire test process. In the process of test data collection, the sampling timing and sampling accuracy are reasonably adjusted to meet the requirements of different test models. For example, when the spectrum analyzer tests the adjacent channel leakage power ratio, a higher sampling rate is required to capture the spectrum characteristics of the signal; and when the power meter performs power measurement, a higher measurement accuracy is required to ensure the accuracy of the calculation efficiency. Finally, a hierarchical power amplifier efficiency test system is obtained.

[0018] Step S200: Based on the PI dynamic nonlinear model, a continuous wave test model and a modulation signal test model are established for the layered power amplifier efficiency test system to obtain compensation parameter data; Specifically, the characteristics of thermal noise and nonlinear distortion in the layered power amplifier efficiency test system are analyzed, and a PI dynamic nonlinear model is established. The presence of thermal noise affects the signal-to-noise ratio of the system, while nonlinear distortion significantly changes the gain characteristics and linearity performance of the power amplifier. By quantifying and modeling the characteristics of thermal noise and nonlinear distortion, the PI model can accurately describe the dynamic characteristics of the system. A continuous wave signal within a preset frequency range is input into the PI dynamic nonlinear model to evaluate the nonlinear characteristics of the power amplifier. Through the first test loop, the distortion data of the system under the excitation of the continuous wave signal is collected, and a nonlinear mapping relationship is established based on the distortion data to reflect the nonlinear relationship between the output characteristics of the amplifier and the input signal, and a continuous wave response characteristic is obtained. The continuous wave response characteristic is input into the PI dynamic nonlinear model, and the coupler parameters in the second test loop are corrected. The coupler is used to introduce part of the RF signal into the spectrum analyzer, so the performance of the coupler directly affects the accuracy of the collected spectrum data. Through the correction process, the first compensation parameter is obtained. Based on the first compensation parameter, a 5G modulation signal is input into the power amplifier to be tested to simulate the signal characteristics in the actual communication scenario. Through the second test loop, the spectrum data of the power amplifier under the excitation of the modulation signal is collected to obtain the response characteristics of the modulation signal. Since the 5G modulation signal has a wide bandwidth and a complex modulation method, its response characteristics can better reflect the behavior of the power amplifier under complex signal conditions. The modulation signal response characteristics are input into the PI dynamic nonlinear model, and the sampling parameters in the third test loop are optimized to ensure that the sampling process can accurately capture the output signal characteristics of the amplifier, and the second compensation parameters are obtained. Based on the first compensation parameter and the second compensation parameter, a feedforward compensation calculation is performed to set the measurement range of the continuous wave test model to obtain the first measurement parameter. Feedforward compensation is an active adjustment method that compensates for known errors in the system in advance to reduce the impact on the measurement results. The first measurement parameter enables the system to automatically adjust the measurement range to adapt to different test conditions at different frequencies and power levels. Based on the first measurement parameter, a feedback compensation calculation is performed to set the adjacent channel leakage power ratio (ACLR) threshold of the modulation signal test model to obtain the second measurement parameter. Feedback compensation is a closed-loop control method that uses measured errors to make real-time adjustments to ensure that the linearity of the signal is maintained. ACLR is one of the important indicators for evaluating amplifier linearity. The setting of the second measurement parameter can ensure that the test system can measure ACLR more accurately when performing modulated signal testing. According to the first measurement parameter and the second measurement parameter, the test model of the power amplifier to be tested is calibrated to obtain compensation parameter data.

[0019] Step S300: input a first test signal to the power amplifier to be tested according to the compensation parameter data, measure the input and output power and the DC power supply parameters by a power meter, and obtain power gain data and standardized efficiency data; It should be noted that, according to the compensation parameter data, the power of the continuous wave signal output by the signal generator is controlled, and the signal is input to the power amplifier to be tested through the first test loop. By controlling the output power of the signal generator, it is ensured that the power level of the input signal is suitable for the working range of the power amplifier to be tested, and the first power data is obtained to reflect the response of the power amplifier under a specific input power. The first power data is sampled in sections. The power meter performs a power scan within a preset frequency range to effectively reflect the gain characteristics and power response of the power amplifier at different frequencies, and obtains the second power data. According to the first power data and the second power data, the power gain is logarithmically calculated to obtain the power gain data for comparison and analysis. The output voltage and current of the DC power supply are accurately sampled to evaluate the DC power consumption of the power amplifier. When the voltage is sampled, the output voltage of the DC power supply is sampled at high speed through the third test loop to obtain the voltage change curve. The voltage data is compensated based on the first compensation parameter to eliminate the influence introduced by the test environment or the error of the device itself, and the compensated voltage data is obtained. Similarly, the output current of the DC power supply is sampled at high speed. The current change curve is collected through the third test loop, and the current consumption of the power amplifier can be monitored in real time. The current data is compensated based on the second compensation parameter to eliminate the deviation caused by factors such as equipment error, sampling error or system noise, and the compensated current data is obtained. The DC power consumption is calculated for the compensated voltage data and the compensated current data. DC power consumption is an important indicator for evaluating the overall efficiency of the power amplifier, reflecting the electric energy consumed by the power amplifier when working. The DC power consumption data is obtained by multiplying the compensated voltage and current data. Based on the second power data and the DC power consumption data, efficiency calculation and numerical normalization are performed to obtain standardized efficiency data. The efficiency calculation involves comparing the output power of the power amplifier with the input DC power consumption to calculate its efficiency performance. The numerical normalization process can eliminate the differences generated under different test conditions and ensure that the efficiency data has a unified standard and comparability. Through the above steps, standardized efficiency data is finally obtained, reflecting the overall efficiency performance of the power amplifier under different working conditions.

[0020] Step S400: Based on the power gain data and the normalized efficiency data, a second test signal is input to the power amplifier to be tested through feedforward-feedback composite control, and a spectrum analyzer is used for measurement to obtain adjacent channel leakage power ratio data; Specifically, the power gain data is linearized, the amplitude and phase of the 5G modulated signal are pre-distorted and compensated through the feedforward compensation circuit, and the input signal is corrected before entering the power amplifier, thereby offsetting the nonlinear distortion effect of the amplifier, which helps to improve the linearity of the amplifier, minimize the distortion of the amplifier output signal, and obtain the compensated 5G signal. Based on the standardized efficiency data, the bias voltage of the power amplifier to be tested is dynamically adjusted to optimize the working state of the amplifier and improve the overall efficiency and linearity. The compensated 5G signal is input to the power amplifier to be tested through the first test loop to obtain the first ACLR measurement value. ACLR is an important indicator for measuring the adjacent channel interference level of the power amplifier. The ACLR value obtained through preliminary measurement is used to evaluate the linear performance and interference suppression capability of the amplifier under given working conditions. According to the first ACLR measurement value, the coupler coefficient in the second test loop is corrected to ensure that the error introduced in the signal coupling process is minimized, and then the center frequency and scanning bandwidth are set by the spectrum analyzer, and the power scan of the spectrum is performed to obtain the power spectrum scan data. The center frequency and scanning bandwidth of the spectrum analyzer determine the accuracy and range of signal acquisition. Through reasonable settings, the spectrum information of the main channel and its adjacent channels can be fully captured. The power spectrum scanning data is input into the spectrum analysis processing unit, and the power within the bandwidth range of ±5MHz of the center frequency point is integrated to obtain the main channel power. The main channel power reflects the effective signal energy output by the amplifier, and the integral calculation helps to accurately quantify the power level in the channel. At the same time, the power spectrum scanning data is analyzed out of band, and the adjacent channel power is obtained by integrating the power within the bandwidth range of ±10MHz of the center frequency point. The adjacent channel power reflects the degree of signal leakage of the amplifier out of band, and its size directly determines the interference to the adjacent channel. Based on the main channel power and the adjacent channel power, ACLR calculation and data standardization processing are performed to obtain the second ACLR measurement value. The ACLR calculation result reflects the power ratio between the main channel and the adjacent channel, which is the core indicator for evaluating the linearity of the amplifier. In order to ensure the comparability of ACLR data under different test conditions, data standardization processing is performed to eliminate the deviation introduced by different input conditions and test environments, and to ensure the consistency and reliability of ACLR measurement values ​​under different conditions. Feedback compensation control is performed on the second ACLR measurement value, and the operating point parameters of the power amplifier to be tested are continuously updated through iterative calculation to further optimize its ACLR performance. In each iteration, the optimal operating state is found by adjusting the amplifier's bias voltage, input power level and other parameters to achieve the best ACLR. The feedback compensation control method effectively improves the linearity of the amplifier, reduces adjacent channel leakage, improves the overall quality of the signal, and finally obtains ACLR optimization data. Based on the ACLR optimization data, the output signal of the power amplifier to be tested is subjected to spectrum resampling and cumulative averaging.The purpose of spectrum resampling is to ensure that the signal spectrum is acquired with sufficient accuracy and resolution, while the cumulative average processing helps to reduce random noise and transient interference in the measurement and obtain more stable and accurate adjacent channel leakage power ratio data.

