A device and method for testing quasi-optical transmission performance of multi-beam focusing mirror

Abstract

The present invention relates to the technical field of multi-beam focusing mirrors, and discloses a quasi-optical transmission performance test device and method for a multi-beam focusing mirror. The quasi-optical transmission performance test device for a multi-beam focusing mirror comprises a wave source, a waveguide component, a wave source support seat, a mounting seat, a horn antenna and an antenna support seat. The mounting seat is used to install the multi-beam focusing mirror. The wave source support seat and the mounting seat are arranged at intervals along a first direction, and the wave source and the waveguide component are both arranged on the wave source support seat, and the wave source support seat is used to drive the wave source and the waveguide component to move along a second direction and a third direction. The horn antenna is arranged on the antenna support seat, and the antenna support seat can drive the horn antenna to move along the first direction, the second direction and the third direction, and can drive the horn antenna to rotate around a first axis and a second axis, and the first axis is parallel to the first direction, and the second axis is perpendicular to the first axis.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-beam focusing mirrors, and in particular to a device and method for testing quasi-optical transmission performance of a multi-beam focusing mirror. Background Art

[0002] The multi-beam focusing mirror is a very important millimeter wave device in the field of millimeter wave transmission. It is responsible for reflecting the quasi-optical beam incident on the mirror surface, and at the same time completing the functions of beam convergence and shaping. In previous focusing mirror research, single-beam transmission mirrors are usually used, and the transmission performance test is relatively simple. With the increasing demand for multi-beam integrated focusing mirrors, it is necessary to develop a multi-beam quasi-optical transmission performance test method to obtain the complex millimeter wave distribution law and focusing characteristics on the quasi-optical transmission path caused by the unequal shapes of each small mirror surface of the focusing mirror and the slight tilt angle. At the same time, it is also corrected with theoretical calculations, and the test results are used to evaluate the processing technology of the multi-beam focusing mirror, thereby further promoting the process optimization of multi-beam integrated multi-beam focusing mirrors.

[0003] Therefore, there is an urgent need for a multi-beam focusing mirror quasi-optical transmission performance testing device and method to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a quasi-optical transmission performance testing device and method for a multi-beam focusing mirror, so as to realize the quasi-optical transmission performance testing of each reflecting mirror surface of the multi-beam focusing mirror.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A multi-beam focusing mirror quasi-optical transmission performance test device has a first direction, a second direction and a third direction which are perpendicular to each other, and includes a wave source, a waveguide component, a wave source support seat, a mounting seat, a horn antenna and an antenna support seat;

[0007] The mounting seat is used to mount a multi-beam focusing mirror;

[0008] The wave source support seat and the mounting seat are spaced apart along the first direction, the wave source and the waveguide assembly are both arranged on the wave source support seat, and the wave source support seat is used to drive the wave source and the waveguide assembly to move along the second direction and the third direction;

[0009] The horn antenna is arranged on the antenna support base, and the antenna support base can drive the horn antenna to move along the first direction, the second direction and the third direction, and can drive the horn antenna to rotate around a first axis and a second axis, the first axis is parallel to the first direction, and the second axis is perpendicular to the first axis.

[0010] As an improvement of the above technical solution, the third direction is the height direction of the multi-beam focusing mirror quasi-optical transmission performance testing device.

[0011] As an improvement of the above technical solution, the wave source support seat includes a first drive assembly and a second drive assembly;

[0012] The second driving component is arranged on the first driving component, the wave source and the waveguide component are arranged on the second driving component, the first driving component is used to drive the second driving component to move along the second direction, and the second driving component is used to drive the wave source and the waveguide component to move along the third direction.

[0013] As an improvement of the above technical solution, the first driving component includes a first base, a first driving handwheel, a first transmission component, a first slide rail and a second base, the first driving handwheel is rotatably set on the first base, the first slide rail is set on the first base and extends along the second direction, the second base is slidably set on the first slide rail, the second driving component is set on the second base, the first driving handwheel is transmission-connected to the second base via the first transmission component, and the first driving handwheel is used to drive the second base to drive the second driving component to slide along the first slide rail.

[0014] As an improvement of the above technical solution, the second driving component includes a second driving handwheel, a second transmission component, a guide component and a third base. The guide component is arranged on the second base and extends along the third direction. The third base is slidably arranged on the guide component. The wave source and the waveguide component are both arranged on the third base. The second driving handwheel is rotatably arranged on the second base. The second driving handwheel is connected to the third base through the second transmission component. The second driving handwheel is used to drive the third base to drive the wave source and the waveguide component to move along the guide component.

