Portable antenna linear polarization circular polarization switching mechanism and method

Abstract

The present invention discloses a portable antenna linear polarization circular polarization switching mechanism and method, belonging to the field of antenna technology. The switching mechanism includes: a circular polarizer; a rotating part is movably connected to the bottom of the circular polarizer, and an antenna feed connecting part is movably connected to the top of the circular polarizer; an orthogonal mode coupler is fixedly connected to the end of the rotating part away from the circular polarizer, a high-frequency head connecting waveguide is fixedly connected to the bottom of the orthogonal mode coupler, a first high-frequency head is fixedly connected to the high-frequency head connecting waveguide, an orthogonal mode coupler connector is fixedly connected to the side wall of the orthogonal mode coupler, and a second high-frequency head is connected to the orthogonal mode coupler connector through a high-frequency head connector. In the present invention, the polarization transmission line of the antenna can be rotated ±90° to meet the switching of vertical polarization and horizontal polarization, and the switching of circular polarization left and right can be met at the same time, so as to meet the tracking of multiple satellites by one antenna.

Description

Technical Field

[0001] The invention relates to the technical field of antennas, and in particular to a portable antenna linear polarization circular polarization switching mechanism and method. Background Art

[0002] Currently, most of the manual portable antennas on the market can only be linearly polarized or circularly polarized, ensuring linear polarization of ±90°, or circular polarization switching between left and right rotation, but not both. Summary of the invention

[0003] In order to solve the problems of the prior art, the present invention provides a portable antenna linear polarization circular polarization switching mechanism and method.

[0004] In one aspect, a portable antenna linear polarization circular polarization switching mechanism is provided, the switching mechanism comprising: a circular polarizer;

[0005] The bottom of the circular polarizer is movably connected with a rotating part, and the top of the circular polarizer is movably connected with an antenna feed connector;

[0006] An end of the rotating member away from the circular polarizer is fixedly connected to an orthogonal mode coupler, a high-frequency head connecting waveguide is fixedly connected to the bottom of the orthogonal mode coupler, a first high-frequency head is fixedly connected to the high-frequency head connecting waveguide, an orthogonal mode coupler connector is fixedly connected to the side wall of the orthogonal mode coupler, and a second high-frequency head is connected to the orthogonal mode coupler connector through a high-frequency head connector.

[0007] Furthermore, the rotating member is a barrel-shaped structure;

[0008] The bottom of the circular polarizer is movably connected to the inner bottom of the rotating member;

[0009] A first through hole is provided on the side wall of the rotating member, and a fastener is detachably connected to the outer wall of the rotating member and a positioning plate is fixedly connected to the outer wall of the rotating member. The fastener is located above the first through hole, and the positioning plate is located directly below the first through hole. A rotating handle is fixedly connected to the side wall of the circular polarizer through the first through hole, and the fastener is fixedly connected to the bottom of the antenna feed connector through a fixing member. A limiting device for fixing the rotating handle is provided on the positioning plate.

[0010] Furthermore, a first rotating joint is fixedly connected to the inner bottom of the rotating member, and a second rotating joint is fixedly connected to the bottom of the antenna feed connecting member;

[0011] The bottom and top of the circular polarizer are respectively fixedly connected with a first rotating joint connecting member and a second rotating joint connecting member;

[0012] The first rotary joint connecting member is movably connected to the first rotary joint, and the second rotary joint connecting member is movably connected to the second rotary joint;

[0013] The first through hole corresponds to the position of the first rotation joint connection component, and the rotating handle is fixedly connected to the first rotation joint connection component.

[0014] Furthermore, a second through hole is provided on the side wall of the rotating member;

[0015] The second through hole is vertically arranged downward along the top of the rotating member, and the first through hole is communicated with the bottom of the second through hole.

