技术领域technical field
本发明涉及测试技术领域，尤其涉及一种天线阵子的测试方法及测试系统。The invention relates to the technical field of testing, in particular to a testing method and testing system for an antenna element.
背景技术Background technique
随着无线通信行业的不断发展及网络升级，无线通信使用的频率越来越高，需求量越来越多。天线的结构设计、选材、制造方法和组装工艺是天线性能可靠性、稳定性和耐用程度的保障。振子是天线内部最为重要的功能性部件，一般结构设计较为复杂，具有导向和放大电磁波的作用，使天线接收到的电磁信号更强，广泛用于应用端手机、基站、物联网、汽车等硬件载体。With the continuous development of the wireless communication industry and network upgrades, the frequency of wireless communication is getting higher and higher, and the demand is increasing. The structural design, material selection, manufacturing method and assembly process of the antenna are the guarantee of the reliability, stability and durability of the antenna performance. The vibrator is the most important functional part inside the antenna. The general structural design is relatively complicated. It has the function of guiding and amplifying electromagnetic waves, making the electromagnetic signal received by the antenna stronger. It is widely used in hardware such as mobile phones, base stations, Internet of Things, and automobiles. carrier.
天线阵子的驻波比和增益是其重要的两个特性参数，驻波比反映了天线阵子的反射能力，增益反映了天线阵子的转换能力。随着无线通信行业的不断发展及网络升级，通信频率的增加，天线增益的增加，而常规的天线阵子测试系统，采用了网络分析仪进行测试，网络分析测试在增益测试过程中无法满足高动态范围的测试。因此需要一种对天线阵子进行高动态范围测试的方法。The standing wave ratio and gain of the antenna element are two important characteristic parameters. The standing wave ratio reflects the reflection ability of the antenna element, and the gain reflects the conversion ability of the antenna element. With the continuous development of the wireless communication industry and network upgrades, the increase in communication frequency and the increase in antenna gain, while the conventional antenna array test system uses a network analyzer for testing, and the network analysis test cannot meet the high dynamic requirements during the gain test process. range of tests. Therefore, a method for testing an antenna element with a high dynamic range is needed.
发明内容Contents of the invention
本发明的目的在于提供一种天线阵子的测试方法及测试系统，以实现天线阵子的多角度高动态范围测试。The purpose of the present invention is to provide a test method and test system for an antenna element, so as to realize the multi-angle high dynamic range test of the antenna element.
为了达到上述目的，本发明提供了一种天线阵子的测试方法，包括：In order to achieve the above object, the present invention provides a method for testing antenna elements, including:
步骤S1：天线阵子从初始角度转动一设定值；Step S1: The antenna element is rotated by a set value from the initial angle;
步骤S2：信号发生器输出设定功率值的第一电信号给所述天线阵子，所述天线阵子将所述第一电信号转换成电磁信号传输出去；Step S2: The signal generator outputs a first electrical signal with a set power value to the antenna element, and the antenna element converts the first electrical signal into an electromagnetic signal and transmits it;
步骤S3：接收天线接收所述电磁信号且将所述电磁信号转换成第二电信号给频谱分析仪，所述频谱分析仪获取所述第二电信号的功率值；Step S3: the receiving antenna receives the electromagnetic signal and converts the electromagnetic signal into a second electrical signal to a spectrum analyzer, and the spectrum analyzer acquires a power value of the second electrical signal;
步骤S4：判断所述第二电信号的功率值是否在所述频谱分析仪的功率阈值范围内，若是，则保存所述第二电信号的功率值并返回步骤S1，若否，调整所述设定功率值并返回步骤S2。Step S4: Determine whether the power value of the second electrical signal is within the power threshold range of the spectrum analyzer, if yes, save the power value of the second electrical signal and return to step S1, if not, adjust the Set the power value and return to step S2.
可选的，当所述天线阵子处于所述初始角度时，所述信号发生器输出初始功率值，并保存所述频谱分析仪测得的功率值。Optionally, when the antenna element is at the initial angle, the signal generator outputs an initial power value, and saves the power value measured by the spectrum analyzer.
可选的，所述功率阈值范围在所述频谱分析仪的功率动态范围内。Optionally, the power threshold range is within the power dynamic range of the spectrum analyzer.
