Performance test system based on built-in antenna

Abstract

The embodiment of the present invention provides a performance test system based on a built-in antenna, which relates to the field of antenna testing technology, and includes at least one base station communication device, a test device, an external control device and a switch, wherein the base station communication device, the test device and the external control device are respectively connected to the switch for communication, and the base station communication device includes at least two built-in antennas, and the external control device is used to issue a first test instruction and a second test instruction, wherein the first test instruction is used to indicate the on and off of each built-in antenna in the base station communication device, and the second test instruction is used to instruct the test device to start the test; the test device is coupled with at least two built-in antennas, and the test device is used to obtain the test signal of each built-in antenna and compare it with a preset standard signal to complete the performance test of each built-in antenna. The present invention can stably and accurately complete the performance test of the built-in antenna of the base station communication device.

Description

Technical Field

[0001] The present invention relates to the technical field of antenna testing, and in particular to a performance testing system based on a built-in antenna. Background Art

[0002] The development of science and technology is inseparable from the construction of communication networks, and the construction of communication networks is inseparable from the deployment of base station communication equipment. There are two ways to set up the antennas of existing base station communication equipment, one is an external antenna, and the other is an internal antenna. In particular, small base station communication equipment such as 4G and 5G mostly use internal antennas, which can save space while ensuring communication functions and reduce the size of base station communication equipment.

[0003] As a part of the base station communication equipment, the built-in antenna needs to be tested for its performance after installation during the production process of the base station communication equipment to avoid installation failure or antenna damage that may cause the base station communication equipment to malfunction. Existing testing methods for built-in antennas often directly measure the antenna power signal through external instruments, which cannot avoid signal interference between different antennas in the base station communication equipment, and the test results are inaccurate. Therefore, there is an urgent need for a performance testing solution based on built-in antennas to improve the accuracy of built-in antenna measurements. Summary of the invention

[0004] In view of this, one of the objectives of the present application is to provide a performance testing system based on a built-in antenna, which can at least solve some of the above problems.

[0005] The embodiment of the present application provides a performance test system based on a built-in antenna, the performance test system based on a built-in antenna includes at least one base station communication device, a test device, an external control device and a switch, the base station communication device, the test device and the external control device are respectively connected to the switch for communication, the base station communication device includes at least two built-in antennas, wherein:

[0006] The external control device is used to issue a first test instruction and a second test instruction, wherein the first test instruction is used to instruct the on and off of each built-in antenna in the base station communication device, and the second test instruction is used to instruct the test device to start the test;

[0007] The test device is coupled to at least two built-in antennas, and is used to obtain a test signal from each built-in antenna and compare it with a preset standard signal to complete a performance test of each built-in antenna.

[0008] In a possible implementation, the test device includes a test antenna, which is coupled to at least two built-in antennas, and the test antenna is used to obtain a test signal of each built-in antenna.

[0009] In a possible implementation, the base station communication device includes a control chip, a baseband chip, at least two switch control circuit units and at least two power amplifiers, wherein:

[0010] Each built-in antenna is electrically connected to a power amplifier, and each power amplifier is electrically connected to a switch control circuit unit;

[0011] The control chip is electrically connected to the baseband chip, and the control chip is electrically connected to the corresponding power amplifier through each switch control circuit unit.

[0012] In a possible implementation manner, the test device includes a power meter, the test signal includes radiation power, and the preset standard signal includes preset standard power, wherein:

[0013] The power meter is coupled to each built-in antenna respectively through the test antenna, and is used to obtain the radiation power of each built-in antenna, and compare the obtained radiation power with a preset standard power. If the obtained radiation power is greater than or equal to the preset standard power, the power meter outputs that the working state of the built-in antenna corresponding to the obtained radiation power is normal.

