CN218632452U

CN218632452U - GNSS and 5G hybrid antenna

Info

Publication number: CN218632452U
Application number: CN202222602813.0U
Authority: CN
Inventors: 陈心宇; 吴书锋
Original assignee: Jiangsu Xinwei Intelligent Automobile Interconnection Technology Co ltd
Current assignee: Jiangsu Xinwei Intelligent Automobile Interconnection Technology Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-03-14
Anticipated expiration: 2032-09-29

Abstract

The utility model relates to a GNSS antenna field discloses a GNSS and 5G's hybrid antenna. The method comprises the following steps: the antenna comprises an antenna main board, a first antenna main board and a second antenna main board, wherein the antenna main board is a cuboid; the GNSS main antenna is in a quadrilateral plate shape and is arranged at the symmetrical center of the first plate surface of the antenna main plate; the antenna comprises a first PRX antenna, a second PRX antenna and a third PRX antenna, wherein the first PRX antenna is rectangular plate-shaped and is arranged on a first plate surface of an antenna main board; the second PRX antenna is in a rectangular plate shape and is arranged on the first plate surface of the antenna main plate; the third PRX antenna is in a rectangular plate shape and is arranged on the first plate surface of the antenna main board, the plate surface of the third PRX antenna is perpendicular to the first plate surface of the antenna main board, and the plate surface of the third PRX antenna is parallel to the plate surface of the first PRX antenna; and the plate surface of the fourth PRX antenna is arranged to be perpendicular to the first plate surface of the antenna main board.

Description

GNSS and 5G hybrid antenna

Technical Field

The utility model relates to a GNSS antenna field especially relates to a GNSS and 5G's hybrid antenna.

Background

With the popularization of 5G, the requirements of the internet of vehicles are higher and higher, and in order to meet the requirements of vehicles on 2G, 3G, 4G, and 5G (5G means that sub-6G does not contain millimeter waves) networks and high-precision navigation and the like, vehicle-mounted antennas are also becoming more and more difficult to do and can no longer be met by common external antennas. Therefore, a plurality of antennas are built in the vehicle-mounted T-BOX, but the built-in 5G MIMO antenna is often poor in low-frequency isolation and has certain interference with the GNSS antenna. Methods for improving the isolation of the antenna generally include the following methods:

1. the whole structure is changed, and a barrier is added between the two antennas or the distance between the two antennas is increased, but in a limited space structure, the method cannot be used.

2. The antenna patterns are adjusted, the positions of the antennas are changed, the radiation patterns of the antennas are changed, the weakest directions of the two antennas are opposite, and a good isolation index can be obtained.

3. The method is difficult to realize, because the two antennas use the mainboard as the ground of the antenna and the ground of the antenna is also the radiator in most cases, but the mainboard is difficult to modify, so the method is hardly available.

Therefore, based on the technical problem of low isolation between the GNSS antenna and the 5G MIMO antenna in the prior art, a new technology is needed to solve the current problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at solves the lower technical problem of isolation between GNSS antenna and the 5G MIMO antenna.

The utility model discloses an aspect provides a GNSS and 5G's hybrid antenna, GNSS and 5G's hybrid antenna include:

the antenna comprises an antenna main board, a first antenna body and a second antenna body, wherein the antenna main board is a cuboid, and a metal dielectric layer is arranged on a first board surface of the antenna main board;

the GNSS main antenna is an N-polygon and is arranged at the symmetrical center of the first board surface of the antenna main board, wherein N is a positive integer larger than 3;

the antenna comprises a first PRX antenna, a second PRX antenna and a third PRX antenna, wherein the first PRX antenna is rectangular plate-shaped, the first PRX antenna is installed on a first plate surface of the antenna main board, the plate surface of the first PRX antenna is perpendicular to the first plate surface of the antenna main board, the first PRX antenna is arranged at a first surface angle of the first plate surface, and a long edge of the first PRX antenna is parallel to a long edge of the antenna main board;

the second PRX antenna is rectangular plate-shaped, is mounted on a first plate surface of the antenna main board, is arranged to be perpendicular to the first plate surface of the antenna main board, is arranged at a second face angle of the first plate surface, and is arranged to be parallel to a short side of the antenna main board;

the third PRX antenna is rectangular plate-shaped, is installed on the first plate surface of the antenna main board, and is arranged to be perpendicular to the first plate surface of the antenna main board, and is arranged to be parallel to the plate surface of the first PRX antenna;

the fourth PRX antenna is rectangular plate-shaped, is installed on the first plate surface of the antenna main board, is arranged to be perpendicular to the first plate surface of the antenna main board, and is arranged to be parallel to the first plate surface of the first PRX antenna.

