Anti-interference antenna

Abstract

The utility model discloses an anti-interference antenna, which comprises an antenna outer cover, an antenna upper cover plate, an antenna lower cover plate and a filter mounting box, and is characterized in that a filter is additionally arranged in the antenna outer cover, adopts a double-channel design, and is provided with two input ports, two output ports and two input ports of an antenna end; the two antenna connectors at the bottom of the antenna can be in direct butt joint, signals outside a working frequency band are filtered, and signal interference outside the working frequency band is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, specifically to an anti-interference antenna. Background Technology

[0002] An antenna is a transducer that converts guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium (usually free space), or vice versa. In wireless equipment, antennas are components used to transmit or receive electromagnetic waves. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic warfare, remote sensing, and radio astronomy—anything that uses electromagnetic waves to transmit information—rely on antennas to function.

[0003] However, existing antennas have the following problems when in use: 1. Traditional antennas adopt a wideband design, and the operating frequency band of the product is wider than the actual usage frequency band. Signals transmitted and received outside the operating frequency band are interference signals, which may interfere with other signals; 2. Most existing antennas are connected to the antenna adjustment bracket by screws, but this fixing method is inconvenient for disassembling and repairing the antenna. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or existing anti-interference antennas, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide an anti-interference antenna. By adding a filter inside the antenna housing, the filter adopts a dual-channel design with two input ports and two output ports. It can be directly connected to the two input ports at the antenna end and the two antenna connectors at the bottom of the antenna to filter signals outside the operating frequency band, effectively reducing signal interference outside the operating frequency band.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] An anti-interference antenna, comprising:

[0009] The antenna body includes an antenna shroud, an upper antenna cover plate mounted on top of the antenna shroud, and a lower antenna cover plate mounted on bottom of the antenna shroud. The antenna shroud is a rectangular tubular structure with openings at both the top and bottom. The antenna is installed inside the antenna shroud. The shape of the upper antenna cover plate matches the shape of the opening at the top of the antenna shroud. The bottom of the upper antenna cover plate is welded to the top of the antenna shroud, sealing the opening at the top of the antenna shroud. The shape of the lower antenna cover plate matches the shape of the opening at the bottom of the antenna shroud. The top of the lower antenna cover plate is welded to the bottom of the antenna shroud. An antenna connector is installed at the bottom of the lower antenna cover plate. Two connectors are symmetrically connected to the bottom of the antenna's lower cover plate. A mounting groove is provided on the side wall of the antenna body near the bottom. A filter mounting box is installed inside the mounting groove. The filter mounting box has an opening on its side. The filter is installed inside the filter mounting box. A filter cover plate is installed at the opening of the filter mounting box to close the opening. Filter connectors are installed at the top and bottom of the filter mounting box. The filter connectors are connected to the filter. The upper filter connector is connected to the antenna inside the antenna housing, and the lower filter connector is connected to the antenna connector.

[0010] As a preferred embodiment of the anti-interference antenna described in this utility model, a fixing block is installed in the middle of the side wall of the antenna shroud. The fixing block has a rectangular structure and its length is less than the length of the antenna shroud.

[0011] As a preferred embodiment of the anti-interference antenna described in this utility model, it further includes a mounting bracket, the side wall of which is provided with a connecting groove, the shape of which is consistent with the shape of the fixing block, the fixing block being located inside the connecting groove, the side wall of the fixing block being flush with the side wall of the mounting bracket, and mounting plates being installed at both the top and bottom of the mounting bracket, the side wall of which is provided with screw holes, and two screw holes being symmetrically provided on each side wall of the mounting plate.

[0012] As a preferred embodiment of the anti-interference antenna described in this utility model, it further includes a limiting component. The limiting component consists of two components symmetrically installed on both sides of the fixing block. Each limiting component includes a fixing frame installed on the side wall of the fixing block, a sliding plate slidably connected inside the fixing frame, a spring installed on one side wall of the sliding plate, and a limiting rod installed on the other side wall of the sliding plate. The other end of the limiting rod extends through the side wall of the fixing frame. A fixing plate is installed on the symmetrical side wall of the mounting bracket. A limiting hole is opened on the side wall of the fixing plate, and the other end of the limiting rod passes through the limiting hole.