[0015] As an improvement of the above technical solution, the antenna support seat includes a third driving assembly, a fourth driving assembly, a fifth driving assembly, a sixth driving assembly and a seventh driving assembly;

[0016] The fourth driving assembly is arranged on the third driving assembly, the fifth driving assembly is arranged on the fourth driving assembly, the sixth driving assembly is arranged on the fifth driving assembly, and the seventh driving assembly is arranged on the sixth driving assembly;

[0017] The third driving assembly is used to drive the fourth driving assembly to move along the second direction, the fourth driving assembly is used to drive the fifth driving assembly to move along the first direction, the fifth driving assembly is used to drive the sixth driving assembly to move along the third direction, the sixth driving assembly is used to rotate the seventh driving assembly around the first axis, and the seventh driving assembly is used to drive the horn antenna to rotate around the second axis.

[0018] As an improvement of the above technical solution, the third drive assembly includes a first motor and a third transmission assembly, the first motor is transmission-connected to the fourth drive assembly via the third transmission assembly, the fourth drive assembly includes a second motor and a fourth transmission assembly, the second motor is transmission-connected to the fifth drive assembly via the fourth transmission assembly, the fifth drive assembly includes a third motor and a fifth transmission assembly, the third motor is transmission-connected to the sixth drive assembly via the fifth transmission assembly, the sixth drive assembly includes a fourth motor and a sixth transmission assembly, the fourth motor is transmission-connected to the seventh drive assembly via the sixth transmission assembly, the seventh drive assembly includes a fifth motor and a seventh transmission assembly, and the fifth motor is transmission-connected to the horn antenna via the seventh transmission assembly.

[0019] As an improvement of the above technical solution, the waveguide component includes a mode converter, and the mode converter is used to convert the beam emitted by the wave source from a TE10 mode to a HE11 mode.

[0020] As an improvement of the above technical solution, it also includes a supporting platform, and the wave source supporting seat, the mounting seat and the antenna supporting seat are all arranged on the supporting platform.

[0021] As an improvement of the above technical solution, a quasi-optical transmission performance test device using a multi-beam focusing mirror as described in any one of the above items includes the following steps:

[0022] S1, installing the multi-beam focusing mirror on the mounting base;

[0023] S2. Adjust the positions of the wave source and the waveguide assembly through the wave source support seat so that the quasi-optical beam emitted by the wave source through the waveguide assembly can be transmitted to the center of one of the reflective mirrors on the multi-beam focusing mirror; drive the horn antenna to rotate around the first axis and / or the second axis through the antenna support seat so that the axis of the horn antenna is parallel to a third axis, and the third axis is the axis of the quasi-optical beam after being reflected by the multi-beam focusing mirror;

[0024] S3, the wave source emits a quasi-optical beam through the waveguide assembly, and drives the horn antenna to move in a plane perpendicular to the third axis through the antenna support seat;

[0025] S4, adjusting the positions of the wave source and the waveguide assembly through the wave source support seat, so that the wave source can be transmitted to the center of another reflecting mirror on the multi-beam focusing mirror through the waveguide assembly;

