Ultra-wideband 5G multi-antenna box

Abstract

The present invention relates to the field of antenna technology, and in particular to an ultra-wideband 5G multi-antenna box. The upper surface and surrounding sides of a three-dimensional bracket are provided with a plurality of antenna assembly areas for fixing antennas. An antenna can be arranged in each antenna assembly area. Each antenna feed point is welded with a radio frequency line. The other end of the radio frequency line is connected to a wireless product terminal. A spring is arranged on a PCB board, and a plurality of antennas are connected to the top of the PCB board through the spring to form a common ground. Compared with the prior art, the ultra-wideband 5G multi-antenna box of the present invention can better meet the isolation requirements between the plurality of antennas by arranging a plurality of antennas on a three-dimensional bracket, and the plurality of antennas are connected to the top of the PCB board through the spring to form a multi-antenna common ground form, and the bandwidth is wider. The three-dimensional bracket can provide space for better planning the layout of each antenna and the line design, which is convenient for assembly, and the multi-antenna common ground can further meet the requirements of miniaturization of the box, making the application scenarios of the antenna box more flexible and extensive.

Description

[Technical field]

[0001] The present invention relates to the field of antenna technology, and in particular to an ultra-wideband 5G multi-antenna box. [Background technology]

[0002] Due to its obvious advantages such as fast transmission speed and low latency, 5G network has been developed and applied on a large scale in China in recent years, and 5G communication products are also increasingly widely used in real life. For example, 5G smartphones, Internet of Vehicles, future driverless cars, Internet of Things and smart cities all need to be built on the foundation of a huge 5G network.

[0003] With the development of 5G car networking and the Internet of Things, the market for 5G products will become extremely broad. Any communication product is inseparable from the antenna unit. An antenna with excellent performance can greatly enhance the product experience and add points to the product. 5G products are multi-antenna designs, so it is very necessary to develop an ultra-wideband 5G multi-antenna box. [Summary of the invention]

[0004] In order to overcome the above problems, the present invention proposes an ultra-wideband 5G multi-antenna box that can effectively solve the above problems.

[0005] A technical solution provided by the present invention to solve the above technical problems is: to provide an ultra-wideband 5G multi-antenna box, including a face shell and a bottom shell, the face shell and the bottom shell are fixedly connected by screws, and an accommodating space is formed between the face shell and the bottom shell, and a three-dimensional bracket, a PCB board and a plurality of radio frequency lines are arranged in the accommodating space, the PCB board is clamped and fixed under the three-dimensional bracket, and one end of the radio frequency line is located between the three-dimensional bracket and the PCB board; a plurality of antenna assembly areas are arranged on the upper surface and the surrounding sides of the three-dimensional bracket for fixing the antenna, and an antenna can be arranged in each antenna assembly area, and a radio frequency line is welded to each antenna feed point, and the other end of the radio frequency line is connected to the wireless product terminal; a spring is arranged on the PCB board, and a plurality of antennas are connected to the PCB board through the spring to form a common ground.

[0006] Preferably, a hollow area is provided in the middle of the three-dimensional bracket, and the plurality of antenna assembly areas are located around the upper end and the side of the hollow area.

[0007] Preferably, the shape and size of the PCB board match the shape and size of the inner side surface of the bottom shell.

[0008] Preferably, a plurality of buckles are arranged around the lower surface of the three-dimensional bracket, and a card slot matching the buckle is arranged around the board body of the PCB board, and the buckle is fixed in the card slot.

[0009] Preferably, a plurality of first positioning grooves are arranged around the three-dimensional bracket, a plurality of second positioning grooves are arranged around the board body of the PCB board, and fixing studs are arranged inside the bottom shell, and the first positioning grooves and the second positioning grooves are matched and connected with the fixing studs respectively.

[0010] Preferably, the plurality of radio frequency wires are integrally formed with a first waterproof plate and a second waterproof plate on the outside, a first waterproof groove and a second waterproof groove are provided on one side between the surface shell and the bottom shell, the first waterproof plate is embedded in the first waterproof groove, and the second waterproof plate is embedded in the second waterproof groove.

[0011] Preferably, a sealing ring is provided at the connection between the surface shell and the bottom shell.

