CN215816397U

CN215816397U - Antenna oscillator

Info

Publication number: CN215816397U
Application number: CN202121912749.5U
Authority: CN
Inventors: 刘鹏; 李永忠; 姜涛
Original assignee: Rosenberger Technologies Co Ltd
Current assignee: Prologis Communication Technology Suzhou Co Ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-02-11
Anticipated expiration: 2031-08-16

Abstract

The present disclosure discloses an antenna element, comprising: the radiator is provided with a reinforcing structure, and the feeder is used for feeding the radiator. Further, the radiator includes a plate-shaped main body portion, and the reinforcing structure is disposed on the main body portion; the reinforcing structure is a protrusion protruding outward from the main body. The antenna oscillator disclosed by the utility model greatly reduces the weight of the antenna oscillator and improves the strength of the antenna oscillator on one hand, and is beneficial to miniaturization of a base station antenna on the other hand.

Description

Antenna oscillator

Technical Field

The present disclosure relates to antenna technology, and more particularly, to an antenna element.

Background

With the rapid development of wireless communication, base station antennas are developing towards multi-frequency, multi-port and multi-system. In the 2G era, the base station antenna mainly comprises a dual-polarized 2-port antenna, and the antenna has a simple structure and is convenient to use; in the 3G era, the antenna is mainly a dual-frequency 4-port antenna, is compatible with a 2G network, and has no obvious increase in the size; in the 4G era, the frequency band of the antenna is further increased, 2G, 3G and 4G networks need to be supported simultaneously, the MIMO function needs to be used, the antenna port is doubled and increased, and the mainstream demand is more than 6 antennas; by the age of 5G, frequency bands are increased, and site resources are tight, so that operators need to arrange more base station systems in as few sites as possible, and higher requirements are put forward on antennas, and fully integrated antennas become mainstream requirements.

The current antenna oscillator unit usually adopts the sheet metal form due to space and weight limitations, in order to realize the radiation function in the effective space, simultaneously needs to be connected with the bottom layer PCB feed board, needs to cut out a groove (such as a polygon or a hole) with a certain shape on the radiation surface of the antenna oscillator, and the strength of the antenna oscillator is greatly weakened, easy to deform and not beneficial to the miniaturization of the base station antenna.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the present disclosure provides an antenna element, including:

a radiator provided with a reinforcing structure; and

a feeder for feeding the radiator.

According to an embodiment of the present disclosure, the radiator includes a main body portion having a plate shape, the reinforcing structure being provided to the main body portion; the reinforcing structure is a protrusion protruding outward from the main body.

According to an embodiment of the present disclosure, a protruding direction of the protrusion is toward the feed body.

According to an embodiment of the disclosure, the protrusion has a protruding direction facing away from the feed body.

According to one embodiment of the present disclosure, the height of the protrusion is 0.2 to 15 times the thickness of the main body.

According to one embodiment of the present disclosure, the width of the protrusion is 0.5 to 15 times the thickness of the main body.

According to an embodiment of the present disclosure, the radiator is provided with a plurality of the reinforcing structures, the body portion is provided with a main slot, and at least some of the reinforcing structures are located at edges of the main slot.

According to one embodiment of the present disclosure, the minimum distance between the protrusion and the main slot is 1 to 5 times the thickness of the main body.

According to one embodiment of the present disclosure, a portion of the main body portion is stamped and cut to form the main slot and the feed body such that the feed body extends from an edge of the main slot.

According to an embodiment of the present disclosure, the power feeder is provided with the reinforcing structure.

According to one embodiment of the present disclosure, the number of the main slots is 4, and the main slots are evenly distributed around the center of the main body part; the body portion includes a central region between the four main slots and a peripheral region outside the central region; the reinforcing structure comprises a first reinforcing structure arranged in the central area and a second reinforcing structure arranged in the peripheral area.

In accordance with one embodiment of the present disclosure, a portion of the first reinforcing structure passes between adjacent main slots and into the peripheral region.

