CN218783227U

CN218783227U - Small-size six unification 5G combination antenna

Info

Publication number: CN218783227U
Application number: CN202222887852.XU
Authority: CN
Inventors: 杨柳
Original assignee: Changzhou Ketewa Electronics Co ltd
Current assignee: Changzhou Ketewa Electronics Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-03-31
Anticipated expiration: 2032-11-01

Abstract

The utility model relates to a vehicle antenna detects technical field, in particular to small-size six unification 5G combination antenna, including hollow shell, place the PCB bottom plate of hollow shell in and the radio frequency connector of peripheral hardware in hollow shell, arrange 5G main antenna, 5G auxiliary antenna, 5G MIMO main antenna, 5G MIMO auxiliary antenna, WIFI antenna and GNSS antenna module on the PCB bottom plate, 5G main antenna, 5G auxiliary antenna, 5G MIMO main antenna, 5G MIMO auxiliary antenna, WIFI antenna and GNSS antenna module are connected with the radio frequency connector through the coaxial line respectively, 5G main antenna and 5G auxiliary antenna are two-sided quarter ellipse structure, the WIFI antenna is resonance minor structure; the utility model provides a small-size six unification 5G combination antennas with most antennas, the size is less and the functional.

Description

Small-size six unification 5G combination antenna

Technical Field

The utility model relates to a vehicle antenna technical field, in particular to small-size six unification 5G combination antennas.

Background

The roof antenna, also called vehicle antenna, is a mobile communication antenna designed and installed on a vehicle, and is mainly used for receiving radio signals and facilitating the vehicle-mounted radio to listen to programs. In recent years, with the application and development of 5G technology and MIMO, the number of vehicle-mounted antennas is increased, but at the same time, the vehicle-mounted antennas are developed toward low cost and miniaturization.

According to the design of the traditional antenna system, because the size of the PCB bottom plate is limited, if a plurality of antennas are gathered on the PCB bottom plate, the distance between the antennas is too close, which causes the isolation of the antennas to be poor, thereby affecting the performance of the antennas. Therefore, how to design a plurality of antennas in a limited space and ensure that the antennas have good performance is of great significance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defect and not enough that prior art exists, providing a small-size six unification 5G combination antenna that has most antennas, and the size is less and the functional is good.

Realize the utility model discloses the technical scheme of purpose is: the utility model provides a small-size six unification 5G combination antenna, places the PCB bottom plate of cavity shell in, and the radio frequency connector of peripheral hardware in the cavity shell in including the cavity shell, arrange 5G main antenna, 5G auxiliary antenna, 5G MIMO main antenna, 5G MIMO auxiliary antenna, WIFI antenna and GNSS antenna module on the PCB bottom plate, 5G main antenna, 5G auxiliary antenna, 5G MIMO main antenna, 5G MIMO auxiliary antenna, WIFI antenna and GNSS antenna module are connected with the radio frequency connector through the coaxial line respectively, 5G main antenna and 5G auxiliary antenna are two-sided quarter ellipse structure, the WIFI antenna is resonance minor matters structure.

Further, 5G main antenna and 5G auxiliary antenna install respectively at the both ends of PCB bottom plate along length direction, 5G MIMO main antenna and 5G MIMO auxiliary antenna install respectively at the both ends middle part of PCB bottom plate along width direction, and relatively perpendicular with 5G main antenna and 5G auxiliary antenna position, the WIFI antenna mounting is at the one corner end of PCB bottom plate, GNSS antenna module installs the central point at the PCB bottom plate and puts.

Furthermore, the 5G main antenna and the 5G auxiliary antenna are composed of PCB top plates and PCB side plates, the PCB top plates are connected with the PCB bottom plate through the PCB side plates, and the PCB side plates are of double-sided quarter oval structures.

Furthermore, the PCB roof is single face board, the PCB curb plate is the double sided board, and uses a top angle end of PCB curb plate as the center, is equipped with a plurality of via holes in the quarter oval region.

Further, still be equipped with the support column between PCB bottom plate and the PCB roof, the top and the PCB roof of support column are connected, the bottom and the PCB bottom plate of support column are connected.

Further, the bottom of 5G MIMO main antenna, 5G MIMO auxiliary antenna and WIFI antenna respectively with PCB bottom plate joint, 5G MIMO main antenna, 5G MIMO auxiliary antenna and WIFI antenna are single-face board.

Furthermore, the GNSS antenna module is composed of a GNSS ceramic antenna, a low noise amplifier and a shielding case.

Further, the outer dimension of the hollow housing is 160 × 80 × 30mm.

Furthermore, the metal bracket is clamped and connected with the bottom surface of the hollow shell.

Furthermore, a plurality of clamping blocks are arranged on the bottom surface of the hollow shell, clamping holes corresponding to the clamping blocks are formed in the metal support, and the clamping blocks penetrate through the clamping holes and are clamped with the clamping holes.

