CN116482509B - Radio frequency circuit testing method and device and related equipment - Google Patents
Radio frequency circuit testing method and device and related equipment Download PDFInfo
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- CN116482509B CN116482509B CN202310275553.7A CN202310275553A CN116482509B CN 116482509 B CN116482509 B CN 116482509B CN 202310275553 A CN202310275553 A CN 202310275553A CN 116482509 B CN116482509 B CN 116482509B
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- 238000000034 method Methods 0.000 claims abstract description 23
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- 229910052802 copper Inorganic materials 0.000 claims description 16
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- 238000010586 diagram Methods 0.000 description 9
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- 238000012372 quality testing Methods 0.000 description 4
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2855—Environmental, reliability or burn-in testing
- G01R31/2856—Internal circuit aspects, e.g. built-in test features; Test chips; Measuring material aspects, e.g. electro migration [EM]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2822—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere of microwave or radiofrequency circuits
Abstract
The application discloses a radio frequency circuit testing method, a device, computer equipment and a storage medium, wherein the method comprises the following steps: logic division is carried out on a circuit contained in the FPCA to be tested to obtain a first radio frequency circuit and a second radio frequency circuit, wherein the first radio frequency circuit comprises an external radio frequency interface, and the second radio frequency circuit does not comprise the external radio frequency interface; electrically connecting the first radio frequency circuit with the second radio frequency circuit; and performing quality test on the first radio frequency circuit and the second radio frequency circuit through the external radio frequency interface to obtain a test result. The application can reduce test ports, lower test cost and improve efficiency and accuracy of radio frequency circuit test.
Description
Technical Field
The present application relates to the field of FPCA product detection technologies, and in particular, to a method and apparatus for testing a radio frequency circuit, a computer device, and a storage medium.
Background
The Vector Network Analyzer (VNA) may also be called as a microwave vector network analyzer, and is a comprehensive microwave measuring instrument capable of performing scanning measurement in a wide frequency band to determine network parameters, and can directly measure complex scattering parameters of active or passive, reversible or irreversible dual-port and single-port networks, and give amplitude and phase frequency characteristics of each scattering parameter in a sweep frequency mode.
The flexible circuit board assembly (flexible printed circuit assembly, FPCA) refers to attaching various element finished products on an FPC blank, and is widely applied to electronic products at present, and is mainly applied to mobile phones, various wearing equipment and the like. FPCAs often contain complex radio frequency circuits (such as mobile phone antennas, including multi-path tuning antennas) that have multiple radio frequency interfaces, and because of factors such as product design, the positions and shapes of these interfaces are inconsistent, and there is no unified standard, various problems exist in quality testing these circuits, such as testing equipment that needs more ports or testing equipment that connects multiple testing equipment in series and parallel to complete circuit testing, and the testing cost is high, and the testing accuracy and the testing efficiency are low.
Therefore, how to efficiently and accurately complete the test of the radio frequency circuit, reduce the test cost, and improve the test accuracy and efficiency is a problem to be solved at present.
Disclosure of Invention
The embodiment of the application provides a radio frequency circuit testing method, a radio frequency circuit testing device, computer equipment and a storage medium, which can reduce testing cost and improve testing efficiency and accuracy.
In order to solve the above technical problems, an embodiment of the present application provides a method for testing a radio frequency circuit, including the following steps: based on a to-be-tested finished flexible circuit board (FPCA), logically dividing a circuit contained in the FPCA to obtain a first radio frequency circuit and a second radio frequency circuit, wherein the first radio frequency circuit comprises an external radio frequency interface, the external radio frequency interface is used for connecting test equipment, the test equipment is used for performing circuit quality test on the FPCA, and the second radio frequency circuit does not comprise the external radio frequency interface; electrically connecting the first radio frequency circuit with the second radio frequency circuit; and performing quality test on the first radio frequency circuit and the second radio frequency circuit through the external radio frequency interface to obtain a test result.