[0014] In a possible implementation, the switch control circuit unit includes a first input terminal, a second input terminal, an output terminal, a first switch sub-unit, and a second switch sub-unit, wherein:

[0015] The first input end is electrically connected to the control chip, the second input end is electrically connected to the control chip, and the output end is electrically connected to the corresponding built-in antenna through the power amplifier;

[0016] The first end of the first switch subunit is electrically connected to the third end of the second switch subunit, the second end of the first switch subunit is electrically connected to the first input end, and the third end of the first switch subunit is electrically connected to the output end;

[0017] A first end of the second switch subunit is grounded, and a second end of the second switch subunit is electrically connected to the second input end.

[0018] In a possible implementation manner, the first switch sub-unit is a PNP-type transistor, and the second switch sub-unit is an NPN-type transistor.

[0019] In a possible implementation manner, the switch control circuit unit further includes a first protection subunit, the first protection subunit includes a first capacitor, a second capacitor and a first resistor, wherein:

[0020] One end of the first capacitor, one end of the second capacitor and one end of the first resistor are electrically connected to the output end respectively;

[0021] The other end of the first capacitor, the other end of the second capacitor and the other end of the first resistor are grounded respectively.

[0022] In a possible implementation, the switch control circuit unit further includes a second protection subunit, and the second protection subunit includes a second resistor, wherein one end of the second resistor is electrically connected to the second input end, and the other end of the second resistor is grounded.

[0023] In a possible implementation, the switch control circuit unit further includes a third protection subunit, and the third protection subunit includes a third resistor, wherein one end of the third resistor is electrically connected to the second input end, and the other end of the third resistor is grounded.

[0024] In a possible implementation, the switch control circuit unit further includes a first buck unit and a second buck unit, wherein:

[0025] The first step-down unit includes a fourth resistor and a fifth resistor, one end of the fourth resistor is electrically connected to the first input end, the other end of the fourth resistor is electrically connected to one end of the fifth resistor, and the other end of the fifth resistor is electrically connected to the third end of the second switch subunit;

[0026] The second step-down unit includes a sixth resistor, one end of the sixth resistor is electrically connected to the second input end, and the other end of the sixth resistor is electrically connected to the second end of the second switch subunit.

[0027] The embodiment of the present application provides a performance test system based on a built-in antenna. By respectively connecting the base station communication device, the test device and the external control device to the switch, and then sending corresponding test instructions to the base station communication device and the test device through the external control device, the performance test of each built-in antenna can be completed. In addition, during each test, only one built-in antenna is turned on, which can avoid signal interference from other built-in antennas during the test and ensure the accuracy of the performance test of the built-in antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram of the functional modules of a performance test system based on a built-in antenna provided in an embodiment of the present application;

[0030] Figure 2 A performance test system based on a built-in antenna provided in an embodiment of the present application includes a schematic diagram of functional modules of a control chip;

[0031] Figure 3 The circuit topology of the switch control circuit unit included in the performance testing system based on the built-in antenna provided in the embodiment of the present application.

[0032] icon:

[0033] Base station communication equipment 110, test equipment 120, external control equipment 130, switch 140, internal antenna 150;

[0034] Control chip 111, baseband chip 112, test antenna 121, switch control circuit unit 113, power amplifier 114, first input terminal 1131, second input terminal 1132, output terminal 1133, first switch subunit 1134, second switch subunit 1135, first protection subunit 1136, second protection subunit 1137, third protection subunit 1138, first buck unit 1139, second buck unit 1140;

[0035] A first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, an NPN transistor Q1, and a PNP transistor Q2. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0041] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0042] See also Figure 1 , Figure 1 For a schematic diagram of the functional modules of the performance test system based on the built-in antenna provided in the embodiment of the present application, see Figure 1 , Figure 1 A schematic diagram of the functional modules of a performance test system based on a built-in antenna provided in an embodiment of the present application, wherein: Figure 1 Only one base station communication device 110 is illustrated, and in order to better illustrate the connection relationship between the built-in antenna 150 and the test device 120, the one base station communication device 110 shown only shows two built-in antennas 150. The built-in antennas 150 in the same base station communication device 110 are the same. It should be known that there is more than one base station communication device 110 applicable to this embodiment, and there are more than two built-in antennas 150 in the base station communication device 110.

