An efficient passive three-dimensional antenna testing method and system

Abstract

The present invention discloses an efficient passive three-dimensional antenna testing method and system, which comprises the following steps: placing the object under test on a turntable, selecting a sweep test mode or a sample test mode according to the test requirements; in the sweep test mode, customizing the Phi angle, Theta angle and parameters of a single frequency band of the turntable, starting the test after the parameters are set, and realizing a real-time scanning test of the directional pattern of the object under test at a single frequency point; in the sample test mode, customizing the Phi angle, Theta angle and parameters of several frequency bands of the turntable, starting the test after the parameters are set, and realizing simultaneous testing of the object under test at several different frequency bands. The present invention can test the object under test at a single frequency band or multiple frequency bands, greatly improving the test efficiency, saving the space for the operation of the entire system, and improving the stability and efficiency of the test.

Description

Technical Field

[0001] The present invention relates to the field of microwave measurement, and in particular to an efficient passive three-dimensional antenna testing method and system. Background Art

[0002] The development of wireless communication technology is accompanied by the existence of various wireless transmissions on mobile terminals, such as GSM, TD-SCDMA, WCDMA, TD-LTE, LTE FDD and the current 5G NR, WIFI, BT, GPS and other wireless communication network standards. Each wireless communication system operates on multiple wireless communication frequency bands such as 600MHz~960MHz, 1700MHz~2700MHz, 3300MHz~3800MHz, 4400MHz~5000MHz. With the arrival of 5G and the future development of 6G mobile communication technology, the wireless network application environment will become more complex. An operator will have multiple standards and multiple frequency bands. There will be more and more cases where multiple systems, multiple networks and full frequency bands coexist in one coverage area. However, the existing antenna test system can only test a single frequency band in the wireless communication system, and cannot test multiple frequency bands at the same time, resulting in a waste of test resources and reduced test efficiency.

[0003] The above shortcomings need to be improved. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides an efficient passive three-dimensional antenna testing method and system.

[0005] The technical solution of the present invention is as follows:

[0006] An efficient passive three-dimensional antenna testing method, characterized by comprising the following steps:

[0007] Step S1: Place the object to be tested on the turntable and select the sweep test mode or the sample test mode according to the test requirements;

[0008] Step S2: in the sweep test mode, the Phi angle, Theta angle and parameters of a single frequency band of the turntable are customized, and the test is started after the parameters are set to implement a real-time scanning test of the directional pattern of the object under test at a single frequency point;

[0009] Step S3: In the sample test mode, the Phi angle, Theta angle and several frequency band parameters of the turntable are customized, and the test is started after the parameters are set to test the object under test at several different frequency bands at the same time.

[0010] The present invention according to the above scheme is characterized in that the sample test mode includes a segment mode and a list mode;

[0011] In the segment mode, the Phi angle, Theta angle and several frequency parameters of the turntable are customized, and the test is started after the parameters are set, so as to test the object under test at several different frequency bands at the same time;

[0012] In the list mode, the Phi angle, Theta angle and several frequency band parameters of the turntable are customized. After the parameters are set, the test is started to test the object under test at several different frequency points at the same time.

[0013] The present invention according to the above scheme is characterized in that the test result includes the phase and amplitude of the three-dimensional radiation of the object under test.

[0014] The present invention according to the above scheme is characterized in that the object to be measured is a passive antenna.

[0015] The present invention according to the above scheme is characterized in that the object to be measured is an active antenna.

[0016] On the other hand, a passive three-dimensional antenna testing system based on any of the above-mentioned efficient passive three-dimensional antenna testing methods is characterized in that it includes a PC control end, a network analyzer, a radio frequency link, a turntable and a probe antenna, the PC control end is respectively connected to the network analyzer, the radio frequency link and the turntable, the radio frequency link is also respectively connected to the network analyzer, the turntable and the probe antenna, a test object is arranged on the turntable, the test object is wirelessly connected to the probe antenna, and the test object is respectively connected to the PC control end and the turntable by wire.

