Dual-polarized magneto-electric dipole antenna, array antenna, and communication base station

Abstract

The present disclosure relates to the technical field of antennas, and provides a a dual-polarized magneto-electric dipole antenna, an antenna array, and a communication base station. In the dual-polarized magneto-electric dipole antenna, two conductive rings among a plurality of conductive rings which are arranged spaced apart in a first direction form a first electric dipole, and two conductive rings among the plurality of conductive rings which are arranged spaced apart in a second direction form a second electric dipole. Each conductive ring comprises a first edge. A plurality of short-circuiting conductive strips are located between the conductive rings and a ground plate. One end of each short-circuiting conductive strip is electrically connected to a first edge, and the other end of the short-circuiting conductive strip is electrically connected to the ground plate. Two short-circuiting conductive strips among the plurality of short-circuiting conductive strips which are electrically connected to the first electric dipole and a portion of the ground plate located between the two short-circuiting conductive strips form a first magnetic dipole. Two short-circuiting conductive strips among the plurality of short-circuiting conductive strips which are electrically connected to the second electric dipole and a portion of the ground plate located between the two short-circuiting conductive strips form a second magnetic dipole. The short-circuiting conductive strips are obliquely arranged relative to the ground plate.

Description

Dual-polarized magnetoelectric dipole antenna, array antenna and communication base station Technical Field

[0001] The present disclosure relates to the field of antenna technology, and in particular to a dual-polarized magnetoelectric dipole antenna, an array antenna, and a communication base station. Background Art

[0002] To meet the growing demand for high integration and miniaturization in base stations, base station antennas need to be reduced in size. This reduction in antenna size reduces wind loads and lowers manufacturing, installation, and maintenance costs. Dual-polarized antennas increase channel capacity and achieve polarization diversity, mitigating multipath effects. Therefore, they are widely used in base stations. Therefore, there is an urgent need for a miniaturized dual-polarized antenna.

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide a dual-polarized magnetoelectric dipole antenna, an array antenna, and a communication base station.

[0005] The embodiments of the present disclosure adopt the following technical solutions:

[0006] In one aspect, a dual-polarized magnetoelectric dipole antenna is provided, comprising:

[0007] ground plate;

[0008] four conductive rings, the four conductive rings being opposite to and spaced apart from the ground plane, the four conductive rings being arranged in a circular array around an origin, two of the four conductive rings spaced apart along a first direction forming a first electric dipole, and two of the four conductive rings spaced apart along a second direction forming a second electric dipole, the first direction and the second direction being parallel to the reference plane and perpendicular to each other, and the conductive rings including a first side adjacent to the origin;

[0009] Four short-circuit conductive strips, the four short-circuit conductive strips are located between the conductive ring and the grounding plate, and the short-circuit conductive strips correspond to the conductive ring one-to-one, one end of the short-circuit conductive strip is electrically connected to the first side, and the other end of the short-circuit conductive strip is electrically connected to the grounding plate, two of the four short-circuit conductive strips electrically connected to the first electric dipole and the grounding plate located between the two short-circuit conductive strips form a first magnetic dipole, and two of the four short-circuit conductive strips electrically connected to the second electric dipole and the grounding plate located between the two short-circuit conductive strips form a second magnetic dipole, wherein the short-circuit conductive strips are arranged obliquely relative to the grounding plate.

[0010] In some embodiments, the conductive ring includes a head, a tail, and two side edges connected between the head and the tail, the head and the tail are arranged opposite to each other along the radial direction of the circular array, and the tail is adjacent to the origin; along the radial direction of the circular array, the distance that the head protrudes from the side edges is less than the distance that the tail protrudes from the side edges.

[0011] In some embodiments, the head portion has a first angle, the tail portion has a second angle, and the first angle is greater than the second angle.

[0012] In some embodiments, the conductive ring includes a head, a tail, and two side edges connected between the head and the tail, the head and the tail are arranged opposite to each other along the radial direction of the circular array, and the tail is adjacent to the origin, the head has a first angle, and the tail has a second angle, one of the first angle and the second angle is an obtuse angle, and the other is an acute angle.

[0013] In some embodiments, the conductive ring includes a head, a tail, and two side edges, the head and the tail are arranged opposite to each other along the radial direction of the circular array, and the tail is adjacent to the origin, the two side edges are connected between the head and the tail, and the distance between the two side edges gradually increases from the tail to the head.

[0014] In some embodiments, the conductive ring further includes a second side and a third side, the second side is located at one end of the first side, and the third side is located at the other end of the first side; in two adjacent conductive rings, the second side of one conductive ring is parallel to and opposite to the third side of the other conductive ring.

[0015] In some embodiments, a distance between the second side and the third side that are parallel and opposite to each other is greater than or equal to 1 mm.

[0016] In some embodiments, the conductive ring includes a flat portion and a bent portion, the bent portion is located on a side of the flat portion away from the origin, and the bent portion is bent in a direction away from or toward the ground plate.

[0017] In some embodiments, the orthographic projection of the conductive ring on the ground plane is polygonal, elliptical, or irregular in shape.

[0018] In some embodiments, the dual-polarized magnetoelectric dipole antenna further includes two feeding structures, the feeding structure including a first part, a second part, a third part, and a fourth part connected in sequence, the second part and the fourth part are respectively parallel to and spaced apart from the two short-circuit conductive strips of the same magnetic dipole, the first part and the third part are parallel to the ground plane, and the first part is configured to receive signals.

[0019] In some embodiments, the feeding structure further includes a fifth portion connected to an end of the fourth portion away from the third portion, the fifth portion is parallel to the ground plate, and the fifth portion is configured to receive a signal.

[0020] In some embodiments, the dual-polarized magnetoelectric dipole antenna further includes a differential circuit, wherein the differential circuit includes two output ends, and the two output ends are configured to output signals with opposite phases, wherein one of the output ends is electrically connected to the first part, and the other output end is electrically connected to the fifth part.

[0021] In some embodiments, the dual-polarized magnetoelectric dipole antenna further includes a dielectric plate, the ground plate is connected to a side of the dielectric plate facing the conductive ring, and the differential circuit is connected to a side of the dielectric plate away from the conductive ring.

[0022] In some embodiments, the dual-polarized magnetoelectric dipole antenna further includes a reflector, which is located on a side of the dielectric plate away from the conductive ring, and is spaced apart from the dielectric plate.

[0023] In some embodiments, the dual-polarized magnetoelectric dipole antenna further includes a parasitic patch, which is located on a side of the conductive ring away from the ground plane, and is spaced apart from the conductive ring.

[0024] In some embodiments, a first slit is provided on the parasitic patch.

[0025] On the other hand, an antenna array is provided, comprising a plurality of the dual-polarized magneto-electric dipole antennas, wherein the plurality of dual-polarized magneto-electric dipole antennas are arranged in an array.

[0026] In some embodiments, the dual-polarized magnetoelectric dipole antenna includes a conductive ring and a reflector. An isolation strip is provided between two adjacent dual-polarized magnetoelectric dipole antennas, and the isolation strip is connected to a side of the reflector facing the conductive ring.

[0027] In some embodiments, the isolation strip is provided with a second slit.