[0016] Furthermore, the fixing member is a ring-shaped structure; the fastener is an adjustable hoop, comprising two hoop plates, one end of the two hoop plates are hinged, and the other end of the two hoop plates are detachably connected through a locking handle;

[0017] The height of one hoop plate of the fastener is lower than that of the other hoop plate, and a connecting ring is fixedly connected to the top of the higher hoop plate, the connecting ring is fixedly connected to one end of the fixing member, and the other end of the fixing member is fixedly connected to the bottom of the antenna feed connector.

[0018] Furthermore, a side edge is provided on the top side wall of the rotating member, and a collar is placed between the connecting ring and the side edge;

[0019] The outer side wall of the rotating member is also provided with angle scale lines.

[0020] Further, the limiting device comprises: a first positioning pin and a second positioning pin;

[0021] The first positioning pin and the second positioning pin are fixedly connected to the positioning plate;

[0022] The rotating handle is provided with a positioning hole for positioning the first positioning pin and the second positioning pin;

[0023] The rotating angle of the rotating handle between the first positioning pin and the second positioning pin is 45°.

[0024] Furthermore, the switching mechanism further comprises: two waveguide reinforcement members, both of which are L-shaped, and both ends of which are respectively provided with a first bend and a second bend facing the same side;

[0025] The first bends of the two waveguide reinforcements are fixedly connected to the bottom of the orthogonal mode coupler, and the second bends of the two waveguide reinforcements are fixedly connected to the first high-frequency head, and the two first bends are opposite to each other, and the two second bends are opposite to each other;

[0026] The high-frequency head connecting waveguide is located between the two waveguide reinforcement members.

[0027] Furthermore, the switching mechanism further comprises: a handle;

[0028] Grooves are arranged on two opposite side walls of the antenna feed connector, and pressure plates are detachably connected in the grooves. Two ends of the handle are respectively located between the grooves and the pressure plates on both sides.

[0029] On the other hand, a method for switching between linear polarization and circular polarization of a portable antenna is provided, wherein the switching is performed using the aforementioned switching mechanism for linear polarization and circular polarization of a portable antenna, and the method comprises:

[0030] When linear polarization switching is required, the circular polarizer is rotated so that any one of the four ridges of the circular polarizer is parallel or perpendicular to the side end of the flange at the output end of the orthogonal mode coupler, thereby completing the linear polarization switching;

[0031] When vertical and horizontal polarization switching is required, the first high-frequency head and the second high-frequency head are rotated to drive the orthogonal mode coupler, the rotating member and the circular polarizer to rotate ±90°, thereby completing the vertical and horizontal polarization switching;

[0032] When circular polarization switching is required, the circular polarizer is rotated so that any one of the four convex ridges of the circular polarizer forms an angle of 45° with the side end of the flange at the output end of the orthogonal mode coupler, thereby completing the circular polarization switching;

[0033] When the circular polarization needs to be switched between left and right, the orthogonal mode coupler, the rotating member, the first tuner and the second tuner remain stationary, and the circular polarizer is rotated 90° to complete the switching between left and right of the circular polarization.

[0034] The beneficial effect brought about by the technical solution provided by the embodiment of the present invention is: in the present invention, the top of the circular polarizer is rotatably connected to the antenna feed connector, the bottom of the circular polarizer is rotatably connected to the rotating member, and the orthogonal mode coupler, the first high-frequency head and the second high-frequency head are fixedly connected to the bottom of the rotating member, so that the polarization transmission line polarization of the antenna can be rotated by ±90°, satisfying the switching of vertical polarization and horizontal polarization, and can simultaneously satisfy the switching of circular polarization left and right, so as to satisfy one antenna to track multiple satellites. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 It is a structural schematic diagram of a portable antenna linear polarization circular polarization switching mechanism provided by the present invention;

[0037] Figure 2 It is a cross-sectional view of a portable antenna linear polarization and circular polarization switching mechanism provided by the present invention;

[0038] Figure 3 It is a structural schematic diagram of a rotating member provided by the present invention;

[0039] Figure 4 It is a structural schematic diagram of a circular polarizer provided by the present invention;

[0040] Figure 5 It is a structural schematic diagram of a fastener provided by the present invention;

[0041] Figure 6 It is a structural schematic diagram of a waveguide reinforcement provided by the present invention;

[0042] Figure 7 It is a structural schematic diagram of an antenna feed connector provided by the present invention.