可选的，在步骤S4中，所述频谱分析仪的功率阈值范围包括最大功率阈值和最小功率阈值，当所述第二电信号的功率值小于等于所述最小功率阈值时，增加所述设定功率值；当所述第二电信号的功率值大于等于所述最大功率阈值时，减小所述设定功率值。Optionally, in step S4, the power threshold range of the spectrum analyzer includes a maximum power threshold and a minimum power threshold, and when the power value of the second electrical signal is less than or equal to the minimum power threshold, increase the set A fixed power value; when the power value of the second electrical signal is greater than or equal to the maximum power threshold, reduce the set power value.
可选的，所述最大功率阈值小于所述功率动态范围的最大测量功率值，所述最小功率阈值大于所述功率动态范围的最小测量功率值。Optionally, the maximum power threshold is smaller than the maximum measured power value of the power dynamic range, and the minimum power threshold is larger than the minimum measured power value of the power dynamic range.
可选的，所述第二电信号的功率值与所述设定功率值的比值为所述天线阵子的增益。Optionally, the ratio of the power value of the second electrical signal to the set power value is the gain of the antenna element.
可选的，所述天线阵子包括非金属阵子、贴片阵子和半波阵子。Optionally, the antenna elements include non-metal elements, patch elements and half-wave elements.
可选的，在微波暗室环境中执行所述天线阵子的测试方法。Optionally, the method for testing the antenna element is performed in a microwave darkroom environment.
一种天线阵子的测试系统，用于实现上述的天线阵子的测试方法，包括：信号发生器、天线阵子、接收天线、频谱分析仪和测试机，其中，所述测试机的总线接口端分别与所述信号发生器的控制端和所述频谱分析仪的输出端连接，所述信号发生器的输出端与所述天线阵子的输入端连接，所述接收天线的输出端与所述频谱分析仪的输入端连接。A test system for an antenna element, used to realize the above-mentioned test method for an antenna element, comprising: a signal generator, an antenna element, a receiving antenna, a spectrum analyzer, and a testing machine, wherein the bus interface ends of the testing machine are respectively connected to The control terminal of the signal generator is connected to the output terminal of the spectrum analyzer, the output terminal of the signal generator is connected to the input terminal of the antenna element, and the output terminal of the receiving antenna is connected to the spectrum analyzer input connection.
可选的，还包括转台和天线架，通过所述天线架将所述天线阵子设置于所述转台上。Optionally, a turntable and an antenna stand are also included, and the antenna element is arranged on the turntable through the antenna stand.
在本发明提供的一种天线阵子的测试方法及测试系统中，在步骤S1中，首先天线阵子从初始角度转动一设定值；在步骤S2中信号发生器输出设定功率值的第一电信号给天线阵子，天线阵子将第一电信号转换成电磁信号传输出去；然后在步骤S3中，接收天线接收电磁信号且将电磁信号转换成第二电信号给频谱分析仪，频谱分析仪获取第二电信号的功率值；进而，进行步骤S4判断第二电信号的功率值是否在频谱分析仪的功率阈值范围内，若是，则保存第二电信号的功率值并返回步骤S1，若否，调整设定功率值并返回步骤S2，调整设定功率值后，以使第二电信号的功率值在频谱分析仪的功率阈值范围内，形成闭环控制，防止第二电信号的功率值超出频谱分析仪的功率阈值范围，以实现天线阵子的多角度高动态范围的测试。In the test method and test system of an antenna element provided by the present invention, in step S1, first the antenna element is rotated by a set value from the initial angle; in step S2, the signal generator outputs the first electric value of the set power value The signal is sent to the antenna element, and the antenna element converts the first electrical signal into an electromagnetic signal and transmits it; then in step S3, the receiving antenna receives the electromagnetic signal and converts the electromagnetic signal into a second electrical signal to the spectrum analyzer, and the spectrum analyzer obtains the second electrical signal The power value of the second electric signal; then, proceed to step S4 to judge whether the power value of the second electric signal is within the power threshold range of the spectrum analyzer, if so, save the power value of the second electric signal and return to step S1, if not, Adjust the set power value and return to step S2. After adjusting the set power value, the power value of the second electrical signal is within the power threshold range of the spectrum analyzer to form a closed-loop control to prevent the power value of the second electrical signal from exceeding the frequency spectrum. The power threshold range of the analyzer is used to realize the multi-angle high dynamic range test of the antenna element.
