CN218548802U

CN218548802U - Phased array antenna

Info

Publication number: CN218548802U
Application number: CN202223122334.5U
Authority: CN
Inventors: 师拴平; 万福昌
Original assignee: Xi'an Langxin Electronic Technology Co ltd
Current assignee: Xi'an Langxin Electronic Technology Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-02-28
Anticipated expiration: 2032-11-24

Abstract

The utility model belongs to the technical field of radar antenna, a phased array antenna is related to, include: a frame body, a honeycomb panel; the positioning strips are horizontally arranged on the surface of the upper part of the honeycomb plate and are uniformly arranged along the transverse direction of the honeycomb plate, a plurality of grooves are formed in the upper part of each positioning strip along the length direction, and both sides of each groove are of an open structure; the split waveguides are horizontally arranged at the upper parts of the positioning strips, are uniformly arranged along the longitudinal direction of the honeycomb plate, are parallel to each other, correspond to the grooves at the upper parts of the positioning strips respectively, and are positioned in the grooves corresponding to the upper parts of the positioning strips. The utility model discloses a setting of honeycomb panel, when deformation or the vibration energy that make the frame transmitted crack waveguide through the honeycomb panel, can be slowed down and absorbed by the honeycomb panel to reduced the influence to crack waveguide array element plane degree, simultaneously, the honeycomb of honeycomb panel is favorable to alleviateing weight.

Description

Phased array antenna

Technical Field

The utility model belongs to the antenna field relates to a phased array antenna.

Background

With the development of science and technology, phased array radars are widely applied to the fields of meteorological detection, ground and naval vessel warning, airborne fire control and the like. The antenna element is arranged on a plane as a main component. In order to make the radar have good performance, high requirements are put on an antenna array element, namely a slotted waveguide array mounting method.

In a common phased array antenna, a slot waveguide is directly mounted on an integral frame of the antenna to perform array. According to the size of the antenna array surface, a plurality of cross beams are designed and installed in an antenna frame, and the flatness requirement of the installation surface of the crack waveguide is ensured by using an integral large-area processing method. And milling a yielding notch on the cross beam along the length direction of the crack waveguide. The support lugs at two ends of the crack waveguides are used as a positioning surface and an installation surface, and each crack waveguide is arranged and fixed on the cross beam according to a certain rule by a screwing method. The array installation method directly and rigidly connects the split waveguide, the antenna beam and the frame into a whole, and reduces structural members.

However, the flatness of the array element formed by the crack waveguides is directly influenced by the flatness of the integral installation surface of the frame, the solid profile frame and the beam are easy to deform, and the vibration energy of the frame can be directly transmitted to the crack waveguides due to rigid connection, so that the flatness of the array element surface of the crack waveguides is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a phased array antenna to solve current frame and crossbeam and produce deformation easily, the vibration energy of frame also can be because rigid connection directly transmits crack waveguide on, thereby influenced the technical problem of the plane degree of crack waveguide array component face.

In order to achieve the above object, the present invention provides a phased array antenna, which comprises:

a phased array antenna, comprising:

a frame body;

the honeycomb plate is horizontally arranged at the upper part of the frame body, and the inside of the honeycomb plate is of a honeycomb structure;

the positioning strips are horizontally arranged on the surface of the upper part of the honeycomb plate and are uniformly arranged along the transverse direction of the honeycomb plate, a plurality of grooves are formed in the upper part of each positioning strip along the length direction, and both sides of each groove are of an opening structure;

and the plurality of crack waveguides are horizontally arranged at the upper parts of the plurality of positioning strips, are uniformly arranged along the longitudinal direction of the honeycomb plate, are parallel to each other, correspond to the positions of the plurality of grooves at the upper part of each positioning strip respectively, and are positioned in the grooves corresponding to the upper parts of the plurality of positioning strips.

