CN216850333U

CN216850333U - High-isolation antenna structure

Info

Publication number: CN216850333U
Application number: CN202122413192.7U
Authority: CN
Inventors: 李�城; 张文
Original assignee: Shanghai Mengju Technology Co ltd
Current assignee: Shanghai Mengju Technology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-06-28
Anticipated expiration: 2031-10-08

Abstract

The utility model relates to the technical field of communication equipment, and discloses a high-isolation antenna structure, which comprises a shell; a second double-sided board is arranged in the shell, an assembly hole is formed in one end of the second double-sided board, a connecting frame is sleeved in the assembly hole, and the upper end of the connecting frame is attached to the first double-sided board; the utility model discloses a mode installation of assembly, make its via hole on with the double sided board, adopt the relatively poor polarization mode of 45 degrees, put on a PCB, promotion isolation that can to a great extent, adopt the cooperation of assembly hole and link simultaneously, make it be more convenient for install and change, and in the dual polarized antenna, 45 polarization orthogonality can guarantee +45 and-45 isolation between the two pairs of antennas satisfies intermodulation to the spacing apart degree requirement (more than or equal to 30dB) between the antenna, consequently, the removal can not build the iron tower, only need put up a diameter 20 cm's iron prop, it can to fix the dual polarized antenna on the iron prop according to corresponding cover direction, thereby the cost is reduced.

Description

High-isolation antenna structure

Technical Field

The utility model relates to a communication equipment technical field specifically is a high isolation antenna structure.

Background

With the development of wireless communication technology, 5G technology is being widely researched on the basis of the development of 3G and 4G, and multi-antenna technology is a major breakthrough of antenna technology in the field of wireless mobile communication. The multi-antenna technology can improve the capacity and the spectrum utilization rate of a communication system by times without increasing the bandwidth, and is a key technology adopted by a new generation of mobile communication system.

The existing router model is limited by the size of a machine due to the design of multiple antennas, and the requirement that the isolation degree is more than-30 dB is difficult to meet when two adjacent antennas are placed on a conventional antenna, so that the isolation degree is low, and antenna signals are unstable.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a high isolation antenna structure possesses advantages such as high isolation, has solved the low problem of isolation.

(II) technical scheme

For the purpose that realizes above-mentioned high isolation, the utility model provides a following technical scheme: a high isolation antenna structure includes a housing; a second double-sided board is arranged in the shell, an assembly hole is formed in one end of the second double-sided board, a connecting frame is sleeved in the assembly hole, and the upper end of the connecting frame is attached to the first double-sided board;

the side face of the first double-face plate is provided with regularly arranged copper foil circuits, and the tail end of the first double-face plate is provided with a first through hole;

and the tail end of the second double-sided board is provided with a second through hole.

Preferably, the number of the second double-sided board is two, and the second double-sided board is integrated with the connecting frame through the assembly hole at the tail end.

Preferably, the second double-face plate and the first double-face plate are flush and are both quadrilateral.

Preferably, the first through holes and the second through holes formed in the second double-face plate and the first double-face plate are oriented at an angle of +/-45 degrees and are in a cross polarization mode.

Preferably, no copper foil circuit is arranged in the first via hole and the second via hole, and the copper foil circuit covers the double-sided board and the front and back surfaces of the first double-sided board.

(III) advantageous effects

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

1. the utility model discloses a mode installation of assembly, make its via hole on with the double sided board, adopt the relatively poor polarization mode of 45 degrees, put on a PCB, promotion isolation that can to a great extent, adopt the cooperation of assembly hole and link simultaneously, make it be more convenient for install and change, and in the dual polarized antenna, 45 polarization orthogonality can guarantee +45 and-45 isolation between the two pairs of antennas satisfies intermodulation to the spacing apart degree requirement (more than or equal to 30dB) between the antenna, consequently, the removal can not build the iron tower, only need put up a diameter 20 cm's iron prop, it can to fix the dual polarized antenna on the iron prop according to corresponding cover direction, thereby the cost is reduced.