[0028] On the other hand, a communication base station is provided, comprising the dual-polarized magnetoelectric dipole antenna or the antenna array. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] FIG1 is a perspective schematic diagram of a dual-polarized magnetoelectric dipole antenna provided by an embodiment of the present disclosure;

[0031] FIG2 is a top view of a dual-polarized magnetoelectric dipole antenna provided in an embodiment of the present disclosure;

[0032] FIG3 is a view taken along the direction A of FIG1 ;

[0033] FIG4 is a B-direction view of FIG1 ;

[0034] FIG5 is a schematic diagram of a conductive ring according to an embodiment of the present disclosure;

[0035] FIG6 is a schematic diagram of another conductive ring according to an embodiment of the present disclosure;

[0036] FIG7 is a perspective schematic diagram of another conductive ring according to an embodiment of the present disclosure;

[0037] FIG8 is a side view of the conductive ring shown in FIG7;

[0038] FIG9 is a schematic diagram of the arrangement of four conductive rings in a dual-polarized magnetoelectric dipole antenna provided by an embodiment of the present disclosure;

[0039] FIG10 is a perspective schematic diagram of an embodiment of the present disclosure in which the conductive ring and the short-circuit conductive strip are integrally formed;

[0040] FIG11 is a schematic diagram of a partial structure of a dual-polarized magnetoelectric dipole antenna provided in an embodiment of the present disclosure;

[0041] FIG12 is a top view of FIG11;

[0042] FIG13 is a schematic diagram of the relative positions of two feeding structures in a dual-polarized magnetoelectric dipole antenna according to an embodiment of the present disclosure;

[0043] FIG14 is a schematic diagram of a feeding structure according to an embodiment of the present disclosure;

[0044] FIG15 is a schematic diagram of another conductive ring according to an embodiment of the present disclosure;

[0045] FIG16 is a schematic diagram of the arrangement of the conductive rings shown in FIG15 ;

[0046] FIG17 is a perspective schematic diagram of another dual-polarized magnetoelectric dipole antenna provided by an embodiment of the present disclosure;

[0047] Figure 18 is a side view of Figure 17;

[0048] FIG19 is a perspective schematic diagram of another dual-polarized magnetoelectric dipole antenna provided by an embodiment of the present disclosure;

[0049] FIG20 is a side view of FIG19;

[0050] FIG21 is a schematic diagram of a feeding network in an embodiment of the present disclosure;

[0051] FIG22 is a perspective schematic diagram of another dual-polarized magnetoelectric dipole antenna provided by an embodiment of the present disclosure;

[0052] FIG23 is a side view of FIG22;

[0053] 24 to 27 exemplarily illustrate several possible structures of the parasitic patch;

[0054] FIG28 is a schematic diagram of a dual-polarized magnetoelectric dipole antenna provided in an embodiment of the present disclosure;

[0055] FIG29 is a curve showing the variation of the S11 parameter of the dual-polarized magnetoelectric dipole antenna shown in FIG1 with frequency;

[0056] FIG30 is a gain curve of the dual-polarized magnetoelectric dipole antenna shown in FIG1 ;

[0057] FIG31 is a schematic diagram of a partial structure of an antenna array according to an embodiment of the present disclosure;

[0058] FIG32 is a schematic diagram of an isolation strip according to an embodiment of the present disclosure;

[0059] FIG33 is a schematic diagram of another arrangement of conductive rings in an embodiment of the present disclosure.

[0060] Figures and Symbols: 1-conductive ring; 2-ground plate; 3-short-circuit conductive strip; 4-feed structure; 5-dielectric plate; 6-reflector; 7-isolation strip; 9-parasitic patch; 10-radome; 1a-head; 1b-tail; 11-first side; 12-second side; 13-third side; 14-side; α-first angle; β-second angle; 101-flat portion; 102-bend portion; O-origin; X-first direction; Y-second direction; 41-first portion; 42-second portion; 43-third portion; 44-fourth portion; 45-fifth portion; 46-connecting post; 81-combining end; 82-first shunt end; 83-second shunt end; 84-first differential circuit; 85-second differential circuit; 86-first output end; 87-second output end; 88-third output end; 89-fourth output end; 91-first gap; 71-second gap. Specific embodiments

[0061] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0062] In the embodiments of the present disclosure, words such as "first", "second", "third", and "fourth" are used to distinguish between identical or similar items with substantially the same functions and effects. This is only for the purpose of clearly describing the technical solutions of the embodiments of the present disclosure, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0063] In the embodiments of the present disclosure, “a plurality of” means two or more, and “at least one” means one or more, unless otherwise clearly and specifically defined.

[0064] In the embodiments of the present disclosure, the orientations or positional relationships indicated by terms such as “upper” and “lower” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present disclosure and simplifying the description. They 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. Therefore, they cannot be understood as limitations on the present disclosure.

[0065] Mobile communication technology has evolved through 1G, 2G, 3G, and 4G, and has now reached the fifth generation of mobile communication technology (5G). 5G offers advantages such as fast transmission speeds, wide network coverage, low power consumption, and low latency. Compared to 4G, 5G's increased communication frequency reduces the coverage range of base stations used for 5G communications. Therefore, the number of base stations needs to be increased to improve base station density, and the number of antennas on each base station also needs to be increased.

[0066] To meet the growing demand for high integration and miniaturization of base stations, base station antennas need to be reduced in size. This reduction in antenna size reduces wind loads and lowers manufacturing, installation, and maintenance costs. Reducing the antenna's profile is a key development direction, and low-profile antennas have become a research focus in the wireless communications field. Dual-polarized antennas increase channel capacity and achieve polarization diversity to mitigate multipath effects, making them widely used in base stations.

[0067] In view of this, an embodiment of the present disclosure provides a dual-polarized magnetoelectric dipole antenna with a smaller size.

[0068] The dual-polarized magnetoelectric dipole antenna provided in the embodiment of the present disclosure can be applied to a base station. The base station involved in the embodiment of the present disclosure can also be referred to as a radio access network (RAN) device. The base station can be a base station (base transceiver station, BTS) in global system of mobile communication (GSM) or code division multiple access (CDMA), or a base station (nodeB, NB) in wideband code division multiple access (WCDMA), or an evolutionary base station (eNB or eNodeB) in long term evolution (LTE), or a relay station or access point, or a base station in a 5G network, or a base station in a future communication system, etc., which is not limited here.

[0069] In some possible implementations, the dual-polarized magnetoelectric dipole antenna provided by the embodiments of the present disclosure may also be applied to terminal devices. The terminal device involved in the embodiments of the present disclosure may be a device with wireless transceiver functions. The terminal device involved in the embodiments of the present disclosure may be deployed on land, including indoors or outdoors or on a vehicle; it may also be deployed on the water surface (such as a ship, etc.); it may also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The terminal device involved in the embodiments of the present disclosure may be a user equipment (UE), wherein the UE includes a vehicle-mounted device with a wireless communication function, etc. The terminal device may also be a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like.

[0070] Of course, the dual-polarized magnetoelectric dipole antenna provided in the embodiments of the present disclosure can also be applied to other scenarios, which are not listed here one by one.

[0071] Figure 1 is a perspective schematic diagram of a dual-polarized magneto-electric dipole antenna provided in an embodiment of the present disclosure, Figure 2 is a top view of a dual-polarized magneto-electric dipole antenna provided in an embodiment of the present disclosure, Figure 3 is a view taken along the direction A of Figure 1 , and Figure 4 is a view taken along the direction B of Figure 1 As shown in Figures 1 to 4 , the dual-polarized magneto-electric dipole antenna includes a ground plate 2, four conductive rings 1, and four short-circuit conductive strips 3.

[0072] The conductive ring 1 refers to a ring-shaped structure capable of conducting electricity. The conductive ring 1 may be a closed ring-shaped structure, so that current can circulate along the circumference of the conductive ring 1 .

[0073] The conductive ring 1 may be in the shape of a polygon, an ellipse, or an irregular shape. For example, when the conductive ring 1 is in the shape of a polygon, the shape of the conductive ring 1 may be a triangle, a trapezoid, a rectangle, a pentagon, a hexagon (as shown in FIG5 ), a heptagon, an octagon (as shown in FIG6 ), etc. For another example, when the conductive ring 1 is in the shape of an irregular shape, the shape of the conductive ring 1 may be a teardrop shape, i.e., one end of the conductive ring 1 is relatively pointed, and the other end of the conductive ring 1 is relatively blunt.

[0074] The shape of the conductive ring 1 refers to the shape of the area enclosed by the outer contour of the conductive ring 1 . A hollow area is provided in the area enclosed by the outer contour of the conductive ring 1 , so that the conductive ring 1 is in a closed ring shape.

[0075] Figure 5 is a schematic diagram of a conductive ring 1 according to an embodiment of the present disclosure, Figure 6 is a schematic diagram of another conductive ring 1 according to an embodiment of the present disclosure, Figure 7 is a perspective schematic diagram of yet another conductive ring 1 according to an embodiment of the present disclosure, and Figure 8 is a side view of the conductive ring 1 shown in Figure 7. For example, as shown in Figures 5 to 8, the shape of the hollowed-out area is the same as the shape of the area enclosed by the outer contour of the conductive ring 1, so that the cross-sectional dimensions of the conductive ring 1 are approximately the same at all locations, that is, the resistance of the conductive ring 1 is approximately the same at all locations. For example, if the area enclosed by the outer contour of the conductive ring 1 is hexagonal, the shape of the hollowed-out area is also hexagonal, and the two hexagons have the same shape.

