CN110470915B - Circularly polarized antenna test system, calibration and signal test method - Google Patents

Abstract

The invention discloses a circularly polarized antenna testing system, calibration and signal testing method. The first vector network analysis module connected to the circularly polarized antenna, the second vector network analysis module connected to the first linearly polarized antenna, and the third vector network analysis module connected to the second linearly polarized antenna, through each A vector network analysis module performs different control and analysis operations on the circularly polarized antenna and dual-polarized antenna to be tested during the test process, which can not only quickly realize the calibration test of the test system, but also use simultaneous calibration and test based on the system calibration data. The signal radiation test results of the circularly polarized antenna to be tested on links with different polarization directions are obtained by means of measurement and comprehensive analysis. Compared with the existing circularly polarized antenna test method, the solution of the present invention has a faster test speed and higher test accuracy. .

Description

A circularly polarized antenna test system, calibration and signal test method

technical field

The invention relates to the technical field of millimeter wave frequency band antenna installation structure integration, in particular to a circularly polarized antenna test system, calibration and signal test method.

Background technique

In the field of modern communication applications, circularly polarized antennas are increasingly widely used in various communication systems due to their low sensitivity to the azimuth of the antenna and better quality of signals sent and received. The realization of the characteristics of the circularly polarized antenna requires that the antenna can simultaneously excite two linearly polarized waves that are orthogonal, the amplitudes of the polarized components are the same, and the phases differ by 90°. Therefore, before the application of a circularly polarized antenna, it is usually necessary to test its circularly polarized characteristics to ensure that the antenna has better circularly polarized performance.

In the prior art, the following methods are usually used to test a circularly polarized antenna: The first is to use a rotating linearly polarized antenna to measure. The implementation of this method requires the use of a high-speed rotating source, and it is easy to cause the cable to vibrate during rotation, resulting in measurement errors of amplitude and phase, and the results of left and right rotation of the antenna cannot be obtained at the same time, so the test efficiency is low. The second is to measure using a standard circularly polarized antenna. This method requires the use of a high-index circularly polarized antenna that meets the measurement requirements. This kind of antenna is difficult to manufacture and difficult to implement, and also cannot obtain the antenna left and right rotation results at the same time. The third method is to use a single-line polarized antenna to measure and combine the vertical and horizontal components. This method requires at least two measurements, and has shortcomings such as measurement drift error, sensitive phase measurement, and long test time.

It can be seen that the circularly polarized antenna testing method in the prior art has technical problems of low measurement accuracy and low measurement efficiency.

SUMMARY OF THE INVENTION

The present application provides a circularly polarized antenna test system, calibration and signal test method, which are used to solve the technical problems of low measurement accuracy and low measurement efficiency in the circularly polarized antenna test method in the prior art.

A first aspect of the present application provides a circularly polarized antenna test system, including:

A circularly polarized antenna test system, comprising:

The dual linearly polarized antenna includes a first linearly polarized antenna and a second linearly polarized antenna, and the polarization directions of the first linearly polarized antenna and the second linearly polarized antenna are perpendicular to each other;

a first vector network analysis module, connected to the circularly polarized antenna to be tested, for outputting a radio frequency signal to the circularly polarized antenna to be tested, and to analyze and obtain signal state parameters received by the circularly polarized antenna to be tested;

A second vector network analysis module, connected to the first linearly polarized antenna, for outputting a radio frequency signal to the first linearly polarized antenna, and analyzing and obtaining signal state parameters received by the first linearly polarized antenna ;

A third vector network analysis module, connected to the second linearly polarized antenna, is used for outputting a radio frequency signal for the second linearly polarized antenna, and analyzes and obtains a signal state parameter received by the second linearly polarized antenna.

Optionally, the circularly polarized antenna test system includes:

A vector network analyzer, including a processor arranged inside and connected to the first vector network analysis module, the second vector network analysis module, and the third vector network analysis module, respectively, and at the same time, the first vector network analysis module The vector network analysis module, the second vector network analysis module, and the third vector network analysis module are also arranged in the casing of the vector network analyzer.

Optionally, the circularly polarized antenna test system also includes:

a first rotating device for carrying the circularly polarized antenna to be measured, and the first rotating device can drive the circularly polarized antenna to be measured to rotate around a preset center in a preset plane;

The processor, connected with the first rotating device, is used to issue an instruction to make the first circularly polarized antenna to be at a zero-degree position where one of its polarization direction lines is coincident with the reference line. A vector network analysis module controls the circularly polarized antenna to be tested to transmit a preset signal; controls the second vector network analysis module to analyze and obtain the reception corresponding to the preset signal received by the first linearly polarized antenna The zero-degree first transmit amplitude-phase parameter of the signal; and control the third vector network analysis module to analyze and obtain the zero-degree second transmit amplitude-phase parameter of the received signal corresponding to the preset signal received by the second linearly polarized antenna ; After controlling the rotation of the first rotating device so that the circularly polarized antenna to be measured is at a 90-degree position where the polarization direction line is 90° with respect to the reference line, an instruction is issued to make the first The vector network analysis module continues to control the circularly polarized antenna to be tested to transmit a preset signal; controls the second vector network analysis module to analyze and obtain the reception corresponding to the preset signal received by the first linearly polarized antenna 90-degree second transmission amplitude and phase parameters of the signal; and controlling the third vector network analysis module to analyze and obtain the 90-degree second transmission amplitude of the received signal corresponding to the preset signal received by the second linearly polarized antenna Phase parameters; based on the zero-degree first emission amplitude-phase parameters, the zero-degree second emission amplitude-phase parameters, the 90-degree first emission amplitude-phase parameters, and the 90-degree second emission amplitude-phase parameters, determine the The amplitude and phase difference parameters corresponding to two mutually perpendicular polarized links in the transmit mode of the circularly polarized antenna to be tested.

Optionally, the processor is configured to issue an instruction to make the second vector network analysis module when the circularly polarized antenna to be measured is at a zero-degree position where one of its polarization direction lines is coincident with the reference line. The first linearly polarized antenna is controlled to send out a predetermined signal within a first time range, and an instruction is issued so that the first vector network analysis module controls the circularly polarized antenna to be measured to receive the predetermined signal, and analyzes and obtains a zero-degree first received amplitude and phase parameters of the received signal corresponding to the predetermined signal; sending an instruction to make the third vector network analysis module control the second linearly polarized antenna to send the predetermined signal within a second time range, and send instructing the first vector network analysis module to control the circularly polarized antenna to be tested to receive the predetermined signal, and to analyze and obtain a zero-degree second received amplitude and phase parameter of the received signal corresponding to the predetermined signal; control the After the first rotating device is rotated so that the circularly polarized antenna to be measured is at a 90-degree position where the polarization direction line is 90° with respect to the reference line, an instruction is issued to make the second vector network analysis module Send a predetermined signal through the first linearly polarized antenna within a third time range, issue an instruction to make the first vector network analysis module control the circularly polarized antenna to be tested to receive the predetermined signal, and analyze and obtain the 90-degree first received amplitude and phase parameters of the received signal corresponding to the predetermined signal; sending an instruction to make the third vector network analysis module send a predetermined signal through the second linearly polarized antenna within a fourth time range, and send an instruction so that the first vector network analysis module controls the circularly polarized antenna to be tested to receive the predetermined signal, and analyzes and obtains a 90-degree second received amplitude and phase parameter of the received signal corresponding to the predetermined signal; based on the The zero-degree first receiving amplitude-phase parameter, the zero-degree second receiving amplitude-phase parameter, the 90-degree first receiving amplitude-phase parameter, and the 90-degree second receiving amplitude-phase parameter, determine the circular polarization to be measured Amplitude and phase difference parameters corresponding to two mutually perpendicular polarized links of the antenna in the receiving mode, wherein the first time range and the second time range do not overlap; the third time range and the fourth time range do not overlap The time ranges do not overlap.

