A dual-frequency satellite antenna device with a switching feed group

Abstract

The present invention discloses a dual-frequency satellite antenna device with a switchable feed group, comprising: a mounting base provided with a guide rail; a feed group movably disposed on the guide rail; and a drive mechanism fixed to the mounting base and driving the feed group to move on the guide rail to achieve frequency band switching. The present invention provides a feed group (several feeds) and uses the drive mechanism to drive the feed group to move. The provision of the guide rail reduces friction between the feed group and the mounting base, thereby achieving the dual-frequency switching function, meeting the dual-frequency requirements of the satellite antenna, covering a wider area, and increasing communication capacity, making the satellite antenna device more economical and practical.

Description

Technical Field

[0001] The present invention belongs to the technical field of satellite communications, and in particular relates to a dual-frequency satellite antenna device with a switched feed group. Background Art

[0002] Currently, single-frequency satellite antennas are widely used in vehicle-mounted satellite antennas, which can only be used for a single band. However, the coverage range of different satellites is different. If only single-frequency satellite antennas are used, there will be some areas without coverage of the satellite, resulting in the antenna being unable to normally establish a satellite link, unable to ensure normal communication, and causing some emergency rescue operations to be hindered. Summary of the Invention

[0003] In order to overcome the above technical defects, the present invention provides a switchable feed group dual-frequency satellite antenna device, which can realize dual-frequency switching.

[0004] In order to solve the above problems, the present invention is implemented according to the following technical solutions:

[0005] A switchable feed group dual-frequency satellite antenna device, comprising:

[0006] A mounting seat, wherein a guide rail is provided on the mounting seat;

[0007] A feed source group is movably arranged on the guide rail;

[0008] The driving mechanism is fixed on the mounting seat and drives the feed source group to move on the guide rail to achieve frequency band switching.

[0009] Compared with the prior art, the beneficial effects of the present invention are: a feed group (several feed sources) is set up, and the feed group is driven to move by a driving mechanism, and the friction between the feed group and the mounting base is reduced by the setting of a guide rail, thereby realizing the function of switching dual frequencies, meeting the use of dual frequencies of satellite antennas, covering a wider area, and at the same time, increasing the communication capacity, making the satellite antenna device more economical and practical.

[0010] As a further improvement of the present invention, the feed source group includes a first feed source and a second feed source arranged side by side.

[0011] As a further improvement of the present invention, the mounting base includes: a square frame and a connecting rod, the connecting rod is connected to two opposite sides of the square frame, and the first feed source and the second feed source are arranged on the sides of the square frame parallel to the connecting rod.

[0012] As a further improvement of the present invention, the driving mechanism includes: an electric push rod, one end of which is fixed to the connecting rod, and the other end of which is connected to the feed source group.

[0013] As a further improvement of the present invention, a gap elimination mechanism is further included, which is fixed to the mounting seat and is used to eliminate the gap generated between the feed group and the guide rail during movement.

[0014] As a further improvement of the present invention, the driving mechanism includes: a driving motor and a screw rod, the screw rod and the driving motor are both fixed on the mounting seat, the input end of the screw rod is connected to the driving motor, and the output end of the screw rod is connected to the feed source group.

[0015] As a further improvement of the present invention, it further includes a screw rod fixing seat, and the screw rod is fixed on the mounting seat through the screw rod fixing seat.

[0016] As a further improvement of the present invention, it further includes a screw rod support seat, and the screw rod is fixed on the mounting seat through the screw rod support seat.

[0017] As a further improvement of the present invention, a coupling is further included, and the coupling is connected between the driving motor and the input end of the screw rod.

[0018] As a further improvement of the present invention, it further includes a fixing plate for setting the feed source group, and the fixing plate is slidably set on the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 A side view of the dual-frequency satellite antenna device of the present invention;

[0021] Figure 2 A top view of the dual-band satellite antenna device according to Example 1;

[0022] Figure 3 This is a schematic diagram of the working state of the dual-frequency satellite antenna device according to Example 1;

[0023] Figure 4 This is a schematic diagram of another working state of the dual-frequency satellite antenna device according to Example 1;

[0024] Figure 5 A top view of the dual-band satellite antenna device described in Example 2;

[0025] Figure 6 This is a schematic diagram of the driving mechanism of the dual-frequency satellite antenna device according to Example 2;

[0026] Figure 7 The figure is a schematic diagram of the partial structure of the dual-frequency satellite antenna device of the present invention.