According to one embodiment of the present disclosure, the first and second reinforcing structures are in communication to form a unitary body.

According to an embodiment of the present disclosure, the first reinforcing structure is further provided with a secondary slot.

According to an embodiment of the present disclosure, the radiator further includes a bent portion formed by bending and extending from one side of the main body portion.

According to an embodiment of the present disclosure, the main body portion or the bent portion is further provided with a secondary slot.

According to an embodiment of the present disclosure, the thickness of the body portion is less than 1 mm.

According to one embodiment of the present disclosure, the thickness of the body portion is 0.1mm to 0.8 mm.

According to the antenna element of the present disclosure, the antenna element is in the form of a metal plate-based antenna element, and one or more reinforcing structures are added to the surface of the radiator, so that the strength of the antenna element can be improved, that is, even if the antenna element is subjected to a large external force, the antenna element is not easily deformed, and the antenna element can be applied to a large-scale MIMO antenna.

Drawings

The features, advantages and other aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description in conjunction with the accompanying drawings, in which several embodiments of the present disclosure are shown by way of illustration and not limitation, wherein:

fig. 1 a-1 c are schematic diagrams of a first example of an antenna element according to the present disclosure;

2a-2c are schematic diagrams of a second example of an antenna element according to the present disclosure;

fig. 3 a-3 c are schematic diagrams of a third example of an antenna element according to the present disclosure;

4 a-4 c are schematic diagrams of a fourth example of an antenna element according to the present disclosure; and

fig. 5 a-5 b are schematic diagrams of a fifth example of an antenna element according to the present disclosure.

Detailed Description

In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings illustrate, by way of example, specific embodiments in which the utility model may be practiced. The exemplary embodiments are not intended to be exhaustive of all embodiments according to the utility model. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

As used herein, the terms "include," "include," and similar terms are to be construed as open-ended terms, i.e., "including/including but not limited to," meaning that additional content can be included as well. The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment," and so on.

The technical problem to be solved by the present invention is how to manufacture an antenna element using a lightweight material while maintaining or providing operational stability without reducing the strength of the antenna element.

In order to solve the above technical problem, an antenna element disclosed herein includes: the radiator is provided with a reinforcing structure, and the feeder is used for feeding the radiator. Further, the radiator includes a plate-shaped main body portion, and the reinforcing structure is provided to the main body portion; and the reinforcing structure is a projection formed to project outwardly from the main body portion.

In practical application, the radiator is provided with a plurality of reinforcing structures, the main body portion is provided with the main slot, and at least part of the reinforcing structures in the plurality of reinforcing structures are located at the edge of the main slot. Specifically, a part of the main body part is punched and cut to form the main slot and the power feeder, so that the power feeder is bent and extended from the edge of the main slot.

Example 1

Fig. 1 a-1 c disclose an exemplary antenna element comprising: a radiator 100 and a feed 200; the radiator 100 includes a plate-shaped main body 10 and a bent portion 20, and the bent portion 20 is formed by bending and extending from one side of the main body 10. In the present embodiment, the feed 200 is vertically disposed at the lower portion of the radiator 100. Of course, it is understood that in other embodiments, the feed 200 may not be perpendicular to the radiator 100. For example, the feed 200 and the radiator 100 form an angle of 80 degrees.

The feed 200 of the disclosed antenna element is intended to be coupled to a PCB feed board. The bending portion 20 of the radiator 100 is used to enhance the edge structural strength of the antenna element, and is used to enhance the effective radiation area of the antenna element, so that the antenna element is further easy to obtain a lower resonant frequency point and a wider operating frequency band.

In addition, a plurality of reinforcing structures are provided in the main body portion 10, and each of the plurality of reinforcing structures is a protrusion formed to protrude outward from the main body portion 10.