Optionally, the processor is configured to issue an instruction to enable the first vector network analysis module to control the circularly polarized antenna to be measured to issue a first signal; issue an instruction to enable the second vector network analysis module to control The first linearly polarized antenna receives the first signal, analyzes and obtains first amplitude and phase data corresponding to the received signal, and issues an instruction to enable the third vector network analysis module to control the second linearly polarized The antenna receives the first signal, and analyzes and obtains second amplitude and phase data corresponding to the received signal; based on the amplitude and phase difference corresponding to two mutually perpendicular polarized links in the transmit mode of the circularly polarized antenna to be measured parameters, the first amplitude-phase data, and the second amplitude-phase data, to obtain the left-handed signal state and the right-handed signal state of the circularly polarized antenna to be tested in the transmit mode.

Optionally, the processor is configured to issue an instruction to make the second vector network analysis module control the first linearly polarized antenna to be in a state of transmitting a second signal, and simultaneously issue an instruction to make the third vector The network analysis module controls the second linearly polarized antenna to be in a state of transmitting a third signal; sends an instruction to make the first vector network analysis module control the circularly polarized antenna to be measured to be in a receiving state, and in the second When the phase difference between the signal and the third signal is 90°, based on the analysis of the signal received by the circularly polarized antenna to be tested, the left-handed signal state of the circularly polarized antenna to be tested in the receiving mode is obtained, or the state of the left-handed signal in the receiving mode is obtained. When the phase difference between the second signal and the third signal is 270°, the right-hand signal state of the circularly polarized antenna to be tested in the receiving mode is obtained based on the analysis of the signal received by the circularly polarized antenna to be tested .

Optionally, the circularly polarized antenna test system also includes:

a second rotating device for carrying the dual linearly polarized antenna, the second rotating device can drive the first linearly polarized antenna and the second linearly polarized antenna to rotate around a predetermined center in a predetermined plane;

The processor is connected to the second rotating device and used to control the working state of the second rotating device.

A second aspect of the present application provides a circularly polarized antenna emission calibration test method, which is applied to the circularly polarized antenna test system described in the first aspect, including:

After the circularly polarized antenna to be measured is at a zero-degree position where one of its polarization direction lines is coincident with the reference line, send a preset signal through the circularly polarized antenna to be measured;

The preset signal is received by the first linearly polarized antenna, and the zero-degree first transmit amplitude and phase parameters of the received signal corresponding to the preset signal are obtained through analysis by the second vector network analysis module; The second linearly polarized antenna receives the preset signal, and the third vector network analysis module analyzes and obtains a zero-degree second transmission amplitude and phase parameter of the received signal corresponding to the preset signal;

Adjust the position of the circularly polarized antenna to be measured so that the circularly polarized antenna to be measured is at a 90-degree position where the polarization direction line is 90° with respect to the reference line, and passes through the circularly polarized antenna to be measured. The polarized antenna continues to send the preset signal;

The preset signal is received by the first linearly polarized antenna, and the 90-degree first transmit amplitude and phase parameters of the received signal corresponding to the preset signal are obtained through analysis by the second vector network analysis module; and The second linearly polarized antenna receives the preset signal, and the third vector network analysis module analyzes and obtains a 90-degree second transmission amplitude and phase parameter of the received signal corresponding to the preset signal;

Based on the zero-degree first emission amplitude-phase parameters, the zero-degree second emission amplitude-phase parameters, the 90-degree first emission amplitude-phase parameters, and the 90-degree second emission amplitude-phase parameters, the circle to be measured is determined The amplitude and phase difference parameters corresponding to two mutually perpendicular polarized links in the transmit mode of the polarized antenna.

A third aspect of the present application provides a circularly polarized antenna receiving calibration test method, which is applied to the circularly polarized antenna test system as described in the first aspect, including:

After the circularly polarized antenna to be measured is at a zero-degree position where one of its polarization direction lines is coincident with the reference line, a predetermined signal is sent through the first linearly polarized antenna within a first time range, and a predetermined signal is sent through the The circularly polarized antenna receives the predetermined signal, and the first vector network analysis module analyzes and obtains a zero-degree first received amplitude and phase parameter of the received signal corresponding to the predetermined signal; The second linearly polarized antenna sends out the predetermined signal, receives the predetermined signal through the circularly polarized antenna to be measured, and obtains the zero-degree first signal corresponding to the predetermined signal through the analysis of the first vector network analysis module. 2. Receiving amplitude and phase parameters; wherein, the first time range and the second time range do not overlap;

The position of the circularly polarized antenna to be measured is adjusted, so that the polarization direction line is at a 90-degree position of 90° relative to the reference line, and the antenna is sent out through the first linearly polarized antenna within a third time range. a predetermined signal, the predetermined signal is received by the circularly polarized antenna to be measured, and the 90-degree first received amplitude and phase parameters of the received signal corresponding to the predetermined signal are obtained through analysis by the first vector network analysis module; In the fourth time range, the predetermined signal is sent out through the second linearly polarized antenna, the predetermined signal is received through the circularly polarized antenna to be measured, and the predetermined signal is obtained through analysis by the first vector network analysis module. The 90-degree second received amplitude-phase parameter of the received signal corresponding to the signal; wherein, the third time range and the fourth time range do not overlap;

Based on the zero-degree first receiving amplitude-phase parameter, the zero-degree second receiving amplitude-phase parameter, the 90-degree first receiving amplitude-phase parameter, and the 90-degree second receiving amplitude-phase parameter, the to-be-measured parameter is determined. The corresponding amplitude and phase difference parameters of the circularly polarized antenna on the two vertically polarized links in the receive mode.

A fourth aspect of the present application provides a method for testing signals transmitted by a circularly polarized antenna, which is applied to the circularly polarized antenna test system described in the first aspect, including:

Control the circularly polarized antenna to be measured to send out the first signal through the first vector network analysis module;

The first signal is received by the first linearly polarized antenna, and the first amplitude and phase data corresponding to the received signal are obtained through analysis by the second vector network analysis module; and received by the second linearly polarized antenna The first signal is analyzed by the third vector network analysis module to obtain second amplitude and phase data corresponding to the received signal;

Based on the amplitude and phase difference parameters corresponding to two mutually perpendicular polarized links of the circularly polarized antenna to be tested in the transmit mode, the first amplitude and phase data, and the second amplitude and phase data, the to-be-measured phase is obtained. Measure the left-handed signal state and right-handed signal state of the circularly polarized antenna in the transmit mode.