附图说明Description of drawings
图1为本发明一实施例提供的天线阵子的测试方法的流程图；Fig. 1 is the flow chart of the test method of the antenna element provided by an embodiment of the present invention;
图2为本发明一实施例提供的天线阵子的测试系统的框图；Fig. 2 is the block diagram of the test system of the antenna element provided by an embodiment of the present invention;
其中，附图标记为：Wherein, reference sign is:
10-信号发生器；20-天线阵子；30-接收天线；40-频谱分析仪；50-测试机。10-signal generator; 20-antenna element; 30-receiving antenna; 40-spectrum analyzer; 50-testing machine.
具体实施方式Detailed ways
下面将结合示意图对本发明的具体实施方式进行更详细的描述。根据下列描述，本发明的优点和特征将更清楚。需说明的是，附图均采用非常简化的形式且均使用非精准的比例，仅用以方便、明晰地辅助说明本发明实施例的目的。The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. The advantages and features of the present invention will be more apparent from the following description. It should be noted that all the drawings are in very simplified form and use inaccurate scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.
图1为本实施例提供的天线阵子的测试方法的流程图，本实施例提供了一种天线阵子的测试方法，用于实现对天线阵子进行多角度高动态范围的测试，请参考图1，其中包括：Fig. 1 is the flow chart of the test method of the antenna element provided in this embodiment, the present embodiment provides a kind of test method of the antenna element, is used to realize the test that the multi-angle high dynamic range is carried out to the antenna element, please refer to Fig. 1, These include:
步骤S1：天线阵子从初始角度转动一设定值；Step S1: The antenna element is rotated by a set value from the initial angle;
步骤S2：信号发生器输出设定功率值的第一电信号给天线阵子，天线阵子将第一电信号转换成电磁信号传输出去；Step S2: The signal generator outputs the first electrical signal with a set power value to the antenna element, and the antenna element converts the first electrical signal into an electromagnetic signal and transmits it;
步骤S3：接收天线接收电磁信号且将电磁信号转换成第二电信号给频谱分析仪，频谱分析仪获取第二电信号的功率值；Step S3: The receiving antenna receives the electromagnetic signal and converts the electromagnetic signal into a second electrical signal to the spectrum analyzer, and the spectrum analyzer acquires the power value of the second electrical signal;
步骤S4：判断第二电信号的功率值是否在频谱分析仪的功率阈值范围内，若是，则保存第二电信号的功率值并返回步骤S1，若否，调整设定功率值并返回步骤S2。Step S4: Determine whether the power value of the second electrical signal is within the power threshold range of the spectrum analyzer, if yes, save the power value of the second electrical signal and return to step S1, if not, adjust the set power value and return to step S2 .
下面对本实施例提供的天线阵子的测试方法进行详细的阐述。The test method of the antenna element provided by this embodiment will be described in detail below.
执行步骤S1：天线阵子从初始角度转动一设定值。Step S1 is executed: the antenna element is rotated by a set value from the initial angle.
具体的，天线阵子是天线上的元器件，具有导向和放大电磁波的作用，在本实施例中，天线阵子可包括非金属阵子、贴片阵子和半波阵子，其中为5G网络就采用的非金属天线阵子。本实施例中，在微波暗室环境中执行天线阵子的测试方法，微波暗室环境可以屏蔽外界干扰，能够更准确得测得天线阵子的参数值。Specifically, the antenna element is a component on the antenna, which has the function of guiding and amplifying electromagnetic waves. In this embodiment, the antenna element can include a non-metal element, a patch element and a half-wave element. Among them, the non-metal element used in the 5G network Metal antenna elements. In this embodiment, the test method of the antenna element is implemented in a microwave anechoic room environment, which can shield external interference, and can measure the parameter values of the antenna element more accurately.
调整天线阵子的初始角度，使天线阵子从初始角度转动一设定值，设定值不作具体限制，可按照实际情况设定角度，如5°、10°、15°等。Adjust the initial angle of the antenna element to rotate the antenna element by a set value from the initial angle. There is no specific limit to the set value, and the angle can be set according to the actual situation, such as 5°, 10°, 15°, etc.
执行步骤S2：信号发生器输出设定功率值的第一电信号给天线阵子，天线阵子将第一电信号转换成电磁信号传输出去。Step S2 is executed: the signal generator outputs the first electric signal with a set power value to the antenna element, and the antenna element converts the first electric signal into an electromagnetic signal and transmits it.
