CN212874753U

CN212874753U - Array antenna

Info

Publication number: CN212874753U
Application number: CN202021790001.8U
Authority: CN
Inventors: 姚涛; 侯小强; 张卫征; 李培; 周新
Original assignee: Dongguan Xinyixun Times Communication Co Ltd
Current assignee: Dongguan Xinyixun Times Communication Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-02
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses an array antenna, including at least one dual polarization oscillator and metal reflecting plate, one or more dual polarization oscillator combination forms array element array, array element array is installed in the metal reflecting plate, the physical central line of array element array with the axial central line of metal reflecting plate is parallel and the interval sets up. The utility model discloses reached and narrowed antenna horizontal plane beam width under littleer dustcoat cross-sectional dimension, effectively promoted the gain and improved the isolation, realized array antenna's miniaturized design.

Description

Array antenna

Technical Field

The utility model relates to a mobile communication antenna field, in particular to array antenna.

Background

With the rapid development of the 4G mobile communication network layout, the number of required antennas increases dramatically, and in order to effectively increase the system capacity and reduce the interference between the antennas, more rigorous requirements are provided for the size and performance indexes of all the antennas.

In the prior art, under the condition that the radiation performance of the array antenna is ensured, the height of the used oscillator is high, the width of the required boundary is wide, and the width and the thickness of the antenna are visually represented to be large. The thickness of the antenna can be solved by designing a low-profile oscillator, but if the low-profile oscillator is forcibly placed in the narrowed boundary of the conventional array antenna, the beam width index of the water bottle sheet is widened by 3-5 degrees, the gain index is reduced, the circuit index, the radiation index and the isolation index are seriously deteriorated, and the requirement of an operator cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem to the defect that exists among the above-mentioned prior art, provide an array antenna to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows: the utility model provides an array antenna, includes at least one dual polarization oscillator and metal reflecting plate, one or more dual polarization oscillator combination form array element array, array element array is installed in the metal reflecting plate, the physical center line of array element array with the axial center line of metal reflecting plate is parallel and the interval sets up.

As a further elaboration of the above technical solution:

in the above technical scheme, the metal reflecting plate is U type metal reflecting plate, U type reflecting plate includes diaphragm, first riser and second riser, the first riser with the second riser is installed respectively on the long edge in both sides of diaphragm, first riser is higher than the second riser.

In the above technical scheme, diaphragm, first riser and second riser integrated into one piece.

In the above technical solution, the physical center line of the array element is biased to the second vertical plate.

In the above technical solution, a distance between a physical center line of the array element array and an axial center line of the metal reflector is equal to a height difference between the first vertical plate and the second vertical plate.

In the above technical solution, the dual-polarized oscillator includes two pairs of dipoles with orthogonal polarizations.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses an at least one dual polarization oscillator and metal reflecting plate, one or more dual polarization oscillator combination form array element array, and array element array is installed in the metal reflecting plate, and the physical central line of array element array and the axial central line of metal reflecting plate are parallel and the interval sets up, reach narrowing antenna horizontal plane beam width under less dustcoat cross sectional dimension, effectively promote the gain and improve the isolation, realize array antenna's miniaturized design.

Drawings

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

fig. 2 is a side view of the present invention.

In the figure: 1. a dual-polarized oscillator; 2. a metal reflective plate; 21. a transverse plate; 22. a first vertical plate; 23. a second vertical plate; 3. and (5) array element arraying.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to 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 connections; 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 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 above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-2, an array antenna includes at least one dual-polarized element 1 and a metal reflection plate 2. The dual-polarized oscillator is a low-profile dual-polarized oscillator and comprises two pairs of dipoles with orthogonal polarization, one dual-polarized oscillator 1 is an array element, and one or more dual-polarized oscillators 1 are combined to form an array element array 3. The array element array 3 is arranged in the metal reflecting plate 2, and the physical central line of the array element array 3 is parallel to the axial central line of the metal reflecting plate 2 and arranged at intervals.

In this embodiment, as shown in fig. 2, the metal reflector 2 is a U-shaped metal reflector, the U-shaped metal reflector includes a horizontal plate 21, a first vertical plate 22 and a second vertical plate 23, the first vertical plate 22 and the second vertical plate 23 are respectively installed on the long edges of two sides of the horizontal plate 21, and the first vertical plate 22 is higher than the second vertical plate 23. The transverse plate 21, the first vertical plate 22 and the second vertical plate 23 are integrally formed, so that the strength of the metal reflecting plate 2 is ensured. Specifically, the physical center line of the array element 3 is biased to the second riser 23.

As shown in fig. 1 and 2, the distance between the physical center line of the array element array 3 and the axial center line of the metal reflector 2 is equal to the height difference between the first riser 22 and the second riser 23. Of course, the distance between the physical center line of the array element array 3 and the axial center line of the metal reflector 2 may be equivalent to the height difference between the first riser 22 and the second riser 23, and there may be some error in actual production, and the error is not absolutely equal.

The utility model discloses an at least one dual polarization oscillator 1 and

metal reflecting plate

2, 1 combination formation array element array 3 of one or more dual polarization oscillators, array element array 3 is installed in metal reflecting plate 2, and the physical central line of array element array 3 and the parallel and interval setting of axial central line of metal reflecting plate 2 reach narrowing antenna horizontal plane beam width under littleer dustcoat cross sectional dimension, effectively promote gain and improve the isolation, realize array antenna's miniaturized design.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The array antenna is characterized by comprising at least one dual-polarized oscillator and a metal reflecting plate, wherein one or more dual-polarized oscillators are combined to form an array element array, the array element array is arranged in the metal reflecting plate, and the physical center line of the array element array is parallel to the axial center line of the metal reflecting plate and is arranged at intervals.

2. The array antenna of claim 1, wherein the metal reflector is a U-shaped metal reflector, the U-shaped reflector includes a horizontal plate, a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are respectively mounted on the long edges of the two sides of the horizontal plate, and the first vertical plate is higher than the second vertical plate.

3. An array antenna as claimed in claim 2, wherein the cross plate, the first riser and the second riser are integrally formed.

4. An array antenna as claimed in claim 2, wherein the physical centre line of the array element is offset to the second riser.

5. An array antenna as claimed in claim 2, wherein the distance between the physical centre line of the array element and the axial centre line of the metal reflector plate is equal to the height difference between the first riser and the second riser.

6. An array antenna as claimed in claim 1, wherein said dual-polarised element comprises two pairs of orthogonally polarised dipoles.