Antenna oscillator and antenna with same
By designing the structure of radiation plates, flip plates, long holes and notches in the antenna oscillator, the cross-polarization problem of narrow-pitch antennas is solved, and the performance of the antenna is improved, including gain and isolation.
Patent Information
- Application Number
- CN202323551747.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-25
AI Technical Summary
The narrow-pitch antenna has the problem of poor cross-polarization, resulting in poor gain distortion and isolation in the array.
An antenna oscillator is designed, including a radiation plate, multiple flip plates, long holes and notches. The flip plate is connected to the edge of the radiator plate and extends. The long holes and notches are arranged on the flip plate to reduce the overall size. And increase the distance between antenna oscillators to avoid mutual influence of currents and improve cross-polarization.
It effectively improves cross-polarization, broadens bandwidth, reduces the diameter of the antenna oscillator, improves gain, and improves gain distortion and isolation in the array.
Smart Images
Figure CN222233854U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of antennas, and in particular to an antenna vibrator and an antenna having the same. Background Art
[0002] With the rapid development of mobile communication technology and applications, mobile communication networks are gradually being deployed in the direction of refinement, deep coverage, and base station integration. In particular, the application of large-scale array antennas in the next generation of mobile communication technology requires antennas to meet requirements such as miniaturization, light weight, and low cost.
[0003] In the related art, narrow-spacing antennas have the problem of too large aperture, which can easily lead to problems such as gain distortion in the array, poor cross-polarization, and poor isolation. Utility Model Content
[0004] The main purpose of the utility model is to provide an antenna element and an antenna having the same, so as to solve the problem of poor cross-polarization of narrow-spacing antennas in the related art.
[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, an antenna vibrator is provided, including: a radiation plate; a plurality of folding plates, which are connected at intervals at the edge of the radiation plate and extend in a direction away from the radiation plate; a long strip hole, which is arranged on the folding plate and extends along the length direction of the folding plate; a notch, which is arranged on the folding plate, the first end of the notch is connected to the long strip hole, and the second end of the notch extends to the end face of the folding plate away from the radiation plate.
[0006] Furthermore, the elongated hole is a rectangular hole.
[0007] Furthermore, a first center line perpendicular to the length direction of the long strip hole and a second center line perpendicular to the length direction of the folding plate are arranged to overlap or be adjacent to each other.
[0008] Furthermore, the extending direction of the long hole is perpendicular to the direction between the two ends of the notch.
[0009] Furthermore, the shape of the radiation plate is circular or polygonal; when the radiation plate is polygonal, each side of the polygon is connected to a folding plate.
[0010] Furthermore, when the radiation plate is a polygon, the length of the folding plate is smaller than the length of the side of the polygon.
[0011] Furthermore, when the radiation plate is a polygon, the corners of the polygon are provided with chamfered portions.
[0012] Furthermore, a plurality of cutouts are arranged on the radiation plate, each cutout forms a bent plate, and the extending direction of the bent plate is the same as the extending direction of the folding plate.
[0013] Furthermore, each cutout corresponds to a position between two adjacent folding plates.
[0014] According to another aspect of the present invention, an antenna is provided, including an antenna element, and the antenna element is the above-mentioned antenna element.
[0015] By applying the technical solution of the utility model, a plurality of folding plates are connected at intervals at the edge of the radiation plate and extend in a direction away from the radiation plate. A long hole is provided on the folding plate and extends along the length direction of the folding plate. A notch is provided on the folding plate and connects the long hole and the end face of the folding plate away from the radiation plate. Through the above-mentioned arrangement, the arrangement of the folding plate reduces the overall size of the antenna vibrator, thereby increasing the distance between two adjacent antenna vibrators, and because the long holes and the notch are provided, the mutual influence of the current can be avoided, that is, the cross-polarization can be effectively improved. Therefore, the technical solution of the present application effectively solves the problem of poor cross-polarization of narrow-spacing antennas in the related art. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0017] Figure 1 A schematic diagram of the three-dimensional structure of an antenna element according to an embodiment of the utility model is shown;
[0018] Figure 2 Shows Figure 1 A top view schematic diagram of an antenna vibrator;
[0019] Figure 3 Shows Figure 1 Schematic diagram of the side view of the antenna element.
