antenna

Abstract

The application discloses an antenna, which comprises a metal strip line assembly and a limiting structure, the metal strip line assembly is arranged between an antenna cover plate and an antenna bottom plate, and the antenna cover plate and the antenna bottom plate press the metal strip line assembly; a feed ring and a power amplifier network connected with the feed ring are arranged on the metal strip line assembly; the metal strip line assembly comprises a fixed carrier plate and a metal strip line, the fixed carrier plate is arranged on one side of the metal strip line close to a filter and is fixedly connected with the metal strip line; the limiting structure is connected with the antenna cover plate or the antenna bottom plate and is used for limiting the fixed carrier plate; a connector comprises an antenna end connector and a power amplifier end connector, one end of the antenna end connector is connected with the filter, and the other end is connected with the metal strip line; one end of the power amplifier end connector is connected with the filter, and the other end is connected with a power amplifier end of a baseband plate. Through the above mode, the application can shorten the signal transmission path, reduce signal loss and prevent the horizontal position of the metal strip line from moving.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an antenna. Background Technology

[0002] Antennas typically consist of a vibrator power divider network, a coupling calibration network, and a filter. Integrating these components into a single design to minimize costs, reduce weight, and shrink product size is one of the key directions in 5G antenna structure technology research and development.

[0003] Current antennas primarily employ a printed circuit board (PCB) antenna structure. The front of the antenna structure features a feed network, while a ceramic filter is soldered to the back. The signal from the power amplifier enters from the back of the PCB, passes through the filter, and then enters the feed network on the front of the PCB before being transmitted. The receiving path is the reverse of the transmitting path. This results in an excessively long signal path, requiring the power amplifier signal to traverse a section of the PCB before reaching the filter, leading to significant signal loss. Designing a lower-profile, lower-loss integrated filter-antenna structure has become a pressing issue in this field. Summary of the Invention

[0004] The purpose of this application is to provide an antenna that can shorten the signal transmission path while making the metal strip wire less prone to displacement during installation.

[0005] This application discloses an antenna, including an antenna cover plate, an antenna base plate, a filter, a connector, and a baseband board. The antenna cover plate and the antenna base plate are correspondingly disposed, and the filter is disposed between the antenna base plate and the baseband board. The antenna further includes a metal strip assembly and a limiting structure. The metal strip assembly is disposed between the antenna cover plate and the antenna base plate, and the antenna cover plate and the antenna base plate press against the metal strip assembly. A feed ring and a power amplifier network connected to the feed ring are disposed on the metal strip assembly. The metal strip assembly includes a fixed carrier plate and a metal strip. The fixed carrier plate is disposed on the side of the metal strip near the filter and is fixedly connected to the metal strip. The limiting structure is connected to the antenna cover plate or the antenna base plate to limit the fixed carrier plate. The connector includes an antenna-end connector and a power amplifier-end connector. One end of the antenna-end connector is connected to the filter, and the other end is connected to the metal strip. One end of the power amplifier-end connector is connected to the filter, and the other end is connected to the power amplifier end of the baseband board.

[0006] Optionally, the limiting structure includes a positioning hole and a fixing post. The positioning hole is disposed on the fixing plate, and the fixing post is disposed on the antenna base plate. The positions of the positioning hole and the fixing post correspond to each other. The fixing post cooperates with the positioning hole to fix the antenna base plate to the fixing plate.

[0007] Optionally, the metal strip assembly further includes an insulating pad, which includes a first insulating pad and a second insulating pad. The first insulating pad is disposed near the antenna cover plate, and the second insulating pad is disposed near the antenna base plate. The metal strip is disposed between the first insulating pad and the second insulating pad. The fixing carrier plate is sandwiched between the metal strip and the second insulating pad. The fixing carrier plate has a first opening corresponding to the end of the antenna connector near the metal strip. The second insulating pad has a second opening corresponding to the first opening. The antenna base plate has a third opening corresponding to the second opening. One end of the antenna connector passes through the third opening, the second opening, and the first opening in sequence, and abuts against the metal strip. The second insulating pad also has a fourth opening corresponding to the fixing post. The fixing post passes through the fourth opening and cooperates with the positioning hole for fixation.

[0008] Optionally, the metal strip assembly further includes a third insulating pad and a fourth insulating pad. The third insulating pad is disposed near the antenna cover plate, and the fourth insulating pad is disposed near the antenna base plate. The metal strip is disposed between the third insulating pad and the fourth insulating pad. The fixing carrier plate is sandwiched between the third insulating pad and the metal strip. The fourth insulating pad has a fifth opening, and the antenna base plate has a sixth opening corresponding to the fifth opening. One end of the antenna connector passes through the fifth opening and the sixth opening in sequence and abuts against the metal strip. The fourth insulating pad also has a seventh opening corresponding to the fixing post, and the fixing post passes through the seventh opening and cooperates with the positioning hole for fixation.