In one possible implementation manner, searching for isolated steel sheet elements in the first radio frequency circuit and the second radio frequency circuit, wherein the circuit influence of the steel sheet elements on the first radio frequency circuit and the second radio frequency circuit is smaller than an influence threshold; changing the circuit characteristics of the steel sheet element so that the circuit influence of the steel sheet element on the first radio frequency circuit and the second radio frequency circuit is greater than the influence threshold; recording a test waveform obtained after the circuit characteristics of the steel sheet element are changed, and comparing the test waveform with the test waveform obtained before the circuit characteristics of the steel sheet element are not changed to obtain a comparison result; based on the comparison result, determining whether the steel sheet element falls off from the first radio frequency circuit or the second radio frequency circuit 。
In another possible implementation manner, the first radio frequency circuit and the second radio frequency circuit are connected by using a metal block with good electrical characteristics, wherein the metal block comprises a copper block.
In another possible implementation manner, a metal copper block is added below the steel sheet element, and the physical specification of the metal copper block is N times that of the steel sheet element, wherein the physical specification comprises volume, and N is a positive integer greater than 1.
In another possible implementation manner, the excitation signal input by the test equipment is received through the external radio frequency interface, and the obtained signal waveform is recorded; and determining the quality of the first radio frequency circuit and the second radio frequency circuit according to the signal waveform.
In order to solve the above technical problem, an embodiment of the present application further provides a radio frequency circuit testing device, including: the division module is used for logically dividing a circuit contained in the FPCA to be tested to obtain a first radio frequency circuit and a second radio frequency circuit, wherein the first radio frequency circuit comprises an external radio frequency interface, the external radio frequency interface is used for connecting test equipment, the test equipment is used for testing the circuit quality of the FPCA, and the second radio frequency circuit does not comprise the external radio frequency interface; the connecting module is used for electrically connecting the first radio frequency circuit with the second radio frequency circuit; and the testing module is used for testing the quality of the first radio frequency circuit and the second radio frequency circuit through the external radio frequency interface to obtain a testing result.
In order to solve the above technical problem, an embodiment of the present application further provides a computer device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor executes the computer program to implement the steps of the above method.
To solve the above technical problem, embodiments of the present application also provide a computer-readable storage medium storing a computer program that implements the steps of the above method when executed by a processor.
According to the radio frequency circuit testing method, the device, the computer equipment and the storage medium, the circuits in the FPCA to be tested are logically divided to find the first radio frequency circuit which is provided with the external radio frequency interface and can be directly connected with the external testing equipment, the second radio frequency circuit which is relatively isolated and can not be directly connected with the external testing equipment is not provided with the external radio frequency interface, and then the first radio frequency circuit and the second radio frequency circuit are electrically connected, so that the second radio frequency circuit can be indirectly connected with the testing equipment through the external radio frequency interface of the first radio frequency circuit, and the testing of the circuit quality is completed. By the mode, the test ports can be effectively reduced, the test cost is reduced, and the efficiency and the accuracy of the radio frequency circuit test are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram of an exemplary system architecture in which the present application may be applied.
FIG. 2 is a flow chart of one embodiment of a method of testing a radio frequency circuit of the present application.
Fig. 3 is a schematic diagram of a radio frequency circuit on an FPCA in accordance with the present application.
Fig. 4 is a schematic diagram of a radio frequency circuit on another FPCA of the present application.
Fig. 5 is a schematic diagram of a radio frequency circuit on another FPCA of the present application.
Fig. 6 is a schematic diagram of an embodiment of a radio frequency circuit testing apparatus according to the present application.
FIG. 7 is a schematic diagram of an embodiment of a computer device in accordance with the application.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, as shown in fig. 1, a system architecture 100 may include a test apparatus 110 and a finished flexible circuit board under test FPCA120. The FPCA120 includes multiple types of rf circuits, such as a first rf circuit 1210 and a second rf circuit 1220, where the first rf circuit 1210 includes an external rf interface and the second rf circuit 1220 does not have an external rf interface, but may be internally connected to the first rf circuit 1210.
The test device 110 is connected to the FPCA120 to be tested through an external rf interface, for example, an external rf interface of the first rf circuit 1210, and then outputs an rf excitation signal to the FPCA120 to be tested, and receives a reflected signal of the FPCA120 to be tested, so as to obtain a signal waveform, and the circuit quality of the FPCA120 to be tested can be obtained through observing the signal waveform, so that the circuit quality of the first rf circuit 1210 and the second rf circuit 1220 can be obtained, thereby completing a final test.
