CN218336452U - 5G millimeter wave base station antenna OTA testing arrangement - Google Patents

Abstract

The utility model aims at providing a 5G millimeter wave base station antenna OTA testing arrangement, it includes the outer container subassembly, inhale wave assembly and determine module, the outer container subassembly includes box and shield door, the test chamber has been seted up in the box, set up the blowing window that is linked together with the test chamber on the box, the shield door articulates on the lateral wall of box, it inhales cotton and a plurality of ripples cotton piece to inhale the wave assembly to include two spikes, each ripples cotton piece of inhaling sets up respectively on the inside wall in test chamber, two spikes inhale the wave cotton and set up respectively on the roof and the diapire in test chamber, the determine module includes the antenna, carry material platform and a plurality of filter socket, each filter socket all sets up on that side that the shield door was kept away from to the box, the antenna sets up on the spike of test chamber roof is inhaled the wave cotton, it sets up on the spike of test chamber diapire to carry the material platform to inhale the wave cotton. So, can carry out wireless test to the base station antenna, effectively simplify the test environment, can be applied to on the production line moreover. The utility model discloses can be applied to the signal test field.

Description

5G millimeter wave base station antenna OTA testing arrangement

Technical Field

The utility model relates to a signal test field especially relates to a 5G millimeter wave base station antenna OTA testing arrangement.

Background

Millimeter wave (mmWave): the electromagnetic wave with the wavelength of 1-10 mm is positioned in the overlapping wavelength range of microwave and far infrared wave, so that the electromagnetic wave has the characteristics of two wave spectrums. Compared with light waves, the millimeter waves have the advantages that the time attenuation is reduced by utilizing atmospheric window transmission, and the influence of natural light and a heat radiation source is small. The millimeter wave has the advantages of extremely wide bandwidth, narrow beam, small influence of weather, easy miniaturization of devices and the like. The 5G system can realize the purposes of ultrahigh flow density, ultrahigh connection number density and ultrahigh mobility technology by searching available spectrum resources in a millimeter wave frequency band. In order to comply with the 5G mobile communication standard, the complexity of 5G device testing and measurement technology is increasing.

The 5G base station is used as one of the rings of the 5G system, and the radiation performance index of the 5G base station is particularly critical. The traditional base station adopts radio frequency conduction test, namely, a radio frequency cable is directly used for connecting an output interface of a piece to be tested with an interface of a test instrument to carry out radio frequency test.

However, since the 5G flow density is higher, a large number of cable connectors are required to be consumed for using the conventional radio frequency conduction test, which results in the over-high cost of the test system, and the number of the connecting cables is increased, which results in the more complicated test environment, and the difficulty of connecting the connecting cables is further increased due to the smaller overall size of the millimeter wave antenna module; secondly, the traditional radio frequency conduction test needs to be carried out in a large anechoic chamber, the investment is overlarge, and the test on a production line is not suitable. Therefore, in order to solve the above technical problem, the 5G millimeter wave base station antenna OTA testing device of the present application is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming not enough among the prior art, providing one kind and can carrying out wireless test to 5G millimeter wave base station antenna to can simplify test environment with reduction test cost, and can be applied to and produce 5G millimeter wave base station antenna OTA testing arrangement on the line.

The utility model adopts the technical proposal that:

A5G millimeter wave base station antenna OTA testing arrangement includes:

the outer box assembly comprises a box body and a shielding door, a testing cavity is formed in the box body, a material placing window communicated with the testing cavity is formed in one side face of the box body, the shielding door is hinged to the outer side wall of the box body, and the shielding door is used for sealing the material placing window;

the wave absorbing assembly comprises two peak wave absorbing cottons and a plurality of wave absorbing cotton blocks, each wave absorbing cotton block is arranged on the inner side wall of the test cavity, and the two peak wave absorbing cottons are arranged on the top wall and the bottom wall of the test cavity respectively; and

the detection assembly comprises an antenna, a material loading platform and a plurality of filtering sockets, wherein each filtering socket is arranged on the side face, away from the shielding door, of the box body, the antenna is arranged on the peak wave-absorbing cotton on the top wall of the testing cavity, the material loading platform is arranged on the peak wave-absorbing cotton on the bottom wall of the testing cavity, and the antenna is aligned with the material loading platform.