A fifth aspect of the present application provides a method for testing a signal received by a circularly polarized antenna, which is applied to the circularly polarized antenna test system described in the first aspect, including:

The first linearly polarized antenna is controlled to be in the state of transmitting the second signal by the second vector network analysis module, and at the same time, the second linearly polarized antenna is controlled by the third vector network analysis module to be in the state of transmitting the third signal; wherein , the phase difference between the second signal and the third signal is 90° or 270°;

The circularly polarized antenna to be measured is controlled to be in a receiving state by the first vector network analysis module, and when the phase difference between the second signal and the third signal is 90°, based on the circularly polarized antenna to be measured Analyze the signal received by the polarization antenna to obtain the left-handed signal state of the circularly polarized antenna to be tested in the receiving mode, or when the phase difference between the second signal and the third signal is 270°, based on the The signal received by the measuring circularly polarized antenna is analyzed to obtain the right-handed signal state of the said circularly polarized antenna to be measured in the receiving mode.

A sixth aspect of the present application provides a computer apparatus, the apparatus includes a processing device, and the processing device is configured to implement the steps of the methods described in the second, third, fourth, and fifth aspects when executing the computer program stored in the memory.

A seventh aspect of the present application provides a computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the methods described in the second, third, fourth, and fifth aspects are implemented. step.

One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

The circularly polarized antenna test system in the embodiment of the present application is configured by setting a dual linearly polarized antenna including a first linearly polarized antenna and a second linearly polarized antenna whose polarization directions are perpendicular to each other, and a dual linearly polarized antenna connected to the circularly polarized antenna to be tested A first vector network analysis module, a second vector network analysis module connected to the first linearly polarized antenna, and a third vector network analysis module connected to the second linearly polarized antenna, through each vector network analysis module During the test process, different control and analysis operations are performed on the circularly polarized antenna and dual-polarized antenna to be tested, which can not only quickly realize the calibration test of the test system, but also quickly transmit and receive the circularly polarized antenna based on the system calibration data. In the signal test process, the test results on the links with different polarization directions can be obtained by simultaneous measurement and comprehensive analysis, which can provide an accurate evaluation basis for the radiation performance evaluation of the circularly polarized antenna. effect. Compared with the existing circularly polarized antenna testing method, the solution of the present invention has faster testing speed and higher testing accuracy.

Description of drawings

1 is a structural diagram of a circularly polarized antenna test system provided by an embodiment of the present invention;

2 is a flowchart of a method for testing a circularly polarized antenna emission calibration provided by an embodiment of the present invention;

3 is a flowchart of a method for testing a circularly polarized antenna receiving calibration provided by an embodiment of the present invention;

4 is a flowchart of a method for testing a circularly polarized antenna transmit signal according to an embodiment of the present invention;

5 is a flowchart of a method for testing a received signal of a circularly polarized antenna according to an embodiment of the present invention;

6 is a schematic diagram of a processing result of a method for testing a circularly polarized antenna transmitted signal according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a processing result of a method for testing a received signal of a circularly polarized antenna according to an embodiment of the present invention.

Detailed ways

The present application provides a circularly polarized antenna test system, calibration and signal test method, which are used to solve the technical problems of low measurement accuracy and low measurement efficiency in the circularly polarized antenna test method in the prior art.

The technical solutions in the embodiments of the present application are to solve the above-mentioned technical problems, and the general idea is as follows:

The circularly polarized antenna test system in the embodiment of the present application is configured by setting a dual linearly polarized antenna including a first linearly polarized antenna and a second linearly polarized antenna whose polarization directions are perpendicular to each other, and a dual linearly polarized antenna connected to the circularly polarized antenna to be tested A first vector network analysis module, a second vector network analysis module connected to the first linearly polarized antenna, and a third vector network analysis module connected to the second linearly polarized antenna, through each vector network analysis module During the test process, different control and analysis operations are performed on the circularly polarized antenna and dual-polarized antenna to be tested, which can not only quickly realize the calibration test of the test system, but also quickly transmit and receive the circularly polarized antenna based on the system calibration data. In the signal test process, the test results on the links with different polarization directions can be obtained by simultaneous measurement and comprehensive analysis, which can provide an accurate evaluation basis for the radiation performance evaluation of the circularly polarized antenna. effect. Compared with the existing circularly polarized antenna testing method, the solution of the present invention has faster testing speed and higher testing accuracy.

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments. If there is no conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

Example 1

Please refer to FIG. 1 to FIG. 5 , Embodiment 1 of the present application provides a circularly polarized antenna test system, including:

The dual linearly polarized antenna includes a first linearly polarized antenna 1011 and a second linearly polarized antenna 1012, and the polarization directions of the first linearly polarized antenna 1011 and the second linearly polarized antenna 1012 are perpendicular to each other;

The first vector network analysis module 102 is connected to the circularly polarized antenna to be measured, and is used to output a radio frequency signal to the circularly polarized antenna to be measured, and analyze and obtain the signal state parameters received by the circularly polarized antenna to be measured;

The second vector network analysis module 103 is connected to the first linearly polarized antenna 1011 for outputting radio frequency signals to the first linearly polarized antenna 1011, and analyzes and obtains that the first linearly polarized antenna 1011 receives The signal state parameter of ;

The third vector network analysis module 104 is connected to the second linearly polarized antenna 1012 for outputting radio frequency signals for the second linearly polarized antenna 1012, and analyzes and obtains the signal state parameters received by the second linearly polarized antenna 1012 .

Further, the first vector network analysis module, the second vector network analysis module, and the third vector network analysis module in the embodiments of the present application can all be integrated into a vector network analyzer, and are respectively connected with A processor 105 provided in the housing of the vector network analyzer is connected. Therefore, the circularly polarized antenna test system can be further simplified, which has the technical effect of reducing the structural complexity of the system.

Further, in order to improve the control efficiency of the test system, the circularly polarized antenna test system also includes:

The circularly polarized antenna test system also includes:

The first rotating device is used to carry the circularly polarized antenna to be tested, so that the circularly polarized antenna to be tested can be rotated around a preset circle center in a preset plane.

The processor 105 can be connected with the first rotating device, and by rotating the circularly polarized antenna to be measured in a preset plane, two mutually perpendicular lines of the circularly polarized antenna to be measured can be automatically controlled. The purpose of the polarization direction.

The circularly polarized antenna test system in the embodiment of the present application may perform a calibration test on the circularly polarized antenna test system before performing the signal test related to the circularly polarized characteristic of the circularly polarized antenna to be tested, and obtain the circularly polarized antenna respectively . The antenna test system calibrates data for each link of the circularly polarized antenna to be tested in the signal transceiving mode.