It should be noted that, the method for testing the radio frequency circuit provided by the embodiment of the application is executed by the server, and correspondingly, the radio frequency circuit testing device is arranged in the server.
It should be understood that the number of test equipment, FPCAs under test, and radio frequency circuits in fig. 1 are merely illustrative. There may be any number of test devices, FPCAs under test, and radio frequency circuits, as desired for implementation.
Referring to fig. 2, fig. 2 shows a method for testing a radio frequency circuit according to an embodiment of the present application, and the method is applied to the system in fig. 1 for illustration, as follows.
S201, based on the FPCA to be tested, logically dividing a circuit contained in the FPCA to be tested to obtain a first radio frequency circuit and a second radio frequency circuit.
Specifically, the FPCA product generally includes a plurality of radio frequency circuits, where the types and numbers of components included in each radio frequency circuit are different, and in addition, the connection relationships of the different radio frequency circuits are also different, so that the radio frequency circuits need to be divided, and radio frequency circuits that have radio frequency interfaces and can be directly connected with external devices (such as a point-to-point switching radio frequency connector (B2B) and a vector network analyzer) are classified into a first radio frequency circuit, that is, radio frequency circuits that have no radio frequency interface and are relatively isolated and cannot be directly connected with the external devices are classified into another class, that is, second radio frequency circuits.
It should be noted that, because the first rf circuit has an rf interface, the quality test can be directly performed by using the test device, while the second rf circuit has no rf interface, and cannot be directly performed by using the test device, the current solution is to add a test port to complete the test, for example, a special probe is tied on the second rf circuit, and then an excitation signal is given to complete the quality test of the second rf circuit.
S202, electrically connecting the first radio frequency circuit with the second radio frequency circuit.
Specifically, in the FPCA to be tested, the first radio frequency circuit and the second radio frequency circuit are relatively independent, so that in order to finish quality testing on the second radio frequency circuit, a test port is not additionally added, and therefore the first radio frequency circuit and the second radio frequency circuit need to be electrically connected, the second radio frequency circuit can be connected with external test equipment indirectly through a radio frequency interface on the first radio frequency circuit, and finally quality testing can be finished by means of the test equipment.
In one possible implementation, the first rf circuit is connected to the second rf circuit by a metal block having good electrical characteristics.
Specifically, when the isolated radio frequency circuits in the FPCA to be tested are connected, in order to ensure the connection quality, and improve the accuracy and the test effect when the circuit quality measurement is performed later, a metal block with good electrical characteristics, such as a copper block, may be used to connect the first radio frequency circuit with the second radio frequency circuit.
It should be understood that the first rf circuit and the second rf circuit may be connected by other means or using metal blocks made of other materials, such as gold blocks, silver blocks, etc., and the present application is not limited to what connection means or what connection materials are selected.
S203, performing quality test on the first radio frequency circuit and the second radio frequency circuit through the external radio frequency interface to obtain a test result.
Specifically, the test equipment is connected with the first radio frequency circuit and the second radio frequency circuit through the external radio frequency interface, then the test equipment gives an excitation signal, receives a reflected signal returned by the radio frequency circuit through the radio frequency interface, can record and display the waveforms of the signals, and can further determine the quality of the first radio frequency circuit and the second radio frequency circuit through observing the waveforms of the signals.
In one possible implementation manner, when the quality test is performed on the first radio frequency circuit and the second radio frequency circuit through the external radio frequency interface, the isolated steel sheet element in the first radio frequency circuit and the second radio frequency circuit is searched, the circuit influence of the steel sheet element on the first radio frequency circuit and the second radio frequency circuit is smaller than an influence threshold value, the circuit characteristic of the steel sheet element is changed, so that the circuit influence of the steel sheet element on the first radio frequency circuit and the second radio frequency circuit is larger than the influence threshold value, a test waveform obtained after the circuit characteristic of the steel sheet element is changed is recorded, the test waveform obtained before the circuit characteristic of the steel sheet element is not changed is compared with the test waveform obtained before the circuit characteristic of the steel sheet element is not changed, a comparison result is obtained, and whether the steel sheet element falls off from the first radio frequency circuit or the second radio frequency circuit is determined based on the comparison result.