[0026] S5. The wave source emits a quasi-optical beam through the waveguide component, and drives the horn antenna to move in a plane perpendicular to the third axis through the antenna support base.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The multi-beam focusing mirror quasi-optical transmission performance testing device of the present invention, when testing the multi-beam focusing mirror, the multi-beam focusing mirror is installed on a mounting base, a wave source and a waveguide assembly generate a quasi-optical beam, the quasi-optical beam is incident on the multi-beam focusing mirror, and an antenna support base drives the horn antenna to move to obtain voltage signals at different positions, thereby obtaining the reflected beam cross-sectional power energy distribution according to the voltage signal distribution. The quasi-optical transmission performance test device of the multi-beam focusing mirror of the present invention, the wave source support seat can drive the wave source along the second direction and the third direction, so that by adjusting the position of the wave source and the waveguide component along the second direction and the third direction, the position of the quasi-optical beam emitted by the wave source and the waveguide component incident on the multi-beam focusing mirror can be adjusted, so that the quasi-optical beam can be incident on the multiple reflective mirror centers on the multi-beam focusing mirror in sequence; and the antenna support seat can drive the horn antenna to move along the first direction, the second direction and the third direction, and can drive the horn antenna to rotate along the first axis and the second axis, so that the axis of the horn antenna of the present invention can be parallel to the axis of the quasi-optical beam after being reflected by the multi-beam focusing mirror, and can move along a plane perpendicular to the axis of the quasi-optical beam after being reflected by different reflective mirror surfaces of the multi-beam focusing mirror, so as to collect voltage signals at different positions in the plane, so as to obtain the cross-sectional power energy distribution of the reflected beam according to the voltage signal distribution. The quasi-optical transmission performance test device of the multi-beam focusing mirror of the present invention can realize the test of each reflective mirror surface of the multi-beam focusing mirror through the cooperation of the wave source support seat and the antenna support seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a quasi-optical transmission performance testing device for a multi-beam focusing mirror provided by an embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of a partial structure of a multi-beam focusing mirror quasi-optical transmission performance testing device provided by an embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of a partial structure of a first driving component of a quasi-optical transmission performance testing device for a multi-beam focusing mirror provided by an embodiment of the present invention;

[0032] Figure 4 It is a schematic structural diagram of an antenna support base of a multi-beam focusing mirror quasi-optical transmission performance testing device provided in an embodiment of the present invention.

[0033] In the figure:

[0034] X, first direction; Y, second direction; Z, third direction;

[0035] 1. Wave source;

[0036] 2. Waveguide components;

[0037] 3. Wave source support seat;

[0038] 31. A first drive assembly;

[0039] 311. first base; 312. first driving hand wheel; 313. first transmission assembly;

[0040] 314, first slide rail; 315, second base;

[0041] 32. A second drive assembly;

[0042] 321, second driving hand wheel; 322, second transmission assembly; 323, guide assembly; 324, third base;

[0043] 4. Mounting seat;

[0044] 5. Horn antenna;

[0045] 6. Antenna support base;

[0046] 61. The third drive assembly;

[0047] 611, first motor; 612, third transmission assembly; 6121, second slide rail; 6122, fourth base;

[0048] 62. Fourth drive assembly;

[0049] 621, second motor; 622, fourth transmission assembly; 6221, third slide rail; 6222, fifth base;

[0050] 63. Fifth drive assembly;

[0051] 631, third motor; 632, fifth transmission assembly; 6321, fourth slide rail; 6322, sixth base;

[0052] 64. Sixth drive assembly;

[0053] 641, fourth motor; 642, sixth transmission assembly; 6421, first worm gear; 6422, seventh base;

[0054] 65. Seventh drive assembly;

[0055] 651, fifth motor; 652, seventh transmission assembly; 6521, second worm gear; 6522, eighth base;

[0056] 7. Support platform;

[0057] 8. Controller;

[0058] 100. Multi-beam focusing mirror. DETAILED DESCRIPTION

[0059] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0060] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0062] In the description of this embodiment, the terms "upper", "lower", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0063] like Figure 1-Figure 4As shown, this embodiment provides a multi-beam focusing mirror quasi-optical transmission performance test device, which has a first direction X, a second direction Y and a third direction Z that are perpendicular to each other, and the multi-beam focusing mirror quasi-optical transmission performance test device includes a wave source 1, a waveguide component 2, a wave source support seat 3, a mounting seat 4, a horn antenna 5 and an antenna support seat 6. The mounting seat 4 is used to install the multi-beam focusing mirror 100. The wave source support seat 3 and the mounting seat 4 are arranged at intervals along the first direction X, and the wave source 1 and the waveguide component 2 are both arranged on the wave source support seat 3. The wave source support seat 3 is used to drive the wave source 1 and the waveguide component 2 to move along the second direction Y and the third direction Z. The horn antenna 5 is arranged on the antenna support seat 6, and the antenna support seat 6 can drive the horn antenna 5 to move along the first direction X, the second direction Y and the third direction Z, and can drive the horn antenna 5 to rotate around the first axis and the second axis, the first axis is parallel to the first direction X, and the second axis is perpendicular to the first axis. The wave source 1 in this embodiment is a millimeter wave source.