[0076] The conductive ring 1 can be a planar structure or a three-dimensional structure. Continuing to refer to Figures 5 and 6, when the conductive ring 1 is a planar structure, the various parts of the conductive ring 1 are located in the same plane; as shown in Figures 7 and 8, when the conductive ring 1 is a three-dimensional structure, at least some areas of the conductive ring 1 are not in the same plane as other areas. For example, the conductive ring 1 includes a flat portion 101 and a bent portion 102, and the various parts of the flat portion 101 are located in the same plane. The bent portion 102 is bent relative to the flat portion 101, so that the bent portion 102 and the flat portion 101 are not in the same plane. Among them, when the conductive ring 1 is a three-dimensional structure, the conductive ring 1 can include one bent portion 102 or multiple bent portions 102.

[0077] It should be noted that, when the conductive ring 1 is a three-dimensional structure, the shape of the conductive ring 1 refers to the shape of the conductive ring 1 after being flattened into a planar structure.

[0078] In practical applications, the conductive ring 1 can be made of a metal material with low electrical resistance, such as copper or aluminum. For example, the conductive ring 1 can be stamped from a metal sheet, such as a copper plate or an aluminum plate, using a stamping process. In another example, the conductive ring 1 can be formed by connecting metal wires, such as copper wire or aluminum wire, end to end. Of course, the conductive ring 1 can also be made using other processes, such as 3D printing, and the present disclosure does not limit the manufacturing process of the conductive ring 1.

[0079] Figure 9 is a schematic diagram illustrating the arrangement of four conductive rings 1 in a dual-polarized magnetoelectric dipole antenna provided by an embodiment of the present disclosure. As shown in Figure 9 , the four conductive rings 1 are arranged in a circular array around an origin O. The dotted circle in Figure 9 represents the outer circle of the circular array, with the center of the outer circle being the origin O.

[0080] For example, a dual-polarized magnetic electric dipole antenna has a virtual reference plane (the plane where the figure shown in FIG9 is located). The reference plane has a first direction X and a second direction Y that are perpendicular to each other. The intersection of the first direction X and the second direction Y is the origin O. Two conductive loops 1 are arranged at intervals along the first direction X, with the origin O located at the midpoint of these two conductive loops 1. Another two conductive loops 1 are arranged at intervals along the second direction Y, with the origin O located at the midpoint of these two conductive loops 1. The two conductive loops 1 arranged at intervals along the first direction X form a first electric dipole, and the two conductive loops 1 arranged at intervals along the second direction Y form a second electric dipole.

[0081] Exemplarily, when the conductive rings 1 are planar structures, the four conductive rings 1 are all located in a reference plane (as shown in FIG9 ), or there is an acute angle between the plane where the conductive rings 1 are located and the reference plane.

[0082] Exemplarily, when the conductive ring 1 is a three-dimensional structure, the flat portions 101 of the four conductive rings 1 are located in a reference plane, or an acute angle is formed between the plane where the flat portions 101 are located and the reference plane.

[0083] It should be noted that a gap is provided between any two adjacent conductive rings 1. The "any two adjacent conductive rings 1" herein may be two conductive rings 1 adjacent along the first direction X or the second direction Y, or two conductive rings 1 adjacent along the circumference of the circular array. Providing a gap between any two adjacent conductive rings 1 prevents short circuits caused by contact between the conductive rings 1.

[0084] Along the radial direction of the circular array (radially of the dashed circle in Figure 9 ), the dimension of the conductive ring 1 is its length; along the radial direction perpendicular to the circular array, the dimension of the conductive ring 1 is its width. The length of a conductive ring 1 can be greater than its width to prevent contact between adjacent conductive rings 1. For example, if the conductive ring 1 is elliptical, the major axis of the conductive ring 1 is along the radial direction of the circular array, and the minor axis of the conductive ring 1 is perpendicular to the radial direction of the circular array.

[0085] The structures and sizes of the four conductive rings 1 may be the same or different. In the embodiment disclosed herein, only the four conductive rings 1 having the same structure and size are used as an example for description.

[0086] Continuing with reference to Figures 5 and 6 , each conductive ring 1 has a first edge 11, and the first edge 11 is close to the origin O. For example, the first edge 11 of the conductive ring 1 is closest to the origin O, or the first edge 11 is directly opposite the origin O. The first edge 11 can be a straight edge, a curved edge, a broken line edge, etc.

[0087] For example, with continued reference to FIG5 and FIG6 , when the shape of the conductive ring 1 is a polygon, the conductive ring 1 has a second angle β toward the origin O, and a cut-angle structure is provided on the side of the second angle β toward the origin O to form a first edge 11 .

[0088] The circumference of the conductive loop 1 can be half the wavelength at the resonant frequency of the dual-polarized magneto-electric dipole antenna. Since the conductive loop 1 is annular in shape, the overall size of the conductive loop 1 is reduced while maintaining the length of the current path, which helps to miniaturize the dual-polarized magneto-electric dipole antenna.

[0089] The ground plate 2 is a plate-shaped member made of a conductive material. For example, the ground plate 2 is a metal plate such as a copper plate or an aluminum plate.

[0090] Continuing with Figures 1 to 4 , the ground plate 2 is positioned opposite and spaced apart from the four conductive rings 1. For example, when the conductive rings 1 are planar, the ground plate 2 is parallel to the plane of the conductive rings 1 and spaced apart. For another example, when the conductive rings 1 are three-dimensional, the ground plate 2 is parallel to and spaced apart from the flat portions 101 of the conductive rings 1, and the bent portions 102 do not contact the ground plate 2.

[0091] Exemplarily, the ground plate 2 is parallel to the reference plane and spaced apart.

[0092] The ground plate 2 may have an area facing each conductive ring 1. Furthermore, the areas facing each conductive ring 1 may be equal. For example, the ground plate 2 may be a centrally symmetrical figure, and the orthographic projection of the origin O of the circular array on the ground plate 2 is located at the geometric center of the ground plate 2.

[0093] The shape of the ground plate 2 can be circular, or a regular polygon such as a square or a regular octagon, and the orthographic projections of the conductive rings 1 on the ground plate 2 have the same shape and size. The drawings of the embodiments of the present disclosure only illustrate the ground plate 2 as a square.

[0094] The disclosed embodiment does not limit the size of the grounding plate 2; the grounding plate 2 may be partially or fully aligned with the conductive ring 1. While meeting performance requirements, the dual-polarized magnetoelectric dipole antenna can be made lighter by reducing the size of the grounding plate 2.

[0095] In some embodiments, the size of the ground plate 2 can be increased so that the positive projection of the conductive ring 1 on the ground plate 2 is located within the range of the ground plate 2. During the operation of the dual-polarized magnetoelectric dipole antenna, the ground plate 2 can reflect electromagnetic waves, that is, the ground plate 2 plays a directional role.

[0096] In practical applications, the ground plate 2 can be made by cutting a metal plate such as a copper plate or an aluminum plate. The ground plate 2 can also be a conductive layer formed on the surface of a substrate. For example, the ground plate 2 is a conductive layer formed on the surface of a printed circuit board (PCB). The present disclosure does not limit the method for preparing the ground plate 2.

[0097] Continuing with Figures 1 to 4 , the short-circuit conductive strip 3 is generally elongated and includes two opposing ends that are electrically conductive. The short-circuit conductive strip 3 is positioned between the conductive ring 1 and the ground plate 2 . One end of the short-circuit conductive strip 3 is electrically connected to the first edge 11 of the conductive ring 1 , and the other end is electrically connected to the ground plate 2 , thereby electrically connecting the conductive ring 1 and the ground plate 2 via the short-circuit conductive strip 3 .

[0098] Exemplarily, the short-circuit conductive bar 3 is made of metal such as copper, aluminum, etc. Of course, the short-circuit conductive bar 3 can also be made of other materials.