[0012] Preferably, a waterproof rubber ring is sleeved on the inner side of the fixing screws between the surface shell and the bottom shell.

[0013] Preferably, a first fixing groove is provided on the bottom surface of the bottom shell, and a first fixing adhesive layer is provided in the first fixing groove.

[0014] Preferably, two second fixing grooves are arranged inside the first fixing groove, and magnets are arranged inside the second fixing grooves.

[0015] Compared with the prior art, the ultra-wideband 5G multi-antenna box of the present invention sets a plurality of antennas on the three-dimensional bracket by setting a three-dimensional bracket, and the multiple antennas are connected to the top of the PCB board through spring pieces to form a multi-antenna common ground form, which can better meet the isolation requirements between the multiple antennas, and has a wider bandwidth. The three-dimensional bracket can provide space for better planning of the layout and circuit design of each antenna, which is convenient for assembly, and the multi-antenna common ground can further meet the requirements of box miniaturization, making the application scenarios of the antenna box more flexible and extensive. The shape and size of the PCB board match the shape and size of the inner side of the bottom shell, and a larger antenna common ground area is formed as much as possible under the premise of meeting the requirements of box miniaturization, which is conducive to the realization of ultra-wideband.

Brief Description of the Drawings

[0016] Figure 1 This is a first stereoscopic diagram of the overall structure of the ultra-wideband 5G multi-antenna box of the present invention;

[0017] Figure 2 This is a second stereoscopic diagram of the overall structure of the ultra-wideband 5G multi-antenna box of the present invention;

[0018] Figure 3 This is an exploded structural diagram of the ultra-wideband 5G multi-antenna box of the present invention;

[0019] Figure 4 A top view of the three-dimensional support structure of the ultra-wideband 5G multi-antenna box of the present invention;

[0020] Figure 5A side view of the three-dimensional support structure of the ultra-wideband 5G multi-antenna box of the present invention;

[0021] Figure 6 A top view of the PCB board structure of the ultra-wideband 5G multi-antenna box of the present invention;

[0022] Figure 7 This is a diagram of the antenna layer structure of the ultra-wideband 5G multi-antenna box of the present invention;

[0023] Figure 8 This is a three-dimensional diagram of the surface shell of the ultra-wideband 5G multi-antenna box of the present invention. [Specific implementation method]

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] It should be noted that in the embodiments of the present invention, all directional indications (such as up, down, left, right, front, back, etc.) are limited to relative positions on the specified view, rather than absolute positions.

[0026] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] See also Figures 1 to 8The ultra-wideband 5G multi-antenna box of the present invention comprises a face shell 10 and a bottom shell 20, wherein the face shell 10 and the bottom shell 20 are fixedly connected by screws, and a containing space is formed between the face shell 10 and the bottom shell 20, wherein a stereoscopic bracket 30, a PCB board 40 and a plurality of radio frequency lines 50 are arranged in the containing space, wherein the PCB board 40 is fixedly connected under the stereoscopic bracket 30 by snapping, and one end of the radio frequency line 50 is located between the stereoscopic bracket 30 and the PCB board 40. A plurality of antenna assembly areas 31 are arranged on the upper surface and the surrounding sides of the stereoscopic bracket 30 for fixing antennas, wherein one antenna can be arranged in each antenna assembly area 31, and a maximum of 10 antennas can be assembled, and one radio frequency line 50 is welded at each antenna feed point, and the other end of the radio frequency line 50 is connected to the wireless product terminal. The radio frequency line 50 is an impedance line, which can effectively reduce the line length loss. The antenna can be a flexible antenna, an LDS antenna or a CPS antenna. A spring 44 is arranged on the PCB board 40, and the plurality of antennas are connected to the PCB board 40 by top contact through the spring 44 to form a common ground. The PCB board 40 may further be provided with a circuit area 42 , the spring sheet 44 is connected to the circuit area 42 , and the circuit area 42 is connected to each antenna through the spring sheet 44 .