[0020] The above drawings include the following reference numerals:
[0021] 10. Radiating plate; 11. Chamfered portion; 12. Incision; 13. Bending plate; 20. Folding plate; 30. Long hole; 40. Notch. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0025] like Figure 1 As shown, in this embodiment, the antenna element includes: a radiation plate 10, a plurality of folding plates 20, a long hole 30 and a notch 40. The plurality of folding plates 20 are connected to the edge of the radiation plate 10 at intervals and extend in a direction away from the radiation plate 10. The long hole 30 is arranged on the folding plate 20 and extends along the length direction of the folding plate 20. The notch 40 is arranged on the folding plate 20, the first end of the notch 40 is connected to the long hole 30, and the second end of the notch 40 extends to the end surface of the folding plate 20 away from the radiation plate 10.
[0026] By applying the technical solution of this embodiment, a plurality of folding plates 20 are connected at intervals at the edge of the radiation plate 10 and extend in a direction away from the radiation plate 10. The elongated holes 30 are provided on the folding plates 20 and extend along the length direction of the folding plates 20. The notch 40 is provided on the folding plates 20 and connects the elongated holes 30 and the end surface of the folding plates 20 away from the radiation plate 10. Through the above-mentioned arrangement, the arrangement of the folding plates 20 reduces the overall size of the antenna vibrator, thereby increasing the distance between two adjacent antenna vibrators, and because the elongated holes 30 and the notch 40 are provided, the mutual influence of the currents can be avoided, that is, the cross-polarization can be effectively improved. Therefore, the technical solution of this embodiment effectively solves the problem of poor cross-polarization of narrow-spacing antennas in the related art.
[0027] Specifically, the setting of the folding plate of the antenna vibrator in this embodiment not only broadens the bandwidth of the antenna vibrator, but also effectively reduces the aperture of the antenna vibrator, improves the gain of the antenna vibrator, and improves problems such as gain distortion, poor cross polarization and poor isolation in the antenna array.
[0028] like Figure 1 and Figure 3 As shown, in this embodiment, the elongated hole 30 is a rectangular hole. The rectangular hole can make processing easier, that is, processing can be achieved by punching.
[0029] Of course, in embodiments not shown in the figures, the elongated holes 30 are wavy, sawtooth or spindle-shaped structures.
[0030] like Figure 1 and Figure 3 As shown, in this embodiment, a first center line perpendicular to the length direction of the long hole 30 is arranged to coincide with a second center line perpendicular to the length direction of the folding plate 20. The above arrangement enables the long hole 30 to be located at the center of the folding plate 20, and similarly, the notch 40 is also located at the center of the folding plate 20, so that the areas of the folding plate 20 on both sides of the notch 40 are equal, so that the current on both sides is the same, thereby achieving a better cross-polarization effect.
[0031] Preferably, the first center line perpendicular to the length direction of the long hole 30 is arranged to coincide with the second center line perpendicular to the length direction of the folding plate 20. Of course, there may be a certain interval between the first center line perpendicular to the length direction of the long hole 30 and the second center line perpendicular to the length direction of the folding plate 20, and the above-mentioned interval may be between 0 and 5 mm.
[0032] Specifically, the notch 40 being located at the center of the folding plate 20 means that a third center line of the notch 40 perpendicular to the length direction of the long hole 30 coincides with a second center line perpendicular to the length direction of the folding plate 20 .
[0033] like Figure 1 and Figure 3 As shown, in this embodiment, the extending direction of the long hole 30 is perpendicular to the direction between the two ends of the notch 40. The above arrangement can make the processing easier, thereby improving the production efficiency.
[0034] like Figure 1 and Figure 2 As shown, in this embodiment, the radiation plate 10 is circular or polygonal in shape; when the radiation plate 10 is polygonal, each side of the polygon is connected to a folding plate 20. The above arrangement can ensure the flow and symmetry of the current.
[0035] Specifically, in this embodiment, the radiation plate 10 is a square. Of course, the radiation plate 10 can also be a circle, a quadrilateral, a hexagon or an octagon. It should be noted that the number of sides of the above polygons is an even number.
