CN117878622A - Radiating element, antenna assembly and antenna - Google Patents

Abstract

The invention provides a radiation unit, an antenna assembly and an antenna, wherein the radiation unit comprises a polarization structure, the polarization structure comprises two radiation arms which jointly define a radiation surface, two balun posts which respectively support the two radiation arms, and a feed core, a feed opening is arranged between each balun post and the radiation arm supported by the balun posts, the feed core comprises a feed sheet and a feed sheet which are connected, the feed core passes through the feed opening, the feed sheet is vertically arranged relative to the radiation surface, the feed sheet is horizontally arranged relative to the radiation surface, the feed core forms corresponding projections of the feed sheet and the feed sheet in the projection direction facing the radiation surface, and the central axis of the projection of the feed sheet is in an included angle relation with the central axis of the projection of the feed sheet. By changing the included angle between the feed-in sheet and the feed-in sheet of the feed-in core, the feed-in sheet can be miniaturized, the radiation unit is miniaturized, and the mutual coupling of the radiation unit is reduced.

Description

Radiating element, antenna assembly and antenna

Technical Field

The invention belongs to the technical field of mobile communication, and particularly relates to a radiation unit, an antenna assembly provided with the radiation unit and an antenna provided with the antenna assembly.

Background

With the rapid development of modern mobile communication technology, the demand of users for high-capacity, low-latency communication has increased, and thus, the fifth generation mobile communication network has grown. In the domestic 5G mobile communication network construction process, a plurality of network systems are required to cooperatively develop, for example, the 5G network and the 4G network work simultaneously; but different network systems need to adopt antennas with different frequency bands, so that the number of antennas on each base station site is increased sharply, the number of radiating units is increased, the weight and the volume of the antennas are increased, the space resources are tensed, the construction and maintenance cost of the antenna base station site is increased, and the construction of the base station antennas is not facilitated.

The existing radiating element has ±45° polarizations, and with reference to fig. 1, each polarization is generally fed through a feeding core 610, and the feeding core 610 is inserted into a mounting slot formed by a balun of the radiating element, so as to fix the feeding core 610, so that the feeding core 610 is convenient to feed a corresponding radiating arm of the radiating element.

However, the conventional power feeding core 610 is provided with a feeding sheet 611 and a feeding sheet 612, wherein the feeding sheet 611 is inserted into the mounting groove of the balun, and the feeding sheet 612 extends along the polarization direction of the polarization corresponding to the power feeding core 610. In the projection direction of the radiation plane formed by the plurality of radiation arms of the radiation unit, the central axis of the projection of the feed piece 611 coincides with the central axis of the projection of the feed piece 612. Because the projected central axis of the feed piece 611 and the projected central axis of the feed piece 612 are overlapped, the installation hole of the balun needs to be provided with a larger aperture to accommodate the feed piece 611, so that the volume of the balun is increased, the volume and the weight of the radiating unit are further increased, the radiation performance of the radiating unit is influenced, and the antenna construction is inconvenient.

In addition, since the central axis of the projection of the feeding sheet 611 and the central axis of the projection of the feeding sheet 612 are overlapped, the volume of the connection between the feeding sheet 611 and the feeding sheet 612 is larger, so that the connection between the balun and the radiating arm needs to be provided with a larger connection hole to accommodate the connection between the feeding sheet 611 and the feeding sheet 612, and the volume and the weight of the radiating unit are increased.

Disclosure of Invention

The present invention is directed to a radiating element, an antenna assembly and an antenna for solving at least one of the above problems.

The invention is suitable for various purposes, and adopts the following technical scheme:

according to one of the purposes of the invention, a radiation unit is provided, which comprises a polarization structure, wherein the polarization structure comprises two radiation arms which jointly define a radiation surface, two balun posts which respectively support the two radiation arms, and a power feeding core, a power feeding opening is arranged between each balun post and the radiation arm supported by the balun posts, the power feeding core comprises a connected power feeding piece and a power feeding piece, the power feeding core penetrates through the power feeding opening, the power feeding piece is vertically arranged relative to the radiation surface, the power feeding piece is horizontally arranged relative to the radiation surface, the power feeding core forms corresponding projections of the power feeding piece and the power feeding piece in the projection direction facing the radiation surface, and the central axis of the projection of the power feeding piece is in an included angle relation with the central axis of the projection of the power feeding piece.