First , in the process of calibrating and testing the transmit chain of the circularly polarized antenna to be tested by the circularly polarized antenna test system , the processor is used to set the circularly polarized antenna to be tested in one of its polarization direction lines. After the zero-degree position is coincident with respect to the reference line, an instruction is issued to make the first vector network analysis module control the circularly polarized antenna to be measured to transmit a preset signal; zero-degree first transmit amplitude and phase parameters of the received signal corresponding to the preset signal received by the first linearly polarized antenna; and controlling the third vector network analysis module to analyze and obtain the received signal received by the second linearly polarized antenna The zero-degree second transmission amplitude and phase parameter of the received signal corresponding to the preset signal; controlling the rotation of the first rotating device, so that the circularly polarized antenna to be measured is in the polarization direction line relative to the reference After the line is at a 90-degree position of 90°, an instruction is issued to make the first vector network analysis module continue to control the circularly polarized antenna to be measured to transmit a preset signal; control the second vector network analysis module to analyze and obtain a the 90-degree second transmit amplitude and phase parameters of the received signal corresponding to the preset signal received by the first linearly polarized antenna; and control the third vector network analysis module to analyze and obtain the received signal received by the second linearly polarized antenna The 90-degree second transmission amplitude-phase parameter of the received signal corresponding to the preset signal; based on the zero-degree first transmission amplitude-phase parameter, the zero-degree second transmission amplitude-phase parameter, the 90-degree first transmission amplitude and phase parameter The phase parameter and the 90-degree second transmission amplitude-phase parameter determine the amplitude-phase difference corresponding to the two mutually perpendicular polarized links in the transmission mode of the circularly polarized antenna to be tested by the test system of the embodiment of the present application parameter.

The following examples illustrate:

也就是分别获得了待测圆极化天线处于零度位置时的水平极化方向(式中用字母H表征)和垂直极化方向(式中用字母V表征)的幅度相位。然后再将待测圆极化天线相对所述零度位置顺时针旋转90°(也就是将待测圆极化天线调整到90度位置)，再次分别测得第一线极化天线反馈信号和第二线极化天线反馈信号分别对应的幅度相位

也就是分别获得了待测圆极化天线处于90°位时的水平极化方向和垂直极化方向的幅度相位。则本申请测试系统针对所述待测圆极化天线在发射模式(式中用字母T、t表征)下的水平链路和垂直链路的幅度相位差异为：Example 1, before using the circularly polarized antenna test system of the embodiment of the present application to perform the transmission chain calibration test, the connection relationship of each device may be as shown in FIG. 1 , the first vector network analysis module, the second vector The network analysis module and the third vector network analysis module can be set in a vector network analyzer (hereinafter referred to as a vector network), and the antenna to be tested is at a zero-degree position. Before the test, set the phase control function of the vector network, so that the phase enable of the second vector network analysis module and the third vector network analysis module is turned on and the phase values are both set to 0, that is, Phase2=0 and Phase3=0, and set the test at the same time. Parameters such as frequency, output power, sweep mode, etc., the above setting methods can be used as preparation settings before testing. In this example, the test frequency can be set to F0, three ports (respectively: the connection port between the first vector network analysis module and the circularly polarized antenna to be tested, the connection port between the second vector network analysis module and the first linearly polarized antenna) The output power of the connection port, the connection port of the third vector network analysis module and the second linearly polarized antenna) are: Power1=0, Power2=0 and Power3=0, and the scanning mode can be set to alternate scanning or point-by-point scanning. After starting the test, the preset signal is transmitted through the circularly polarized antenna to be tested, so that the amplitude and phase corresponding to the feedback signal of the first linearly polarized antenna and the feedback signal of the second linearly polarized antenna can be measured respectively.

That is, the amplitude and phase of the horizontal polarization direction (represented by the letter H in the formula) and the vertical polarization direction (represented by the letter V in the formula) when the circularly polarized antenna to be measured is at the zero-degree position are obtained respectively. Then, rotate the circularly polarized antenna to be measured 90° clockwise relative to the zero-degree position (that is, adjust the circularly polarized antenna to be measured to the 90-degree position), and measure the feedback signal of the first linearly polarized antenna and the first linearly polarized antenna respectively. The amplitude and phase corresponding to the feedback signals of the two linearly polarized antennas

That is, the amplitude and phase of the horizontal polarization direction and the vertical polarization direction when the circularly polarized antenna to be tested is at 90° are obtained respectively. Then the amplitude phase difference of the horizontal link and the vertical link of the test system of the present application for the circularly polarized antenna to be measured in the transmission mode (characterized by the letter T and t in the formula) is:

(ΔAmp _T , ΔPhase _T )=(A _t00 +A _t01 -A _t10 -A _t11 , P _t00 +P _t01 -P _t10 -P _t11 +180)/2; where Amp is an amplitude value and Phase is a phase value.

It can be seen that in the system emission calibration test of the technical solution of the present application, the horizontal polarization and the vertical polarization can be measured simultaneously.

It should be noted that the zero-degree position is a zero-degree position where a polarization direction line of the circularly polarized antenna to be tested is coincident with the reference line. The polarization direction line may specifically refer to a straight line where a linearly polarized wave excited by the circularly polarized antenna to be measured is located, and the reference line may be set by itself as required. The 90-degree position may refer to the polarization direction line of the circularly polarized antenna to be measured, on the plane where the two vertically polarized waves excited by the circularly polarized antenna to be measured are located, relative to the The reference line is 90 degrees. The "horizontal polarization" and "vertical polarization" may respectively refer to the directions of the two mutually perpendicular linearly polarized waves excited by the circularly polarized antenna to be measured.

On the other hand, in the process of calibrating and testing the receiving link of the circularly polarized antenna test system for the circularly polarized antenna to be tested , the processor is configured to perform a test when the circularly polarized antenna to be tested is in one of its polarizations. When the direction line is at a coincident zero-degree position with respect to the reference line, an instruction is issued so that the second vector network analysis module controls the first linearly polarized antenna to issue a predetermined signal within a first time range, and an instruction is issued to make the The first vector network analysis module controls the circularly polarized antenna to be tested to receive the predetermined signal, and analyzes and obtains a zero-degree first received amplitude and phase parameter of the received signal corresponding to the predetermined signal; The vector network analysis module controls the second linearly polarized antenna to send out the predetermined signal within a second time range, and sends an instruction to make the first vector network analysis module control the circularly polarized antenna to be tested to receive the predetermined signal , and analyze and obtain the zero-degree second received amplitude-phase parameter of the received signal corresponding to the predetermined signal; control the rotation of the first rotating device, so that the circularly polarized antenna to be measured is in the polarization direction line relative to the After the reference line is at a 90-degree position of 90°, an instruction is issued to cause the second vector network analysis module to issue a predetermined signal through the first linearly polarized antenna within a third time range, and an instruction is issued to make the The first vector network analysis module controls the circularly polarized antenna to be tested to receive the predetermined signal, and analyzes and obtains a 90-degree first received amplitude and phase parameter of the received signal corresponding to the predetermined signal; The three vector network analysis module sends a predetermined signal through the second linearly polarized antenna within a fourth time range, and sends an instruction to make the first vector network analysis module control the circularly polarized antenna to be tested to receive the predetermined signal, and analyze and obtain the 90-degree second receiving amplitude-phase parameter of the received signal corresponding to the predetermined signal; based on the zero-degree first receiving amplitude-phase parameter, the zero-degree second receiving amplitude-phase parameter, and the 90-degree first receiving The amplitude and phase parameters and the 90-degree second receiving amplitude and phase parameters determine the amplitude and phase difference parameters corresponding to the two mutually perpendicular polarized links in the receiving mode of the test system of the present application for the circularly polarized antenna to be tested , wherein the first time range and the second time range do not overlap; the third time range and the fourth time range do not overlap.