The utility model discloses a characteristics still lie in:

wherein four curb plates of framework, four curb plates end to end in proper order form the rectangle structure, four curb plate inside is provided with a plurality of first supporting beam, a plurality of first supporting beam evenly set up along horizontal, evenly be provided with a plurality of second supporting beam along the length direction of two first supporting beams between two adjacent first supporting beam, each second supporting beam's both ends are connected corresponding two first supporting beams respectively, be provided with a plurality of third supporting beam between two first supporting beams in the outside and the curb plate that is close to respectively, each third supporting beam respectively with the first supporting beam that corresponds, the curb plate that corresponds is connected.

Wherein the lower part of the frame body is provided with a skin.

The honeycomb plate is composed of two supporting plates and a honeycomb section bar, the two supporting plates are arranged horizontally relatively, the supporting plate positioned at the lower part is connected with the frame body, and the honeycomb section bar is horizontally arranged between the two supporting plates and is respectively connected with the two supporting plates.

Six of which are positioned.

With eighty-eight of the split waveguides.

The utility model discloses a phased array antenna has following advantage:

firstly, through the arrangement of the honeycomb plate, when the deformation or vibration energy of the frame is transmitted to the crack waveguide through the honeycomb plate, the deformation or vibration energy can be slowed down and absorbed by the honeycomb plate, so that the influence on the flatness of the array element surface of the crack waveguide is reduced, and meanwhile, the honeycomb structure of the honeycomb plate is favorable for reducing the weight;

secondly, the frame body is integrated through the matching arrangement of the four side plates, the plurality of first supporting beams, the plurality of second supporting beams and the plurality of third supporting beams, so that the deformation degree of the frame body is reduced, and the influence on the element plane flatness of the crack waveguide array is further reduced;

thirdly, through the setting of covering, can improve the rigidity of framework greatly, further reduce the deformation degree of framework.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

fig. 3 is an enlarged schematic structural view of a portion a in fig. 2 according to the present invention;

fig. 4 is a schematic top view of the middle frame body of the present invention;

fig. 5 is a schematic top view of the honeycomb section of the present invention;

reference numerals are as follows:

1. a frame body; 2. a honeycomb panel; 21. a support plate; 22. a honeycomb section bar; 3. a positioning bar; 4. a split waveguide; 5. a groove; 6. a side plate; 7. a first support beam; 8. a second support beam; 9. and a third support beam.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, the utility model relates to a phased array antenna, including framework 1, framework 1 upper portion level is provided with honeycomb panel 2, honeycomb panel 2 is inside to be honeycomb structure, 2 upper portion surface levels of honeycomb panel are provided with 6 locating

bar

3,6 locating bar 3 is along the horizontal even setting of honeycomb panel 2, 88 recesses 5 have been seted up along length direction on 3 upper portions of each locating bar, the both sides of each recess 5 all are open structure, be convenient for crack waveguide 4 card to go into

recess

5, 3 upper portion levels of 6 locating bar are provided with 88 crack waveguides 4, 88 crack waveguides 4 are along the vertical even setting of honeycomb panel 2, 88 crack waveguides 4 are parallel to each other, 88 crack waveguides 4's position is corresponding with the position of 88 recesses 5 on 3 upper portions of each locating bar respectively, each crack waveguide 4 is located the recess 5 that 3 upper portions of 6 locating bars correspond, honeycomb panel 2 is whole difficult for deformation, and be favorable to lightening weight again, the deformation of framework 1's deformation or when vibration energy passes through honeycomb panel 2 and transmits crack waveguide, can be slowed down with the absorption by honeycomb panel 2, thereby the planar influence of the array element crack is reduced.

As shown in fig. 4, four side plates 6 of the frame 1, the four side plates 6 are sequentially connected end to form a rectangular structure, a plurality of first support beams 7 are arranged inside the four side plates 6, the plurality of first support beams 7 are uniformly arranged along the horizontal direction, two ends of each first support beam 7 are respectively connected with the corresponding two side plates 6, a plurality of second support beams 8 are uniformly arranged between every two adjacent first support beams 7 along the length direction of the two first support beams 7, two ends of each second support beam 8 are respectively connected with the corresponding two first support beams 7, a plurality of third support beams 9 are respectively arranged between the two first support beams 7 on the outermost side and the side plates 6 close to the outermost side, and each third support beam 9 is respectively connected with the corresponding first support beams 7 and the corresponding side plates 6, and the frame 1 is integrated through the matching arrangement of the four side plates 6, the plurality of first support beams 7, the plurality of second support beams 8 and the plurality of third support beams 9, so as to reduce the deformation degree of the frame 1 and further reduce the influence on the flatness of the array surface of the crack waveguide.

