CN215451744U

CN215451744U - 5G-NR, WIFI-MIMO and GNSS high-precision combined antenna

Info

Publication number: CN215451744U
Application number: CN202122300148.5U
Authority: CN
Inventors: 傅胜明; 李文博; 周雪刚; 陈小忠
Original assignee: Zhejiang Jinyichang Technology Co ltd
Current assignee: Zhejiang Jinyichang Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-01-07
Anticipated expiration: 2031-09-23

Abstract

The utility model relates to a 5G-NR, WIFI-MIMO and GNSS high-precision combined antenna, wherein 5G-MIMO antennas, WIFI-MIMO antennas and GNSS medium antennas are all arranged on a PCB double-sided copper-clad general assembly board, the 5G-MIMO antennas and the WIFI-MIMO antennas are arranged on an outer ring of the top surface of the PCB double-sided copper-clad general assembly board, the 5G MIMO antennas are of dipole-like and gap-coupled antenna structures, the WIFI-MIMO antennas are of pifa structures and pure metal air medium combined materials, the 5G-MIMO antennas and the WIFI-MIMO antennas are of multi-branch structures, the GNSS medium antennas are of double-layer four-feed structures and are arranged on an inner ring of the top surface of the PCB assembly board, a radio frequency circuit of the antennas is arranged between the bottom surface of the PCB assembly board and a shielding case, and the PCB double-sided copper-clad general assembly board is welded and combined with the PCB assembly board. The structure is arranged in a limited space, and by comprehensive matching of the expanded bandwidth and the multiple frequency bands, the problem of comprehensive matching of the expanded bandwidth and the multiple frequency bands in the miniaturization design of the antenna is effectively solved, and the space is reasonably utilized to the maximum extent while the normal work of the multiple antennas is ensured.

Description

5G-NR, WIFI-MIMO and GNSS high-precision combined antenna

Technical Field

The utility model relates to the technical field of antennas for wireless communication and satellite navigation positioning, in particular to a high-precision combined antenna of 5G-NR, WIFI-MIMO and GNSS.

Background

Along with the rapid development of mobile communication and satellite navigation positioning technology in the prior art, the precision requirement of a satellite navigation positioning antenna is greatly improved, in the aspect of communication antennas, along with the popularization of 5G communication technology and the improvement of communication technology, more than one antenna is already the standard configuration of the 5G antenna, the volume of the combined antenna is further expanded according to the MIMO technology of the antenna, the V2X technology and the remote and unmanned technology are gradually developed, the requirement on a multifunctional combined antenna with good performance is also great, but the combined antenna with high precision and the type of +5G + V2X in the current market generally has the problems of bandwidth expansion, multi-band comprehensive matching and the like while solving the miniaturization problem of the combined antenna.

Placing the LTE-MIMO antenna, the WIFI-MIMO antenna, and the GNSS dielectric antenna in the CN202022153066.8LTE-MIMO, WIFI-MIMO, and GNSS combined antenna in the same antenna housing, compared with the present patent, the interference between different antennas in the antenna housing is stronger, and in the 5G communication era, the setting of the 4GLTE antenna is laggard.

Disclosure of Invention

In order to solve the problems, the utility model provides a high-precision combined antenna of 5G-NR, WIFI-MIMO and GNSS, which combines a plurality of antennas in a limited space, has high space utilization rate among different antennas and simultaneously covers a plurality of frequency bands.

In order to achieve the purpose, the 5G-NR, WIFI-MIMO and GNSS high-precision combined antenna mainly comprises an antenna base and an antenna shell, and is characterized in that the antenna base is arranged in a fillet ladder shape, a PCB double-sided copper-clad assembly plate matched with the antenna base in shape is arranged on the antenna base, a hollow-out position is formed in the middle of the PCB double-sided copper-clad assembly plate, a PCB assembly plate is arranged on the hollow-out position, and a GNSS medium antenna is arranged on the PCB assembly plate; a plurality of installation positions are arranged around the hollowed-out position of the PCB double-sided copper-clad general assembly board in a surrounding mode, the installation positions are provided with 5G-MIMO antennas and WIFI-MIMO antennas in a matching mode, the 5G-MIMO antennas and the WIFI-MIMO antennas are respectively arranged on different planes, and the 5G-MIMO antennas and the WIFI-MIMO antennas are arranged on the outer ring of the hollowed-out position in an included angle mode. According to the structure, the 5G-MIMO antenna, the WIFI-MIMO antenna and the GNSS medium antenna are welded on the PCB double-sided copper-clad assembly board, so that the space is reasonably utilized to the maximum extent while the normal work of the plurality of antennas is ensured, and meanwhile, the plurality of mounting positions are arranged on the PCB double-sided copper-clad assembly board, so that the number of the antennas can be freely increased or decreased according to the requirement; and the 5G-MIMO antenna and the WIFI MIMO antenna are respectively arranged on different planes, so that the isolation between the antennas is increased.