[0036] like Figure 1 and Figure 2 As shown, in this embodiment, when the radiation plate 10 is a polygon, the length of the folding plate 20 is less than the length of the side of the polygon. The above arrangement can meet the needs of actual use.
[0037] like Figure 1 and Figure 2 As shown, in this embodiment, when the radiation plate 10 is a polygon, the corners of the polygon are provided with chamfered portions 11. The provision of the chamfered portions 11 can prevent the assembler from being scratched. Specifically, the chamfered portions 11 can also be arc-shaped.
[0038] like Figures 1 to 3 As shown, in this embodiment, a plurality of cutouts 12 are provided on the radiation plate 10, each cutout 12 forms a bent plate 13, and the extending direction of the bent plate 13 is the same as the extending direction of the folding plate 20. The cutouts 12 form the bent plate 13, and the bent plate 13 extends downward and is connected to the power splitter board. At the same time, such a setting does not require the use of a feeding component, thereby effectively reducing the overall weight of the antenna vibrator.
[0039] Specifically, the distance between the bending plate 13 and the center of the radiation plate 10 is smaller than the distance between the bending plate 13 and the edge of the radiation plate 10 .
[0040] like Figures 1 to 3 As shown, in this embodiment, the number of the cutouts 12 is 4, that is, a feeding method is adopted to ensure the stability of the antenna phase center.
[0041] like Figures 1 to 3As shown, in this embodiment, each cutout 12 corresponds to the position between two adjacent folding plates 20. The above can make the overall structure more regular, and can avoid gain distortion in the array, thereby achieving better cross polarization and isolation.
[0042] At the same time, the cutouts 12 on the radiation plate 10 and the plurality of folded plates 20 are symmetrically arranged, thus ensuring the stability of the phase center.
[0043] According to another aspect of the present application, an antenna is provided, and the antenna of this embodiment includes an antenna vibrator, and the antenna vibrator is the above-mentioned antenna vibrator. The above-mentioned antenna vibrator can avoid gain distortion in the array and improve the cross-polarization and isolation effects.
[0044] Specifically, the antenna includes a plurality of antenna elements, and the plurality of antenna elements are arranged in an array.
[0045] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0047] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0048] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An antenna vibrator, characterized in that: include: Radiant panel (10); A plurality of folding plates (20) are connected to the edge of the radiation plate (10) at intervals and extend in a direction away from the radiation plate (10); An elongated hole (30) is provided on the folding plate (20) and extends along the length direction of the folding plate (20); A notch (40) is arranged on the folding plate (20), a first end of the notch (40) is connected to the long hole (30), and a second end of the notch (40) extends to the end surface of the folding plate (20) away from the radiation plate (10).
2. The antenna element according to claim 1, characterized in that: The elongated hole (30) is a rectangular hole.
3. The antenna element according to claim 1, characterized in that: A first center line perpendicular to the length direction of the long hole (30) and a second center line perpendicular to the length direction of the folding plate (20) are arranged to overlap or be adjacent to each other.
4. The antenna element according to claim 1, characterized in that: The extending direction of the long hole (30) is arranged perpendicular to the direction between the two ends of the notch (40).
5. The antenna element according to any one of claims 1 to 4, characterized in that: The shape of the radiation plate (10) is circular or polygonal; when the radiation plate (10) is the polygonal shape, each side of the polygon is connected to a folding plate (20).
6. The antenna element according to claim 5, characterized in that: When the radiation plate (10) is the polygon, the length of the folding plate (20) is smaller than the length of the side of the polygon.
7. The antenna element according to claim 5, characterized in that: When the radiation plate (10) is the polygon, the corners of the polygon are provided with chamfered portions (11).
8. The antenna element according to any one of claims 1 to 4, characterized in that: The radiation plate (10) is provided with a plurality of cutouts (12), each of the cutouts (12) forms a bent plate (13), and the extending direction of the bent plate (13) is the same as the extending direction of the folding plate (20).
9. The antenna element according to claim 8, characterized in that: Each of the cutouts (12) corresponds to a position between two adjacent folding plates (20).
10. An antenna, comprising an antenna element, characterized in that: The antenna element is the antenna element according to any one of claims 1 to 9.