Further, the central axis of the projection of the feed-in sheet and the central axis of the projection of the feed-in sheet form an included angle of 1-45 degrees.

Specifically, the feed-in piece is of a rectangular sheet structure, and the feed-in piece is of a rectangular sheet structure.

Further, the feed core further comprises a coupling piece, the coupling piece and the feed piece are respectively arranged at two ends of the feed section, the feed piece extends along a connecting line between the two radiation arms, and the coupling piece is coupled with the adjacent radiation arms.

Specifically, the feed-in sheet is parallel to the coupling sheet and is oppositely arranged.

Further, an inner space is formed between the two balun posts, and the coupling piece and the feed-in piece are respectively arranged at two sides outside the inner space.

Further, an avoidance groove is formed in the outer side face of the balun column, the avoidance groove is communicated with the feed opening, and the feed-in piece or the coupling piece is arranged in the avoidance groove.

Further, the polarization structure further comprises a balun connection structure, bottoms of the two balun posts are respectively connected with the balun connection structure, and the two balun posts are electrically connected through the balun connection structure.

Further, the two radiation arms, the two balun posts and the balun connecting structure are integrally formed together.

Specifically, the length of the balun support column is 1/4 wavelength of the working frequency band of the radiating unit.

Specifically, the radiating unit further comprises a coaxial cable, an inner conductor of the coaxial cable is welded with the feed-in piece, and an outer conductor of the coaxial cable is welded with the balun column corresponding to the coupling section.

An antenna assembly according to one of the present invention comprises a radiation unit and a dielectric support as set forth in any one of the preceding objects, wherein the dielectric support is provided with a balun groove and a plurality of feed core grooves, two balun posts of a polarization structure of the radiation unit are mounted in the balun groove, and a feed piece of the feed core is mounted in the feed core groove.

Further, the antenna assembly further comprises a reflecting plate, wherein a mounting hole is formed in the reflecting plate, the medium supporting seat is mounted in the mounting hole, and the medium supporting seat is clamped with the reflecting plate.

An antenna according to one of the present invention includes a plurality of antenna elements according to any one of the preceding objects, wherein the plurality of antenna elements share a same reflecting plate, and the plurality of antenna elements are arranged in an array.

The present invention has many advantages over the prior art, including but not limited to:

on the one hand, the radiation unit of the invention can be miniaturized by setting the included angle between the feed piece and the feed piece of the feed core, so that the volume and the weight of the feed piece are reduced, in particular, in the projection direction of the radiation surface, the projected central axis of the feed piece and the projected central axis of the feed piece are arranged at an included angle, so that the feed piece can be reduced in volume compared with the traditional feed core (namely, in the projection direction of the radiation surface, the projected central axis of the feed piece is coincident with the projected of the feed piece), so that the structure of the radiation unit corresponding to the feed piece can be reduced in volume, the volume of the radiation unit is reduced, the mutual coupling between the radiation unit and other radiation units is reduced, and the radiation performance of the radiation unit is improved.

On the other hand, the volume of the feed-in piece is smaller than that of the feed-in piece of the traditional feed-in core, so that the volume of the connection part of the feed-in piece and the feed-in piece of the feed-in core is correspondingly reduced, the connection part of the feed-in piece and the feed-in core is arranged at the feed opening of the radiation unit, and the volume of the feed opening is correspondingly reduced, so that the volume of the radiation unit is reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic diagram of a conventional power feeding core.

Fig. 2 is a schematic structural diagram of an antenna assembly according to an exemplary embodiment of the present invention.

Fig. 3 is a schematic diagram illustrating a bottom view of an antenna assembly according to an exemplary embodiment of the present invention.

Fig. 4 is a schematic structural view of a polarization structure of a radiation unit according to an exemplary embodiment of the present invention.

Fig. 5 is a schematic structural view of a feeding core of a radiating element according to an exemplary embodiment of the present invention.

Fig. 6 is a schematic view illustrating a projection of a feeding core of a radiation unit on a radiation surface according to an exemplary embodiment of the present invention.

