CN210167499U

CN210167499U - Dual-polarization radiating element and antenna thereof

Info

Publication number: CN210167499U
Application number: CN201921070303.5U
Authority: CN
Inventors: 刘晴宇; 田广中; 吉海青
Original assignee: Mobi Antenna Technologies Shenzhen Co Ltd; Shenzhen Shengyu Wisdom Network Technology Co Ltd; Mobi Technology Xian Co Ltd; Mobi Antenna Technologies Jian Co Ltd; Mobi Technology Shenzhen Co Ltd
Current assignee: Mobi Antenna Technologies Shenzhen Co Ltd; Shenzhen Shengyu Wisdom Network Technology Co Ltd; Mobi Technology Xian Co Ltd; Mobi Antenna Technologies Jian Co Ltd; Mobi Technology Shenzhen Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-03-20
Anticipated expiration: 2029-07-09

Abstract

The application provides a dual polarization radiating element and antenna, includes: the dipole antenna comprises two groups of dipoles and a base, wherein the two dipoles are in one group, the two dipoles in the same group are arranged in parallel and are orthogonal, each dipole is provided with two radiation arms, the two radiation arms extending oppositely between the adjacent dipoles are symmetrical relative to a first vertical central plane passing through the central point of the dual-polarized radiation unit, each dipole comprises a pair of paralleling baluns, the radiation arms are connected to first ends of the baluns in a one-to-one correspondence mode, each balun is of a hollow structure, and the base is connected with second ends of the four pairs of baluns.

Description

Dual-polarization radiating element and antenna thereof

Technical Field

The application relates to the technical field of communication, in particular to a dual-polarization radiating element and an antenna thereof.

Background

A base station antenna is an important component of a mobile communication system as one of core devices for realizing mobile network communication network coverage. The radiation unit means a unit constituting a basic structure of an antenna, which can efficiently radiate or receive radio waves. The balun is an important composition structure of the radiation unit, but the balun can shield the radiation unit, thereby affecting the performance of the radiation unit.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved in the present application is to provide a dual-polarized radiation unit and an antenna thereof, and the dual-polarized radiation unit and the antenna thereof aim at solving the problem of shielding of a balun on the radiation unit and improving the performance of the radiation unit.

In order to solve the above technical problem, the present application provides a dual polarization radiating element, including:

the dipole antenna comprises two groups of dipoles, wherein the two dipoles in the same group are arranged in parallel and are orthogonal, each dipole is provided with two radiation arms, the two radiation arms extending oppositely between the adjacent dipoles are symmetrical relative to a first vertical central plane passing through the central point of a dual-polarized radiation unit, each dipole comprises a pair of parallely arranged baluns, the radiation arms are correspondingly connected to the first ends of the baluns one by one, and each balun is arranged in a hollow structure; and

and the base is connected with the second ends of the four pairs of baluns.

Further, each balun is provided with a gap, and the gap is in a straight line shape or an arc shape.

Further, the two baluns of each dipole are symmetrical with respect to a second vertical central plane passing through the central point of the dual-polarized radiation unit, and the two radiation arms of each dipole are symmetrical with respect to the second vertical central plane.

Furthermore, each radiation arm comprises a first planar loading section and a second planar loading section, the second planar loading section is connected with the balun, a first end of the first planar loading section is connected to a side edge of the second planar loading section, and a second end of the first planar loading section opposite to the first end extends towards a central point of the dual-polarized radiation unit.

Furthermore, on the same dipole, the length extension directions of the horizontal sections of the two second plane loading sections are perpendicular to each other.

Further, the planar angle between the first planar loading section and the second planar loading section ranges from 60 degrees to 80 degrees.

Further, the dual-polarized radiation unit is made by integral molding.

Furthermore, the base is provided with a through hole for fixing the dual-polarized radiation unit.

The application further provides a dual-polarized radiation antenna, which comprises a metal reflecting plate, the dual-polarized radiation unit and a high-frequency unit.

Compared with the prior art, the application has the advantages that: the application provides a dual polarization radiating element, includes two sets of dipoles and base. Each dipole is provided with two radiation arms and a pair of baluns, the baluns and the dipoles are correspondingly arranged, each balun is arranged in a hollow structure, each balun is provided with a gap, the gap is in a straight line shape or an arc shape, and the gaps arranged on the baluns or the baluns in the hollow structures can reduce the blockage of the baluns on the radiation units, so that the performance of the radiation units is improved.

