Multi-feed-source antenna mounting device for microwave anechoic chamber

Abstract

The utility model relates to a microwave anechoic chamber multi-feed-source antenna mounting device, and belongs to a multi-feed-source antenna testing device. Comprising a multi-direction adjusting support and a movable rotating structure installed on the multi-direction adjusting support, a multi-feed-source antenna installation structure is arranged on the rotating structure, and a feed source antenna is arranged in a supporting round hole. The multi-feed-source antenna mounting structure has the beneficial effects that when the multi-feed-source antenna mounting structure is used, a plurality of feed source antennas are respectively mounted in the supporting circular holes of the multi-feed-source antenna mounting structure according to actual requirements, so that the problem of low testing efficiency caused by frequent replacement of the antennas during testing in the prior art is solved; meanwhile, the problem that the antenna is prone to damage and abrasion during frequent replacement is solved, the position of the installed feed source antenna is adjusted through the multi-direction adjusting support and the movable rotating structure, the problem that errors are large due to manual adjustment is reduced, and the testing accuracy is improved.

Description

Technical Field

[0001] The present utility model relates to a multi-feed antenna installation device for a microwave anechoic chamber, belonging to a multi-feed antenna test device. Background Art

[0002] Currently, feed antennas are divided into types such as broadband horn antennas and waveguide feed horn antennas. The broadband horn antennas have a relatively wide frequency band, usually divided into 1 GHz - 20 GHz and 18 GHz - 40 GHz, with a relatively large test accuracy error; the waveguide feed horn antennas have higher accuracy but a relatively narrow frequency band, divided into multiple groups of antennas, such as 4 - 6, 6 - 8, 8 - 12, 12 - 18, etc. The existing feed antennas generally include a transmitting signal end horn antenna and a receiving signal end horn antenna. Before testing, the horn antenna needs to be fixed at a specified position. During microwave anechoic chamber testing, according to the test requirements, different frequency band horn antennas need to be replaced, and the reflectivity is tested by the RCS method. During testing, there will be phenomena such as frequent antenna replacement, time-consuming, serious component wear, and large test errors. Summary of the Invention

[0003] The technical problem to be solved by the present utility model is: to provide a multi-feed antenna installation device for a microwave anechoic chamber to solve the problems faced in the industry.

[0004] To solve the above technical problem, the present utility model is realized through the following technical solutions: A multi-feed antenna installation device for a microwave anechoic chamber includes a multi-direction adjustment bracket, a moving and rotating structure installed on the multi-direction adjustment bracket. A multi-feed antenna installation structure is provided on the rotating structure. The multi-feed antenna installation structure includes a first support circular plate and a second support circular plate arranged in parallel with each other. A plurality of support connecting rods are provided between the first support circular plate and the second support circular plate. A plurality of support circular holes are provided on the second support circular plate, and a feed antenna is provided in the support circular holes.

[0005] Preferably, the moving and rotating structure includes a moving fixed plate. A plurality of groups of moving linear guide rails arranged in parallel with each other are provided on the moving fixed plate. A moving slider is provided on the moving linear guide rail. A rotating motor is provided on the moving slider, and the first support circular plate is installed on the rotating motor.

[0006] Preferably, a plurality of screw seats are provided between the moving linear guide rails. A screw is provided on the screw seat. A moving seat is also engaged with the screw. The rotating motor is connected to the moving seat, and a rotating handle is further provided at the end of the screw.

[0007] Preferably, the multi-directional adjustment bracket includes a bottom fixing base, on which a first fixing plate is provided. On the upper surface of the first fixing plate, a second fixing plate is provided, and on the second fixing plate, a third fixing plate is provided. A first crossed roller linear slide rail is arranged between the first fixing plate and the second fixing plate, and a second crossed roller linear slide rail is arranged between the second fixing plate and the third fixing plate.

[0008] Preferably, a left-right movement adjustment structure is provided on the sides of the first fixing plate and the second fixing plate. The left-right movement adjustment structure includes two left-right movement mounting seats arranged in parallel. The left-right movement mounting seats are fixed on the sides of the first fixing plate. A left-right movement screw is arranged on the left-right movement mounting seats, and a left-right movement fixing seat is arranged on the left-right movement screw. The left-right movement fixing seat is connected to the second fixing plate.