[0021] Step S500: Establish an efficiency-frequency curve and an efficiency-power curve according to the power gain data, the standardized efficiency data and the adjacent channel leakage power ratio data, perform a total efficiency analysis and an isolation efficiency analysis on different working states, and obtain a hierarchical efficiency analysis result; Specifically, the power gain data is processed linearly in sections according to the preset frequency segments, and the gain change rate of each frequency point is obtained by interpolating each frequency segment, and a gain change curve is generated. The gain change curve is matched with the standardized efficiency data, and a functional relationship between efficiency and frequency is established through a cubic spline interpolation algorithm to obtain a first efficiency characteristic curve, which reflects the relationship between gain and efficiency of the power amplifier within a specific frequency range. Based on the first efficiency characteristic curve, the adjacent channel leakage power ratio data is subjected to power scanning mapping, and the functional relationship between efficiency and power is established by least squares fitting to obtain a second efficiency characteristic curve. The adjacent channel leakage power ratio (ACLR) data provides the linearity information of the amplifier. By associating ACLR with power, the relationship between efficiency and power is effectively established. The least squares fitting is an error minimization method. Through the fitting process, it is ensured that the obtained second efficiency characteristic curve can reflect the trend of efficiency in power changes, thereby providing a more accurate description of the performance of the amplifier. Based on the first efficiency characteristic curve and the second efficiency characteristic curve, the efficiency analysis and calculation of the continuous wave test model are performed to obtain standardized efficiency data in the first state. The efficiency analysis under the continuous wave state mainly focuses on the efficiency characteristics of the power amplifier under fixed power and frequency conditions. By using the two efficiency characteristic curves mentioned above, the output characteristics of the amplifier are quantified and the efficiency data after standardization is obtained. At the same time, the first efficiency characteristic curve and the second efficiency characteristic curve in the modulation signal test model are input into the analysis unit, and the efficiency analysis calculation under the modulation signal state is performed to obtain the standardized efficiency data of the second state. Unlike the continuous wave test, the modulation signal test reflects the efficiency performance of the amplifier when processing the actual communication signal, because the modulation signal has a more complex waveform and spectrum characteristics, so the impact on the efficiency is more diverse. By analyzing the modulation signal based on the efficiency characteristic curve, the performance of the amplifier in the real application scenario can be better evaluated. The weighted comprehensive operation is performed on the standardized efficiency data of the first state and the standardized efficiency data of the second state, and the total efficiency distribution model is established through the state weight matrix to obtain the total efficiency curve. Based on the total efficiency curve, the isolation efficiency analysis is performed on the continuous wave state and the modulation signal state respectively to obtain the isolation efficiency parameter. The efficiency performance of the power amplifier in each working state is independently evaluated to clarify the specific impact of different signal conditions on the amplifier performance. A hierarchical analysis is performed on the isolation efficiency parameters, and a multi-layer efficiency evaluation model is established to obtain the hierarchical efficiency analysis results. The hierarchical analysis method is a method for structured evaluation of complex systems. By analyzing the efficiency parameters of each level step by step, the influence of each factor on the overall efficiency is clarified. Based on the results of the hierarchical analysis, a multi-layer efficiency evaluation model is established to systematically describe the efficiency characteristics of the power amplifier and obtain the hierarchical efficiency analysis results.

[0022] Step S600: Standardize the hierarchical efficiency analysis results, establish power measurement error evaluation and efficiency calculation error evaluation, and obtain a power amplifier efficiency test report.

[0023] Specifically, statistical processing is performed on the power gain data and the standardized efficiency data, the distribution characteristics of these data under normal temperature are analyzed, and the power measurement error is calculated. By summarizing and statistically analyzing the power gain and efficiency data, the deviations and outliers in the measurement are identified, and a first error distribution curve is obtained, which reflects the error range and distribution characteristics of the power measurement under conventional test conditions. Based on the hierarchical efficiency analysis results, the power amplifier to be tested is measured under high temperature, and the measurement data is error corrected by a standardized formula to eliminate the error offset caused by temperature change. Under high temperature conditions, the characteristics of the amplifier will change, resulting in different performances of power gain and efficiency from those under normal temperature conditions. Standardization processing is used to ensure that the data measured under different temperature conditions are comparable. After the error correction is completed, a second error distribution curve is obtained, which reflects the error characteristics of power measurement under high temperature conditions. According to the first error distribution curve and the second error distribution curve, the root mean square error of the power measurement is calculated to obtain power error evaluation data. By calculating the root mean square error, the systematic deviation and random error in the power measurement process are quantified. Feature extraction is performed on the standardized efficiency data under continuous wave state and modulated signal state to calculate the efficiency error and draw the efficiency error curve. There are significant differences in the efficiency performance of the power amplifier under the two working states of continuous wave and modulated signal, and these differences also have different errors under different conditions. Through feature extraction, key statistical characteristics such as mean, variance, peak value, etc. are extracted from the efficiency data to help identify the source of error in efficiency performance. After completing the feature extraction, the efficiency error is calculated and the efficiency error curve is drawn. By analyzing the efficiency error curve, the weighted efficiency error data is obtained. The weighted efficiency error data considers the importance of the efficiency error under different working states, thereby comprehensively weighting the errors of each state to ensure that the final error evaluation can reflect the overall performance of the system. Based on the power error evaluation data and the weighted efficiency error data, the measurement error in the power measurement and the calculation error in the efficiency calculation are comprehensively evaluated to obtain the overall error distribution model. The overall error distribution model is data-stratified to obtain the error level parameter. According to different error levels, the error distribution model is divided into multiple levels to clarify the degree of influence of different levels of errors on system performance. According to the error level parameter, the efficiency test results of the power amplifier to be tested are quality evaluated to generate the final power amplifier efficiency test report. By evaluating the error level of the efficiency test results, it is determined whether the working state of the amplifier meets the design requirements and whether the performance under different working conditions meets the standards. The generated power amplifier efficiency test report contains detailed information such as power gain, efficiency performance, error distribution, quality assessment, etc.

[0024] In the embodiment of the present application, by establishing a layered power amplifier efficiency test system, a π-type impedance matching network and a temperature control unit are used to effectively solve the impedance matching problem and the influence of temperature drift of the test system, and improve the stability of the test system; based on the compensation mechanism of the PI dynamic nonlinear model, combined with continuous wave testing and modulated signal testing, accurate compensation for the nonlinear characteristics of the power amplifier is achieved, and the test accuracy is significantly improved; a feedforward-feedback composite control strategy is adopted, and the accuracy of ACLR measurement is effectively improved by dynamically adjusting the working state of the power amplifier, making the test results more reliable; a multi-layer efficiency analysis system is established, and a comprehensive evaluation of the efficiency characteristics of the power amplifier under different working states is achieved through total efficiency analysis and isolation efficiency analysis; the accuracy of the RF module power amplifier efficiency test is improved through a comprehensive analysis of power measurement errors and efficiency calculation errors.