Furthermore, the main body portion 10 is provided with a main slot 11, at least part of the plurality of reinforcing structures being located at the edge of the main slot 11. In the present design, the radiator 100 is integrally formed with the feed body 200 by designing the main slot 11, thereby reducing the weight of the antenna element.

In the antenna element disclosed in this embodiment, the number of main slots 11 is 4, and the main slots 11 are evenly distributed around the center of the main slot 11. In addition, the main body portion 10 includes a central region 13 located between the four main slots 11 and a peripheral region 14 outside the central region 13. It can be seen that, in the present embodiment, the reinforcing structures include a first reinforcing structure 310 disposed in the central region 13 and a second reinforcing structure 320 disposed in the peripheral region 14.

As can be seen from fig. 1 a-1 c, portions of the first reinforcing structure 310 pass between adjacent main slots 11 and extend into the corresponding peripheral region 14. Further, the protruding direction of the protrusion of the first reinforcing structure 310 and the protrusion of the second reinforcing structure 320 is toward the feed body 200. Of course, it is understood that in other embodiments, the first reinforcing structure 310 may be disposed only in the central region; alternatively, in other embodiments, the second reinforcing structure 320 is disposed to pass between adjacent main slots 11 and extend into the peripheral region 14.

In addition, in the present embodiment, the radiator 100 further includes a plurality of first slots 12, specifically, a portion of each first slot 12 is disposed on the main body portion 10, and another portion thereof is disposed on the bent portion 20. In this design, the electrical performance of the antenna element is adjusted using a plurality of first slots 12.

In the present embodiment, the protrusions of the first and second reinforcing

structures

310 and 320 have a height of 0.2 to 15 times the thickness of the main body 10, a width of 0.5 to 15 times the thickness of the main body 10, and a center of each protrusion is spaced from an edge of the main slit 11 by 1 to 5 times the thickness of the main body 10. Preferably, the height of the protrusion is 0.5 to 2 times the thickness of the main body 10, the width of the protrusion is 0.5 to 2 times the thickness of the main body 10, and the distance from the center of the protrusion to the edge of the main slot 11 is 2 to 5 times the thickness of the main body 10. The thickness of the body portion 10 of the disclosed antenna element is typically less than 1 mm. Preferably, the thickness of the main body 10 is between 0.1mm and 0.8 mm; preferably, the thickness of the main body 10 is between 0.1mm and 0.5 mm. In the present embodiment, the thickness of the main body 10 may be at least 0.1mm, and is preferably 0.2 mm. In this embodiment, the protruding heights of the first reinforcing structure 310 and the second reinforcing structure 320 are the same, but in other embodiments, the heights of the first reinforcing structure 310 and the second reinforcing structure 320 may also be different.

The antenna oscillator in the embodiment is formed by stamping and cutting a sheet metal part, and a reinforcing structure similar to a convex hull/pit shape and the like is formed on the surface of the radiator by stamping, so that the antenna oscillator is miniaturized, the strength of the antenna oscillator can be improved, the antenna oscillator can bear external pressure and is not easy to deform, and the antenna oscillator can be applied to a large-scale MIMO antenna. Meanwhile, compared with a radiator without the convex hull/pit, the radiator 100 of the present disclosure is provided with the convex hull/pit, thereby effectively increasing the surface area of the radiator 100, and further making the radiator 100 easily obtain a lower resonant frequency point and a wider operating frequency band.

Example 2

Fig. 2a-2c disclose a second exemplary antenna element comprising: a radiator 100 and a feed 200; the radiator 100 includes a plate-shaped main body 10 and a bent portion 20, and the bent portion 20 is formed by bending and extending from one side of the main body 10.

In addition, a plurality of reinforcing structures, main slots 11, a central region 13 and a peripheral region 14 are provided in the main body 10, and in this embodiment, the positions and the numbers of the plurality of reinforcing structures, the positions and the numbers of the main slots 11, the positions and the numbers of the first slots 12, and the central region 13 and the peripheral region 14 are all similar to those of embodiment 1, and are not described again here.

