CN215119234U

CN215119234U - Omnidirectional circularly polarized antenna with dustproof structure

Info

Publication number: CN215119234U
Application number: CN202121694877.7U
Authority: CN
Inventors: 秦桂容
Original assignee: Sichuan Radio Tech Co ltd
Current assignee: Sichuan Radio Tech Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2021-12-10
Anticipated expiration: 2031-07-23

Abstract

The utility model discloses an omnidirectional circularly polarized antenna with a dustproof structure, which comprises an omnidirectional antenna array and an antenna cover; the antenna housing comprises a housing body, a bottom plate and a fixing part, wherein the housing body is in a cover-shaped structure and covers the bottom plate, the omnidirectional antenna array is arranged on the bottom plate and in a space enclosed by the housing body and the bottom plate, the fixing part is used for fixing the housing body on the bottom plate, the fixing part comprises a fixing rod, the fixing rod comprises a bending part, the fixing rod is rotatably connected with the bottom plate through a damping rotating shaft, the fixing rod rotates in a vertical plane, a hook surface matched with the bending part is arranged on the housing body, and the bending part is abutted against the hook surface, so that the housing body is partially clamped between the bottom plate and the bending part; the omnidirectional antenna array is composed of 4S-band directional microstrip antennas, each omnidirectional microstrip antenna comprises four circularly polarized microstrip antennas, each circularly polarized microstrip antenna is vertically arranged on the bottom plate and horizontally rotated by 90 degrees to form a square cylindrical structure, and the circularly polarized microstrip antennas are connected between a group of power combiners.

Description

Omnidirectional circularly polarized antenna with dustproof structure

Technical Field

The utility model relates to a microstrip antenna field is an omnidirectional circular polarized antenna with dustproof construction particularly.

Background

The invention of an antenna, which is a device for interfacing a circuit with a space and is a very important and indispensable component in a wireless communication system, makes the electromagnetic spectrum one of the largest reusable natural resources for human beings. With the advance of technology, the performance requirement of the antenna is higher and higher, and the ordinary polarized antenna can only receive a polarized wave singly, which is difficult to meet the requirement of people. The circularly polarized antenna has the following main characteristics: the circularly polarized antenna can receive incoming waves with any polarization, and the radiation waves can be received by the antenna with any polarization; the circularly polarized antenna has rotation direction orthogonality; when the polarized wave is incident to the symmetrical target, the rotation direction is reversed, and the electromagnetic waves with different rotation directions have polarization isolation with larger micro-value. Therefore, the circularly polarized antenna can be widely applied to the aspects of communication, radar, electronic reconnaissance, electronic interference and the like, and the omnidirectional circularly polarized antenna is widely applied to the aspects of communication, remote sensing and remote measuring, radar, electronic reconnaissance, electronic interference and the like due to the special performance of the omnidirectional circularly polarized antenna.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention is directed to: provided is an omnidirectional circularly polarized antenna with a dustproof structure, which can radiate omnidirectionally.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

an omnidirectional circularly polarized antenna with a dustproof structure comprises an omnidirectional antenna array and an antenna cover;

the antenna housing comprises a housing body, a bottom plate and a fixing part, wherein the housing body is of a cover-shaped structure and covers the bottom plate, the omnidirectional antenna array is arranged on the bottom plate, in a space enclosed by the housing body and the bottom plate, the fixing part is used for fixing the housing body on the bottom plate, the fixing part comprises a fixing rod, the fixing rod comprises a bent part, the fixing rod is rotatably connected with the bottom plate through a damping rotating shaft, the fixing rod rotates in a vertical plane, a hook surface matched with the bent part is arranged on the housing body, and the bent part is abutted against the hook surface, so that the housing body is partially clamped between the bottom plate and the bent part;

the omnidirectional antenna array is an S-band omnidirectional microstrip antenna, the omnidirectional microstrip antenna comprises four circularly polarized microstrip antennas, each circularly polarized microstrip antenna is vertically arranged on the bottom plate to form a square cylindrical structure, and the circularly polarized microstrip antennas are connected between a group of power combiners and used for enabling each circularly polarized microstrip antenna to output a left-handed signal and a right-handed signal respectively.

Further, a sealing layer used for sealing a contact surface of the cover body and the bottom plate is arranged between the cover body and the bottom plate, the sealing layer is made of rubber materials, and when the bending part is abutted to the hook surface, the sealing layer is in a compression state.

Further, the surface wall of the cover body comprises an aramid paper honeycomb layer.

