A test assembly for a radio frequency amplifier

Abstract

The invention discloses a test component for a radio frequency amplifier, relates to the technical field of radio frequency amplifier testing, and comprises: an automatic feeding and conveying component, which is installed on the side end of a front-end background noise detection component through a supporting structure, and is used to form a uniform speed conveying operation according to the speed of the detection rate. By cooperating with an integrated detection component, a dynamic equalization adjustment component and a front-end background noise detection component, the versatility and production efficiency of the equipment are improved, the background noise detection and radio frequency signal detection functions are further integrated, the overall performance and data accuracy of the test system are improved, the synchronous detection of multiple parameters is realized, and the trouble of frequently changing the detection connection lines and adjusting the instrument settings in traditional tests is avoided, the operation process is further simplified, the risk of human operation errors is reduced, and the input and output impedances and operating frequencies can be automatically adapted to the changes, the time waste and operation complexity caused by the calibration process are reduced, and the test efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of radio frequency amplifier testing, and in particular to a testing component of a radio frequency amplifier. Background Art

[0002] RF power amplifiers are important components of various wireless transmitters. RF amplifiers can be divided into high-gain amplifiers, low-noise amplifiers, medium- and high-power amplifiers. The core of the amplifier circuit is a microwave transistor. From a physiological point of view, any sound that interferes with people's rest, study, and work, as well as the sound that people want to hear, that is, unwanted sound, is collectively referred to as noise.

[0003] At present, in the process of testing RF amplifiers, point-to-point calibration is usually performed based on standard signal sources and high-precision measuring instruments. Calibration of multiple frequency points and different power levels is required, which is complicated, resulting in many manual operations and low automation. Testing different parameters requires multiple connections and adjustments to the instrument, resulting in a long instrument stabilization time after each test, resulting in low test efficiency. When testing weak and strong signals, due to the high noise floor and narrow linear dynamic range of the component, small signals are submerged in noise, and large signals are prone to nonlinear distortion, resulting in the inability to accurately measure the linear and nonlinear performance of different power amplifiers at the same time. Therefore, it is necessary to propose a test component for RF amplifiers. Summary of the invention

[0004] The purpose of the present invention is to provide a test component for a radio frequency amplifier to solve the problem proposed in the above-mentioned background technology that, during the test process of the radio frequency amplifier, point-to-point calibration is usually performed based on a standard signal source and a high-precision measuring instrument. Calibration of multiple frequency points and different power levels is required, and the operation is complicated, resulting in a lot of manual operations and a low degree of automation. When testing different parameters, the instrument needs to be connected and adjusted multiple times, resulting in a long instrument stabilization time after each test, causing low test efficiency. In addition, when testing weak and strong signals, due to the high noise floor and narrow linear dynamic range of the component, small signals are submerged in noise, and large signals are easily distorted, resulting in the inability to accurately measure the linear and nonlinear performance of different power amplifiers at the same time.

[0005] To achieve the above object, the present invention provides the following technical solution: a test assembly for a radio frequency amplifier, comprising:

[0006] An automatic feeding and conveying assembly is installed on the side of the front end noise detection assembly through a supporting structure, and is used to form a uniform speed conveying operation according to the speed of the detection rate;

[0007] A transverse electromagnetic linear guide rail, which is fastened to the side surface of the support structure and is used to drive the displacement rod and the integrated detection component to form a fixed-point guided sliding in the guide groove of the slotted plate;

[0008] The dynamic balance adjustment component is installed on the surface of the feedback induction detection plate to form a symmetrical installation arrangement. When the device to be detected reaches the surface of the feedback induction detection plate, it detects the input and output impedance of the device to be detected and the electrical parameters of the operating frequency, and automatically adjusts the parameters of its own circuit network, so that the device to be detected and the dynamic balance adjustment component form the best electrical matching detection and regulation;

[0009] The integrated detection component is installed on the top of the displacement rod and is used to synchronously detect the input power, output power, output signal spectrum and noise coefficient of the device under test while the dynamic equalization adjustment component is detecting.

[0010] Preferably, the integrated detection component includes:

[0011] A top slot frame, an angle control motor, a rotating tooth and a connecting rack, the top slot frame and the top of the displacement rod are tightly connected, the rotating tooth is rotatably connected inside the top slot frame, the angle control motor drives the rotating tooth and the connecting rack to form an engaged connection, the side end of the connecting rack is tightly connected with a propulsion guide rod, the bottom of the propulsion guide rod is rotatably connected with a ball joint, the side wall surface of the displacement rod is tightly connected with a connecting rod, and a bogie is installed on the top end of the side of the connecting rod.

