Fixing and switching device of three-frequency-band feed source

Abstract

The invention discloses a fixing and switching device for a three-frequency-band feed source, which relates to the field of communication and interception antennas and comprises a C feed source, a C feed source fixing mechanism, a Ka / Ku feed source, a Ka / Ku feed source fixing mechanism, a main surface, an auxiliary surface supporting rod, an auxiliary surface switching mechanism, a C feed source auxiliary surface, a KaKu feed source auxiliary surface, a turnover motor group and a coded disc. The side face of the Ka / Ku feed source fixing mechanism is fixedly connected to the C feed source fixing mechanism, the main face is fixed to the bottom of the C feed source fixing mechanism, the bottom of the auxiliary face supporting rod is connected with the main face, the top of the auxiliary face supporting rod is connected with the auxiliary face switching mechanism, one end of the switching mechanism is connected with the overturning motor set, and the other end of the switching mechanism is connected with the coded disc. In the working process, the feed sources do not need to be switched in a rotating mode, only the auxiliary face switching structure is driven by the overturning motor set to switch the auxiliary faces corresponding to the different feed sources, the feed switching efficiency is improved, and errors caused by feed source rotating feed switching are reduced.

Description

Technical Field

[0001] The invention relates to the field of communication and detection antennas, in particular to a fixed switching device for C, Ka / Ku three-band feed sources and sub-surfaces. Background Art

[0002] With the development of satellite communication technology, there is an increasing demand for antenna multi-band sharing. In order to enable antenna products to have the ability to share the three-band C, Ka / Ku, it is required to use a fixed switching device for the three-band feed and sub-surface, and the design should be simplified as much as possible to avoid excessive complexity in switching and to control the weight. In actual use, by fixing the Ka / Ku feed to one side of the C feed at a certain angle, the drive motor group drives the sub-surface to rotate and switch, and the feed does not need to be switched, so as to achieve the effect of fast feed switching. Summary of the invention

[0003] The technical problem solved by the present invention is to solve the problem of fixed switching of antenna C, Ka / Ku three-band feed and sub-surface, and the driving motor group drives the sub-surface to rotate and switch to ensure use on the antenna.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A three-band feed fixing and switching device comprises a main surface (5), a sub-surface (8) and a feed, wherein the feed and the sub-surface are each provided with two groups; the feed comprises a C feed (1) and a Ka / Ku feed (3), and the sub-surface comprises a C feed sub-surface (8) and a Ka / Ku feed sub-surface (9);

[0006] A support seat (12) is arranged above the front surface of the main surface, and the support seat is fixedly connected to the main surface through a plurality of sub-surface support rods (6); a sub-surface switching shaft is suspended below the support seat, and the sub-surface switching shaft can rotate around its own central axis; the C feed sub-surface (8) and the Ka / Ku feed sub-surface (9) are respectively installed on opposite sides of the sub-surface switching shaft;

[0007] The C feed (1) and the Ka / Ku feed (3) are both installed between the secondary surface and the primary surface; the C feed (1) and the Ka / Ku feed (3) are both installed at the center of the primary surface; in the C frequency band, the C feed (1) faces the C feed secondary surface (8); in the Ka / Ku frequency band, the Ka / Ku feed (3) faces the Ka / Ku feed secondary surface.

[0008] Furthermore, one end of the secondary surface support rod is fixedly connected to the edge of the primary surface, and the other end is fixed to one side of the support seat; the central axis of the primary surface coincides with the central axis of the support seat.

[0009] Furthermore, two parallel hanging arms are provided on the lower surface of the support seat; the two ends of the secondary surface switching shaft respectively penetrate the corresponding hanging arms and are connected to the corresponding hanging arm bearings.

[0010] Furthermore, a flip motor group is provided on the outer side of one of the booms, and the output end of the flip motor group is connected to one end of the auxiliary surface switching shaft to drive the auxiliary surface switching shaft to rotate around its own central axis.

[0011] Furthermore, a C feed support seat (2) is provided at the center of the main surface, and the C feed is located on the top of the C feed support seat; the Ka / Ku feed is connected to the C feed support seat via a Ka / Ku feed fixing seat (4).

[0012] Furthermore, the Ka / Ku feed has an angle of 0 to 60° with the central axis of the main surface; the wave of the Ka / Ku feed is emitted to the Ka / Ku feed sub-surface and reflected by the Ka / Ku feed sub-surface to the main surface.

[0013] Furthermore, the central axes of both the C feed source and the C feed source secondary surface (8) coincide with the central axis of the main surface.