Drawings

Fig. 1 is a structural view of a dual polarized radiation unit of the present application.

Fig. 2 is a top view of the dual polarized radiating element of the present application.

Fig. 3 is a schematic structural diagram of the dual polarized radiation antenna of the present application.

Fig. 4 is a multi-frequency coaxial array of the dual-polarized radiation antenna of the present application.

In the drawings, each reference numeral denotes: 10. a radiation unit; 110. a first dipole; 120. a second dipole; 130. a third dipole; 140. a fourth dipole; 210. a first balun; 220. a second balun; 230. a third balun; 240. a fourth balun; 250. a fifth balun; 260. a sixth balun; 270. a seventh balun; 280. an eighth balun; 211. a first slit; 221. a second slit; 231. a third gap; 241. a fourth gap; 251. a fifth gap; 261. a sixth slit; 271. a seventh slit; 281. an eighth slit; 111. a first radiating arm; 112. a second radiating arm; 121. a third radiating arm; 122. a fourth radiation arm; 131. a fifth radiating arm; 132. a sixth radiating arm; 141. a seventh radiating arm; 142. an eighth radiating arm; 1111. a first planar loading section; 1112. a second planar loading section; 300. a base; 310. a through hole; 20. a metal reflective plate; 30. a high frequency unit.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 and 2, a dual-polarized radiation unit 10 includes two groups of dipoles and a base, the two groups of dipoles are in one group, the two dipoles in the same group are arranged in parallel, the two groups of dipoles are orthogonal, each dipole has two radiation arms, the two radiation arms extending between the adjacent dipoles in opposite directions are symmetrical with respect to a first vertical central plane passing through a central point of the dual-polarized radiation unit, each dipole includes a pair of baluns arranged in parallel, the radiation arms are connected to first ends of the baluns in one-to-one correspondence, each balun is arranged in a hollow structure, and the base is connected to second ends of the four pairs of baluns

In some embodiments, a dual polarized radiating element 10 comprises a first dipole 110, a second dipole 120, a third dipole 130, a fourth dipole 140, a first balun 210, a second balun 220, a third balun 230, a fourth balun 240, a fifth balun 250, a sixth balun 260, a seventh balun 270, an eighth balun 280, and a base 300. The balun is arranged to be of a hollow structure. Specifically, the first slot 211 is disposed on the first balun 210, the second slot 221 is disposed on the second balun 220, the third slot 231 is disposed on the third balun 230, the fourth slot 241 is disposed on the fourth balun 240, the fifth slot 251 is disposed on the fifth balun 250, the sixth slot 261 is disposed on the sixth balun 260, the seventh slot 271 is disposed on the seventh balun 270, and the slot 281 is disposed on the eighth balun 280, and the slots may be linear or arc-shaped. The blocking of the balun on high frequency can be reduced, the influence of the balun on the high frequency radiation unit is reduced, the balun is arranged to be a hollow structure, the weight can be effectively reduced, and the influence on standing wave, isolation and radiation performance of the nested high frequency radiation unit can be effectively reduced.

In some embodiments, the first dipole 110 and the third dipole 130 are disposed in parallel, the second dipole 120 and the fourth dipole 140 are disposed in parallel, and the first dipole 110 and the third dipole 130 are orthogonal to the second dipole 120 and the fourth dipole 140, forming two orthogonal polarizations. Further, the second radiation arm 112 and the third radiation arm 121 are symmetrical with respect to a first vertical central plane a passing through the dual-polarized radiation element. The sixth and

seventh radiation arms

132 and 141 are symmetrical with respect to a first vertical central plane a passing through the dual polarized radiation element. The first balun 210 and the second balun 220 are symmetrical with respect to a second vertical center plane B passing through the center point of the dual-polarized radiation element 10. The fifth balun 260 and the sixth balun 270 are symmetrical with respect to a second vertical center plane B passing through the center point of the dual-polarized radiation element 10. The first radiation arm 111 and the second radiation arm 112 are symmetrical with respect to the second vertical center plane B. The fifth radiation arm 131 and the sixth radiation arm 132 are symmetrical with respect to the second vertical center plane B.

