Magnetoelectric dipole directional antenna and communication equipment

By using magnetoelectric dipole directional antennas in high-spec panel APs to form cylindrical gap antennas, the problems of space cramped antenna layout and radiation performance attenuation are solved, and more efficient antenna design and the effect of improving radiation performance is achieved.

CN222601362UActive Publication Date: 2025-03-11TP-LINK
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420356978.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-26
Publication Date
2025-03-11
Estimated Expiration
2034-02-26

AI Technical Summary

Technical Problem

The antenna layout in high-spec panel AP is space-constrained, which makes it difficult to improve the antenna performance. At the same time, the radiation performance of the side antenna is greatly affected by wall blockage, and the performance is rapidly attenuated.

Method used

Magnetic dipole directional antenna is adopted to form a cylindrical gap antenna through the combination of dielectric plate, antenna arms and metal layer, which reduces the height of the antenna and increases the electrical length, and reduces the profile height of the directional antenna, so that it can be arranged on the side with a larger area of ​​the panel AP, providing a larger design space to improve radiation performance.

Benefits of technology

By reducing the profile height of the antenna, it provides greater design space, improves the performance of the radiated antenna on the side, reduces the possibility that the pattern is affected by the wall, and avoids rapid performance attenuation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222601362U_ABST
    Figure CN222601362U_ABST
Patent Text Reader

Abstract

The utility model provides a magnetoelectric dipole directional antenna and a communication device, the directional antenna comprises a dielectric plate, two antenna arms and a metal layer, the dielectric plate is provided with a first side and a second side which are oppositely arranged, the two antenna arms are arranged on the first side of the dielectric plate at intervals, and the metal layer is arranged on the first side of the dielectric plate. The metal layer is arranged on the second side of the dielectric plate, each antenna arm is connected with the metal layer through a metal column, and the metal columns are arranged in the dielectric plate. According to the magnetoelectric dipole directional antenna and the communication equipment provided by the utility model, the directional antenna has the characteristic of low profile, so that the magnetoelectric dipole directional antenna can be arranged on one side with a larger area of a panel AP, a larger design space is provided for the antenna on the side surface, the directional diagram of the directional antenna is less influenced by a wall, and the antenna is more convenient to use. And rapid performance attenuation is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of antennas, and more specifically, relates to a magneto-electric dipole directional antenna and communication equipment. Background Art

[0002] In some low-specification panel-type wireless access points (APs), antennas are usually installed on both sides of the panel AP to achieve omnidirectional coverage in the horizontal plane through complementary directional patterns. However, in high-specification panel APs, there are many antennas. Continuing to place antennas on both sides of the panel AP will inevitably squeeze the available space for a single antenna. The design space of the antenna is limited, making it difficult to improve the performance of each antenna. At the same time, since the back of the panel AP is generally placed against the wall, the radiation performance of the antenna on the side of the panel AP will be blocked by the wall and quickly attenuated, resulting in poor performance. Utility Model Content

[0003] The purpose of the embodiments of the utility model is to provide a magneto-electric dipole directional antenna and a communication device to solve the technical problem of limited space for the layout of complementary antennas in high-specification panel APs in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a magneto-electric dipole directional antenna, including a dielectric plate, two antenna arms and a metal layer, the dielectric plate having a first side and a second side arranged opposite to each other, the two antenna arms being arranged at intervals on the first side of the dielectric plate, the metal layer being arranged on the second side of the dielectric plate, each of the antenna arms being connected to the metal layer by a metal column, and the metal column being arranged inside the dielectric plate.

[0005] Optionally, a slot structure is formed between the two antenna arms, and the slot structure has the same width at various locations along its length direction.

[0006] Optionally, there are multiple metal pillars connecting one of the antenna arms and the metal layer, and an arrangement direction of the multiple metal pillars is parallel to a length direction of the slot structure.

[0007] Optionally, one end of each of the metal pillars is connected to an edge of the metal layer, and the other end of each of the metal pillars is connected to a middle portion of the antenna arm in a width direction of the slot structure.

[0008] Optionally, the antenna arm is arranged in a rectangular shape, and a length direction of the antenna arm is parallel to a length direction of the slot structure.

[0009] Optionally, the metal layer is provided with an escape opening, and a feeding structure for feeding power to the antenna arm is arranged inside the escape opening.