The GNSS medium antenna is of a double-layer four-feed structure, a radiation surface arranged on the GNSS medium antenna is parallel to a plane where a PCB double-sided copper-clad assembly plate is located, an adjustable branch knot is arranged on the radiation surface of the GNSS medium antenna, a shielding cover is arranged below a hollow position of the PCB double-sided copper-clad assembly plate, the shielding cover is buckled on the lower bottom surface of the PCB assembly plate, a radio frequency circuit of the antenna is arranged between the shielding cover and the PCB assembly plate, and a shielding layer and a shielding cover position of the radio frequency circuit are matched with the hollow position of the PCB double-sided copper-clad assembly plate; the 5G-MIMO antenna is of a dipole-like and gap-coupled antenna structure, the fillet ladder-shaped installation positions on the inner sides of two fillets on the long edge of the PCB double-sided copper-clad general assembly plate are provided with a main 5G-MIMO antenna dielectric plate, and the installation positions on the inner sides of two fillets on the short edge are provided with an auxiliary 5G-MIMO antenna dielectric plate; the main 5G-MIMO antenna dielectric plate and the auxiliary 5G-MIMO antenna dielectric plate are arranged by adopting a PCB structure, the plane of the main and auxiliary 5G-MIMO antenna dielectric plate is vertical to the plane of the PCB double-sided copper-clad general assembly plate, the upper ends of the main 5G-MIMO antenna dielectric plate and the auxiliary 5G-MIMO antenna dielectric plate are connected with an additional radiation branch, the inner sides of two fillets on the long edge of the PCB double-sided copper-clad general assembly plate are also provided with clamping positions, the clamping position is provided with a lower additional radiation branch knot which is arranged at the lower side of the PCB double-sided copper-clad general assembly plate, the position of the lower extra radiation branch is matched with the position of the main 5G-MIMO antenna dielectric plate, and a coaxial cable shielding layer arranged in a radio frequency circuit of the 5G-MIMO antenna penetrates through a missing area formed on the outer side wall of the shielding cover to be welded with the PCB double-sided copper-clad general assembly plate; the WIFI-MIMO antenna is arranged by adopting a pifa structure and a pure metal air medium combined material, and is provided with a long edge of the PCB double-sided copper-clad assembly board as a bottom edge and a short edge of the PCB double-sided copper-clad assembly board as a top edge; the WIFI-MIMO antenna is respectively supported and arranged at the middle positions of the top edge and the bottom edge of the PCB double-sided copper-clad assembly plate through a metal feed point of the WIFI-MIMO antenna, and an obvious height difference exists between the WIFI-MIMO antenna and the 5G-MIMO antenna. The structure adopts a double-layer four-feed structure through the GNSS medium antenna, a shielding cover is additionally welded on a radio frequency circuit part of the antenna, and an independent PCB assembly plate is adopted and combined with a total assembly plate in a welding way, so that the interference on the antenna is effectively reduced, the precision of the antenna is enhanced, and meanwhile, the 5G-MIMO antenna is of a dipole-like and gap-coupled antenna structure, so that the utilization rate of space is enhanced; the branches of the 5G-MIMO antenna are excited through gap coupling; capacitive loading of the branches is realized, the antenna sensitivity is reduced, and the bandwidth is favorably expanded; the shielding layer of the radio frequency circuit coaxial cable of the 5G-MIMO antenna is welded with the PCB copper-clad plate, so that the ground is large, the antenna has a strong coupling effect, and meanwhile, the large design redundancy is realized, the bandwidth is expanded in a large range, and the multi-band coverage is realized; the WIFI-MIMO antenna adopts a pifa structure and a pure metal air medium combined material, so that the miniaturization and good performance of the antenna can be effectively guaranteed while the overall cost is reduced.

According to a further scheme, auxiliary 5G-MIMO antenna dielectric plates are arranged on two sides of a WIFI-MIMO antenna arranged on the top edge of the PCB double-sided copper-clad general assembly plate, and main 5G-MIMO antenna dielectric plates are arranged on two sides of the WIFI-MIMO antenna arranged on the bottom edge of the PCB double-sided copper-clad general assembly plate; the WIFI-MIMO antenna and the 5G-MIMO antenna adopt a multi-branch structure, and the length of each branch structure corresponds to a quarter wavelength of different frequency bands respectively. The structure is arranged, and the lengths of all the branch structures in the WIFI-MIMO antenna and the 5G-MIMO antenna respectively correspond to quarter wavelengths of different frequency bands, so that multi-band coverage is realized.

