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CN-224231861-U - Radar antenna array test platform

CN224231861UCN 224231861 UCN224231861 UCN 224231861UCN-224231861-U

Abstract

The utility model relates to the technical field of antenna testing and discloses a radar antenna array testing platform. The test platform comprises a base and a test box, wherein the base is used for horizontally placing an antenna array to be tested, the test box is arranged on the base in a sliding mode along the extending direction of the antenna array, a wave absorbing groove for the antenna array to pass through is formed in one side, close to the base, of the test box, a radiation micro band plate is installed in one side, away from the base, of the test box, and the center point of the radiation micro band plate can be positioned to be located on the same plumb plane with each radiation unit of the antenna array through sliding of the test box. The utility model forms a movable simulated small darkroom outside each radiation unit of the antenna array to be tested, and after testing one radiation unit, the test box is only required to be moved according to the known distance, so that the next radiation unit can be positioned quickly and tested without stopping. The cost required by the traditional darkroom test is effectively reduced, and the debugging, the taking and the placing of the tested antenna array are also facilitated.

Inventors

  • YANG ZHENJIE
  • YANG JUN

Assignees

  • 合肥鼎原科技有限公司

Dates

Publication Date
20260512
Application Date
20241129

Claims (10)

  1. 1. A radar antenna array test platform is characterized by comprising a base (101) and a test box (201), wherein the base (101) is used for horizontally placing an antenna array (3) to be tested, the test box (201) is arranged on the base (101) in a sliding mode along the extending direction of the antenna array (3), a wave absorbing groove (203) for the antenna array (3) to pass through when the test box (201) is close to the base (101) is formed in one side, deviating from the base (101), of the test box (201) is provided with a radiation microstrip board (204), and each radiation unit (301) of the antenna array (3) can be positioned in the same vertical plane perpendicular to the sliding direction with the center point of the radiation microstrip board (204) through sliding of the test box (201).
  2. 2. The radar antenna array test platform according to claim 1, further comprising a scale (102), wherein the scale (102) is fixed on the base (101) and is parallel to the extending direction of the antenna array (3), a pointer (206) pointing to the scale (102) is fixedly arranged on one side of the test box (201), and the pointer (206) and the center point of the radiation microstrip board (204) are located in the same plumb plane perpendicular to the sliding direction.
  3. 3. The radar antenna array testing platform according to claim 1, further comprising upright posts (103) for reducing the vertical distance between the radiating unit (301) and the radiating microstrip board (204), wherein the two upright posts (103) are fixed at two ends of the base (101), and the end surface of each upright post (103) far from the base (101) forms a supporting end for horizontally placing the antenna array (3).
  4. 4. A radar antenna array testing platform according to claim 3, wherein the upright (103) is detachably secured to the base (101).
  5. 5. The radar antenna array testing platform according to claim 1, wherein the inner wall surface of the wave absorbing groove (203) is provided with wave absorbing material.
  6. 6. A radar antenna array testing platform according to any one of claims 1 to 5, further comprising a slide rail (104) fixed to the base (101), wherein a slider (202) is fixedly mounted on a side of the testing box (201) close to the base (101), and the slider (202) is slidably engaged with the slide rail (104) to realize sliding arrangement of the testing box (201) on the base (101).
  7. 7. The radar antenna array test platform according to claim 6, wherein two slide rails (104) are arranged side by side, and the test box (201) is suspended and positioned right above the middle of the two slide rails (104).
  8. 8. The radar antenna array test platform according to any one of claims 1 to 5, wherein the radiating microstrip board (204) is clamped in a reserved clamping groove on the test box (201), and a connector (205) is welded on the radiating microstrip board (204), and wherein an antenna interface (302) and the connector (205) of the antenna array (3) are connected to two ports of the vector network analyzer through cables respectively.
  9. 9. A radar antenna array testing platform according to any one of claims 1 to 5, wherein the base (101) is provided with a strip-shaped through opening (106) through which a cable of the antenna array (3) passes.
  10. 10. A radar antenna array testing platform according to any of claims 1 to 5, further comprising a support frame (105), wherein the base (101) is fixedly mounted on the support frame (105).