[0025] In a specific embodiment, the process of executing step S100 may specifically include the following steps: An output end of the signal generator is connected to an input end of the power amplifier to be tested by radio frequency, and a power meter is connected to the output end of the power amplifier to be tested through a signal cable to obtain a first test loop; A coupler is provided between the input end of the spectrum analyzer and the output end of the power amplifier to be tested, and a signal is coupled through the coupler to obtain a second test loop; Connecting the positive and negative electrodes of the DC power supply to the power supply end of the power amplifier to be tested, and connecting the output voltage and current sampling ports of the DC power supply to obtain a third test loop; Based on the first test loop, the second test loop and the third test loop, a π-type impedance matching network is connected to the input end and the output end of the power amplifier to be tested, an impedance matching operation is performed, and an impedance matching parameter is obtained; Install a temperature sensor and a heating and cooling device on the power amplifier to be tested, collect temperature data through the temperature sensor, control the heating and cooling device, and obtain temperature control parameters; According to the impedance matching parameters and the temperature control parameters, the test data of the first test loop, the second test loop and the third test loop are collected and set, and the sampling timing and the sampling accuracy are adjusted to obtain a layered power amplifier efficiency test system.

[0026] Specifically, an RF connection is made between the output of the signal generator and the input of the power amplifier to be tested to ensure that the signal can be transmitted losslessly from the signal generator to the power amplifier. In order to ensure the stability of the connection and the integrity of the signal, a low-loss RF coaxial cable is used, and appropriate connectors and shielding designs are used to minimize the effects of signal attenuation and external interference. The power meter is connected to the output of the power amplifier to be tested through an RF signal cable to obtain the first test loop. The main function of this loop is to measure the output power of the amplifier, compare it with the input power, and calculate the gain (G). The formula for calculating the gain is: ; in, is the power gain, represents the output power of the power amplifier, Represents input power. By measuring the output and input power, the gain characteristics of the amplifier under different frequency and power conditions are evaluated. At the same time, a coupler is set between the input end of the spectrum analyzer and the output end of the power amplifier to be tested to achieve partial acquisition of the output signal and introduce it into the spectrum analyzer to obtain the second test loop. The function of the coupler is to couple part of the signal into the measurement equipment without significantly affecting the normal operation of the power amplifier. The coupler uses a directional coupler with a coupling coefficient ( ) is expressed as: ; in, is the coupling coefficient, is the coupled output power, is the output power of the amplifier. By coupling the signal, the spectrum analyzer effectively measures the spectral characteristics of the power amplifier, including the frequency components of the output signal, harmonic distortion, and adjacent channel leakage power ratio (ACLR). These spectral characteristics can help identify the linearity characteristics and signal quality of the power amplifier, and provide compensation for nonlinear factors in efficiency analysis. In order to ensure that the power amplifier can work properly, the positive and negative poles of the DC power supply need to be connected to the power supply end of the power amplifier to be tested to ensure that it can obtain the appropriate supply voltage and current. At the same time, the output voltage and current sampling ports of the DC power supply are connected to collect the actual power consumption data of the power amplifier to form a third test loop. Through this loop, the DC power consumption ( ), the calculation formula is: ; in, is the DC power consumption, Represents the output voltage of the DC power supply, Represents the output current of the DC power supply. Based on the first test loop, the second test loop and the third test loop, a π-type impedance matching network is connected to the input and output of the power amplifier to be tested. The role of the impedance matching network is to maximize the power transmission efficiency and minimize the signal reflection loss. By adjusting the component values ​​of the π-type matching network, the input impedance ( ) and source impedance ( ) and output impedance ( ) and load impedance ( ). The matching condition is described by the following formula: ; in, represents the reflection coefficient, represents the input impedance, Represents the source impedance. When the reflection coefficient is zero, it indicates a complete match, thereby maximizing the efficiency of power transmission. After performing the impedance matching operation, the impedance matching parameters are obtained. A temperature sensor and a heating and cooling device are installed on the power amplifier to be tested. The temperature sensor is used to monitor the temperature of the power amplifier in real time, while the heating and cooling device heats or cools the power amplifier as needed to ensure that it maintains a stable operating temperature during the test. The temperature data collected by the temperature sensor ( ) is used to control the heating and cooling device to keep the temperature of the power amplifier at the set target temperature ( ). The control process is expressed by the following formula: ; in, Represents the temperature deviation. When the temperature deviation is large, the heating and cooling device will make corresponding adjustments to reduce the deviation and stabilize the working state of the power amplifier. Through temperature control, the impact of temperature changes on the performance of the power amplifier is effectively reduced to ensure the accuracy and repeatability of the test results. According to the aforementioned impedance matching parameters and temperature control parameters, the test data of the first test loop, the second test loop and the third test loop are collected and set, and the sampling timing and sampling accuracy are adjusted to ensure the accuracy and consistency of the test data. In the test data acquisition process, the adjustment of the sampling timing ensures the synchronization of each test signal in time, and the adjustment of the sampling accuracy ensures the accurate capture of the signal characteristics and power supply characteristics. For example, in order to measure the power gain and spectrum characteristics of the RF signal, the RF signal needs to be collected at a higher sampling rate to capture its rapidly changing characteristics; when measuring the DC power consumption, the sampling rate is appropriately reduced, but a higher voltage and current measurement accuracy is required. Through the above steps, a hierarchical power amplifier efficiency test system is finally obtained.

[0027] In a specific embodiment, the process of executing step S200 may specifically include the following steps: Conduct characteristic analysis on thermal noise and nonlinear distortion in the hierarchical power amplifier efficiency test system and establish a PI dynamic nonlinear model; A continuous wave signal within a preset frequency range is input into the PI dynamic nonlinear model, distortion data is collected through the first test loop, a nonlinear mapping relationship is established, and a continuous wave response characteristic is obtained; The continuous wave response characteristics are input into the PI dynamic nonlinear model, and the coupler parameters of the second test loop are corrected to obtain the first compensation parameters; According to the first compensation parameter, a 5G modulation signal is input to the power amplifier to be tested, spectrum data is collected through the second test loop to obtain a modulation signal response characteristic, and the modulation signal response characteristic is input into the PI dynamic nonlinear model, and the sampling parameters of the third test loop are optimized to obtain a second compensation parameter; Based on the first compensation parameter and the second compensation parameter, a feedforward compensation calculation is performed to set the measurement range of the continuous wave test model to obtain a first measurement parameter, and based on the first measurement parameter, a feedback compensation calculation is performed to set the ACLR threshold of the modulated signal test model to obtain a second measurement parameter; The test model of the power amplifier to be tested is calibrated according to the first measurement parameter and the second measurement parameter to obtain compensation parameter data.

