Antenna oscillator and antenna oscillator array

Abstract

The utility model provides an antenna oscillator and an antenna oscillator array. The antenna oscillator comprises a PCB base plate; the metal structure is arranged on a target area of the PCB bottom plate, the target area comprises an area formed by the outer edge of the antenna oscillator and the outer edge of the radiation structure, and the radiation structure is arranged above the PCB bottom plate. According to the technical scheme of the utility model, the problems of gain reduction, cross polarization deterioration and S parameter deterioration caused by the influence of adjacent antenna oscillators on indexes when antenna oscillators form a narrow-spacing antenna array in the prior art are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and in particular to an antenna element and an antenna element array. Background Art

[0002] When some antenna elements are simulated individually, their gain, cross-polarization and S parameters are relatively perfect.

[0003] However, when they are combined into an antenna array with narrow spacing, their indicators will be affected by adjacent antenna elements, resulting in problems such as gain reduction, cross-polarization degradation, and S parameter degradation.

[0004] Regarding the related technology, when antenna elements form an antenna array with narrow spacing, the indicators will be affected by adjacent antenna elements, resulting in a decrease in gain, deterioration of cross-polarization and deterioration of S parameters. No effective solution has been proposed so far. Utility Model Content

[0005] The main purpose of the utility model is to provide an antenna element and an antenna element array to solve the problem in the related art that when the antenna elements form an antenna array with narrow spacing, the indicators will be affected by adjacent antenna elements, resulting in a decrease in gain, deterioration of cross polarization and deterioration of S parameters.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of an embodiment of the utility model, an antenna vibrator is provided, including: a PCB base plate; a metal structure arranged on a target area of ​​the PCB base plate, wherein the target area includes an area formed by an outer edge of the antenna vibrator and an outer edge of a radiating structure, and the radiating structure is arranged above the PCB base plate.

[0007] Furthermore, a first distance between the metal structure and an outer edge of the antenna element is a first value, and a second distance between the metal structure and an outer edge of the radiation structure is a second value.

[0008] Furthermore, the metal structure is evenly laid on the target area, and the height of the metal structure is equal to the height of the radiation structure.

[0009] Further, the radiation structure includes: a first sub-radiation structure, a second sub-radiation structure, a third sub-radiation structure, and a fourth sub-radiation structure, wherein, in the first sub-radiation structure, the second sub-radiation structure, the third sub-radiation structure and the fourth sub-radiation structure, the angle between any two adjacent sub-radiation structures is a target angle.

[0010] Furthermore, there is a gap between any two adjacent sub-radiation structures, and a width of the gap is a third value.

[0011] Furthermore, the antenna element further includes: a PCB support body disposed below the PCB bottom plate, the support body is a cross structure, and the support body includes a first sub-support body and a second sub-support body.

[0012] Furthermore, there are a first fixed structure and a second fixed structure protruding above the first sub-support body, and there are a third fixed structure and a fourth fixed structure protruding above the second sub-support body. The radiating structure is provided with four conducting grooves at corresponding positions of the four fixed structures. The four fixed structures extend to the four conducting grooves through the PCB board to realize the connection between the four fixed structures and the radiating structure. The four fixed structures include: the first fixed structure, the second fixed structure, the third fixed structure and the fourth fixed structure.

[0013] Furthermore, the metal structure adopts a plating material, and the plating material includes at least one of the following: copper, tin, nickel, and silver.

[0014] According to another aspect of the embodiment of the utility model, an antenna element array is further provided, comprising: a plurality of antenna elements in any one of the above items.

[0015] Furthermore, the row spacing between any two antenna elements in the antenna element array is equal, and the column spacing between any two antenna elements in the antenna element array is equal.