[0009] Optionally, the fixed carrier plate is made of at least one of liquid crystal polymer material, polyimide, and modified polyimide.

[0010] Optionally, the filter is a metal filter; the filter includes a filter body, a first cavity, and a second cavity, the first cavity being located on the side of the filter body closer to the metal strip assembly, and the second cavity being located on the side of the filter body closer to the baseband board; one end of the antenna connector is connected to the first cavity, and the other end is connected to the metal strip assembly; one end of the power amplifier connector is connected to the second cavity, and the other end is connected to the power amplifier end of the baseband board.

[0011] Optionally, one end of the antenna connector and the filter is a petal structure, and the other end is a pin structure. One end of the antenna connector is snapped into the first cavity through the petal structure, and the other end is abutted against the metal strip through the pin structure. Similarly, one end of the power amplifier connector and the filter is a petal structure, and the other end is a pin structure. One end of the power amplifier connector is snapped into the second cavity through the petal structure, and the other end is abutted against the power amplifier end of the baseband board through the pin structure.

[0012] Optionally, the metal strip includes a plurality of feed rings and a power divider network connecting adjacent feed rings. A plurality of recesses are formed directly below the feed rings, and a plurality of protrusions corresponding to the recesses are formed on the back of the antenna base plate. A groove is formed by connecting two rows of adjacent protrusions, and the filter is embedded in the groove.

[0013] Optionally, the antenna further includes a fixing cover plate, which is disposed on the side of the filter away from the antenna base plate and connected to the antenna base plate for pressing the filter.

[0014] Optionally, the antenna further includes a director piece, which is a thin metal sheet, and is disposed on the side of the antenna cover plate away from the metal strip assembly; the two ends of the antenna cover plate extend away from the metal strip assembly to form two fixing parts, the director piece is fixedly connected to the two fixing parts, and the director piece is arranged parallel to the antenna cover plate; the antenna cover plate forms a window corresponding to the position of the feed ring.

[0015] This application improves the antenna by directly connecting the filter to the power amplifier end of the metal strip and baseband board via a connector. The metal strip assembly replaces the original printed circuit board, eliminating the need for the signal to pass through a section of printed circuit board before reaching the filter. This shortens the signal transmission path and reduces signal loss. Furthermore, the metal strip is fixedly mounted on a fixed carrier plate, which is restrained by a limiting structure. This effectively limits the position of the metal strip during installation, preventing it from shifting or deforming due to external factors. This not only ensures the effectiveness of the metal strip as an antenna for signal propagation but also allows for a thinner metal strip with a narrower linewidth, simplifying wiring and saving materials. Attached Figure Description

[0016] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0017] Figure 1 This is a schematic diagram of the antenna according to the first embodiment of this application;

[0018] Figure 2 This is a first exploded view of the metal strip assembly in the first embodiment of this application;

[0019] Figure 3 This is a second exploded view of the metal strip assembly in the first embodiment of this application;

[0020] Figure 4 This is an exploded view of the metal strip assembly, antenna base plate, and fixing cover plate according to the first embodiment of this application;

[0021] Figure 5 This is a schematic diagram of a connector according to yet another embodiment of this application.

[0022] Among them, 10 is the antenna; 200 is the radome; 300 is the metal strip assembly; 301 is the feed ring; 302 is the power divider network; 303 is the boss; 310 is the metal strip; 320 is the insulating pad; 321 is the first insulating pad; 322 is the second insulating pad; 323 is the second opening; 324 is the fourth opening; 325 is the third insulating pad; 326 is the fourth insulating pad; 327 is the fifth opening; 328 is the sixth opening; 329 is the seventh opening; 330 is the fixing plate; 331 is the positioning hole; 332 is the first opening; 340 is the limiting structure; 4 00, Filter; 401, Filter body; 450, Low-pass connector; 410, First cavity; 420, Second cavity; 430, Antenna connector; 440, Power amplifier connector; 431, Petal structure; 441, Pin structure; 460, Connector; 500, Baseband board; 600, Antenna cover; 610, Fixing part; 700, Antenna base plate; 701, Fixing post; 702, Third opening; 710, Fixing cover; 711, Recess; 720, Groove; 730, Conductive cotton; 800, Leading piece; 810, Through slot. Detailed Implementation

[0023] It should be understood that the terminology, specific structural and functional details used herein are merely for describing particular embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.

[0024] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. Therefore, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0025] In addition, terms such as “center,” “horizontal,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” that indicate orientation or positional relationship are based on the orientation or relative positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments.