After the technical scheme is adopted, the utility model discloses following positive effect has:

(1) The utility model discloses well 5G main antenna and the vice antenna of 5G all adopt two-sided quarter ellipse structure, make the antenna have the bandwidth in less space wide, the standing wave is little and efficient characteristics such as high, 5G antenna standing wave low frequency (824-960 MHz) satisfies and is less than 3, high frequency (1710-5000 MHz) is less than 2.5, WIFI antenna adopts resonance minor matters structure simultaneously, has guaranteed that the antenna has reduced the antenna size when good performance;

(2) The layout design of the six antennas on the PCB bottom plate ensures that the layout of the antennas is not too compact and the isolation is better, thereby further ensuring the performance of the antennas;

(3) The utility model improves the stability of the antenna by the arrangement of the supporting columns;

(4) The utility model discloses a metal support's setting, the installation of the antenna of being convenient for has improved the application scope of antenna.

Drawings

In order that the manner in which the present invention is made more readily and clearly understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, wherein:

FIG. 1 is a schematic structural view of example 1;

fig. 2 is a layout diagram of the antennas in embodiment 1;

FIG. 3 is a schematic view of a support column in example 1;

FIG. 4 is a schematic view of a via in example 1;

FIG. 5 is a schematic view of a card slot in embodiment 1;

FIG. 6 is a graph of the voltage standing wave ratio of the 5G antenna;

fig. 7 is a graph of WIFI antenna voltage standing wave ratio;

FIG. 8 is a graph of GNSS antenna voltage standing wave ratio;

FIG. 9 is a graph of 5G antenna isolation;

FIG. 10 is an exploded view of embodiment 2;

fig. 11 is an enlarged view of a portion a in fig. 10.

In the figure: 1. a hollow housing; 2. a PCB backplane; 3. a radio frequency connector; 4. a 5G main antenna; 5. 5G auxiliary antennas; 6. a 5G MIMO main antenna; 7. a 5G MIMO secondary antenna; 8. a WIFI antenna; 9. a GNSS antenna module; 10. a coaxial line; 11. a PCB top plate; 12. a PCB side plate; 13. a via hole; 14. a support column; 15. a metal bracket; 16. a clamping block; 17. a clamping hole; 18. a wire slot; 19. a card slot; 20. limiting ribs; 21. clamping a plate; 22. a gusset; 23. and (7) installing holes.

Detailed Description

Example 1

As shown in fig. 1-9, a small-sized six-in-one 5G combined antenna comprises a hollow housing 1, a PCB bottom plate 2 arranged in the hollow housing 1, and a radio frequency connector 3 arranged outside the hollow housing 1, a 5G main antenna 4, a 5G auxiliary antenna 5, a 5G MIMO main antenna 6, a 5G MIMO auxiliary antenna 7, a WIFI antenna 8 and a GNSS antenna module 9 are arranged on the PCB bottom plate 2, the 5G main antenna 4, the 5G auxiliary antenna 5, the 5G MIMO main antenna 6, the 5G MIMO auxiliary antenna 7, the WIFI antenna 8 and the GNSS antenna module 9 are respectively connected with the radio frequency connector 3 through a coaxial line 10, the 5G main antenna 4 and the 5G auxiliary antenna 5 are both double-sided quarter ellipse structures, the WIFI antenna 8 is a resonant branch structure, the 5G main antenna 4 and the 5G auxiliary antenna 5 both adopt double-sided quarter ellipse structures, so that the antenna has the characteristics of wide bandwidth, small standing wave and good efficiency in a small space, the standing wave (high-frequency 960 MHz) of the 5G antenna satisfies that less than 3, the high-frequency (1710-5000 MHz) and the high-frequency (2.1710-5G auxiliary antenna) and the high-frequency (960 MHz) of the short-5000 MHz) of the short-frequency antenna, and the short-2 GHz of the antenna, and the short-branch structure of the PCB bottom plate, and the antenna are close to the PCB connector 2.5G antenna, thereby ensuring that the PCB antenna has good resonant structure, and the good resonant side of the PCB. In addition, the 5G main antenna 4, the 5G sub-antenna 5, the 5G MIMO main antenna 6, and the 5G MIMO sub-antenna 7 share the PCB chassis 2, thereby reducing the manufacturing cost. Specifically, the external dimension of the hollow shell 1 is 160 × 80 × 30mm, the working frequency bands of the 5G main antenna 4 and the 5G auxiliary antenna 5 are 824-960MHz/1710-2690MHz/3300-5000MHz, the working frequency bands of the 5G MIMO main antenna 6 and the 5G MIMO auxiliary antenna 7 are 1710-2690MHz/3300-5000MHz, the working frequency band of the wifi antenna 8 is 2400-2485MHz/5150-5850mhz, the gnss antenna module 9 comprises BDS B1, GPS L1 and GLO L1 frequency bands, the radio frequency connector 3 is two four-in-one Mini Fakra radio frequency connectors, and the coaxial line 10 is RG302.