Preferably, the box body is of a rectangular parallelepiped structure.

Preferably, a plurality of mounting holes are further formed in one side, far away from the material placing window, of the box body, and the filtering sockets respectively penetrate through the mounting holes.

Preferably, the peak wave-absorbing cotton and the wave-absorbing cotton block are both of an expansion type polypropylene foaming structure.

Preferably, the thickness of the wave-absorbing cotton block is 40 mm-60 mm.

Preferably, the wave absorbing assembly further comprises conductive cotton, the conductive cotton is arranged on the shielding door, and when the shielding door and the box body are closed, the conductive cotton is abutted to the box body.

Preferably, the detection assembly further comprises an adjusting bracket, the adjusting bracket is arranged on the top wall of the test chamber, and the antenna is adjustably arranged on the adjusting bracket.

Preferably, the antenna is a horn antenna.

Preferably, the outer container assembly further comprises a plurality of casters, and each caster is respectively arranged at the bottom of the box body.

Preferably, the outer box assembly further comprises two carrying handrails, and the two carrying handrails are respectively and fixedly arranged on two sides of the box body.

The beneficial effects of the utility model are that:

the utility model discloses a 5G millimeter wave base station antenna OTA testing arrangement, it includes the outer container subassembly, wave-absorbing component and determine module, the outer container subassembly includes box and shield door, the test chamber has been seted up in the box, set up the blowing window that is linked together with the test chamber on one of them side of box, the shield door articulates on the lateral wall of box, the shield door is used for sealing the blowing window, wave-absorbing component includes that two spikes inhale ripples cotton and a plurality of ripples cotton piece of inhaling, each ripples cotton piece of inhaling sets up respectively on the inside wall in test chamber, two spikes inhale ripples cotton and set up respectively on the roof and the diapire in test chamber, determine module includes the antenna, carry material platform and a plurality of filtering socket, each filtering socket all sets up on that side that the shielding door was kept away from to the box, the antenna sets up on the ripples cotton of inhaling of test chamber roof, carry material platform sets up on the ripples cotton is inhaled to the spike of test chamber diapire, and antenna and carry material platform are aligned. Inhale the ripples cotton and inhale the ripples cotton piece through set up the peak in the box to effective isolated external radiation interference, thereby can accurately carry out wireless test to the base station antenna, effectively simplify test environment, the box sets up to mobilizable structure moreover, consequently can be applied to the production line, need not use special anechoic chamber to test, tests more in a flexible way, can save the cost of buildding of anechoic chamber moreover.

Drawings

Fig. 1 is a schematic structural diagram of a 5G millimeter wave base station antenna OTA testing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a part of the 5G millimeter wave base station antenna OTA testing device shown in FIG. 1;

fig. 3 is a schematic structural view of a wave-absorbing cotton block according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional structure diagram of the 5G millimeter wave base station antenna OTA testing apparatus shown in fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are illustrated in the accompanying drawings.

As shown in fig. 1 to 3, a 5G millimeter wave base station antenna OTA testing device 1, which comprises an outer box assembly 11, a wave absorbing assembly 12 and a detection assembly 13, wherein the outer box assembly 11 comprises a box body 111 and a shield door 112, a test cavity 1111 is formed in the box body 111, a discharge window 1112 communicated with the test cavity 1111 is formed in one side surface of the box body 111, the shield door 112 is hinged on the outer side wall of the box body 111, and the shield door 112 is used for closing the discharge window 1112.