Optionally, in a first implementation manner of the first aspect of the present invention, the first PRX antenna includes: the antenna comprises a first antenna mainboard and a first return metal strip, wherein the first return metal strip is installed on the first antenna mainboard.

Optionally, in a second implementation manner of the first aspect of the present invention, the first PRX antenna and the first isolation region are disposed between the metal dielectric layers, the feed point of the first loop metal strip is connected to the first semicircular metal piece, and the first semicircular metal piece is installed on the first isolation region.

Optionally, in a third implementation manner of the first aspect of the present invention, the first face angle and the second face angle are opposite to each other.

Optionally, in a fourth implementation manner of the first aspect of the present invention, the second PRX antenna includes: the antenna comprises a second antenna main board and a second metal strip shaped like a Chinese character 'hui', wherein the second metal strip shaped like a Chinese character 'hui' is arranged on the second antenna main board.

Optionally, in a fifth implementation manner of the first aspect of the present invention, the second PRX antenna and the second isolation region are disposed between the metal dielectric layers, the second semicircular metal piece is connected to the feed point of the second rectangular metal strip, and the second semicircular metal piece is installed on the second isolation region.

Optionally, the utility model discloses in the sixth implementation of the first aspect, GNSS main antenna includes first GNSS mainboard and second GNSS mainboard, the first face of second GNSS mainboard is installed the center of symmetry of the first face of antenna mainboard, the second face of second GNSS mainboard is installed at the center of symmetry first GNSS mainboard, the first face of first GNSS mainboard with the second face of second GNSS mainboard is connected.

Optionally, the utility model discloses in the seventh implementation of the first aspect, the limit of the second face of first GNSS mainboard is provided with the GNSS isolation region the symmetry center of the second face of first GNSS mainboard is provided with first GNSS metal sheet.

Optionally, in an eighth implementation manner of the first aspect of the present invention, a second GNSS metal plate is disposed on the second board surface of the second GNSS motherboard.

Optionally, in a ninth implementation manner of the first aspect of the present invention, the metal dielectric layer is divided into a first metal layer and a second metal layer based on the long-edge median line of the antenna main board.

In the embodiment of the utility model provides an in, this antenna module is through laying out a part of antenna of main diversity antenna and placing on the antenna mainboard, can reduce antenna cost like this and bigger degree utilize the spatial structure of T-BOX, and the antenna radiator (the PRX antenna of 1 st-4) of perpendicular to antenna mainboard also can be done littleer, also need not to buckle and increase and walk the line area, has simplified the technology promptly and has also made the 5G antenna keep away from the GNSS antenna, reduced and the GNSS antenna between the interference.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of a hybrid GNSS and 5G antenna;

FIG. 2 is an exploded view of a first embodiment of a hybrid GNSS and 5G antenna;

FIG. 3 is a diagram of a second embodiment of a hybrid GNSS and 5G antenna;

FIG. 4 is an exploded view of a second embodiment of a hybrid GNSS and 5G antenna;

FIG. 5 is a schematic diagram of a third exemplary embodiment of a hybrid GNSS and 5G antenna;

FIG. 6 is an exploded view of a third embodiment of a hybrid GNSS and 5G antenna;

FIG. 7 is isolation test data for a hybrid antenna of GNSS and 5G;

FIG. 8 shows isolation test data for PRX and DRX antennas for GNSS and 5G hybrid antennas.

Detailed Description

The embodiment of the utility model provides a GNSS and 5G's hybrid antenna.