The 5G main antenna 4 and the 5G auxiliary antenna 5 are respectively installed at two ends of the PCB bottom plate 2 along the length direction, the isolation degree between the two antennas is improved, the 5G MIMO main antenna 6 and the 5G MIMO auxiliary antenna 7 are respectively installed at the middle parts of two ends of the PCB bottom plate 2 along the width direction and are relatively vertical to the 5G main antenna 4 and the 5G auxiliary antenna 5, so that the two antennas are orthogonal to the maximum radiation direction of 5G

main antenna

4 and 5G auxiliary antenna 5 directional patterns, the isolation degree between the antennas is improved, the WIFI antenna 8 is installed at one corner end of the PCB bottom plate 2, good isolation degree between the antenna and each antenna is ensured, the GNSS antenna module 9 is installed at the central position of the PCB bottom plate 2, the directional patterns of the GNSS antenna module 9 are better in symmetry, and the circular polarization performance is better. The layout design of the six antennas on the PCB bottom plate 2 ensures that the antenna layout is not too compact and the isolation is better, thereby further ensuring the performance of the antenna.

The 5G main antenna 4 and the 5G auxiliary antenna 5 are composed of a PCB top plate 11 and a PCB side plate 12, the PCB top plate 11 is connected with the PCB bottom plate 2 through the PCB side plate 12, the PCB side plate 12 is of a double-faced quarter oval structure, and the part is mainly related to high frequency (1710-5000 MHz) of the antenna. Specifically, the PCB top plate 11 is a single-sided plate, the PCB side plate 12 is a double-sided plate, and a top corner end of the PCB side plate 12 is used as a center, a plurality of via holes 13 are arranged in a quarter-ellipse region, a vertex of a minor half axis of the quarter-ellipse is a feeding position of the antenna, an antenna feeding point is connected with a coaxial line 10 through a microstrip line of the PCB bottom plate 2, the coaxial line 10 is fixed through a wire slot 18, the PCB side plate 12 is inserted into the PCB top plate 11 at a position of the major half axis and connected with the PCB top plate 11, the PCB side plate 12 is respectively perpendicular to the PCB top plate 11 and the PCB bottom plate 2, the PCB top plate 11 is mainly related to a low frequency part (824-960 MHz) of the antenna, and meanwhile, for better low frequency performance of the 5G main antenna 4 and the 5G auxiliary antenna 5, a part of the PCB bottom plate 2 corresponding to the PCB top plate 11 is subjected to clearance treatment, the two PCB top plates 11 extend outwards and are opposite in direction, which is beneficial to further improvement of isolation of low frequency between the antennas, and the dielectric substrates of the 5G main antenna 4 and the 5G auxiliary antenna 5G are both made of FR4 (glass fiber epoxy resin).

Still be equipped with support column 14 between PCB bottom plate 2 and the PCB roof 11, the top and the PCB roof 11 of support column 14 are connected, and the bottom and the PCB bottom plate 2 of support column 14 are connected, through the setting of support column 14, have improved the stability of antenna.

The bottom of 5G MIMO main antenna, 5G MIMO auxiliary antenna and WIFI antenna respectively with PCB bottom plate joint, 5G MIMO

main antenna

6, 5G MIMO auxiliary antenna 7 and WIFI antenna 8 are single-face board. Specifically, the 5G MIMO main antenna 6, the 5G MIMO auxiliary antenna 7 and the WIFI antenna 8 are respectively and vertically inserted into the card slot 19 of the PCB backplane 2, so as to ensure the stability of the antennas. The dielectric substrates of the 5G MIMO main antenna 6, the 5GMIMO auxiliary antenna 7 and the WIFI antenna 8 are all made of FR4 materials, the antenna feed point is connected with the coaxial line 10 through a microstrip line section of the PCB bottom plate 2, and the coaxial line 10 is fixed through the line slot 18.

The GNSS antenna module 9 is composed of a GNSS ceramic antenna, a low noise amplifier, and a shield case. Specifically, GNSS antenna module 9 has adopted 25mm 4 mm's single feed circular polarization ceramic antenna, and GNSS antenna module 9 passes through the gum to be fixed in spacing muscle 20 department for GNSS antenna module 9 also upwards raises the position of antenna when fixed more firm, is favorable to the circular polarization performance of antenna, and low noise amplifier adopts the design framework that the two-stage is enlargied, and gain is greater than 28dBic in the operating frequency.

Example 2

As shown in fig. 10 and 11, in this embodiment, a metal bracket 15 is added on the basis of embodiment 1, the metal bracket 15 is connected with the bottom surface of the hollow housing 1 in a clamping manner, and the installation of the antenna is facilitated by the arrangement of the metal bracket 15, so that the application range of the antenna is improved.