Description

Radar antenna array test platform Technical Field The utility model relates to the technical field of antenna testing, in particular to a radar antenna array testing platform. Background In the design and production of radar antenna arrays, the batch is generally huge, a plurality of radiating units are distributed in each antenna array, and sometimes the radiating units of the antenna array can not all meet the design requirements, so that the antenna array needs to be assembled on a radar after being tested and debugged. When testing an antenna array, because the interference of the external environment is large, an ideal state cannot be achieved, and the antenna array can be selected to enter a darkroom constructed by a wave-absorbing material for accurate testing. For example, in chinese patent publication No. CN111953429B, a phased array antenna test system and a test method are disclosed, in which an antenna array and a phased array antenna are both disposed in a microwave dark room, and are tested by using an instrument and a signal transceiver. The scheme is effective, but the construction cost of the darkroom is high, the charging for renting the darkroom is high, and the antenna test and the debugging are a complicated process, so that a great deal of manpower and financial cost are consumed when the darkroom is repeatedly entered, and the scheme is needed to be solved. Disclosure of utility model In order to solve the technical problems in the prior art, the utility model provides a radar antenna array test platform, which utilizes a base and a slidable wave-absorbing test box to form a simulated small darkroom outside each radiating unit of an antenna array to be tested, thereby effectively reducing the cost required by the traditional darkroom test and facilitating the debugging, taking and placing of the tested antenna array. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model discloses a radar antenna array test platform which comprises a base and a test box, wherein the base is used for horizontally placing an antenna array to be tested, the test box is arranged on the base in a sliding mode along the extending direction of the antenna array, a wave absorbing groove for the antenna array to pass through when the test box is close to the base is formed in one side, away from the base, of the test box, a radiation microstrip board is arranged on one side, away from the base, of the test box, and each radiation unit of the antenna array can be positioned to be located in the same vertical plane perpendicular to the sliding direction with the center point of the radiation microstrip board through the sliding of the test box. The test platform further comprises a scale, wherein the scale is fixed on the base and is parallel to the extending direction of the antenna array, a pointer pointing to the scale is fixedly arranged on one side of the test box, and the pointer and the center point of the radiation microstrip board are positioned in the same plumb plane perpendicular to the sliding direction. As a further improvement of the scheme, the test platform further comprises stand columns used for reducing the plumb distance between the radiating units and the radiating microstrip boards, the two stand columns are fixed at two ends of the base, and the end face of each stand column, far away from the base, forms a supporting end for horizontally placing the antenna array. As a further improvement of the scheme, the upright post and the base are detachably fixed. As a further improvement of the above, the inner wall surface of the wave-absorbing groove is provided with a wave-absorbing material. As a further improvement of the scheme, the test platform further comprises a sliding rail fixed on the base, a sliding block is fixedly arranged on one side, close to the base, of the test box, and the sliding block is in sliding fit with the sliding rail to realize sliding arrangement of the test box on the base. As a further improvement of the scheme, two slide rails are arranged side by side, and the test box is suspended and positioned right above the middle of the two slide rails. As a further improvement of the scheme, the radiation micro-band plate is clamped in a clamping groove reserved on the test box, and a connector is welded on the radiation micro-band plate; the antenna interface and the connector of the antenna array are respectively connected with two ports of the vector network analyzer through cables. As a further improvement of the scheme, the base is provided with a strip-shaped through hole for the cable of the antenna array to pass through. As a further improvement of the scheme, the test platform further comprises a support frame, and the base is fixedly arranged on the support frame. Compared with the prior art, the utility model has the beneficial effects that: 1. The utility model utilizes the base and the s