[0010] Optionally, the feeding structure includes two feeding plates and two feeding posts that are spaced apart from each other, one end of the feeding post is connected to the feeding plate, and the other end of the feeding post is connected to the antenna arm.

[0011] Optionally, the magnetoelectric dipole directional antenna is a 5G frequency band antenna.

[0012] The utility model also provides a communication device, comprising the above-mentioned magneto-electric dipole directional antenna.

[0013] Optionally, the communication device also includes a shell structure and two radiating antennas, the shell structure having a first mounting surface perpendicular to its thickness direction, and two second mounting surfaces parallel to its thickness direction, the magnetoelectric dipole directional antenna is arranged on the first mounting surface, and the two radiating antennas are respectively arranged on the two second mounting surfaces.

[0014] The beneficial effects of the magneto-electric dipole directional antenna and communication device provided by the utility model are as follows: compared with the prior art, the magneto-electric dipole directional antenna of the utility model comprises a dielectric plate, two antenna arms and a metal layer, the two antenna arms are arranged at intervals on the first side of the dielectric plate, and the two antenna arms form an electric dipole in the directional antenna. A metal column is arranged inside the dielectric plate, and each antenna arm and the metal layer are connected by the metal column, so that the metal column, the metal layer and the gap between the two antenna arms together form a magnetic dipole of the directional antenna, and the magnetic dipole can also be called a cylindrical slot antenna. By converting the magnetic dipole in the traditional magneto-electric dipole antenna into a cylindrical slot antenna, the axial length of the cylindrical slot antenna can be equivalent to its electrical length. Therefore, under the premise that the electrical length of the magnetic dipole is constant, the length of the cylindrical slot antenna on the first side and the second side can be increased, and the height of the cylindrical slot antenna can be reduced, so that the cross-sectional height of the directional antenna can be reduced, so that the magneto-electric dipole directional antenna can be arranged on the side with a larger area of ​​the panel AP, providing a larger design space for the radiating antenna on the side, and helping the radiating antenna on the side to improve its radiation performance. At the same time, when the magnetoelectric dipole directional antenna is set on the side with a larger area of ​​the panel AP, the radiation energy of the directional antenna is concentrated on the outside of the wall, and the radiation pattern is less affected by the wall, avoiding rapid attenuation of its performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1A three-dimensional structural diagram of a magneto-electric dipole directional antenna provided in an embodiment of the utility model;

[0017] Figure 2 A front view of a magneto-electric dipole directional antenna provided in an embodiment of the utility model;

[0018] Figure 3 A rear view of the magneto-electric dipole directional antenna provided by an embodiment of the utility model;

[0019] Figure 4 A partial three-dimensional structural diagram of a magneto-electric dipole directional antenna provided in an embodiment of the utility model (the dielectric plate is not shown);

[0020] Figure 5 An S-parameter curve diagram of the magnetoelectric dipole directional antenna provided in an embodiment of the utility model;

[0021] Figure 6 The directional diagram of the magneto-electric dipole directional antenna in the horizontal plane provided by the embodiment of the utility model.

[0022] Among them, the reference numerals in the figure are:

[0023] 10 - dielectric plate; 11 - metal column; 20 - antenna arm; 21 - slot structure; 30 - metal layer; 31 - avoidance; 40 - feeding structure; 41 - feeding plate; 42 - feeding column. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In some low-specification panel APs, antennas are usually installed on both sides of the panel AP to achieve omnidirectional coverage in the horizontal plane through complementary directional patterns. However, in high-specification panel APs, there are many antennas. Continuing to place antennas on both sides of the panel AP will inevitably squeeze the available space for a single antenna. The design space of the antenna is limited, making it difficult to improve the performance of each antenna. At the same time, since the back of the panel AP is generally placed against the wall, the radiation performance of the antenna on the side of the panel AP will be blocked by the wall and quickly attenuated, resulting in poor performance.