[0028] Figure 1 This is a schematic diagram of the antenna according to the first embodiment of this application, as shown below. Figure 1As shown, this application discloses an antenna 10, including an antenna cover plate 600, an antenna base plate 700, a filter 400, a connector 460, and a baseband board 500. The antenna cover plate 600 and the antenna base plate 700 are correspondingly disposed, and the filter 400 is disposed between the antenna base plate 700 and the baseband board 500. The antenna 10 also includes a metal strip assembly 300 and a limiting structure 340. The metal strip assembly 300 is disposed between the antenna cover plate 600 and the antenna base plate 700, and the antenna cover plate 600 and the antenna base plate 700 press the metal strip assembly 300 together. A feed ring 301 and a connector are disposed on the metal strip assembly 300. The power amplifier network 302 of the feed ring 301; the metal strip assembly 300 includes a fixed carrier plate 330 and a metal strip 310, the fixed carrier plate 330 is disposed on the side of the metal strip 310 near the filter 400 and is fixedly connected to the metal strip 310; the limiting structure 340 is used to limit the fixed carrier plate 330; the connector 460 includes an antenna end connector 430 and a power amplifier end connector 440, one end of the antenna end connector 430 is connected to the filter 400 and the other end is connected to the metal strip 310, one end of the power amplifier end connector 440 is connected to the filter 400 and the other end is connected to the power amplifier end of the baseband board 500.

[0029] This application directly connects the filter 400 to the power amplifier terminals of the metal strip 310 and the baseband board 500 via connector 460. The metal strip assembly 300 replaces the previously required printed circuit board, eliminating the need for the signal to pass through a section of printed circuit board before reaching the filter. This shortens the signal transmission path and reduces signal loss. Furthermore, the metal strip 310 can be bonded to the fixed carrier board 330 using adhesive, thus fixing the metal strip 310 to the fixed carrier board 330. The limiting structure 340 is used to limit the position of the metal strip 310 during installation. The fixed carrier plate 330 effectively limits the position of the metal strip 310, preventing it from moving horizontally and from deforming due to external factors. This not only ensures the signal propagation effect of the metal strip 310 as an antenna, but also allows the metal strip 310 to be made thinner and narrower, making wiring easier and saving materials.

[0030] like Figure 1As shown, the filter 400 in this application is a ceramic filter; the filter 400 includes a filter body 401, a first cavity 410 and a second cavity 420. The first cavity 410 is located on the side of the filter body 401 near the metal strip assembly 300, and the second cavity 420 is located on the side of the filter body 401 near the baseband board 500; one end of the antenna connector 430 is connected to the first cavity 410 and the other end is connected to the metal strip assembly 300; one end of the power amplifier connector 440 is connected to the second cavity 420 and the other end is connected to the power amplifier end of the baseband board 500.

[0031] This application improves the antenna 10. The first cavity 410 of the filter 400 can be directly connected to the metal strip assembly 300 through the antenna connector 430, while the second cavity 420 of the filter 400 is directly connected to the power amplifier end of the baseband board 500 through the power amplifier connector 440. By using the metal strip assembly 300 to replace the originally required printed circuit board, and in conjunction with the improved design of the first cavity 410 and the second cavity 420, the following improvements are made:

[0032] By placing the first cavity 410 of the filter 400 on the side of the filter 400 near the metal strip assembly 300 and directly connecting it to the metal strip assembly 300, the signal transmission does not need to go through an additional section of the printed circuit board. The second cavity 420 of the filter 400 is placed on the side of the filter 400 near the baseband board 500 and directly connected to the baseband board 500, without needing to go through an additional section of the printed circuit board, thus shortening the signal transmission path and reducing signal loss.

[0033] In this application, the filter 400 is provided with multiple cavities. The first cavity 410 and the second cavity 420 are the first cavity and the last cavity of the multiple cavities, respectively. Of course, it is also possible for the first cavity 410 to be the last cavity and the second cavity 420 to be the first cavity.

[0034] Figure 2 This is a first exploded view of the metal strip assembly in the first embodiment of this application;

[0035] Figure 2 Combination Figure 1 As shown, specifically, the limiting structure 340 includes a positioning hole 331 and a fixing post 701. The positioning hole 331 is disposed on the fixing carrier plate 330, and the fixing post 701 is disposed on the antenna base plate 700. The positions of the positioning hole 331 and the fixing post 701 correspond; and the fixing post 701 cooperates with the positioning hole 331 to fix the antenna base plate 700 and the fixing carrier plate 330.

