Simple antenna array amplitude and phase testing device

Abstract

The utility model provides a simple antenna array amplitude and phase testing device, which is used for testing an antenna unit and comprises a tool support used for bearing the antenna unit and a testing box. A slot with a downward opening is formed in the middle of the bottom of the test box, a test antenna is arranged at the top of the test box, the test antenna corresponds to the antenna unit in position, the slot is formed in the outer side of the antenna unit and used for testing of the test antenna, and the test box can move on the tool support and has electromagnetic wave shielding performance; and the vector network analyzer is respectively connected with the test antenna and the antenna unit through a first cable and a second cable.

Description

Technical Field

[0001] The utility model relates to the technical field of radar antenna testing, in particular to a simple antenna array amplitude-phase testing device. Background Art

[0002] An antenna is a device for transmitting and receiving electromagnetic energy. Radar antennas generally have strong directivity, high gain, and narrow beam width. Usually, multiple antennas need to work together to form an array antenna to jointly achieve a predetermined index. Several antennas are arranged and excited in a certain way, and the interference principle and superposition principle of electromagnetic waves are used to generate special radiation characteristics. This structure of multiple radiators is called an antenna array. The multi-antenna arranged in an array can be regarded as an independent antenna, called an array antenna, and the single radiator that constitutes the array antenna is called a unit.

[0003] When producing array antennas, it is usually necessary to use a test system for amplitude-phase testing. The current main testing device is in a microwave anechoic chamber. The test antenna is installed on a moving part, and the moving part is driven by a motor to move on the guide rail to perform amplitude-phase sampling at different positions. However, this method has a complex structure and occupies a large space.

[0004] To solve the above technical problems, the company applied for a utility model patent, an improved antenna element amplitude-phase rapid testing device, which makes the amplitude-phase testing device not limited to the microwave anechoic chamber. However, it still has certain deficiencies. In the above utility model, through the cooperation of the guide rail, the scanning bracket, the mounting bracket, and the motor part, the rapid testing of the antenna unit is realized. Setting the guide rail on one side of the tooling bracket requires a large area, and the cooperation of the scanning bracket, the mounting bracket, and the motor part is also relatively cumbersome and inconvenient to use.

[0005] Therefore, the current urgent technical problem to be solved is to reduce the overall occupied space of the device and improve the convenience of use while making the amplitude-phase testing device not limited to the microwave anechoic chamber. Summary of the Utility Model

[0006] The present utility model is made to solve the above problems, and its purpose is to provide a simple antenna array amplitude-phase testing device, which occupies less space and is simple to use and operate.

[0007] The present utility model provides a simple antenna array amplitude-phase testing device, having the following characteristics, including:

[0008] A tooling bracket for carrying an antenna unit and a test box;

[0009] Test box, a slot with a downward opening is provided at the middle position of the bottom of the test box, a test antenna is provided at the top of the test box, the test antenna corresponds to the position of the antenna unit, the slot is placed outside the antenna unit for the test antenna to conduct tests, the test box can move on the tooling bracket and has electromagnetic wave shielding performance; and

[0010] Vector network analyzer, the vector network analyzer is connected to the test antenna and the antenna unit respectively through the first cable and the second cable.

[0011] In a simple antenna array amplitude-phase test device provided by the present utility model, it can also have the following characteristics: wherein, an absorbing material is laid on the inner side of the slot with a downward opening of the test box, and a handle is provided on the outside of the test box for moving the test box.

[0012] In a simple antenna array amplitude-phase test device provided by the present utility model, it can also have the following characteristics: wherein, a guide rail is provided above the tooling bracket, and rollers matching with the guide rail are provided at the bottom of the test box.

[0013] In a simple antenna array amplitude-phase test device provided by the present utility model, it can also have the following characteristics: wherein, a scale is provided on the tooling bracket, and a pointer corresponding to the scale is provided on the side of the test box for determining the specific moving position of the test box.

[0014] In a simple antenna array amplitude-phase test device provided by the present utility model, it can also have the following characteristics: wherein, the test antenna and the antenna unit are coplanar and their central axes are aligned, and the test antenna is a dipole antenna covering the frequency of the antenna to be measured.

[0015] Functions and effects of the utility model

[0016] According to a simple antenna array amplitude-phase test device involved in the present utility model, by using the test box, amplitude-phase tests can be carried out without the need for a microwave anechoic chamber, and the test box is directly arranged above the tooling bracket, the overall device occupies a small area, has a simple structure and is convenient to operate. Description of the drawings

[0017] Figure 1 is a perspective view of a simple antenna array amplitude-phase test device in an embodiment of the present utility model;

[0018] Figure 2 is a side view of a simple antenna array amplitude-phase test device in an embodiment of the present utility model;

[0019] Figure 3 is a top view of a simple antenna array amplitude-phase test device in an embodiment of the present utility model;

[0020] Figure 4It is the front view of the simple antenna array amplitude-phase test device in the embodiment of the present utility model;

[0021] Figure 5 It is the structural schematic diagram of the test box in the embodiment of the present utility model; and

[0022] Figure 6 It is the specific structural schematic diagram of the scale part in the embodiment of the present utility model. Specific embodiments

[0023] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0024] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the following embodiments will specifically describe the simple antenna array amplitude-phase test device of the present utility model in conjunction with the drawings.

