An air microstrip-based antenna

Abstract

The utility model discloses an antenna based on air microstrip relates to mobile communication equipment technical field, including reflector plate, printed circuit board and a plurality of oscillators, the one side of reflector plate is provided with a plurality of support structures, the printed circuit board is fixed with a plurality of support structures and is arranged on reflector plate, and with reflector plate parallel interval arrangement, to make it with form air layer between reflector plate, and this air layer with printed circuit board, reflector plate forms air microstrip, a plurality of oscillators are arranged in the printed circuit board deviating from the one side of reflector plate along first direction X interval, and are connected printed circuit board, based on the utility model discloses the technical scheme of air microstrip, can realize the structure simplification of air microstrip, not only convenient assembly, and convenient control air microstrip height's consistency, help to improve the product performance of antenna based on air microstrip.

Description

Technical Field

[0001] This utility model relates to the field of mobile communication equipment technology, and specifically to an antenna based on air microstrip. Background Technology

[0002] As the requirements for loss reduction in base station antennas become increasingly stringent, traditional base station antennas consist of a vibrator, a power divider network made of ordinary printed circuit boards, and a reflector. To reduce loss, the traditional printed circuit power divider network is replaced with an air microstrip power divider network. An air microstrip is a power divider network that uses air as a dielectric or part of the dielectric. The printed circuit board is fixedly mounted on the reflector by multiple support structures and is arranged parallel to and spaced apart from the reflector to form an air layer between it and the reflector. This air layer, together with the printed circuit board and the reflector, forms the air microstrip. Similar to ordinary microstrip lines, air microstrips also operate based on the principles of microstrip lines.

[0003] However, in related technologies, existing air microstrips typically use plastic parts to fix the height of the metal sheet. This structure is complex and not conducive to assembly, and it is impossible to maintain the consistency of the air microstrip height, which affects product performance. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose an air microstrip-based antenna to solve the technical problems of complex air microstrip structures, which are not conducive to assembly and cannot maintain high consistency of air microstrips in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This invention provides an air microstrip-based antenna, comprising: The reflector has multiple supporting structures on one side; A printed circuit board, wherein the printed circuit board is fixedly mounted on the reflector by the plurality of support structures and is arranged parallel to and spaced apart from the reflector to form an air layer between the printed circuit board and the reflector, the air layer forming an air microstrip with the printed circuit board and the reflector; and Multiple oscillators are spaced apart along a first direction X on the side of the printed circuit board away from the reflector and are connected to the printed circuit board.

[0006] In some embodiments, the plurality of support structures are a plurality of bosses, which are integrally formed on the side of the reflector near the printed circuit board.

[0007] In some embodiments, the plurality of bosses include: Multiple first protrusions are respectively disposed on opposite sides of the reflector along the second direction Y, for supporting corresponding sides of the printed circuit board; and Multiple second protrusions are spaced apart along the first direction X at the center of the reflector to support the center of the printed circuit board.

[0008] In some embodiments, the plurality of first protrusions are grouped in pairs to form a plurality of protrusion groups; each of the protrusion groups includes two first protrusions respectively disposed on opposite sides of the reflector along the second direction Y, and the plurality of protrusion groups are spaced apart along the first direction X.

[0009] In some embodiments, the plurality of bosses are arranged at the same height, and the height of the plurality of bosses is 0.5-2mm.

[0010] In some embodiments, the vibrator includes an antenna radiating element, and the antenna radiating element has multiple pins on the side near the printed circuit board, all of which are fixedly connected to the printed circuit board.

[0011] In some embodiments, the plurality of pins includes: Multiple power supply pins are connected to the power supply network on the printed circuit board for transmitting power supply signals.

[0012] In some embodiments, four pins are provided, with the four pins arranged in pairs and respectively located on the two diagonals of the antenna radiating element.

[0013] In some embodiments, the oscillator is a sheet metal integrated stamping structure, and the plurality of pins are all bent and formed on the side of the oscillator close to the printed circuit board.