具体的，信号发生器是一种能提供各种频率、波形和输出电平电信号的设备，可以用作测试的信号源或激励源。信号发生器输出设定功率值的第一电信号给天线阵子，天线阵子能够将电场转换为磁场从而形成为电磁波，即天线阵子将第一电信号转换成电磁信号传输出去。Specifically, a signal generator is a device that can provide electrical signals of various frequencies, waveforms and output levels, and can be used as a signal source or an excitation source for testing. The signal generator outputs the first electrical signal with a set power value to the antenna element, and the antenna element can convert the electric field into a magnetic field to form an electromagnetic wave, that is, the antenna element converts the first electrical signal into an electromagnetic signal and transmits it.
执行步骤S3：接收天线接收电磁信号且将电磁信号转换成第二电信号给频谱分析仪，频谱分析仪获取第二电信号的功率值。Step S3 is executed: the receiving antenna receives the electromagnetic signal and converts the electromagnetic signal into a second electrical signal to the spectrum analyzer, and the spectrum analyzer acquires the power value of the second electrical signal.
具体的，接收天线接收到天线阵子传输过来的电磁信号，接收天线能够将磁场转换为电场，即将天线阵子传输过来的电磁信号转换为第二电信号。将第二电信号传输给频谱分析仪，频谱分析仪是研究电信号频谱结构的仪器，能分析1赫以下的甚低频到亚毫米波段的全部无线电频段的电信号，频谱分析仪内部若采用数字电路和微处理器，具有存储和运算功能；配置标准接口，能够构成自动测试系统。频谱分析仪接收第二电信号，并获取第二电信号的功率值，还可以获取第二电信号的电平值。Specifically, the receiving antenna receives the electromagnetic signal transmitted by the antenna element, and the receiving antenna can convert the magnetic field into an electric field, that is, convert the electromagnetic signal transmitted by the antenna element into a second electrical signal. The second electrical signal is transmitted to the spectrum analyzer. The spectrum analyzer is an instrument for studying the spectrum structure of the electrical signal. It can analyze the electrical signals of all radio frequency bands from the very low frequency below 1 Hz to the submillimeter wave band. If the spectrum analyzer uses digital The circuit and microprocessor have storage and calculation functions; equipped with standard interfaces, they can form an automatic test system. The spectrum analyzer receives the second electrical signal, and acquires the power value of the second electrical signal, and may also acquire the level value of the second electrical signal.
步骤S4：判断第二电信号的功率值是否在频谱分析仪的功率阈值范围内，若是，则保存第二电信号的功率值并返回步骤S1，若否，调整设定功率值并返回步骤S2。Step S4: Determine whether the power value of the second electrical signal is within the power threshold range of the spectrum analyzer, if yes, save the power value of the second electrical signal and return to step S1, if not, adjust the set power value and return to step S2 .
具体的，获得第二电信号的功率值和电平值之后，通过第二电信号的功率值和电平值能够得到天线阵子的驻波比和增益。通过第二电信号的功率值与设定功率值的比值得到天线阵子的增益，通过第二电信号的电平值的高低电平值得到天线阵子的驻波比，本实施例中主要针对天线阵子的增益进行测试。Specifically, after the power value and level value of the second electrical signal are obtained, the standing wave ratio and gain of the antenna element can be obtained through the power value and level value of the second electrical signal. The gain of the antenna element is obtained by the ratio of the power value of the second electric signal to the set power value, and the standing wave ratio of the antenna element is obtained by the level value of the second electric signal. Gain for a while to test.