[0043] Specifically, the performance test system based on the built-in antenna includes at least one base station communication device 110, a test device 120, an external control device 130 and a switch 140. The base station communication device 110, the test device 120 and the external control device 130 are respectively connected to the switch 140 for communication. The base station communication device 110 includes at least two built-in antennas 150, wherein:

[0044] The external control device 130 is used to issue a first test instruction and a second test instruction, wherein the first test instruction is used to instruct the on and off of each built-in antenna 150 in the base station communication device 110, and the second test instruction is used to instruct the test device 120 to start the test;

[0045] The test device 120 is coupled to at least two built-in antennas 150 , and is used to obtain a test signal of each built-in antenna and compare it with a preset standard signal to complete a performance test of each built-in antenna 150 .

[0046] This embodiment is applicable to the antenna performance test of the base station communication device 110, and is particularly applicable to the performance test of the built-in antenna 150 of the base station communication device 110, such as a small 4G base station and a 5G base station. It should be noted that the base station communication device 110 with an external antenna generally does not need to perform an antenna performance test when the base station communication device 110 is produced, because the external antenna is usually installed when the base station communication device 110 has been produced and is ready for field deployment, and generally does not need to test its performance. The base station communication device 110 that needs to be installed with an internal antenna 150 usually needs to install the internal antenna 150 during the production process. When the production and assembly of the base station communication device 110 is completed, in order to ensure that the base station communication device 110 can work normally and that there are no other problems in the installation process and itself of the internal antenna 150, the performance of the internal antenna 150 needs to be tested. The base station communication device 110 that passes the test can be directly deployed in a real environment and can ensure normal communication.

[0047] Therefore, the base station communication device 110 in this embodiment may also be referred to as a base station device, which may include a base station device that needs to be installed with a built-in antenna 150, and can be used to receive and send radio signals. The base station communication device 110 may also include a housing, a circuit board, and at least two built-in antennas 150. The circuit board in the base station communication device 110 may be used to design the circuit corresponding to the power supply and switching of the built-in antenna 150 to ensure the normal operation of the built-in antenna 150, wherein the built-in antenna 150 may be welded on the circuit board, or may be fixed on the circuit board through an RF connector.

[0048] The test device 120 in this embodiment can be used to measure the signal emitted by the antenna, which may specifically include a power signal. Optionally, the test device 120 includes a power meter, the test signal includes radiation power, the preset standard signal includes preset standard power, the power meter is coupled to each built-in antenna 150 through the test antenna 121, and the power meter is used to obtain the radiation power of each built-in antenna 150, and compare the obtained radiation power with the preset standard power, wherein, if the obtained radiation power is greater than or equal to the preset standard power, the power meter outputs the working state of the built-in antenna 150 corresponding to the obtained radiation power as normal. The power meter may pre-store standard signals of the built-in antenna 150 of some models of base station communication equipment 110 under normal working conditions, such as the preset standard power in this embodiment. It should be noted that the built-in antenna 150 has a normal working power signal when it is installed correctly and has no self-cause such as damage. When the power meter detects the power signal emitted by the built-in antenna 150, it will be compared with the pre-stored preset standard power to complete the detection of the performance of the built-in antenna 150.

[0049] Optionally, the testing device 120 includes: Figure 2 A test antenna 121 is provided, wherein the test antenna 121 is coupled to at least two built-in antennas 150 , and the test antenna 121 is used to obtain a test signal of each built-in antenna 150 .