[0036] The antenna cover plate 600 in this application is made of thin aluminum sheet by stamping, and the metal strip assembly 300 is accommodated through the space formed between the antenna cover plate 600 and the antenna base plate 700. With this design, the metal strip assembly 300 can be fixed without welding through the antenna cover plate 600 and the antenna base plate 700. Of course, other fixing methods are also possible.

[0037] In addition, the design of the antenna base plate 700 and the antenna cover plate 600 can prevent the metal strip assembly 300 from shaking due to external factors during long-term use of the antenna 10, thus preventing the metal strip assembly 300 from shifting or falling off. This also avoids the antenna end connector 430 from having a loose connection or failing to connect properly when connected to the metal strip assembly 300. Furthermore, it improves the stability of the connection between the antenna end filter 400 and the metal strip assembly 300, ensuring the stability of signal transmission.

[0038] Because a positioning hole 331 is provided on the fixed carrier plate 330, and a fixing post 701 is provided on the antenna base plate 700 to cooperate with and fix the positioning hole 331, when installing the fixed carrier plate 330 onto the antenna base plate 700, it is only necessary to align the positioning hole 331 with the position of the fixing post 701 so that the fixing post 701 can be inserted into the positioning hole 331, thus confining the fixing post 701 within the positioning hole 331. At the same time, the positioning hole 331 plays a good positioning and guiding role, so that the installation between the fixed carrier plate 330 and the antenna base plate 700 can be quickly realized. In addition, through the cooperation and fixation between the positioning hole 331 and the fixing post 701, the fixed carrier plate 330 is not easy to move relative to the antenna base plate 700, thus ensuring the stability of the antenna 10.

[0039] The positioning hole 331 in this application can be a through hole that passes through the fixing plate 330, through which the fixing posts 701 are fixedly connected. Alternatively, it can be a groove formed by recessing the fixing plate 330 into the antenna cover plate 600 on the side of the fixing plate 330 facing the fixing posts 701, into which the fixing posts 701 are inserted for fixing. Both cases can achieve quick positioning and installation between the fixing plate 330 and the antenna base plate 700.

[0040] like Figure 2As shown, the metal strip assembly 300 also includes an insulating pad 320, which includes a first insulating pad 321 and a second insulating pad 322. The first insulating pad 321 is disposed near the antenna cover plate 600, and the second insulating pad 322 is disposed near the antenna base plate 700. The metal strip 310 is disposed between the first insulating pad 321 and the second insulating pad 322. A fixing plate 330 is sandwiched between the metal strip 310 and the second insulating pad 322. The fixing plate 330 is disposed at the end of the antenna connector 430 near the metal strip 310. There is a first opening 332, and a second insulating pad 322 is provided with a second opening 323 corresponding to the position of the first opening 332. The antenna base plate 700 is provided with a third opening 702 corresponding to the position of the second opening 323. One end of the antenna connector 430 passes through the third opening 702, the second opening 323 and the first opening 332 in sequence, and abuts against the metal strip 310. A fourth opening 324 is also provided at the position of the second insulating pad 322 corresponding to the position of the fixing post 701. The fixing post 701 passes through the fourth opening 324 and cooperates with the positioning hole 331 for fixation.

[0041] This application replaces the original printed circuit board with a metal strip assembly 300, retaining only the metal strip 310 that needs to be connected. Two insulating pads 320 replace the outer shell of the original printed circuit board, sandwiching the metal strip 310 between the two insulating pads 320. The first insulating pad 321 and the second insulating pad 322 hold the metal strip 310 between the two insulating pads 320 from above and below, effectively supporting and limiting the metal strip 310. This prevents the metal strip 310 from easily moving or falling off within the insulating pads 320, ensuring the stability of the metal strip assembly 300 structure. Simultaneously, it ensures that when the antenna connector 430 is directly connected to the metal strip 310, the position of the metal strip 310 will not shift, preventing ineffective or loose connections between the antenna connector 430 and the metal strip 310, thus ensuring normal signal transmission and enhancing the overall stability of the antenna 10.

[0042] One end of the antenna connector 430 is connected to the first cavity 410 of the filter 400, and the other end passes directly through the third opening 702 of the antenna base plate 700, the second opening 323 on the second insulating pad 322, and the first opening 332 on the fixed carrier plate 330, abutting against the metal strip 310 and connecting with it. In this way, the signal transmitted by the filter 400 is directly transmitted to the metal strip 310 through the antenna connector 430, which greatly shortens the signal transmission path and reduces signal loss and consumption during transmission, further improving the working efficiency of the antenna 10. This design avoids the problem of a long signal transmission path in the integrated filter-antenna structure where the metal filter 400 is soldered on the same side of the first cavity 410 and the second cavity 420 and then connected to another printed circuit board. This design requires the signal to enter from the back of the printed circuit board, pass through the filter 400, and then enter the antenna structure feed network on the front of the printed circuit board. This design reduces or even avoids signal loss or interference problems during signal transmission.