[0014] Furthermore, a code disc is provided at the other end of the secondary surface switching shaft.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The present invention proposes for the first time in the relevant field an integrated design of the Ka / Ku feed fixing seat and the C feed support seat mechanism. There is no need to move the feed fixing mechanism and the feed, and the driving mechanism is omitted. At the same time, the position accuracy problem caused by feed switching is avoided. The sub-surface switching axis is matched with the switched feed only by flipping the motor group, which simplifies the servo control link, simplifies the structural form, reduces the weight, improves the switching efficiency and reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 for Figure 1 Supplementary schematic diagram of (rotated at a certain angle);

[0019] Figure 3 for Figure 1 A top view of

[0020] In the figure: 1. C feed; 2. C feed support base; 3. Ka / Ku feed; 4. Ka / Ku feed fixing base; 5. Main surface; 6. Sub-surface support rod; 7. Sub-surface switching axis; 8. C feed sub-surface; 9. Ka / Ku feed sub-surface; 10 flip motor group; 11. Code disk. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] A fixing and switching device for a three-band feed source, comprising a C feed source, a C feed source support seat, a Ka / Ku feed source, a Ka / Ku feed source fixing seat, a main surface, a sub-surface support rod, a sub-surface switching shaft, a C feed source sub-surface, a Ka / Ku feed source sub-surface, a flip motor group, and a code disk.

[0023] The device is connected to the antenna mount via a C feed support base.

[0024] The C feed, Ka / Ku feed fixing seat, and main surface are connected to the C feed supporting seat; the Ka / Ku feed is fixed on the Ka / Ku feed fixing seat; the sub-surface support rod is fixed on the main surface; the sub-surface switching shaft is connected to the sub-surface support rod; the C feed sub-surface, Ka / Ku feed sub-surface, flip motor group, and code disk are connected to the sub-surface switching shaft.

[0025] The Ka / Ku feed fixing seat and the C feed supporting seat form an oblique angle, and the Ka / Ku feed sub-surface and the C feed sub-surface fixed on the sub-surface switching axis also form a corresponding angle. These two angles are in a corresponding relationship and can be obtained through calculation.

[0026] The flip motor group can drive the sub-surface switching shaft to drive the C feed sub-surface and the Ka / Ku feed sub-surface to rotate, and the code disk can read the rotation angle. When switching from the C feed to the Ka / Ku feed, the sub-surface switching shaft directly rotates the Ka / Ku feed sub-surface to the position corresponding to its feed source. There is no need to switch the feed source, and the feed switching effect is achieved only by switching the sub-surfaces.

[0027] The Ka / Ku feed fixing seat and the C feed supporting seat are designed as an integrated whole and are fixedly connected to the antenna mount. The Ka / Ku feed fixing seat and the C feed supporting seat only move with the antenna mount, and the relative positions between the two remain unchanged.

[0028] When the feed source is switched, the Ka / Ku feed fixing seat and the C feed supporting seat do not need to be moved, and the sub-surface switching axis is driven by the flipping motor group to flip and switch the sub-surface. After the sub-surface is flipped according to the calculated angle, it just corresponds to the feed source to be switched and can be put into use directly.

[0029] The following is a more specific embodiment:

[0030] Reference Figures 1 to 3 The present embodiment is a fixing and switching device for a three-band feed, comprising a C feed 1, a C feed support base 2, a Ka / Ku feed 3, a Ka / Ku feed fixing base 4, a main surface 5, a sub-surface support rod 6, a sub-surface switching shaft 7, a C feed sub-surface 8, a Ka / Ku feed sub-surface 9, a flip motor group 10, and a code disk 11.

[0031] The entire device is connected to the antenna mount via the C feed support base 2.

[0032] The C feed 1, the Ka / Ku feed fixing seat 4, and the main surface 5 are connected to the C feed support seat 2; the Ka / Ku feed 3 is fixed on the Ka / Ku feed fixing seat 4; the sub-surface support rod 6 is fixed on the main surface 5; the sub-surface switching shaft 7 is connected to the sub-surface support rod 6; the C feed sub-surface 8, the Ka / Ku feed sub-surface 9, the flip motor group 10, and the code disk 11 are connected to the sub-surface switching shaft 7.

[0033] The Ka / Ku feed fixing seat 4 and the C feed supporting seat 2 form an oblique angle, and the Ka / Ku feed sub-surface 9 and the C feed sub-surface 8 fixed on the sub-surface switching axis 7 also form a corresponding angle. These two angles are in a corresponding relationship and can be obtained through calculation.