[0043] Figure markings: 1-rotating member; 2-circular polarizer; 3-antenna feed connector; 4-first through hole; 5-fastener; 6-positioning plate; 7-rotating handle; 8-fixing member; 9-orthogonal mode coupler; 10-high-frequency head connecting waveguide; 11-first high-frequency head; 12-orthogonal mode coupler connector; 13-high-frequency head connector; 14-second high-frequency head; 15-first rotation joint; 16-second rotation joint; 17-first rotation joint connector; 18-second rotation joint connector; 19-second through hole; 20-connecting ring; 21-side; 22-ring; 23-first positioning pin; 24-second positioning pin; 25-positioning hole; 26-waveguide reinforcement; 27-first bend; 28-second bend; 29-handle; 30-groove; 31-pressing plate; 32-angle scale line. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] See also Figure 1-7A portable antenna linear polarization circular polarization switching mechanism comprises: a rotating part 1, a circular polarizer 2 and an antenna feed connector 3; the rotating part 1 is a barrel-shaped structure, and the inner bottom is fixedly connected to a first rotating joint 15 by screws, the bottom of the antenna feed connector 3 is fixedly connected to a second rotating joint 16 by screws, the bottom and top of the circular polarizer 2 are respectively fixedly connected to a first rotating joint connector 17 and a second rotating joint connector 18 by screws, the first rotating joint connector 17 is movably connected to the first rotating joint 15, and the second rotating joint connector 18 is movably connected to the second rotating joint 16, so that the circular polarizer 2 can rotate 360°. Among them, the first rotation joint 15 and the second rotation joint 16 can both be bearings, the first rotation joint connector 17 and the second rotation joint connector 18 can both be rotating shafts with a fixed plate welded at one end, one end of the outer ring of the first rotation joint 15 and one end of the outer ring of the second rotation joint 16 are respectively fixedly connected to the inner bottom of the rotating part 1 and the bottom of the antenna connector 3, the fixing plates of the first rotation joint connector 17 and the second rotation joint connector 18 are respectively fixedly connected to the bottom and top of the circular polarizer 2, and the ends of the first rotation joint connector 17 and the second rotation joint connector 18 away from the fixed plate are respectively welded to the inner rings of the first rotation joint 15 and the second rotation joint 16, so that the circular polarizer 2 can rotate 360°.

[0046] A first through hole 4 and a second through hole 19 are provided on the side wall of the rotating member 1. The second through hole 19 is provided vertically downward along the top of the rotating member 1, and the first through hole 4 is provided horizontally along the side wall of the rotating member 1. The first through hole 4 is connected to the bottom of the second through hole 19. The first through hole 4 corresponds to the position of the first rotating joint connecting member 17. A rotating handle 7 is fixedly connected to the first rotating joint connecting member 17 through the first through hole 4 by screws. The rotating handle 7 can be rotated at least 90° along the first through hole 4. The outer wall of the rotating member 1 is detachably connected with a fastener 5 and is fixedly connected with a positioning plate 6 by bolts. The fastener 5 is located above the first through hole 4, and the positioning plate 6 is located directly below the first through hole 4. The fastener 5 is an adjustable hoop, including two hoop plates, one end of the two hoop plates is hinged, and the other end is detachably connected by a locking handle. The height of one hoop plate of the fastener 5 is lower than the height of the other hoop plate, and the top of the high hoop plate is fixedly connected with a connecting ring 20 by screws, and an annular fixing member 8 is fixedly connected to the connecting ring 20 by screws, and the other end of the fixing member 8 is fixedly connected to the bottom of the antenna connector 3 by screws; a side edge 21 is provided on the top side wall of the rotating member 1, and a ring 22 is placed between the connecting ring 20 and the side edge 21.