The following examples illustrate:

然后再将待测圆极化天线调整到所述90度位置，再次先后依次分别测得水平极化方向和垂直极化方向的幅度相位

则本申请测试系统针对该待测圆极化天线在接收模式(式中用字母R、r表征)下的水平链路和垂直链路的幅度相位差异为：Example 2 is also the same as the preparation setting before the test in Example 1, and the circularly polarized antenna to be tested is adjusted to be at the zero-degree position. After starting the test, the same predetermined signal can be transmitted through the first linearly polarized antenna and the second linearly polarized antenna, respectively, and the circularly polarized antenna to be tested can be set to the mode of receiving the signal. In this way, the amplitude and phase corresponding to the signal fed back by the circularly polarized antenna to be measured can be measured successively, that is, the amplitude and phase of the horizontal polarization and the vertical polarization of the circularly polarized antenna to be measured can be measured successively.

Then adjust the circularly polarized antenna to be measured to the 90-degree position, and measure the amplitude and phase of the horizontal polarization direction and the vertical polarization direction in turn.

Then, the amplitude phase difference between the horizontal link and the vertical link of the test system of the present application for the circularly polarized antenna to be tested in the receiving mode (represented by letters R and r in the formula) is:

(ΔAmp _R , ΔPhase _R )=(A _r00 +A _r01 -A _r10 -A _r11 , P _r00 +P _r01 -P _r10 -P _r11 +180)/2.

After the system calibration data of the test system of the present application for the circularly polarized antenna to be tested is obtained, the signal transmission and reception performance of the circularly polarized antenna to be tested can be tested .

First, during the signal testing process when the circularly polarized antenna to be tested is in the transmit mode, the processor is used to issue an instruction to make the first vector network analysis module control the circularly polarized antenna to be tested to transmit the first signal; issue an instruction to make the second vector network analysis module control the first linearly polarized antenna to receive the first signal, analyze and obtain first amplitude and phase data corresponding to the received signal, and issue an instruction to make The third vector network analysis module controls the second linearly polarized antenna to receive the first signal, and analyzes and obtains second amplitude and phase data corresponding to the received signal; based on the circularly polarized antenna to be tested in the transmit mode The amplitude and phase difference parameters corresponding to the next two mutually perpendicular polarized links, the first amplitude and phase data, and the second amplitude and phase data, to obtain the left-handed signal of the circularly polarized antenna to be tested in the transmit mode state and the right hand signal state.

The following examples illustrate:

Example 3: When measuring the transmitted signal, the circularly polarized antenna to be measured can be adjusted to be in the signal transmitting state, and the dual linearly polarized antenna is in the signal receiving state. The first signal to be transmitted is output to the circularly polarized antenna to be measured by the first vector network analysis module. Then, the second vector network analysis module and the third vector network analysis module respectively measure the signals received by the first linearly polarized antenna and the second linearly polarized antenna, and obtain the first linearly polarized antenna respectively. The first amplitude and phase data (Amp2 _T , Phase2 _T ) of the signal received by the linearly polarized antenna and the second amplitude and phase data (Amp3 _T , Phase3 _T ) of the signal received by the second linearly polarized antenna. Then combine the measured amplitude and phase data of the two signals with the above measured amplitude and phase difference data of the horizontal link and the vertical link of the circularly polarized antenna to be measured in the transmit mode, and then the circularly polarized antenna to be measured can be obtained. The antenna transmits the left-handed signal _FL and the right-handed signal FR in the transmitting state _. The specific calculation formula can be as follows:

P_H＝Phase2_T，

P_V＝Phase3_T+ΔPhase_T。以发射方向图为例，上述过程的处理结果可以为如图6所示。in,

P _H = Phase2 _T ,

PV = Phase3 _T + _{ΔPhase T} . Taking the emission pattern as an example, the processing result of the above process may be as shown in FIG. 6 .

During the signal testing process when the circularly polarized antenna to be tested is in the receiving mode, the processor is configured to issue an instruction to make the second vector network analysis module control the first linearly polarized antenna to be in the transmitting second mode. signal state, and at the same time issue an instruction to make the third vector network analysis module control the second linearly polarized antenna to be in a state of transmitting a third signal; issue an instruction to make the first vector network analysis module control the to-be-tested The circularly polarized antenna is in a receiving state, and when the phase difference between the second signal and the third signal is 90°, the circularly polarized antenna to be measured is obtained by analyzing the signal received by the circularly polarized antenna to be measured The left-handed signal state of the polarization antenna in the receiving mode, or when the phase difference between the second signal and the third signal is 270°, based on the analysis of the signal received by the circularly-polarized antenna to be measured. Measure the right-hand signal state of a circularly polarized antenna in receive mode.

The following examples illustrate:

Example 4: The output power of the second vector network analysis module and the third vector network analysis module can be set as Power2=P2, Power3=P3, so that -ΔAmp _R =P2-P3, and set the third output power transmitted by the second linearly polarized antenna. The phase of the signal is Phase3=ΔPhase _R (that is, the phase difference parameter of the circularly polarized antenna to be tested in the receiving mode obtained in Example 2). When the phase of the second signal transmitted by the first linearly polarized antenna is set to Phase3 =360°*M+90°, when M is an integer, the left-handed signal of the circularly polarized antenna to be tested in the receiving mode can be measured by the first vector network analysis module; The phase of the second signal is set to Phase2=360°*N+270°, and when N is an integer, the right-handed signal of the circularly polarized antenna to be tested in the receiving mode can be measured by the first vector network analysis module. In the test process, two point phase scans can be performed respectively. Taking the receiving pattern as an example, the processing result of the above process may be as shown in FIG. 7 .

Further, the circularly polarized antenna test system of the embodiment of the present application may also include:

a second rotating device for carrying the dual linearly polarized antenna, the second rotating device can drive the first linearly polarized antenna and the second linearly polarized antenna to rotate around a predetermined center in a predetermined plane;

The processor is connected to the second rotating device and used to control the working state of the second rotating device.

Through the above device and arrangement, the system processor can adjust the orientation of the linear polarization of the first linearly polarized antenna and the second linearly polarized antenna by adjusting the rotational direction and rotational displacement of the second rotating device. Realize the adjustment of the two linear polarization directions of the dual linearly polarized antenna or the polarization direction of the circularly polarized antenna during the test process without activating the first rotating device or cooperating with the working state of the first rotating device to meet the test requirements. requirements in the process.

It should be pointed out that, specifically, the processor 105 may be a general-purpose central processing unit (CPU), an application specific integrated circuit (English: Application Specific Integrated Circuit, ASIC for short), or an or Multiple integrated circuits used to control program execution.

Further, the processor 105 may further include a memory, and the number of the memory may be one or more. The memory may include read only memory (English: Read Only Memory, ROM for short), random access memory (English: Random Access Memory, RAM for short), and disk memory.