Drawings

Fig. 1 is a schematic diagram of the front structure of the antenna structure of the present invention;

fig. 2 is a schematic diagram of the back structure of the antenna structure of the present invention;

fig. 3 is a schematic view of the explosion structure of the present invention.

In the figure: 1. a housing; 2. a first double-sided panel; 3. a first via hole; 4. a second double panel; 5. an assembly hole; 6. a connecting frame; 7. a second via hole; 8. copper foil circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious 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 work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a high isolation antenna structure comprising; a housing 1; the shell 1 is used for installing and bearing main components of parts, the second double-panel 4 and the first double-panel 2 which are made of PCB materials are arranged in the shell 1, the number of the second double-panel 4 and the first double-panel 2 is two, the second double-panel 4 and the first double-panel 2 are annularly arranged in the shell 1 respectively, so that the isolation degree can be improved and the receiving frequency can be conveniently received when the shell operates, the second double-panel 4 is matched and installed together by using the assembling holes 5 and the connecting frames 6, and the first double-panel 2 is matched and installed, so that the convenience of assembly is improved, the complexity in disassembly and maintenance is reduced, regular copper foil circuits 8 are arranged on the second double-panel 4 and the first double-panel 2, the copper foil circuits 8 are thin conductive bodies of the PCB, and have good cooling conduction and electromagnetic shielding effects, so that the feasibility of the device is improved, and the second through holes 7 and the first through holes 3 which are arranged corresponding to the second double-panel 4 and the first double-panel 2 are crossed in guiding manner, and the angle is +/-45 degrees, so that the isolation between the two pairs of antennas meets the requirement of intermodulation on the isolation between the antennas (more than or equal to 30dB), the cost can be reduced, and the dual-polarized antenna only needs an iron column with the diameter of 20cm and is fixed on the iron column according to the corresponding coverage direction.

The working principle is as follows: the high-isolation antenna structure is characterized in that during assembly, assembly holes formed in the double-panel 4 are assembled with connecting pieces, the first double-panel 2 is correspondingly spliced, the antenna is prevented from being connected with the second through hole 7 and the first through hole 3 in the shell 1 at any time, the two antennas are in a 45-degree cross polarization mode, the isolation between the + 45-degree and-45-degree antennas can meet the requirement that the intermodulation has the antenna isolation degree larger than or equal to 30dB by utilizing the irrelevance and orthogonality of the polarization direction of +/-45 degrees, namely the +/-45-degree antenna is in a cross shape of cross arrangement of the antennas in the antenna shell, and therefore the isolation can be improved, and the antenna structure can be mounted on an iron column with the diameter of 20 cm.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high isolation antenna structure comprising a housing (1);

the method is characterized in that:

a second double-face plate (4) is arranged in the shell (1), one end of the second double-face plate (4) is provided with an assembling hole (5), a connecting frame (6) is sleeved in the assembling hole (5), and the upper end of the connecting frame (6) is attached to the first double-face plate (2);

the side face of the first double-face plate (2) is provided with regularly arranged copper foil circuits (8), and the tail end of the first double-face plate (2) is provided with a first through hole (3);

and the tail end of the second double-side plate (4) is provided with a second through hole (7).

2. A high isolation antenna structure as claimed in claim 1, wherein: the number of the second double-face plates (4) is two, and the second double-face plates are matched with the connecting frame (6) through the assembly holes (5) at the tail ends to form a whole.

3. A high isolation antenna structure as claimed in claim 1, wherein: the second double-face plate (4) and the first double-face plate (2) are flush and are both quadrangular.

4. A high isolation antenna structure as claimed in claim 1, wherein: the first through hole (3) and the second through hole (7) formed in the second double-face plate (4) and the first double-face plate (2) are oriented at an angle of +/-45 degrees and are in a cross polarization mode.

5. A high isolation antenna structure as claimed in claim 1, wherein: the first through hole (3) and the second through hole (7) are not internally provided with copper foil circuits (8), and the copper foil circuits (8) cover the front and back surfaces of the double-sided panel (4) and the first double-sided panel (2).