CN217881918U - Antenna - Google Patents

Abstract

The utility model provides an antenna, which comprises a fixed seat, wherein a reflection cavity is arranged at the center of the fixed seat, T-shaped grooves connected with the reflection cavity are arranged on two sides of the reflection cavity, a ridge structure is connected in the reflection cavity through the T-shaped grooves, and the ridge structure comprises a left sector ridge and a right sector ridge; the fixing seat is of a square structure, a wall body is obliquely and outwardly arranged along the edge of the fixing seat, and an included angle is formed at the intersection of the wall body; the outwardly extending height of the wall is less than two-thirds of the outwardly extending height of the ridge structure. The utility model has the advantages that: the antenna works in a broadband pattern of 1-18GHz without notch.

Description

Antenna

Technical Field

The utility model relates to an antenna technology field specifically is an antenna.

Background

Broadband antennas are an important direction of antenna technology development. The ridged horn antenna designed according to the broadband waveguide theory becomes a mature technology, and the ridged horn antenna are widely applied at present, and can generate radiation in a polarization mode. But with a dip in the pattern of its polarized radiation. How to make the directional diagram of the broadband antenna radiated in the polarization not to be sunken is the problem to be solved by the application.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defect in the prior art and solve the problem that a directional diagram of broadband antenna in polarized radiation is sunken, the utility model provides an antenna, which comprises a fixed seat, wherein a reflection cavity is arranged at the center of the fixed seat, T-shaped grooves connected with the reflection cavity are arranged at two sides of the reflection cavity, a ridge structure is connected in the reflection cavity through the T-shaped grooves, and the ridge structure comprises a left sector ridge and a right sector ridge;

the fixing seat is of a square structure, a wall body is obliquely and outwards arranged along the edge of the fixing seat in an extending mode, and an included angle is formed at the intersection of the wall body;

the outwardly extending height of the wall is less than two-thirds of the outwardly extending height of the ridge structure.

Furthermore, a coaxial signal feed-in end is arranged on one side of the fixed seat, and the coaxial signal feed-in end is connected with a feed head.

Furthermore, the bottom ends of the left fan-shaped ridge and the right fan-shaped ridge are provided with T-shaped connecting structures.

Further, the T-shaped connecting structure is fixed in the T-shaped groove through a screw.

Further, the back side of the fixed seat is provided with a mounting screw hole.

To sum up, the beneficial effects of the utility model include that, an antenna is provided, and the signal is presented the end input by the coaxial, presents a little to the spine through coaxial transmission line, then flows and produces the signal radiation and goes out along the curve of spine. The cross angle wall body and the reflection cavity jointly amplify signals fed in by the coaxial lines from the left ridge and the right ridge, so that the antenna generates directional diagram signals required by people, the size of the wall body and the ridge structure is adjusted, the antenna can work in a broadband directional diagram of 1-18GHz without depression, and high cross polarization identification performance is achieved.

The design is simple, the cost is low, the installation is convenient, the CNC machining center can be used for machining and forming at one time, and the CNC machining center can also be used for forming by a metal 3D printing method, so that the purposes of excellent design and engineering realization are provided for the industry.

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 prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a structural effect in a first embodiment of the present invention;

fig. 2 is a side view of the structure in the first embodiment of the present invention;

fig. 3 is a top view of a structure according to a first embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a first embodiment of the present invention;

in the figure, a fixed seat 1, a reflection cavity 2, a T-shaped groove 3, a ridge structure 4 and a wall body 5;

the coaxial signal feed-in terminal 11, the feed head 12, the screw 101 and the mounting screw hole 111;

left fan-shaped ridge 41, right fan-shaped ridge 42, T-shaped connection structure 401.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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.

The first embodiment is as follows: referring to fig. 1-4, the antenna provided by the present invention includes a fixing base 1, a reflection cavity 2 is disposed at the center of the fixing base 1, T-shaped grooves 3 connected to the reflection cavity 2 are disposed on both sides of the reflection cavity 2, a ridge structure 4 is connected to the reflection cavity 2 through the T-shaped grooves 3, and the ridge structure 4 includes a left fan-shaped ridge 41 and a right fan-shaped ridge 42;

the fixing seat 1 is of a square structure, a wall body 5 is obliquely and outwardly arranged along the edge of the fixing seat 1, and an included angle is formed at the intersection of the wall bodies 5;

the outwardly extending height of the wall 5 is less than two thirds of the outwardly extending height of the ridge structure 4.

Further, a coaxial signal feed-in end 11 is disposed at one side of the fixing base 1, and the coaxial signal feed-in end 11 is connected to a feed head 12.

Further, the bottom ends of the left fan-shaped ridge 41 and the right fan-shaped ridge 42 are both provided with a T-shaped connecting structure 401.

Further, T type connection structure 401 passes through screw 101 to be fixed in T type groove 3, and T type connection structure 401 specifically is the T type connector.

Further, the back side of the fixing seat 1 is provided with a mounting screw hole 111 for mounting the fixing seat 1 on a bracket or a position needing mounting through a screw.

To sum up, the beneficial effects of the utility model include that, an antenna is provided, and the signal is presented the input by coaxial feed-in end, presents some to the spine through coaxial transmission line, then flows and produces the signal radiation along the curve of spine and goes out. The cross angle wall body and the reflection cavity jointly amplify signals fed in by the coaxial lines from the left ridge and the right ridge, so that the antenna generates directional diagram signals required by people, the size of the wall body and the ridge structure is adjusted, the antenna can work in a broadband directional diagram of 1-18GHz without depression, and high cross polarization identification performance is achieved.

The design is simple, the cost is low, the installation is convenient, the one-step processing molding can be realized by utilizing a CNC (numerical control machining center), the molding can also be realized by a metal 3D printing method, and the purposes of excellent design and engineering realization are provided for the industry.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claim concerned. Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims (5)

1. An antenna comprises a fixed seat (1), and is characterized in that a reflection cavity (2) is arranged at the center of the fixed seat (1), T-shaped grooves (3) connected with the reflection cavity (2) are formed in two sides of the reflection cavity (2), a ridge structure (4) is connected in the reflection cavity (2) through the T-shaped grooves (3), and the ridge structure (4) comprises a left fan-shaped ridge (41) and a right fan-shaped ridge (42);

the fixing seat (1) is of a square structure, a wall body (5) is obliquely and outwardly arranged along the edge of the fixing seat (1) in an extending mode, and an included angle is formed at the intersection of the wall body (5);

the outwardly extending height of the wall (5) is less than two thirds of the outwardly extending height of the ridge structure (4).

2. An antenna according to claim 1, characterized in that a coaxial signal feed terminal (11) is disposed on one side of the fixing base (1), and a feed head (12) is connected to the coaxial signal feed terminal (11).

3. An antenna according to claim 2, characterized in that the bottom ends of the left (41) and right (42) sectors are provided with T-shaped connecting structures (401).

4. An antenna according to claim 3, characterized in that the T-shaped connection structure (401) is fixed in the T-shaped groove (3) by means of screws (101).

5. An antenna according to claim 4, characterized in that the back side of the fixing base (1) is provided with mounting screw holes (111).

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