Specifically, each radio frequency circuit in the FPCA to be tested is sequentially searched to determine relatively isolated steel sheet elements in each radio frequency circuit, the steel sheet elements have smaller influence on the whole radio frequency circuit due to smaller steel sheet elements, the influence on the waveforms of the radio frequency circuit due to smaller influence thresholds, namely whether the steel sheet is connected or not is smaller, then the circuit characteristics of the steel sheet elements are changed, the influence on the circuits of the whole radio frequency circuit is increased to be larger than the influence thresholds, then test waveforms corresponding to the whole radio frequency circuit obtained before and after the steel sheet elements are changed are compared, if the two test waveforms are basically consistent, no obvious difference exists, the fact that the change of the circuit waveforms cannot be influenced after the circuit characteristics of the steel sheet elements are changed can be determined, the steel sheet elements can be determined to be detached from the radio frequency circuit, if the two test waveforms have obvious differences, and no similar place exists, the fact that the circuit waveforms can be obviously influenced after the circuit characteristics of the steel sheet elements are changed can be determined, and the steel sheet elements can be determined not to be detached from the radio frequency circuit.
In another possible implementation manner, a metal copper block is added below the steel sheet element, and the physical specification of the metal copper block is N times that of the steel sheet element, wherein the physical specification comprises volume, and N is a positive integer greater than 1.
Specifically, in order to change the circuit characteristics of the steel sheet element, the influence of connectivity of the steel sheet element on the circuit waveform is enlarged, a metal copper block may be added below the original steel sheet element, and the copper block is larger than the physical specification of the original steel sheet element, so that the influence is enlarged, for example, a copper block five times larger than the original steel sheet element may be selected and placed below the steel sheet element. It should be noted that the influence of the original steel sheet element on the circuit waveform may be increased by other methods or selecting metal blocks of other materials and specifications, which is not limited in the present application.
It can be understood that by enlarging the influence of the connectivity of the steel sheet element on the circuit waveform, whether the steel sheet element falls off or not can be better judged, so that the accuracy of the radio frequency circuit test can be further improved.
In order to better illustrate the radio frequency circuit testing method provided by the application, a specific testing process is better understood, and a specific FPCA product will be taken as an example for detailed description.
Referring to fig. 3, fig. 3 is a schematic diagram of a radio frequency circuit on an FPCA according to the present application. As shown in fig. 3, the FPCA includes three radio frequency circuits, namely, a circuit a, a circuit B and a circuit C, where the three circuits are independent of each other and each include different components, the circuit a includes elements such as a capacitor, an inductor, a bare steel sheet, and a radio frequency switch, the circuit B includes elements such as a capacitor, an inductor, a bare steel sheet, and the circuit C includes elements such as a capacitor, an inductor, a bare steel sheet, and a radio frequency switch. In particular, the circuit A and the circuit B have an external radio frequency interface, and the circuit C does not have an external radio frequency interface. In order to test the quality of the FPCA, the external radio frequency interfaces of the A circuit and the B circuit can be connected to a point-to-point switching radio frequency connector (B2B connector), then the point-to-point switching radio frequency connector is switched to a Vector Network Analyzer (VNA) through the buckling terminal of the B2B connector, the VNA gives an excitation signal, then the circuit quality of the A circuit and the B circuit can be obtained through testing by observing the waveform of the signal, in order to judge the connectivity of the steel sheet elements, the accuracy of the testing is further improved, a copper block which is five times larger than that of the original steel sheet element is respectively added below the steel sheet elements of the A circuit and the B circuit, and then the testing is carried out again, so that whether the steel sheet elements fall off from the circuit is determined, as shown in fig. 4.
Further, in order to perform quality test on the C circuit, a copper block is added to connect the steel sheet element in the B circuit and the steel sheet element in the C circuit together, as shown in fig. 5, it can be seen that after the two steel sheet elements are connected together through the newly added copper block, the B circuit and the C circuit are also connected together in a phase-changing manner, and at this time, the C circuit is no longer an isolated circuit but can be connected with the outside through the B circuit in a communication manner. At this time, the external radio frequency interface of the B circuit is connected to the B2B connector and then to the VNA, the VNA gives an excitation signal, and the quality of the C circuit can be judged by switching the radio frequency switch in the C circuit and observing the waveform of the signal, so that the quality test of the C circuit is completed.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.