[0027] Marking instructions: 1. Mounting seat; 11. Guide rail; 12. Square frame; 13. Connecting rod; 2. Feed group; 21. First feed; 22. Second feed; 3. Driving mechanism; 31. Electric push rod; 32. Driving motor; 33. Screw; 34. Screw fixing seat; 35. Screw support seat; 36. Coupling; 37. Nut seat connector; 4. Gap elimination mechanism; 5. Antenna surface assembly; 6. Fixing plate; 7. Slider; 8. Slide plate. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are used only to distinguish the description and should not be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, or electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] Example 1

[0033] This embodiment provides a dual-frequency satellite antenna device with a switching feed group, such as Figure 1 and Figure 2As shown, it includes: a mounting base 1, a feed group 2, a driving mechanism 3 and an antenna surface assembly 5, wherein a guide rail 11 is provided on the mounting base 1, and the feed group 2 is movably provided on the guide rail 11; the driving mechanism 3 is fixed on the mounting base 1 and drives the feed group 2 to move on the guide rail 11; the antenna surface assembly 5 is provided on the mounting base 1, and the content of the antenna surface assembly 5 refers to the prior art.

[0034] In the above embodiment, the feed source group 2 includes a first feed source 21 and a second feed source 22 arranged side by side. The use of two feed sources can realize dual-frequency switching.

[0035] In the above embodiment, if Figure 2 As shown, the mounting base 1 includes: a square frame 12 and a connecting rod 13 , the connecting rod 13 is connected to two opposite sides of the square frame 12 , and the first feed source 21 and the second feed source 22 are arranged on the sides of the square frame 12 parallel to the connecting rod 13 .

[0036] In the above embodiment, if Figure 2 As shown, the driving mechanism 3 includes: an electric push rod 31, the fixed end of the electric push rod 31 is fixed on the connecting rod 13, and the movable end of the electric push rod 31 is connected to the feed group 2. When the length of the electric push rod 31 changes, the position of the first feed 21 and the second feed 22 heads on the mounting base 1 changes.

[0037] In the above embodiment, it further includes: a gap eliminating mechanism 4 connected between the connecting rod 13 and the square frame 12, the gap eliminating mechanism 4 is fixed on the mounting seat 1, and the gap eliminating mechanism 4 can be a gas spring.

[0038] In the above embodiment, a slider 8 and a slide plate 9 are provided on the side of the square frame 12 on which the feed group 2 is installed. The slider 8 is arranged in the guide rail 11 and slides in the guide rail 11. The slider 8 is connected to the slide plate 9. The slide plate 9 is used as the movable end of the electric push rod and for fixing the gap elimination mechanism 4.

[0039] In the above embodiment, a fixed plate 6 is also included for setting the feed group 2. The fixed plate 6 can be slidably set on the guide rail 11. The first feed 21 and the second feed 22 are both fixed on the fixed plate 6, so that the first feed 21 and the second feed 22 maintain synchronous movement.

[0040] Through the arrangement of the above structure, the first feed source 21 and the second feed source 22 can be moved on the mounting base 1 under the drive of the driving mechanism 3, so that the first feed source 21 or the second feed source 22 is located at the focal position of the reflected signal of the reflecting surface, realizing the function of switching dual frequencies, meeting the use of dual frequencies of the satellite antenna, covering a wider area, and at the same time, increasing the communication capacity, making the satellite antenna device more economical and practical.

[0041] Next, this embodiment is further explained in conjunction with the specific implementation process as follows:

[0042] 1. When the extension length of the electric push rod 31 is Figure 3 As shown, the positions of the first feed source 21 and the second feed source 22 on the mounting base 1 are changed, and the first feed source 21 is at the focal position of the reflected signal of the reflecting surface;

[0043] 2. When the extension length of the electric push rod 31 is Figure 4 As shown, the positions of the first feed source 21 and the second feed source 22 on the mounting base 1 are changed, and the second feed source 22 is at the focal position of the reflected signal of the reflecting surface.