[0029] In order to alleviate the above-mentioned technical problems, the utility model proposes a new magnetoelectric dipole directional antenna and communication equipment. Two spaced antenna arms 20 are arranged on the first side of the dielectric plate 10, and a metal layer 30 is arranged on the second side of the dielectric plate 10. The two antenna arms 20 and the metal layer 30 are connected by a metal column 11, so that the gap between the two antenna arms 20, the metal column 11 and the metal column 11 form a cylindrical slot antenna. The cylindrical slot antenna can replace the magnetic dipole formed by two parallel plates in the traditional magnetoelectric dipole antenna. The cylindrical slot antenna is circumferentially arranged, and a larger electrical length can be achieved in a smaller space. Moreover, the height of the cylindrical slot antenna can be set to be smaller to achieve a low-profile characteristic, so that the directional antenna can be set on the larger side of the panel AP without occupying the side space of the panel AP.

[0030] The magnetoelectric dipole directional antenna provided in the embodiment of the utility model is now described.

[0031] See also Figures 1 to 3 The magnetoelectric dipole directional antenna includes a dielectric plate 10 , two antenna arms 20 and a metal layer 30 .

[0032] The dielectric plate 10 can be a plate-shaped material with high insulation performance and mechanical strength, such as glass fiber board (FR-4). The dielectric plate 10 has a first side and a second side that are arranged opposite to each other. Since the dielectric plate 10 is in a plate shape, it has two sides with larger areas than other sides. The two sides with larger areas are respectively the first side and the second side of the dielectric plate 10.

[0033] The two antenna arms 20 are spaced apart on the first side of the dielectric plate 10, and the gap between the two antenna arms 20 forms a slot structure 21. Both antenna arms 20 are metal structures and can be disposed on the first side of the dielectric plate 10 by electroplating or the like.

[0034] The metal layer 30 is disposed on the second side of the dielectric plate 10 . The metal layer 30 may be disposed on the second side of the dielectric plate 10 by electroplating or the like.

[0035] Each antenna arm 20 is connected to the metal layer 30 via a metal column 11, and the metal column 11 is disposed inside the dielectric plate 10. One end of the metal column 11 is connected to one of the antenna arms 20, and the other end of the metal column 11 is connected to the metal layer 30. Specifically, each antenna arm 20 is correspondingly provided with a metal column 11 to achieve connection with the metal layer 30.

[0036] The traditional magneto-electric dipole antenna includes two horizontal antenna arms and two short-circuited parallel plates vertically arranged and parallel to each other. The two horizontal antenna arms constitute the electric dipole part of the antenna, and the two short-circuited parallel plates constitute the magnetic dipole part of the antenna. In order to ensure the radiation performance of the antenna, the antenna of this structure has a relatively high requirement on the height of the short-circuited parallel plates, and the feeding structure is complex, which leads to a high profile.

[0037] In the embodiment of the utility model, two antenna arms 20 arranged at intervals constitute the electric dipole part of the directional antenna, and the part of the antenna arm 20 close to the slot structure 21, the slot structure 21, the metal column 11 and the metal layer 30 together constitute a circular cylindrical slot antenna, which is the magnetic dipole part of the directional antenna. In this embodiment, the cylindrical slot antenna replaces the two short-circuited parallel plates, which can reduce the overall height of the antenna, and transfer the height of the short-circuited parallel plates to the circumference of the cylindrical slot antenna, so that the overall cross-sectional height of the directional antenna can be effectively reduced, so that the directional antenna can be installed on the side with a larger area of ​​the panel AP, providing a larger design space for the antenna on the smaller side (the side with a smaller area) of the panel AP, which helps the antenna on the smaller side to improve its radiation performance. At the same time, the directional pattern of the magnetic electric dipole directional antenna is less affected by the wall. It should be noted that the panel AP is plate-shaped, and the side with a larger area is the side perpendicular to its thickness direction, and the side with a smaller area is the side parallel to its thickness direction.

[0038] The magnetic electric dipole directional antenna in the above embodiment includes a dielectric plate 10, two antenna arms 20 and a metal layer 30. The two antenna arms 20 are arranged at intervals on the first side of the dielectric plate 10, and the two antenna arms 20 form an electric dipole in the directional antenna. A metal column 11 is arranged inside the dielectric plate 10, and each antenna arm 20 and the metal layer 30 are connected by the metal column 11, so that the metal column 11, the metal layer 30 and the gap between the two antenna arms 20 together form a magnetic dipole of the directional antenna, which can also be called a cylindrical slot antenna. By converting the magnetic dipole in the traditional magnetoelectric dipole antenna into a cylindrical slot antenna, the axial length of the cylindrical slot antenna can be equivalent to its electrical length. Therefore, under the premise that the electrical length of the magnetic dipole is constant, the length of the cylindrical slot antenna on the first side and the second side of the dielectric plate 10 can be increased, and the height of the cylindrical slot antenna can be reduced, thereby reducing the cross-sectional height of the directional antenna, so that the magnetoelectric dipole directional antenna can be set on the side with a larger area of ​​the panel AP, providing a larger design space for the radiating antenna on the side, which helps the radiating antenna on the side to improve its radiation performance. At the same time, when the magnetoelectric dipole directional antenna is set on the side with a larger area of ​​the panel AP, the directional pattern is less affected by the wall, avoiding its performance from rapidly decaying.