[0016] The technical solution of the utility model is applied, a PCB base plate; a metal structure is arranged on the target area of ​​the PCB base plate, wherein the target area includes an area formed by the outer edge of the antenna vibrator and the outer edge of the radiation structure, and the radiation structure is arranged above the PCB base plate. Through the above-mentioned arrangement, when the above-mentioned antenna vibrators are composed into an antenna array with a narrow spacing, the existence of the metal structure can avoid the influence of adjacent antenna vibrators in the array on each other as much as possible. Therefore, the technical solution of the utility model effectively solves the problem in the related art that when the antenna vibrators form an antenna array with a narrow spacing, the indicators will be affected by the adjacent antenna vibrators, resulting in a decrease in gain, deterioration of cross-polarization and deterioration of S parameters, thereby improving the indicator effect produced by the antenna vibrator in the antenna array. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present invention 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:

[0018] Figure 1 A schematic diagram of an antenna vibrator in the related art is shown;

[0019] Figure 2 A schematic diagram of the simulated gain of an antenna element alone in the related art is shown;

[0020] Figure 3 A schematic diagram of an array composed of antenna elements in the related art is shown;

[0021] Figure 4 A schematic diagram of simulated gain of an antenna element array in the related art is shown;

[0022] Figure 5 A schematic diagram of an improved antenna element according to the utility model is shown;

[0023] Figure 6 Shows Figure 5 A schematic top view of an improved antenna element;

[0024] Figure 7 A schematic diagram of an array composed of improved antenna elements according to the utility model is shown;

[0025] Figure 8 A simulation schematic diagram of an improved antenna element array according to the utility model is shown.

[0026] The above drawings include the following reference numerals:

[0027] 10. PCB base plate; 11. Target area;

[0028] 20. Metal structure;

[0029] 30. Radiating structure; 301. First sub-radiating structure; 302. Second sub-radiating structure; 303. Third sub-radiating structure; 304. Fourth sub-radiating structure; 305. Rectangular area; 306. Conducting groove;

[0030] 40. Support body; 401. First sub-support body; 402. Second sub-support body; 4011. First fixing structure; 4012. Second fixing structure; 4021. Third fixing structure; 4022. Fourth fixing structure. DETAILED DESCRIPTION

[0031] 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.

[0032] 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 utility model. 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.

[0033] 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.

[0034] The technical solution of the utility model is aimed at the antenna vibrator. In the related technology, the antenna vibrator (such as Figure 1 As shown in Figure 2, in the case of separate simulation, various simulation indicators, such as gain, cross polarization, S parameters, etc., are relatively perfect. Figure 2 However, when the antenna elements are combined into a narrow-spacing antenna array, adjacent antenna elements will affect each other, such as Figure 3 As shown in Figure 1, these indicators will experience gain degradation, cross-polarization degradation, and S parameter degradation (such as Figure 4 In order to avoid mutual influence between antenna elements, the technical solution of this embodiment makes the following settings.

[0035] like Figure 5 ( Figure 5 The metal structure 20 is not shown in FIG. Figure 6 As shown, in an exemplary embodiment, the antenna element includes: a PCB base plate 10; a metal structure 20 arranged on a target area 11 of the PCB base plate 10, wherein the target area 11 includes an area formed by an outer edge of the antenna element and an outer edge of a radiation structure 30, and the radiation structure 30 is arranged above the PCB base plate 10.

[0036] It should be noted that the printed circuit board (Printed Circuit Board, referred to as PCB).

[0037] The technical solution of the utility model is applied, a PCB base plate; a metal structure is arranged on the target area of ​​the PCB base plate, wherein the target area includes an area formed by the outer edge of the antenna vibrator and the outer edge of the radiation structure, and the radiation structure is arranged above the PCB base plate. Through the above-mentioned arrangement, when the above-mentioned antenna vibrators are composed into an antenna array with a narrow spacing, the existence of the metal structure can avoid the influence of adjacent antenna vibrators in the array on each other as much as possible. Therefore, the technical solution of the utility model effectively solves the problem in the related art that when the antenna vibrators form an antenna array with a narrow spacing, the indicators will be affected by the adjacent antenna vibrators, resulting in a decrease in gain, deterioration of cross-polarization and deterioration of S parameters, thereby improving the indicator effect produced by the antenna vibrator in the antenna array.