[0099] The material of the short-circuit conductive strip 3 can be the same as or different from the material of the conductive ring 1. Figure 10 is a three-dimensional schematic diagram of the conductive ring 1 and the short-circuit conductive strip 3 in the embodiment of the present disclosure when the conductive ring 1 and the short-circuit conductive strip 3 are an integrally formed structure. As shown in Figure 10, when the material of the short-circuit conductive strip 3 is the same as the material of the conductive ring 1, the short-circuit conductive strip 3 can be an integrally formed structure with the conductive ring 1. The integrally formed structure here refers to an integral structure processed by an integral forming process, which is different from connecting the short-circuit conductive strip 3 and the conductive ring 1 into an integral structure by welding, bonding, clamping, threading, etc.

[0100] For example, the short-circuit conductive bar 3 and the conductive ring 1 are formed into an integral structure through a stamping process, or the short-circuit conductive bar 3 and the conductive ring 1 are printed into an integral structure through a 3D printing process, or the short-circuit conductive bar 3 and the conductive ring 1 are formed into an integral structure by electroplating on the surface of the support member, etc.

[0101] For example, when the short-circuit conductive strip 3 and the conductive ring 1 are prepared by a stamping process, the conductive ring 1 and the strip connected to the first side 11 of the conductive ring 1 are first punched out of the metal plate by a stamping machine, and then the strip is bent along the first side 11 to form the short-circuit conductive strip 3.

[0102] Of course, the shape of the short-circuit conductive bar 3 is not limited to the above-mentioned sheet shape. The short-circuit conductive bar 3 can also be in the shape of a column, a frustum, a prism, etc., and can be flexibly configured as needed in actual application.

[0103] The shorting strip 3 and the conductive ring 1 are integrally formed, reducing the number of parts in the dual-polarized magneto-electric dipole antenna and simplifying assembly. Furthermore, the integral formation of the shorting strip 3 and the conductive ring 1 allows for more precise relative positioning of the shorting strip 3 and the conductive ring 1, preventing relative displacement of the shorting strip 3 and the conductive ring 1 due to assembly errors, which could affect the performance of the dual-polarized magneto-electric dipole antenna.

[0104] In some embodiments, the short-circuit conductive strip 3 is also used to support the conductive ring 1, so that a certain distance is maintained between the conductive ring 1 and the ground plate 2. Compared to providing a separate support member to support the conductive ring 1, supporting the conductive ring 1 with the short-circuit conductive strip 3 reduces the number of parts in the dual-polarized magnetoelectric dipole antenna, reduces the assembly process, and reduces the weight of the dual-polarized magnetoelectric dipole antenna, thereby facilitating lightweighting of the dual-polarized magnetoelectric dipole antenna.

[0105] Exemplarily, the short-circuit conductive bar 3 and the conductive ring 1 are an integrally formed structure, and the other end of the short-circuit conductive bar 3 is welded to the ground plate 2, so that the conductive ring 1 has a cantilever structure.

[0106] Of course, the dual-polarized magnetoelectric dipole antenna can also be provided with a support member. The support member and the short-circuit conductive strip 3 jointly support the conductive ring 1, thereby making the conductive ring 1 more stable and preventing the conductive ring 1 from deviating from the theoretical position and affecting antenna performance. For example, the support member is located between the ground plate 2 and the conductive ring 1, and the support member supports the end of the conductive ring 1 away from the short-circuit conductive strip 3.

[0107] The short-circuit conductive bars 3 correspond to the conductive rings 1 one by one, that is, each conductive ring 1 is connected to a short-circuit conductive bar 3 .

[0108] For example, four short-circuit conductive strips 3 are arranged in a circular array around an origin O. Two of the four short-circuit conductive strips 3 are spaced apart along a first direction X, and these two short-circuit conductive strips 3 and the ground plate 2 located between them form a first magnetic dipole. The other two of the four short-circuit conductive strips 3 are spaced apart along a second direction Y, and these two short-circuit conductive strips 3 and the ground plate 2 located between them form a second magnetic dipole. The first magnetic dipole is electrically connected to the first electric dipole, resulting in a dual-polarized magnetic-electric dipole antenna having a first polarization direction. The second magnetic dipole is electrically connected to the second electric dipole, resulting in a second polarization direction, with the first polarization direction and the second polarization direction being perpendicular. For example, the first magnetic dipole and the first electric dipole are polarized at +45°, and the second magnetic dipole and the second electric dipole are polarized at -45°.

[0109] Among them, the dual-polarized magnetoelectric dipole antenna also has a virtual first plane and a second plane, the first plane is the plane where the first direction X and the normal of the ground plate 2 are located, the second plane is the plane where the second direction Y and the normal of the ground plate 2 are located, the two short-circuit conductive strips 3 in the first magnetic dipole are located in the first plane, and the two short-circuit conductive strips 3 in the second magnetic dipole are located in the second plane.

[0110] Figure 11 is a schematic diagram of a partial structure of a dual-polarized magnetic electric dipole antenna provided by an embodiment of the present disclosure. The plane (paper) on which the figures are shown in the figure is the first plane, the left-right direction in the figure is the first direction X, the two conductive rings 1 in the figure form the first electric dipole, and the two short-circuited conductive strips 3 in the figure form the first magnetic dipole. Figure 12 is a top view of Figure 11.

[0111] To meet the performance requirements of the dual-polarized magneto-electric dipole antenna, the electrical lengths of the first magnetic dipole and the second magnetic dipole need to meet certain conditions. For example, the electrical lengths of the first magnetic dipole and the second magnetic dipole are equal to half the wavelength at the resonant frequency of the dual-polarized magneto-electric dipole antenna.

[0112] Continuing with Figure 11, taking the first magnetic dipole as an example, the electrical length of the first magnetic dipole is the sum of the lengths of two short-circuiting conductive strips 3 spaced apart along the first direction X, plus the distance between the connection points of these two short-circuiting conductive strips 3 and the ground plate 2. The length of a short-circuiting conductive strip 3 is the distance from the end of the short-circuiting conductive strip 3 closest to the conductive ring 1 to the end closest to the ground plate 2. The electrical length of the second magnetic dipole is similar and will not be further described here.

[0113] When the length of the short-circuit conductive strip 3 is perpendicular to the ground plane 2, the distance between the conductive ring 1 and the ground plane 2 is equal to the length of the short-circuit conductive strip 3. In this case, the cross-sectional dimensions of the dual-polarized magnetoelectric dipole antenna are relatively large. Therefore, to reduce the cross-sectional dimensions of the dual-polarized magnetoelectric dipole antenna, the short-circuit conductive strip 3 is tilted relative to the ground plane 2. This tilted arrangement means that the length of the short-circuit conductive strip 3 is neither perpendicular nor parallel to the ground plane 2, but rather that the angle between the length of the short-circuit conductive strip 3 and the ground plane 2 is less than 90°.

[0114] After the short-circuit conductive strip 3 is tilted relative to the ground plate 2, when the length of the short-circuit conductive strip 3 remains constant, the distance between the conductive ring 1 and the ground plate 2 can be reduced, thereby reducing the cross-sectional size of the dual-polarized magnetoelectric dipole antenna and further reducing the volume of the dual-polarized magnetoelectric dipole antenna.

[0115] Illustratively, the two short-circuit conductive strips 3 in the first magnetic dipole are still located in the first plane after being tilted, as shown in FIG11 ; the two short-circuit conductive strips 3 in the second magnetic dipole are still located in the second plane after being tilted.

[0116] For example, after the short-circuit conductive strips 3 are tilted, the distance between the connection points of the two short-circuit conductive strips 3 and the ground plate 2 in the same magnetic dipole increases. For example, after the short-circuit conductive strips 3 are tilted, the four short-circuit conductive strips 3 are located on the four edges of the quadrangular pyramid. If the electrical length of the magnetic dipole remains constant, the increased distance between the connection points of the two short-circuit conductive strips 3 and the ground plate 2 can reduce the length of the short-circuit conductive strips 3, thereby reducing the distance between the conductive ring 1 and the ground plate 2, and further reducing the cross-sectional dimensions of the dual-polarized magnetoelectric dipole antenna.

[0117] FIG13 is a schematic diagram of the relative positions of two feeding structures 4 in a dual-polarized magneto-electric dipole antenna according to an embodiment of the present disclosure, and FIG14 is a schematic diagram of a feeding structure 4 according to an embodiment of the present disclosure. As shown in FIG11 to FIG14 , the dual-polarized magneto-electric dipole antenna further includes two feeding structures 4, which are arranged orthogonally, wherein one feeding structure 4 is used to feed the first electric dipole and the first magnetic dipole, and the other feeding structure 4 is used to feed the second electric dipole and the second magnetic dipole. The height of the feeding structure 4 used to feed the first electric dipole and the first magnetic dipole is greater than the height of the feeding structure 4 used to feed the second electric dipole and the second magnetic dipole.