Fig. 6 shows a schematic block diagram of a radio frequency circuit testing apparatus in one-to-one correspondence with the radio frequency circuit testing method of the above embodiment. As shown in fig. 6, the radio frequency circuit testing device 600 includes a dividing module 610, a connecting module 620, and a testing module 630. The functional modules are described in detail below.
The dividing module 610 is configured to logically divide a circuit included in the FPCA to be tested to obtain a first radio frequency circuit and a second radio frequency circuit, where the first radio frequency circuit includes an external radio frequency interface, the external radio frequency interface is used for connecting test equipment, the test equipment is used for performing a circuit quality test on the FPCA, and the second radio frequency circuit does not include the external radio frequency interface.
And a connection module 620, configured to electrically connect the first rf circuit and the second rf circuit.
And the testing module 630 is configured to perform quality testing on the first rf circuit and the second rf circuit through the external rf interface, so as to obtain a testing result.
For specific limitations of the rf circuit testing apparatus, reference may be made to the above limitations of the rf circuit testing method, and no further description is given here. The modules in the radio frequency circuit testing device can be all or partially realized by software, hardware and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In order to solve the technical problems, the embodiment of the application also provides computer equipment. Referring specifically to fig. 7, fig. 7 is a basic structural block diagram of a computer device according to the present embodiment.
The computer device 700 includes a memory 710, a processor 720, and a network interface 730 communicatively coupled to each other via a system bus. It should be noted that only a computer device 700 having components connected to a memory 710, a processor 720, a network interface 730 is shown, but it should be understood that not all of the illustrated components need be implemented and that more or fewer components may be implemented instead. It will be appreciated by those skilled in the art that the computer device herein is a device capable of automatically performing numerical calculations and/or information processing in accordance with predetermined or stored instructions, the hardware of which includes, but is not limited to, microprocessors, application specific integrated circuits (Application Specific Integrated Circuit, ASICs), programmable gate arrays (fields-Programmable Gate Array, FPGAs), digital processors (Digital Signal Processor, DSPs), embedded devices, etc.
The computer equipment can be a desktop computer, a notebook computer, a palm computer, a cloud server and other computing equipment. The computer equipment can perform man-machine interaction with a user through a keyboard, a mouse, a remote controller, a touch pad or voice control equipment and the like.
The memory 710 includes at least one type of readable storage medium including flash memory, hard disk, multimedia card, card memory (e.g., SD or D interface display memory, etc.), random Access Memory (RAM), static Random Access Memory (SRAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), programmable Read Only Memory (PROM), magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory 710 may be an internal storage unit of the computer device 700, such as a hard disk or a memory of the computer device 700. In other embodiments, the memory 710 may also be an external storage device of the computer device 700, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like, which are provided on the computer device 700. Of course, the memory 710 may also include both internal storage units and external storage devices of the computer device 700. In this embodiment, the memory 710 is typically used to store an operating system and various application software installed on the computer device 700, such as program codes for controlling electronic files. In addition, the memory 710 may be used to temporarily store various types of data that have been output or are to be output.
The processor 720 may be a central processing unit (Central Processing Unit, CPU), controller, microcontroller, microprocessor, or other data processing chip in some embodiments. The processor 720 is typically used to control the overall operation of the computer device 700. In this embodiment, the processor 720 is configured to execute the program code stored in the memory 710 or process data, such as the program code for executing the control of an electronic file.
The network interface 730 may include a wireless network interface or a wired network interface, which network interface 730 is typically used to establish a communication connection between the computer device 700 and other electronic devices.
The present application also provides another embodiment, namely, a computer-readable storage medium storing an interface display program executable by at least one processor to cause the at least one processor to perform the steps of the image library construction method as described above.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
It is apparent that the above-described embodiments are only some embodiments of the present application, but not all embodiments, and the preferred embodiments of the present application are shown in the drawings, which do not limit the scope of the patent claims. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the scope of the application.