[0050] In addition, the power meter may also store a preset standard power range. In this case, the power meter may compare the detected power signal with the preset standard power range. If the monitored power signal is within the preset standard power range, it can be determined that the performance of the corresponding detected built-in antenna 150 is normal. Otherwise, it can be determined that the corresponding built-in antenna 150 may have installation problems such as loose installation or performance failure of the built-in antenna 150 itself. Optionally, the model of the power meter applicable to this embodiment includes at least one of AN87330, CW500 and TH3422.

[0051] In addition, the test device 120, such as a power meter, can select a multi-channel power meter, such as a 16-channel power meter, and can simultaneously test the performance of the internal antennas 150 of 16 base station communication devices 110. When faced with huge measurement requirements, the measurement system based on the internal antenna 150 can select at least two test devices 120 to speed up the measurement of the internal antennas 150 of multiple base station communication devices 110.

[0052] The external control device 130 in this embodiment may be a computer that can generate corresponding control instructions and has basic wired and / or wireless communication functions.

[0053] Specifically, when it is necessary to measure the performance of the built-in antenna 150, the external control device 130 can generate a first test instruction and send the first test instruction to the base station communication device 110, wherein the first test instruction can be a pulse control instruction, and the base station communication device 110 can control the on and off of each built-in antenna 150 according to the received pulse control instruction. It should be noted that the built-in antenna 150 can work normally when receiving a high level, and the built-in antenna 150 can be understood as being powered off and not working when receiving a low level. In addition, the first test instruction can be specifically set for the number of built-in antennas 150, but after sending the first test instruction each time, the base station communication device 110 only ensures that one of the built-in antennas 150 can receive a high level, and the other built-in antennas 150 all receive a low level, so as to ensure that when measuring one built-in antenna 150, interference from other built-in antennas 150 is avoided. The second test instruction can be a start instruction, which can be used to instruct the test device 120, such as the power meter mentioned above, to start or start the test. The first test instruction and the second test instruction are generated by the external control device 130. Considering that they cannot be directly recognized by the base station communication device 110 and the test device 120, the instructions can be converted through the switch 140 to comply with the communication protocols of the base station communication device 110 and the test device 120 respectively.

[0054] Among them, the external control device 130 can also store the preset standard power. After the testing device 120, such as a power meter, obtains the radiation power of each built-in antenna 150, the radiation power is sent to the external control device 130 through the switch 140. The external control device 130 compares the radiation power with the preset standard power to complete the performance test of the built-in antenna 150 corresponding to the radiation power. The external control device 130 can store the test results, which include detailed values ​​of the radiation power and the preset standard power compared with the radiation power, and the model of the built-in antenna 150 corresponding to the radiation power.

[0055] The functions of the various components of the performance test system based on the internal antenna in this embodiment are described in detail above. The following will be described in detail by taking the test of a base station communication device 110 including an A internal antenna 150 and a B internal antenna 150 as an example:

[0056] S1, the external control device 130 sends a first test instruction to the base station communication device 110, and the base station communication device 110 generates only a high level and a low level according to the first test instruction, and sends the high level to the A built-in antenna 150 or the B built-in antenna 150.

[0057] Taking sending a high level to the A built-in antenna 150 and sending a low level to the B built-in antenna 150 as an example, only the A built-in antenna 150 in the base station communication device 110 can work normally, and the B built-in antenna 150 does not work. The signal sent by the B built-in antenna 150 cannot affect the A built-in antenna 150.

[0058] S2, the external control device 130 sends a second test instruction to the test device 120, the test device 120 starts testing according to the second test instruction and obtains a test signal of the A built-in antenna 150, and then the test device 120 sends the test signal to the external control device 130 through the switch 140.

[0059] S3, the external control device 130 compares the stored preset standard signal with the received test signal. If the test signal is greater than the preset standard signal in value, the external control device 130 can determine that there is no abnormality in the A built-in antenna 150 and it can work normally.

[0060] S4, after testing the performance of the A internal antenna 150, the external control device 130 may continue to send a first test instruction to the base station communication device 110 and a second test instruction to the test device 120, thereby completing the performance test of the B internal antenna 150.