[0118] Continuing with FIG14 , the feed structure 4 includes a first portion 41, a second portion 42, a third portion 43, and a fourth portion 44, which are sequentially connected. The first portion 41 is connected to a first connecting post 46 and is configured to receive signals. For example, the first connecting post 46 can be electrically connected to an SMA (SubMiniature version A) connector, or the first connecting post 46 can be electrically connected to a feed network.

[0119] For example, a via is provided on the ground plate 2, and the first connecting post 46 is disposed in the via and extends out from the side of the ground plate 2 away from the conductive ring 1, thereby electrically connecting to the SMA connector or the feed network. The first connecting post 46 is insulated from the ground plate 2.

[0120] In some embodiments, in addition to feeding power to the first portion 41, the first connecting post 46 can also be used to support and secure the feeding structure 4. For example, when the ground plate 2 has a via, an insulating material is filled between the first connecting post 46 and the via to secure the first connecting post 46 to the ground plate 2.

[0121] Continuing with Figure 11 , the second portion 42 and fourth portion 44 of the feed structure 4 are respectively arranged parallel to and spaced apart from the two short-circuit conductive strips 3 of the same magnetic dipole. That is, the second portion 42 and fourth portion 44 are arranged at an angle relative to the ground plane 2. For example, the second portion 42, the short-circuit conductive strips 3 arranged parallel to and spaced apart from the second portion 42, and the air filling between the second portion 42 and the short-circuit conductive strips 3 form an air microstrip structure to reduce signal transmission loss. Similarly, the fourth portion 44, the short-circuit conductive strips 3 arranged parallel to and spaced apart from the fourth portion 44, and the air filling between the fourth portion 44 and the short-circuit conductive strips 3 form an air microstrip structure to reduce signal transmission loss.

[0122] The first portion 41 and the third portion 43 are parallel to the ground plate 2. The first portion 41 and the third portion 43 are located on the side of the ground plate 2 facing the conductive ring 1, and the third portion 43 may be located on the side of the reference plane facing the ground plate 2.

[0123] Exemplarily, the feeding structure 4 is a deformed Γ-shaped probe.

[0124] When the two feeding structures 4 are arranged orthogonally, the third portion 43 of one feeding structure 4 is located above the third portion 43 of the other feeding structure 4. For example, the lengths of the second portion 42 and the fourth portion 44 of one feeding structure 4 are greater than the lengths of the second portion 42 and the fourth portion 44 of the other feeding structure 4, so that the third portion 43 of one feeding structure 4 is located above the third portion 43 of the other feeding structure 4.

[0125] In practical applications, the feed structure 4 can be made of metal materials such as copper and aluminum. For example, the feed structure 4 is made of a copper sheet or an aluminum sheet that is bent multiple times. The connecting column can be connected to the first portion 41 by welding.

[0126] Continuing to refer to Figures 5 and 6, in some embodiments, the conductive ring 1 may include a head 1a, a tail 1b, and two side edges 14 connected between the head 1a and the tail 1b, the head 1a and the tail 1b are relatively arranged along the radial direction of the circular array (the left and right directions in Figures 5 and 6), and the tail 1b is close to the origin O.

[0127] For example, as shown in FIG5 , the portion within the dotted line frame on the left side of the figure is the head portion 1a, and the portion within the dotted line frame on the right side is the tail portion 1b. When the conductive ring 1 is hexagonal, the head portion 1a of the conductive ring 1 can be one corner of the hexagon, and the tail portion 1b of the conductive ring 1 can be another corner of the hexagon, and the two corners are diagonally opposite to each other. Here, a corner includes the two sides forming the corner.

[0128] For example, as shown in FIG6 , the portion within the dotted box on the left side of the figure is the head portion 1a, and the portion within the dotted box on the right side is the tail portion 1b. When the shape of the conductive ring 1 is an octagon, the head portion 1a of the conductive ring 1 can be one side of the octagon and two sides connected to this side, and the tail portion 1b of the conductive ring 1 can be another side of the octagon and two sides connected to this side.

[0129] Of course, the shape of the conductive ring 1 can also be an ellipse, etc. When the shape of the conductive ring 1 is an ellipse, the head 1a of the conductive ring 1 is one end of the ellipse along the major axis, and the tail 1b of the conductive ring 1 is the other end of the ellipse along the minor axis. And so on, which will not be listed here one by one.

[0130] Continuing with Figures 5 and 6 , along the radial direction of the circular array, the distance d1 that the head portion 1a protrudes from the side edge 14 is less than the distance d2 that the tail portion 1b protrudes from the side edge 14. Because the head portion 1a of the conductive ring 1 is close to the outside of the dual-polarized magneto-electric dipole antenna, the shorter distance d1 that the head portion 1a protrudes from the side edge 14 reduces the circumferential dimensions of the dual-polarized magneto-electric dipole antenna, contributing to miniaturization of the dual-polarized magneto-electric dipole antenna. Furthermore, the longer distance that the tail portion 1b protrudes from the side edge 14 prevents the circumference of the conductive ring 1 from being reduced, that is, the electrical length of the conductive ring 1 is not reduced.

[0131] Continuing with reference to Figures 5 and 6, in some embodiments, the head portion 1a may have a first angle α, and the tail portion 1b may have a second angle β, where the first angle α is greater than the second angle β. The first angle α is closer to the outside of the dual-polarized magneto-electric dipole antenna. Due to the larger first angle α, the distance d1 by which the head portion 1a protrudes from the side edge 14 is smaller, thereby reducing the circumferential size of the dual-polarized magneto-electric dipole antenna and facilitating miniaturization of the dual-polarized magneto-electric dipole antenna. Furthermore, the smaller second angle β allows the tail portion 1b to protrude further from the side edge 14, thereby preserving the circumference of the conductive ring 1, i.e., the electrical length of the conductive ring 1.

[0132] Fig. 33 is a schematic diagram of another arrangement of the conductive ring 1 in an embodiment of the present disclosure. For example, as shown in Fig. 33, the first angle α is an obtuse angle, and the second angle β is an acute angle.

[0133] Of course, in actual application, the first angle α and the second angle β can also be acute angles at the same time (as shown in Figure 15), or the first angle α and the second angle β can also be obtuse angles at the same time, or the first angle α is an acute angle and the second angle β is an obtuse angle.

[0134] Figure 15 is a schematic diagram of another conductive ring 1 according to an embodiment of the present disclosure, and Figure 16 is a schematic diagram of the arrangement of the conductive ring 1 shown in Figure 15 . As shown in Figures 15 and 16 , in some embodiments, the distance between the two side edges 14 gradually increases from the tail portion 1b of the conductive ring 1 to the head portion 1a of the conductive ring 1. That is, the width of the conductive ring 1 is narrower near the origin O and wider away from the origin O.

[0135] The four conductive rings 1 are densely arranged near the origin O, and the width of the conductive rings 1 near the origin O is relatively narrow, which can prevent two adjacent conductive rings 1 from contact. In addition, the four conductive rings 1 are sparsely arranged away from the origin O, and the width of the conductive rings 1 away from the origin O is relatively wide, which can fully utilize the space. The electrical length of the conductive rings 1 is increased while the outer circle size of the circular array remains unchanged, and the outer circle size of the circular array is reduced while the electrical length of the conductive rings 1 remains unchanged, thereby reducing the size of the dual-polarized magnetoelectric dipole antenna.

[0136] The size of the angle between the two side edges 14 can be flexibly set according to actual needs, and the embodiment of the present disclosure does not limit this.

[0137] 5 and 9 , in some embodiments, the conductive ring 1 further includes a second side 12 and a third side 13. The second side 12 is located at one end of the first side 11, and the third side 13 is located at the other end of the first side 11. Of two adjacent conductive rings 1, the second side 12 of one conductive ring 1 is parallel to and opposite to the third side 13 of the other conductive ring 1.

[0138] The term "parallel and oppositely arranged" means that, in two adjacent conductive rings 1 , the second side 12 of one conductive ring 1 and the third side 13 of the other conductive ring 1 are parallel to each other and have a gap therebetween.