[0012] Preferably, the center end of the bogie and the bottom of the outer rod body of the propulsion guide rod form a fastening connection, the bottom of the bogie is fasteningly connected with a sliding guide rod, the outer sliding connection of the sliding guide rod is connected with a displacement sliding rotating frame, and the side end of the displacement sliding rotating frame is installed with a rotating micro-control motor.

[0013] Preferably, the middle end of the displacement sliding rotating frame is rotatably connected to a positioning propulsion cylinder, the top of the positioning propulsion cylinder and the bottom of the ball joint form a connection setting, the front end of the positioning propulsion cylinder is connected to a spectrum analyzer, the front end of the spectrum analyzer is installed with a power sensor, and the side end of the power sensor is installed with a signal source detection connection end.

[0014] Preferably, the automatic feeding and conveying assembly comprises:

[0015] A driving gear rotating structure, a shift rack and a device body placement frame, wherein the adjusting gear and the shift rack in the driving gear rotating structure form a meshing connection, driving the device body placement frame to form a sliding connection on the top surface of the supporting structure, and a guide slot frame is provided at the bottom of the device body placement frame, and the guide slot frame is used to transport the device body to the surface of the feedback sensing detection plate.

[0016] Preferably, the front-end background noise detection component includes:

[0017] A support rod frame, a lifting cylinder, a connecting plate and a rotating groove frame, wherein the lifting cylinder is installed on the top of the support rod frame, the connecting plate and the top of the lifting cylinder form a fastening connection, the bottom side end of the connecting plate and the left end of the rotating groove frame form a fastening connection, the right end of the rotating groove frame is fastened with a high-performance low-noise amplifier, a sliding side rail is installed on the top surface of the support rod frame, the high-performance low-noise amplifier is located at the top of the sliding side rail and is slidably connected, and the side end of the high-performance low-noise amplifier is connected to a high-precision variable attenuator connection end.

[0018] Preferably, the dynamic balance adjustment component includes:

[0019] A lateral displacement guide rail, a displacement sliding seat, a network topology switcher, a varactor diode detection end, an array-type capacitance detection sensor and an array-type inductance detection sensor. The lateral displacement guide rail is arranged in two groups, and the two groups of lateral displacement guide rails are symmetrically arranged on the surface of the feedback sensing detection plate. The displacement sliding seat drives the network topology switcher to slide and connect inside the lateral displacement guide rail.

[0020] Preferably, the array-type capacitance detection sensor and the capacitance element in the network topology switch are connected in parallel, the array-type inductance detection sensor and the circuit path where the inductance element in the network topology switch is located form a series connection, and the varactor diode detection end is located at the front end of the network topology switch to form an automatic contact setting through the coupling circuit and the node of the device to be detected.

[0021] Preferably, the side of the slotted plate is fastened with a lateral adjustment displacement guide rail, the side end of the lateral adjustment displacement guide rail is slidably connected with a short vertical adjustment guide rail, the side end of the short vertical adjustment guide rail is installed with a mark detection pneumatic clamping structure, and the mark detection pneumatic clamping structure consists of a mark detector and a pneumatic clamping structure.

[0022] Preferably, an output unloading platform is fastened to the frame side of the transverse adjustment displacement guide rail, and a detection and display host computer structure is installed on the side end of the transverse adjustment displacement guide rail.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the present invention, the multi-angle and multi-position flexible adjustment of the detection element is achieved by controlling the precision mechanical transmission structure composed of the angle motor, rotating teeth, connecting racks, etc. in cooperation with the integrated detection component. In cooperation with the bogie, sliding guide rod and displacement sliding rotating rack, etc., it can adapt to RF amplifiers of different sizes and port layouts, so that when facing the production and testing of multi-model and small batch RF amplifiers, the detection mode can be quickly switched without replacing a large number of adapter tooling, thereby improving the versatility and production efficiency of the equipment, and using the spectrum analyzer to realize data sharing through wireless signal transmission, further integrating the background noise detection and RF signal detection functions, improving the overall performance and data accuracy of the test system, realizing the synchronous detection of multiple parameters, avoiding the trouble of frequently changing the detection connection line and adjusting the instrument settings in traditional testing, further simplifying the operation process, and reducing the risk of human operation errors.