[0061] In this example, there is no limitation on the order of each step. For example, steps S1 and S2 can be performed at the same time, and steps S3 and S4 can also be performed at the same time.

[0062] From the above analysis, it can be seen that the performance test system based on the built-in antenna provided by the embodiment of the present application can complete the performance test of each built-in antenna by connecting the base station communication device, the test device and the external control device to the switch respectively, and then sending the corresponding test instructions to the base station communication device and the test device through the external control device. In addition, during each test, only one built-in antenna is turned on, which can avoid signal interference from other built-in antennas during the test process and ensure the accuracy of the performance test of the built-in antenna.

[0063] See also Figure 2 , Figure 2 The performance test system based on the internal antenna provided in the embodiment of the present application includes a functional module diagram of a control chip. In a possible implementation, the base station communication device 110 includes a control chip 111, a baseband chip 112, at least two switch control circuit units 113 and at least two power amplifiers 114, wherein:

[0064] Each built-in antenna 150 is electrically connected to a power amplifier 114, and each power amplifier 114 is electrically connected to a switch control circuit unit 113;

[0065] The control chip 111 is electrically connected to the baseband chip 112 , and the control chip 111 is electrically connected to the corresponding power amplifier 114 through each switch control circuit unit 113 .

[0066] In this embodiment, the control chip 111 can be used to receive the first control instruction sent by the external control device 130 through the switch 140, and generate a high level or a low level according to the first empty instruction and send it to the switch control circuit unit 113. The baseband controller always sends a high level signal to the power amplifier 114, and the normal operation of the power amplifier 114 can ensure the normal operation of the corresponding connected internal antenna 150.

[0067] Taking the A built-in antenna 150 in the above example as an example, the A built-in antenna 150 is connected to the corresponding power amplifier 114, and the switch control circuit unit 113 and the baseband controller are connected to the power amplifier 114. The baseband controller always provides a high-level signal. When the switch control circuit unit 113 receives a high level, the switch control circuit unit 113 outputs a high level to the power amplifier 114, the power amplifier 114 works normally, and the A built-in antenna 150 works normally. When the switch control circuit unit 113 receives a low level, the switch control circuit unit 113 outputs a low level to the power amplifier 114, the power amplifier 114 does not work, and the A built-in antenna 150 does not work.

[0068] See also Figure 3 , Figure 3 The circuit topology of the switch control circuit unit included in the performance test system based on the internal antenna provided in the embodiment of the present application. Optionally, the switch control circuit unit 113 includes a first input terminal 1131, a second input terminal 1132, an output terminal 1133, a first switch subunit 1134, and a second switch subunit 1135, wherein:

[0069] The first input terminal 1131 is electrically connected to the control chip 111, the second input terminal 1132 is electrically connected to the control chip 111, and the output terminal 1133 is electrically connected to the corresponding built-in antenna 150 through the power amplifier 114;

[0070] The first end of the first switch subunit 1134 is electrically connected to the third end of the second switch subunit 1135, the second end of the first switch subunit 1134 is electrically connected to the first input end 1131, and the third end of the first switch subunit 1134 is electrically connected to the output end 1133;

[0071] A first end of the second switch subunit 1135 is grounded, and a second end of the second switch subunit 1135 is electrically connected to the second input end 1132 .

[0072] In this embodiment, the first input terminal 1131 maintains a high input level, and the control chip 111 is mainly used to input a high level or a low level to the second input terminal 1132. When a high level is input to the second input terminal 1132, the first switch subunit 1134 and the second switch subunit 1135 are both turned on, and the target antenna works with a high level provided by the first input terminal 1131. When a low level is input to the second input terminal 1132, the first switch subunit 1134 and the second switch subunit 1135 are both kept off, and the target antenna does not work with a low level provided by the first input terminal 1131.