[0064] The multi-beam focusing mirror quasi-optical transmission performance testing device provided in this embodiment, when testing the multi-beam focusing mirror 100, the multi-beam focusing mirror 100 is installed on the mounting base 4, the wave source 1 and the waveguide component 2 generate a quasi-optical beam, the quasi-optical beam is incident on the multi-beam focusing mirror 100, and the antenna support base 6 drives the horn antenna 5 to move to obtain voltage signals at different positions, so as to obtain the reflected beam cross-sectional power energy distribution according to the voltage signal distribution. In the multi-beam focusing mirror quasi-optical transmission performance test device in this embodiment, the wave source support seat 3 can drive the wave source 1 along the second direction Y and the third direction Z, so that by adjusting the position of the wave source 1 and the waveguide component 2 along the second direction Y and the third direction Z, the position of the quasi-optical beam emitted by the wave source 1 and the waveguide component 2 incident on the multi-beam focusing mirror 100 can be adjusted, so that the quasi-optical beam can be incident on multiple reflective mirror centers on the multi-beam focusing mirror 100 in sequence; and the antenna support seat 6 can drive the horn antenna 5 to move along the first direction X, the second direction Y and the third direction Z, and can drive the horn antenna 5 to rotate along the first axis and the second axis, so that the axis of the horn antenna 5 in this embodiment can be parallel to the axis of the quasi-optical beam after reflection by the multi-beam focusing mirror 100, and can move along a plane perpendicular to the axis of the quasi-optical beam after reflection by different reflective mirrors of the multi-beam focusing mirror 100, so as to collect voltage signals at different positions in the plane, so as to obtain the reflected beam cross-sectional power energy distribution according to the voltage signal distribution. The quasi-optical transmission performance testing device of the multi-beam focusing mirror provided in this embodiment can test each reflective mirror surface of the multi-beam focusing mirror 100 through the cooperation of the wave source support seat 3 and the antenna support seat 6.

[0065] Alternatively, if Figure 1-Figure 4As shown, the third direction Z is the height direction of the multi-beam focusing mirror quasi-optical transmission performance test device. In this embodiment, the third direction Z is the vertical direction, that is, the height direction, and the first direction X and the second direction Y are both horizontal directions. The third direction Z is also the Z direction in the spatial coordinate system, the first direction X is also the X direction in the spatial coordinate system, and the second direction Y is also the Y direction in the spatial coordinate system.

[0066] Alternatively, if Figure 1-Figure 3 As shown, the wave source support seat 3 includes a first drive assembly 31 and a second drive assembly 32. The second drive assembly 32 is arranged on the first drive assembly 31, the wave source 1 and the waveguide assembly 2 are arranged on the second drive assembly 32, the first drive assembly 31 is used to drive the second drive assembly 32 to move along the second direction Y, and the second drive assembly 32 is used to drive the wave source 1 and the waveguide assembly 2 to move along the third direction Z.

[0067] Furthermore, if Figure 1-Figure 3 As shown, the first driving assembly 31 includes a first base 311, a first driving hand wheel 312, a first transmission assembly 313, a first slide rail 314 and a second base 315. The first driving hand wheel 312 is rotatably arranged on the first base 311. The first slide rail 314 is arranged on the first base 311 and extends along the second direction Y. The second base 315 is slidably arranged on the first slide rail 314. The second driving assembly 32 is arranged on the second base 315. The first driving hand wheel 312 is transmission-connected with the second base 315 via the first transmission assembly 313. The first driving hand wheel 312 is used to drive the second base 315 to drive the second driving assembly 32 to slide along the first slide rail 314. In this embodiment, the first transmission assembly 313 is a first ball screw.

[0068] Furthermore, if Figure 1-Figure 3As shown, the second driving component 32 includes a second driving hand wheel 321, a second transmission component 322, a guide component 323 and a third base 324. The guide component 323 is arranged on the second base 315 and extends along the third direction Z. The third base 324 is slidably arranged on the guide component 323. The wave source 1 and the waveguide component 2 are both arranged on the third base 324. The second driving hand wheel 321 is rotatably arranged on the second base 315. The second driving hand wheel 321 is transmission-connected to the third base 324 via the second transmission component 322. The second driving hand wheel 321 is used to drive the third base 324 to drive the wave source 1 and the waveguide component 2 to move along the guide component 323. In this embodiment, the guide assembly 323 includes a plurality of guide rods arranged at intervals, and the second transmission assembly 322 includes a gear group and a second ball screw, both of which are arranged on the first base 311, the second driving handwheel 321 is transmission-connected to the input end of the gear group, the output end of the gear group is transmission-connected to the input end of the second ball screw, the output end of the second ball screw is transmission-connected to the third base 324, the rotation of the second driving handwheel 321 is transmitted to the second ball screw through the gear group, and the second ball screw converts the rotation into linear motion along the third direction Z along the third base 324.