[0017] Furthermore, the frequency link includes a radio frequency switch, a power amplifier, a power divider, a coupling device and a radio frequency microwave device.

[0018] Furthermore, the probe antenna is a multi-probe array antenna.

[0019] Furthermore, the probe antenna is a single probe antenna.

[0020] According to the present invention of the above scheme, the beneficial effects of the present invention are:

[0021] The present invention can test the object under test in a single frequency band or multiple frequency bands, greatly improving the test efficiency, saving the space for the operation of the entire system, improving the efficiency of the system operation, and improving the stability and efficiency of the test; the passive three-dimensional antenna test system of the present invention can control multiple units through a PC control terminal, and multiple unused signal / data transmission paths are linked together step by step, which can achieve the purpose of efficiently testing passive three-dimensional antennas in multiple frequency bands, saving unnecessary resource occupancy for the entire test system and saving the overall development cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural framework diagram of the present invention;

[0023] Figure 2 is a flow chart of the method of the present invention;

[0024] exist Figure 1 The accompanying drawings are as follows:

[0025] 1. PC control terminal; 2. Network analyzer; 3. RF link; 4. Turntable; 5. Probe antenna; 6. Object under test. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] like Figure 1 As shown, the present invention provides an efficient passive three-dimensional antenna test system, including a PC control terminal 1, a network analyzer 2, a radio frequency link 3, a turntable 4 and a probe antenna 5. The PC control terminal 1 is connected to the network analyzer 2, the radio frequency link 3 and the turntable 4 respectively, and the radio frequency link 3 is also connected to the network analyzer 2, the turntable 4 and the probe antenna 5 respectively. A test object 6 is arranged on the turntable 4, and the test object 6 is wirelessly connected to the probe antenna 5. The test object 6 is wiredly connected to the PC control terminal 1 and the turntable 4. The PC control terminal 1 of the present invention can test the test object 6 through a variety of signal transmission paths:

[0028] The PC control terminal 1 reads the data analyzed by the network analyzer 2, and transmits the test signal to the radio frequency line in the turntable 4 through the radio frequency link 3. The radio frequency line of the turntable 4 is connected to the object under test 6. The turntable 4 rotates 360 degrees in all directions to transmit the test signal. The object under test 6 is tested according to the parameters set by the PC control terminal 1. The PC control terminal 1 reads the data in the network analyzer 2, and the data is processed by the software of the PC control terminal 1 and displayed in a graphical manner.

[0029] The present invention can control multiple units through the PC control terminal 1, and multiple unused signal / data transmission paths are linked together step by step, which can achieve the purpose of efficiently testing passive three-dimensional antennas in multiple frequency bands, saving unnecessary resource occupancy for the entire test system and saving the overall development cost.

[0030] In this embodiment, the radio frequency link includes a radio frequency switch, a power amplifier, a power divider, a coupling device, a radio frequency microwave device, etc., and the present invention does not limit this.

[0031] In this embodiment, the probe antenna 5 may be, but is not limited to, a multi-probe array antenna or a single probe antenna, and the present invention does not impose any limitation on this, and those skilled in the art may select one according to specific test requirements.

[0032] In this embodiment, the object under test 6 may be a passive antenna or an active antenna, and the test system of the present invention is applicable to most antennas on the market.

[0033] like Figure 2 As shown, on the other hand, the present invention provides an efficient passive three-dimensional antenna testing method, comprising the following steps:

[0034] Step S1: Place the object to be tested 6 on the turntable, and select the sweep test mode or the sample test mode on the PC control terminal 1 according to the user's test requirements.

[0035] Step S2: In the sweep test mode, the user can customize the Phi angle, Theta angle and parameters of a single frequency band of the turntable 4. After the parameters are set, the test is started to perform a real-time sweep test on the directional pattern of the object under test 6 at a single frequency point.