[0025] 2. In the present invention, the network topology switcher is driven to switch to a different circuit topology structure by sliding the displacement sliding seat on the lateral displacement guide rail in cooperation with the dynamic balance adjustment component, so that when the capacitance value is too large and causes poor signal coupling, the network topology switcher switches to a parallel capacitance branch with a smaller capacitance value to improve the signal coupling effect. For the information fed back by the varactor detection end, when it is found that the change in the capacitance value of the varactor affects the resonant frequency of the circuit, the network topology switcher restores the resonant frequency of the circuit to a normal range by changing the resistance and inductance values ​​connected in series or in parallel with it, or adjusting the bias voltage of the varactor, thereby ensuring that the circuit works in the best state and realizing dynamic regulation of the electrical matching between the device to be tested and the dynamic balance adjustment component, so that when facing RF amplifiers of different batches or models, the overall device can automatically adapt to the changes in their input and output impedance and operating frequency, reducing the time waste and operation complexity caused by the calibration process and improving the test efficiency.

[0026] 3. In the present invention, by cooperating with the front-end background noise detection component and utilizing the collaborative work of the high-performance low-noise amplifier and the high-precision variable attenuator connection end, it is possible to effectively amplify weak signals and accurately adjust the signal amplitude when collecting background noise signals, thereby providing a guarantee for subsequent accurate analysis. In the test of the low-noise amplifier, its noise performance can be more accurately evaluated, thus avoiding test errors caused by small signals being submerged by noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the main structure of a test assembly of a radio frequency amplifier of the present invention;

[0028] Figure 2 It is a schematic structural diagram of a side view of a test component of a radio frequency amplifier of the present invention;

[0029] Figure 3It is a structural schematic diagram of a front-end background noise detection component in a test component of a radio frequency amplifier of the present invention;

[0030] Figure 4 In a test component of a radio frequency amplifier of the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0031] Figure 5 In a test component of a radio frequency amplifier of the present invention Figure 2 A schematic diagram of the structure at D of FIG.

[0032] Figure 6 In a test component of a radio frequency amplifier of the present invention Figure 2 A schematic diagram of the structure enlarged at B;

[0033] Figure 7 In a test component of a radio frequency amplifier of the present invention Figure 2 Schematic diagram of the structure enlarged at C;

[0034] Figure 8 The present invention is a flowchart of an operating system in a test assembly of a radio frequency amplifier.

[0035] In the figure: 1. Detection and display host computer structure; 2. Front-end background noise detection component; 201. Support rod frame; 202. Lifting cylinder; 203. Connecting plate; 204. Rotating slot frame; 205. High-performance low-noise amplifier; 206. High-precision variable attenuator connection end; 207. Sliding edge rail; 3. Horizontal electromagnetic linear guide rail; 4. Horizontal adjustment displacement guide rail; 5. Short vertical adjustment guide rail; 6. Mark detection pneumatic clamping structure; 7. Output unloading platform; 8. Slotted plate; 9. Dynamic balance adjustment component; 901. Horizontal displacement guide rail; 902. Displacement sliding seat; 903. Array inductance detection sensor; 904. Network topology switcher; 905. Varactor diode detection end ; 906, array type capacitance detection sensor; 10, guide slot frame; 11, integrated detection assembly; 110, top slot frame; 111, control angle motor; 112, rotating teeth; 113, connecting rack; 114, connecting rod; 115, propulsion guide rod; 116, bogie; 117, displacement sliding rotating frame; 118, ball joint; 119, rotating micro control motor; 1190, positioning propulsion cylinder; 1191, spectrum analyzer; 1192, power sensor; 1193, signal source detection connection terminal; 12, automatic feeding and conveying assembly; 120, driving gear rotation structure; 121, shifting rack; 122, test body placement frame; 13, feedback induction detection plate. DETAILED DESCRIPTION

[0036] 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 implementation regulations described are only 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.

[0037] In the present invention, reference is made to Figure 1 - Figure 8 As shown: A test assembly of a radio frequency amplifier, comprising:

[0038] The automatic feeding and conveying assembly 12 is installed on the side of the front end noise detection assembly 2 through a supporting structure, and is used to form a uniform speed conveying operation according to the speed of the detection rate;

[0039] The transverse electromagnetic linear guide rail 3 is fastened to the side surface of the support structure and is used to drive the displacement rod and the integrated detection assembly 11 to form a fixed-point guided sliding in the guide groove of the slotted plate 8;

[0040] The dynamic balance adjustment component 9 is installed on the surface of the feedback sensing detection plate 13 to form a symmetrical installation arrangement. When the device to be detected reaches the surface of the feedback sensing detection plate 13, it detects the input and output impedance of the device to be detected and the electrical parameters of the operating frequency, and automatically adjusts the parameters of its own circuit network, so that the device to be detected and the dynamic balance adjustment component 9 form the best electrical matching detection and regulation;

[0041] The integrated detection component 11 is installed on the top of the displacement rod and is used to synchronously detect the input power, output power, output signal spectrum and noise coefficient of the device under test while the dynamic balance adjustment component 9 is detecting.