The first radiation arm 111 is composed of two planes, i.e., a first plane loading section 1111 and a second plane loading section 1112. The second planar loading section 1112 is coupled to the first balun 210. The first end of the first planar loading section 1111 is attached to the side of the second planar loading section. A second end of the first planar loading section opposite to the first end extends towards a central point of the dual polarized radiating element 10. The first plane loading section 1111 is parallel to the plane of the dual-polarized radiation unit 10. The angle between the second planar loading section 1112 and the plane of the dual-polarized radiating element 10 is 60 ° to 80 °. The second planar loading section 1112 is angled from the first planar loading section 1111 in the range of 60 to 80. The dual-polarized radiation unit has the characteristics of simple structure, stability and reliability.

In some embodiments, the first balun 210 and the second balun 220 are connected to the base 300. The first balun 210 and the second balun 220 may be arranged in parallel. The first balun 210 and the second balun 220 may be polylines. Specifically, the first balun 210 and the second balun 220 may also be other forms of multi-segment line combinations, which can effectively increase the length of the balun and have the effect of improving the performance of standing waves and isolation.

Similarly, the second dipole 120, the third dipole 130, and the fourth dipole 140 have the same characteristics as the first dipole. The third and

fourth radiation arms

121 and 122, the fifth and

sixth radiation arms

131 and 132, and the seventh and

eighth radiation arms

141 and 142 also have the same features as the first and second radiation arms. The third balun 230, the fourth balun 240, the fifth balun 250, the sixth balun 260, the seventh balun 270, and the eighth balun 280 also have the same structural features as the first balun 210 and the second balun 220, and therefore, the same technical effects are generated, and no further description is provided herein.

In some embodiments, the base 300 is provided with a through hole 310, the through hole 310 is a convex hull structure, which can improve intermodulation performance of the radiating unit, and the dual-polarized radiating unit 10 is fixed by the through hole 310.

The dual-polarized radiating unit 10 of the present embodiment is formed by an integrated sheet metal forming method, and has the characteristics of convenient processing, light weight, high reliability and good consistency.

Referring to fig. 3 and 4, the present application provides a dual-polarized radiation antenna, which includes a metal reflection plate 20 and dual-polarized radiation units 10, wherein the dual-polarized radiation units 10 are mounted on the metal reflection plate 20 through holes 310 of a base 300. The radiation unit 10 is provided with a high frequency unit 30, and the radiation unit 10 is electrically disposed on the metal reflection plate through a base 300. Fig. 4 also provides an arrangement mode in which a plurality of radiation units 10 are uniformly arranged on the metal reflection plate 20, a high frequency unit 30 is embedded in each radiation unit 10, and a high frequency unit 30 is arranged between two adjacent radiation units 10. It should be noted that the arrangement shown in the figure is only an example of a plurality of arrangements, and the application of the ultra-wideband dual-polarized antenna is obtained by coaxial and parallel axes and a mixed arrangement of coaxial and parallel of the dual-polarized radiation unit and the high-frequency unit. A dual-polarized antenna having excellent polarization performance can be obtained.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dual polarized radiating element, comprising:

and the base is connected with the second ends of the four pairs of baluns.

2. The dual polarized radiating element according to claim 1, wherein each of said baluns is provided with a slot, said slot having a straight line shape or an arc shape.

3. A dual polarized radiating element according to claim 1, wherein the two baluns of each said dipole are symmetrical with respect to a second vertical center plane passing through the center point of said dual polarized radiating element, and the two radiating arms of each said dipole are symmetrical with respect to the second vertical center plane.

4. The dual polarized radiating element of claim 1, wherein each radiating arm comprises a first planar loading section and a second planar loading section, the second planar loading section being connected to the balun, a first end of the first planar loading section being connected to a side of the second planar loading section, and a second end of the first planar loading section opposite the first end extending towards a central point of the dual polarized radiating element.

5. A dual polarized radiating element according to claim 4, wherein the length extension directions of the horizontal cross-sections of the two second planar loading sections are perpendicular to each other on the same dipole.

6. The dual polarized radiating element of claim 5, wherein the first planar loading section and the second planar loading section have a planar angle in the range of 60 ° to 80 °.

7. A dual polarized radiating element according to any one of claims 1 to 6, wherein the dual polarized radiating element is made of unitary moulding.

8. The dual polarized radiating element of claim 1, wherein the base is provided with through holes for fixing the dual polarized radiating element.

9. A dual polarized radiating antenna comprising a metallic reflector, comprising the dual polarized radiating elements of any of claims 1-8 and high frequency elements, the dual polarized radiating elements and high frequency elements being arranged in a coaxial or parallel axis.