Fig. 7 is a schematic diagram illustrating installation of a dielectric support and a reflector of an antenna assembly according to an exemplary embodiment of the present invention.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The invention provides a radiating unit, a feed core of the radiating unit comprises a feed-in sheet and a feed-in sheet, wherein the feed-in sheet is vertically arranged relative to a radiating surface, the feed-in sheet is horizontally arranged relative to the radiating surface, and in the projection direction of the radiating surface, the projected central axis of the feed-in sheet and the projected central axis of the feed-in sheet form an included angle relationship, that is, the central axis in the longitudinal direction of the feed-in sheet and the central axis in the longitudinal direction of the feed-in sheet form an included angle, so that the feed core of the radiating unit can be miniaturized relative to the traditional feed core, the volume and the weight of the feed core of the radiating unit are reduced, and the miniaturization of the radiating unit is facilitated.

In an exemplary embodiment of the present invention, in combination with fig. 2 and 4, the radiation unit 100 includes a pair of polarization structures 110, and the pair of polarization structures 110 are disposed in a polarization-orthogonal manner. The polarization structure 110 comprises two radiating arms 120, a balun structure 130 and a feeding core 140. The two radiation arms 120 are disposed opposite to each other along the polarization direction of the polarization structure 110, and the two radiation arms 120 together define the radiation plane of the radiation unit 100.

The feeding core 140 is configured to feed the two radiating arms 120, and referring to fig. 4 and 5, the feeding core 140 includes a feeding piece 141, a feeding piece 142, and a coupling piece 143, where a first end of the feeding piece 142 is connected to the feeding piece 141, and a second end of the feeding piece 142 is connected to the coupling piece 143. The feeding tab 141 is used for electrically connecting with an external feeding network to feed an external current to the feeding core 140 via the feeding tab 141 and to feed the two radiating arms 120 via the feeding core 140.

Specifically, the feeding piece 141 is vertically disposed with respect to the radiation surface, the feeding piece 142 is horizontally disposed with respect to the radiation surface, and the coupling piece 143 is also vertically disposed with respect to the radiation surface, but the coupling piece 143 is opposite to the feeding piece 141. Preferably, the coupling piece 143 is disposed parallel to the feeding piece 141.

In an exemplary embodiment of the present invention, the feeding plate 141 is vertically disposed with respect to the radiation surface, and an axis of the feeding plate 141 in a longitudinal direction is perpendicular to the radiation surface; the feeding sheet 142 is disposed horizontally with respect to the radiation surface, and an axis of the feeding sheet 142 in a longitudinal direction is parallel to the radiation surface.

Referring to fig. 6, in the projection direction of the radiation surface, the projection of the feeding sheet 141 is connected with the projection of the feeding sheet 142, and the central axis of the projection of the feeding sheet 141 (i.e. the central axis 1 in fig. 6) and the central axis of the projection of the feeding sheet 142 (i.e. the central axis 2 in fig. 6) form an included angle, that is, in the projection direction of the radiation surface, the feeding sheet 141 and the feeding sheet 142 form an included angle. In the following, unless otherwise indicated, the projections refer to projections in the projection direction of the radiation surface.

Specifically, the central axis of the projection of the feeding sheet 141 reflects the inclination angle of the feeding sheet 141 in the projection direction of the radiation surface, and the central axis of the projection of the feeding sheet 142 reflects the inclination angle of the feeding sheet 142 in the projection direction of the radiation surface. The central axis of the projection of the feeding sheet 141 of the feeding core 140 and the central axis of the projection of the feeding sheet 142 are arranged at an included angle, the included angle is larger than 0 ° and smaller than 180 °, that is, in the projection direction of the radiation surface, the feeding sheet 141 and the feeding sheet 142 are arranged at an included angle, and when the feeding sheet 141 and the feeding sheet 142 are arranged at an included angle, the miniaturization of the feeding sheet 141 is facilitated, so that the volume and the weight of the feeding sheet 141 are reduced, and the volume of the radiation unit 100 is reduced, so that the radiation unit 100 is miniaturized.

In this embodiment, the central axis of the projection of the feeding plate 141 forms an angle of 1 to 45 ° with the central axis of the projection of the feeding plate 142. In this embodiment, the difference between the central axis of the projection of the feeding sheet 141 and the central axis of the projection of the feeding sheet 142 is taken as an example of 45 ° to describe the feeding core 140 of the present invention with respect to the existing feeding core 610.