[0013] As a preferred embodiment of the anti-interference antenna described in this utility model, it further includes a protective plate located above the antenna cover plate. A second spring is installed at the bottom of the protective plate, with the top end of the second spring connected to the bottom of the protective plate and the bottom end of the second spring connected to the top of the antenna cover plate.

[0014] As a preferred embodiment of the anti-interference antenna described in this utility model, an extension plate is installed on the symmetrical sidewall of the protective plate, the inner wall of the extension plate is attached to the sidewall of the antenna cover, a guide block is installed at the bottom of the inner wall of the extension plate, a guide groove is opened near the top of the symmetrical sidewall of the antenna cover, and the guide block is slidably connected inside the guide groove.

[0015] Compared with existing technologies: By adding a filter inside the antenna housing, the filter adopts a dual-channel design with two input ports and two output ports. It can directly connect to the two input ports at the antenna end and the two antenna connectors at the bottom of the antenna, effectively filtering signals outside the operating frequency band and reducing signal interference outside the operating frequency band. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a structural diagram of an anti-interference antenna according to the present invention.

[0018] Figure 2 This is a structural diagram of an anti-interference antenna component of the present invention;

[0019] Figure 3 This is a structural diagram of an anti-interference antenna component of the present invention;

[0020] Figure 4 This is a structural diagram of an anti-interference antenna component of this utility model. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] This invention provides an anti-interference antenna by adding a filter inside the antenna housing. The filter adopts a dual-channel design with two input ports and two output ports. It can be directly connected to the two input ports at the antenna end and the two antenna connectors at the bottom of the antenna. It filters signals outside the operating frequency band, effectively reducing signal interference outside the operating frequency band.

[0025] Example 1

[0026] Regarding the problem 1 that needs to be solved above: Traditional antennas adopt a wideband design, and the operating frequency band of the product is wider than the actual usage frequency band. Signals transmitted and received outside the operating frequency band are considered interference signals, which may interfere with other signals.

[0027] The solution is as follows: An anti-interference antenna in this embodiment includes an antenna body 100.

[0028] The antenna body 100 includes an antenna cover 110, an antenna top cover 120 mounted on the top of the antenna cover 110, and an antenna bottom cover 130 mounted on the bottom of the antenna cover 110. The antenna cover 110 is a rectangular tubular structure with openings at both the top and bottom. The antenna is installed inside the antenna cover 110. The shape of the antenna top cover 120 is consistent with the shape of the opening at the top of the antenna cover 110. The bottom of the antenna top cover 120 is welded to the top of the antenna cover 110, and the antenna top cover 120 seals the opening at the top of the antenna cover 110. The shape of the antenna bottom cover 130 is consistent with the bottom of the antenna cover 110. The openings are identical in shape. The top of the antenna lower cover 130 is welded to the bottom of the antenna outer cover 110. Antenna connectors 131 are installed at the bottom of the antenna lower cover 130. Two antenna connectors 131 are symmetrically connected to the bottom of the antenna lower cover 130. A mounting groove 140 is formed on the side wall of the antenna body 100 near the bottom. A filter mounting box 150 is installed inside the mounting groove 140. The filter mounting box 150 has an opening on its side, and the filter is installed inside the filter mounting box 150. A filter cover 151 is installed at the opening on the side wall of the filter mounting box 150. The opening is sealed. Filter connectors 152 are installed at both the top and bottom of the filter mounting box 150. Filter connectors 152 connect to the filter. The upper filter connector 152 connects to the antenna inside the antenna cover 110, and the lower filter connector 152 connects to the antenna connector 131. The other end of the antenna connector 131 is used for connection to the device. The filter mounting box 150 and the filter cover 151 are fixedly connected by screws to protect and seal the filter. The filter inside the filter mounting box 150 is used to filter signals outside the operating frequency band, effectively reducing signal interference outside the operating frequency band. The filter in this embodiment is a BAW model filter with a dual-channel design, having two input ports and two output ports. It can directly connect to the two input ports at the antenna end and the two antenna connectors at the bottom of the antenna. All filter connectors 152 are female, and the two ends of the filter connector 152 are connected by jumpers. The jumper connectors are male, making installation and connection more convenient. Compared with traditional antenna covers, the antenna cover 110 in this embodiment adopts an extended design, increasing aesthetics.