[0073] Optionally, the first switch subunit 1134 is a PNP transistor Q2, and the second switch subunit 1135 is an NPN transistor Q1Q1Q1. The two switch subunits in this embodiment can also use different types of MOS transistors to achieve corresponding switch functions, which is not limited in this embodiment.

[0074] Optionally, the switch control circuit unit 113 further includes a first protection subunit 1136, and the first protection subunit 1136 includes a first capacitor C1, a second capacitor C2 and a first resistor R1, wherein:

[0075] One end of the first capacitor C1, one end of the second capacitor C2 and one end of the first resistor R1 are electrically connected to the output end 1133 respectively;

[0076] The other end of the first capacitor C1 , the other end of the second capacitor C2 , and the other end of the first resistor R1 are grounded respectively.

[0077] In this embodiment, the grounding of the first capacitor C1 and the second capacitor C2 can effectively eliminate the high-frequency components in the high level provided to the target antenna when the first switch subunit 1134 and the second switch subunit 1135 are both turned on, and provide a stable high level for the target antenna. The grounding of the first resistor R1 can effectively eliminate the sudden high voltage in the switch control circuit unit 113, avoiding the safety hazards caused by the high voltage.

[0078] Optionally, the switch control circuit unit 113 further includes a second protection subunit 1137, and the second protection subunit 1137 includes a second resistor R2, wherein one end of the second resistor R2 is electrically connected to the second input end 1132, and the other end of the second resistor R2 is grounded.

[0079] Specifically, the second resistor R2 in this embodiment can also effectively eliminate the high voltage that is easily generated at the second input terminal 1132 in the switch control circuit unit 113, thereby ensuring the safety and stability of the switch control circuit unit 113120. Moreover, when the high level generated by the pulse generator is not received at the second input terminal 1132, the second resistor R2 can form a pull-down resistor to ensure that the second input terminal 1132 is in a low level state, thereby avoiding the false start-up phenomenon of the second switch sub-unit 1135.

[0080] Optionally, the switch control circuit unit 113 further includes a third protection subunit 1138, and the third protection subunit 1138 includes a third resistor R3, wherein one end of the third resistor R3 is electrically connected to the second input end 1132, and the other end of the third resistor R3 is grounded.

[0081] Specifically, the third resistor R3 in this embodiment can effectively eliminate the high voltage that is easily generated at the second switch subunit 1135 in the switch control circuit unit 113 , thereby ensuring the safety and stability of the switch control circuit unit 113 .

[0082] Optionally, the switch control circuit unit 113 further includes a first buck unit 1139 and a second buck unit 1140, wherein:

[0083] The first step-down unit 1139 includes a fourth resistor R4 and a fifth resistor R5, one end of the fourth resistor R4 is electrically connected to the first input terminal 1131, the other end of the fourth resistor R4 is electrically connected to one end of the fifth resistor R5, and the other end of the fifth resistor R5 is electrically connected to the third end of the second switch subunit 1135;

[0084] The second voltage-dropping unit 1140 includes a sixth resistor R6 , one end of the sixth resistor R6 is electrically connected to the second input end 1132 , and the other end of the sixth resistor R6 is electrically connected to the second end of the second switch subunit 1135 .

[0085] Specifically, the first buck unit 1139 and the second buck unit 1140 can effectively avoid damage to the switch control circuit unit 113 caused by the sudden voltage, and can ensure the stability of the working environment of the first switch subunit 1134 and the second switch subunit 1135.

[0086] In summary, the embodiment of the present application provides a performance test system based on a built-in antenna, which can complete the performance test of each built-in antenna by connecting the base station communication device, the test device and the external control device to the switch respectively, and then sending the corresponding test instructions to the base station communication device and the test device through the external control device. In addition, during each test, only one built-in antenna is turned on, which can avoid signal interference from other built-in antennas during the test process, thereby ensuring the accuracy of the performance test of the built-in antenna.