In the present invention, in the projection direction of the radiation surface, the central axis of the projection of the feeding sheet 141 and the central axis of the projection of the feeding sheet 142 form an angle of 45 °, that is, the central axis of the projection of the feeding sheet 141 and the central axis of the projection of the feeding sheet 142 do not coincide.

Referring to fig. 1, in the conventional radiating element, in the projection direction of the radiating surface, the central axis of the projection of the feeding piece 611 of the conventional feeding core 610 is set at 0 ° to the central axis of the projection of the feeding piece 612, that is, the central axis of the feeding piece 611 of the conventional feeding core 610 coincides with the central axis of the projection of the feeding piece 612.

Therefore, in the projection direction of the radiation surface, if the feeding sheet 611 is disposed at 0 ° with respect to the feeding sheet 612, the width of the feeding sheet 141 and the width of the feeding sheet 142 need to be consistent, so that good connection can be achieved, and good structural stability is maintained. In the present invention, if the feeding sheet 141 is disposed at 45 ° with respect to the feeding sheet 142, when the width of the feeding sheet 141 is inconsistent with the width of the feeding sheet 142, the feeding sheet 141 and the feeding sheet 142 can maintain good structural stability through the angle between the feeding sheet 141 and the feeding sheet 142, so as to facilitate miniaturization of the feeding sheet 141 and reduce the volume and weight of the feeding core 140.

Further, the radiating element 100 of the present invention is electrically connected to an external feed network through a coaxial cable 150, and an inner conductor 151 of the coaxial cable 150 is soldered to the feed tab 141 of the feed core 140. The conventional feeding core 610 is vertically disposed with the inner conductor of the coaxial cable, specifically, the feeding sheet 611 is disposed at 0 °, and then the inner conductor is disposed at 90 ° so that the feeding sheet 611 is welded with the inner conductor, but the feeding sheet 611 of the conventional feeding core 610 needs to provide a larger area for welding with the inner conductor, so that miniaturization of the feeding sheet 611 is inconvenient, and the conventional feeding core 610 is larger, so that the radiating unit is larger.

In the present invention, the feeding piece 141 of the feeding core 140 is disposed at 45 °, when the feeding piece 141 is soldered to the inner conductor 151 of the coaxial cable 150, the feeding piece 141 is disposed at ±45° to the inner conductor 151, for example, in combination with fig. 3, the feeding piece 141 is disposed at +45° and the inner conductor 151 is disposed at-45 °. Because the inner conductor 151 is disposed at-45 ° and the feeding piece 141 is disposed at +45°, the feeding piece 141 does not need to provide a large area for welding the inner conductor 151, so that the feeding piece 141 of the feeding core 140 of the present invention has a smaller volume than the conventional feeding core 610, and the radiation unit 100 of the present invention is miniaturized. In addition, due to the miniaturization of the radiation unit 100 of the present invention, when the radiation unit 100 and other radiation units are arranged in a co-array manner, mutual coupling between the radiation units can be reduced, so as to improve the radiation performance of the radiation unit 100.

For example, when the feeding tab 611 of the conventional feeding core 610 is soldered to the inner conductor of the coaxial cable, the feeding tab 611 needs to provide at least a soldering area with a width of 3mm or more to enable the inner conductor to be soldered to the feeding tab 611 stably. In the present invention, the feeding tab 142 of the feeding core 140 may provide a welding area having a width of 3mm or less, for example, 2mm, so that the inner conductor 151 is stably welded to the feeding tab 141. Thus, in the field of communication, the volume of the power core 140 of the present invention is reduced to a large extent with respect to the volume of the conventional power core 610, so that the volume of the radiation unit 100 loaded with the power core 140 of the present invention is smaller than the volume of the radiation unit 100 loaded with the conventional power core 610.

In a further embodiment, the coupling piece 143 of the feeding core 140 of the present invention has the same structure as the feeding piece 141, and the coupling piece 143 is disposed parallel to the feeding piece 141, so that the coupling piece 143 can also be relatively reduced in size, so as to further reduce the size and weight of the feeding core 140, thereby facilitating miniaturization of the radiating unit 100. The relative relationship between the coupling piece 143 and the feeding piece 142 is referred to as the relative relationship between the feeding piece 141 and the feeding piece 142, and is not described herein for brevity.

In one embodiment, the feeding tab 141 and the feeding tab 142 of the feeding core 140 are both rectangular sheet structures, so as to facilitate the miniaturization of the feeding core 140. Further, the coupling piece 143 is also in a rectangular sheet structure.