[0009] Preferably, a front-back movement adjustment structure is provided on the sides of the second fixing plate and the third fixing plate. The front-back movement adjustment structure includes two front-back movement mounting seats arranged in parallel. The front-back movement mounting seats are fixed on the sides of the second fixing plate. A front-back movement screw is arranged on the front-back movement mounting seats, and a front-back movement fixing seat is arranged on the front-back movement screw. The front-back movement fixing seat is connected to the third fixing plate.

[0010] Preferably, an intermediate transition seat is provided on the third fixing plate, and a U-shaped bracket is provided on the intermediate transition seat.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: When in use, a plurality of feed antennas are respectively installed into the support round holes of the multi-feed antenna installation structure according to actual needs, solving the problems in the prior art that the test efficiency is low due to frequent antenna replacement during testing, and at the same time solving the problems that the antenna is prone to damage and has large wear during frequent replacement. At the same time, in this patent, the position of the installed feed antenna is adjusted through the multi-directional adjustment bracket and the moving and rotating structure, reducing the problem of large errors caused by manual adjustment and improving the test accuracy. Description of the Drawings

[0012] The present utility model will be further described below with reference to the drawings.

[0013] Figure 1 is the overall structural schematic diagram of the present utility model.

[0014] Figure 2 is Figure 1 the structural schematic diagram after no feed antenna is installed in

[0015] Figure 3 the schematic diagram of the multi-feed antenna installation structure.

[0016] Figure 4 It is an exploded view of the multi-feed antenna installation structure.

[0017] Figure 5 It is a connection schematic diagram of the multi-direction adjustment bracket and the moving and rotating structure.

[0018] Figure 6 It is Figure 5 The schematic diagram of the structure after removing the rotating motor in

[0019] Figure 7 It is a schematic diagram of the moving and rotating structure.

[0020] Figure 8 It is a schematic diagram of the internal structure of the moving and rotating structure.

[0021] Figure 9 It is a schematic diagram of the multi-direction adjustment bracket.

[0022] Figure 10 It is a schematic diagram of the structure of the multi-direction adjustment bracket after removing the intermediate transition seat and the U-shaped bracket.

[0023] Figure 11 It is a connection schematic diagram of the bottom fixing seat and the first fixing plate.

[0024] Figure 12 It is in Figure 11 The schematic diagram of the structure after adding the second fixing plate on

[0025] In the figure: multi-direction adjustment bracket 1; bottom fixing seat 101; first fixing plate 102; second fixing plate 103; third fixing plate 104; moving and rotating structure 2; moving fixing plate 201; moving linear guide 202; moving slider 203; rotating motor 204; screw seat 205; screw 206; moving seat 207; turning handle 208; multi-feed antenna installation structure 3; first support circular plate 301; second support circular plate 302; support connecting rod 303; support circular hole 304; feed antenna 305; first cross-roller linear slide rail 4; second cross-roller linear slide rail 5; left and right moving adjustment structure 6; left and right moving mounting seat 601; left and right moving screw 602; left and right moving fixing seat 603; front and back moving adjustment structure 7; front and back moving mounting seat 701; front and back moving screw 702; front and back moving fixing seat 703; intermediate transition seat 8; U-shaped bracket 9. Specific embodiments

[0026] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0027] Such as Figures 1 to 12A microwave anechoic chamber multi-feed antenna installation device shown in the figure, comprising a multi-direction adjustment bracket 1, a moving and rotating structure 2 mounted on the multi-direction adjustment bracket 1, a multi-feed antenna mounting structure 3 provided on the moving and rotating structure 2. The multi-feed antenna mounting structure 3 includes a first support circular plate 301 and a second support circular plate 302 arranged in parallel. A plurality of support connecting rods 303 are provided between the first support circular plate 301 and the second support circular plate 302. A plurality of support circular holes 304 are provided on the second support circular plate 302, and a feed antenna 305 is arranged in the support circular holes 304.