Furthermore, the inner wall and the outer wall of the aramid fiber paper honeycomb layer are both provided with a skin layer.

Further, the skin layer is made of glass fiber.

Furthermore, the circularly polarized microstrip antenna comprises a dielectric substrate, wherein one surface of the dielectric substrate is provided with a ground plate, and the other surface of the dielectric substrate is provided with a metal patch.

Further, the metal patch is fed by a microstrip line and an axis probe.

Compared with the prior art, the utility model, following beneficial effect has:

1. the adjacent circularly polarized microstrip antennas are vertically arranged, and the coverage surface of each circularly polarized microstrip antenna is 90 degrees multiplied by 90 degrees, so that the omnidirectional antenna array can omni-directionally cover 360 degrees.

2. The antenna cover has a protection effect on the omnidirectional antenna array, so that the omnidirectional antenna array can be subjected to the action of the severe external environment, and the reliability and the service life of the omnidirectional antenna array are improved.

Drawings

Fig. 1 is a structural view of an omnidirectional circularly polarized antenna with a dustproof structure;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a diagram of an omnidirectional antenna array configuration;

fig. 4 is a schematic diagram of the connection between the circularly polarized microstrip antenna and the power combiner.

List of reference numerals

The antenna comprises a cover body 1, a bottom plate 2, a 3-omnidirectional antenna array, a 4-fixed rod, a 5-sealing layer, a 6-positioning groove, a 7-aramid fiber paper honeycomb layer, an 8-skin layer, a 9-ground plate, a 10-dielectric substrate, a 11-metal patch and a 12-hook surface.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "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 in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.

As shown in fig. 1 to 4, an omnidirectional circularly polarized antenna with a dustproof structure includes an omnidirectional antenna array 3 and an antenna cover;

the antenna housing comprises a housing body 1, a bottom plate 2 and a fixing component, wherein the housing body 1 is in a cover-shaped structure and covers the bottom plate 2, the omnidirectional antenna array 3 is arranged on the bottom plate 2 and in a space enclosed by the housing body 1 and the bottom plate 2, the fixing component is used for fixing the housing body 1 on the bottom plate 2, the fixing component comprises a fixing rod 4, the fixing rod 4 comprises a bent part, the fixing rod 4 is rotatably connected with the bottom plate 2 through a damping rotating shaft, the fixing rod 4 rotates in a vertical plane, a hook surface 12 matched with the bent part is arranged on the housing body 1, and the bent part is abutted against the hook surface 12, so that the housing body 1 is partially clamped between the bottom plate 2 and the bent part;

the omnidirectional antenna array 3 is an S-band omnidirectional microstrip antenna, the omnidirectional microstrip antenna includes four circularly polarized microstrip antennas, each circularly polarized microstrip antenna is vertically disposed on the bottom plate 2 to form a square cylindrical structure, and the circularly polarized microstrip antenna is connected between a pair of power combiners to enable each circularly polarized microstrip antenna to output a left-handed signal and a right-handed signal respectively.

The utility model discloses a theory of operation does: the adjacent circularly polarized microstrip antennas are vertically arranged, the coverage surface of each circularly polarized microstrip antenna is 90 degrees multiplied by 90 degrees, so that the omnidirectional antenna array 3 can cover 360 degrees in an omnidirectional manner, the circularly polarized microstrip antennas are connected among a group of power combiners, and the power combiners receive left-hand signals or right-hand signals output by the four circularly polarized microstrip antennas respectively. The antenna housing protects the omnidirectional antenna array 3, enables the omnidirectional antenna array 3 to be capable of withstanding the outside severe environment, and improves the reliability and the service life of the omnidirectional antenna array 3. When the omnidirectional antenna array is used, the omnidirectional antenna array 3 is arranged on the bottom plate 2, the cover body 1 is covered on the bottom plate 2, the fixing rod 4 is rotated to be abutted against the cover body 1, the vertical displacement of the cover body 1 is limited, and the purpose of fixing the cover body 1 is achieved.

Further, a sealing layer 5 for sealing a contact surface between the cover body 1 and the bottom plate 2 is arranged between the cover body 1 and the bottom plate 2, the sealing layer 5 is made of rubber, and when the bent portion is abutted to the hook surface 12, the sealing layer 5 is in a compressed state.