Specifically, the shield door 112 is hinged to the outer side wall of the box body 111, so that the shield door 112 can close the discharging window 1112 on the box body 111 when being closed, and the test chamber 1111 is in a closed state. The wave-absorbing component 12 and the detection component 13 are both installed in the test chamber 1111, and the wave-absorbing component 12 is used for absorbing electromagnetic waves, so that the test chamber 1111 is in an electromagnetic shielding state. The detection assembly 13 is used for radiation detection of a base station antenna placed in the test chamber 1111.

Preferably, the case 111 has a rectangular parallelepiped structure. Specifically, the box 111 is formed by splicing 6 panels, for example, 6 panels are welded into a whole structure, so that the gap between any two panels is effectively eliminated. Further, the test chamber 1111 is surrounded by 6 panels. The drop window 1112 is located on one of the lateral panels. The shield door 112 is hinged to the panel where the drop window 1112 is located, so that the shield door 112 can close the drop window 1112.

As shown in fig. 1, 3 and 4, the wave-absorbing assembly 12 includes two peak wave-absorbing cottons 121 and a plurality of wave-absorbing cottons 122, each wave-absorbing cottons 122 is disposed on an inner sidewall of the test chamber 1111, and the two peak wave-absorbing cottons 121 are disposed on a top wall and a bottom wall of the test chamber 1111, respectively.

Specifically, in order to effectively shield the casing 111 from external electromagnetic radiation, a piece of wave-absorbing cotton 122 is attached to the inner side wall of the test chamber 1111. For example, except for the corresponding position of the discharge window 1112, the test chamber 1111 includes six inner walls, namely, an upper inner wall, a lower inner wall, a left inner wall, a right inner wall, a front inner wall and a rear inner wall, so that the wave-absorbing cotton block 122 is provided with six inner walls to ensure that the wave-absorbing cotton block 122 can be filled in the inner side wall of the test chamber 1111. Furthermore, a spike wave-absorbing cotton 121 is also arranged on the upper and lower top walls of the test chamber 1111. Therefore, a sealed radiation shielding area can be formed in the test cavity 1111 by using the wave-absorbing cotton block 122 and the spike wave-absorbing cotton 121. Further, the wave absorbing cotton block 122 is also installed on the inner wall of the shielding door 112 close to the test cavity 1111, so that when the shielding door 112 is closed, the external electromagnetic radiation can be effectively shielded. Furthermore, a plurality of sharp structures are arranged on one side surface of the spike wave-absorbing cotton 121 close to the test cavity 1111.

Preferably, the wave absorbing cotton 121 and the wave absorbing cotton block 122 are both of an expansion type polypropylene foaming structure. So, can effectively shield external electromagnetic radiation to make and to carry out OTA test to the base station antenna reliably in the test chamber 1111. The OTA test is a wireless test, and is different from the conventional conduction test in that a cable connector is not required to connect the base station antenna to be tested.

Preferably, the thickness of the wave-absorbing cotton block 122 is 40 mm-60 mm. Wherein, the thickness of the wave-absorbing cotton block 122 can be 45mm, or 50mm, or 55mm.

As shown in fig. 1, fig. 2 and fig. 4, the detecting assembly 13 includes an antenna 131, a material loading platform 132 and a plurality of filter sockets 133, each filter socket 133 is disposed on a side surface of the box 111 away from the shield door 112, the antenna 131 is disposed in the spike wave-absorbing cotton 121 on the top wall of the testing chamber 1111, the material loading platform 132 is disposed on the spike wave-absorbing cotton 121 on the bottom wall of the testing chamber 1111, and the antenna 131 is aligned with the material loading platform 132.