[0043] When the mounting plate 330 is installed below the metal strip 310, a second insulating pad 322 separates the antenna base plate 700 and the mounting plate 330. A fourth opening 324 is provided on the second insulating pad 322 corresponding to the position of the fixing post 701 of the mounting plate 330. This effectively avoids the fixing post 701 of the mounting plate 330 by allowing the fixing post 701 to pass through the second insulating pad 322 more easily and be inserted into the positioning hole 331 of the mounting plate 330 for positioning and fixing. The actual installation... During the assembly process, the metal strip 310 is first fixedly installed on the fixed carrier plate 330. Through the fourth opening 324 on the second insulating pad 322, it can be quickly aligned and matched with the positioning hole 331 on the fixed carrier plate 330. Then, the fixing post 701 on the antenna base plate 700 is inserted into the positioning hole 331 through the fourth opening 324. This makes it easier to quickly install the antenna base plate 700, the second insulating pad 322, and the fixed carrier plate 330, saving assembly time, improving production efficiency, and making it more conducive to the mass production of the equipment.

[0044] Figure 3 This is a second exploded view of the metal strip assembly in the first embodiment of this application;

[0045] Figure 3 Combination Figure 1As shown, specifically, when the fixed carrier plate 330 is installed above the metal strip 310, the metal strip assembly 300 also includes a third insulating pad 325 and a fourth insulating pad 326. The third insulating pad 325 is located near the antenna cover plate 600, and the fourth insulating pad 326 is located near the antenna base plate 700. The metal strip 310 is located between the third insulating pad 325 and the fourth insulating pad 326. The fixed carrier plate 330 is sandwiched between the third insulating pad 325 and the metal strip 310. The fourth insulating pad 326 is provided with a fifth opening 327, and the antenna base plate 700 is provided with a sixth opening 328 corresponding to the position of the fifth opening 327. One end of the antenna connector 430 passes through the fifth opening 327 and the sixth opening 328 in sequence and abuts against the metal strip 310. The fourth insulating pad 326 is also provided with a seventh opening 329 corresponding to the position of the fixing post 701. The fixing post 701 passes through the seventh opening 329 and cooperates with the positioning hole 331 for fixation.

[0046] and Figure 2 Unlike the illustrated embodiment, in this embodiment, the fixed carrier plate 330 is positioned above the metal strip 310, near the antenna cover plate 600. This allows the antenna connector 430 to directly pass through the sixth opening 328 on the antenna base plate 700 and the fifth opening 327 on the fourth insulating pad 326 to reach the metal strip 310 after the metal strip 310 is installed. No additional opening is needed on the fixed carrier plate 330. This also prevents horizontal displacement of the metal strip 310 during installation without affecting the signal connection between the metal strip 310 and the antenna connector 430, further improving the stability of signal transmission between the metal strip 310 and the antenna connector 430.

[0047] In addition, the insulating pad 320 itself has an insulating effect, which can prevent the signal from being interfered with during signal transmission, reduce the signal loss when passing through the metal strip 310, ensure the stability of signal transmission, and make the antenna 10 simpler.

[0048] The metal strip 310 in this application is a thin metal sheet, such as an aluminum or copper sheet, which can be processed by etching or die cutting. The fixing carrier plate 330 is made of at least one of liquid crystal polymer material, polyimide, and modified polyimide. When the fixing carrier plate 330 is made of liquid crystal polymer material, it has excellent heat resistance and molding performance, such as high strength, high modulus, outstanding heat resistance, extremely small coefficient of linear expansion, excellent flame retardancy, electrical insulation, chemical corrosion resistance, weather aging resistance, and microwave transmittance, as well as excellent molding performance. Moreover, the fixing carrier plate 330 made of liquid crystal polymer material can also provide good support for the metal strip 310, preventing deformation of the metal strip 310. With the support of the fixing carrier plate 330, the thickness of the metal strip 310 can be made thinner and the width can be narrower without deformation, thus greatly reducing cost.

[0049] The insulating pad 320 is made of foam, and PEI foam or PMI foam can be used. The insulating pad 320 is fixed to the metal strip 310 with plastic pins, so that the insulating pad 320 and the metal strip 310 are not easy to fall off and are more firmly fixed. Alternatively, other methods such as adhesive backing can also achieve the above effect, which will not be described in detail here.

[0050] like Figure 1 The combination shown Figure 2 In this application, the antenna 10 also includes a guide plate 800, which is a thin metal sheet. The antenna cover plate 600 includes two fixing parts 610. The two ends of the antenna cover plate 600 extend away from the metal strip assembly 300 to form two fixing parts 610. The guide plate 800 is fixedly connected to the two fixing parts 610, and the guide plate 800 is arranged parallel to the antenna cover plate 600. The antenna cover plate 600 forms a window corresponding to the position of the feed ring 301.