[0047] The positioning plate 6 is provided with a limiting device for fixing the rotating handle 7, and the limiting device includes: a first positioning pin 23 and a second positioning pin 24; the first positioning pin 23 and the second positioning pin 24 are fixedly connected to the positioning plate 6, and the rotating handle 7 is provided with a positioning hole 25 for positioning the first positioning pin 23 and the second positioning pin 24, and the rotating handle 7 rotates at an angle of 45° between the first positioning pin 23 and the second positioning pin 24. The outer side wall of the rotating member 1 is also provided with an angle scale line 32 from -90° to +90°.

[0048] The bottom of the rotating member 1 is fixedly connected with an orthogonal mode coupler 9 by bolts, the bottom of the orthogonal mode coupler 9 is fixedly connected with a high-frequency head connecting waveguide 10 by bolts, the high-frequency head connecting waveguide 10 is fixedly connected with a first high-frequency head 11 by bolts, the side wall of the orthogonal mode coupler 9 is fixedly connected with an orthogonal mode coupler joint 12 by bolts, the orthogonal mode coupler joint 12 is fixedly connected with a high-frequency head connector 13 by bolts, the high-frequency head connector 13 is fixedly connected with a second high-frequency head 14 by bolts, and the orthogonal mode coupler Two waveguide reinforcements 26 are fixedly connected to the bottom of 9, and the waveguide reinforcements 26 are both L-shaped, and the first bends 27 and the second bends 28 facing the same side are respectively provided at both ends. The first bends 27 of the two waveguide reinforcements 26 are fixedly connected to the bottom of the orthogonal mode coupler 9 by bolts, and the second bends 28 of the two waveguide reinforcements 26 are fixedly connected to the first high-frequency head 11 by bolts, and the two first bends 27 are opposite, and the two second bends 28 are opposite, and the high-frequency head connection waveguide 10 is located between the two waveguide reinforcements 26. Grooves 30 are provided on the opposite side walls of the antenna feed connector 3, and bolt holes are provided in the grooves 30. A pressure plate 31 is detachably connected in the grooves 30 by bolts. The two ends of the handle 29 are located in the grooves 30 on both sides, and the pressure plate 31 is pressed by tightening the bolts, so that the handle 29 is fixed to the antenna feed connector 3.

[0049] It should be noted that polarization modes are divided into linear polarization and circular polarization, among which linear polarization has vertical polarization and horizontal polarization. The linear polarization modes have different satellite angles, so linear polarization needs to meet the requirements of polarization of positive and negative 90°; circular polarization is divided into left-hand circular polarization and right-hand circular polarization. When any one of the four raised edges of the circular polarizer is parallel or perpendicular to the side of the flange of the output end of the OMT, the antenna is in a linear polarization state. When any one of the four raised edges of the circular polarizer is at an angle of 45° to the side of the flange of the output end of the OMT, the antenna is in a circular polarization state. When the antenna is in a circular polarization state, rotating the circular polarizer 90° can complete the left-right rotation switching of circular polarization. When any one of the four raised edges of the circular polarizer is parallel or perpendicular to the side of the flange of the output end of the OMT, the antenna is in a linear polarization state. When the antenna is in a linear polarization state, rotating the orthogonal mode coupler 9 by positive and negative 90° can complete the vertical and horizontal polarization switching.