[0036] Step S3: In the sample test mode, the user can customize the Phi angle, Theta angle and parameters of several frequency bands of the turntable 4. After the parameters are set, the test is started to test the object 6 at several different frequency bands at the same time, and the test results of different frequency bands are displayed together. For example, a multi-band antenna includes three frequency bands of 800MHz~1000MHz, 2000MHz~3000 MHz and 5000MHz~6000 MHz. In the sample test mode, the three-dimensional radiation performance of the antenna can be tested at the above three frequency bands at the same time, and the test results of multiple frequency bands can be quickly obtained.

[0037] Specifically, the sample test mode includes segment mode and list mode. Users can select segment mode and list mode according to test requirements.

[0038] In segment mode, the user can customize the Phi angle, Theta angle and several frequency parameters of the turntable 4. After the parameters are set, the test is started to test the object 6 at several different frequency bands at the same time, and the test results of different frequency bands are displayed together. In the above mode, the turntable 4 only needs to perform one cycle rotation to complete the three-dimensional radiation performance test of the object 6 at several different frequency bands. There is no need to cycle multiple Phi angles and full-process tests, and the three-dimensional radiation performance data of multiple frequency bands can be quickly obtained, which greatly improves the test efficiency.

[0039] In list mode, the user can customize the Phi angle, Theta angle and several frequency band parameters of the turntable 4. After the parameters are set, the test is started to test the object under test 6 at several different frequency points at the same time. In the above mode, the test is performed according to the customer-defined frequency point and quantity settings, which is more user-friendly and also makes full use of test resources to improve test efficiency.

[0040] In this embodiment, the test results include the phase and amplitude of the three-dimensional radiation of the object 6 under test.

[0041] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

[0042] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An efficient passive three-dimensional antenna testing method, characterized in that: The following steps are involved: Step S1: Place the object to be tested on the turntable and select the sweep test mode or the sample test mode according to the test requirements; Step S2: in the sweep test mode, the Phi angle, Theta angle and parameters of a single frequency band of the turntable are customized, and the test is started after the parameters are set to implement a real-time scanning test of the directional pattern of the object under test at a single frequency point; Step S3: in the sample test mode, the Phi angle, Theta angle and parameters of several frequency bands of the turntable are customized, and the test is started after the parameters are set, so as to test the object under test at several different frequency bands at the same time; The sample test mode includes segment mode and list mode; In the segment mode, the Phi angle, Theta angle and several frequency parameters of the turntable are customized, and the test is started after the parameters are set, so as to test the object under test at several different frequency bands at the same time; In the list mode, the Phi angle, Theta angle and several frequency band parameters of the turntable are customized. After the parameters are set, the test is started to test the object under test at several different frequency points at the same time.

2. The efficient passive three-dimensional antenna testing method according to claim 1, characterized in that: The test results include the phase and amplitude of the three-dimensional radiation of the object under test.

3. The efficient passive three-dimensional antenna testing method according to claim 1, characterized in that: The object to be measured is a passive antenna.

4. The efficient passive three-dimensional antenna testing method according to claim 1, characterized in that: The object to be measured is an active antenna.

5. A passive three-dimensional antenna test system based on the efficient passive three-dimensional antenna test method according to any one of claims 1 to 4, characterized in that: The invention comprises a PC control terminal, a network analyzer, a radio frequency link, a turntable and a probe antenna, wherein the PC control terminal is respectively connected to the network analyzer, the radio frequency link and the turntable, and the radio frequency link is also respectively connected to the network analyzer, the turntable and the probe antenna, and an object to be measured is arranged on the turntable, the object to be measured is wirelessly connected to the probe antenna, and the object to be measured is respectively connected to the PC control terminal and the turntable by wire.

6. The passive three-dimensional antenna testing system according to claim 5, characterized in that: The radio frequency link includes a radio frequency switch, a power amplifier, a power divider, a coupling device and a radio frequency microwave device.

7. The passive three-dimensional antenna testing system according to claim 5, characterized in that: The probe antenna is a multi-probe array antenna.

8. The passive three-dimensional antenna testing system according to claim 5, characterized in that: The probe antenna is a single probe antenna.

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