频谱分析仪具有固定的功率动态范围，即频谱分析仪的量程，超过量程则不能进行测试，当第二电信号的功率值超过频谱分析仪的功率动态范围，频谱分析仪则不能测试出第二电信号的功率值，同样不能计算得到天线阵子的增益。而由于需要对天线阵子进行多角度测试获得不同角度下天线阵子的增益，当天线阵子的角度发生改变，接收天线接收到的电磁信号转换后的第二电信号的功率值会变化；若信号发生器输出的功率值固定，当天线阵子转动到某个角度，接收天线转换后的第二电信号的功率值会变得很小或很大，导致接收天线转换后的第二电信号的功率值超出频谱分析仪的功率动态范围，则频谱分析仪无法测得接收天线转换后的第二电信号的功率值，无法对天线阵子进行多角度测试获得不同角度下天线阵子的增益。The spectrum analyzer has a fixed power dynamic range, which is the range of the spectrum analyzer. If the range exceeds the range, the test cannot be performed. When the power value of the second electrical signal exceeds the power dynamic range of the spectrum analyzer, the spectrum analyzer cannot test the second signal. The power value of the electrical signal also cannot calculate the gain of the antenna element. However, due to the need to perform multi-angle tests on the antenna element to obtain the gain of the antenna element at different angles, when the angle of the antenna element changes, the power value of the second electrical signal after the conversion of the electromagnetic signal received by the receiving antenna will change; The output power value of the transmitter is fixed. When the antenna element rotates to a certain angle, the power value of the second electrical signal converted by the receiving antenna will become very small or large, resulting in the power value of the second electrical signal converted by the receiving antenna. If the power dynamic range of the spectrum analyzer is exceeded, the spectrum analyzer cannot measure the power value of the second electrical signal converted by the receiving antenna, and cannot conduct multi-angle tests on the antenna element to obtain the gain of the antenna element at different angles.
因此，通过在频谱分析仪中设定功率阈值范围，频谱分析仪的功率阈值范围在频谱分析仪的功率动态范围内。功率阈值范围包括最大功率阈值和最小功率阈值，最大功率阈值需小于功率动态范围的最大测量功率值，最小功率阈值需大于功率动态范围的最小测量功率值，最大功率阈值和最小功率阈值根据实际情况设定，比如天线阵子转动一设定角度后，设定的最大功率阈值与最大测量功率值的差值至少大于频谱分析仪在相邻两次天线阵子转动一设定角度后测得的第二电信号的功率值的差值，防止下一次天线阵子转动一设定角度后，超出频谱分析仪的功率动态范围而不能被测量到。Therefore, by setting the power threshold range in the spectrum analyzer, the power threshold range of the spectrum analyzer is within the power dynamic range of the spectrum analyzer. The power threshold range includes the maximum power threshold and the minimum power threshold. The maximum power threshold must be smaller than the maximum measured power value of the power dynamic range, and the minimum power threshold must be greater than the minimum measured power value of the power dynamic range. The maximum power threshold and minimum power threshold are based on the actual situation Setting, for example, after the antenna element rotates a set angle, the difference between the set maximum power threshold and the maximum measured power value is at least greater than the second value measured by the spectrum analyzer after two adjacent antenna element rotations by a set angle. The difference in the power value of the electrical signal prevents the next time the antenna element rotates a set angle, which exceeds the power dynamic range of the spectrum analyzer and cannot be measured.
判断第二电信号的功率值是否在频谱分析仪的功率阈值范围内，当第二电信号的功率值在频谱分析仪的功率阈值范围内时，保存第二电信号的功率值并返回步骤S1，调整天线阵子的角度，进行下一个角度的测试。当第二电信号的功率值不在频谱分析仪的功率阈值范围内时，调整设定功率值并返回步骤S2，再进行测试形成闭环控制。在本实施例中，天线阵子每次从初始角度转动一设定值，直至天线阵子完成360°转动，可为天线阵子一个周期的测试，也可进行720°转动测试等。在本实施例中，保存第二电信号的功率值可以保存在计算机可读存储介质中或其它电子设备中，然后求得信号发生器输出的设定功率值与保存的第二电信号的功率值的比值得到天线阵子的增益，可通过计算机计算获得天线阵子的增益。Determine whether the power value of the second electrical signal is within the power threshold range of the spectrum analyzer, and when the power value of the second electrical signal is within the power threshold range of the spectrum analyzer, save the power value of the second electrical signal and return to step S1 , adjust the angle of the antenna element, and proceed to the next angle test. When the power value of the second electrical signal is not within the power threshold range of the spectrum analyzer, adjust the set power value and return to step S2, and then conduct a test to form a closed-loop control. In this embodiment, the antenna element rotates by a set value from the initial angle each time until the antenna element completes a 360° rotation, which can be a cycle test of the antenna element, or a 720° rotation test, etc. In this embodiment, the stored power value of the second electrical signal can be stored in a computer-readable storage medium or other electronic devices, and then the set power value output by the signal generator and the stored power of the second electrical signal can be obtained. The ratio of the values is the gain of the antenna element, which can be calculated by computer to obtain the gain of the antenna element.