[0069] Alternatively, if Figure 1 and Figure 4 As shown, the antenna support seat 6 includes a third drive assembly 61, a fourth drive assembly 62, a fifth drive assembly 63, a sixth drive assembly 64 and a seventh drive assembly 65. The fourth drive assembly 62 is arranged on the third drive assembly 61, the fifth drive assembly 63 is arranged on the fourth drive assembly 62, the sixth drive assembly 64 is arranged on the fifth drive assembly 63, the seventh drive assembly 65 is arranged on the sixth drive assembly 64, and the horn antenna 5 is arranged on the seventh drive assembly 65. The third drive assembly 61 is used to drive the fourth drive assembly 62 to move along the second direction Y, the fourth drive assembly 62 is used to drive the fifth drive assembly 63 to move along the first direction X, and the fifth drive assembly 63 is used to drive the sixth drive assembly 64 to move along the third direction Z. The sixth drive assembly 64 is used to drive the seventh drive assembly 65 to rotate around the first axis, and the seventh drive assembly 65 is used to drive the horn antenna 5 to rotate around the second axis.

[0070] Furthermore, if Figure 1 and Figure 4As shown, the third drive assembly 61 includes a first motor 611 and a third transmission assembly 612, the first motor 611 is transmission-connected to the fourth drive assembly 62 via the third transmission assembly 612, the fourth drive assembly 62 includes a second motor 621 and a fourth transmission assembly 622, the second motor 621 is transmission-connected to the fifth drive assembly 63 via the fourth transmission assembly 622, the fifth drive assembly 63 includes a third motor 631 and a fifth transmission assembly 632, the third motor 631 is transmission-connected to the sixth drive assembly 64 via the fifth transmission assembly 632, the sixth drive assembly 64 includes a fourth motor 641 and a sixth transmission assembly 642, the fourth motor 641 is transmission-connected to the seventh drive assembly 65 via the sixth transmission assembly 642, the seventh drive assembly 65 includes a fifth motor 651 and a seventh transmission assembly 652, and the fifth motor 651 is transmission-connected to the horn antenna 5 via the seventh transmission assembly 652.

[0071] Furthermore, if Figure 1 and Figure 4 As shown, the third transmission assembly 612 includes a second slide rail 6121, a fourth base 6122 and a third ball screw. The second slide rail 6121 extends along the second direction Y, and the fourth base 6122 is slidably set on the second slide rail 6121. The first motor 611 is transmission-connected to the input end of the third ball screw, and the output end of the third ball screw is connected to the fourth base 6122. The first motor 611 can drive the fourth base 6122 to move along the second slide rail 6121 through the third ball screw, thereby realizing the movement of the horn antenna 5 along the second direction Y.

[0072] The fourth transmission assembly 622 includes a third slide rail 6221, a fifth base 6222 and a fourth ball screw. The second motor 621 and the third slide rail 6221 are arranged on the fourth base 6122. The fifth base 6222 is slidably arranged on the third slide rail 6221. The second motor 621 is transmission-connected to the input end of the fourth ball screw. The output end of the fourth ball screw is connected to the fifth base 6222. The second motor 621 can drive the fifth base 6222 to move along the third slide rail 6221 through the fourth ball screw, thereby realizing the movement of the horn antenna 5 along the first direction X.

[0073] The fifth transmission assembly 632 includes a fourth slide rail 6321, a sixth base 6322 and a fifth ball screw. The third motor 631 and the fourth slide rail 6321 are arranged on the fifth base 6222. The sixth base 6322 is slidably arranged on the fourth slide rail 6321. The third motor 631 is transmission-connected to the input end of the fifth ball screw. The output end of the fifth ball screw is connected to the sixth base 6322. The third motor 631 can drive the sixth base 6322 to move along the sixth slide rail through the fifth ball screw, thereby realizing the movement of the horn antenna 5 along the third direction Z.