[0139] The dual-polarized magneto-electric dipole antenna can have multiple operating modes. Mode 1 can be that two pairs of magnetic dipoles and two pairs of electric dipoles are fed with signals simultaneously through the feed structure 4. Mode 2 can be that only one pair of magnetic dipoles and one pair of electric dipoles are fed with signals through the feed structure 4. For example, only the first magnetic dipole and the first electric dipole are fed with signals through the feed structure 4.

[0140] When the operating mode of the dual-polarized magnetic electric dipole antenna is mode 2, the conductive loop 1 of the first electric dipole can feed the conductive loop 1 of the second electric dipole through the second side 12 and the third side 13 respectively, so that the second electric dipole serves as a parasitic unit of the first electric dipole, thereby improving the gain of the antenna.

[0141] In addition, the second side 12 and the third side 13 are parallel and oppositely arranged, which can reduce the distance between two adjacent conductive rings 1 without the two adjacent conductive rings 1 contacting each other, thereby increasing the electrical length of the conductive ring 1 when the size of the dual-polarized magneto-electric dipole antenna is constant, or reducing the size of the dual-polarized magneto-electric dipole antenna when the electrical length of the conductive ring 1 is constant.

[0142] Optionally, referring to Figure 9 , the distance d3 between the second side 12 and the third side 13 arranged parallel and opposite to each other is λ / 10, where λ is the wavelength at the resonant frequency of the dual-polarized magnetoelectric dipole antenna. This can enhance the mutual excitation effect of two adjacent conductive rings 1.

[0143] Of course, the second side 12 may also be arranged to be inclined with respect to the third side 13 , as shown in FIG. 16 .

[0144] Figure 17 is a perspective schematic diagram of another dual-polarized magneto-electric dipole antenna provided in an embodiment of the present disclosure, Figure 18 is a side view of Figure 17, Figure 19 is a perspective schematic diagram of another dual-polarized magneto-electric dipole antenna provided in an embodiment of the present disclosure, and Figure 20 is a side view of Figure 19. As shown in Figures 17 to 20, when the conductive ring 1 includes a flat portion 101 and a bent portion 102, the bent portion 102 can be located on a side of the flat portion 101 away from the origin O.

[0145] As shown in Figures 17 and 18 , the bent portion 102 can be bent in a direction away from the ground plane 2. For example, if the conductive loop 1 is hexagonal, one corner of the conductive loop 1 away from the origin O can be bent in a direction away from the ground plane 2. By bending a portion of the conductive loop 1, the orthographic projection area of ​​the conductive loop 1 on the ground plane 2 can be reduced, thereby reducing the circumferential size of the dual-polarized magnetoelectric dipole antenna, thereby facilitating antenna miniaturization.

[0146] As shown in Figures 19 and 20, the bent portion 102 can be bent toward the ground plane 2. For example, the conductive ring 1 is hexagonal, and one corner of the conductive ring 1, away from the origin O, is bent toward the ground plane 2. By bending a portion of the conductive ring 1, the orthographic projection area of ​​the conductive ring 1 on the ground plane 2 is reduced, thereby reducing the circumferential size of the dual-polarized magnetoelectric dipole antenna and facilitating antenna miniaturization. Furthermore, because a gap is provided between the conductive ring 1 and the ground plane 2, when the conductive ring 1 is bent toward the ground plane 2, the bent portion is located within the gap between the conductive ring 1 and the ground plane 2, eliminating the need to increase the cross-sectional dimensions of the antenna.

[0147] The bending angle of the bending portion 102 can be from -90° to +90°, where -90° refers to bending 90° in a direction away from the ground plate 2 , and +90° refers to bending 90° in a direction toward the ground plate 2 .

[0148] 20 , the bending angle γ is 30° to 45°. For example, the bending angle is any value among 30°, 35°, 38°, 40°, 45°, or a value in a range consisting of any two values.

[0149] Since there is a gap between the conductive ring 1 and the ground plate 2, when the bending angle γ of the conductive ring 1 toward the ground plate 2 is 30° to 45°, the bent portion is located in the gap between the conductive ring 1 and the ground plate 2, thereby reducing the circumferential size of the antenna without increasing the cross-sectional size of the antenna.

[0150] The embodiment of the present disclosure does not limit the intersection position between the flat portion 101 and the bent portion 102; the intersection position can be located at the head portion 1a of the conductive ring 1, at the tail portion 1b of the conductive ring 1, or at the side 14 of the conductive ring 1. When the intersection position is located at the side 14 of the conductive ring 1, the intersection position can be closer to the head portion 1a of the conductive ring 1 or closer to the tail portion 1b of the conductive ring 1.

[0151] 13 and 14 , in some embodiments, the first portion 41 , the second portion 42 , the third portion 43 , and the fourth portion 44 of the feeding structure 4 are all rectangular, making the preparation of the feeding structure 4 simpler.

[0152] Continuing to refer to Figures 13 and 14, in some embodiments, the feeding structure 4 further includes a fifth portion 45, which is connected to an end of the fourth portion 44 away from the third portion 43, is parallel to the ground plate 2, and is configured to receive signals.

[0153] For example, the fifth portion 45 is electrically connected to the second connecting column 47 , and the second connecting column 47 may be electrically connected to an SMA (SubMiniature version A) connector, or the second connecting column 47 is electrically connected to a feed network.

[0154] For example, a via is provided on the ground plate 2, and the second connecting post 47 is disposed in the via and extends out from the side of the ground plate 2 away from the conductive ring 1, thereby electrically connecting to the SMA connector or the feed network. The second connecting post 47 is insulated from the ground plate 2.

[0155] When the feeding structure 4 is provided with the first part 41 and the fifth part 45 at the same time, and the first part 41 and the fifth part 45 are both connected with connecting columns, the feeding structure 4 can be supported and fixed by the first connecting column 46 and the second connecting column 47, so that the support of the feeding structure 4 is more stable, preventing the feeding structure 4 from being displaced and affecting the performance of the antenna.

[0156] Both the first portion 41 and the fifth portion 45 are used to receive signals. When the antenna is operating, the signals received by the first portion 41 and the fifth portion 45 can be signals of equal amplitude and opposite phase. Compared to receiving signals only through the first portion 41, the simultaneous reception of signals of equal amplitude and opposite phase by the first portion 41 and the fifth portion 45 can suppress antenna cross-polarization and improve port isolation.

[0157] The structures of the first connecting column 46 connected to the first portion 41 and the second connecting column 47 connected to the fifth portion 45 may be the same or different.

[0158] Exemplarily, the feed structure 4 is a symmetrical structure symmetrical with respect to the third portion 43, i.e., the first portion 41 and the fifth portion 45 have the same structure and size, the second portion 42 and the fourth portion 44 have the same structure and size, and the first connecting post 46 and the second connecting post 47 have the same structure and size. The impedance of a signal transmitted from the first portion 41 to the feed structure 4 is substantially equal to the impedance of a signal transmitted from the fifth portion 45 to the feed structure 4.

[0159] Furthermore, each portion of the feed structure 4 has the same width. That is, along the extension direction of the feed structure 4, each portion of the feed structure 4 has the same cross-sectional dimensions, so that the resistance of each portion of the feed structure 4 is substantially the same. For example, the cross-sectional dimensions of each portion of the feed structure 4 are all congruent rectangles.

[0160] When preparing the feeding structure 4 , a rectangular metal bar such as a copper bar or an aluminum bar can be formed by bending it multiple times, for example, by stamping.

[0161] In order to enable the first part 41 and the fifth part 45 to receive signals with equal amplitudes and opposite phases, the dual-polarized magnetoelectric dipole antenna may further include a differential circuit, which includes two output ends, and the two output ends are configured to output signals with opposite phases, one of the output ends is electrically connected to the first part 41, and the other output end is electrically connected to the fifth part 45.

[0162] In practical applications, two differential circuits can be provided, one of which is used to feed one of the feed structures 4, and the other is used to feed the other feed structure 4. The structures of the two differential circuits can be the same or different, as long as the two output ends of each differential circuit can output signals with equal amplitudes and opposite phases.