判断第二电信号的功率值是否在频谱分析仪的功率阈值范围内，具体是比较第二电信号的功率值与最大功率阈值和最小功率阈值的大小，当第二电信号的功率值小于等于最小功率阈值时，增加设定功率值；当第二电信号的功率值大于等于最大功率阈值时，减小设定功率值。闭环控制使无论天线阵子转动到任一角度，只要信号发生器的输出功率动态随之改变，都能使频谱分析仪能够准确测试到第二信号的功率值，不会超出频谱分析仪的功率动态范围，就能够实现对天线阵子进行多角度高动态测试。在本实施例中，信号发生器增加功率或信号发生器减小功率可以按照设定的步长逐步增大或逐步减小，具体设定值不作限制，示实际情况而定。Judging whether the power value of the second electrical signal is within the power threshold range of the spectrum analyzer, specifically comparing the power value of the second electrical signal with the maximum power threshold and the minimum power threshold, when the power value of the second electrical signal is less than or equal to When the minimum power threshold is reached, the set power value is increased; when the power value of the second electrical signal is greater than or equal to the maximum power threshold, the set power value is decreased. Closed-loop control makes it possible for the spectrum analyzer to accurately test the power value of the second signal as long as the output power of the signal generator changes accordingly no matter the antenna element rotates to any angle, and will not exceed the power dynamics of the spectrum analyzer range, it is possible to perform multi-angle high dynamic testing on antenna elements. In this embodiment, the increase in power of the signal generator or the decrease in power of the signal generator can be gradually increased or decreased according to the set step size, and the specific set value is not limited and depends on the actual situation.
当天线阵子处于初始角度时，信号发生器输出初始功率值的电信号给天线阵子，天线阵子将初始功率值的电信号转换成电磁信号传输出去，经过接收天线的转换，将电磁信号转换为电信号，频谱分析仪测得此电信号的功率值，保存频谱分析仪测得的功率值，通过初始功率值和频谱分析仪测得的功率值得到天线阵子初始角度的增益；当在初始角度时，频谱分析仪测得的功率值是在频谱分析仪的功率阈值范围内。When the antenna element is at the initial angle, the signal generator outputs an electrical signal of the initial power value to the antenna element, and the antenna element converts the electrical signal of the initial power value into an electromagnetic signal and transmits it. After conversion by the receiving antenna, the electromagnetic signal is converted into an electrical signal. signal, the spectrum analyzer measures the power value of the electrical signal, saves the power value measured by the spectrum analyzer, and obtains the gain of the initial angle of the antenna element through the initial power value and the power value measured by the spectrum analyzer; when at the initial angle , the power value measured by the spectrum analyzer is within the power threshold range of the spectrum analyzer.
图2为本实施例提供的天线阵子的测试系统的框图，请参考图2，本实施例还提供了一种天线阵子的测试系统，用于实现上述的天线阵子的测试方法，包括：信号发生器10、天线阵子20、接收天线30、频谱分析仪40和测试机50，其中，测试机50的总线接口端分别与信号发生器10的控制端和频谱分析仪40的输出端连接，信号发生器10的输出端与天线阵子20的输入端连接，接收天线30的输出端与频谱分析仪40的输入端连接。另外，还包括转台和天线架，通过天线架将天线阵子20设置于转台上。Fig. 2 is the block diagram of the test system of the antenna element provided by the present embodiment, please refer to Fig. 2, the present embodiment also provides a kind of test system of the antenna element, for realizing the test method of above-mentioned antenna element, comprising: signal generation device 10, antenna element 20, receiving antenna 30, spectrum analyzer 40 and testing machine 50, wherein, the bus interface end of testing machine 50 is connected with the control terminal of signal generator 10 and the output end of spectrum analyzer 40 respectively, and the signal generation The output end of the device 10 is connected to the input end of the antenna element 20, and the output end of the receiving antenna 30 is connected to the input end of the spectrum analyzer 40. In addition, it also includes a turntable and an antenna stand, and the antenna element 20 is arranged on the turntable through the antenna stand.