Claims (10)
1. A method of testing a radio frequency circuit, the method comprising:
based on a to-be-tested finished flexible circuit board FPCA, logically dividing a circuit contained in the to-be-tested FPCA to obtain a first radio frequency circuit and a second radio frequency circuit, wherein the first radio frequency circuit comprises an external radio frequency interface, the external radio frequency interface is used for connecting test equipment, the test equipment is used for performing circuit quality test on the FPCA, and the second radio frequency circuit does not comprise the external radio frequency interface;
electrically connecting the first radio frequency circuit with the second radio frequency circuit;
and performing quality test on the first radio frequency circuit and the second radio frequency circuit through the external radio frequency interface to obtain a test result.
2. The method of claim 1, wherein when the first radio frequency circuit and the second radio frequency circuit are quality tested over the external radio frequency interface, the method further comprises:
searching isolated steel sheet elements in the first radio frequency circuit and the second radio frequency circuit, wherein the influence of the steel sheet elements on the circuits of the first radio frequency circuit and the second radio frequency circuit is smaller than an influence threshold;
changing the circuit characteristics of the steel sheet element so that the circuit influence of the steel sheet element on the first radio frequency circuit and the second radio frequency circuit is greater than the influence threshold;
recording a test waveform obtained after the circuit characteristics of the steel sheet element are changed, and comparing the test waveform with the test waveform obtained before the circuit characteristics of the steel sheet element are not changed to obtain a comparison result;
and determining whether the steel sheet element is detached from the first radio frequency circuit or the second radio frequency circuit based on the comparison result.
3. The method of claim 1 or 2, wherein the electrically connecting the first radio frequency circuit with the second radio frequency circuit comprises:
and connecting the first radio frequency circuit with the second radio frequency circuit by utilizing a metal block with good electrical characteristics, wherein the metal block comprises a copper block.
4. The method of claim 2, wherein said changing the circuit characteristics of the steel sheet element such that the circuit effect of the steel sheet element on the first and second radio frequency circuits is greater than the effect threshold comprises:
and adding a metal copper block below the steel sheet element, wherein the physical specification of the metal copper block is N times of that of the steel sheet element, the physical specification comprises a volume, and N is a positive integer greater than 1.
5. The method according to claim 1 or 2, wherein the performing, by the external radio frequency interface, the quality test on the first radio frequency circuit and the second radio frequency circuit to obtain a test result includes:
receiving an excitation signal input by test equipment through the external radio frequency interface, and recording the obtained signal waveform;
and determining the quality of the first radio frequency circuit and the second radio frequency circuit according to the signal waveform.
6. A radio frequency circuit testing device, the device comprising:
the division module is used for logically dividing a circuit contained in the FPCA to be tested to obtain a first radio frequency circuit and a second radio frequency circuit, wherein the first radio frequency circuit comprises an external radio frequency interface, the external radio frequency interface is used for connecting test equipment, the test equipment is used for testing the circuit quality of the FPCA, and the second radio frequency circuit does not comprise the external radio frequency interface;
the connecting module is used for electrically connecting the first radio frequency circuit with the second radio frequency circuit;
and the testing module is used for testing the quality of the first radio frequency circuit and the second radio frequency circuit through the external radio frequency interface to obtain a testing result.
7. The apparatus of claim 6, further comprising a lookup module, a modification module, and a record comparison module, wherein,
the searching module is used for searching isolated steel sheet elements in the first radio frequency circuit and the second radio frequency circuit, and the circuit influence of the steel sheet elements on the first radio frequency circuit and the second radio frequency circuit is smaller than an influence threshold;
the changing module is used for changing the circuit characteristics of the steel sheet element so that the circuit influence of the steel sheet element on the first radio frequency circuit and the second radio frequency circuit is larger than the influence threshold;
the recording and comparing module is used for recording a test waveform obtained after the circuit characteristics of the steel sheet element are changed, comparing the test waveform with the test waveform obtained before the circuit characteristics of the steel sheet element are not changed, obtaining a comparison result, and determining whether the steel sheet element falls off from the first radio frequency circuit or the second radio frequency circuit based on the comparison result.
8. The apparatus according to claim 6 or 7, wherein the connection module is specifically configured to:
and connecting the first radio frequency circuit with the second radio frequency circuit by utilizing a metal block with good electrical characteristics, wherein the metal block comprises a copper block.
9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 5 when executing the computer program.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the method according to any one of claims 1 to 5.
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