[0014] In some embodiments, the reflector is bent along the second direction Y towards the side where the printed circuit board is located and has sidewalls, and the sidewalls have multiple notches corresponding to the plurality of oscillators.

[0015] Compared with existing technologies, this utility model provides an air microstrip-based antenna. By setting multiple support structures on a reflector, these structures support and fix a printed circuit board (PCB) and multiple vibrators, allowing the PCB and reflector to be arranged parallel and spaced apart, forming an air layer between them. This air layer, together with the PCB and reflector, forms an air microstrip. This approach simplifies the air microstrip structure, facilitating assembly and controlling the uniformity of the air microstrip height, thus improving the performance of the air microstrip-based antenna. Attached Figure Description

[0016] Figure 1 This is an isometric view of the antenna in one embodiment of the present invention; Figure 2This is an exploded view of the antenna in one embodiment of this utility model; Figure 3 This is a side view of the antenna in one embodiment of the present invention; Figure 4 This is a top view of the antenna in one embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Reflector; 11. Boss; 111. First boss; 112. Second boss; 12. Side wall; 121. Notch; 2. Printed circuit board; 3. Vibrator; 31. Antenna radiating element; 32. Pin; 33. Elongated opening; 4. Air microstrip. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] To address the aforementioned technical problems, this invention provides an air microstrip-based antenna, which simplifies the structure of the air microstrip, facilitating assembly and controlling the consistency of the air microstrip height, thereby improving the antenna's performance.

[0020] Please see Figure 1 , Figure 1 This is a schematic diagram of the overall structure of an antenna in one embodiment of the present invention. The antenna includes a reflector 1, a printed circuit board 2 is provided on one side of the reflector 1, and a plurality of vibrators 3 are provided on the side of the printed circuit board 2 away from the reflector 1 at intervals.

[0021] In this embodiment, the reflector 1 can be configured as a long strip-shaped structure; for the convenience of the following description, the length direction of the reflector 1 can be referred to as the first direction X, and its width direction can be referred to as the second direction Y.

[0022] Please see Figure 2 The reflector 1 has side walls 12 symmetrically arranged on opposite sides along the second direction Y. The side walls 12 on both sides can be bent toward the same side of the reflector 1, so that the reflector 1 forms a groove structure as a whole, and the side where the groove is located can be used to assemble the above-mentioned printed circuit board 2.

[0023] The aforementioned printed circuit board 2 is disposed on the side where the groove is located on the reflector 1 and is arranged parallel to and spaced apart from the reflector 1, so that a gap is formed between the printed circuit board 2 and the reflector 1. This gap is an air layer, which can form an air microstrip 4 with the printed circuit board 2 and the reflector 1.

[0024] To ensure the uniformity of the height of the air microstrip 4, multiple support structures are provided on the side of the reflector 1 near the printed circuit board 2. These support structures can support and fix the printed circuit board 2, so that the printed circuit board 2 is suspended on the reflector 1 to form the aforementioned air microstrip 4.

[0025] In one embodiment, the aforementioned multiple support structures can be multiple bosses 11, which can be integrally formed on the reflector 1 by machining. In this case, the reflector 1 can support and fix the printed circuit board 2 through the multiple bosses 11.

[0026] Specifically, such as Figure 2 As shown, the aforementioned plurality of protrusions 11 include a plurality of first protrusions 111 and a plurality of second protrusions 112. The plurality of first protrusions 111 and the plurality of second protrusions 112 can be distributed at different positions of the reflector 1 to provide stable support for the printed circuit board 2.

[0027] Multiple first protrusions 111 can be respectively disposed on opposite sides of the reflector 1 along the second direction Y, so that they can support the printed circuit board 2 on both sides along the second direction Y; while multiple second protrusions 112 can be disposed at intervals along the first direction X at the middle position of the reflector 1, so that they can support the middle part of the printed circuit board 2.