The following detailed description makes reference to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. Directional terminology, such as "upper," "lower," "front," "rear," etc., is used in this respect with reference to the orientation of the figures. Because the elements of the embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is clear that other embodiments can be used and structural or logical changes can be made without departing from the scope of protection of the present invention. It is clear that the features of the different exemplary embodiments described therein can be combined with one another, as long as they are not specifically stated otherwise. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

The terms "connected," "connected," and "coupled" in the context of this description are used to describe not only direct but also indirect connections, direct or indirect connections, and direct or indirect couplings. In the figures the same or similar elements are provided with the same reference numerals, as long as this is advantageous.

< embodiment 1>

Referring to fig. 1, fig. 1 is a schematic view of a first embodiment of the present invention, in which a portion with diagonal filling is a metal sheet, and a portion without diagonal filling is a non-metal material, such as a non-conductor in a PCB. The GNSS and 5G hybrid antenna comprises:

the antenna main board 60 is a cuboid, and a metal dielectric layer 602 is arranged on a first board surface 601 of the antenna main board 60;

the GNSS main antenna 50 is a quadrangular plate, and the GNSS main antenna 50 is installed at the symmetric center of the first plate surface 50 of the antenna main plate 60;

a first PRX antenna 10, wherein the first PRX antenna 10 is rectangular plate-shaped, the first PRX antenna 10 is mounted on a first plate surface 601 of the antenna main board 60, a plate surface 101 of the first PRX antenna 10 is perpendicular to the first plate surface 601 of the antenna main board 60, the first PRX antenna 10 is disposed at a first corner 603 of the first plate surface 601, and a long side 102 of the first PRX antenna 10 is parallel to a long side 605 of the antenna main board 60;

a second PRX antenna 20, wherein the second PRX antenna 20 is rectangular plate-shaped, the second PRX antenna 20 is mounted on the first plate surface 601 of the antenna main board 60, the plate surface 201 of the second PRX antenna 20 is perpendicular to the first plate surface 601 of the antenna main board 60, the second PRX antenna 20 is disposed at the second corner 604 of the first plate surface 601, and the long side 202 of the second PRX antenna 20 is parallel to the short side 606 of the antenna main board 60;

a third PRX antenna 30, where the third PRX antenna 30 is rectangular plate-shaped, the third PRX antenna 30 is mounted on the first plate surface 601 of the antenna main board 60, the plate surface 31 of the third PRX antenna 30 is perpendicular to the first plate surface 601 of the antenna main board 60, and the plate surface 301 of the third PRX antenna 30 is parallel to the plate surface 101 of the first PRX antenna 10;

a fourth PRX antenna 40, where the fourth PRX antenna 40 is rectangular plate-shaped, the fourth PRX antenna 40 is installed on the first plate surface 601 of the antenna main board 60, the plate surface 401 of the fourth PRX antenna 40 is perpendicular to the first plate surface 601 of the antenna main board 60, and the plate surface 401 of the fourth PRX antenna 40 is parallel to the plate surface 101 of the first PRX antenna 10.

< first embodiment 1>

In detail, referring to fig. 2 in a first embodiment, fig. 2 is an exploded view of a first embodiment of a hybrid GNSS and 5G antenna, and a first PRX antenna 10 includes: a first antenna main board 1031, a first return metal strip 1032, the first return metal strip 1032 being mounted on the first antenna main board 1031.

< first concrete example 2>

Specifically, in a first embodiment, please refer to fig. 2, fig. 2 is an exploded view of a first embodiment of a hybrid antenna of GNSS and 5G, a first isolation region 607 is disposed between the first PRX antenna 10 and the metal dielectric layer 602, a feeding point of the first loop metal strip 1032 is connected to a first semicircular metal plate 701 (i.e., a DRX MIMO antenna), and the first semicircular metal plate 701 is installed on the first isolation region 607.

< first embodiment 3>

Specifically, referring to fig. 1, the first plane angle 603 and the second plane angle 604 are opposite angles of the first board surface 601 of the antenna main board 60.