[0163] FIG21 is a schematic diagram of a feed network in an embodiment of the present disclosure. As shown in FIG21 , the feed network includes a first differential circuit 84 and a second differential circuit 85. The first differential circuit 84 and the second differential circuit 85 have different structures. The first differential circuit 84 includes a first output terminal 86 and a second output terminal 87, and the second differential circuit 85 includes a third output terminal 88 and a fourth output terminal 89. The first output terminal 86 and the second output terminal 87 are respectively used to electrically connect to the first portion 41 and the fifth portion 45 of one feed structure 4, while the second output terminal 87 and the fourth output terminal 89 are respectively used to electrically connect to the first portion 41 and the fifth portion 45 of the other feed structure 4.

[0164] Continuing with FIG21 , the feed network may further include a power splitter (the portion within the dashed box in FIG21 ). The power splitter includes a combining terminal 81, a first branch terminal 82, and a second branch terminal 83. A first differential circuit 84 is electrically connected to the first branch terminal 82, and a second differential circuit 85 is electrically connected to the second branch terminal 83. The first branch terminal 82 and the second branch terminal 83 can be used to output signals with equal amplitudes and a 90° phase difference. In this case, the core wire of the SMA connector can be electrically connected to the combining terminal 81, and the threads of the SMA connector can be electrically connected to the ground plate 2.

[0165] It should be noted that the differential circuit and power divider in FIG21 are only for schematic illustration, and the embodiments of the present disclosure do not limit the specific structures of the differential circuit and the power divider.

[0166] Continuing to refer to Figures 1 to 4, in some embodiments, the dual-polarized magnetoelectric dipole antenna may further include a dielectric plate 5, the ground plate 2 is connected to a side of the dielectric plate 5 facing the conductive ring 1, and the differential circuit is connected to a side of the dielectric plate 5 away from the conductive ring 1.

[0167] The dielectric plate 5 may be provided with a via hole that passes through the dielectric plate 5 along the thickness direction of the dielectric plate 5. The first connecting post 46 and the second connecting post 47 may be passed through the via hole and electrically connected to the differential circuit.

[0168] Exemplarily, the dielectric plate 5 is a printed circuit board (PCB), comprising a first conductive layer, a base layer, and a second conductive layer stacked in sequence. The first conductive layer includes the ground plane 2, and the second conductive layer includes the differential circuit. PCB manufacturing is relatively mature and possesses a certain degree of structural strength and rigidity, meeting the structural requirements for supporting the conductive ring 1.

[0169] Of course, the dielectric plate 5 may also be made of other materials, and the embodiment of the present disclosure does not limit the material of the dielectric plate 5 .

[0170] Continuing with Figures 1 to 4 , in some embodiments, the dual-polarized magnetoelectric dipole antenna may further include a reflector 6 located on a side of the dielectric plate 5 away from the conductive ring 1 and spaced apart from the dielectric plate 5. During antenna operation, the reflector 6 may reflect electromagnetic waves, providing a directional effect.

[0171] For example, the orthographic projections of the four conductive rings 1 on the reflector plate 6 are located within the reflector plate 6 to enhance the reflective effect of the reflector plate 6. For example, the reflector plate 6 is rectangular and has dimensions of 68.75 mm x 56.25 mm. Of course, the dimensions of the reflector plate 6 can be adjusted as needed in actual applications.

[0172] Furthermore, because reflector 6 is spaced apart from dielectric plate 5, when a differential circuit is provided on the side of dielectric plate 5 facing reflector 6, the differential circuit, reflector 6, and the air between the differential circuit and reflector 6 together form an air microstrip structure, which can reduce signal transmission loss. The spacing between reflector 6 and dielectric plate 5 can be flexibly adjusted as needed.

[0173] Figure 22 is a perspective schematic diagram of another dual-polarized magnetoelectric dipole antenna provided in an embodiment of the present disclosure, and Figure 23 is a side view of Figure 22 . As shown in Figures 22 and 23 , in some embodiments, the dual-polarized magnetoelectric dipole antenna further includes a parasitic patch 9, which is located on a side of the conductive ring 1 away from the ground plane 2 and spaced apart from the conductive ring 1. Parasitic patch 9 is made of a conductive material and can improve the antenna's gain.

[0174] The parasitic patch 9 is generally plate-shaped or sheet-shaped. The shape of the parasitic patch 9 can be circular, elliptical, triangular, rectangular, hexagonal, or other polygonal shapes, or other irregular shapes. The embodiment of the present disclosure does not limit the shape of the parasitic patch 9. The accompanying drawings only illustrate the parasitic patch 9 as a square.

[0175] Optionally, a first slit 91 is provided on the parasitic patch 9. The first slit 91 penetrates the parasitic patch 9 along the thickness direction of the parasitic patch 9.

[0176] The first slit 91 can have various shapes, for example, a "cross" shape, an H" shape, a "U" shape, etc., or a triangle, a rectangle, a trapezoid, a circle, an ellipse, etc., or a strip shape such as an elliptical strip, an arc strip, or an irregular shape such as a letter shape, a number shape, a flower-shaped slit, and a star-shaped slit.

[0177] The first slit 91 may be provided at the geometric center of the parasitic patch 9 , at the edge of the parasitic patch 9 , or at a corner of the parasitic patch 9 .

[0178] The parasitic patch 9 may have one first slit 91 or may have multiple first slits 91. When multiple first slits 91 are provided, the multiple first slits 91 may be arranged in an array.

[0179] Figures 24 to 27 illustrate several possible configurations of the parasitic patch 9. As shown in Figure 24, the first slit 91 can be in the shape of a multiplication sign and located at the center of the parasitic patch 9. As shown in Figure 25, the first slit 91 is notch-shaped, with one notch located on each side of the parasitic patch 9. As shown in Figure 26, the first slit 91 is notch-shaped, with one notch located at each corner of the parasitic patch 9. As shown in Figure 27, the first slit 91 is in the shape of a straight line, with one first slit 91 located on each side of the parasitic patch 9.

[0180] Exemplarily, when the parasitic patch 9 is provided with a plurality of first slots 91 , the first slots 91 correspond to the conductive rings 1 one by one.

[0181] Figure 28 is a schematic diagram of a dual-polarized magnetoelectric dipole antenna provided by an embodiment of the present disclosure. As shown in Figure 28 , the dual-polarized magnetoelectric dipole antenna may further include a radome 10, which is located on a side of the conductive ring 1 away from the ground plane 2 and spaced apart from the conductive ring 1. When the dual-polarized magnetoelectric dipole antenna includes a parasitic patch 9, the parasitic patch 9 may be located between the radome 10 and the conductive ring 1, with a gap provided between the parasitic patch 9 and the radome 10.

[0182] Figure 29 shows the S11 parameter variation with frequency for the dual-polarized magnetoelectric dipole antenna shown in Figure 1. As shown in Figure 29, the antenna resonates at 2.6 GHz, and S11 is less than -15 dB in the range of 2.54 GHz to 2.67 GHz.

[0183] Figure 30 shows the gain curve of the dual-polarized magnetoelectric dipole antenna shown in Figure 1. As shown in Figure 30, the antenna has a high gain of 8.3 dB within the operating frequency band.

[0184] An embodiment of the present disclosure further provides an antenna array, which includes a plurality of dual-polarized magneto-electric dipole antennas arranged in an array.

[0185] Among them, multiple dual-polarized magneto-electric dipole antennas can be arranged in a rectangular array, a triangular array, a hexagonal array, etc. The embodiment of the present disclosure does not limit the arrangement of the antenna array.

[0186] Optionally, multiple dual-polarized magneto-electric dipole antennas may share some common structures. For example, the reflector plates 6 of multiple dual-polarized magneto-electric dipole antennas may be an integrated structure. For another example, the dielectric plates 5 of multiple dual-polarized magneto-electric dipole antennas may be an integrated structure. For another example, the radomes 10 of multiple dual-polarized magneto-electric dipole antennas may be an integrated structure.

[0187] Figure 31 is a partial structural diagram of an antenna array according to an embodiment of the present disclosure. As shown in Figure 31 , in some embodiments, a spacer strip 7 is provided between two adjacent dual-polarized magneto-electric dipole antennas. The spacer strip 7 is connected to the side of the reflector plate 6 facing the conductive ring 1. The spacer strip 7 can improve the port and polarization isolation of the antenna array, thereby improving antenna performance.