[0028] To further ensure the consistency of the height of the air microstrip 4, the aforementioned multiple first protrusions 111 can be grouped in pairs, thus forming multiple protrusion groups 11 on the reflector 1. Taking any one of the protrusion groups 11 as an example, it includes two first protrusions 111 respectively disposed on opposite sides of the reflector 1 along the second direction Y. Preferably, the two first protrusions 111 belonging to the same protrusion group 11 are symmetrically arranged on the reflector 1. Based on this, the multiple protrusion groups 11 can be spaced apart along the first direction X on the reflector 1 to ensure that they can provide stable support for the printed circuit board 2 in the first direction X.

[0029] It should be noted that, to ensure the consistency of the height of the air microstrip 4, the aforementioned protrusions 11 are preferably set at the same height, and the height of each protrusion 11 can be 0.5-2mm. Of course, the specific height of the protrusion 11 can be flexibly set according to needs, for example, it can be 0.5mm, 1mm, 1.5mm or other height dimensions, and there is no specific limitation on this.

[0030] Based on this, in order to fix the printed circuit board 2, the reflector 1 can be provided with openings on each boss 11, and corresponding openings can be provided at the parts where the printed circuit board 2 contacts each boss 11, so as to facilitate fixing the printed circuit board 2 and the reflector 1 by means of pins.

[0031] Understandably, through the above method, the reflector 1 can stably support and fix the printed circuit board 2 via the various protrusions 11, so that the printed circuit board 2 and the reflector 1 are arranged in parallel intervals to form the aforementioned air microstrip 4. Since the various protrusions 11 are arranged at the same height, the consistency of the height of the air microstrip 4 can be fully guaranteed, and by controlling the height of each protrusion 11, air microstrips 4 of different heights can be formed.

[0032] In other embodiments, the aforementioned multiple support structures can also adopt other structural forms, such as multiple support columns detachably mounted on the reflector 1, or similar support structures. In this case, the formation principle of the air microstrip 4 remains unchanged, and the height of the air microstrip 4 can still be adjusted by controlling the height of each support structure.

[0033] Of course, compared with other structural support structures, the advantages of supporting the printed circuit board 2 by setting multiple bosses 11 on the reflector 1 are at least: it can reduce the processing difficulty, make the assembly more convenient, and make it easier to control the consistency of the height of the air microstrip 4.

[0034] Please see Figure 3-4 The aforementioned multiple oscillators 3 can be fixedly disposed on the side of the printed circuit board 2 away from the reflector 1. The multiple oscillators 3 can be disposed at intervals along the first direction X on the printed circuit board 2 and connected to the printed circuit board 2 respectively.

[0035] In this embodiment, taking any one of the oscillators 3 as an example, the oscillator 3 as a whole can adopt a sheet metal integrated stamping structure of thin metal sheet, which includes an antenna radiation unit 31 and multiple pins 32 formed on the side of the antenna radiation unit 31 near the printed circuit board 2, so that the antenna radiation unit 31 can be connected to the printed circuit board 2 through multiple pins 32.

[0036] Specifically, when forming the aforementioned multiple pins 32, multiple elongated openings 33 can be punched out on the antenna radiating unit 31. The metal strips in each elongated opening 33 are not completely cut off, allowing them to bend along the elongated opening 33 towards the side of the antenna radiating unit 31 closest to the printed circuit board 2, thereby forming the aforementioned multiple pins 32 on the antenna radiating unit 31. When mounting the vibrator 3 onto the printed circuit board 2, the vibrator 3 can contact the surface of the printed circuit board 2 away from the reflector 1 through each pin 32 and can be fixedly connected to the printed circuit board 2 to achieve the fixation of the vibrator 3.

[0037] It is understood that the aforementioned multiple pins 32 include multiple power supply pins, which can be connected to the power supply network on the printed circuit board 2 to realize the power supply signal transmission function.

[0038] However, it should be noted that the specific number and distribution of the power supply pins among the multiple pins 32 mentioned above can be determined based on the circuit structure on the printed circuit board 2, and no specific limitation is required.

[0039] In one embodiment, such as Figure 4 As shown, the antenna radiating unit 31 can be configured as a square plate or a rectangular plate, and the pins 32 can be configured as four. The four pins 32 can be grouped in pairs, and the two groups of pins 32 can be respectively arranged on the two diagonals of the antenna radiating unit 31. The two pins 32 in the same group can be symmetrically arranged in the corresponding diagonal direction.