[0050] The complete workflow of the present invention can be as follows: when linear polarization switching is required, the handle 7 is rotated to the position of the first positioning pin 23 and fixed by the first positioning pin 23. At this time, one of the four ridges of the circular polarizer 2 is parallel or perpendicular to the side end of the flange of the output end of the orthogonal mode coupler 9, and the linear polarization switching is completed; when vertical and horizontal polarization switching is required, the handle of the fastener 5 is loosened, the first high-frequency head 11 and the second high-frequency head 14 are rotated, and the orthogonal mode coupler 9, the rotating member 1 and the circular polarizer 2 are driven to rotate ±90°, so that the vertical and horizontal polarization switching can be completed, and the fastener 5 is used to fix after the switching is completed. When circular polarization switching is required, the circular polarizer 2 is rotated to the position of the second positioning pin 24 by rotating the handle 7, and is fixed by the second positioning pin 24 so that one of the four ridges of the circular polarizer 2 forms an angle of 45° with the side end of the flange of the output end of the orthogonal mode coupler 9, and the circular polarization switching is completed. When left-right rotation switching of circular polarization is required, the orthogonal mode coupler 9, the rotating part 1, the first high-frequency head 11 and the second high-frequency head 14 remain stationary, and the circular polarizer 2 is rotated 90° in the direction of the first positioning pin 23 to complete the left-right rotation switching of circular polarization. At this time, the second high-frequency head 14 is in a left-handed state, and the first high-frequency head 11 is in a right-handed state.

[0051] It is worth noting that in the present invention, the top of the circular polarizer is rotatably connected to the antenna feed connector, the bottom of the circular polarizer is rotatably connected to the rotating member, and the orthogonal mode coupler, the first high-frequency head and the second high-frequency head are fixedly connected to the bottom of the rotating member, so that the polarization transmission line polarization of the antenna can be rotated ±90°, which satisfies the switching of vertical polarization and horizontal polarization, and can simultaneously satisfy the switching of circular polarization left and right, so as to satisfy one antenna to track multiple satellites.

[0052] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable antenna linear polarization circular polarization switching mechanism, characterized in that: The switching mechanism comprises: a circular polarizer (2); The bottom of the circular polarizer (2) is movably connected to a rotating part (1), and the top of the circular polarizer (2) is movably connected to an antenna feed connector (3); An orthogonal mode coupler (9) is fixedly connected to one end of the rotating member (1) away from the circular polarizer (2); a high-frequency head connecting waveguide (10) is fixedly connected to the bottom of the orthogonal mode coupler (9); a first high-frequency head (11) is fixedly connected to the high-frequency head connecting waveguide (10); an orthogonal mode coupler connector (12) is fixedly connected to the side wall of the orthogonal mode coupler (9); and a second high-frequency head (14) is connected to the orthogonal mode coupler connector (12) via a high-frequency head connector (13).

2. A portable antenna linear polarization circular polarization switching mechanism according to claim 1, characterized in that: The rotating member (1) is a barrel-shaped structure; The bottom of the circular polarizer (2) is movably connected to the inner bottom of the rotating member (1); A first through hole (4) is provided on the side wall of the rotating member (1); a fastener (5) is detachably connected to the outer wall of the rotating member (1) and a positioning plate (6) is fixedly connected thereto; the fastener (5) is located above the first through hole (4); the positioning plate (6) is located directly below the first through hole (4); a rotating handle (7) is fixedly connected to the side wall of the circular polarizer (2) via the first through hole (4); the fastener (5) is fixedly connected to the bottom of the antenna feed connector (3) via a fixing member (8); and a limiting device for fixing the rotating handle (7) is provided on the positioning plate (6).

3. A portable antenna linear polarization circular polarization switching mechanism according to claim 2, characterized in that: A first rotating joint (15) is fixedly connected to the inner bottom of the rotating member (1), and a second rotating joint (16) is fixedly connected to the bottom of the antenna feed connecting member (3); The bottom and top of the circular polarizer (2) are respectively fixedly connected with a first rotating joint connecting piece (17) and a second rotating joint connecting piece (18); The first rotary joint connecting member (17) is movably connected to the first rotary joint (15), and the second rotary joint connecting member (18) is movably connected to the second rotary joint (16); The first through hole (4) corresponds to the position of the first rotating joint connecting member (17), and the rotating handle (7) is fixedly connected to the first rotating joint connecting member (17).