< first concrete example 4>

In detail, in a first embodiment, please refer to fig. 2, fig. 2 is an exploded view of a first embodiment of a hybrid antenna of GNSS and 5G, the second PRX antenna 20 includes: a second antenna main board 2031 and a second metal strip 2032, wherein the second metal strip 2032 is mounted on the second antenna main board 2031.

< first embodiment 5>

Specifically, in a first embodiment, please refer to fig. 2, fig. 2 is an exploded view of a first embodiment of a hybrid antenna of GNSS and 5G, a second isolation region 608 is disposed between the second PRX antenna 60 and the metal dielectric layer 602, a feeding point of the second loop metal strip 2032 is connected to a second semicircular metal sheet 702 (i.e., a DRX MIMO antenna), and the second semicircular metal sheet 2032 is mounted on the second isolation region 702.

< embodiment 2>

Referring to fig. 3, fig. 3 is a schematic view of a second embodiment of the present invention, in which the portion with diagonal filling is a metal sheet, and the portion without diagonal filling is a non-metal material, such as a non-conductor in a PCB.

the antenna structure comprises a first PRX antenna 10, wherein the first PRX antenna 10 is rectangular plate-shaped, the first PRX antenna 10 is mounted on a first plate surface 601 of the antenna main board 60, the plate surface 101 of the first PRX antenna 10 is perpendicular to the first plate surface 601 of the antenna main board 60, the first PRX antenna 10 is arranged at a first corner 603 of the first plate surface 601, and a long side 102 of the first PRX antenna 10 is parallel to a long side 605 of the antenna main board 60;

a fourth PRX antenna 40, where the fourth PRX antenna 40 is rectangular plate-shaped, the fourth PRX antenna 40 is mounted on the first plate surface 601 of the antenna main board 60, a plate surface 401 of the fourth PRX antenna 40 is perpendicular to the first plate surface 601 of the antenna main board 60, and the plate surface 401 of the fourth PRX antenna 40 is parallel to the plate surface 101 of the first PRX antenna 10.

The GNSS main antenna 50 includes a first GNSS main board 501 and a second GNSS main board 502, the first board surface of the second GNSS main board 502 is installed at the symmetric center of the first board surface 601 of the antenna main board 60, the second board surface of the second GNSS main board 502 is installed at the symmetric center of the first GNSS main board 501, the first board surface of the first GNSS main board 501 is connected with the second board surface of the second GNSS main board 502. The metal dielectric layer 602 is divided into a first metal layer 6021 and a second metal layer 6022 based on the bit line in the long side of the antenna main board 60.

< second concrete example 1>

Specifically, in a second embodiment, please refer to fig. 4, in which fig. 4 is an exploded view of a second embodiment of a hybrid antenna of GNSS and 5G, a GNSS isolation area 5012 is disposed at an edge of a second board surface of the first GNSS motherboard 501, and a first GNSS metal plate 5011 is disposed at a symmetric center of the second board surface of the first GNSS motherboard 501.

< second embodiment 2>

Specifically, referring to fig. 4 in a second embodiment, fig. 4 is an exploded view of a second embodiment of a hybrid antenna of GNSS and 5G, wherein a second GNSS metal plate 5021 is disposed on a second board surface of the second GNSS motherboard 502.

< second embodiment 3>

In more detail, referring to fig. 4 in a second embodiment, fig. 4 is an exploded view of a second embodiment of a hybrid GNSS and 5G antenna, the first PRX antenna 10 includes: a first antenna board 1031, a first metal strip 1032 of loop shape, the first metal strip 1032 of loop shape being mounted on the first antenna board 1031.

< second embodiment 4>

Specifically, in a second embodiment, please refer to fig. 4, fig. 4 is an exploded view of a second embodiment of a hybrid antenna of GNSS and 5G, a first isolation region 607 is disposed between the first PRX antenna 10 and the metal dielectric layer 602, a feeding point of the first loop metal strip 1032 is connected to a first semicircular metal plate 701 (i.e., a DRX MIMO antenna), and the first semicircular metal plate 701 is mounted on the first isolation region 607.

< second embodiment 5>

Specifically, referring to fig. 3, the first surface angle 603 and the second surface angle 604 are opposite angles of the first board surface 601 of the antenna main board 60.