As can be seen from fig. 2a to 2c, the present embodiment is different from embodiment 1 in that: the protruding direction of the protrusions of the first reinforcing structure 310 and the protrusions of the second reinforcing structure 320 faces away from the feed body 200.

In the present embodiment, the height of the protrusions of the first reinforcing structure 310 and/or the protrusions of the second reinforcing structure 320 is 0.2 to 15 times the thickness of the main body 10, the width thereof is 0.5 to 15 times the thickness of the main body 10, and the distance from the center of each protrusion to the edge of the main slot 11 is 1 to 5 times the thickness of the main body 10. Preferably, the height of the protrusion is 0.5 to 2 times the thickness of the main body 10, the width of the protrusion is 0.5 to 2 times the thickness of the main body 10, and the distance from the center of the protrusion to the edge of the main slot 11 is 2 to 5 times the thickness of the main body 10. The thickness of the body portion 10 of the disclosed antenna element is typically less than 1 mm. Preferably, the thickness of the main body 10 is between 0.1mm and 0.8 mm. In the present embodiment, the thickness of the body 10 is preferably in the range of 0.1mm to 0.5 mm.

The antenna oscillator disclosed in this embodiment adds a convex hull-like or pit-like reinforcing structure to the radiator 100, so that on one hand, the strength of the antenna oscillator is greatly improved, the stability of the antenna oscillator is improved, and on the other hand, the effective radiation size of the antenna oscillator is also increased, so that the antenna oscillator can easily obtain a lower resonant frequency point and a wider operating frequency band.

Example 3

Fig. 3 a-3 c disclose a third exemplary antenna element comprising: a radiator 100 and a feed 200; the radiator 100 includes a plate-shaped main body 10 and a bent portion 20, and the bent portion 20 is formed by bending and extending from one side of the main body 10. In the present embodiment, the feed 200 may be vertically disposed at the lower portion of the radiator 100.

The feed 200 of the disclosed antenna element is intended to be coupled to a PCB feed board. The bending portion 20 of the radiator 100 is used to enhance the edge structural strength of the antenna element on the one hand, and enhance the effective radiation area of the antenna element on the other hand, so that the antenna element is further easy to obtain a lower resonant frequency point and a wider operating frequency band.

In addition, a reinforcing structure 300 is provided in the main body 10, and the reinforcing structure 300 is a protrusion formed to protrude outward from the main body 10. Further, the main body portion 10 is provided with a main slot 11.

In the antenna element disclosed in this embodiment, the number of main slots 11 is 4, and the main slots 11 are evenly distributed around the center of the main slot 11. In addition, the main body portion 10 includes a central region 13 located between the four main slots 11 and a peripheral region 14 outside the central region 13.

As can be seen in fig. 3 a-3 c, in the present embodiment, a portion of the reinforcing structure 300 (i.e., the first reinforcing structure) is disposed in the central region 13, and another portion of the reinforcing structure 300 (i.e., the second reinforcing structure) is disposed in the peripheral region 14, such that at least a portion of the reinforcing structure is located at the edge of the main slot 11; that is, as shown in fig. 3 a-3 c, the first reinforcing structure communicates with the second reinforcing structure to integrally form the reinforcing structure 300.

As shown in fig. 3 a-3 c, the protruding direction of the protrusions of the reinforcing structure 300 is towards the feed 200. In addition, in the present embodiment, the radiator 100 further includes a plurality of first slots 12, specifically, a portion of each first slot 12 is disposed on the main body portion 10, and another portion thereof is disposed on the bent portion 20. In this design, the electrical performance of the antenna element is adjusted using a plurality of first slots 12.