[0039] In some embodiments of the present invention, please refer to Figure 1 and Figure 2 , a slot structure 21 is formed between the two antenna arms 20, and the slot structure 21 has an equal width along its length direction. The direction from one antenna arm 20 to the other antenna arm 20 can be called the width direction of the slot structure 21, and the direction perpendicular to the width direction of the slot structure 21 is the length direction. The equal width of the slot structure 21 along its length direction can be understood as the equal width of the slot structure 21 at all locations. In this way, the slot structure 21 of the cylindrical slot antenna has a uniform width, and the electromagnetic wave radiation energy along the length direction of the slot structure 21 is more uniform, which helps to improve the antenna performance.

[0040] In some embodiments of the present invention, please refer to Figures 2 to 4 , the number of metal pillars 11 connecting one of the antenna arms 20 and the metal layer 30 is multiple, and the arrangement direction of the multiple metal pillars 11 is parallel to the length direction of the slot structure 21. For the convenience of description, the multiple metal pillars 11 on the same antenna arm 20 can be called a metal pillar group, that is, one antenna arm 20 is correspondingly provided with a metal pillar group, and in the same metal pillar group, the arrangement direction of the multiple metal pillars 11 is parallel to the length direction of the slot structure 21. The space between the two metal pillar groups and the space between the metal layer 30 and the antenna arm 20 form a cylindrical slot antenna. In this embodiment, the cross-section of the cylindrical slot antenna is a regular rectangle, which can avoid the distortion of the radiation pattern of the directional antenna, and the efficiency of the directional antenna is higher.

[0041] The number and intervals of the metal pillars 11 are not limited herein.

[0042] When a plurality of metal pillars 11 are arranged in sequence along the length direction of the slot structure 21 , it is equivalent to forming a metal wall, and thus a columnar slot antenna with a ring-shaped cross section can be formed.

[0043] In some embodiments, the two metal column groups are respectively the first metal column group and the second metal column group, the two antenna arms 20 are respectively the first antenna arm 20 and the second antenna arm 20, one end of the first metal column group is connected to the first antenna arm 20, and one end of the second metal column group is connected to the second antenna arm 20. The distance between the first metal column group and the side of the first antenna arm 20 close to the slot structure 21, and the distance between the second metal column group and the side of the second antenna arm 20 close to the slot structure 21 are equal, which can also be understood as that the directional antenna is symmetrically arranged about the center line (the center line parallel to the length direction) of the slot structure 21, and accordingly, the directional pattern of the directional antenna is also symmetrically arranged, and the radiation energy in all directions is more balanced.

[0044] In some embodiments of the present invention, please refer to Figures 2 to 4 , one end of each metal column 11 is arranged at the edge of the metal layer 30, and the other end of each metal column 11 is arranged in the middle of the antenna arm 20 in the width direction of the slot structure 21. The edges of the metal layer 30 parallel to the length direction of the slot structure 21 are the first side and the second side, respectively, and the edges of the antenna arm 20 parallel to the length direction of the slot structure 21 are the first side and the second side, respectively. One end of one of the metal column groups is connected to the first side close to the metal layer 30, one end of the other metal column group is connected to the second side close to the metal layer 30, and the other ends of the two metal column groups are connected between the first side and the second side of the antenna arm 20. In this embodiment, the current on the side of the cylindrical slot antenna close to the metal layer 30 is basically distributed between the two metal column groups, which can reduce energy loss. The dimensions of the two antenna arms 20 in the width direction of the slot structure 21 are relatively large, which can improve the radiation intensity and radiation distance of the antenna.