[0074] The sixth transmission assembly 642 includes a first turbine worm gear 6421 and a seventh base 6422. The fourth motor 641 and the first turbine worm gear 6421 are arranged on the sixth base 6322. The fourth motor 641 is transmission-connected to the input end of the first turbine worm gear 6421. The seventh base 6422 is connected to the output end of the first turbine worm gear 6421. The fourth motor 641 can drive the seventh base 6422 to rotate around the first axis through the first turbine worm gear 6421.

[0075] The seventh transmission assembly 652 includes a second turbine worm gear 6521 and an eighth base 6522. The fifth motor 651 and the second turbine worm gear 6521 are arranged on the seventh base 6422. The fifth motor 651 is transmission-connected to the input end of the second turbine worm gear 6521. The eighth base 6522 is connected to the output end of the second turbine worm gear 6521. The fifth motor 651 can drive the eighth base 6522 to rotate around the second axis through the second turbine worm gear 6521.

[0076] Optionally, the waveguide assembly 2 includes a mode converter, and the mode converter is used to convert the beam emitted by the wave source 1 from the TE10 mode to the HE11 mode. The mode converter in this embodiment is a Taper type mode converter.

[0077] Alternatively, if Figure 1 As shown, the multi-beam focusing mirror quasi-optical transmission performance test device in this embodiment also includes a support platform 7, and the wave source support seat 3, the mounting seat 4 and the antenna support seat 6 are all arranged on the support platform 7. A leveling device is arranged at the bottom of the support platform 7 for leveling the support platform 7.

[0078] Alternatively, if Figure 1 As shown, the multi-beam focusing mirror quasi-optical transmission performance testing device in this embodiment also includes a controller 8, and the first motor 611, the second motor 621, the third motor 631, the fourth motor 641 and the fifth motor 651 are all communicated with the controller 8, that is, the controller 8 controls the movement of the antenna support base 6 to drive the horn antenna 5 to move.

[0079] This embodiment provides a method for testing the quasi-optical transmission performance of a multi-beam focusing mirror, and uses the above-mentioned quasi-optical transmission performance testing device of the multi-beam focusing mirror to test the multi-beam focusing mirror 100, including the following steps:

[0080] S1, installing the multi-beam focusing mirror 100 on the mounting base 4;

[0081] S2. Adjust the positions of the wave source 1 and the waveguide assembly 2 through the wave source support seat 3 so that the quasi-optical beam emitted by the wave source 1 through the waveguide assembly 2 can be transmitted to the center of one of the reflective mirrors on the multi-beam focusing mirror 100; drive the horn antenna 5 to rotate around the first axis and / or the second axis through the antenna support seat 6 so that the axis of the horn antenna 5 is parallel to the third axis, and the third axis is the axis of the quasi-optical beam after being reflected by the multi-beam focusing mirror 100;

[0082] S3, the wave source 1 emits a quasi-optical beam through the waveguide assembly 2, and drives the horn antenna 5 to move in a plane perpendicular to the third axis through the antenna support base 6;

[0083] S4, adjusting the positions of the wave source 1 and the waveguide assembly 2 through the wave source support seat 3, so that the wave source 1 can be transmitted to the center of another reflective mirror surface on the multi-beam focusing mirror 100 through the waveguide assembly 2;

[0084] S5. The wave source 1 emits a quasi-optical beam through the waveguide component 2, and drives the horn antenna 5 to move along the first direction X, the second direction Y and / or the third direction Z through the antenna support seat 6, so that the horn antenna 5 moves in a plane perpendicular to the third axis to collect voltage signals at different positions in the plane perpendicular to the third axis, so as to obtain the power energy distribution of the reflected beam cross section according to the voltage signal distribution. For example, when the plane perpendicular to the third axis is parallel to the first direction X and the second direction Y, the horn antenna 5 only needs to move along the first direction X and the second direction Y to realize the movement of the horn antenna 5 in the plane perpendicular to the third axis, and when the plane perpendicular to the third axis is not parallel to the first direction X, the second direction Y and the third direction Z, the horn antenna 5 needs to move along the first direction X, the second direction Y and the third direction Z to realize the movement of the horn antenna 5 in the plane perpendicular to the third axis.

[0085] S6. Repeat step S4 and step S5 to test the centers of the remaining reflective mirror surfaces on the multi-beam focusing mirror 100 respectively.

[0086] The quasi-optical transmission performance testing method of the multi-beam focusing mirror in this embodiment realizes the testing of the quasi-optical transmission performance of the centers of each reflecting mirror surface of the multi-beam focusing mirror 100 through the cooperation of the wave source support seat 3 and the antenna support seat 6.