[0051] The director piece 800 is a metal piece parallel to the metal strip 310 and is located directly above the feed ring 301 of the metal strip 310. The material of the director piece 800 is a good electrical conductor, such as copper or aluminum. In practical applications, considering factors such as structural stability, feasibility, and weight, a copper-plated dielectric substrate is generally used. The director piece 800 is used to improve the signal transmission effect and enhance the performance of the antenna 10.

[0052] Two through slots 810 can be provided on the guide piece 800. Two fixing parts 610 extending from the antenna cover plate 600 pass through the two slots respectively and are snapped into the guide piece 800. The guide piece 800 is snapped onto the antenna cover plate 600 by a snap-fit ​​method, which makes the connection between the guide piece 800 and the antenna cover plate 600 simpler and facilitates disassembly and installation. When the guide piece 800 is damaged during long-term use, the guide piece 800 can be removed from the antenna cover plate 600 and replaced with a new guide piece 800. Timely maintenance can be performed to ensure the stability of signal transmission and will not affect the use of the antenna 10.

[0053] Meanwhile, the guide piece 800 and the antenna cover plate 600 are fixed by a snap-fit ​​method, which can be used for guide pieces 800 of various specifications and thicknesses, and has strong versatility.

[0054] In addition, the antenna cover plate 600 and the guide piece 800 can also be installed by laser welding. This makes the connection between the guide piece 800 and the antenna cover plate 600 more secure, and the guide piece 800 is less likely to fall off the antenna cover plate 600, thus ensuring the stability of the antenna 10 and further improving the stability of the signal transmission of the antenna 10.

[0055] Antenna 10 also includes radome 200, which covers the metal strip assembly 300 and the guide plate, effectively protecting the metal strip assembly 300 and the guide plate, preventing external factors and severe weather from affecting the antenna, avoiding corrosion that could damage the equipment, and effectively extending the service life of the equipment.

[0056] Figure 4 This is an exploded view of the metal strip assembly, antenna base plate, and fixing cover plate according to the first embodiment of this application, as shown below. Figure 4 As shown, the main difference between this embodiment and the first and second embodiments lies in the following: the metal strip assembly 300 is provided with a plurality of feed rings 301 and a power divider network 302 connecting adjacent feed rings 301; a plurality of recesses 711 are formed directly below the feed rings 301; a plurality of protrusions 303 corresponding to the recesses 711 are formed on the back of the antenna base plate 700; a groove 720 is formed by connecting two rows of adjacent protrusions 303; and a filter is embedded in the groove 720.

[0057] The metal strip assembly 300 is close to the surface of the antenna base plate 700. The cavity depth at the position of the power divider network 302 is smaller than the cavity depth at the position of the feed ring 301. The shape of the antenna base plate 700 matches the surface of the metal strip assembly 300 close to the antenna base plate 700, forming multiple protrusions 303. A groove 720 is formed between adjacent protrusions 303. The filter 400 is embedded in the groove 720.

[0058] In antenna 10, the metal strip 310 includes multiple feed rings 301 and a power divider network 302 connecting the feed rings 301. Generally, the cavity depth on the back of the power divider network 302 is smaller than the cavity depth on the back of the feed rings 301, resulting in multiple protrusions 303 on the back of the antenna base plate 700. The groove 720 is formed by the gap between these protrusions 303. The filter 400 is placed in the groove 720, thereby making the total height of antenna 10 smaller.

[0059] Furthermore, the placement of the filter 400 avoids the location of the rear boss 303, ensuring that the overall height of the antenna 10 does not increase. The filter 400 can be a separate structure or it can be soldered onto the antenna base plate 700 to save height.

[0060] Of course, the filter 400 can also be arranged in a mirror arrangement. When a mirror arrangement is used, the filter 400 is not the same filter 400. Generally speaking, it is best if the left and right power divider networks 302 are mirrored. If they cannot be completely mirrored, the line lengths of the left and right power divider networks 302 should be exactly the same (the line length refers to the contact point of the connector, that is, the line length from the junction to each element feed ring). The closer the junction is to the center line, the closer the arranged lines are to a mirror distribution.

[0061] Combination Figure 1 and Figure 4 As shown, the antenna 10 also includes a fixing cover plate 710, which is disposed on the side of the filter 400 away from the antenna base plate 700 and connected to the antenna base plate 700 for pressing the filter 400.