[0028] The face shell 10, bottom shell 20, and stereo bracket 30 are made of plastic. The stereo bracket 30 is in a rectangular ring shape. A hollow area 32 is provided in the middle of the stereo bracket 30. The multiple antenna assembly areas 31 are located around the upper end and side of the hollow area 32. The hollow area 32 can save materials on the one hand, and can be used to meet the isolation requirements between each antenna on the other hand, and can be passed through by the RF line 50 for convenient welding at the antenna feeding point. The stereo bracket 30 provides more surface area for antenna setting, which can meet more antenna routing requirements. The PCB board 40 shares the ground with multiple antennas. Under the premise of meeting the miniaturization of the box, it can achieve broadband coverage of the entire LTE frequency band and all SUB6GHz frequency bands, meeting the use of system equipment and terminal equipment. The ultra-wideband 5G multi-antenna box of the present invention sets a stereoscopic bracket 30, sets multiple antennas on the stereoscopic bracket 30, and the multiple antennas are connected to the PCB board 40 through the spring 44 to form a multi-antenna common ground form, which can better meet the isolation requirements between the multiple antennas, and the bandwidth is wider. The stereoscopic bracket 30 can provide space for better planning the layout and circuit design of each antenna, which is convenient for assembly, and the multi-antenna common ground can further meet the box miniaturization requirements, making the application scenarios of the antenna box more flexible and extensive. The shape and size of the PCB board 40 match the shape and size of the inner side of the bottom shell 20, and a larger antenna common ground area is formed as much as possible under the premise of meeting the box miniaturization requirements, which is conducive to the realization of ultra-wideband.

[0029] A plurality of buckles 33 are arranged around the lower surface of the stereo bracket 30, and a slot 43 matching the buckle 33 is arranged around the body 41 of the PCB board 40. The buckle 33 is fixed to the slot 43 to achieve a fixed connection between the stereo bracket 30 and the PCB board 40, and the assembly is convenient. A plurality of first positioning grooves 35 are arranged around the stereo bracket 30, and a plurality of second positioning grooves 45 are arranged around the body 41 of the PCB board 40. A fixing stud 21 is arranged inside the bottom shell 20, and the first positioning groove 35 and the second positioning groove 45 are matched and connected with the fixing stud 21 respectively, which is conducive to the positioning and installation of the stereo bracket 30 and the PCB board 40, preventing shaking, and ensuring the stability of the antenna position.

[0030] The first waterproof plate 51 and the second waterproof plate 52 are integrally formed on the outside of the multiple radio frequency wires 50. A first waterproof groove 71 and a second waterproof groove 72 are provided on one side between the front shell 10 and the bottom shell 20. The first waterproof plate 51 is embedded in the first waterproof groove 71, and the second waterproof plate 52 is embedded in the second waterproof groove 72, which is beneficial to improving the waterproof performance of the box. A sealing ring is provided at the connection between the front shell 10 and the bottom shell 20, which is beneficial to improving the waterproof performance of the connection. A waterproof rubber ring is sleeved on the inner side of the fixing screw between the front shell 10 and the bottom shell 20, which is beneficial to improving the waterproof performance of the screw fixing.

[0031] The top surface of the housing 10 is provided with a GPS antenna installation area 11 for installing a GPS antenna. The top surface of the housing 10 is provided with a curved surface 12 on the outside to improve the aesthetics.

[0032] The bottom surface of the bottom shell 20 is provided with a first fixing groove 22, and a first fixing adhesive layer is provided in the first fixing groove 22 for pasting and fixing. Two second fixing grooves 23 are provided inside the first fixing groove 22, and magnets are provided in the second fixing grooves 23, which can be fixed to the metal surface by magnetic attraction, thus enriching the fixing methods and improving the convenience of use.

[0033] The antenna includes a copper foil layer 63, a glue layer 64, a PI film layer 65, and a back glue layer 66, wherein the copper foil layer 63, the glue layer 64, the PI film layer 65, and the back glue layer 66 are fixedly connected in sequence from top to bottom. A back glue paper 67 is fixed to the lower surface of the back glue layer 66. A solder resist ink layer 62 is sprayed on the upper surface of the copper foil layer 63. A nickel plating layer 68 is also provided on the upper surface of the copper foil layer 63, and a gold plating layer 69 is provided on the upper surface of the nickel plating layer 68, which becomes the gold finger of the antenna. The thickness of the copper foil layer 63 is 0.018mm. The thickness of the glue layer 64 is 0.02mm. The thickness of the PI film layer 65 is 0.0254mm. The thickness of the back glue layer 66 is 0.05mm. The thickness of the solder resist ink layer 62 is 0.015mm-0.02mm. The thickness of the nickel plating layer 68 is 3μm-8μm. The thickness of the gold-plated layer 69 is 0.0254 μm. The small thickness of each part of the antenna is conducive to miniaturization of the antenna, and is convenient for arranging the antenna on the three-dimensional bracket 30, so as to better meet the isolation requirements between each antenna.