It can be seen from this that the circularly polarized antenna test system in the embodiment of the present application is configured by setting a dual linearly polarized antenna including a first linearly polarized antenna and a second linearly polarized antenna whose polarization directions are perpendicular to each other, and a circular polarized antenna to be tested. The first vector network analysis module connected to the linearly polarized antenna, the second vector network analysis module connected to the first linearly polarized antenna, and the third vector network analysis module connected to the second linearly polarized antenna, through each vector The network analysis module performs different control and analysis operations on the circularly polarized antenna and dual-polarized antenna to be tested during the test process. The antenna can quickly perform signal testing in the sending and receiving state, and during the signal testing process, simultaneous measurement and comprehensive analysis can be used to obtain test results on links with different polarization directions, which can provide information for the radiation performance evaluation of circularly polarized antennas. Accurate assessment based on role. Compared with the existing circularly polarized antenna testing method, the solution of the present invention has faster testing speed and higher testing accuracy.

Embodiment 2

Referring to FIG. 2 , the second embodiment of the present application provides a circularly polarized antenna emission calibration test method, which is applied to the circularly polarized antenna test system as described in the first embodiment, including:

Step 201: After the circularly polarized antenna to be tested is at a zero-degree position where one of its polarization direction lines is coincident with the reference line, send a preset signal through the circularly polarized antenna to be tested;

Step 202: Receive the preset signal through the first linearly polarized antenna, and analyze and obtain a zero-degree first transmit amplitude and phase parameter of the received signal corresponding to the preset signal by the second vector network analysis module; and receiving the preset signal through the second linearly polarized antenna, and analyzing and obtaining a zero-degree second transmit amplitude and phase parameter of the received signal corresponding to the preset signal by the third vector network analysis module;

Step 203: Adjust the position of the circularly polarized antenna to be measured so that the circularly polarized antenna to be measured is at a 90-degree position where the polarization direction line is 90° with respect to the reference line, and passes the The circularly polarized antenna to be tested continues to send the preset signal;

Step 204: Receive the preset signal through the first linearly polarized antenna, and analyze and obtain the 90-degree first transmit amplitude and phase parameters of the received signal corresponding to the preset signal by the second vector network analysis module ; And receive the preset signal through the second linearly polarized antenna, and analyze and obtain the 90-degree second transmission amplitude phase parameter of the received signal corresponding to the preset signal by the third vector network analysis module;

Step 205: Based on the zero-degree first transmission amplitude-phase parameter, the zero-degree second transmission amplitude-phase parameter, the 90-degree first transmission amplitude-phase parameter, and the 90-degree second transmission amplitude-phase parameter, determine the The amplitude and phase difference parameters corresponding to two mutually perpendicular polarized links in the transmit mode of the circularly polarized antenna to be tested.

The circularly polarized antenna test system in the aforementioned embodiment of FIG. 1, its various variations and specific examples are also applicable to the circularly polarized antenna emission calibration test method of this embodiment, through the foregoing detailed description of the circularly polarized antenna test system , those skilled in the art can clearly know the implementation method of the circularly polarized antenna emission calibration test method in this embodiment, so for the brevity of the description, it is not described in detail here.

Embodiment 3

Referring to FIG. 3 , Embodiment 3 of the present application provides a method for calibrating a circularly polarized antenna reception, which is applied to the circularly polarized antenna test system described in Embodiment 1, including:

Step 301: After the circularly polarized antenna to be tested is at a zero-degree position where one of its polarization direction lines is coincident with the reference line, send a predetermined signal through the first linearly polarized antenna within a first time range, and pass The circularly polarized antenna to be tested receives the predetermined signal, and the first vector network analysis module analyzes and obtains the zero-degree first received amplitude and phase parameters of the received signal corresponding to the predetermined signal; within the second time range The predetermined signal is sent out through the second linearly polarized antenna, the predetermined signal is received through the circularly polarized antenna to be measured, and the received signal corresponding to the predetermined signal is obtained by the analysis of the first vector network analysis module The second received amplitude and phase parameters of zero degrees; wherein, the first time range and the second time range do not overlap;

Step 302: Adjust the position of the circularly polarized antenna to be measured, so that the polarization direction line is at a 90-degree position of 90° relative to the reference line, and passes through the first linear pole within a third time range. The antenna sends a predetermined signal, receives the predetermined signal through the circularly polarized antenna to be tested, and analyzes the first vector network analysis module to obtain a 90-degree first received amplitude phase of the received signal corresponding to the predetermined signal. parameter; in the fourth time range, the predetermined signal is sent through the second linearly polarized antenna, the predetermined signal is received through the circularly polarized antenna to be tested, and the first vector network analysis module analyzes and obtains the The 90-degree second received amplitude-phase parameter of the received signal corresponding to the predetermined signal; wherein the third time range does not overlap with the fourth time range;

Step 303: Based on the zero-degree first receiving amplitude-phase parameter, the zero-degree second receiving amplitude-phase parameter, the 90-degree first receiving amplitude-phase parameter, and the 90-degree second receiving amplitude-phase parameter, determine the The amplitude and phase difference parameters corresponding to the two vertically polarized links in the receiving mode of the circularly polarized antenna to be tested.

The circularly polarized antenna test system in the aforementioned embodiment of FIG. 1, its various variations and specific examples are also applicable to the circularly polarized antenna emission calibration test method of this embodiment, through the foregoing detailed description of the circularly polarized antenna test system , those skilled in the art can clearly know the implementation method of the circularly polarized antenna emission calibration test method in this embodiment, so for the brevity of the description, it is not described in detail here.

Embodiment 4

Referring to FIG. 4 , Embodiment 4 of the present application provides a method for testing a signal transmitted by a circularly polarized antenna, which is applied to the circularly polarized antenna test system described in Embodiment 1, including:

Step 401: control the circularly polarized antenna to be measured to send out a first signal through a first vector network analysis module;

Step 402: Receive the first signal through the first linearly polarized antenna, and analyze and obtain first amplitude and phase data corresponding to the received signal by the second vector network analysis module; and obtain the first amplitude and phase data corresponding to the received signal through the second linearly polarized antenna The first signal is received by the antenna, and the second amplitude and phase data corresponding to the received signal is obtained by the analysis of the third vector network analysis module;

Step 403: Based on the amplitude and phase difference parameters, the first amplitude and phase data, and the second amplitude and phase data corresponding to the two mutually perpendicular polarized links in the transmit mode of the circularly polarized antenna to be tested, obtain: The left-handed signal state and the right-handed signal state of the circularly polarized antenna to be tested in the transmit mode.

The circularly polarized antenna test system in the aforementioned embodiment of FIG. 1, its various variations and specific examples are also applicable to the circularly polarized antenna emission calibration test method of this embodiment, through the foregoing detailed description of the circularly polarized antenna test system , those skilled in the art can clearly know the implementation method of the circularly polarized antenna emission calibration test method in this embodiment, so for the brevity of the description, it is not described in detail here.