[0062] When the filter 400 is placed in the groove 720, during the use of the antenna 10, external factors often cause the antenna 10 to shake. Prolonged shaking may cause the filter 400 to detach from the groove 720. Therefore, a fixing cover 710 is installed on the groove 720 to press the filter 400 firmly and confine it within the groove 720, preventing the filter 400 from shaking and avoiding unstable signal transmission. This further improves the stability of the antenna 10 and the stability of signal transmission.

[0063] Furthermore, the fixing cover plate 710 is made of conductive metal material, and a silver plating layer 711 is provided on the surface of the filter 400 near the fixing cover plate 710. A conductive cotton 730 is placed between the filter 400 and the fixing cover plate 710. The conductive cotton 730 is used to connect the silver plating layer 711 and the fixing cover plate 710 for grounding. Of course, it is also possible to not provide a silver plating layer and directly ground the structure on the filter that needs to be grounded through the fixing cover plate 710.

[0064] The conductive cotton 730 can be a conductive sponge or conductive foam produced using polymer composite material foaming technology. For example, when the conductive cotton 730 is a conductive sponge, the uniform pore size, softness, elasticity, and non-shedding properties of the conductive sponge effectively protect the filter 400 within the groove 720, preventing corrosion of the electrical components on the filter 400. This effectively extends the service life of the filter 400 and further improves the signal transmission stability of the antenna 10, ensuring that signal transmission is not hindered by corrosion of the filter 400 structure. This further enhances the service life of the filter 400 and the performance stability of the antenna 10.

[0065] Figure 5 This is a schematic diagram of the connector according to yet another embodiment of this application, as shown. Figure 5 As shown, the main difference between this embodiment and other embodiments is that: the end where the power amplifier connector 440 and the filter 400 are connected, and the end where the antenna connector 430 and the filter 400 are connected, are both petal structures 431; the petal structures 431 are respectively snapped into the first cavity 410 and the second cavity 420, and the other end of the power amplifier connector 440 and the antenna connector 430 are both pin structures 441, which abut against the metal strip 310 and the baseband board 500 respectively.

[0066] In order to achieve better connection between connector 460 and filter 400, and better conduction between connector 460 and antenna structure 100 and baseband board 500, this application has made improvements to both connection ends of connector 460. First, the end of power amplifier connector 440 and antenna connector 430 that connects to filter 400 is set to a petal-like structure 431.

[0067] Furthermore, the inlet and outlet shapes of the first cavity 410 and the second cavity 420 are designed as circular through holes or circular blind holes. The petal structure 431 is slightly larger than the first and second cavities. The connecting ends of the petal structure 431 allow the power amplifier connector 440 and the antenna connector 430 to be inserted into the inlet and outlet of the first cavity 410 and the second cavity 420 of the filter 400, respectively, thus snapping the power amplifier connector 440 and the antenna connector 430 together with the filter 400. The end of the antenna connector 430 connected to the metal strip 310 and the end of the power amplifier connector 440 connected to the baseband board 500 employs a pin structure 441. The surface plating of the pin structure 441 is generally gold-plated, which can better improve its corrosion resistance and electrical performance. The connecting ends of the pin structure 441 can improve the corrosion resistance, stability, and durability of the power amplifier connector 440 and the antenna connector 430. Furthermore, the use of the pin structure 441 can reduce the weight and size of the power amplifier connector 440 and the antenna connector 430, making the power amplifier connector 440 and the antenna connector 430 more refined and aesthetically pleasing.

[0068] In addition, combined Figure 1 and Figure 5 As shown, a low-pass connector 450 is provided at one end of the power amplifier connector 440 that connects to the baseband board 500. The power amplifier connector 440 is connected to the power amplifier end of the baseband board 500 through the low-pass connector 450. The low-pass connector 450 is connected to the filter 400 to form a low-pass filter 400, which is used to filter high-frequency noise in signal transmission and improve signal transmission performance. The low-pass connector can be cylindrical. Alternatively, a high-pass connector can be used depending on the actual needs and the application environment; no specific limitations are imposed in this application.