[0045] In some embodiments of the present invention, please refer to Figure 2 The antenna arm 20 is arranged in a rectangular shape, and the length direction of the antenna arm 20 is parallel to the length direction of the slot structure 21. In this way, the length of the antenna arm 20 on the side close to the slot structure 21 is longer, which can increase the volume of the cylindrical slot antenna, extend the electrical length of the cylindrical slot antenna, and thus improve the gain of the directional antenna.

[0046] In some embodiments of the present invention, please refer to Figure 3 and Figure 4, the metal layer 30 is provided with a avoidance opening 31, and a feeding structure 40 is arranged inside the avoidance opening 31, and the feeding structure 40 is used to feed power to the antenna arm 20. The metal layer 30 is provided with a avoidance opening 31, and the second side of the dielectric plate 10 is not covered with metal at the avoidance opening 31, so that when the feeding structure 40 is arranged at the avoidance opening 31, it will not be connected and conducted with the metal layer 30. In the projection of the directional antenna along the thickness direction of the dielectric plate 10, the structure located inside the avoidance opening 31 can be understood as the internal structure of the avoidance opening 31. In other words, the interior of the avoidance opening 31 is not limited to the plane space where the metal layer 30 is located, but can also be a three-dimensional space in the thickness direction of the dielectric plate 10.

[0047] By setting the avoidance opening 31 , the feeding structure 40 can be designed inside the avoidance opening 31 and does not contact the metal layer 30 , thereby ensuring normal feeding of the antenna.

[0048] In some embodiments, the shape of the avoidance opening 31 is rectangular, circular, elliptical, etc.

[0049] In some embodiments, see Figure 3 and Figure 4 The feeding structure 40 includes two spaced feeding plates 41 and two feeding posts 42, one end of the feeding post 42 is connected to the feeding plate 41, and the other end is connected to the antenna arm 20. The two spaced feeding plates 41 are both located inside the avoidance opening 31 and on the second side of the dielectric plate 10. One end of the two feeding posts 42 is connected to the corresponding feeding plate 41, and the other end is connected to the corresponding antenna arm 20, so that the feeding plate 41 is connected to the corresponding antenna arm 20. Among them, the two feeding plates 41 are respectively connected to the outer conductive layer and the inner conductive layer of the feed line to realize the feeding of the two antenna arms 20.

[0050] In some embodiments of the present invention, the magneto-electric dipole directional antenna is a 5G band antenna, a 2.4G band antenna, etc., which is suitable for the communication frequency of a conventional panel AP.

[0051] In order to verify the magnetoelectric dipole directional antenna proposed in this utility model, Figures 1 to 4 The directional antenna in the simulation is obtained Figure 5 and Figure 6 , Figure 5 is the S parameter curve of the magneto-electric dipole directional antenna. Figure 6 is the directional pattern of the magneto-electric dipole directional antenna in the horizontal plane (a plane parallel to the first side of the dielectric plate 10). Figure 5 It can be seen that the directional antenna has good resonance in the 5G frequency band. Figure 6 It can be seen that the radiation pattern of the directional antenna in the horizontal plane is not greatly affected by the wall and the normalization is better.

[0052] The utility model also provides a communication device, the communication device comprising the magnetoelectric dipole directional antenna in any of the above embodiments. The communication device can be an AP device such as a wireless gateway, a wireless bridge, etc. For example, the communication device can be a panel AP.

[0053] The communication device provided by the utility model adopts the above-mentioned magnetic electric dipole directional antenna, including a dielectric plate 10, two antenna arms 20 and a metal layer 30. The two antenna arms 20 are arranged at intervals on the first side of the dielectric plate 10, and the two antenna arms 20 form an electric dipole in the directional antenna. A metal column 11 is arranged inside the dielectric plate 10, and each antenna arm 20 and the metal layer 30 are connected by the metal column 11, so that the metal column 11, the metal layer 30 and the gap between the two antenna arms 20 jointly form a magnetic dipole of the directional antenna, which can also be called a cylindrical slot antenna. By converting the magnetic dipole in the traditional magnetoelectric dipole antenna into a cylindrical slot antenna, the axial length of the cylindrical slot antenna can be equivalent to its electrical length. Therefore, under the premise that the electrical length of the magnetic dipole is constant, the length of the cylindrical slot antenna on the first side and the second side of the dielectric plate 10 can be increased, and the height of the cylindrical slot antenna can be reduced, thereby reducing the cross-sectional height of the cylindrical slot antenna, so that the magnetoelectric dipole directional antenna can be set on the side with a larger area of ​​the panel AP, providing a larger design space for the radiating antenna on the side, which helps the antenna on the side to improve its radiation performance. At the same time, when the magnetoelectric dipole directional antenna is set on the side with a larger area of ​​the panel AP, the directional pattern is less affected by the wall, avoiding its performance from rapidly decaying.