[0028] In order to achieve rotation, further, the moving and rotating structure 2 includes a moving fixed plate 201. A plurality of groups of mutually parallel moving linear guide rails 202 are provided on the moving fixed plate 201. A moving slider 203 is arranged on the moving linear guide rails 202. A rotating motor 204 is arranged on the moving slider 203. The first support circular plate 301 is mounted on the rotating motor 204.

[0029] In order to achieve left and right fine adjustment, further, a plurality of screw seats 205 are provided between the moving linear guide rails 202. A screw 206 is arranged on the screw seat 205. A moving seat 207 is also engaged on the screw 206. The rotating motor 204 is connected to the moving seat 207. A rotating handle 208 is further arranged at the end of the screw 206.

[0030] The multi-direction adjustment bracket 1 includes a bottom fixed seat 101. A first fixed plate 102 is provided on the bottom fixed seat 101. The upper surface of the first fixed plate 102 is provided with a second fixed plate 103. The second fixed plate 103 is provided with a third fixed plate 104. A first crossed roller linear slide rail 4 is provided between the first fixed plate 102 and the second fixed plate 103. A second crossed roller linear slide rail 5 is provided between the second fixed plate 103 and the third fixed plate 104.

[0031] In order to achieve the purpose of left and right adjustment, further, a left and right movement adjustment structure 6 is provided on the sides of the first fixed plate 102 and the second fixed plate 103. The left and right movement adjustment structure 6 includes two mutually parallel left and right movement mounting seats 601. The left and right movement mounting seats 601 are fixed on the sides of the first fixed plate 102. A left and right movement screw 602 is provided on the left and right movement mounting seats 601. A left and right movement fixed seat 603 is provided on the left and right movement screw 602. The left and right movement fixed seat 603 is connected to the second fixed plate 103.

[0032] For the purpose of achieving front-back adjustment, further, a front-back movement adjustment structure 7 is provided on the sides of the second fixed plate 103 and the third fixed plate 104. The front-back movement adjustment structure 7 includes two front-back movement mounting seats 701 arranged in parallel. The front-back movement mounting seats 701 are fixed on the sides of the second fixed plate 103. A front-back movement screw rod 702 is provided on the front-back movement mounting seats 701. A front-back movement fixed seat 703 is provided on the front-back movement screw rod 702. The front-back movement fixed seat 703 is connected to the third fixed plate 104.

[0033] For the purpose of playing a supporting role, further, an intermediate transition seat 8 is provided on the third fixed plate 104, and a U-shaped bracket 9 is provided on the intermediate transition seat 8.

[0034] During use, a plurality of feed antennas 305 are installed in the support circular holes 304 of the multi-feed antenna mounting structure 3. By fixing the plurality of feed antennas 305, the problems in the prior art that the test efficiency is low due to the need to frequently replace the antenna during the test and that the antenna is prone to damage and large wear during frequent replacement are solved.

[0035] After the feed antenna 305 is fixed, first, the handle 208 is rotated to drive the screw rod 206 to rotate. At this time, the moving seat 207 engaged with the screw rod 206 moves left and right along the screw rod 206. The rotating motor 204 is connected to the moving seat 207. In this way, the rotating motor 204 follows the moving seat 207 to move, and the multi-feed antenna mounting structure 3 is installed on the rotating motor 204. In this way, the multi-feed antenna mounting structure 3 moves through the moving seat 207. The feed antenna 305 is adjusted left and right by the above method. At the same time, the rotating motor 204 is started as needed, and the feed antenna 305 is driven to rotate by the rotating motor 204 to adjust the position of the feed antenna 305 according to actual needs.

[0036] In this patent, the relative positions of the first fixed plate 102, the second fixed plate 103, and the third fixed plate 104 can also be adjusted through the left-right movement adjustment structure 6 and the front-back movement adjustment structure 7 to achieve a large adjustment of the position of the multi-feed antenna mounting structure 3.

[0037] In this patent, the first crossed roller linear slide rail 4 and the second crossed roller linear slide rail 5 are used. The model of the crossed roller linear slide rail in this patent is: CGDV-H22-L200.