[0025] Figure 1 It is the three-dimensional view of the simple antenna array amplitude-phase test device in this embodiment. Figure 2 It is the side view of the simple antenna array amplitude-phase test device in this embodiment. Figure 3 It is the top view of the simple antenna array amplitude-phase test device in this embodiment. Figure 4 It is the front view of the simple antenna array amplitude-phase test device in this embodiment.

[0026] As Figures 1-4 shown, the simple antenna array amplitude-phase test device 100 in this embodiment includes a tooling bracket 10, a test box 20, a vector network analyzer 50, and an antenna unit 70 to be tested.

[0027] The tooling bracket 10 is used to carry the antenna unit and the test box 20. A guide rail 12 and a scale 11 are provided above the tooling bracket 10, and rollers 24 matching the guide rail 12 are provided at the bottom of the test box 20.

[0028] Figure 5 It is the structural schematic diagram of the test box in the embodiment of the present utility model.

[0029] Figure 6 It is the specific structural schematic diagram of the scale part in the embodiment of the present utility model.

[0030] AsFigures 5-6 As shown in the figure, a slotted groove 22 with a downward opening is provided at the middle position of the bottom of the test box 20. The slotted groove 22 just avoids the antenna unit 70 to be tested and is placed outside the antenna unit 70. At the same time, an absorbing material 21 is laid on the inner side of the slotted groove, which can well simulate a shielding body and has the performance of electromagnetic wave shielding to avoid being affected during the test process.

[0031] A test antenna 40 is provided at the top of the test box 20. The test antenna 40 corresponds to the position of the antenna unit 70. Specifically, the test antenna 40 and the antenna unit 70 are coplanar and their central axes are aligned. The test antenna 40 is a dipole antenna covering the frequency of the antenna to be tested, and the test antenna can perform amplitude-phase testing on the antenna unit 70 through the slotted groove 22.

[0032] A handle 23 is provided on the outside of the test box 20, which can move on the tooling bracket 10. At the same time, a pointer 30 is also provided on the outside of the test box 20. During the movement, the pointer 30 of the test box 20 cooperates with the scale 11 on the tooling bracket 10 to determine the specific movement position during the test.

[0033] The vector network analyzer 50 transmits and receives test signals through a cable 60. Specifically, the vector network analyzer 50 transmits signals to the test antenna 40 through a first cable 61. The test antenna 40 transmits the signals to the antenna unit 70, and the antenna unit 70 transmits the final data back to the vector network analyzer 50 through a second cable 62 for analysis.

[0034] Usage method:

[0035] Move the test box 20, determine the movement position through the pointer 30 and the scale 11, stop at the corresponding position, sample the amplitude and phase of the antenna unit 70 to be tested through the test antenna 40 inside the test box 20. At this time, both the test antenna 40 and the antenna unit 70 to be tested are in the test box 20 covered with the absorbing material 21. The test antenna 40 and the antenna unit 70 to be tested are coplanar and their central axes are aligned. Sample the amplitude and phase of each antenna unit one by one in this way, and the amplitude and phase data of each unit dipole of the antenna to be tested can be measured.

[0036] Functions and effects of the embodiment

[0037] According to a simple antenna array amplitude-phase testing device involved in the present invention, by using a test box, the amplitude-phase testing does not need to be carried out in a microwave anechoic chamber, and the test box is directly arranged above the tooling bracket. The overall device occupies a small area, has a simple structure and is convenient to operate.

[0038] A handle is provided on the outside of the test box, which cooperates with the bottom rollers and the guide rail on the tooling bracket. The user can directly push the test box for testing, and the operation is simple.

[0039] The scale provided on the tooling bracket corresponds to the pointer on the side of the test box, and can obtain information such as the moving distance of the test box in real time during the test.

[0040] The slot position corresponds to the test antenna, surrounds the outside of the antenna unit to be tested, and the inside of the slot is covered with absorbing material, which can well shield electromagnetic interference and improve the accuracy of the test results.

[0041] Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A simple antenna array amplitude-phase test device for testing antenna elements, characterized in that Comprising: A tooling bracket for carrying an antenna unit and a test box; A test box, at the middle position of the bottom of the test box, there is a downward-opening slot, at the top of the test box, there is a test antenna, the test antenna corresponds to the position of the antenna unit, the slot is placed outside the antenna unit for the test antenna to conduct tests, the test box can move on the tooling bracket and has electromagnetic wave shielding performance; And A vector network analyzer, the vector network analyzer is respectively connected to the test antenna and the antenna unit through a first cable and a second cable.

2. The simple antenna array amplitude-phase test device according to claim 1, characterized in that: Among them, Absorbing materials are laid on the inner side of the downward-opening slot of the test box, and a handle is provided on the outside of the test box for moving the test box.

3. The simple antenna array amplitude-phase test device according to claim 1, characterized in that: Among them, A guide rail is provided above the tooling bracket, and rollers matching the guide rail are provided at the bottom of the test box.

4. The simple antenna array amplitude-phase test device according to claim 3, characterized in that: Among them, A scale is provided on the tooling bracket, and a pointer corresponding to the scale is provided on the side of the test box for determining the specific moving position of the test box.

5. The simple antenna array amplitude-phase test device according to claim 1, characterized in that: Among them, The test antenna and the antenna unit are coplanar and their central axes are aligned, and the test antenna is a dipole antenna covering the frequency of the antenna to be measured.

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