CN213753042U

CN213753042U - Dual-polarized radiation unit

Info

Publication number: CN213753042U
Application number: CN202023026879.7U
Authority: CN
Inventors: 翟翔; 黄伟; 胡英彪; 蔡宗元; 王健; 汪青云; 尹小琪; 徐萧; 于伟伟
Original assignee: Yangzhou Yinan Technology Co ltd
Current assignee: Yangzhou Yinan Technology Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-07-20
Anticipated expiration: 2030-12-15

Abstract

The utility model discloses a dual polarization radiating element in the wireless communication technology field, include: the four branches are opposite in pairs and are respectively connected to four corners of the radiation sheet, and the branches are bent downwards relative to the radiation sheet; the four feeding sheets are opposite pairwise and are respectively connected below the radiating sheets, wherein two opposite feeding sheets are parallel to the two opposite branches and have coplanar central lines, and the remaining two opposite feeding sheets are parallel to the remaining two opposite branches and have coplanar central lines. The radiating unit reduces the height, realizes the miniaturization of the antenna, and meets the requirements of miniaturization and light weight of the existing base station antenna; the radiation unit realizes direct connection between the radiation unit and the power division feed network.

Description

Dual-polarized radiation unit

Technical Field

The utility model relates to a wireless communication technology field, in particular to dual polarization radiating element.

Background

Base station antennas play an important role in wireless communications as an important component of wireless communications. In the 5G development today, the performance of the antenna needs to be considered, the size and cost of the antenna also need to be considered, and the large-size and high-cost antenna does not have too much space utilization, so that the consideration of small size and low cost becomes more important.

Observing traditional base station antenna, rectangle or L shape symmetric dipole unit are many, and the metal oscillator also relates to, but in order to guarantee the performance of antenna, common metal oscillator radiating surface size all satisfies half wavelength's requirement at present, and this is undoubtedly the restrictive condition of current metal oscillator, and to this oscillator type, under the condition that has strict restriction to the oscillator size, just can't use. Therefore, it is difficult to satisfy the requirements for downsizing and weight reduction of the conventional base station antenna.

SUMMERY OF THE UTILITY MODEL

This application is through providing a dual polarization radiating element for solve the great problem of metal oscillator radiating surface size among the prior art.

The embodiment of the application provides a dual polarization radiating element, includes:

the radiation sheet is rhombic or square;

the four branches are opposite in pairs and are respectively connected to four corners of the radiation sheet, and the branches are bent downwards relative to the radiation sheet;

the four feeding pieces are opposite pairwise and are respectively connected to the lower portions of the radiating pieces, the two opposite feeding pieces are parallel to the two opposite branches and are coplanar with the central line, and the two remaining opposite feeding pieces are parallel to the two remaining opposite branches and are coplanar with the central line.

The beneficial effects of the above embodiment are as follows: the four branches connected with the radiation sheet are in a group, two groups of branches are in an orthogonal relation, and all the branches are bent downwards relative to the radiation sheet, so that the overall size of the radiation surface of the radiation unit can be reduced and the height of the radiation surface can be reduced due to the existence of the branches, and the requirements of miniaturization and light weight of the existing base station antenna are met; the product adopts a differential feed mode, balance structures such as a balun and the like are not needed between the oscillator and the feed network, and direct connection of the radiation unit and the power division feed network is realized.

On the basis of the above embodiments, the present application can be further improved, specifically as follows:

in one embodiment of the present application, the width of the branch is smaller than the width of the connection between the radiation sheet and the branch. The branches are of slender structures and are connected with the wide radiating surface, and the suddenly narrowed branches realize inductive loading, so that a current path is prolonged, the electrical length of the radiating unit is increased, and a tuning effect is achieved.

In one embodiment of the present application, the branches are perpendicular to the radiation sheet. Further shortening the antenna height achieves an 1/8 wavelength height.

In one embodiment of the present application, the feeding plate is perpendicular to the radiation plate.

In one embodiment of the present application, two opposite feeding pieces are respectively feeding at 0 ° in a-45 ° direction and feeding at 180 ° in a-45 ° direction, and the remaining two opposite feeding pieces are respectively feeding at 0 ° in a +45 ° direction and feeding at 180 ° in a +45 ° direction. The +/-45 deg. current has higher polarization purity to the radiation unit, thereby improving the cross polarization performance of the radiation unit.

In one embodiment of the present application, the radiation sheet, the branch section, and the feed sheet are integrally formed. The radiation unit is a metal plate stamping metal part, and the branch sections and the feed sheet are bent downwards to form a three-dimensional metal part by taking the radiation sheet as a reference, so that the processing is convenient.