[0188] A single isolation strip 7 can be provided between two adjacent dual-polarized magnetoelectric dipole antennas, or multiple isolation strips 7 can be provided. The structure of the isolation strip 7 can be modified according to the application requirements to improve port and polarization isolation. Figure 31 shows a wall-like isolation strip 7.

[0189] Optionally, the isolation strip 7 may be provided with a second slit 71. The second slit 71 penetrates the parasitic patch 9 along the thickness direction of the parasitic patch 9.

[0190] The second slit 71 can have a variety of shapes, for example, it can be a "cross" shape, an H" shape, a "U" shape, etc., it can also be a triangle, a rectangle, a trapezoid, a circle, an ellipse, etc., it can also be an elliptical strip, an arc strip, etc., and it can also be an irregular shape such as a letter shape, a number shape, a flower-shaped gap, and a star-shaped gap.

[0191] The second slit 71 may be provided at the geometric center of the isolation strip 7 , at the edge of the isolation strip 7 , or at a corner of the isolation strip 7 .

[0192] The isolation strip 7 may be provided with one second slit 71 or may be provided with a plurality of second slits 71. When a plurality of second slits 71 are provided, the plurality of second slits 71 may be arranged in an array.

[0193] Figure 32 is a schematic diagram of an isolation bar 7 according to an embodiment of the present disclosure. As shown in Figure 32, a second T-shaped slit 71 is provided at each end of the isolation bar 7.

[0194] An embodiment of the present disclosure further provides a communication base station, which may include any of the above-mentioned dual-polarized magneto-electric dipole antennas, any of the above-mentioned antenna arrays, or both a dual-polarized magneto-electric dipole antenna and an antenna array.

[0195] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A dual-polarized magnetoelectric dipole antenna, characterized in that, Comprising: A ground plane; A plurality of conductive rings, the plurality of conductive rings being opposite to and spaced from the ground plane, the plurality of conductive rings being arranged in a circular array around the origin, two of the plurality of conductive rings spaced along a first direction forming a first electric dipole, two of the plurality of conductive rings spaced along a second direction forming a second electric dipole, the first direction and the second direction being perpendicular to each other, the conductive ring including a first side adjacent to the origin; A plurality of short - circuit conductive bars, the plurality of short - circuit conductive bars being located between the conductive ring and the ground plane, and the short - circuit conductive bars corresponding to the conductive rings one by one, one end of the short - circuit conductive bar being electrically connected to the first side, the other end of the short - circuit conductive bar being electrically connected to the ground plane, two of the plurality of short - circuit conductive bars electrically connected to the first electric dipole and the ground plane located between the two short - circuit conductive bars forming a first magnetic dipole, two of the plurality of short - circuit conductive bars electrically connected to the second electric dipole and the ground plane located between the two short - circuit conductive bars forming a second magnetic dipole, wherein the short - circuit conductive bar is inclined with respect to the ground plane.

2. The dual-polarized magnetoelectric dipole antenna according to claim 1, wherein, The conductive ring includes a head, a tail, and two side edges connecting the head and the tail, the head and the tail being oppositely arranged along the radial direction of the circular array, and the tail being adjacent to the origin; along the radial direction of the circular array, the distance that the head protrudes from the side edge is less than or equal to the distance that the tail protrudes from the side edge.

3. The dual-polarized magnetoelectric dipole antenna according to claim 2, wherein, The head has a first included angle, and the tail has a second included angle, and the angle of the first included angle is greater than the angle of the second included angle.

4. The dual-polarized magnetoelectric dipole antenna according to claim 1, wherein, The conductive ring includes a head, a tail, and two side edges connecting the head and the tail, the head and the tail being oppositely arranged along the radial direction of the circular array, and the tail being adjacent to the origin, the head having a first included angle, the tail having a second included angle, and one of the first included angle and the second included angle being an obtuse angle and the other being an acute angle.

5. The dual-polarized magnetoelectric dipole antenna according to claim 1, wherein, The conductive ring includes a head, a tail, and two side edges, the head and the tail being oppositely arranged along the radial direction of the circular array, and the tail being adjacent to the origin, and two side edges are connected between the head and the tail, and the distance between the two side edges gradually increases in the direction from the tail to the head.

6. The dual-polarized magnetoelectric dipole antenna according to claim 1, wherein, The conductive ring further includes a second side and a third side, the second side being located at one end of the first side, and the third side being located at the other end of the first side; among adjacent two conductive rings, the second side of one conductive ring is parallel and oppositely arranged to the third side of the other conductive ring.

7. The dual-polarized magnetoelectric dipole antenna according to claim 6, wherein, The distance between the parallel and oppositely arranged second side and third side is greater than or equal to 1 mm.

8. The dual-polarized magnetoelectric dipole antenna according to claim 1, wherein, The conductive ring includes a flat portion and a bent portion, the bent portion being located on the side of the flat portion away from the origin, and the bent portion is bent in a direction away from or towards the ground plane.

9. The dual-polarized magnetoelectric dipole antenna according to claim 1, wherein, The orthographic projection of the conductive ring on the ground plane is in a polygonal, elliptical or irregular shape.

10. The dual-polarized magnetoelectric dipole antenna according to any one of claims 1 to 9, wherein, The dual-polarized magnetoelectric dipole antenna further includes two feeding structures. Each feeding structure includes a first part, a second part, a third part, and a fourth part connected in sequence. The second part and the fourth part are respectively parallel and spaced apart from two short-circuit conductive bars of the same magnet dipole. The first part and the third part are parallel to the ground plane, and the first part is configured to receive signals.

11. The dual-polarized magnetoelectric dipole antenna according to claim 10, wherein, The feeding structure further includes a fifth part. The fifth part is connected to one end of the fourth part away from the third part. The fifth part is parallel to the ground plane, and the fifth part is configured to receive signals.

12. The dual-polarized magnetoelectric dipole antenna according to claim 10, wherein, The dual-polarized magnetoelectric dipole antenna further includes a differential circuit. The differential circuit includes two output terminals configured to output signals with opposite phases. One of the output terminals is electrically connected to the first part, and the other output terminal is electrically connected to the fifth part.

13. The dual-polarized magnetoelectric dipole antenna according to claim 12, wherein, The dual-polarized magnetoelectric dipole antenna further includes a dielectric plate. The ground plane is connected to one side of the dielectric plate facing the conductive ring, and the differential circuit is connected to the other side of the dielectric plate away from the conductive ring.

14. The dual-polarized magnetoelectric dipole antenna according to claim 13, wherein, The dual-polarized magnetoelectric dipole antenna further includes a reflector. The reflector is located on the side of the dielectric plate away from the conductive ring, and the reflector is spaced apart from the dielectric plate.

15. The dual-polarized magnetoelectric dipole antenna according to claim 1, wherein, The circumference of the conductive ring can be half of the wavelength at the resonant frequency of the dual-polarized magnetoelectric dipole antenna.

16. The dual-polarized magnetoelectric dipole antenna according to claim 1, wherein, The electrical lengths of the first magnet dipole and the second magnet dipole are equal to half of the wavelength at the resonant frequency of the dual-polarized magnetoelectric dipole antenna.

17. The dual-polarized magnetoelectric dipole antenna according to any one of claims 1 to 16, wherein, The dual-polarized magnetoelectric dipole antenna further includes a parasitic patch. The parasitic patch is located on the side of the conductive ring away from the ground plane, and the parasitic patch is spaced apart from the conductive ring.

18. The dual-polarized magnetoelectric dipole antenna according to claim 17, wherein, A first slot is provided on the parasitic patch.

19. An antenna array, characterized in that, Including a plurality of dual-polarized magnetoelectric dipole antennas according to any one of claims 1 to 18, and the plurality of dual-polarized magnetoelectric dipole antennas are arranged in an array.

20. The antenna array according to claim 19, wherein, The dual-polarized magnetoelectric dipole antenna includes a conductive ring and a reflector. An isolation strip is provided between adjacent dual-polarized magnetoelectric dipole antennas. The isolation strip is connected to the side of the reflector facing the conductive ring.

21. The antenna array according to claim 20, wherein, A second slot is provided on the isolation strip.

22. A communication base station, characterized in that, Including a dual-polarized magnetoelectric dipole antenna according to any one of claims 1 to 18, or including an antenna array according to any one of claims 19 to 21.

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