[0042] In the present invention, according to Figure 1 , Figure 4 , Figure 5 and Figure 8 As shown, the integrated detection component 11 includes:

[0043] The top slot frame 110, the angle control motor 111, the rotating gear 112 and the connecting rack 113, the top slot frame 110 and the top of the displacement rod form a fastening connection, the rotating gear 112 is rotatably connected inside the top slot frame 110, the angle control motor 111 drives the rotating gear 112 and the connecting rack 113 to form an engaging connection, the side end of the connecting rack 113 is fastened with a propulsion guide rod 115, the bottom of the propulsion guide rod 115 is rotatably connected with a ball joint 118, the side wall surface of the displacement rod is fastened with a connecting rod 114, and a bogie 116 is installed at the top end of the side of the connecting rod 114.

[0044] The center end of the bogie 116 is tightly connected to the bottom of the outer rod body of the propulsion guide rod 115. The bottom of the bogie 116 is tightly connected to the sliding guide rod. The outer sliding guide rod is slidably connected to a displacement sliding rotating frame 117. The side end of the displacement sliding rotating frame 117 is installed with a rotating micro-control motor 119.

[0045] The middle end of the displacement sliding rotating frame 117 is rotatably connected to the positioning propulsion cylinder 1190, the top of the positioning propulsion cylinder 1190 and the bottom of the ball joint 118 form a connection setting, the front end of the positioning propulsion cylinder 1190 is connected to the spectrum analyzer 1191, the front end of the spectrum analyzer 1191 is installed with a power sensor 1192, and the side end of the power sensor 1192 is installed with a signal source detection connection terminal 1193.

[0046] In a specific solution, when the displacement rod reaches the designated detection position driven by the transverse electromagnetic linear guide rail 3, the integrated detection component 11 starts to work, and the rotation gear 112 is driven to rotate by controlling the start of the angle motor 111. Since the rotation gear 112 is meshed with the connecting rack 113, the rotation of the rotation gear 112 causes the connecting rack 113 to produce a linear displacement, so that the propulsion guide rod 115 at the side end of the connecting rack 113 moves accordingly, and is connected to the positioning propulsion cylinder 1190 through the ball joint 118, so as to realize the preliminary positioning adjustment of the subsequent related structures in one direction, so that when detecting RF amplifiers of different sizes or structures, the extension length of the propulsion guide rod 115 can be adjusted by controlling the angle motor 111 to make the spectrum analyzer The detection elements such as the detector 1191 and the power sensor 1192 can be accurately aligned with the corresponding detection port of the RF amplifier. At the same time, the movement of the connecting rack 113 will drive the bogie 116 to move, and the sliding guide rod at the bottom of the bogie 116 slides in the displacement sliding rotating frame 117, so that under the action of the rotating micro-control motor 119, the angle direction of the spectrum analyzer 1191, the power sensor 1192 and related structures can be adjusted. That is, when the detection port of the RF amplifier has a certain angle offset, the rotating micro-control motor 119 can drive the bogie 116 to rotate with the cooperation of its built-in visual sensor, so that the power sensor 1192 and the like can be better coupled with the port to ensure the accuracy of signal transmission. After completing positioning and After the angle is adjusted, the positioning propulsion cylinder 1190 starts to work, and pushes the spectrum analyzer 1191, the power sensor 1192, etc. closer to the port of the RF amplifier as needed to achieve a close connection or an optimal coupling state, so that when it is necessary to accurately measure the output power and signal spectrum of the RF amplifier, the positioning propulsion cylinder 1190 pushes the power sensor 1192 and the spectrum analyzer 1191 to a position very close to the output port to reduce signal transmission loss and interference. Then the power sensor 1192 is started to convert the received RF signal into an electrical signal. For input power detection, the signal source detection connection terminal 1193 receives the input signal from the signal source and guides it to the power sensor 1192 for measurement. For output power detection, the power sensor 1192 directly receives the output signal of the RF amplifier. After the power sensor 1192 converts the RF signal into an electrical signal, it undergoes internal amplification, filtering and other pre-processing, and then is converted into a digital signal by the built-in analog-to-digital converter ADC, which is transmitted to the microprocessor inside the detection and display host computer structure 1 for calculation and processing to obtain an accurate power value, and enables the spectrum analyzer 1191 to analyze the received RF signal at the same time, mix the RF signal, convert the high-frequency signal into an intermediate-frequency signal, and then perform filtering operations to remove unnecessary stray signals and noise. After that, the time domain signal is converted into a frequency domain signal through the fast Fourier transform FFT algorithm to obtain the spectrum distribution of the output signal.By analyzing the harmonic components, spurious signals and other characteristics in the spectrum, the linearity performance of the RF amplifier to be tested is evaluated. That is, when more high-order harmonics appear in the detected spectrum, it indicates that the RF amplifier to be tested has nonlinear distortion. Then, the data detected by the power sensor 1192 and the spectrum analyzer 1191 are transmitted to the microprocessor inside the detection and display host computer structure 1. The microprocessor organizes, analyzes and stores these data, extracts parameters such as harmonic distortion and spectrum flatness, and compares them with corresponding standard parameters to evaluate the linearity and frequency response characteristics of the RF amplifier, and displays them on the detection and display host computer structure 1.