In an exemplary embodiment of the present invention, referring to fig. 4, the balun structure 130 includes two balun posts 131 and a balun connection structure 132, and the two balun posts 131 respectively support the two radiating arms 120, wherein top ends of the balun posts 131 are connected to the corresponding radiating arms 120, and bottom ends of the balun posts 131 are connected to the balun connection structure 132. The two balun posts 131 are connected to the balun connection structure 132 such that the two balun posts 131 are electrically connected via the balun connection structure 132. In one embodiment, the two balun posts 131 are short-circuited via the balun connection structure 132.

In one embodiment, the two radiating arms 120 of the polarization structure 110 and the balun structure 130 are integrally formed, so as to facilitate the production and manufacture of the radiating unit 100, shorten the production and assembly procedures, and reduce the production cost, thereby facilitating the large-scale popularization and application of the radiating unit 100.

In this embodiment, the two balun posts 131 are spaced apart, the space between the two balun posts 131 forms an inner space, the feeding sheet 142 is disposed in the inner space, that is, the feeding sheet 142 is disposed between the two balun posts 131, and the feeding sheet 141 and the coupling sheet 143 are disposed on two sides of the inner space, that is, the feeding sheet 141 and the coupling sheet 143 are disposed on the outer side of one balun post 131.

Specifically, the outer side surface of the balun column 131 is provided with an avoidance groove 1311, the avoidance groove 1311 extends from the bottom of the balun column 131 to the top of the balun column 131, and the avoidance groove 1311 is recessed from the outer side surface of the balun column 131 toward the direction in which the inner space is located. The avoidance groove 1311 is configured to accommodate the feeding piece 141 or the coupling piece 143, and the shape of the avoidance groove 1311 corresponds to the shape of the feeding piece 141 or the coupling piece 143, so that the feeding piece 141 or the coupling piece 143 can be stably disposed in the avoidance groove 1311.

Because the volumes of the feeding sheet 141 and the coupling sheet 143 are smaller than those of the feeding sheet 611 and the coupling sheet of the conventional feeding sheet 610, the avoidance grooves 1311 formed on the balun posts 131 can be correspondingly miniaturized, so that the balun posts 131 and the balun structures 130 are miniaturized in turn, and the radiating unit 100 is miniaturized, thereby reducing the coupling when the radiating unit 100 and other radiating units 100 are co-arrayed, and improving the radiation performance of the radiating unit 100.

In one embodiment, the shape of the cross section of the escape slot 1311 is the same as the shape of the cross section of the feeding tab 141 or the shape of the cross section of the coupling tab 143, so that the escape slot 1311 can stably mount the feeding tab 141 or the coupling tab 143 further.

The two balun posts 131 are respectively provided with a avoiding groove 1311, so that the two balun posts 131 can pass through the respective avoiding grooves 1311 to mount the corresponding feeding piece 141 or coupling piece 143, and the feeding core 140 can be stably mounted in the radiation unit 100 through the feeding piece 141 and the coupling piece 143.

Referring to fig. 5, the second end of the feeding tab 141 is connected to the first end of the feeding tab 142, and a first connection portion 144 is formed at the connection portion; the second end of the feeding tab 142 is connected to the first end of the coupling tab 143, and a second connection portion 145 is formed at the connection.

In this embodiment, referring to fig. 4, a feeding opening 123 is provided at a connection portion between the balun posts 131 and the corresponding radiating arms 120, and when the feeding piece 141 and the coupling piece 143 of the feeding core 140 are respectively and correspondingly installed in the avoiding grooves 1311 of the two balun posts 131, the first connecting portion 144 passes through the feeding opening 123 corresponding to the feeding piece 141, and the second connecting portion 145 also passes through the feeding opening 123 corresponding to the coupling piece 143. In this embodiment, the feeding opening 123 is a through hole or a through slot. Due to the miniaturization of the feeding tab 141 constituting the first connection portion 144 and the coupling tab 143 constituting the second connection portion 145, the first connection portion 144 and the second connection portion 145 are miniaturized, so that the feeding opening 123 formed at the junction of the balun column 131 and the radiating arm 120 can be miniaturized, and thus the radiating unit 100 can be miniaturized, so that the radiating performance of the radiating unit 100 can be improved.