4. A portable antenna linear polarization circular polarization switching mechanism according to claim 2, characterized in that: A second through hole (19) is also provided on the side wall of the rotating member (1); The second through hole (19) is arranged vertically downward along the top of the rotating member (1), and the first through hole (4) is connected to the bottom of the second through hole (19).

5. A portable antenna linear polarization circular polarization switching mechanism according to claim 2, characterized in that: The fixing member (8) is a ring-shaped structure; the fastener (5) is an adjustable hoop, comprising two hoop plates, one end of the two hoop plates is hinged, and the other end of the two hoop plates is detachably connected via a locking handle; The height of one hoop plate of the fastener (5) is lower than that of the other hoop plate, and a connecting ring (20) is fixedly connected to the top of the hoop plate with a higher height, the connecting ring (20) is fixedly connected to one end of the fixing member (8), and the other end of the fixing member (8) is fixedly connected to the bottom of the antenna feed connector (3).

6. A portable antenna linear polarization circular polarization switching mechanism according to claim 5, characterized in that: A side edge (21) is provided on the top side wall of the rotating member (1), and a sleeve ring (22) is placed between the connecting ring (20) and the side edge (21); The outer side wall of the rotating member (1) is also provided with angle scale lines (32).

7. A portable antenna linear polarization circular polarization switching mechanism according to claim 2, characterized in that: The limiting device comprises: a first positioning pin (23) and a second positioning pin (24); The first positioning pin (23) and the second positioning pin (24) are fixedly connected to the positioning plate (6); The rotating handle (7) is provided with a positioning hole (25) for positioning the first positioning pin (23) and the second positioning pin (24); The rotating angle of the rotating handle (7) between the first positioning pin (23) and the second positioning pin (24) is 45°.

8. The portable antenna linear polarization circular polarization switching mechanism according to claim 2, characterized in that: The switching mechanism further comprises: two waveguide reinforcement members (26), each of the waveguide reinforcement members (26) being L-shaped, with a first bend (27) and a second bend (28) facing the same side being respectively arranged at two ends; The first bends (27) of the two waveguide reinforcement members (26) are fixedly connected to the bottom of the orthogonal mode coupler (9), and the second bends (28) of the two waveguide reinforcement members (26) are fixedly connected to the first tuner (11), and the two first bends (27) are opposite to each other, and the two second bends (28) are opposite to each other; The high-frequency head connecting waveguide (10) is located between the two waveguide reinforcement members (26).

9. The portable antenna linear polarization circular polarization switching mechanism according to claim 1, characterized in that: The switching mechanism further comprises: a handle (29); Grooves (30) are provided on two opposite side walls of the antenna feed connector (3), and a pressure plate (31) is detachably connected in the groove (30). The two ends of the handle (29) are respectively located between the grooves (30) and the pressure plate (31) on both sides.

10. A method for switching between linear polarization and circular polarization of a portable antenna, characterized in that: The portable antenna linear polarization and circular polarization switching mechanism according to any one of claims 1 to 9 is used for switching, and the method comprises: When linear polarization switching is required, the circular polarizer (2) is rotated so that any one of the four ridges of the circular polarizer (2) is parallel or perpendicular to the side end of the flange at the output end of the orthogonal mode coupler (9), thereby completing the linear polarization switching; When vertical and horizontal polarization switching is required, the first high-frequency head (11) and the second high-frequency head (14) are rotated to drive the orthogonal mode coupler (9), the rotating member (1) and the circular polarizer (2) to rotate ±90°, thereby completing the vertical and horizontal polarization switching; When circular polarization switching is required, the circular polarizer (2) is rotated so that any one of the four convex ridges of the circular polarizer (2) forms an angle of 45° with the side end of the flange at the output end of the orthogonal mode coupler (9), thereby completing the circular polarization switching; When the circular polarization needs to be switched between left and right rotation, the orthogonal mode coupler (9), the rotating member (1), the first tuner (11) and the second tuner (14) remain stationary, and the circular polarizer (2) is rotated 90 degrees to complete the switching between left and right rotation of the circular polarization.

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