[0047] In the present invention, according to Figure 2 , Figure 7 and Figure 8 As shown, the automatic feeding and conveying assembly 12 includes:

[0048] The driving gear rotating structure 120, the shift rack 121 and the device body placement frame 122, the adjustment gear in the driving gear rotating structure 120 and the shift rack 121 form a meshing connection, driving the device body placement frame 122 to form a sliding connection on the top surface of the supporting structure, and the bottom of the device body placement frame 122 is connected to a guide slot frame 10, which is used to transport the device body to the surface of the feedback sensing detection plate 13.

[0049] In a specific scheme, when the entire test process starts, the device body to be tested is placed on the device body placement rack 122 through an external conveying structure, and then the driving gear rotating structure 120 starts to work, so that the motor inside the driving gear rotating structure 120 drives the adjustment gear to rotate, and utilizes the meshing connection between the adjustment gear and the shift rack 121, so that the rotation of the adjustment gear causes the shift rack 121 to produce linear movement on the top surface of the supporting structure, so that the device body placement rack 122 moves to the guide slot rack 10, and the guide slot rack 10 and the feedback sensing detection plate 13 form a contact connection. When the device body to be tested reaches the guide slot rack 10, the front and rear end positions of the device body to be tested are detected by the photoelectric sensor on the surface of the guide slot rack 10. When the photoelectric sensor sends a signal indicating that the device body to be tested has reached the specified position, the driving gear rotating structure 120 stops operating to ensure that the device body to be tested can be accurately transported to the surface of the feedback sensing detection plate 13, so as to prepare for subsequent detection work.

[0050] In the present invention, according to Figure 1 - Figure 3 and Figure 8 As shown, the front-end background noise detection component 2 includes:

[0051] The supporting rod frame 201, the lifting cylinder 202, the connecting plate 203 and the rotating groove frame 204, the lifting cylinder 202 is installed on the top of the supporting rod frame 201, the connecting plate 203 and the top of the lifting cylinder 202 are tightly connected, the bottom side end of the connecting plate 203 and the left side end of the rotating groove frame 204 are tightly connected, and the right side end of the rotating groove frame 204 is tightly connected with a high-performance low-noise amplifier 205. The top surface of the supporting rod frame 201 is installed with a sliding side rail 207, the high-performance low-noise amplifier 205 is located at the top of the sliding side rail 207 and is slidably connected, and the side end of the high-performance low-noise amplifier 205 is connected with a high-precision variable attenuator connection end 206.