The bottom surface of the hollow shell 1 is provided with a plurality of clamping blocks 16, the metal bracket 15 is provided with clamping holes 17 corresponding to the clamping blocks 16, and the clamping blocks 16 penetrate through the clamping holes 17 and are clamped with the clamping holes 17. Specifically, fixture block 16 includes L type cardboard 21 and scute 22, and scute 22 is installed perpendicularly in cardboard 21 inboard middle part, and card hole 17 is the type of calligraphy, and fixture block 16 and card hole 17 looks adaptation are equipped with mounting hole 23 at the edge of metal support 15. When the clamping block 16 is installed, the clamping block 16 penetrates through the wide hole of the clamping hole 17, then the hollow shell 1 is moved towards the narrow hole direction, and the angle plate 22 enters the narrow hole of the clamping hole 17, so that the clamping of the clamping block 16 and the clamping hole 17 is realized.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a small-size six unification 5G combination antenna, includes cavity shell (1), places PCB bottom plate (2) of cavity shell (1) in and goes out radio frequency connector (3) of installing in cavity shell (1) its characterized in that: PCB bottom plate (2) is last to have arranged 5G main antenna (4), 5G auxiliary antenna (5), 5G MIMO main antenna (6), 5G MIMO auxiliary antenna (7), WIFI antenna (8) and GNSS antenna module (9), 5G main antenna (4), 5G auxiliary antenna (5), 5G MIMO main antenna (6), 5G MIMO auxiliary antenna (7), WIFI antenna (8) and GNSS antenna module (9) are connected with radio frequency connector (3) through coaxial line (10) respectively, 5G main antenna (4) and 5G auxiliary antenna (5) are two-sided quarter ellipse configuration, WIFI antenna (8) are resonance minor matters structure.

2. The small-sized six-in-one 5G combined antenna according to claim 1, wherein: the utility model discloses a PCB, including PCB bottom plate (2), 5G main antenna (4) and 5G auxiliary antenna (5), install respectively at the both ends of PCB bottom plate (2) along length direction 5G MIMO main antenna (6) and 5G MIMO auxiliary antenna (7) along width direction install respectively at the both ends middle part of PCB bottom plate (2), and with 5G main antenna (4) and 5G auxiliary antenna (5) position relative perpendicular, the one corner end at PCB bottom plate (2) is installed in WIFI antenna (8), the central point at PCB bottom plate (2) is installed in GNSS antenna module (9).

3. The small-sized six-in-one 5G combined antenna according to claim 2, wherein: 5G main antenna (4) and 5G auxiliary antenna (5) constitute by PCB roof (11) and PCB curb plate (12), PCB roof (11) are connected with PCB bottom plate (2) through PCB curb plate (12), PCB curb plate (12) are two-sided quarter ellipse configuration.

4. A compact six-in-one 5G combination antenna according to claim 3, wherein: the PCB top plate (11) is a single-sided plate, the PCB side plates (12) are double-sided plates, one corner end of the top of each PCB side plate (12) is used as the center, and a plurality of through holes (13) are arranged in the quarter oval area.

5. The small-sized six-in-one 5G combined antenna according to claim 4, wherein: still be equipped with between PCB bottom plate (2) and PCB roof (11) support column (14), the top and PCB roof (11) of support column (14) are connected, the bottom and the PCB bottom plate (2) of support column (14) are connected.

6. The small-sized six-in-one 5G combined antenna according to claim 1, wherein: the bottom of 5G MIMO main antenna (6), 5G MIMO auxiliary antenna (7) and WIFI antenna (8) respectively with PCB bottom plate (2) joint, 5G MIMO main antenna (6), 5G MIMO auxiliary antenna (7) and WIFI antenna (8) are single-panel.

7. The small-sized six-in-one 5G combined antenna according to claim 1, wherein: the GNSS antenna module (9) consists of a GNSS ceramic antenna, a low-noise amplifier and a shielding case.

8. The small-sized six-in-one 5G combined antenna as claimed in claim 1, wherein: the outer dimension of the hollow housing (1) is 160 x 80 x 30mm.

9. A compact six-in-one 5G combined antenna according to any one of claims 1-8, characterised in that: the hollow shell is characterized by further comprising a metal support (15), wherein the metal support (15) is connected with the bottom surface of the hollow shell (1) in a clamping mode.

10. The small-sized six-in-one 5G combined antenna according to claim 9, wherein: the bottom surface of the hollow shell (1) is provided with a plurality of clamping blocks (16), the metal bracket (15) is provided with clamping holes (17) corresponding to the clamping blocks (16), and the clamping blocks (16) penetrate through the clamping holes (17) and are clamped with the clamping holes (17).