Because the rubber material has elasticity, need during the use the cover body 1 tightly press on the bottom plate 2, can with the dead lever 4 rotate to with the 12 butts of couple face of the cover body 1, the elastic restoring force of sealing layer 5 has both increased the fixed effect of dead lever 4 has increased again the cover body 1 with leakproofness between the bottom plate 2 prevents that outside rivers and dust from getting into in the cover body 1. The utility model discloses in, the bottom plate 2 with can be provided with on the butt face of the cover body 1 with the constant head tank 6 of the 1 opening profile adaptation of the cover body, sealing layer 5 set for in the bottom of constant head tank 6, both convenient with the cover body 1 lid is located during on the bottom plate 2 right the cover body 1 is fixed a position, has restricted again the lateral displacement of the cover body 1 has increased fixed effect.

Further, the surface wall of the cover body 1 comprises an aramid paper honeycomb layer 7.

Aramid paper has good dielectric property and good electromagnetic wave permeability, is suitable for being used as a manufacturing material of the cover body 1, and can effectively reduce the weight of the cover body 1 while the strength of the honeycomb structure of the honeycomb layer is high, thereby saving production materials and reducing production cost.

Furthermore, the inner wall and the outer wall of the aramid paper honeycomb layer 7 are both provided with a skin layer 8. The skin layer 8 is made of glass fiber.

The skin layer 8 is right the aramid paper honeycomb layer 7 plays the guard action, and glass fiber has light in weight, good hoop strength, good electrical insulation, advantage that wave permeability is strong to can be applicable to various complicated environment.

Further, the circularly polarized microstrip antenna comprises a dielectric substrate 10, wherein one surface of the dielectric substrate 10 is provided with a ground plate 9, and the other surface is provided with a metal patch 11. The metal patch 11 is fed by a microstrip line and an axis probe. The ground plate 9 may be made of copper, and the metal patch 11 may be made by a photolithography etching method.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the embodiments in the above description, and the technical concept of the present invention can be within the scope of the present invention, and can be modified to various simple modifications, and these simple modifications all belong to the protection scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features. In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The utility model provides an omnidirectional circular polarized antenna with dustproof construction which characterized in that: comprises an omnidirectional antenna array (3) and an antenna cover;

wherein, the antenna house includes cover body (1), bottom plate (2), fixed part, cover body (1) is lid column structure, and its lid is located on bottom plate (2), omnidirectional antenna array (3) set up in on bottom plate (2) cover body (1) and in the space that bottom plate (2) enclose, fixed part be used for with cover body (1) is fixed in on bottom plate (2), fixed part includes dead lever (4), dead lever (4) include a kink, dead lever (4) through the damping pivot with bottom plate (2) rotate the connection, dead lever (4) are at vertical face internal rotation, cover body (1) be provided with kink complex couple face (12), the kink with couple face (12) butt makes cover body (1) partially press from both sides and locate bottom plate (2), Between the bending parts;

the omnidirectional antenna array (3) is an S-band omnidirectional microstrip antenna, the omnidirectional microstrip antenna comprises four circularly polarized microstrip antennas, each circularly polarized microstrip antenna is vertically arranged on the bottom plate (2) to form a square cylindrical structure, and the circularly polarized microstrip antennas are connected between a group of power combiners so that each circularly polarized microstrip antenna can output a left-handed signal and a right-handed signal respectively.

2. The omnidirectional circularly polarized antenna with the dustproof structure according to claim 1, wherein: the sealing cover is characterized in that a sealing layer (5) used for sealing a contact surface of the cover body (1) and the bottom plate (2) is arranged between the cover body (1) and the bottom plate (2), the sealing layer (5) is made of rubber, and when the bent portion is abutted to the hook surface (12), the sealing layer (5) is in a compression state.

3. The omnidirectional circularly polarized antenna with the dustproof structure according to claim 1, wherein: the surface wall of the cover body (1) comprises an aramid paper honeycomb layer (7).

4. The omnidirectional circularly polarized antenna with the dustproof structure according to claim 3, wherein: and the inner wall and the outer wall of the aramid paper honeycomb layer (7) are both provided with a skin layer (8).

5. The omnidirectional circularly polarized antenna with the dustproof structure according to claim 4, wherein: the skin layer (8) is made of glass fiber.

6. The omnidirectional circularly polarized antenna with the dustproof structure according to claim 1, wherein: the circularly polarized microstrip antenna comprises a dielectric substrate (10), wherein a grounding plate (9) is arranged on one surface of the dielectric substrate (10), and a metal patch (11) is arranged on the other surface of the dielectric substrate.

7. The omnidirectional circularly polarized antenna with the dustproof structure according to claim 6, wherein: the metal patch (11) is fed by a microstrip line and an axis probe.