[0028] Specifically, a PI (proportional-integral) dynamic nonlinear model is established to accurately describe the characteristic behavior of the power amplifier. Thermal noise and nonlinear distortion are two main influencing factors in the power amplifier. Thermal noise mainly comes from the random motion of molecules inside the electronic device, and its power is expressed by the following formula: ; in, is the thermal noise power, is the Boltzmann constant ( J / K), is the absolute temperature in Kelvin, is the bandwidth (in Hertz). Nonlinear distortion is caused by the nonlinear amplification characteristics of the amplifier. Nonlinear distortion will cause distortion of the input signal and generate harmonic components. The harmonic distortion is described by the polynomial of the input-output characteristic, for example: ; in, is the output voltage, is the input voltage, represents the first-order linear gain coefficient, represents the first-order linear gain coefficient, Represents the first-order linear gain coefficient, which represents the nonlinear contribution of different orders. The PI dynamic nonlinear model captures the nonlinear and dynamic response characteristics in the amplifier by adjusting the proportional and integral parameters. A continuous wave signal within a preset frequency range is input into the PI dynamic nonlinear model, and the distortion data is collected through the first test loop. A continuous wave signal is a signal of constant frequency and amplitude, which is used to test the basic response characteristics of the system. During the acquisition process, a power meter is used to measure the input and output signals to determine the specific situation of the distortion. By analyzing the distortion data, a nonlinear mapping relationship between input and output is established, which is described by the following nonlinear function: ; in, Represents the output signal, represents the linear gain part, Represents the nonlinear distortion part. The response characteristics of the amplifier to the continuous wave signal are obtained through the nonlinear mapping relationship, and the continuous wave response characteristic curve is obtained. The continuous wave response characteristics are input into the PI dynamic nonlinear model to correct the coupler parameters in the second test loop. The main function of the coupler is to separate a part of the signal from the power amplifier output signal for measurement, and the coupler itself also has certain nonlinearity and frequency dependence, so it needs to be corrected. Through the continuous wave response characteristics, the coupling loss and nonlinear distortion of the coupler at different frequencies are analyzed, and by adjusting the proportion of the PI model ( ) and integral ( ) parameters are compensated to obtain the corrected first compensation parameters. The compensation process is described by the following formula: ; in, represents the corrected output, represents the error signal, is the proportional gain, is the integral gain, represents the integral variable, Represents a time variable. Correction is performed to ensure that the output signal of the coupler at different frequencies has high accuracy. According to the first compensation parameter, a 5G modulated signal is input to the power amplifier to be tested, and spectrum data is collected through the second test loop to obtain the response characteristics of the modulated signal. The 5G modulated signal has a wide bandwidth and complex spectrum characteristics, which can effectively test the dynamic response and linearity of the power amplifier under complex signal conditions. The amplifier output signal is measured by a spectrum analyzer to obtain the power spectrum density, which is as follows: ; in, represents the power spectral density of the signal, is the time domain signal, is the frequency, represents the length of the observation time window, represents the mathematical expectation, represents the imaginary unit, Time variable. By analyzing the power spectrum data, the response characteristics of the modulated signal are obtained and input into the PI dynamic nonlinear model to optimize the sampling parameters of the third test loop to obtain the second compensation parameters. The optimization process includes adjusting the sampling rate and sampling accuracy to ensure accurate capture of complex signal characteristics. Based on the first compensation parameter and the second compensation parameter, a feedforward compensation calculation is performed to set the measurement range of the continuous wave test model to obtain the first measurement parameter. Feedforward compensation is an active compensation method that adjusts the signal before it enters the power amplifier to compensate for known nonlinearities and distortions in the amplifier. The calculation of feedforward compensation is described by the following formula: ; in, represents the compensated signal, Represents the inverse compensation for the nonlinear part. After compensation, the first measurement parameter is used to set the signal range of the continuous wave test to ensure the accuracy and effectiveness of the test. Feedback compensation calculation is performed based on the first measurement parameter to set the adjacent channel leakage power ratio (ACLR) threshold of the modulated signal test model to obtain the second measurement parameter. Feedback compensation is a closed-loop control method that continuously adjusts the operating point of the amplifier to reduce errors and improve system performance. ACLR is an important indicator for measuring the adjacent channel interference of the power amplifier and is calculated using the following formula: ; in, represents the adjacent channel power, Indicates the main channel power. Through feedback compensation, the ACLR of the amplifier can reach the specified threshold, ensuring the linearity and quality of the output signal. According to the first measurement parameter and the second measurement parameter, the test model of the power amplifier to be tested is calibrated to obtain the final compensation parameter data.

[0029] In a specific embodiment, the process of executing step S300 may specifically include the following steps: According to the compensation parameter data, power control is performed on the continuous wave signal output by the signal generator, and the signal is input into the power amplifier to be tested through the first test loop to obtain first power data; Sampling the first power data in sections, and performing a power scan within a preset frequency range by a power meter to obtain second power data; Performing logarithmic calculation on the power gain according to the first power data and the second power data to obtain power gain data; The output voltage of the DC power supply is sampled at a high speed, a voltage variation curve is collected through a third test loop, compensation is performed based on the first compensation parameter, and compensated voltage data is obtained; The output current of the DC power supply is sampled at a high speed, a current variation curve is collected through a third test loop, compensation is performed based on a second compensation parameter, and compensated current data is obtained; The DC power consumption is calculated on the compensated voltage data and the compensated current data to obtain the DC power consumption data, and the efficiency operation and numerical normalization are performed on the second power data and the DC power consumption data to obtain the standardized efficiency data.

[0030] Specifically, the power of the continuous wave signal output by the signal generator is controlled according to the compensation parameter data. The compensation parameter data is used to correct the output of the signal generator so that it can overcome the inherent deviation and distortion of the system and ensure that the power amplifier can obtain the expected excitation power when receiving the input signal. By adjusting the power control circuit of the signal generator, the output signal has a suitable amplitude and stability. The calibrated signal is input into the power amplifier to be tested through the first test loop to obtain the first power data ( ), representing the input power received by the amplifier. The first power data is sampled in segments to analyze the characteristics of the input signal at different frequencies and power levels. Segmented sampling ensures that the changes of the input signal in the entire frequency range are fully captured, thereby reflecting the response characteristics of the power amplifier in each frequency band. The sampled data is processed by the power meter and a power scan is performed within the preset frequency range to obtain the second power data ( ). The second power data represents the output power of the power amplifier. Scanning at different frequencies can help evaluate the frequency response characteristics, linearity and stability of the amplifier. Based on the first power data and the second power data, the power gain is calculated logarithmically. Power gain is one of the important performance indicators of a power amplifier, describing the degree to which the input signal is amplified in the amplifier to the output signal. The power gain calculation formula is: ; in, Indicates power gain in decibels (dB). represents the output power of the power amplifier, Represents input power. Through logarithmic operation, the linear ratio of power is converted into a logarithmic ratio, so that it can be compared and analyzed within different frequency and power ranges. At the same time, in order to comprehensively evaluate the efficiency performance of the power amplifier, the output voltage of the DC power supply is sampled at high speed, and the voltage change curve is collected through the third test loop. The collected voltage data represents the DC supply voltage of the power amplifier during operation. Since the supply voltage will change due to factors such as temperature and load, it is sampled at high speed to capture the characteristics of dynamic changes. The sampled voltage data is compensated based on the first compensation parameter to eliminate deviations caused by external environment or power supply fluctuations. The compensated voltage data ( ) is described by the following formula: ; in, is the DC voltage data after compensation, is the original sampled voltage data, is the voltage correction amount based on the compensation parameter. The accuracy of the voltage data is ensured through compensation. Similarly, the output current of the DC power supply also needs to be sampled at high speed, and the current change curve is collected through the third test loop. The current sampling data is also affected by temperature and load changes, so compensation processing based on the second compensation parameter is required. The compensated current data ( ) is described by the following formula: ; in, Represents the current data after compensation, Represents the original sampled current data, is the current correction amount based on the compensation parameters. By compensating the current, more accurate current change information is obtained. The DC power consumption is calculated for the compensated voltage data and current data to obtain the DC power consumption data ( ). DC power consumption represents the total power absorbed by the power amplifier from the power supply during operation, and its calculation formula is: ; in, represents the DC power consumption, is the voltage data after compensation, is the current data after compensation. Through calculation, the energy consumption of the power amplifier under different working conditions is quantified. Based on the second power data and the DC power consumption data, efficiency calculation and numerical normalization processing are performed to obtain standardized efficiency data. The efficiency calculation formula is: ; in, Indicates efficiency, is the output power of the power amplifier, is the DC power consumption. Efficiency is one of the important indicators to measure the performance of power amplifiers, indicating how much of the input DC power consumption is effectively converted into output RF power. The efficiency data is numerically normalized so that it can be compared under different input conditions and working states. The normalization formula is: ; in, represents the normalized efficiency data, and Represent the minimum and maximum values ​​of efficiency respectively. Through normalization, the efficiency data is scaled to a unified range to facilitate comparison and evaluation under different conditions.