[0087] It will be understood by those skilled in the art that, when the specific design parameters of the multi-beam focusing mirror 100 are known, after the multi-beam focusing mirror 100 is fixed to the mounting base 4, the specific positions of the centers of the various reflective mirror surfaces of the multi-beam focusing mirror 100 are determined, and when the positions of the wave source 1 and the waveguide assembly 2 are adjusted by the wave source support base 3, the positions of the wave source 1 and the waveguide assembly 2 can be adjusted according to the positions of the centers of the reflective mirror surfaces of the multi-beam focusing mirror 100 so that the quasi-optical beam is irradiated toward the center of the reflective mirror surface to be tested.

[0088] When the horn antenna 5 is driven to rotate around the first axis and / or the second axis through the antenna support seat 6 so that the axis of the horn antenna 5 is parallel to the third axis, a laser pointer can be used as an auxiliary tool, and the laser pointer is fixed on the wave source support seat 3, so that the laser pointer is located on the side of the waveguide component 2 close to the mounting seat 4, and the laser pointer is coaxial with the waveguide component 2. Visible laser is emitted to the multi-beam focusing mirror 100 through the laser pointer. The visible laser is reflected by the focusing mirror, and the horn antenna 5 is adjusted with reference to the reflected visible laser. By measuring the angle between the reflected visible laser and a reference plane on the horn antenna 5, it can be determined whether the horn antenna 5 is parallel to the third axis.

[0089] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-beam focusing mirror quasi-optical transmission performance test device, having a first direction (X), a second direction (Y) and a third direction (Z) which are perpendicular to each other, characterized in that: It comprises a wave source (1), a waveguide assembly (2), a wave source support seat (3), a mounting seat (4), a horn antenna (5) and an antenna support seat (6); The mounting seat (4) is used to mount the multi-beam focusing mirror (100); The wave source support seat (3) and the mounting seat (4) are arranged at intervals along the first direction (X), the wave source (1) and the waveguide component (2) are both arranged on the wave source support seat (3), and the wave source support seat (3) is used to drive the wave source (1) and the waveguide component (2) to move along the second direction (Y) and the third direction (Z); The horn antenna (5) is arranged on the antenna support base (6), and the antenna support base (6) can drive the horn antenna (5) to move along the first direction (X), the second direction (Y) and the third direction (Z), and can drive the horn antenna (5) to rotate around a first axis and a second axis, the first axis is parallel to the first direction (X), and the second axis is perpendicular to the first axis.

2. The multi-beam focusing mirror quasi-optical transmission performance test device according to claim 1, characterized in that: The third direction (Z) is the height direction of the multi-beam focusing mirror quasi-optical transmission performance testing device.

3. The multi-beam focusing mirror quasi-optical transmission performance testing device according to claim 2, characterized in that: The wave source support seat (3) comprises a first drive assembly (31) and a second drive assembly (32); The second driving component (32) is arranged on the first driving component (31), the wave source (1) and the waveguide component (2) are arranged on the second driving component (32), the first driving component (31) is used to drive the second driving component (32) to move along the second direction (Y), and the second driving component (32) is used to drive the wave source (1) and the waveguide component (2) to move along the third direction (Z).

4. The multi-beam focusing mirror quasi-optical transmission performance test device according to claim 3, characterized in that: The first driving component (31) comprises a first base (311), a first driving hand wheel (312), a first transmission component (313), a first slide rail (314) and a second base (315); the first driving hand wheel (312) is rotatably arranged on the first base (311); the first slide rail (314) is arranged on the first base (311) and extends along the second direction (Y); the second base (315) is slidably arranged on the first slide rail (314); the second driving component (32) is arranged on the second base (315); the first driving hand wheel (312) is transmission-connected to the second base (315) via the first transmission component (313); the first driving hand wheel (312) is used to drive the second base (315) to drive the second driving component (32) to slide along the first slide rail (314).

5. The multi-beam focusing mirror quasi-optical transmission performance testing device according to claim 4, characterized in that: The second driving component (32) comprises a second driving hand wheel (321), a second transmission component (322), a guide component (323) and a third base (324); the guide component (323) is arranged on the second base (315) and extends along the third direction (Z); the third base (324) is slidably arranged on the guide component (323); the wave source (1) and the waveguide component (2) are both arranged on the third base (324); the second driving hand wheel (321) is rotatably arranged on the second base (315); the second driving hand wheel (321) is transmission-connected to the third base (324) via the second transmission component (322); the second driving hand wheel (321) is used to drive the third base (324) to drive the wave source (1) and the waveguide component (2) to move along the guide component (323).