[0069] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0070] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. An antenna, comprising an antenna cover plate, an antenna base plate, a filter, a connector, and a baseband board, wherein the antenna cover plate and the antenna base plate are correspondingly disposed, and the filter is disposed between the antenna base plate and the baseband board; characterized in that, The antenna further includes a metal strip assembly and a limiting structure. The metal strip assembly is disposed between the antenna cover plate and the antenna base plate, and the antenna cover plate and the antenna base plate press the metal strip assembly together. The metal strip assembly is provided with a feed ring and a power amplifier network connected to the feed ring. The metal strip assembly includes a fixed carrier plate and a metal strip. The fixed carrier plate is disposed on the side of the metal strip near the filter and is fixedly connected to the metal strip. The limiting structure is connected to the antenna cover plate or the antenna base plate and is used to limit the fixed carrier plate. The connector includes an antenna connector and a power amplifier connector. One end of the antenna connector is connected to the filter and the other end is connected to the metal strip. One end of the power amplifier connector is connected to the filter and the other end is connected to the power amplifier end of the baseband board. The metal strip assembly also includes an insulating pad, which includes a first insulating pad and a second insulating pad. The first insulating pad is disposed near the antenna cover plate, and the second insulating pad is disposed near the antenna base plate. The metal strip is disposed between the first insulating pad and the second insulating pad. The filter includes a filter body, a first cavity, and a second cavity. The first cavity is located on the side of the filter body closer to the metal strip assembly, and the second cavity is located on the side of the filter body closer to the baseband board. One end of the antenna connector is connected to the first cavity, and the other end is connected to the metal strip assembly. One end of the power amplifier connector is connected to the second cavity, and the other end is connected to the power amplifier end of the baseband board. The filter is provided with multiple cavities, and the first cavity and the second cavity are respectively the first cavity and the last cavity among the multiple cavities; The signal transmitted by the filter is directly transmitted to the metal strip through the antenna connector.

2. The antenna according to claim 1, characterized in that, The limiting structure includes a positioning hole and a fixing post. The positioning hole is disposed on the fixing carrier plate, and the fixing post is disposed on the antenna base plate. The positions of the positioning hole and the fixing post are corresponding. The fixing post cooperates with the positioning hole to fix the antenna base plate to the fixing carrier plate.

3. The antenna according to claim 2, characterized in that, The metal strip assembly further includes a first insulating pad and a second insulating pad. The first insulating pad is disposed near the antenna cover plate, and the second insulating pad is disposed near the antenna base plate. The metal strip is disposed between the first insulating pad and the second insulating pad. The fixing plate is sandwiched between the metal strip and the second insulating pad. The fixed carrier plate has a first opening at the end of the antenna connector near the metal strip, the second insulating pad has a second opening at the position of the first opening, and the antenna base plate has a third opening at the position of the second opening. One end of the antenna connector passes sequentially through the third opening, the second opening, and the first opening, and abuts against the metal strip wire; The second insulating pad is also provided with a fourth opening corresponding to the position of the fixing post, and the fixing post passes through the fourth opening and is fixed in place with the positioning hole.

4. The antenna according to claim 2, characterized in that, The metal strip assembly further includes a third insulating pad and a fourth insulating pad. The third insulating pad is disposed near the antenna cover plate, and the fourth insulating pad is disposed near the antenna base plate. The metal strip is disposed between the third insulating pad and the fourth insulating pad. The fixing carrier plate is sandwiched between the third insulating pad and the metal strip. The fourth insulating pad is provided with a fifth opening, and the antenna base plate is provided with a sixth opening at the position corresponding to the fifth opening; One end of the antenna connector passes through the fifth opening and the sixth opening in sequence and abuts against the metal strip wire; The fourth insulating pad is also provided with a seventh opening corresponding to the position of the fixing post, and the fixing post passes through the seventh opening and is fixed in place with the positioning hole.

5. The antenna according to claim 3 or 4, characterized in that, The fixed carrier plate is made of at least one of liquid crystal polymer material, polyimide, and modified polyimide.

6. The antenna according to claim 1, characterized in that, The antenna connector and the filter are connected at one end with a petal structure and at the other end with a pin structure. One end of the antenna connector is snapped into the first cavity through the petal structure, and the other end is abutted against the metal strip through the pin structure. The power amplifier connector and the filter are connected at one end with a petal structure and at the other end with a pin structure. One end of the power amplifier connector is snapped into the second cavity through the petal structure, and the other end is abutted against the power amplifier end of the baseband board through the pin structure.

7. The antenna according to claim 2, characterized in that, The metal strip includes multiple feed rings and a power divider network connecting adjacent feed rings. Multiple recesses are formed directly below each feed ring, and multiple protrusions corresponding to the recesses are formed on the back of the antenna base plate. A groove is formed between two adjacent rows of protrusions, and the filter is embedded in the groove.

8. The antenna according to claim 7, characterized in that, The antenna also includes a fixing cover plate, which is disposed on the side of the filter away from the antenna base plate and connected to the antenna base plate for pressing the filter.

9. The antenna according to claim 1, characterized in that, The antenna also includes a director piece, which is a thin metal sheet and is disposed on the side of the antenna cover away from the metal strip assembly; The antenna cover plate has two fixed parts extending away from the metal strip assembly at both ends. The guide plate is fixedly connected to the two fixed parts and is arranged parallel to the antenna cover plate. The antenna cover plate forms a window corresponding to the position of the feed ring.

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