[0038] In summary, in this patent, when in use, multiple feed antennas 305 are respectively installed into the support round holes 304 of the multi-feed antenna installation structure according to actual needs, solving the problem of low test efficiency caused by frequent antenna replacement during testing in the prior art. At the same time, it also solves the problems of easy damage and large wear of the antenna during frequent replacement. At the same time, in this patent, the position of the installed feed antenna is adjusted through the multi-direction adjustment bracket 1 and the moving and rotating structure 2, reducing the problem of large errors caused by manual adjustment and improving the test accuracy.

[0039] It should be emphasized that the above are only the preferred embodiments of the present invention, and do not constitute any form of limitation to the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A multi-feed antenna installation device for a microwave darkroom, characterized in that: The invention comprises a multi-directional adjustment bracket (1), a movable rotating structure (2) mounted on the multi-directional adjustment bracket (1), a multi-feed antenna mounting structure (3) being arranged on the movable rotating structure (2), the multi-feed antenna mounting structure (3) comprising a first supporting circular plate (301) and a second supporting circular plate (302) arranged parallel to each other, a plurality of supporting connecting rods (303) being arranged between the first supporting circular plate (301) and the second supporting circular plate (302), a plurality of supporting circular holes (304) being arranged on the second supporting circular plate (302), and a feed antenna (305) being arranged in each of the supporting circular holes (304).

2. The microwave darkroom multi-feed antenna installation device according to claim 1, characterized in that: The movable rotating structure (2) comprises a movable fixed plate (201), a plurality of sets of movable linear guide rails (202) arranged in parallel with each other are arranged on the movable fixed plate (201), a movable slider (203) is arranged on the movable linear guide rail (202), a rotary motor (204) is arranged on the movable slider (203), and the first supporting circular plate (301) is mounted on the rotary motor (204).

3. The microwave darkroom multi-feed antenna installation device according to claim 2, characterized in that: A plurality of screw seats (205) are arranged between the movable linear guide rails (202), a screw (206) is arranged on the screw seat (205), a movable seat (207) is also meshed on the screw (206), the rotary motor (204) is connected to the movable seat (207), and a rotating handle (208) is also arranged at the end of the screw (206).

4. The microwave darkroom multi-feed antenna installation device according to claim 1, characterized in that: The multi-directional adjustment bracket (1) comprises a bottom fixing seat (101), a first fixing plate (102) being arranged on the bottom fixing seat (101), a second fixing plate (103) being arranged on the upper surface of the first fixing plate (102), a third fixing plate (104) being arranged on the second fixing plate (103), a first cross roller linear guide rail (4) being arranged between the first fixing plate (102) and the second fixing plate (103), and a second cross roller linear guide rail (5) being arranged between the second fixing plate (103) and the third fixing plate (104).

5. The microwave darkroom multi-feed antenna installation device according to claim 4, characterized in that: A left-right movable adjustment structure (6) is arranged on the side of the first fixed plate (102) and the second fixed plate (103), and the left-right movable adjustment structure (6) comprises two left-right movable mounting seats (601) arranged parallel to each other, and the left-right movable mounting seats (601) are fixed to the side of the first fixed plate (102), and a left-right movable screw rod (602) is arranged on the left-right movable mounting seat (601), and a left-right movable fixed seat (603) is arranged on the left-right movable screw rod (602), and the left-right movable fixed seat (603) is connected to the second fixed plate (103).

6. The microwave darkroom multi-feed antenna installation device according to claim 4, characterized in that: A forward-and-backward movement adjustment structure (7) is arranged on the side of the second fixed plate (103) and the third fixed plate (104), and the forward-and-backward movement adjustment structure (7) comprises two forward-and-backward movement mounting seats (701) arranged parallel to each other, the forward-and-backward movement mounting seats (701) are fixed on the side of the second fixed plate (103), a forward-and-backward movement screw rod (702) is arranged on the forward-and-backward movement screw rod (702), and a forward-and-backward movement fixing seat (703) is arranged on the forward-and-backward movement fixing seat (703), and the forward-and-backward movement fixing seat (703) is connected to the third fixed plate (104).

7. The microwave darkroom multi-feed antenna installation device according to claim 4, characterized in that: An intermediate transition seat (8) is provided on the third fixing plate (104), and a U-shaped bracket (9) is provided on the intermediate transition seat (8).

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