The lower part of the frame body 1 is provided with a skin, the skin is respectively connected with the four side plates 7, the first supporting beams 8, the second supporting beams and the third supporting beams 10, and the rigidity of the frame body 1 can be greatly improved through the skin.

As shown in fig. 3 and 5, the honeycomb plate 2 is composed of two support plates 21 and a honeycomb section bar 22, the two support plates 21 are arranged horizontally, the support plate 21 located at the lower part is connected with the frame 1, and the honeycomb section bar 22 is horizontally arranged between the two support plates 21 and is respectively connected with the two support plates 21.

The utility model discloses a phased array antenna has following advantage:

firstly, through the arrangement of the honeycomb plate, when the deformation or vibration energy of the frame is transmitted to the crack waveguide through the honeycomb plate, the deformation or vibration energy can be slowed down and absorbed by the honeycomb plate, so that the influence on the array element plane flatness of the crack waveguide is reduced, and meanwhile, the honeycomb structure of the honeycomb plate is beneficial to reducing the weight;

secondly, the frame body is integrated through the matching arrangement of the four side plates, the first support beams, the second support beams and the third support beams, so that the deformation degree of the frame body is reduced, and the influence on the element plane flatness of the crack waveguide array is further reduced;

It is to be understood that the present invention has been described with reference to certain embodiments and that various changes or equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention as defined by the appended claims. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. A phased array antenna, comprising:

a frame body (1);

the honeycomb plate (2) is horizontally arranged at the upper part of the frame body (1), and the inside of the honeycomb plate is of a honeycomb structure;

the positioning strips (3) are horizontally arranged on the surface of the upper part of the honeycomb plate (2) and are uniformly arranged along the transverse direction of the honeycomb plate (2), a plurality of grooves (5) are formed in the upper part of each positioning strip (3) along the length direction, and both sides of each groove (5) are of an open structure;

the split waveguides (4) are horizontally arranged on the upper portions of the positioning strips (3), are uniformly arranged along the longitudinal direction of the honeycomb plate (2), are parallel to each other, correspond to the positions of the grooves (5) on the upper portions of the positioning strips (3), and are located in the grooves (5) corresponding to the upper portions of the positioning strips (3).

2. The phased-array antenna according to claim 1, wherein the frame body (1) comprises four side plates (6), the four side plates (6) are sequentially connected end to form a rectangular structure, a plurality of first supporting beams (7) are arranged inside the four side plates (6), the first supporting beams (7) are uniformly arranged along the transverse direction, a plurality of second supporting beams (8) are uniformly arranged between every two adjacent first supporting beams (7) along the length direction of the two first supporting beams (7), two ends of each second supporting beam (8) are respectively connected with the corresponding two first supporting beams (7), a plurality of third supporting beams (9) are respectively arranged between the two first supporting beams (7) on the outermost side and the side plate (6) close to the outermost side, and each third supporting beam (9) is respectively connected with the corresponding first supporting beam (7) and the corresponding side plate (6).

3. Phased array antenna as claimed in claim 1, characterised in that the lower part of the frame (1) is provided with a skin.

4. Phased array antenna according to claim 1, characterised in that the cellular board (2) consists of two support plates (21) and a cellular profile (22), the two support plates (21) being arranged horizontally opposite each other, the lower support plate (21) being connected to the frame (1), the cellular profile (22) being arranged horizontally between the two support plates (21) and being connected to the two support plates (21) respectively.

5. A phased array antenna as claimed in claim 1, characterised in that said location bars (3) are six.

6. Phased array antenna as claimed in claim 1, characterised in that said slot waveguides (4) are eighty-eight.