测试机50具有存储、计算、输出输入等功能，如计算机，通过测试机50控制信号发生器10的输出功率，信号发生器10输出设定功率值的第一电信号传输给天线阵子20，天线阵子20将第一电信号转换成电磁信号传输出去，接收天线30接收到电磁信号并转换为第二电信号，接收天线30将第二电信号传输给频谱分析仪40，频谱分析仪40测得第二电信号的功率值，判断第二电信号的功率值是否在频谱分析仪40的功率阈值范围内，若是，则测试机50保存第二电信号的功率值并计算保存当前角度天线阵子的增益；若否，则测试机50发送中断信号和功率控制信号给信号发生器10以调节信号发生器10的输出功率值，以使第二电信号的功率值在频谱分析仪40的功率阈值范围内，然后通过转台去改变天线阵子20的角度，以实现天线阵子20的多角度高动态范围的测试。The testing machine 50 has functions such as storage, calculation, output and input, such as a computer, the output power of the signal generator 10 is controlled by the testing machine 50, and the first electric signal of the signal generator 10 output setting power value is transmitted to the antenna element 20, and the antenna The sensor 20 converts the first electrical signal into an electromagnetic signal and transmits it. The receiving antenna 30 receives the electromagnetic signal and converts it into a second electrical signal. The receiving antenna 30 transmits the second electrical signal to the spectrum analyzer 40. The spectrum analyzer 40 measures The power value of the second electric signal determines whether the power value of the second electric signal is within the power threshold range of the spectrum analyzer 40, if so, then the testing machine 50 saves the power value of the second electric signal and calculates and saves the current angle of the antenna element. Gain; if not, then the testing machine 50 sends an interrupt signal and a power control signal to the signal generator 10 to adjust the output power value of the signal generator 10, so that the power value of the second electrical signal is within the power threshold range of the spectrum analyzer 40 Then, the angle of the antenna element 20 is changed through the turntable, so as to realize the multi-angle high dynamic range test of the antenna element 20.
综上，在本发明提供的一种天线阵子的测试方法及测试系统中，在步骤S1中，首先天线阵子从初始角度转动一设定值；在步骤S2中信号发生器输出设定功率值的第一电信号给天线阵子，天线阵子将第一电信号转换成电磁信号传输出去；然后在步骤S3中，接收天线接收电磁信号且将电磁信号转换成第二电信号给频谱分析仪，频谱分析仪获取第二电信号的功率值；进而，进行步骤S4判断第二电信号的功率值是否在频谱分析仪的功率阈值范围内，若是，则保存第二电信号的功率值并返回步骤S1，若否，调整设定功率值并返回步骤S2，调整设定功率值后，以使第二电信号的功率值在频谱分析仪的功率阈值范围内，形成闭环控制，防止第二电信号的功率值超出频谱分析仪的功率阈值范围，以实现天线阵子的多角度高动态范围的测试。To sum up, in the test method and test system of an antenna element provided by the present invention, in step S1, first the antenna element is rotated by a set value from the initial angle; in step S2, the signal generator outputs the set power value The first electrical signal is sent to the antenna element, and the antenna element converts the first electrical signal into an electromagnetic signal and transmits it; then in step S3, the receiving antenna receives the electromagnetic signal and converts the electromagnetic signal into a second electrical signal for the spectrum analyzer, and performs spectrum analysis The instrument obtains the power value of the second electric signal; then, proceed to step S4 to judge whether the power value of the second electric signal is within the power threshold range of the spectrum analyzer, if so, save the power value of the second electric signal and return to step S1, If not, adjust the set power value and return to step S2, after adjusting the set power value, so that the power value of the second electrical signal is within the power threshold range of the spectrum analyzer, forming a closed-loop control to prevent the power of the second electrical signal The value exceeds the power threshold range of the spectrum analyzer to realize the multi-angle high dynamic range test of the antenna element.
上述仅为本发明的优选实施例而已，并不对本发明起到任何限制作用。任何所属技术领域的技术人员，在不脱离本发明的技术方案的范围内，对本发明揭露的技术方案和技术内容做任何形式的等同替换或修改等变动，均属未脱离本发明的技术方案的内容，仍属于本发明的保护范围之内。The foregoing are only preferred embodiments of the present invention, and do not limit the present invention in any way. Any person skilled in the technical field, within the scope of the technical solution of the present invention, makes any form of equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which does not depart from the technical solution of the present invention. The content still belongs to the protection scope of the present invention.
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