[0087] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A performance test system based on a built-in antenna, characterized in that: The performance test system based on the built-in antenna includes at least one base station communication device, a test device, an external control device and a switch. The base station communication device, the test device and the external control device are respectively connected to the switch for communication. The base station communication device includes at least two built-in antennas, wherein: The external control device is used to issue a first test instruction and a second test instruction, wherein the first test instruction is used to instruct the on and off of each built-in antenna in the base station communication device, and the second test instruction is used to instruct the test device to start the test; the test device is coupled to at least two built-in antennas, and the test device is used to obtain a test signal of each built-in antenna and compare it with a preset standard signal to complete a performance test of each built-in antenna; The external control device sends the first test instruction to the base station communication device, and the base station communication device controls only one of the built-in antennas to be powered on and work according to the first test instruction. The external control device sends the second test instruction to the test device, and the test device tests the powered on built-in antenna according to the second test instruction. The base station communication device includes a control chip, a baseband chip, at least two switch control circuit units and at least two power amplifiers, wherein: Each built-in antenna is electrically connected to a power amplifier, and each power amplifier is electrically connected to a switch control circuit unit; The control chip is electrically connected to the baseband chip, and the control chip is electrically connected to the corresponding power amplifier through each switch control circuit unit; The switch control circuit unit includes a first input terminal, a second input terminal, an output terminal, a first switch sub-unit, and a second switch sub-unit, wherein: The first input end is electrically connected to the control chip, the second input end is electrically connected to the control chip, and the output end is electrically connected to the corresponding built-in antenna through the power amplifier; The first end of the first switch subunit is electrically connected to the third end of the second switch subunit, the second end of the first switch subunit is electrically connected to the first input end, and the third end of the first switch subunit is electrically connected to the output end; A first end of the second switch subunit is grounded, and a second end of the second switch subunit is electrically connected to the second input end; The switch control circuit unit further includes a first protection subunit, the first protection subunit includes a first capacitor, a second capacitor and a first resistor, wherein: One end of the first capacitor, one end of the second capacitor and one end of the first resistor are electrically connected to the output end respectively; The other end of the first capacitor, the other end of the second capacitor and the other end of the first resistor are grounded respectively; The switch control circuit unit further includes a second protection subunit, wherein the second protection subunit includes a second resistor, wherein one end of the second resistor is electrically connected to the second input end, and the other end of the second resistor is grounded; The switch control circuit unit further includes a third protection subunit, the third protection subunit includes a third resistor, wherein one end of the third resistor is electrically connected to the second input end, and the other end of the third resistor is grounded; The switch control circuit unit further includes a first step-down unit and a second step-down unit, wherein: The first step-down unit includes a fourth resistor and a fifth resistor, one end of the fourth resistor is electrically connected to the first input end, the other end of the fourth resistor is electrically connected to one end of the fifth resistor, and the other end of the fifth resistor is electrically connected to the third end of the second switch subunit; The second step-down unit includes a sixth resistor, one end of the sixth resistor is electrically connected to the second input end, and the other end of the sixth resistor is electrically connected to the second end of the second switch subunit.

2. The performance test system based on the built-in antenna according to claim 1, characterized in that: The test device comprises a test antenna, which is coupled to at least two built-in antennas and is used to obtain test signals of each built-in antenna.

3. The performance test system based on the built-in antenna according to claim 2, characterized in that: The test device includes a power meter, the test signal includes radiation power, and the preset standard signal includes preset standard power, wherein: The power meter is coupled to each built-in antenna respectively through the test antenna, and is used to obtain the radiation power of each built-in antenna, and compare the obtained radiation power with a preset standard power. If the obtained radiation power is greater than or equal to the preset standard power, the power meter outputs that the working state of the built-in antenna corresponding to the obtained radiation power is normal.

4. The performance test system based on the built-in antenna according to claim 1, characterized in that: The first switch sub-unit is a PNP transistor, and the second switch sub-unit is an NPN transistor.

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