Embodiment 5

Referring to FIG. 5 , Embodiment 5 of the present application provides a method for testing a received signal of a circularly polarized antenna, which is applied to the circularly polarized antenna test system described in Embodiment 1, including:

Step 501: Control the first linearly polarized antenna to be in a state of transmitting a second signal through a second vector network analysis module, and at the same time, control the second linearly polarized antenna to be in a state of transmitting a third signal through a third vector network analysis module. state; wherein, the phase difference between the second signal and the third signal is 90° or 270°;

Step 502: Control the circularly polarized antenna to be measured to be in a receiving state through the first vector network analysis module, and when the phase difference between the second signal and the third signal is 90°, based on the The signal received by the measuring circularly polarized antenna is analyzed to obtain the left-handed signal state of the circularly polarized antenna to be measured in the receiving mode, or when the phase difference between the second signal and the third signal is 270°, based on The signal received by the circularly polarized antenna to be tested is analyzed to obtain the right-handed signal state of the circularly polarized antenna to be tested in the receiving mode.

The circularly polarized antenna test system in the aforementioned embodiment of FIG. 1, its various variations and specific examples are also applicable to the circularly polarized antenna emission calibration test method of this embodiment, through the foregoing detailed description of the circularly polarized antenna test system , those skilled in the art can clearly know the implementation method of the circularly polarized antenna emission calibration test method in this embodiment, so for the brevity of the description, it is not described in detail here.

An embodiment of the present application further provides a computer apparatus, the apparatus includes a processing device, and the processing device is configured to implement the steps of the methods described in Embodiments 2 to 5 when executing the computer program stored in the memory.

An embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the methods described in Embodiments 2 to 5 are implemented.

While the preferred embodiments of the present application have been described, additional changes and modifications to these embodiments may occur to those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiment and all changes and modifications that fall within the scope of this application.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Further, each method step in the technical solution of the present application can be reversed, and the sequence of the method can be changed to still fall within the scope of the invention covered by the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (12)