[0031] In a specific embodiment, the process of executing step S400 may specifically include the following steps: The power gain data is linearized, and the amplitude and phase of the 5G modulated signal are pre-distorted and compensated through a feedforward compensation circuit to obtain a compensated 5G signal; Based on the standardized efficiency data, the bias voltage of the power amplifier to be tested is dynamically adjusted, and a 5G signal is compensated through a first test loop input to obtain a first ACLR measurement value; According to the first ACLR measurement value, the coupler coefficient of the second test loop is corrected, and the center frequency and the scanning bandwidth are set by the spectrum analyzer to obtain the power spectrum scanning data; The power spectrum scanning data is input into the spectrum analysis processing unit, and the power within the bandwidth range of ±5MHz of the center frequency point is integrated to obtain the main channel power. The power spectrum scanning data is analyzed for out-of-band power, and the adjacent channel power is obtained by integrating the power within the bandwidth range of ±10MHz of the center frequency point. Based on the main channel power and the adjacent channel power, performing ACLR calculation and data normalization processing to obtain a second ACLR measurement value; Feedback compensation control is performed on the second ACLR measurement value, and the operating point parameters of the power amplifier to be tested are updated through iterative calculation to obtain ACLR optimization data. Based on the ACLR optimization data, spectrum resampling and cumulative averaging processing are performed on the output signal of the power amplifier to be tested to obtain adjacent channel leakage power ratio data.

[0032] Specifically, the nonlinear characteristics of the power amplifier are analyzed to ensure that the signal can maintain high linearity during transmission. The power gain data reflects the gain change of the amplifier under different input power and frequency conditions. Due to the nonlinear effect of the amplifier, the power gain will produce nonlinear distortion as the input signal changes. In order to improve linearity, the power gain data is linearized to reduce the nonlinear distortion of the amplifier, especially at high power output. A feedforward compensation circuit is used to pre-distort the amplitude and phase of the 5G modulated signal. Feedforward compensation is the pre-processing of the signal before it enters the power amplifier in order to offset the nonlinear distortion of the power amplifier. The pre-distortion compensation is expressed by the mathematical formula: ; in, represents the compensated signal, represents the original input signal, It is the inverse function of the nonlinear model of the power amplifier, which is used to pre-distort the input signal to minimize the amplitude and phase distortion of the output signal. Through pre-distortion compensation, the compensated 5G signal is obtained, which is characterized by being able to offset the distortion introduced by the amplifier itself after input into the amplifier, and finally obtaining the desired linear amplification result at the output. Based on the standardized efficiency data, the bias voltage of the power amplifier to be tested is dynamically adjusted to ensure that the amplifier can operate at the optimal operating point when the compensation signal is input. The adjustment of the bias voltage is described by the following formula: ; in, is the adjusted bias voltage, is the original bias voltage, is a control gain factor, For target efficiency, The efficiency is measured. Through dynamic adjustment, the efficiency of the power amplifier is maximized and the linearity of the signal is guaranteed. After adjusting the bias voltage, the 5G signal is input into the first test loop to compensate, and the output signal is measured using a power meter to obtain the first ACLR (adjacent channel leakage power ratio) measurement value. ACLR is an important indicator for evaluating the adjacent channel interference capability of a power amplifier, which is defined as the ratio of the main channel power to the adjacent channel power: ; in, represents the main channel power, Represents the adjacent channel power. The linearity of the power amplifier and the degree of interference to the adjacent channel signal are evaluated through the first ACLR measurement value. According to the first ACLR measurement value, the coupler coefficient in the second test loop is corrected to ensure that the spectrum analyzer can accurately capture the characteristics of the signal when measuring the signal. The coefficient correction of the coupler is achieved through calibration to compensate for the losses and mismatches in the signal path. After correcting the coupler coefficient, the signal is scanned using a spectrum analyzer, and the center frequency and scanning bandwidth are set to collect spectrum information within the entire channel range. By scanning the power spectrum of the signal, power spectrum scanning data are obtained, which contain the spectrum characteristics of the main channel and its adjacent channels. The power spectrum scanning data is input into the spectrum analysis processing unit, and the power within the bandwidth range of ±5MHz of the center frequency point is integrated to obtain the main channel power. The integral calculation formula is: ; in, represents the main channel power, is the center frequency, is the power spectrum density of the signal (in W / Hz). The total power of the main channel is calculated by integrating the spectrum near the center frequency. Similarly, the power spectrum scan data is analyzed out of band, and the adjacent channel power is obtained by integrating the power within the bandwidth of ±10MHz of the center frequency: ; By calculating the main channel power and the adjacent channel power, ACLR calculation is performed and data normalization is performed to obtain the second ACLR measurement value. Feedback compensation control is performed on the second ACLR measurement value to optimize the operating point of the power amplifier. The feedback compensation control process is to continuously adjust the bias voltage and input power of the power amplifier through iterative calculation until the ACLR reaches the expected target value. The basic formula of feedback control is: ; in, is the control gain factor, is the target ACLR value, is the measured ACLR value. Through this feedback compensation process, the ACLR error is gradually reduced, and finally the ACLR optimization data is obtained, which significantly improves the adjacent channel leakage performance of the power amplifier. According to the ACLR optimization data, the output signal of the power amplifier to be measured is spectrally resampled and cumulatively averaged to reduce random noise and transient interference in the measurement. The spectrum resampling process is to ensure that the resolution of the spectrum data is high enough to accurately reflect the spectral characteristics of the signal, while the cumulative average processing is used to eliminate random errors, making the measurement results more stable and reliable. Through spectrum resampling and cumulative average processing, the adjacent channel leakage power ratio data is finally obtained, which reflects the spectral characteristics and linearity performance of the power amplifier under different working conditions.

[0033] In a specific embodiment, the process of executing step S500 may specifically include the following steps: The power gain data is processed linearly in sections according to the preset frequency sections, and an interpolation operation is performed according to the gain change rate of each frequency point to obtain a gain change curve; The gain change curve is matched with the standardized efficiency data, and the efficiency-frequency function relationship is established by a cubic spline interpolation algorithm to obtain a first efficiency characteristic curve; Based on the first efficiency characteristic curve, power scanning mapping is performed on the adjacent channel leakage power ratio data, and an efficiency-power function relationship is established by least squares fitting to obtain a second efficiency characteristic curve; According to the first efficiency characteristic curve and the second efficiency characteristic curve of the continuous wave test model, performing efficiency analysis calculation of the continuous wave state to obtain first state standardized efficiency data; Inputting the first efficiency characteristic curve and the second efficiency characteristic curve of the modulation signal test model into the analysis unit, performing efficiency analysis calculation of the modulation signal state, and obtaining standardized efficiency data of the second state; Performing a weighted comprehensive operation on the first state standardized efficiency data and the second state standardized efficiency data, establishing a total efficiency distribution model through a state weight matrix, and obtaining a total efficiency curve; Based on the total efficiency curve, isolation efficiency analysis is performed on the continuous wave state and the modulated signal state respectively to obtain isolation efficiency parameters. Hierarchical analysis is performed on the isolation efficiency parameters and a multi-layer efficiency evaluation model is established to obtain hierarchical efficiency analysis results.