In the present embodiment, the height of the protrusion of the reinforcing structure 300 is 0.2 to 15 times the thickness of the main body 10, the width thereof is 0.5 to 15 times the thickness of the main body 10, and the distance from the center of the protrusion to the edge of the main slot 11 is 1 to 5 times the thickness of the main body 10. The thickness of the body portion 10 of the disclosed antenna element is typically less than 1 mm. Preferably, the thickness of the main body 10 is between 0.1mm and 0.8 mm; preferably, the thickness of the main body 10 is between 0.1mm and 0.5 mm. In the present embodiment, the thickness of the body portion 10 is 0.1 mm.

As compared with embodiments 1 and 2, the first reinforcing structure and the second reinforcing structure of the antenna element disclosed in the present embodiment form the reinforcing structure 300 integrally, and thus it is understood that various forms of reinforcing structures may be employed in order to enhance the strength of the antenna element while achieving miniaturization of the antenna element; and based on the design of additional strengthening, the antenna element easily obtains lower resonance frequency point and wider operating frequency band, can also strengthen its job stabilization nature.

Example 4

Fig. 4 a-4 c disclose a fourth exemplary antenna element comprising: a radiator 100 and a feed 200; the radiator 100 includes a plate-shaped main body 10 and a bent portion 20, and the bent portion 20 is formed by bending and extending from one side of the main body 10. In addition, a reinforcing structure 300, a main slot 11 and a first secondary slot 12 are provided in the main body 10, and the reinforcing structure 300 is a protrusion formed to protrude outward from the main body 10.

The positions, the numbers, and the like of the reinforcing structure 300 (including the first reinforcing structure and the second reinforcing structure), the main slot 11, the first slot 12, the central region 13, and the peripheral region 14 in the antenna element disclosed in this embodiment are all the same as the positions and the numbers of the reinforcing structure 300, the main slot 11, the first slot 12, the central region 13, and the peripheral region 14 described in embodiment 3, and are not described again here.

As can be seen from fig. 4a to 4c, the present embodiment is different from embodiment 3 in that: the protruding direction of the protrusions of the reinforcing structure 300 faces away from the feed body 200.

In the present embodiment, the height of the protrusion of the reinforcing structure 300 is 0.2 to 15 times the thickness of the main body 10, the width thereof is 0.5 to 15 times the thickness of the main body 10, and the distance from the center of the protrusion to the edge of the main slot 11 is 1 to 5 times the thickness of the main body 10. Preferably, the height of the protrusion is 0.5 to 2 times the thickness of the main body 10, the width of the protrusion is 0.5 to 2 times the thickness of the main body 10, and the distance from the center of the protrusion to the edge of the main slot 11 is 2 to 5 times the thickness of the main body 10. The thickness of the body portion 10 of the disclosed antenna element is typically less than 1 mm. Preferably, the thickness of the main body 10 is between 0.1mm and 0.8 mm; in the present embodiment, the thickness of the body portion 10 is preferably in the range of 0.1mm to 0.5 mm.

Example 5

Fig. 5a, 5b disclose a fifth exemplary antenna element comprising: a radiator 100 and a feed 200; the radiator 100 includes a plate-shaped main body 10 and a bent portion 20, and the bent portion 20 is formed by bending and extending from one side of the main body 10.

In addition, the main body 10 is provided with a plurality of reinforcing structures, a plurality of main slots 11, a plurality of first slots 12, and second slots 15. Specifically, the number of the main slots 11 is 4, and the main slots 11 are uniformly distributed around the center thereof, the central region 13 is disposed on the main body 10 between all the main slots 11, and the plurality of peripheral regions 14 are respectively disposed on the main body 10 outside the central region 13. A first reinforcing structure 310 of the plurality of reinforcing structures is disposed in the central region 13 and a second slot 15 is disposed in the first reinforcing structure 310. The second reinforcing structures 320 of the plurality of reinforcing structures are respectively disposed at the peripheral region 14.

In this embodiment, the first slot 12 and the second slot 15 are both used to adjust the electrical performance of the antenna element.

In addition, in the present design, the antenna element further includes one or more third reinforcing structures 330, as shown in fig. 5b, the third reinforcing structures 330 are disposed on the feeding body 200, so as to further improve the strength of the antenna element.