[0054] In some embodiments of the utility model, the communication device also includes a shell structure and two radiating antennas, and the two radiating antennas and the above-mentioned directional antenna are all mounted on the shell structure. The shell structure has a first mounting surface perpendicular to its thickness direction, and also has two second mounting surfaces parallel to its thickness direction. It can be understood that the size of one direction of the shell structure is much smaller than the size in other directions, and the direction where the smaller size is located is the thickness direction of the shell structure. The area of ​​the first mounting surface of the shell structure perpendicular to its thickness direction is relatively large, and the area of ​​the second mounting surface parallel to the thickness direction is relatively small. The magnetoelectric dipole directional antenna is arranged on the first mounting surface, and the two radiating antennas are respectively arranged on the two second mounting surfaces.

[0055] The magnetoelectric dipole directional antenna has the characteristic of low profile, so the magnetoelectric dipole directional antenna can be installed on the first installation surface without occupying the position of the second installation surface, so that the radiating antenna has a larger design and installation space, and the performance of the radiating antenna is improved. At the same time, the radiation direction of the magnetoelectric dipole directional antenna is mainly parallel to the first installation surface, and is less affected by the wall, and the radiation will not decay rapidly.

[0056] In some embodiments, the magneto-electric dipole directional antenna is a 5G antenna, and the radiating antenna is a 2.4G antenna, a 5G antenna, a dual-band antenna, etc., which is suitable for the communication frequency of a conventional panel AP.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetoelectric dipole directional antenna, characterized in that: The invention comprises a dielectric plate, two antenna arms and a metal layer, wherein the dielectric plate has a first side and a second side which are arranged opposite to each other, the two antenna arms are arranged at intervals on the first side of the dielectric plate, the metal layer is arranged on the second side of the dielectric plate, each antenna arm is connected to the metal layer via a metal column, and the metal column is arranged inside the dielectric plate.

2. The magnetoelectric dipole directional antenna according to claim 1, characterized in that: A slot structure is formed between the two antenna arms, and the slot structure has the same width at all locations along its length direction.

3. The magnetoelectric dipole directional antenna according to claim 2, characterized in that: There are multiple metal pillars connecting one of the antenna arms and the metal layer, and the arrangement direction of the multiple metal pillars is parallel to the length direction of the slot structure.

4. The magnetoelectric dipole directional antenna according to claim 3, characterized in that: One end of each of the metal pillars is connected to the edge of the metal layer, and the other end of each of the metal pillars is connected to the middle of the antenna arm in the width direction of the slot structure.

5. The magnetoelectric dipole directional antenna according to claim 2, characterized in that: The antenna arm is arranged in a rectangular shape, and the length direction of the antenna arm is parallel to the length direction of the slot structure.

6. The magnetoelectric dipole directional antenna according to claim 1, characterized in that: The metal layer is provided with an escape opening, and a feeding structure for feeding power to the antenna arm is arranged inside the escape opening.

7. The magnetoelectric dipole directional antenna according to claim 6, characterized in that: The feeding structure comprises two feeding plates arranged at intervals and two feeding posts, one end of the feeding post is connected to the feeding plate, and the other end of the feeding post is connected to the antenna arm.

8. The magnetoelectric dipole directional antenna according to any one of claims 1 to 7, characterized in that: The magnetoelectric dipole directional antenna is a 5G frequency band antenna or a 2.4G frequency band antenna.

9. A communication device, characterized in that: The invention comprises the magneto-electric dipole directional antenna as described in any one of claims 1 to 8.

10. The communication device according to claim 9, characterized in that: The communication device also includes a shell structure and two radiating antennas. The shell structure has a first mounting surface perpendicular to its thickness direction and two second mounting surfaces parallel to its thickness direction. The magnetoelectric dipole directional antenna is arranged on the first mounting surface, and the two radiating antennas are respectively arranged on the two second mounting surfaces.