[0034] Specifically, the power gain data is linearly segmented according to the preset frequency bands. The power gain data represents the gain characteristics of the amplifier at different frequencies, and the entire frequency range is decomposed into several smaller intervals to capture the gain variation characteristics with frequency. In each frequency band, the gain data is linearly fitted, and interpolation is performed based on the gain change rate of each frequency point to obtain the gain variation trend at different frequencies and form a gain variation curve. The gain change rate reflects the rate of change of the power amplifier gain with frequency, which helps to determine the response characteristics of the power amplifier under different working conditions. The interpolation operation uses the linear interpolation method, and the specific formula is: ; in, is the gain value after interpolation, and The adjacent frequency points and The corresponding gain value is is the frequency where the interpolation point is located. Through interpolation, the gain change curve in the entire frequency range is obtained. The gain change curve is matched with the standardized efficiency data to determine the efficiency performance under different gain conditions. In order to describe the functional relationship between efficiency and frequency, the cubic spline interpolation algorithm is used to establish the functional relationship between efficiency and frequency, and the first efficiency characteristic curve is obtained. Cubic spline interpolation is a curve fitting method that divides the interpolation area into multiple segments, each segment is described by a cubic polynomial, and the continuity of the function and its first-order and second-order derivatives is maintained between segments to obtain a smooth efficiency characteristic curve. The cubic spline interpolation formula is: ; in, For the The interpolation function within the segment, represents the constant term coefficient of the cubic spline function, represents the coefficient of the first-order term of the cubic spline function, represents the quadratic coefficient of the cubic spline function, represents the cubic coefficient of the cubic spline function, is the starting frequency of the segment. By solving these coefficients, the functional relationship between efficiency and frequency is obtained, forming the first efficiency characteristic curve, which reflects the efficiency performance of the amplifier under different frequency conditions. Based on the first efficiency characteristic curve, the adjacent channel leakage power ratio (ACLR) data is power scan mapped to evaluate the relationship between efficiency and power. ACLR data represents the linearity of the power amplifier and its interference capability to adjacent channels. By power scanning the ACLR data, the linear performance of the amplifier under different output power conditions is determined. In order to establish the functional relationship between efficiency and power, the least squares fitting method is used. The goal of the fitting process is to make the fitting curve as close as possible to the actual ACLR data to obtain the second efficiency characteristic curve. The objective function of the least squares fitting is: ; in, For the The efficiency value of each measuring point, For the The output power of each measurement point is is the required fitting coefficient, represents the total number of measurement points, Represents the index number of the measurement point, from 1 to n. By minimizing the objective function, the fitted efficiency-power function relationship is obtained to form a second efficiency characteristic curve, which is used to describe the efficiency performance under different output powers. According to the first efficiency characteristic curve and the second efficiency characteristic curve, the efficiency analysis calculation under the continuous wave state is performed to obtain the standardized efficiency data under the first state. The efficiency analysis of the continuous wave test model mainly focuses on the efficiency performance of the power amplifier under constant input conditions. The purpose of the standardization process is to eliminate the differences in test conditions and ensure the comparability of different test results. The calculation formula for the standardized efficiency is: ; in, is the standardized efficiency, is the actual measured efficiency, and are the minimum and maximum values ​​of efficiency, respectively. The first efficiency characteristic curve and the second efficiency characteristic curve of the modulation signal test model are input into the analysis unit to perform the efficiency analysis calculation of the modulation signal state and obtain the standardized efficiency data in the second state. The modulation signal test model reflects the efficiency performance of the power amplifier when processing complex modulation signals. The modulation signal has more complex spectral characteristics, so the impact on efficiency is more significant. Through similar standardization processing, the standardized efficiency data in the modulation signal state is obtained. A weighted comprehensive operation is performed on the standardized efficiency data of the first state and the second state to establish a total efficiency distribution model and obtain a total efficiency curve. The weighted comprehensive operation formula is: ; in, is the overall efficiency, and are the weight coefficients of the continuous wave state and the modulated signal state, and These are the standardized efficiency data under these two states respectively. By setting appropriate weights, the contribution of different working states to the total efficiency is highlighted. Based on the total efficiency curve, isolation efficiency analysis is performed on the continuous wave state and the modulated signal state respectively to obtain the isolation efficiency parameters. The efficiency performance of the power amplifier under different working states is evaluated separately to clarify the impact of each working state on the overall efficiency. The isolation efficiency parameters decompose the efficiency data to obtain the independent efficiency performance of each state. A hierarchical analysis is performed on the isolation efficiency parameters, and a multi-layer efficiency evaluation model is established to obtain the hierarchical efficiency analysis results. Hierarchical analysis is a method for structured evaluation of complex systems. By analyzing the isolation efficiency parameters layer by layer, the degree of influence of different factors on the efficiency is determined. The establishment of a multi-layer efficiency evaluation model can systematically describe the efficiency performance of the power amplifier. The specific model is described by the following formula: ; in, represents the stratification efficiency, For the The weight of the layer, For the Layer efficiency data, Through hierarchical analysis and multi-layer evaluation, a more accurate and comprehensive performance of power amplifier efficiency is obtained.

[0035] In a specific embodiment, the process of executing step S600 may specifically include the following steps: Statistically processing the power gain data and the standardized efficiency data, and calculating the power measurement error under normal temperature to obtain a first error distribution curve; Based on the layered efficiency analysis result, power measurement is performed on the power amplifier to be tested under high temperature, and error correction is performed using a standardized formula to obtain a second error distribution curve; Calculating a root mean square error of power measurement according to the first error distribution curve and the second error distribution curve to obtain power error evaluation data; Perform feature extraction and efficiency error calculation on the standardized efficiency data in the continuous wave state and the modulated signal state to obtain an efficiency error curve, and perform error analysis on the efficiency error curve to obtain weighted efficiency error data; Based on the power error evaluation data and the weighted efficiency error data, the measurement error and the calculation error are comprehensively evaluated to obtain the overall error distribution model, and the overall error distribution model is stratified to obtain the error level parameters; According to the error level parameters, the efficiency test results of the power amplifier to be tested are evaluated for quality, and a power amplifier efficiency test report is generated.

[0036] Specifically, statistical processing is performed on the power gain data and the standardized efficiency data. The power gain data represents the gain characteristics of the power amplifier under different input conditions, while the standardized efficiency data reflects the energy conversion efficiency of the amplifier. The mean, variance, and standard deviation of the measured data are calculated to understand the central tendency and dispersion of the data. The power measurement error is calculated at room temperature to evaluate the power measurement deviation caused by the measurement equipment, environmental conditions, and random factors. The power measurement error is represented by the difference between the measured value and the true value. The error calculation formula is: ; in, represents the power measurement error, is the measured power value, is the true power value. By performing statistical analysis on the error data, a first error distribution curve is drawn, which reflects the probability distribution of power measurement errors under normal temperature. Based on the results of the layered efficiency analysis, power measurements are performed on the power amplifier under test under high temperature to evaluate the impact of temperature on power measurement. Under high temperature conditions, the gain and efficiency performance of the power amplifier will change, so it is necessary to determine the extent of these changes through measurement. By analyzing the power measurement data under high temperature conditions and using standardized formulas for error correction, systematic deviations caused by temperature changes can be eliminated. The expression of the standardized formula is: ; in, is the corrected power, is the measured power, is the temperature coefficient, is the reference temperature, is the temperature during measurement. Through the correction process, the second error distribution curve is obtained, which reflects the distribution of power measurement error under high temperature. According to the first error distribution curve and the second error distribution curve, the root mean square error of power measurement is calculated to obtain power error evaluation data. The root mean square error is an important indicator to measure the size of the measurement error, and its calculation formula is: ; Among them, RMSE means root mean square error, is the number of measurement data, For the The power error of each measurement point. By calculating RMSE, the error level of power measurement is obtained. Feature extraction and efficiency error calculation are performed on the standardized efficiency data in the continuous wave state and the modulated signal state to evaluate the efficiency performance of the amplifier in different working states. Feature extraction includes the calculation of the mean, peak value and variation range of the efficiency data, while the calculation of the efficiency error is performed by comparing the difference between the actual efficiency and the theoretical efficiency. The efficiency error calculation formula is: ; in, represents the efficiency error, is the measured efficiency, is the efficiency under ideal conditions. By analyzing the efficiency error curve, the distribution characteristics of the efficiency error are obtained, and the weighted efficiency error data is obtained. The calculation of the weighted efficiency error data is based on the weights of different working states, taking into account the efficiency errors of each state. The calculation formula is: ; in, and are the weights of the continuous wave state and the modulated signal state, and are the efficiency errors in these two states respectively. The influence of different states on the overall efficiency is reflected by the reasonable setting of weights. Based on the power error evaluation data and the weighted efficiency error data, the measurement error and the calculation error are comprehensively evaluated to obtain the overall error distribution model, which reflects the overall error level of the power amplifier under different working conditions. The establishment of the overall error distribution model is described by the following formula: ; in, is the overall error, is the weighted power error, is the weighted efficiency error. By stratifying the data of the overall error distribution model, the error level parameters are obtained. These parameters are used to classify different error levels so as to evaluate the impact of the error. According to the error level parameters, the efficiency test results of the power amplifier to be tested are evaluated and a power amplifier efficiency test report is generated. By comparing the efficiency test results with the preset standards, it is determined whether the performance of the amplifier meets the requirements. The test report contains power gain, efficiency performance, error distribution, and quality evaluation results.