[0029] Example 2

[0030] Regarding the second problem to be solved above: Most existing antennas are connected to the antenna adjustment bracket by screws, but this fixing method is inconvenient for disassembling and repairing the antenna.

[0031] The solution is as follows: An anti-interference antenna in this embodiment also includes a mounting bracket 200, a limiting component 300, and a protection plate 400.

[0032] A fixing block 160 is installed in the middle of the side wall of the antenna cover 110. The fixing block 160 has a rectangular structure and its length is less than that of the antenna cover 110. A connecting groove 210 is provided on the side wall of the mounting bracket 200. The shape of the connecting groove 210 is the same as that of the fixing block 160. The fixing block 160 is located inside the connecting groove 210. The side wall of the fixing block 160 is flush with the side wall of the mounting bracket 200. Mounting plates 220 are installed at the top and bottom of the mounting bracket 200. The side wall of the mounting plate 220 is provided with screw holes 230. Each mounting plate 220 has screw holes 230 on its side wall. The mounting bracket 200 has two screw holes 230. Two limiting components 300 are symmetrically installed on both sides of the fixing block 160. Each limiting component 300 includes a fixing frame 310 installed on the side wall of the fixing block 160, a sliding plate 320 slidably connected inside the fixing frame 310, a spring 330 installed on one side wall of the sliding plate 320, and a limiting rod 340 installed on the other side wall of the sliding plate 320. The other end of the limiting rod 340 extends through the side wall of the fixing frame 310. A fixing plate 240 is symmetrically installed on the side walls of the mounting bracket 200. Limiting holes 25 are provided on the side walls of the fixing plates 240. 0. The other end of the limiting rod 340 passes through the limiting hole 250. When it is necessary to connect the antenna body 100 to the antenna adjustment bracket, first fix the mounting plate 220 and the mounting bracket 200 to the antenna adjustment bracket by screwing through the screw hole 230. Pull the sliding plate 320 to move into the fixed frame 310 and compress the spring 330. The limiting rod 340 slides into the fixed frame 310 with the sliding plate 320. At this time, push the fixing block 160 into the connecting groove 210 until the side wall of the fixing block 160 is flush with the side wall of the mounting bracket 200. At this time, release the sliding plate. 320, Spring 330 rebounds and pushes the slide plate 320 and the limiting rod 340 towards the mounting bracket 200. The limiting rod 340 passes through the limiting hole 250 and connects the fixing block 160 to the mounting bracket 200, thereby connecting the antenna body 100 to the antenna adjustment bracket. When the antenna body 100 needs to be disassembled for maintenance, the slide plate 320 is pulled to drive the limiting rod 340 into the fixing frame 310. The limiting rod 340 separates from the limiting hole 250. The antenna cover 110 and the fixing block 160 can then be pulled to separate from the connecting groove 210.

[0033] The protective plate 400 is located above the antenna cover plate 120. A second spring 410 is installed at the bottom of the protective plate 400. The top end of the second spring 410 is connected to the bottom of the protective plate 400, and the bottom end of the second spring 410 is connected to the top of the antenna cover plate 120. An extension plate 420 is installed on the symmetrical sidewalls of the protective plate 400. The inner wall of the extension plate 420 is fitted to the sidewall of the antenna cover 110. A guide block 430 is installed at the bottom of the inner wall of the extension plate 420. A guide groove 1 is formed on the symmetrical sidewalls of the antenna cover 110 near the top. 11. The guide block 430 is slidably connected inside the guide groove 111. During use, when the protective plate 400 is impacted, the protective plate 400 moves towards the antenna cover plate 120 and compresses the second spring 410. The second spring 410 buffers the impact force and prevents the impact force from directly acting on the antenna inside the antenna cover 110, thus preventing damage to the antenna. When the protective plate 400 moves towards the antenna cover plate 120, the guide block 430 slides inside the guide groove 111 to guide the protective plate 400.