[0034] When in use, an antenna is mounted on the three-dimensional bracket 30 and connected to the wireless product terminal through the radio frequency line 50. In combination with the active state, a circuit distribution effect can be generated to form electromagnetic field radiation.

[0035] Compared with the prior art, the ultra-wideband 5G multi-antenna box of the present invention sets a stereoscopic bracket 30, sets multiple antennas on the stereoscopic bracket 30, and the multiple antennas are connected to the PCB board 40 through the spring 44 to form a multi-antenna common ground form, which can better meet the isolation requirements between multiple antennas, and has a wider bandwidth. The stereoscopic bracket 30 can provide space for better planning of the layout and circuit design of each antenna, which is convenient for assembly, and the multi-antenna common ground can further meet the box miniaturization requirements, making the application scenarios of the antenna box more flexible and extensive. The shape and size of the PCB board 40 match the shape and size of the inner side of the bottom shell 20, and a larger antenna common ground area is formed as much as possible under the premise of meeting the box miniaturization requirements, which is conducive to the realization of ultra-wideband.

[0036] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any modifications, equivalent substitutions and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.

Claims

1. Ultra-wideband 5G multi-antenna box, characterized by: It includes a front shell and a bottom shell, wherein the front shell and the bottom shell are fixedly connected by screws, and an accommodation space is formed between the front shell and the bottom shell, and a three-dimensional bracket, a PCB board and a plurality of radio frequency lines are arranged in the accommodation space, and the PCB board is clamped and fixed under the three-dimensional bracket, and one end of the radio frequency line is located between the three-dimensional bracket and the PCB board; The upper surface and surrounding sides of the three-dimensional bracket are provided with a plurality of antenna assembly areas for fixing antennas. An antenna can be arranged in each antenna assembly area. A radio frequency line is welded to each antenna feed point, and the other end of the radio frequency line is connected to a wireless product terminal. The PCB is provided with springs, and the multiple antennas are connected to the PCB through the springs to form a common ground; The shape and size of the PCB board match the shape and size of the inner side of the bottom shell; The first waterproof plate and the second waterproof plate are integrally formed on the outside of the plurality of radio frequency lines, and a first waterproof groove and a second waterproof groove are provided on one side between the surface shell and the bottom shell, the first waterproof plate is embedded in the first waterproof groove, and the second waterproof plate is embedded in the second waterproof groove; A sealing ring is arranged at the connection between the surface shell and the bottom shell; a waterproof rubber ring is sleeved on the inner side of the fixing screw between the surface shell and the bottom shell.

2. The ultra-wideband 5G multi-antenna box according to claim 1, characterized in that: A hollow area is provided in the middle of the three-dimensional support, and the plurality of antenna assembly areas are located around the upper end and the side of the hollow area.

3. The ultra-wideband 5G multi-antenna box according to claim 1, characterized in that: A plurality of buckles are arranged around the lower surface of the three-dimensional bracket, and a card slot matching the buckle is arranged around the board body of the PCB board, and the buckle is fixed in the card slot.

4. The ultra-wideband 5G multi-antenna box according to claim 1, characterized in that: A plurality of first positioning grooves are arranged around the three-dimensional bracket, a plurality of second positioning grooves are arranged around the plate body of the PCB board, and fixing studs are arranged inside the bottom shell, and the first positioning grooves and the second positioning grooves are matched and connected with the fixing studs respectively.

5. The ultra-wideband 5G multi-antenna box according to claim 1, characterized in that: The bottom surface of the bottom shell is provided with a first fixing groove, and a first fixing adhesive layer is provided in the first fixing groove.

6. The ultra-wideband 5G multi-antenna box according to claim 5, characterized in that: Two second fixing grooves are arranged inside the first fixing groove, and magnets are arranged inside the second fixing grooves.

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