< second concrete example 6>

In more detail, in a second embodiment, please refer to fig. 4, fig. 4 is an exploded view of a second embodiment of a hybrid GNSS and 5G antenna, the second PRX antenna 20 includes: a second antenna main board 2031 and a second circular metal strip 2032, wherein the second circular metal strip 2032 is installed on the second antenna main board 2031.

< second concrete example 7>

Specifically, in a second embodiment, please refer to fig. 4, fig. 4 is an exploded view of a second embodiment of a hybrid antenna of GNSS and 5G, a second isolation region 608 is disposed between the second PRX antenna 60 and the metal dielectric layer 602, a feeding point of the second loop metal strip 2032 is connected to a second semicircular metal sheet 702 (i.e., a DRX MIMO antenna), and the second semicircular metal sheet 2032 is mounted on the second isolation region 702.

In the second embodiment, the metal dielectric layer of the antenna main board is divided into two parts along the center line, and half of the ground is used for each main diversity antenna, so that the main diversity antennas are not grounded, and the isolation can be better and can reach below-10 dB.

< embodiment 3>

Referring to fig. 5, fig. 5 is a schematic view of a third embodiment of the present invention, in which the portion with diagonal filling is a metal sheet, and the portion without diagonal filling is a non-metal material, such as a non-conductor in a PCB.

the GNSS main antenna 50 is a quadrangular plate shape, and the GNSS main antenna 50 is installed at the symmetric center of the first plate surface 50 of the antenna main plate 60;

The GNSS main antenna 50 includes a first GNSS main board 501 and a second GNSS main board 502, the first board surface of the second GNSS main board 502 is installed at the symmetric center of the first board surface 601 of the antenna main board 60, the second board surface of the second GNSS main board 502 is installed at the symmetric center of the first GNSS main board 501, the first board surface of the first GNSS main board 501 is connected with the second board surface of the second GNSS main board 502.

< third concrete example 1>

Specifically, referring to fig. 6 in a third embodiment, fig. 6 is an exploded view of a third embodiment of a hybrid antenna of GNSS and 5G, a GNSS isolation area 5012 is disposed at an edge of a second board surface of the first GNSS motherboard 501, and a first GNSS metal board 5011 is disposed at a symmetric center of the second board surface of the first GNSS motherboard 501.

< third concrete example 2>

Specifically, in a third embodiment, please refer to fig. 6, wherein fig. 6 is an exploded view of a third embodiment of a hybrid antenna of GNSS and 5G, and a second GNSS metal plate 5021 is disposed on a second board of the second GNSS motherboard 502.

< third concrete example 3>

< third concrete example 4>

Specifically, in a third embodiment, please refer to fig. 6, fig. 6 is an exploded view of a third embodiment of a hybrid antenna of GNSS and 5G, a first isolation region 607 is disposed between the first PRX antenna 10 and the metal dielectric layer 602, a feeding point of the first loop metal strip 1032 is connected to a first semicircular metal plate 701, and the first semicircular metal plate 701 (i.e., a DRX MIMO antenna) is mounted on the first isolation region 607.

< third concrete example 5>

< third concrete example 6>

Specifically, in a third embodiment, please refer to fig. 6, wherein fig. 6 is an exploded view of a third embodiment of a hybrid GNSS and 5G antenna, and the second PRX antenna 20 includes: a second antenna main board 2031 and a second metal strip 2032, wherein the second metal strip 2032 is mounted on the second antenna main board 2031.

< third concrete example 7>

Specifically, in a third embodiment, please refer to fig. 6, fig. 6 is an exploded view of a third embodiment of a hybrid antenna of GNSS and 5G, a second isolation region 608 is disposed between the second PRX antenna 60 and the metal dielectric layer 602, a feeding point of the second loop metal strip 2032 is connected to a second semicircular metal sheet 702 (i.e., a DRX MIMO antenna), and the second semicircular metal sheet 2032 is mounted on the second isolation region 702.