[0037] The above describes the RF module power amplifier efficiency test method in the embodiment of the present application. The following describes the RF module power amplifier efficiency test system 10 in the embodiment of the present application. Figure 2In the embodiment of the present application, an embodiment of the radio frequency module power amplifier efficiency test system 10 includes: A connection module 11 is used to connect a signal generator, a power meter, a spectrum analyzer, a DC power supply and a power amplifier to be tested, and to set an impedance matching network and a temperature control unit for the power amplifier to be tested, so as to obtain a hierarchical power amplifier efficiency test system; Establishing module 12, for establishing a continuous wave test model and a modulation signal test model for a layered power amplifier efficiency test system based on a PI dynamic nonlinear model, and obtaining compensation parameter data; The first test module 13 is used to input a first test signal to the power amplifier to be tested according to the compensation parameter data, measure the input and output power and the DC power supply parameters by a power meter, and obtain power gain data and standardized efficiency data; The second test module 14 is used to input a second test signal to the power amplifier to be tested through feedforward-feedback composite control based on the power gain data and the standardized efficiency data, and measure with a spectrum analyzer to obtain adjacent channel leakage power ratio data; The analysis module 15 is used to establish an efficiency-frequency curve and an efficiency-power curve according to the power gain data, the standardized efficiency data and the adjacent channel leakage power ratio data, and to perform a total efficiency analysis and an isolation efficiency analysis on different working states to obtain a hierarchical efficiency analysis result; The evaluation module 16 is used to perform standardization processing on the hierarchical efficiency analysis results, establish power measurement error evaluation and efficiency calculation error evaluation, and obtain a power amplifier efficiency test report.

[0038] Through the coordinated cooperation of the above-mentioned components, by establishing a layered power amplifier efficiency test system, using a π-type impedance matching network and a temperature control unit, the impedance matching problem and temperature drift influence of the test system are effectively solved, and the stability of the test system is improved; based on the compensation mechanism of the PI dynamic nonlinear model, combined with continuous wave testing and modulated signal testing, accurate compensation for the nonlinear characteristics of the power amplifier is achieved, and the test accuracy is significantly improved; by adopting a feedforward-feedback composite control strategy, the accuracy of ACLR measurement is effectively improved by dynamically adjusting the working state of the power amplifier, making the test results more reliable; a multi-layer efficiency analysis system is established, and through total efficiency analysis and isolation efficiency analysis, a comprehensive evaluation of the efficiency characteristics of the power amplifier under different working states is achieved; through a comprehensive analysis of power measurement errors and efficiency calculation errors, the accuracy of RF module power amplifier efficiency testing is improved.

[0039] See also Figure 3 , Figure 3This is a schematic block diagram of the structure of an electronic device 300 provided in an embodiment of the present application. The electronic device 300 includes a processor 301 and a memory 302. The processor 301 and the memory 302 are connected via a system bus 303, wherein the memory 302 may include a non-volatile storage medium and an internal memory.

[0040] The non-volatile storage medium can store a computer program. The computer program includes program instructions, and when the program instructions are executed by the processor 301, the processor 301 can execute any of the above-mentioned methods for testing the efficiency of a radio frequency module power amplifier.

[0041] The processor 301 is used to provide computing and control capabilities to support the operation of the entire electronic device 300 .

[0042] The internal memory provides an environment for the operation of the computer program in the non-volatile storage medium. When the computer program is executed by the processor 301, the processor 301 can execute any of the above-mentioned RF module power amplifier efficiency testing methods.

[0043] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a partial structure related to the present application scheme, and does not constitute a limitation on the electronic device 300 involved in the present application scheme. The specific electronic device 300 may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0044] It should be understood that the processor 301 may be a central processing unit (CPU), and the processor 301 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0045] It should be noted that technicians in the relevant field can clearly understand that for the convenience and simplicity of description, the specific working process of the electronic device 300 described above can refer to the corresponding process of the aforementioned RF module power amplifier efficiency test method, and will not be repeated here.

[0046] An embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by one or more processors, the one or more processors implement the RF module power amplifier efficiency testing method provided in the embodiment of the present application.

[0047] The computer-readable storage medium may be an internal storage unit of the electronic device 300 in the aforementioned embodiment, such as a hard disk or memory of the electronic device 300. The computer-readable storage medium may also be an external storage device of the electronic device 300, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped with the electronic device 300.

[0048] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems, systems and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0049] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions to enable an electronic device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0050] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for testing the efficiency of a radio frequency module power amplifier, characterized in that: The method comprises: Connecting a signal generator, a power meter, a spectrum analyzer, and a DC power supply to a power amplifier to be tested, and setting an impedance matching network and a temperature control unit for the power amplifier to be tested to obtain a hierarchical power amplifier efficiency test system; Based on the PI dynamic nonlinear model, a continuous wave test model and a modulation signal test model are established for the layered power amplifier efficiency test system to obtain compensation parameter data; According to the compensation parameter data, a first test signal is input to the power amplifier to be tested, and input and output power and direct current power supply parameters are measured by a power meter to obtain power gain data and standardized efficiency data; Based on the power gain data and the standardized efficiency data, a second test signal is input to the power amplifier to be tested through feedforward-feedback composite control, and a spectrum analyzer is used for measurement to obtain adjacent channel leakage power ratio data; According to the power gain data, the standardized efficiency data and the adjacent channel leakage power ratio data, an efficiency-frequency curve and an efficiency-power curve are established, and a total efficiency analysis and an isolation efficiency analysis are performed on different working states to obtain a hierarchical efficiency analysis result; The hierarchical efficiency analysis results are standardized, power measurement error evaluation and efficiency calculation error evaluation are established, and a power amplifier efficiency test report is obtained.

2. The method for testing the efficiency of a radio frequency module power amplifier according to claim 1, characterized in that: The signal generator, the power meter, the spectrum analyzer, and the DC power supply are connected to the power amplifier to be tested, and an impedance matching network and a temperature control unit are set for the power amplifier to be tested, so as to obtain a hierarchical power amplifier efficiency test system, including: An output end of the signal generator is connected to an input end of the power amplifier to be tested by radio frequency, and a power meter is connected to the output end of the power amplifier to be tested through a signal cable to obtain a first test loop; A coupler is provided between the input end of the spectrum analyzer and the output end of the power amplifier to be tested, and a signal is coupled through the coupler to obtain a second test loop; Connecting the positive and negative electrodes of the DC power supply to the power supply end of the power amplifier to be tested, and connecting the output voltage and current sampling ports of the DC power supply to obtain a third test loop; Based on the first test loop, the second test loop and the third test loop, connecting a π-type impedance matching network to the input end and the output end of the power amplifier to be tested, performing an impedance matching operation, and obtaining impedance matching parameters; Installing a temperature sensor and a heating and cooling device on the power amplifier to be tested, collecting temperature data through the temperature sensor, controlling the heating and cooling device, and obtaining temperature control parameters; According to the impedance matching parameters and the temperature control parameters, the test data of the first test loop, the second test loop and the third test loop are collected and set, and the sampling timing and sampling accuracy are adjusted to obtain a layered power amplifier efficiency test system.

3. The method for testing the efficiency of a radio frequency module power amplifier according to claim 2, characterized in that: The method of establishing a continuous wave test model and a modulation signal test model for the hierarchical power amplifier efficiency test system based on the PI dynamic nonlinear model to obtain compensation parameter data includes: Performing characteristic analysis on thermal noise and nonlinear distortion in the hierarchical power amplifier efficiency test system, and establishing a PI dynamic nonlinear model; Inputting a continuous wave signal within a preset frequency range into the PI dynamic nonlinear model, collecting distortion data through the first test loop, establishing a nonlinear mapping relationship, and obtaining a continuous wave response characteristic; Inputting the continuous wave response characteristic into the PI dynamic nonlinear model, correcting the coupler parameters of the second test loop, and obtaining a first compensation parameter; According to the first compensation parameter, a 5G modulation signal is input to the power amplifier to be tested, spectrum data is collected through the second test loop to obtain a modulation signal response characteristic, and the modulation signal response characteristic is input into the PI dynamic nonlinear model, and the sampling parameters of the third test loop are optimized to obtain a second compensation parameter; Based on the first compensation parameter and the second compensation parameter, a feedforward compensation calculation is performed to set a measurement range of a continuous wave test model to obtain a first measurement parameter, and based on the first measurement parameter, a feedback compensation calculation is performed to set an ACLR threshold of a modulated signal test model to obtain a second measurement parameter; The test model of the power amplifier to be tested is calibrated according to the first measurement parameter and the second measurement parameter to obtain compensation parameter data.