Specifically, in order to allow the base station antenna to be tested to be reliably fixed within the test chamber 1111. Therefore, a material loading platform 132 is installed at the bottom of the test chamber 1111, and in order to isolate the external electromagnetic radiation interference, the material loading platform 132 is disposed above the spike wave-absorbing cotton 121 on the bottom wall of the test chamber 1111. Furthermore, the antenna 131 is installed above the material loading platform 132, and in order to isolate the external electromagnetic radiation interference, the antenna 131 is fixedly installed on the top wall of the test chamber 1111 and passes through the spike wave-absorbing cotton 121 on the top wall of the test chamber 1111, so that the signal emitting end of the antenna 131 and the material loading platform 132 are both located in the area surrounded by the spike wave-absorbing cotton 121 and the wave-absorbing cotton block 122. Furthermore, because the antenna 131 needs to access signals, a plurality of filter sockets 133 are installed on the side surface of the box body 111 away from the shielded door 112, and the filter sockets 133 are used for accessing and transmitting signals to the antenna 131, furthermore, a signal detection module is also installed in the test chamber 1111, and signals detected by the signal detection module are also connected with an external host computer through the filter sockets 133, so that the actual test condition of the base station antenna can be detected in real time. It should be noted that as the filter socket 133 extends from the housing 111 into the test chamber 1111, the filter socket 133 also passes through the absorbent cotton 122 mounted on the side walls of the test chamber 1111.

So, through laying on the test chamber 1111 inside wall at box 111 and inhale cotton piece 122 of ripples, still install the spike respectively simultaneously on the roof of test chamber 1111 and the diapire and inhale ripples cotton 121, so, can effectively completely cut off external electromagnetic radiation, guaranteed test chamber 1111 interior single test environment. Therefore, when the base station antenna is placed on the loading platform 132 for wireless testing, the measured data is the actual response data of the base station antenna. The test is more accurate. It should be noted that, due to the adoption of the wireless testing mode, compared with the traditional radio frequency conduction test, the testing environment is simpler, and the number of connecting cables is reduced, so that the material cost can be reduced. Furthermore, the box body 111 is of a movable structure, so that the box body can be directly applied to production lines, a special anechoic chamber is not needed for testing, the testing is more flexible, and the construction cost of the anechoic chamber can be saved.

Preferably, a plurality of mounting holes are further formed on a side of the box 111 away from the material placing window 1112, and the filter sockets 133 respectively penetrate through the mounting holes. Specifically, each filter receptacle 133 is configured to be mounted on the housing 111, and a plurality of mounting holes corresponding to the number of filter receptacles 133 are formed in the housing 111 so that the filter receptacles 133 can smoothly extend into the test chamber 1111.

As shown in fig. 1 and fig. 4, preferably, the detecting assembly 13 further includes an adjusting bracket 134, the adjusting bracket 134 is disposed on the top wall of the testing chamber 1111, and the antenna 131 is adjustably disposed on the adjusting bracket 134.

So, when fixing the base station antenna that will await measuring on material loading platform 132, but because the shape structure of the base station antenna that awaits measuring of each family is different, in order to make antenna 131 be located the base station antenna that awaits measuring directly over to can be compatible with and carry out the OTA test to the different base station antennas that await measuring, consequently set up antenna 131 as the adjustable structure in position, specifically, with adjusting bracket 134 fixed mounting on the roof of test chamber 1111, for example can adopt welded mounting means, or adopt bolt fastening's mounting means. Then, the antenna 131 is slidably mounted on the adjusting frame 134, for example, a slide rail with scales is disposed on the adjusting frame 134, the antenna 131 is mounted on the slide rail through a slider, and further, in order to enable the antenna 131 to be slidably adjusted on a horizontal plane, two vertically intersecting slide rails are mounted on the adjusting frame 134, a first slide rail slides relative to the adjusting frame 134, a second slide rail can slide relative to the first slide rail, and the antenna 131 is mounted on the second slide rail, so that the antenna 131 can be adjusted in position along the horizontal plane, and thus can be aligned with any position of the loading platform 132 below.

Preferably, the antenna 131 is a horn antenna, and further, the antenna 131 may also be a microstrip antenna, or may also be a leaky-wave antenna, and other antennas may also be selected according to actual needs.

As shown in fig. 1, preferably, the wave-absorbing assembly 12 further includes conductive cotton 123, the conductive cotton 123 is disposed on the shielded door 112, and when the shielded door 112 is closed with the box body 111, the conductive cotton 123 is abutted against the box body 111.