Further, the shape (substantially triangular) of the second reinforcing structure 320 disclosed in this embodiment is completely different from the shape of the second reinforcing structure 320 disclosed in embodiments 1 to 4, and the shape of the first reinforcing structure 310 disclosed in this embodiment is completely different from the shape of the first reinforcing structure 310 disclosed in embodiments 1 to 4.

That is, the shapes of the first reinforcing structure 310 and the second reinforcing structure 320 disclosed in the present application may be designed according to the actual design situation of the antenna element, so as to achieve the function of enhancing the structure of the antenna element.

The antenna element disclosed in this embodiment adopts a different reinforcing structure (including the third reinforcing structure 330 provided on the feeding body 200) from that of embodiments 1 to 4, so as to achieve the same technical effects as those of embodiments 1 to 4. Therefore, the antenna oscillator disclosed by the utility model can adopt reinforcing structures with different shapes and different forms to improve the overall strength and the working stability of the miniaturized antenna oscillator, and can obtain lower resonance frequency points and wider working frequency bands.

The above description is only an alternative embodiment of the present disclosure and is not intended to limit the embodiments of the present disclosure, and various modifications and changes may be made to the embodiments of the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present disclosure should be included in the scope of protection of the embodiments of the present disclosure.

While embodiments of the present disclosure have been described with reference to several particular embodiments, it should be understood that embodiments of the present disclosure are not limited to the particular embodiments disclosed. The embodiments of the disclosure are intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. An antenna element, comprising:

a radiator provided with a reinforcing structure; and

a feeder for feeding the radiator.

2. An antenna element according to claim 1, wherein the radiator includes a plate-shaped body portion, and the reinforcing structure is provided to the body portion; the reinforcing structure is a protrusion protruding outward from the main body.

3. An antenna element according to claim 2, wherein the protrusion protrudes towards the feed.

4. An antenna element according to claim 2, wherein the protrusion projects away from the feed.

5. The antenna element of claim 2, wherein the height of the protrusion is 0.2 to 15 times the thickness of the main body.

6. An antenna element according to claim 2, wherein the width of the protrusion is 0.5 to 15 times the thickness of the main body portion.

7. An antenna element according to claim 2, wherein the radiator is provided with a plurality of said reinforcing structures, the body portion is provided with a main slot, and at least some of the reinforcing structures are located at the edges of the main slot.

8. An antenna element according to claim 7, wherein the minimum distance between the protrusion and the main slot is 1-5 times the thickness of the main body.

9. An antenna element according to claim 7, wherein a portion of the main body portion is die cut to form the main slot and the feed such that the feed extends from an edge of the main slot.

10. An antenna element according to claim 9, characterised in that the feed is provided with said stiffening structure.

11. An antenna element according to claim 7, wherein the number of main slots is 4, and the slots are evenly distributed around the center of the main body portion; the main body part comprises a central area positioned between the 4 main grooves and a peripheral area outside the central area; the reinforcing structure comprises a first reinforcing structure arranged in the central area and a second reinforcing structure arranged in the peripheral area.

12. An antenna element according to claim 11, wherein portions of the first reinforcing structure pass between adjacent main slots and into the peripheral region.

13. An antenna element according to claim 12, wherein the first and second reinforcing structures are in communication to form a unitary body.

14. An antenna element according to claim 11, characterised in that said first reinforcing structure is further provided with a secondary slot.

15. The antenna element of claim 2, wherein the radiator further comprises a bending portion, and the bending portion is formed by bending and extending from one side of the main body portion.

16. An antenna element according to claim 15, wherein the main body portion or the bent portion is further provided with a secondary slot.

17. An antenna element according to claim 2, wherein the thickness of the body portion is less than 1 mm.

18. The antenna element of claim 17, wherein the thickness of the body portion is 0.1mm to 0.8 mm.