4. The method for testing the efficiency of a radio frequency module power amplifier according to claim 3, characterized in that: The method of inputting a first test signal to the power amplifier to be tested according to the compensation parameter data, measuring input and output power and direct current power supply parameters by a power meter, and obtaining power gain data and standardized efficiency data comprises: According to the compensation parameter data, power control is performed on the continuous wave signal output by the signal generator, and the signal is input into the power amplifier to be tested through the first test loop to obtain first power data; Sampling the first power data in sections, and performing a power scan within the preset frequency range by the power meter to obtain second power data; Performing logarithmic calculation on power gain according to the first power data and the second power data to obtain power gain data; Performing high-speed sampling on the output voltage of the DC power supply, collecting a voltage variation curve through the third test loop, and performing compensation based on the first compensation parameter to obtain compensated voltage data; Performing high-speed sampling on the output current of the DC power supply, collecting a current variation curve through the third test loop, and performing compensation based on the second compensation parameter to obtain compensated current data; Direct current power consumption is calculated on the compensated voltage data and the compensated current data to obtain direct current power consumption data, and efficiency calculation and numerical normalization are performed on the second power data and the direct current power consumption data to obtain standardized efficiency data.

5. The method for testing the efficiency of a radio frequency module power amplifier according to claim 4, characterized in that: The method of inputting a second test signal to the power amplifier to be tested through feedforward-feedback composite control based on the power gain data and the standardized efficiency data, and measuring with a spectrum analyzer to obtain adjacent channel leakage power ratio data includes: Linearizing the power gain data, and performing pre-distortion compensation on the amplitude and phase of the 5G modulated signal through a feedforward compensation circuit to obtain a compensated 5G signal; Based on the standardized efficiency data, dynamically adjust the bias voltage of the power amplifier to be tested, input the compensated 5G signal through the first test loop, and obtain a first ACLR measurement value; According to the first ACLR measurement value, the coupler coefficient of the second test loop is corrected, and the center frequency and the scanning bandwidth are set by the spectrum analyzer to obtain power spectrum scanning data; The power spectrum scanning data is input into the spectrum analysis processing unit, and the power within the bandwidth range of ±5MHz of the center frequency point is integrated to obtain the main channel power, and the out-of-band power analysis is performed on the power spectrum scanning data, and the adjacent channel power is obtained by integrating the power within the bandwidth range of ±10MHz of the center frequency point; Based on the main channel power and the adjacent channel power, performing ACLR calculation and data normalization processing to obtain a second ACLR measurement value; Feedback compensation control is performed on the second ACLR measurement value, the operating point parameters of the power amplifier to be tested are updated through iterative calculation to obtain ACLR optimization data, and based on the ACLR optimization data, spectrum resampling and cumulative averaging processing are performed on the output signal of the power amplifier to be tested to obtain adjacent channel leakage power ratio data.

6. The method for testing the efficiency of a radio frequency module power amplifier according to claim 5, characterized in that: According to the power gain data, the standardized efficiency data and the adjacent channel leakage power ratio data, an efficiency-frequency curve and an efficiency-power curve are established, and a total efficiency analysis and an isolation efficiency analysis are performed on different working states to obtain a hierarchical efficiency analysis result, including: The power gain data is processed linearly in sections according to preset frequency sections, and an interpolation operation is performed according to the gain change rate of each frequency point to obtain a gain change curve; Matching the gain change curve with the standardized efficiency data, establishing an efficiency-frequency function relationship through a cubic spline interpolation algorithm, and obtaining a first efficiency characteristic curve; Based on the first efficiency characteristic curve, power scanning mapping is performed on the adjacent channel leakage power ratio data, and an efficiency-power function relationship is established by least squares fitting to obtain a second efficiency characteristic curve; According to the first efficiency characteristic curve and the second efficiency characteristic curve of the continuous wave test model, performing efficiency analysis calculation of the continuous wave state to obtain first state standardized efficiency data; Inputting the first efficiency characteristic curve and the second efficiency characteristic curve of the modulation signal test model into an analysis unit, performing efficiency analysis calculation of the modulation signal state, and obtaining second state standardized efficiency data; Performing a weighted comprehensive operation on the first-state standardized efficiency data and the second-state standardized efficiency data, establishing a total efficiency distribution model through a state weight matrix, and obtaining a total efficiency curve; Based on the total efficiency curve, isolation efficiency analysis is performed on the continuous wave state and the modulated signal state respectively to obtain isolation efficiency parameters, and hierarchical analysis and multi-layer efficiency evaluation model are performed on the isolation efficiency parameters to obtain hierarchical efficiency analysis results.

7. The method for testing the efficiency of a radio frequency module power amplifier according to claim 6, characterized in that: The step of standardizing the hierarchical efficiency analysis results, establishing a power measurement error evaluation and an efficiency calculation error evaluation, and obtaining a power amplifier efficiency test report includes: Performing statistical processing on the power gain data and the standardized efficiency data, and calculating the power measurement error under normal temperature to obtain a first error distribution curve; Based on the layered efficiency analysis result, power measurement is performed on the power amplifier to be tested under a high temperature state, and error correction is performed using a standardized formula to obtain a second error distribution curve; Calculating a root mean square error of power measurement according to the first error distribution curve and the second error distribution curve to obtain power error evaluation data; Performing feature extraction and efficiency error calculation on the standardized efficiency data in the continuous wave state and the modulated signal state to obtain an efficiency error curve, and performing error analysis on the efficiency error curve to obtain weighted efficiency error data; Based on the power error evaluation data and the weighted efficiency error data, a comprehensive evaluation is performed on the measurement error and the calculation error to obtain an overall error distribution model, and data stratification is performed on the overall error distribution model to obtain an error level parameter; According to the error level parameter, the efficiency test result of the power amplifier to be tested is evaluated for quality, and a power amplifier efficiency test report is generated.

8. A radio frequency module power amplifier efficiency test system, characterized in that: Used to perform the RF module power amplifier efficiency testing method according to any one of claims 1 to 7, the RF module power amplifier efficiency testing system comprising: A connection module is used to connect a signal generator, a power meter, a spectrum analyzer, a DC power supply and a power amplifier to be tested, and to set an impedance matching network and a temperature control unit for the power amplifier to be tested, so as to obtain a hierarchical power amplifier efficiency test system; An establishment module is used to establish a continuous wave test model and a modulation signal test model for the hierarchical power amplifier efficiency test system based on a PI dynamic nonlinear model to obtain compensation parameter data; A first test module, configured to input a first test signal to the power amplifier to be tested according to the compensation parameter data, measure input and output power and direct current power supply parameters through a power meter, and obtain power gain data and standardized efficiency data; A second test module is used to input a second test signal to the power amplifier to be tested through feedforward-feedback composite control based on the power gain data and the standardized efficiency data, and measure with a spectrum analyzer to obtain adjacent channel leakage power ratio data; An analysis module, used to establish an efficiency-frequency curve and an efficiency-power curve according to the power gain data, the standardized efficiency data and the adjacent channel leakage power ratio data, perform total efficiency analysis and isolation efficiency analysis on different working states, and obtain a hierarchical efficiency analysis result; The evaluation module is used to perform standardization processing on the hierarchical efficiency analysis results, establish power measurement error evaluation and efficiency calculation error evaluation, and obtain a power amplifier efficiency test report.

9. An electronic device, characterized in that: The electronic device comprises: a memory and at least one processor, wherein instructions are stored in the memory; The at least one processor calls the instructions in the memory so that the electronic device executes the RF module power amplifier efficiency testing method as described in any one of claims 1-7.

10. A computer-readable storage medium having instructions stored thereon, characterized in that: When the instruction is executed by the processor, the RF module power amplifier efficiency testing method as described in any one of claims 1-7 is implemented.

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