Specifically, in order to avoid the electric signal of the gap between the shield door 112 and the box body 111 from interfering with the test chamber 1111, the conductive cotton 123 is disposed between the box body 111 and the shield door 112.

As shown in fig. 1, 2 and 4, the outer box assembly 11 preferably further includes a plurality of casters 113, and each caster 113 is disposed at the bottom of the box 111.

Specifically, a plurality of casters 113, for example, 4 casters 113, are installed on the bottom of the box 111, so that the 5G millimeter wave base station antenna OTA testing device 1 of the present application can be transferred in a workshop through the casters 113.

As shown in fig. 1 and 2, the outer box assembly 11 preferably further includes two carrying armrests 114, and the two carrying armrests 114 are respectively fixed on two sides of the box 111. Specifically, in one embodiment, the box 111 is a metal structure, such as a steel structure, which has a large mass, and in order to make the box 111 easily stressed and quickly transferred, a carrying handrail 114 is installed on each of two sides of the box 111. Further, the carrying handrail 114 is also of a metal structure, and the carrying handrail 114 is welded and fixed to the outer side wall of the box 111.

As shown in fig. 1, preferably, a link lock is provided on an outer side wall of the screen door 112, and a lock ring is further provided on the box 111, and the link lock is used for engaging with the lock ring to reliably close the screen door 112 and the box 111.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a 5G millimeter wave base station antenna OTA testing arrangement which characterized in that includes:

the outer box assembly comprises a box body and a shielding door, a testing cavity is formed in the box body, a material placing window communicated with the testing cavity is formed in one side face of the box body, the shielding door is hinged to the outer side wall of the box body, and the shielding door is used for sealing the material placing window;

the wave absorbing assembly comprises two peak wave absorbing cottons and a plurality of wave absorbing cotton blocks, each wave absorbing cotton block is arranged on the inner side wall of the test cavity, and the two peak wave absorbing cottons are arranged on the top wall and the bottom wall of the test cavity respectively; and

the detection assembly comprises an antenna, a material loading platform and a plurality of filtering sockets, wherein each filtering socket is arranged on the side face, away from the shielding door, of the box body, the antenna is arranged on the peak wave-absorbing cotton on the top wall of the testing cavity, the material loading platform is arranged on the peak wave-absorbing cotton on the bottom wall of the testing cavity, and the antenna is aligned with the material loading platform.

2. The 5G millimeter wave base station antenna OTA testing device of claim 1, wherein the box is a cuboid structure.

3. The OTA test device for the 5G millimeter wave base station antenna according to claim 1, wherein a plurality of mounting holes are further formed in one side, away from the emptying window, of the box body, and the filtering sockets penetrate through the mounting holes respectively.

4. The OTA testing device for the 5G millimeter wave base station antenna according to claim 1, wherein the spike wave absorbing cotton and the wave absorbing cotton block are both in an expanded polypropylene foam structure.

5. The 5G millimeter wave base station antenna OTA testing device according to claim 1 or 4, wherein the thickness of the wave-absorbing cotton block is 40 mm-60 mm.

6. The 5G millimeter wave base station antenna OTA testing device of claim 1, wherein the wave absorbing assembly further comprises conductive cotton, the conductive cotton is disposed on the shield door, and when the shield door is closed with the box body, the conductive cotton is abutted to the box body.

7. The 5G millimeter wave base station antenna OTA testing device of claim 1, wherein the detection assembly further comprises an adjustment bracket disposed on a top wall of the test chamber, the antenna being adjustably positioned on the adjustment bracket.

8. The 5G millimeter wave base station antenna OTA testing device of claim 1 or 7, wherein the antenna is a horn antenna.

9. The 5G millimeter wave base station antenna OTA testing device of claim 1, wherein the outer box assembly further comprises a plurality of casters, each caster being disposed at a bottom of the box body, respectively.

10. The 5G millimeter wave base station antenna OTA testing device of claim 1, wherein the outer box assembly further comprises two carrying handrails, the two carrying handrails being fixedly disposed on two sides of the box body, respectively.

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