[0052] In a specific solution, when the device to be inspected enters the side detection position of the guide slot frame 10 through the device to be inspected body placement frame 122, the lifting cylinder 202 drives the connecting plate 203 to move in the vertical direction, so that in the initial state, the high-performance low-noise amplifier 205 is at a higher position to avoid interfering with the entry of the device to be inspected. When the detection start signal is received, the piston of the lifting cylinder 202 retracts, causing the connecting plate 203 to descend, thereby driving the rotating slot frame 204 and the high-performance low-noise amplifier 205 to align more accurately with the device to be inspected in the horizontal direction. The high-performance low-noise amplifier 205 is pushed to slide to a precise position on the sliding edge rail 207. When the high-performance low-noise amplifier 205 is accurately positioned, it starts to collect background noise signals, so that signals such as electromagnetic noise in the surrounding environment are detected by the high-performance low-noise amplifier 2 05 is received, and a high-performance low-noise amplifier 205 is used to effectively amplify the weak background noise signal, while minimizing the noise introduced by itself, so that in the detection of the RF communication frequency band in the RF amplifier, the weak signal of the nanovolt level or even the picovolt level can be amplified, and the amplified background noise signal is transmitted to the high-precision variable attenuator connection terminal 206, so that the high-precision variable attenuator connection terminal 206 accurately adjusts the attenuation of the background noise signal according to the preset attenuation amount or according to the signal strength information fed back by the subsequent detection circuit, and adjusts the signal amplitude to a suitable range through the attenuator, so that the background noise signal after attenuation adjustment is transmitted to the spectrum analyzer 1191 through the wireless signal, and then the processed background noise signal is digitized, stored and transmitted to the detection display host computer structure 1 for more in-depth data analysis and recording.

[0053] In the present invention, according to Figure 1 , Figure 6 and Figure 8 As shown, the dynamic balance adjustment component 9 includes:

[0054] The lateral displacement guide rail 901, the displacement sliding seat 902, the network topology switch 904, the varactor diode detection end 905, the array capacitance detection sensor 906 and the array inductance detection sensor 903, the lateral displacement guide rail 901 is set into two groups, the two groups of lateral displacement guide rails 901 are symmetrically arranged on the surface of the feedback sensing detection plate 13, and the displacement sliding seat 902 drives the network topology switch 904 to slide and connect inside the lateral displacement guide rail 901.

[0055] The array-type capacitance detection sensor 906 and the capacitance element in the network topology switch 904 are connected in parallel, the array-type inductance detection sensor 903 and the circuit path where the inductance element in the network topology switch 904 is located form a series connection, and the varactor diode detection end 905 is located at the front end of the network topology switch 904 to form an automatic contact setting through the coupling circuit and the node of the device to be detected.

[0056] In a specific solution, when the object to be detected reaches the surface of the feedback induction detection plate 13, the array capacitance detection sensor 906, the array inductance detection sensor 903 and the variable capacitance diode detection end 905 start to work, wherein the array capacitance detection sensor 906 is connected in parallel with the capacitance element in the network topology switch 904 to monitor the voltage change at both ends of the capacitor in real time, so that in the radio frequency circuit, the influence of the change of the capacitance value on the coupling and filtering of the signal can be understood by accurately measuring the capacitance value, and secondly, the array inductance detection sensor 906 can detect the current state of the circuit. 03 is connected in series in the circuit path where the inductor element is located. By measuring the voltage drop at both ends and the current flowing through it, the inductance value is calculated according to Ohm's law. Through the impedance, resonance and other characteristics of the inductor to the signal in the RF circuit, the circuit performance is evaluated through accurate inductance value measurement. Then the varactor diode detection end 905 is connected to the node of the device to be detected through a coupling circuit to obtain signal information related to the varactor diode. When the voltage change at both ends of the varactor diode is detected, since the capacitance value of the varactor diode will change with the voltage at both ends, the change of its capacitance value and the impact of this change on the entire circuit can be indirectly known. The network topology switch 904 performs corresponding operations according to the parameter information obtained by the array capacitance detection sensor 906, the array inductance detection sensor 903 and the variable capacitance diode detection terminal 905, so that when the capacitance value or the inductance value is detected to deviate from the expected optimal matching range, the control unit in the network topology switch 904 will issue an instruction to slide the displacement sliding seat 902 on the lateral displacement guide rail 901, so as to drive the network topology switch 904 to switch to a different circuit topology structure, so that when the capacitance value or the inductance value deviates from the expected optimal matching range, the network topology switch 904 will switch to a different circuit topology structure. When the capacitance is too large and causes poor signal coupling, the network topology switch 904 switches to a parallel capacitor branch with a smaller capacitance value to improve the signal coupling effect. For the information fed back by the varactor detection end 905, when it is found that the change in the capacitance value of the varactor affects the resonant frequency of the circuit, the network topology switch 904 restores the resonant frequency of the circuit to a normal range by changing the resistance and inductance values ​​connected in series or parallel with it, or adjusting the bias voltage of the varactor, thereby ensuring that the circuit works in the best state and realizing dynamic regulation of the electrical matching between the device to be detected and the dynamic equalization adjustment component.