[0038] Further, such as Figure 6 As shown, the first distance between the metal structure and the outer edge of the antenna element in the embodiment of the utility model is a first value, and the second distance between the metal structure and the outer edge of the radiation structure is a second value.

[0039] Optionally, the actual first distance and the second distance are obtained through simulation debugging, and the distance range corresponding to the first distance and the second distance is between 0.2-0.8 mm.

[0040] Furthermore, the metal structure is evenly laid on the target area, and the height of the metal structure is equal to the height of the radiation structure.

[0041] It should be noted that, in the embodiment of the present invention, the metal structure can be laid on the target area by electroplating or chemical etching. The laying process can also be selected as etching, drilling, photolithography, electronic etching or ion etching.

[0042] The height of the metal structure should be the same as that of the radiation structure. Optionally, under certain requirements, the height of the metal structure can be slightly higher or lower than that of the radiation structure. The metal structure should completely surround the radiation structure, that is, the metal structure should be laid evenly and without gaps on the target area.

[0043] Furthermore, by evenly and completely laying the metal structure at the same height as the radiation structure, the metal structure can wrap the radiation structure of the antenna element, thereby effectively reducing the mutual influence of adjacent antenna elements.

[0044] Furthermore, if Figures 5 to 6As shown, the radiation structure includes: a first sub-radiation structure 301, a second sub-radiation structure 302, a third sub-radiation structure 303, and a fourth sub-radiation structure 304, wherein, in the first sub-radiation structure, the second sub-radiation structure, the third sub-radiation structure and the fourth sub-radiation structure, the angle between any two adjacent sub-radiation structures is the target angle.

[0045] It should be noted that the target angle is 90 degrees. In the radiation structure, any two non-adjacent sub-radiation structures are on the same straight line, and the radiation structure can be understood as a cross structure composed of the first sub-radiation structure, the second sub-radiation structure, the third sub-radiation structure and the fourth sub-radiation structure.

[0046] Optionally, the first sub-radiation structure, the second sub-radiation structure, the third sub-radiation structure and the fourth sub-radiation structure may be in a hexagonal shape or other shapes, which is not limited in this embodiment of the utility model.

[0047] like Figures 5 to 6 As shown, for any of the first sub-radiation structure, the second sub-radiation structure, the third sub-radiation structure and the fourth sub-radiation structure, optionally, any sub-radiation structure includes: a rectangular area 305 ( Figure 6 Only one is indicated in the figure), which is used to conduct antenna signals; further, the rectangular area also includes a plurality of conducting slots 306 ( Figure 6 Only one is indicated in the figure), which is used to connect the four fixing structures on the support body 40.

[0048] Optionally, the radiation structure of the antenna vibrator can be made of metal or other materials. Metal materials such as copper and aluminum can be selected. Metal materials have good electrical conductivity and mechanical strength and can achieve high-frequency vibration. Other materials include non-metallic materials such as ceramics. These non-metallic materials have special performance advantages in certain applications, such as corrosion resistance and dimensional stability. The radiation structure of the antenna vibrator in the embodiment of the utility model can select appropriate materials according to specific application requirements.

[0049] Furthermore, if Figures 5 to 6 As shown, there is a gap between any two adjacent sub-radiation structures, and the width of the gap is a third value. The third value is determined during the simulation debugging process based on the customer's requirements for the antenna vibrator gain index. The distance range corresponding to the third value is approximately between 0.2 and 2 mm, but this distance range is not used to limit the present invention.

[0050] Furthermore, if Figures 5 to 6As shown, the antenna element further includes: a PCB support body 40 disposed below the PCB bottom plate, the support body is a cross structure, and the support body includes a first sub-support body 401 and a second sub-support body 402 .

[0051] Furthermore, if Figures 5 to 6 As shown, there are a first fixed structure and a second fixed structure protruding above the first sub-support body, and there are a third fixed structure and a fourth fixed structure protruding above the second sub-support body. The radiating structure is provided with four conducting grooves at corresponding positions of the four fixed structures. The four fixed structures extend to the four conducting grooves through the PCB board to realize the connection between the four fixed structures and the radiating structure. The four fixed structures include: the first fixed structure 4011, the second fixed structure 4012, the third fixed structure 4021 and the fourth fixed structure 4022.