1. a circularly polarized antenna test system, is characterized in that, comprises: The dual linearly polarized antenna includes a first linearly polarized antenna and a second linearly polarized antenna, and the polarization directions of the first linearly polarized antenna and the second linearly polarized antenna are perpendicular to each other; a first vector network analysis module, connected to the circularly polarized antenna to be tested, for outputting a radio frequency signal to the circularly polarized antenna to be tested, and to analyze and obtain signal state parameters received by the circularly polarized antenna to be tested; A second vector network analysis module, connected to the first linearly polarized antenna, for outputting a radio frequency signal to the first linearly polarized antenna, and analyzing and obtaining signal state parameters received by the first linearly polarized antenna ; a third vector network analysis module, connected to the second linearly polarized antenna, for outputting a radio frequency signal for the second linearly polarized antenna, and analyzing and obtaining signal state parameters received by the second linearly polarized antenna; a first rotating device for carrying the circularly polarized antenna to be measured, and the first rotating device can drive the circularly polarized antenna to be measured to rotate around a preset center in a preset plane; A processor, connected to the first rotating device, is used to issue an instruction to make the first vector after the circularly polarized antenna to be measured is at a zero-degree position where one of its polarization direction lines is coincident with the reference line The network analysis module controls the circularly polarized antenna to be tested to transmit a preset signal; controls the second vector network analysis module to analyze and obtain the received signal corresponding to the preset signal received by the first linearly polarized antenna. zero-degree first transmit amplitude and phase parameters; and controlling the third vector network analysis module to analyze and obtain zero-degree second transmit amplitude and phase parameters of the received signal received by the second linearly polarized antenna and corresponding to the preset signal; controlling After the first rotating device is rotated so that the circularly polarized antenna to be tested is at a 90-degree position where the polarization direction line is 90° with respect to the reference line, an instruction is issued to make the first vector network The analysis module continues to control the circularly polarized antenna to be tested to transmit a preset signal; controls the second vector network analysis module to analyze and obtain the received signal corresponding to the preset signal received by the first linearly polarized antenna. 90-degree second transmit amplitude and phase parameters; and control the third vector network analysis module to analyze and obtain the 90-degree second transmit amplitude and phase parameters of the received signal corresponding to the preset signal received by the second linearly polarized antenna ; Based on the zero-degree first emission amplitude-phase parameters, the zero-degree second emission amplitude-phase parameters, the 90-degree first emission amplitude-phase parameters, and the 90-degree second emission amplitude-phase parameters, determine the to-be-measured The amplitude and phase difference parameters corresponding to two mutually perpendicular polarized links in the transmit mode of a circularly polarized antenna. 2. The system of claim 1, wherein the circularly polarized antenna test system comprises: A vector network analyzer includes a processor arranged inside and connected to the first vector network analysis module, the second vector network analysis module, and the third vector network analysis module, respectively, and at the same time, the The first vector network analysis module, the second vector network analysis module, and the third vector network analysis module are also arranged in the casing of the vector network analyzer. 3. The test system according to claim 2, wherein the processor is configured to, when the circularly polarized antenna to be measured is at a zero-degree position where one of its polarization direction lines is coincident with respect to the reference line, Issue an instruction to make the second vector network analysis module control the first linearly polarized antenna to issue a predetermined signal within a first time range, and issue an instruction to make the first vector network analysis module control the circular pole to be measured The antenna receives the predetermined signal, and analyzes and obtains the zero-degree first received amplitude and phase parameters of the received signal corresponding to the predetermined signal; and sends an instruction to make the third vector network analysis module control the The second linearly polarized antenna sends the predetermined signal, and sends an instruction so that the first vector network analysis module controls the circularly polarized antenna to be measured to receive the predetermined signal, and analyzes and obtains the received signal corresponding to the predetermined signal The second receiving amplitude and phase parameters of zero degrees; controlling the rotation of the first rotating device so that the circularly polarized antenna to be measured is at a 90-degree position where the polarization direction line is 90° relative to the reference line, Issue an instruction to make the second vector network analysis module send a predetermined signal through the first linearly polarized antenna within a third time range, and issue an instruction to make the first vector network analysis module control the circular pole to be measured receiving the predetermined signal through the antenna, and analyzing and obtaining the 90-degree first received amplitude and phase parameters of the received signal corresponding to the predetermined signal; issuing an instruction to make the third vector network analysis module pass through all the The second linearly polarized antenna sends a predetermined signal, and sends an instruction to make the first vector network analysis module control the circularly polarized antenna to be measured to receive the predetermined signal, and analyze and obtain the received signal corresponding to the predetermined signal. 90-degree second receiving amplitude-phase parameters; based on the zero-degree first receiving amplitude-phase parameters, the zero-degree second receiving amplitude-phase parameters, the 90-degree first receiving amplitude-phase parameters, and the 90-degree second receiving amplitude and phase parameters Phase parameters, determine the amplitude and phase difference parameters corresponding to the two mutually perpendicular polarized links in the receiving mode of the circularly polarized antenna to be tested, wherein the first time range and the second time range do not overlap ; the third time range does not coincide with the fourth time range. 4. The test system according to claim 3, wherein the processor is configured to issue an instruction to cause the first vector network analysis module to control the circularly polarized antenna to be tested to issue a first signal; an instruction to cause the second vector network analysis module to control the first linearly polarized antenna to receive the first signal, analyze and obtain first amplitude and phase data corresponding to the received signal, and issue an instruction to cause the first linearly polarized antenna to receive the first signal. The three-vector network analysis module controls the second linearly polarized antenna to receive the first signal, and analyzes and obtains second amplitude and phase data corresponding to the received signal; The amplitude and phase difference parameters, the first amplitude and phase data, and the second amplitude and phase data corresponding to the polarized links that are perpendicular to each other are obtained, and the left-hand signal state and the right-hand signal state of the circularly polarized antenna to be measured in the transmit mode are obtained. Rotation signal status. 5. The test system according to claim 4, wherein the processor is configured to issue an instruction to cause the second vector network analysis module to control the first linearly polarized antenna to be in a state of transmitting the second signal. state, and at the same time issue an instruction to make the third vector network analysis module control the second linearly polarized antenna to be in a state of transmitting a third signal; issue an instruction to make the first vector network analysis module control the circular pole to be measured When the phase difference between the second signal and the third signal is 90°, the circularly polarized antenna to be measured is obtained by analyzing the signal received by the circularly polarized antenna to be measured In the state of the left-handed signal in the receiving mode, or when the phase difference between the second signal and the third signal is 270°, the circle to be measured is obtained by analyzing the signal received by the circularly polarized antenna to be measured The right-hand signal state of the polarized antenna in receive mode. 6. The test system of claim 1, wherein the circularly polarized antenna test system further comprises: a second rotating device for carrying the dual linearly polarized antenna, the second rotating device can drive the first linearly polarized antenna and the second linearly polarized antenna to rotate around a predetermined center in a predetermined plane; The processor is connected to the second rotating device and used to control the working state of the second rotating device. 7. a circularly polarized antenna emission calibration test method, applied to the circularly polarized antenna test system as claimed in any one of claims 1-6, is characterized in that, comprising: After the circularly polarized antenna to be measured is at a zero-degree position where one of its polarization direction lines is coincident with the reference line, send a preset signal through the circularly polarized antenna to be measured; The preset signal is received by the first linearly polarized antenna, and the zero-degree first transmit amplitude and phase parameters of the received signal corresponding to the preset signal are obtained through analysis by the second vector network analysis module; The second linearly polarized antenna receives the preset signal, and the third vector network analysis module analyzes and obtains a zero-degree second transmission amplitude and phase parameter of the received signal corresponding to the preset signal; Adjust the position of the circularly polarized antenna to be measured so that the circularly polarized antenna to be measured is at a 90-degree position where the polarization direction line is 90° with respect to the reference line, and passes through the circularly polarized antenna to be measured. The polarized antenna continues to send the preset signal; The preset signal is received by the first linearly polarized antenna, and the 90-degree first transmit amplitude and phase parameters of the received signal corresponding to the preset signal are obtained through analysis by the second vector network analysis module; and The second linearly polarized antenna receives the preset signal, and the third vector network analysis module analyzes and obtains a 90-degree second transmission amplitude and phase parameter of the received signal corresponding to the preset signal; Based on the zero-degree first emission amplitude-phase parameters, the zero-degree second emission amplitude-phase parameters, the 90-degree first emission amplitude-phase parameters, and the 90-degree second emission amplitude-phase parameters, the circle to be measured is determined The amplitude and phase difference parameters corresponding to two mutually perpendicular polarized links in the transmit mode of the polarized antenna. 8. a circularly polarized antenna receives a calibration test method, is applied to the circularly polarized antenna test system as claimed in any one of claims 1-6, is characterized in that, comprises: After the circularly polarized antenna to be measured is at a zero-degree position where one of its polarization direction lines is coincident with the reference line, a predetermined signal is sent through the first linearly polarized antenna within a first time range, and a predetermined signal is sent through the The circularly polarized antenna receives the predetermined signal, and the first vector network analysis module analyzes and obtains a zero-degree first received amplitude and phase parameter of the received signal corresponding to the predetermined signal; The second linearly polarized antenna sends out the predetermined signal, receives the predetermined signal through the circularly polarized antenna to be measured, and obtains the zero-degree first signal corresponding to the predetermined signal through the analysis of the first vector network analysis module. 2. Receiving amplitude and phase parameters; wherein, the first time range and the second time range do not overlap; The position of the circularly polarized antenna to be measured is adjusted, so that the polarization direction line is at a 90-degree position of 90° relative to the reference line, and the antenna is sent out through the first linearly polarized antenna within a third time range. a predetermined signal, the predetermined signal is received by the circularly polarized antenna to be measured, and the 90-degree first received amplitude and phase parameters of the received signal corresponding to the predetermined signal are obtained through analysis by the first vector network analysis module; In the fourth time range, the predetermined signal is sent out through the second linearly polarized antenna, the predetermined signal is received through the circularly polarized antenna to be measured, and the predetermined signal is obtained through analysis by the first vector network analysis module. The 90-degree second received amplitude-phase parameter of the received signal corresponding to the signal; wherein, the third time range and the fourth time range do not overlap; Based on the zero-degree first receiving amplitude-phase parameter, the zero-degree second receiving amplitude-phase parameter, the 90-degree first receiving amplitude-phase parameter, and the 90-degree second receiving amplitude-phase parameter, the to-be-measured parameter is determined. The corresponding amplitude and phase difference parameters of the circularly polarized antenna on the two vertically polarized links in the receive mode. 9. a circularly polarized antenna transmission signal test method, is applied to the circularly polarized antenna test system as described in any claim of claim 1-6, is characterized in that, comprises: Control the circularly polarized antenna to be measured to send out the first signal through the first vector network analysis module; The first signal is received by the first linearly polarized antenna, and the first amplitude and phase data corresponding to the received signal are obtained through analysis by the second vector network analysis module; and received by the second linearly polarized antenna The first signal is analyzed by the third vector network analysis module to obtain second amplitude and phase data corresponding to the received signal; Based on the amplitude and phase difference parameters corresponding to two mutually perpendicular polarized links of the circularly polarized antenna to be tested in the transmit mode, the first amplitude and phase data, and the second amplitude and phase data, the to-be-measured phase is obtained. Measure the left-handed signal state and right-handed signal state of the circularly polarized antenna in the transmit mode. 10. A method for testing a circularly polarized antenna received signal, applied to the circularly polarized antenna test system as claimed in any one of claims 1-6, characterized in that, comprising: The first linearly polarized antenna is controlled to be in the state of transmitting the second signal by the second vector network analysis module, and at the same time, the second linearly polarized antenna is controlled by the third vector network analysis module to be in the state of transmitting the third signal; wherein , the phase difference between the second signal and the third signal is 90° or 270°; The circularly polarized antenna to be measured is controlled to be in a receiving state by the first vector network analysis module, and when the phase difference between the second signal and the third signal is 90°, based on the circularly polarized antenna to be measured Analyze the signal received by the polarization antenna to obtain the left-handed signal state of the circularly polarized antenna to be tested in the receiving mode, or when the phase difference between the second signal and the third signal is 270°, based on the The signal received by the measuring circularly polarized antenna is analyzed to obtain the right-handed signal state of the said circularly polarized antenna to be measured in the receiving mode. 11. A computer device, characterized in that the device comprises a processing device configured to implement the steps of the method according to any one of claims 7-10 when executing a computer program stored in a memory. 12. A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the method according to any one of claims 7-10 are implemented.

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