6. The multi-beam focusing mirror quasi-optical transmission performance test device according to claim 1, characterized in that: The antenna support seat (6) comprises a third driving assembly (61), a fourth driving assembly (62), a fifth driving assembly (63), a sixth driving assembly (64) and a seventh driving assembly (65); The fourth drive assembly (62) is arranged on the third drive assembly (61), the fifth drive assembly (63) is arranged on the fourth drive assembly (62), the sixth drive assembly (64) is arranged on the fifth drive assembly (63), and the seventh drive assembly (65) is arranged on the sixth drive assembly (64); The third driving assembly (61) is used to drive the fourth driving assembly (62) to move along the second direction (Y), the fourth driving assembly (62) is used to drive the fifth driving assembly (63) to move along the first direction (X), the fifth driving assembly (63) is used to drive the sixth driving assembly (64) to move along the third direction (Z), the sixth driving assembly (64) is used to drive the seventh driving assembly (65) to rotate around the first axis, and the seventh driving assembly (65) is used to drive the horn antenna (5) to rotate around the second axis.

7. The multi-beam focusing mirror quasi-optical transmission performance testing device according to claim 6, characterized in that: The third drive assembly (61) comprises a first motor (611) and a third transmission assembly (612); the first motor (611) is transmission-connected to the fourth drive assembly (62) via the third transmission assembly (612); the fourth drive assembly (62) comprises a second motor (621) and a fourth transmission assembly (622); the second motor (621) is transmission-connected to the fifth drive assembly (63) via the fourth transmission assembly (622); the fifth drive assembly (63) comprises a third motor (631) and a fifth transmission assembly (632); The third motor (631) is transmission-connected to the sixth drive assembly (64) via the fifth transmission assembly (632); the sixth drive assembly (64) comprises a fourth motor (641) and a sixth transmission assembly (642); the fourth motor (641) is transmission-connected to the seventh drive assembly (65) via the sixth transmission assembly (642); the seventh drive assembly (65) comprises a fifth motor (651) and a seventh transmission assembly (652); the fifth motor (651) is transmission-connected to the horn antenna (5) via the seventh transmission assembly (652).

8. The multi-beam focusing mirror quasi-optical transmission performance testing device according to claim 1, characterized in that: The waveguide component (2) comprises a mode converter, and the mode converter is used to convert the beam emitted by the wave source (1) from the TE10 mode to the HE11 mode.

9. The multi-beam focusing mirror quasi-optical transmission performance testing device according to claim 1, characterized in that: It also comprises a support platform (7), on which the wave source support seat (3), the mounting seat (4) and the antenna support seat (6) are all arranged.

10. A method for testing the quasi-optical transmission performance of a multi-beam focusing mirror, characterized in that: The quasi-optical transmission performance testing device of the multi-beam focusing mirror according to any one of claims 1 to 9 comprises the following steps: S1, installing the multi-beam focusing mirror (100) on the mounting seat (4); S2, adjusting the positions of the wave source (1) and the waveguide component (2) through the wave source support seat (3) so that the quasi-optical beam emitted by the wave source (1) through the waveguide component (2) can be transmitted to the center of one of the reflective mirror surfaces on the multi-beam focusing mirror (100); driving the horn antenna (5) to rotate around the first axis and / or the second axis through the antenna support seat (6) so that the axis of the horn antenna (5) is parallel to a third axis, and the third axis is the axis of the quasi-optical beam after being reflected by the multi-beam focusing mirror (100); S3, the wave source (1) emits a quasi-optical beam through the waveguide component (2), and drives the horn antenna (5) to move in a plane perpendicular to the third axis through the antenna support seat (6); S4, adjusting the positions of the wave source (1) and the waveguide component (2) through the wave source support seat (3), so that the wave source (1) can be transmitted to the center of another reflective mirror surface on the multi-beam focusing mirror (100) through the waveguide component (2); S5. The wave source (1) emits a quasi-optical beam through the waveguide component (2), and drives the horn antenna (5) to move in a plane perpendicular to the third axis through the antenna support seat (6).

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