[0057] In the present invention, according to Figure 1 and Figure 2 As shown, the side of the slotted plate 8 is fastened with a lateral adjustment displacement guide rail 4, the side end of the lateral adjustment displacement guide rail 4 is internally slidably connected with a short vertical adjustment guide rail 5, and the side end of the short vertical adjustment guide rail 5 is installed with a mark detection pneumatic clamping structure 6, which is composed of a mark detector and a pneumatic clamping structure.

[0058] The side of the frame of the transverse adjustment displacement guide rail 4 is fastened with an output unloading platform 7, and the side end of the transverse adjustment displacement guide rail 4 is installed with a detection and display host computer structure 1.

[0059] In a specific scheme, after the detector body passes through the front-end background noise detection component 2, the detector body is transported from the guide slot frame 10 to the surface of the feedback sensing detection plate 13 through the lateral adjustment displacement guide rail 4, the short vertical adjustment guide rail 5, and the mark detection pneumatic clamping structure 6. Secondly, after the electrical matching detection and regulation of the dynamic balance adjustment component 9 and the multi-parameter synchronous detection of the integrated detection component 11, the detector body is clamped from the surface of the feedback sensing detection plate 13 and placed inside the output unloading platform 7 for output operation through the lateral adjustment displacement guide rail 4, the short vertical adjustment guide rail 5, and the mark detection pneumatic clamping structure 6. The rail 4 drives the short vertical adjustment guide rail 5 to move to the specified position in the horizontal direction. Then, after the short vertical adjustment guide rail 5 moves to the appropriate position, the mark detection pneumatic clamping structure 6 starts to work. The pneumatic clamping structure moves first, and generates a clamping force through the expansion and contraction of the cylinder to firmly clamp the body to be inspected to prevent the body to be inspected from displacement or shaking during the subsequent detection and marking process, thereby ensuring the accuracy of the detection. While the body to be inspected is clamped, the mark detector starts to work and performs mark detection on the body to be inspected, so that after the overall detection, the data obtained from this detection can be associated and recorded with the relevant information of the body to be inspected, which is convenient for subsequent data analysis, quality traceability, and production management, and is transmitted to the detection and display host computer structure 1 for further processing.

[0060] The wiring diagrams of the high-performance low-noise amplifier 205, the high-precision variable attenuator connection terminal 206, the array inductance detection sensor 903, the network topology switcher 904, the varactor diode detection terminal 905, the array capacitance detection sensor 906, the control angle motor 111, the rotating micro-control motor 119, the spectrum analyzer 1191, the power sensor 1192, the feedback sensing detection plate 13, the photoelectric sensor and the built-in visual sensor in the present invention are common knowledge in the art, and their working principles are already known technologies. The models are selected according to actual use, so the control method and wiring layout are not explained in detail.

[0061] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A test assembly for a radio frequency amplifier, characterized in that: Included are: An automatic feeding and conveying assembly (12) is installed at the side end of the front end noise detection assembly (2) via a supporting structure, and is used to form a uniform speed conveying operation according to the speed of the detection rate; A transverse electromagnetic linear guide rail (3) is fastened to the side surface of the support structure and is used to drive the displacement rod and the integrated detection component (11) to form a fixed-point guided sliding in the guide groove of the slotted plate (8); A dynamic balance adjustment component (9) is mounted on the surface of the feedback sensing detection plate (13) to form a symmetrical installation arrangement, and is used to automatically adjust the parameters of its own circuit network by detecting the input and output impedances and the electrical parameters of the operating frequency of the device to be detected when the device to be detected reaches the surface of the feedback sensing detection plate (13), so that the device to be detected and the dynamic balance adjustment component (9) form the best electrical matching detection and regulation; The integrated detection component (11) is mounted on the top of the displacement rod and is used to synchronously detect the input power, output power, output signal spectrum and noise coefficient of the device to be detected while the dynamic balance adjustment component (9) is detecting.

2. The test assembly of the radio frequency amplifier according to claim 1, characterized in that: The integrated detection component (11) comprises: A top slot frame (110), an angle control motor (111), a rotating tooth (112) and a connecting rack (113); the top slot frame (110) and the top of the displacement rod are tightly connected; the rotating tooth (112) is rotatably connected inside the top slot frame (110); the angle control motor (111) drives the rotating tooth (112) and the connecting rack (113) to form a meshing connection; the side end of the connecting rack (113) is tightly connected to a propulsion guide rod (115); the bottom of the propulsion guide rod (115) is rotatably connected to a ball joint (118); the side wall surface of the displacement rod is tightly connected to a connecting rod (114); and a bogie (116) is installed at the top end of the side of the connecting rod (114).