< common advantageous effects of embodiments 1 to 3>

The utility model discloses can satisfy the isolation between the antenna, also can reduce the interference between 5G antenna and the GNSS. The antenna module is provided with 1 GNSS antenna and 4 5G antennas: the PRX main set antenna is responsible for receiving and transmitting radio frequency signals (the frequency is 824-960MHz,1710-2690MHz and 3300-5000 MHz); a DRX diversity antenna which is responsible for receiving radio frequency signals (the frequency is 869-960MHz,1800-2690MHz and 3300-5000 MHz); the PRX MIMO antenna is responsible for receiving and transmitting radio frequency signals (the frequency is 1880-2690MHz, and the frequency is 3300-5000 MHz) together with the main set antenna; the DRX MIMO antenna is responsible for receiving radio frequency signals (the frequency is 1880-2690MHz,3300-5000 MHz) together with the diversity antenna.

< second example Experimental data >

Fig. 7 is isolation test data of the GNSS and 5G hybrid antenna, and fig. 8 is isolation test data of the PRX antenna and DRX antenna of the GNSS and 5G hybrid antenna, where the horizontal axis is frequency data unit GHz and the vertical axis is isolation value unit dB.

The different solid and dashed lines in fig. 7 represent the isolation of the different antennas, which is higher at frequencies above 1.5 Ghz.

The solid and dotted lines in fig. 8 represent the isolation of the PRX antenna and the DRX antenna, which has less influence due to the difference between the reception and transmission signals.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A GNSS and 5G hybrid antenna, comprising:

the GNSS main antenna is in a quadrilateral plate shape and is arranged at the symmetrical center of the first plate surface of the antenna main plate;

the antenna comprises an antenna main board, a first PRX antenna and a second PRX antenna, wherein the antenna main board is provided with a first plate surface and a second plate surface;

the fourth PRX antenna is rectangular plate-shaped, is installed on the first plate surface of the antenna main board, is perpendicular to the first plate surface of the antenna main board, and is parallel to the first plate surface of the first PRX antenna.

2. The GNSS and 5G hybrid antenna of claim 1, wherein the first PRX antenna comprises: the antenna comprises a first antenna mainboard and a first metal strip in a shape of a loop, wherein the first metal strip in the shape of a loop is installed on the first antenna mainboard.

3. The GNSS and 5G hybrid antenna of claim 2, wherein a first isolation region is disposed between the first PRX antenna and the metal dielectric layer, a feeding point of the first loop metal strip is connected to a first semicircular metal sheet, and the first semicircular metal sheet is mounted on the first isolation region.

4. The GNSS and 5G hybrid antenna of claim 1, wherein the first and second corners are opposite corners of a first board of the antenna motherboard.

5. The GNSS and 5G hybrid antenna of claim 1, wherein the second PRX antenna comprises: the antenna comprises a second antenna main board and a second rectangular metal strip, wherein the second rectangular metal strip is arranged on the second antenna main board.

6. The GNSS and 5G hybrid antenna of claim 5, wherein a second isolation region is disposed between the second PRX antenna and the metal dielectric layer, and a feeding point of the second meander metal strip is connected to a second half-round metal strip, and the second half-round metal strip is mounted on the second isolation region.

7. The GNSS and 5G hybrid antenna according to claim 1, wherein the GNSS main antenna comprises a first GNSS main board and a second GNSS main board, the first board surface of the second GNSS main board is installed at the symmetrical center of the first board surface of the antenna main board, the first GNSS main board is installed at the symmetrical center of the second board surface of the second GNSS main board, and the first board surface of the first GNSS main board is connected with the second board surface of the second GNSS main board.

8. The GNSS and 5G hybrid antenna according to claim 7, wherein a GNSS isolation area is disposed at an edge of the second board surface of the first GNSS motherboard, and a first GNSS metal plate is disposed at a symmetric center of the second board surface of the first GNSS motherboard.

9. The GNSS and 5G hybrid antenna of claim 8, wherein a second GNSS metal plate is disposed on a second plate of the second GNSS motherboard.

10. The GNSS and 5G hybrid antenna of claim 1, wherein the metal dielectric layer is divided into a first metal layer and a second metal layer based on a long edge middle line of the antenna motherboard.