[0044] Example 2

[0045] This embodiment provides a dual-frequency satellite antenna device with a switchable feed group, such as Figure 1 and Figure 2 As shown, it includes: a mounting base 1, a feed group 2, a driving mechanism 3 and an antenna surface assembly 5, wherein a guide rail 11 is provided on the mounting base 1, and the feed group 2 is movably provided on the guide rail 11; the driving mechanism 3 is fixed on the mounting base 1 and drives the feed group 2 to move on the guide rail 11; the antenna surface assembly 5 is provided on the mounting base 1, and the content of the antenna surface assembly 5 refers to the prior art.

[0046] In the above embodiment, the feed source group 2 includes a first feed source 21 and a second feed source 22 arranged side by side. The use of two feed sources can realize dual-frequency switching.

[0047] In the above embodiment, if Figure 5 As shown, the mounting base 1 includes: a square frame 12 and a connecting rod 13 , the connecting rod 13 is connected to two opposite sides of the square frame 12 , and the first feed source 21 and the second feed source 22 are arranged on the sides of the square frame 12 parallel to the connecting rod 13 .

[0048] In the above embodiment, if Figure 5 As shown, the driving mechanism 3 includes: a driving motor 32 and a screw rod 33. The screw rod 33 and the driving motor 32 are both fixed on the mounting base 1. The input end of the screw rod 33 is connected to the output shaft of the driving motor 32, and the output end of the screw rod 33 is connected to the feed group 2. The screw rod 33 converts the rotational motion of the driving motor 32 into linear motion of the feed group 2 on the mounting base 1.

[0049] In the above embodiment, if Figure 5 As shown, the driving mechanism 3 further includes a screw fixing seat 34, through which the screw 33 is fixed to the mounting seat 1, for further fixing the screw 33 to prevent it from loosening during operation.

[0050] In the above embodiment, if Figure 5As shown, the driving mechanism 3 further includes a screw support seat 35, through which the screw 33 is fixed to the mounting seat 1, for providing support for the screw 33 to prevent it from loosening during operation.

[0051] In the above embodiment, if Figure 5 As shown, the driving mechanism 3 further includes a coupling 36 , which is connected between the driving motor 32 and the input end of the screw rod 33 .

[0052] In the above embodiment, a slider 8 is provided on the side of the square frame 12 on which the feed group 2 is installed. The slider 8 is provided in the guide rail 11 and slides in the guide rail 11 .

[0053] In the above embodiment, a fixed plate 6 is also included for setting the feed group 2. The fixed plate 6 can be slidably set on the guide rail 11. The first feed source 21 and the second feed source 22 are both fixed on the fixed plate 6, so that the first feed source 21 and the second feed source 22 maintain synchronous movement.

[0054] In the above embodiment, if Figure 5 As shown, the drive mechanism 3 further includes a nut seat connector 37, which is fixed to the fixing plate 6 and is the side in contact with the screw rod 33. The output end of the screw rod 33 is connected to the nut seat connector 37. The specific implementation process is shown in Example 1 and will not be described in detail here.

[0055] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A dual-frequency satellite antenna device with a switchable feed group, characterized in that: include: A mounting seat, wherein a guide rail is provided on the mounting seat; A feed source group is movably arranged on the guide rail; a driving mechanism, fixed to the mounting base and driving the feed group to move on the guide rail to achieve frequency band switching of the feed group; a gap eliminating mechanism, fixed to the mounting seat, for eliminating the gap between the feed group and the guide rail during movement; The feed source group includes a first feed source and a second feed source arranged side by side; The mounting base includes: a square frame and a connecting rod, wherein the connecting rod is connected to two opposite sides of the square frame, and the first feed source and the second feed source are arranged on the sides of the square frame parallel to the connecting rod; The driving mechanism comprises: an electric push rod, one end of which is fixed to the connecting rod, and the other end of which is connected to the feed source group; A gap elimination mechanism, one end of which is connected to the feed group and the other end is connected to the square frame, and is used to eliminate the gap generated between the feed group and the guide rail during movement; It also includes a fixing plate for setting the feed group, and the fixing plate is slidably set on the guide rail.

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