In one embodiment of the present application, the radiation sheet, the branch and the feeding sheet are made of aluminum. Compared with a copper white vibrator, the vibrator is lighter in weight, and the surface layer is tinned to facilitate surface mounting and reflow soldering.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

1. the radiating unit prolongs a current path by loading the inductor through the branch knot on the basis of not increasing the physical size, realizes the increase of the electrical length, reduces the height, realizes the miniaturization of the antenna and meets the requirements of the miniaturization and the light weight of the existing base station antenna;

2. the radiation unit realizes current balance by adopting a differential feed mode without a balance structure (such as a balun), and realizes direct connection of the radiation unit and the power division feed network.

The current flowing at 3.+/-45 deg. has higher polarization purity to the radiation unit, thereby improving the cross polarization performance of the radiation unit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic top view of the present invention;

fig. 2 is a first perspective view of the present invention;

fig. 3 is a schematic perspective view of the second embodiment of the present invention.

The antenna comprises a radiating sheet 1, a branch 2, a feed sheet 3, a feed sheet 31, a feed sheet I, a feed sheet II, a feed sheet III and a feed sheet IV, wherein the feed sheets I, 32, 33, 34 and four are arranged in sequence.

Detailed Description

The present invention will be further explained with reference to the following embodiments, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "vertical" and "outer peripheral surface" are used to indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the term "vertical" or the like does not imply that the components are required to be absolutely horizontal or overhanging, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples and features of the various embodiments or examples described herein can be combined and combined by those skilled in the art without conflicting aspects.

The embodiment of the application provides a dual-polarized radiation unit to solve the problem that the size of a radiation surface of a metal oscillator is large in the prior art.

In order to solve the above problems, the technical solution in the embodiment of the present application has the following general idea:

example (b):

as shown in fig. 1-2, a dual-polarized radiating element comprises a radiating patch 1, branches 2, and a feed patch 3; the radiation sheet 1 is square; four branches 2 are arranged, every two of the four branches 2 are opposite to each other and are respectively connected to four corners of the radiation sheet 1, the width of each branch 2 is smaller than the width of the joint of the radiation sheet 1 and the corresponding branch 2, the branch 2 is bent downwards relative to the radiation sheet 1, and the branch 2 is perpendicular to the radiation sheet 1; four feed sheets 3 are arranged, the four feed sheets 3 are opposite in pairs and are respectively connected below the radiation sheets 1, the bottoms of the feed sheets 3 are used for being installed on the reflecting plates of the corresponding antennas and are electrically connected with the feed network, the two opposite feed sheets 3 are parallel to the two opposite branches 2, the central lines of the two opposite feed sheets are coplanar, and the two remaining opposite feed sheets 3 are parallel to the two remaining opposite branches 2, and the central lines of the two remaining opposite feed sheets are coplanar;

as shown in fig. 3, the four feeding pieces are respectively a feeding piece one 3 °, a feeding piece two 31, a feeding piece three 33, and a feeding piece four 34, wherein the feeding piece one 31 and the feeding piece three 33 are opposite and respectively feed in a-45 ° direction by 0 ° and in a-45 ° direction by 180 °, and the feeding piece two 32 and the feeding piece 34 are opposite and respectively feed in a +45 ° direction by 0 ° and in a +45 ° direction by 180 °.

The radiating unit is a metal plate stamping metal part formed by bending the branch sections and the feed sheet downwards by taking the radiating sheet as a reference, and the radiating sheet, the branch sections and the feed sheet are integrally formed. The radiation unit is made of aluminum.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

2. the radiation unit realizes current balance by adopting a differential feed mode without a balance structure (such as a balun) and realizes direct connection of the radiation unit and a power division feed network;

the current flowing at 3 +/-45 degrees has higher polarization purity for the radiation unit, thereby improving the cross polarization performance of the radiation unit.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A dual polarized radiating element, comprising:

the radiation sheet is rhombic or square;

2. The dual polarized radiating element of claim 1, wherein: the width of the branch is smaller than the width of the joint of the radiation sheet and the branch.

3. The dual polarized radiating element of claim 2, wherein: the branch nodes are perpendicular to the radiation sheets.

4. The dual polarized radiating element of claim 2, wherein: the feed plate is perpendicular to the radiation plate.

5. A dual polarized radiating element according to any one of claims 3 to 4, wherein: wherein two opposite feed pieces are used for feeding at 0 degrees in a-45-degree direction and feeding at 180 degrees in a-45-degree direction respectively, and the remaining two opposite feed pieces are used for feeding at 0 degrees in a + 45-degree direction and feeding at 180 degrees in the + 45-degree direction respectively.

6. The dual polarized radiating element of claim 1, wherein: the radiation sheet, the branch knot and the feed sheet are integrally formed.

7. The dual polarized radiating element of claim 1, wherein: the radiating sheets, the branch sections and the feeding sheet are made of aluminum.