Specifically, the two balun posts 131 are called a first balun post 133 and a second balun post 134, the two radiating arms 120 are called a first radiating arm 121 and a second radiating arm 122, the first balun post 133 supports the first radiating arm 121, and the second balun post 134 supports the second radiating arm 122. A first feed opening 1231 is formed between the first balun post 133 and the first radiating arm 121 and a second feed opening 1232 is formed between the second balun post 134 and the second radiating arm 122.

The feeding piece 141 is mounted in the avoidance slot 1331 of the first balun post 133, and the first connecting portion 144 passes through the first feeding opening 1231; the coupling piece 143 is mounted in a relief groove (not shown) of the second balun column 134, and the second connection portion 145 passes through the second feeding opening 1232, and the coupling piece 143 is coupled to the second radiating arm 122 so as to couple and feed the second radiating arm 122 through the coupling piece 143; the feeding tab 142 is disposed between the first radiating arm 121 and the second radiating arm 122.

In one embodiment, the feeding core 140 is not provided with a coupling tab 143, and the feeding tab 142 of the feeding core 140 is directly electrically connected to the second radiating arm 122 of the polarization structure 110.

In this embodiment, the radiating element 100 is connected to an external feed network by a coaxial cable 150. Specifically, the inner conductor 151 of the coaxial cable 150 is soldered to the feeding tab 141, and the outer conductor 152 of the coaxial cable 150 is soldered to the second balun column 134, thereby facilitating feeding of the two radiating arms 120 through the coaxial cable 150.

In one embodiment, the matching bandwidth of the radiating element 100 is adjusted and the impedance matching is optimized by varying the gap width between the first balun post 133 and the second balun post 134. Alternatively, the impedance matching may be optimized by changing the gap width between the feeding tab 141 and the coupling tab 143, that is, by changing the lengthwise length of the feeding tab 142 to adjust the matching bandwidth of the radiating element 100, thereby improving the radiation performance of the radiating element 100.

In one embodiment, the length of the balun column 131 in the longitudinal direction is 1/4 wavelength of the operating band of the radiating unit 100.

The present invention further provides an antenna assembly 200, and in connection with fig. 2, the antenna assembly 200 includes a radiation unit 100 and a medium support 210, where the radiation unit 100 is the radiation unit 100 described above, and the radiation unit 100 is disposed on the medium support 210.

Specifically, referring to fig. 7, the medium supporting seat 210 is provided with a balun groove 211 and a plurality of feed core grooves 212, and the plurality of feed core grooves 212 are disposed around the balun groove 211. The balun structure 130 of the radiation unit 100 is disposed in the balun groove 211, and specifically, the balun structures 130 of the two polarization structures 110 of the radiation unit 100 are disposed in the balun groove 211, so that the balun structure 130 of the radiation unit 100 is fixed by the balun groove 211.

In this embodiment, referring to fig. 3 and 7, the feeding piece 141 of the feeding core 140 of the radiating unit 100 is inserted into two feeding core slots 212 corresponding to the coupling piece 143, that is, the feeding piece 141 is inserted into one feeding core slot 212, and the coupling piece 143 is inserted into the other feeding core slot 212, thereby fixing the feeding core 140 of the radiating unit 100 on the medium supporting base 210. The two polarization structures 110 of the radiation unit 100 are respectively provided with one feeding core 140, that is, the radiation unit 100 has two feeding cores 140, and the dielectric support 210 is provided with four feeding core slots 212 corresponding to the two feeding cores 140, so that the feeding pieces 141 and the coupling pieces 143 of the two feeding cores 140 are respectively inserted into the four feeding core slots 212.

In one embodiment, referring to fig. 7, the antenna assembly 200 further includes a reflecting plate 220, in which a mounting hole 221 is formed in the reflecting plate 220, the dielectric support 210 is mounted in the mounting hole 221, and the dielectric support 210 is clamped with the mounting hole 221, so that the dielectric support 210 and the radiating unit 100 are stably disposed on the reflecting plate 220. In this embodiment, the mounting hole 221 is a through slot.