[0040] In the above manner, the antenna radiating unit 31 can contact the printed circuit board 2 through four pins 32, and the four pins 32 can be soldered and fixed to the printed circuit board 2, thereby realizing the assembly of the vibrator 3.

[0041] In one embodiment, such as Figure 2 As shown, corresponding to each of the above-mentioned oscillators 3, multiple notches 121 can also be symmetrically arranged on the two sidewalls 12 of the reflector 1. The multiple notches 121 can correspond to the multiple oscillators 3 respectively, so that each oscillator 3 can be aligned with each notch 121 on the printed circuit board 2. The size of each notch 121 can be determined according to the size of the oscillator 3, and there is no specific limitation on this.

[0042] To better understand this utility model, the following is combined with... Figure 1-4 The technical solution of one embodiment of this utility model will be described in detail below: In practical applications, multiple protrusions 11 are provided on the reflector 1, and these protrusions 11 support and fix the printed circuit board 2 and multiple vibrators 3, so that the printed circuit board 2 and the reflector 1 are arranged in parallel and spaced apart, forming an air layer between them. This air layer, together with the printed circuit board and the reflector, forms an air microstrip 4. The height consistency of the air microstrip 4 can be controlled by adjusting the height of each protrusion 11; simultaneously, the height of the air microstrip 4 can be adjusted by changing the height of the protrusions 11. This method simplifies the structure of the air microstrip, facilitating assembly and controlling the height consistency of the air microstrip 4, thus contributing to improved product performance of the air microstrip-based antenna.

[0043] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An antenna based on an air microstrip, characterized in that, include: The reflector has multiple supporting structures on one side; A printed circuit board is fixedly mounted on the reflector by the plurality of support structures and is arranged parallel to and spaced apart from the reflector to form an air layer between the printed circuit board and the reflector. The air layer, the printed circuit board, and the reflector form an air microstrip. as well as Multiple oscillators are spaced apart along a first direction X on the side of the printed circuit board away from the reflector and are connected to the printed circuit board.

2. The antenna according to claim 1, characterized in that, The multiple support structures are multiple bosses, which are integrally formed and disposed on the side of the reflector near the printed circuit board.

3. The antenna according to claim 2, characterized in that, The plurality of protrusions include: Multiple first protrusions are respectively disposed on opposite sides of the reflector along the second direction Y, for supporting corresponding sides of the printed circuit board; and Multiple second protrusions are spaced apart along the first direction X at the center of the reflector to support the center of the printed circuit board.

4. The antenna according to claim 3, characterized in that, The plurality of first protrusions are grouped in pairs to form a plurality of protrusion groups; each of the protrusion groups includes two first protrusions respectively disposed on opposite sides of the reflector along the second direction Y, and the plurality of protrusion groups are spaced apart along the first direction X.

5. The antenna according to claim 2, characterized in that, The plurality of protrusions are arranged at the same height, and the height of the plurality of protrusions is 0.5-2mm.

6. The antenna according to claim 1, characterized in that, The vibrator includes an antenna radiating element, and the antenna radiating element has multiple pins on the side near the printed circuit board, all of which are fixedly connected to the printed circuit board.

7. The antenna according to claim 6, characterized in that, The plurality of pins includes: Multiple power supply pins are connected to the power supply network on the printed circuit board for transmitting power supply signals.

8. The antenna according to claim 6, characterized in that, The antenna radiating element has four pins, which are arranged in pairs and on the two diagonals of the antenna radiating element.

9. The antenna according to claim 6, characterized in that, The oscillator is a sheet metal integrated stamping structure, and the multiple pins are all bent and formed on the side of the oscillator close to the printed circuit board.

10. The antenna according to any one of claims 1-9, characterized in that, The reflector is bent along the second direction Y towards the side where the printed circuit board is located, and side walls are provided on the side walls, each with a notch corresponding to the plurality of oscillators.

Images