[0034] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An anti-interference antenna, characterized in that, include: The antenna body (100) includes an antenna cover (110), an antenna top cover (120) mounted on the top of the antenna cover (110), and an antenna bottom cover (130) mounted on the bottom of the antenna cover (110). The antenna cover (110) is a rectangular tubular structure with openings at both the top and bottom. The antenna is installed inside the antenna cover (110). The shape of the antenna top cover (120) is consistent with the shape of the top opening of the antenna cover (110). The bottom of the antenna top cover (120) is welded to the top of the antenna cover (110), and the antenna top cover (120) seals the top opening of the antenna cover (110). The shape of the antenna bottom cover (130) is consistent with the shape of the bottom opening of the antenna cover (110). The top of the antenna bottom cover (130) is welded to the bottom of the antenna cover (110). An antenna connector (131) is installed at the bottom of the antenna bottom cover (130). Two wire connectors (131) are symmetrically connected to the bottom of the antenna lower cover plate (130). The antenna body (100) has a mounting groove (140) near the bottom of its side wall. A filter mounting box (150) is installed inside the mounting groove (140). The filter mounting box (150) has an opening on its side. The filter is installed inside the filter mounting box (150). A filter cover plate (151) is installed at the opening of the side wall of the filter mounting box (150) to close the opening of the filter mounting box (150). Filter connectors (152) are installed at the top and bottom of the filter mounting box (150). The filter connectors (152) are connected to the filter. The upper filter connector (152) is connected to the antenna inside the antenna cover (110), and the lower filter connector (152) is connected to the antenna connector (131).

2. The anti-interference antenna according to claim 1, characterized in that, A fixing block (160) is installed in the middle of the side wall of the antenna cover (110). The fixing block (160) has a rectangular structure and its length is less than that of the antenna cover (110).

3. The anti-interference antenna according to claim 2, characterized in that, It also includes a mounting bracket (200), the mounting bracket (200) having a connecting groove (210) on its side wall, the connecting groove (210) having the same shape as the fixing block (160), the fixing block (160) being located inside the connecting groove (210), the side wall of the fixing block (160) being flush with the side wall of the mounting bracket (200), the mounting bracket (200) having mounting plates (220) installed at both the top and bottom, the mounting plates (220) having screw holes (230) on their side walls, each mounting plate (220) having two screw holes (230) symmetrically arranged on its side wall.

4. An anti-interference antenna according to claim 3, characterized in that, It also includes limiting components (300), two of which are symmetrically installed on both sides of the fixing block (160). Each limiting component (300) includes a fixing frame (310) installed on the side wall of the fixing block (160), a sliding plate (320) slidably connected inside the fixing frame (310), a spring (330) installed on one side wall of the sliding plate (320), and a limiting rod (340) installed on the other side wall of the sliding plate (320). The other end of the limiting rod (340) extends through the side wall of the fixing frame (310). The mounting bracket (200) has a fixing plate (240) installed on its symmetrical side wall. The side wall of the fixing plate (240) has a limiting hole (250), and the other end of the limiting rod (340) extends through the limiting hole (250).

5. An anti-interference antenna according to claim 4, characterized in that, It also includes a protective plate (400) located above the antenna cover plate (120). A second spring (410) is installed at the bottom of the protective plate (400). The top end of the second spring (410) is connected to the bottom of the protective plate (400), and the bottom end of the second spring (410) is connected to the top of the antenna cover plate (120).

6. An anti-interference antenna according to claim 5, characterized in that, An extension plate (420) is installed on the symmetrical sidewall of the protective plate (400). The inner wall of the extension plate (420) is attached to the sidewall of the antenna cover (110). A guide block (430) is installed at the bottom of the inner wall of the extension plate (420). A guide groove (111) is opened on the symmetrical sidewall of the antenna cover (110) near the top. The guide block (430) is slidably connected inside the guide groove (111).

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