Specifically, the medium supporting seat 210 is provided with a buckle 213, and the reflector 220 is thin, so that the buckle 213 is clamped into the reflector 220 through the edge of the mounting hole 221, that is, the buckle 213 is clamped with the reflector 220, so that the medium supporting seat 210 is fixedly disposed on the reflector 220. Preferably, the medium supporting seat 210 is provided with a plurality of buckles 213, and the plurality of buckles 213 are disposed around the mounting hole 221.

The present invention further provides an antenna, where the antenna includes a plurality of antenna assemblies 200 as described above, the plurality of antenna assemblies 200 share the same reflecting plate 220, and the plurality of antenna assemblies 200 are arranged in an array, that is, the radiating units 100 corresponding to the plurality of antenna assemblies 200 are arranged in an array.

In summary, according to the radiation unit disclosed by the invention, the feed-in sheet can be miniaturized by changing the included angle between the feed-in sheet and the feed-in sheet of the feed-in core, so that the miniaturization of the feed-in core is facilitated, the miniaturization of the radiation unit is further facilitated, the mutual coupling when the radiation unit and other radiation units are co-arrayed is reduced, and the radiation performance of the radiation unit is improved.

The above description is only illustrative of the preferred embodiments of the present invention and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the invention referred to in the present invention is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept described above. Such as the above-mentioned features and the features having similar functions (but not limited to) of the invention.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.

Claims (14)

1. The utility model provides a radiation unit, its characterized in that includes polarization structure, polarization structure includes two radiation arms that have limited the radiation face jointly, corresponds respectively and supports two balun posts of these two radiation arms to and the feed core, be equipped with the feed opening between every balun post and the radiation arm that supports thereof, the feed core includes feed piece and the feed piece that is connected, the feed core passes the feed opening, the feed piece is relative the radiation face erects the setting, the feed piece is relative the radiation face is put the setting in the level, the feed core is in the orientation the projection direction of radiation face forms the feed piece with the corresponding projection of feed piece, the projected axis of feed piece with the projected axis of feed piece is the contained angle relation.

2. The radiating element of claim 1, wherein a central axis of projection of the feed tab makes an angle of 1 to 45 ° with the central axis of projection of the feed tab.

3. The radiating element of claim 1, wherein the feed tab is a rectangular sheet-like structure and the feed tab is a rectangular sheet-like structure.

4. A radiating element as claimed in any one of claims 1 to 3, wherein the feed core further comprises a coupling piece, the coupling piece and the feed piece being separately provided at both ends of the feed section, the feed piece being provided extending along a connection line between the two radiating arms, the coupling piece being coupled to an adjacent radiating arm.

5. The radiating element of claim 4, wherein the feed-in tab is parallel to and oppositely oriented from the coupling tab.

6. The radiating element of claim 4, wherein an interior space is formed between the two balun posts, and the coupling tab and the feed tab are disposed on opposite sides of the exterior of the interior space.

7. The radiating element of claim 6, wherein an avoidance groove is formed on an outer side surface of the balun column, the avoidance groove is communicated with the feed opening, and the feed-in piece or the coupling piece is arranged in the avoidance groove.

8. The radiating element of claim 4, wherein the polarization structure further comprises a balun connection structure, the bottoms of the two balun posts are respectively connected with the balun connection structure, and the two balun posts are electrically connected via the balun connection structure.

9. The radiating element of claim 8, wherein the two radiating arms, the two balun posts, and the balun connection structure are integrally formed together.

10. The radiating element of claim 1, wherein the balun support posts have a length of 1/4 wavelength of an operating frequency band of the radiating element.

11. The radiating element of claim 4, further comprising a coaxial cable, an inner conductor of the coaxial cable being soldered to the feed tab, an outer conductor of the coaxial cable being soldered to a balun post corresponding to the coupling section.

12. An antenna assembly, characterized by comprising a radiation unit and a medium support base according to any one of claims 1 to 11, wherein a balun groove and a plurality of feed core grooves are arranged in the medium support base, two balun posts of a polarization structure of the radiation unit are installed in the balun groove, and a feed-in piece of the feed core is installed in the feed core groove.

13. The antenna assembly of claim 12, further comprising a reflector plate having a mounting hole therein, wherein the dielectric support is mounted in the mounting hole, and wherein the dielectric support is engaged with the reflector plate.

14. An antenna comprising a plurality of antenna elements according to claim 13, wherein the plurality of antenna elements share the same reflector plate, and wherein the plurality of antenna elements are arranged in an array.