[0034] The flip motor group 10 can drive the sub-surface switching shaft 7 to drive the C feed sub-surface 8 and the Ka / Ku feed sub-surface 9 to rotate, and the code disk 11 can read the rotation angle. When switching from the C feed source 1 to the Ka / Ku feed source 3, the sub-surface switching shaft 7 directly rotates the Ka / Ku feed sub-surface 9 to the position corresponding to its feed source. There is no need to switch the feed source, and the feed switching effect is achieved only by switching the sub-surfaces.

[0035] The Ka / Ku feed fixing seat 4 and the C feed supporting seat 2 are designed as an integrated whole and are fixedly connected to the antenna mount. The Ka / Ku feed fixing seat 4 and the C feed supporting seat 2 only move with the antenna mount, and the relative positions between the two remain unchanged.

[0036] When the feed source is switched, the Ka / Ku feed fixing seat 4 and the C feed supporting seat 2 do not need to be moved. The sub-surface switching shaft 7 drives the flipping motor group 10 to flip and switch the sub-surface. After the sub-surface is flipped according to the calculated angle, it corresponds exactly to the feed source to be switched and can be put into use directly.

[0037] In actual use, the specific assembly process is as follows:

[0038] 1. Assemble the C feed support seat 2, Ka / Ku feed fixing seat 4, and sub-surface switching shaft 7 respectively;

[0039] 2. Install the C feed 1 on the C feed support 2 and the Ka / Ku feed 3 on the Ka / Ku feed fixing seat 4 respectively;

[0040] 3. Fix the Ka / Ku feed fixing base 4 and the main surface 5 to the C feed supporting base 2 in sequence;

[0041] 4. Fix the secondary surface support rod 6 to the primary surface 5, and fix the secondary surface switching shaft 7 to the secondary surface support rod 6;

[0042] 5. Fix the C sub-surface, KaKu sub-surface, flip motor unit 10 and code disc 11 to the sub-surface switching shaft 7 in sequence.

Claims

1. A fixing and switching device for a three-band feed source, comprising a main surface (5), a secondary surface (8) and a feed source, characterized in that: The feed source and the sub-surface are each provided with two groups; the feed source comprises a C feed source (1) and a Ka / Ku feed source (3), and the sub-surface comprises a C feed sub-surface (8) and a Ka / Ku feed sub-surface (9); A support seat (12) is arranged above the front surface of the main surface, and the support seat is fixedly connected to the main surface through a plurality of sub-surface support rods (6); a sub-surface switching shaft is suspended below the support seat, and the sub-surface switching shaft can rotate around its own central axis; the C feed sub-surface (8) and the Ka / Ku feed sub-surface (9) are respectively installed on opposite sides of the sub-surface switching shaft; The C feed (1) and the Ka / Ku feed (3) are both installed between the secondary surface and the primary surface; the C feed (1) and the Ka / Ku feed (3) are both installed at the center of the primary surface; in the C frequency band, the C feed (1) faces the C feed secondary surface (8); in the Ka / Ku frequency band, the Ka / Ku feed (3) faces the Ka / Ku feed secondary surface.

2. The fixing and switching device of a three-band feed source according to claim 1, characterized in that: One end of the secondary surface support rod is fixedly connected to the edge of the primary surface, and the other end is fixed to one side of the support seat; the central axis of the primary surface coincides with the central axis of the support seat.

3. The fixing and switching device of a three-band feed source according to claim 1, characterized in that: The lower surface of the support seat is provided with two parallel hanging arms; the two ends of the auxiliary surface switching shaft respectively penetrate the corresponding hanging arms and are connected with the corresponding hanging arm bearings.

4. The fixing and switching device of a three-band feed source according to claim 3, characterized in that: A flip motor group is arranged on the outer side of one of the booms, and the output end of the flip motor group is connected to one end of the auxiliary surface switching shaft to drive the auxiliary surface switching shaft to rotate around its own central axis.

5. The fixing and switching device of a three-band feed source according to claim 1, characterized in that: A C feed support seat (2) is provided at the center of the main surface, and the C feed is located on the top of the C feed support seat; the Ka / Ku feed is connected to the C feed support seat via a Ka / Ku feed fixing seat (4).

6. The fixing and switching device of a three-band feed source according to claim 5, characterized in that: The Ka / Ku feed has an angle of 0 to 60 degrees with the central axis of the main surface; the wave of the Ka / Ku feed is emitted to the Ka / Ku feed sub-surface and reflected by the Ka / Ku feed sub-surface to the main surface.

7. The fixing and switching device of a three-band feed source according to claim 5, characterized in that: The central axes of both the C-feed source and the C-feed source secondary surface (8) coincide with the central axis of the main surface.

8. The fixing and switching device of a three-band feed source according to claim 5, characterized in that: A code disc is arranged at the other end of the auxiliary surface switching shaft.

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