[0052] Furthermore, the metal structure adopts a plating material, and the plating material includes at least one of the following: copper, tin, nickel, and silver.

[0053] Optionally, the material used for the metal structure may also be: gold, gold alloy, silver alloy, copper alloy, zinc alloy or aluminum alloy.

[0054] According to another aspect of the embodiment of the utility model, there is also provided an antenna element array (equivalent to an antenna array, or an antenna), comprising: a plurality of antenna elements in any one of the above items.

[0055] Figure 7 Schematic diagram of the composition of the antenna element array. Optionally, the antenna element array may be an array composed of a plurality of antenna elements, and the specific array row and column data may be: 6*6, 6*8, etc., which is not limited in the embodiment of the utility model.

[0056] The improved antenna array simulation schematic diagram provided by the embodiment of the utility model is as follows Figure 8 Based on Figure 8 It can be seen that the improved antenna element effectively reduces the influence of adjacent antenna elements in the array, and improves the problems of gain reduction, cross-polarization degradation, and S parameter degradation of the antenna element in the antenna array.

[0057] Furthermore, the row spacing between any two antenna elements in the antenna element array is equal, and the column spacing between any two antenna elements in the antenna element array is equal.

[0058] It should be noted that the row spacing and column spacing are generally different, but there are also cases where the row spacing and column spacing are the same. The distance range to which the row spacing and column spacing belong is generally about 1.5 wavelengths.

[0059] Furthermore, the antenna element of the utility model can be applied to antennas, including satellite TV receiving antennas, satellite communication antennas, microwave antennas or radar antennas, etc.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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: PCB base plate; A metal structure is arranged on a target area of ​​the PCB bottom plate, wherein the target area includes an area formed by an outer edge of the antenna element and an outer edge of a radiation structure, and the radiation structure is arranged above the PCB bottom plate.

2. The antenna element according to claim 1, characterized in that: The first distance between the metal structure and the outer edge of the antenna element is a first value, and the second distance between the metal structure and the outer edge of the radiation structure is a second value.

3. The antenna element according to claim 1, characterized in that: The metal structure is evenly laid on the target area, and the height of the metal structure is equal to the height of the radiation structure.

4. The antenna element according to claim 1, characterized in that: The radiation structure includes: a first sub-radiation structure, a second sub-radiation structure, a third sub-radiation structure, and a fourth sub-radiation structure, wherein, among the first sub-radiation structure, the second sub-radiation structure, the third sub-radiation structure and the fourth sub-radiation structure, the angle between any two adjacent sub-radiation structures is a target angle.

5. The antenna element according to claim 4, characterized in that: There is a gap between any two adjacent sub-radiation structures, and the width of the gap is a third value.

6. The antenna element according to claim 1, characterized in that: Also includes: A PCB support body is arranged below the PCB bottom plate, wherein the support body is a cross structure and comprises a first sub-support body and a second sub-support body.

7. The antenna element according to claim 6, characterized in that: There are a first fixed structure and a second fixed structure protruding above the first sub-support body, and there are a third fixed structure and a fourth fixed structure protruding above the second sub-support body. The radiating structure is provided with four conducting grooves at corresponding positions of the four fixed structures. The four fixed structures extend to the four conducting grooves through the PCB bottom plate to achieve connection between the four fixed structures and the radiating structure. The four fixed structures include: the first fixed structure, the second fixed structure, the third fixed structure and the fourth fixed structure.

8. The antenna element according to claim 1, characterized in that: The metal structure adopts a plating material, and the plating material includes at least one of the following: copper, tin, nickel, and silver.

9. An antenna element array, characterized in that: include: A plurality of antenna elements according to any one of claims 1 to 8.

10. The antenna element array according to claim 9, characterized in that: The row spacing between any two antenna elements in the antenna element array is equal, and the column spacing between any two antenna elements in the antenna element array is equal.

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