3. The test assembly of the radio frequency amplifier according to claim 2, characterized in that: The center end of the bogie (116) is fastened to the bottom of the outer rod body of the propulsion guide rod (115); the bottom of the bogie (116) is fastened to a sliding guide rod; the outside of the sliding guide rod is slidably connected to a displacement sliding rotating frame (117); a rotating micro-control motor (119) is installed on the side end of the displacement sliding rotating frame (117).

4. The test assembly of the radio frequency amplifier according to claim 3, characterized in that: The middle end of the displacement sliding rotating frame (117) is rotatably connected to a positioning propulsion cylinder (1190), the top of the positioning propulsion cylinder (1190) and the bottom of the ball joint (118) are connected, the front end of the positioning propulsion cylinder (1190) is connected to a spectrum analyzer (1191), the front end of the spectrum analyzer (1191) is installed with a power sensor (1192), and the side end of the power sensor (1192) is installed with a signal source detection connection end (1193).

5. The test assembly of the radio frequency amplifier according to claim 1, characterized in that: The automatic feeding and conveying assembly (12) comprises: A driving gear rotating structure (120), a shifting rack (121) and a device-to-be-tested body placement frame (122); the adjusting gear in the driving gear rotating structure (120) and the shifting rack (121) form a meshing connection, driving the device-to-be-tested body placement frame (122) to form a sliding connection on the top surface of the support structure; the bottom of the device-to-be-tested body placement frame (122) is connected to a guide slot frame (10); the guide slot frame (10) is used to transport the device-to-be-tested body to the surface of a feedback induction detection plate (13).

6. The test assembly of the radio frequency amplifier according to claim 1, characterized in that: The front-end background noise detection component (2) comprises: A support rod frame (201), a lifting cylinder (202), a connecting plate (203) and a rotating groove frame (204), wherein the lifting cylinder (202) is mounted on the top of the support rod frame (201), the connecting plate (203) and the top of the lifting cylinder (202) are fastened together, the bottom side end of the connecting plate (203) and the left side end of the rotating groove frame (204) are fastened together, the right side end of the rotating groove frame (204) is fastened together with a high-performance low-noise amplifier (205), a sliding edge rail (207) is mounted on the top surface of the support rod frame (201), the high-performance low-noise amplifier (205) is located at the top of the sliding edge rail (207) and is slidably connected to the top of the sliding edge rail (207), and the side end of the high-performance low-noise amplifier (205) is connected to a high-precision variable attenuator connection end (206).

7. The test assembly for a radio frequency amplifier according to claim 1, characterized in that: The dynamic balance adjustment component (9) comprises: A lateral displacement guide rail (901), a displacement sliding seat (902), a network topology switch (904), a varactor diode detection end (905), an array-type capacitance detection sensor (906), and an array-type inductance detection sensor (903); the lateral displacement guide rail (901) is arranged in two groups, the two groups of lateral displacement guide rails (901) are symmetrically arranged on the surface of a feedback induction detection plate (13), and the displacement sliding seat (902) drives the network topology switch (904) to slide and connect inside the lateral displacement guide rail (901).

8. The test assembly for the radio frequency amplifier according to claim 7, characterized in that: The array-type capacitance detection sensor (906) and the capacitance element in the network topology switch (904) are connected in parallel, the array-type inductance detection sensor (903) and the circuit path where the inductance element in the network topology switch (904) is located are connected in series, and the variable capacitance diode detection end (905) is located at the front end of the network topology switch (904) and forms an automatic contact setting with the node of the object to be detected through a coupling circuit.

9. The test assembly for a radio frequency amplifier according to claim 1, characterized in that: The side of the slotted plate (8) is fastened with a transverse adjustment displacement guide rail (4), the side end of the transverse adjustment displacement guide rail (4) is slidably connected to a short vertical adjustment guide rail (5), and the side end of the short vertical adjustment guide rail (5) is installed with a mark detection pneumatic clamping structure (6), and the mark detection pneumatic clamping structure (6) is composed of a mark detector and a pneumatic clamping structure.

10. The test assembly of the radio frequency amplifier according to claim 9, characterized in that: The frame side of the transverse adjustment displacement guide rail (4) is fastened with an output unloading platform (7), and the side end of the transverse adjustment displacement guide rail (4) is installed with a detection and display host computer structure (1).

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