The 5G-NR, WIFI-MIMO and GNSS high-precision combined antenna is characterized in that the 5G-MIMO antenna, the WIFI-MIMO antenna and the GNSS medium antenna are all arranged on a PCB double-sided copper-clad general assembly board, the 5G-MIMO antenna and the WIFI-MIMO antenna are arranged on an outer ring of the top surface of the PCB double-sided copper-clad general assembly board, the 5G MIMO antenna is of an antenna structure with similar dipoles and coupled with gaps, the WIFI-MIMO antenna is of a pifa structure and made of pure metal air medium combined materials, the 5G-MIMO antenna and the WIFI-MIMO antenna are of a multi-branched structure, the GNSS medium antenna is of a double-layer four-feed structure and is arranged on an inner ring of the top surface of the PCB assembly board, a radio frequency circuit of the antenna is arranged between the bottom surface of the PCB assembly board and a shielding case, and the PCB double-sided copper-clad general assembly board is welded and combined with the PCB assembly board. The structure is arranged in a limited space, and by comprehensive matching of the expanded bandwidth and the multiple frequency bands, the problem of comprehensive matching of the expanded bandwidth and the multiple frequency bands in the miniaturization design of the antenna is effectively solved, and the space is reasonably utilized to the maximum extent while the normal work of the multiple antennas is ensured.

Drawings

Fig. 1 is an isometric view of a 5G-NR, WIFI-MIMO and GNSS high precision combined antenna.

Fig. 2 is an exploded view of a 5G-MIMO antenna, a WIFI-MIMO antenna, and a GNSS medium antenna.

Fig. 3 is a schematic view of a 5G-MIMO antenna and a WIFI-MIMO antenna installation.

Fig. 4 is a graph of a test standing wave for a main 5G-MIMO antenna dielectric slab.

Fig. 5 is a test standing wave pattern for a WIFI-MIMO antenna.

Fig. 6 is a standing wave diagram of the sub-5G-MIMO antenna dielectric plate.

Fig. 7 is a test pattern of a GNSS dielectric antenna (low frequency).

Fig. 8 is a test pattern of a GNSS dielectric antenna (high frequency).

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1.

As shown in fig. 1 and fig. 2, the 5G-NR, WIFI-MIMO and GNSS high-precision combined antenna described in this embodiment mainly includes an antenna base 1 and an antenna housing 2, the antenna base 1 is in a trapezoidal shape with rounded corners, a PCB double-sided copper-clad assembly board 3 matched with the antenna base 1 in shape is disposed on the antenna base 1, a hollow 4 is disposed in the middle of the PCB double-sided copper-clad assembly board 3, a PCB assembly board 5 is disposed on the hollow 4, and a GNSS dielectric antenna 6 is disposed on the PCB assembly board 5; a plurality of installation positions are arranged around the hollow position of the PCB double-sided copper-clad general assembly board 3 in a surrounding mode, 5G-MIMO antennas and WIFI-MIMO antennas 9 are arranged on the installation positions in a matching mode, the 5G-MIMO antennas and the WIFI-MIMO antennas 9 are respectively arranged on different planes, and the 5G-MIMO antennas and the WIFI-MIMO antennas 9 are arranged on the outer ring of the hollow position 4 at an included angle.

As shown in fig. 2 and 3, the GNSS dielectric antenna 6 is a double-layer four-feed structure, a radiation surface arranged on the GNSS dielectric antenna 6 is parallel to a plane where the PCB double-sided copper-clad assembly board 3 is located, an adjustable branch is arranged on the radiation surface of the GNSS dielectric antenna 6, a shielding cover 8 is arranged below a hollow position 4 of the PCB double-sided copper-clad assembly board 3, the shielding cover 8 is buckled on a lower bottom surface of the PCB assembly board 5, a radio frequency circuit of the antenna is arranged between the shielding cover 8 and the PCB assembly board 5, and a shielding layer and the shielding cover 8 of the radio frequency circuit are matched with the hollow position 4 of the PCB double-sided copper-clad assembly board 3; the 5G-MIMO antenna is of a dipole-like and gap-coupled antenna structure, the fillet ladder-shaped installation positions on the inner sides of two fillets on the long edge of the PCB double-sided copper-clad assembly plate 3 are provided with main 5G-MIMO antenna dielectric plates 10, and the installation positions on the inner sides of two fillets on the short edge are provided with auxiliary 5G-MIMO antenna dielectric plates 11; the main 5G-MIMO antenna dielectric plate 10 and the auxiliary 5G-MIMO antenna dielectric plate 11 are arranged by adopting a PCB structure, the plane of the primary and secondary 5G-MIMO antenna dielectric plate is vertical to the plane of the PCB double-sided copper-clad general assembly plate 3, the upper ends of the main 5G-MIMO antenna dielectric plate 10 and the auxiliary 5G-MIMO antenna dielectric plate 11 are connected with an additional radiation branch 12, the inner sides of two fillets on the long edge of the PCB double-sided copper-coated general assembly board 3 are also provided with clamping positions 13, the clamping position 13 is provided with a lower additional radiation branch section 14, the lower additional radiation branch section 14 is arranged at the lower side of the PCB double-sided copper-clad general assembly plate 3, the position of the lower extra radiation branch 14 is matched with the position of the main 5G-MIMO antenna dielectric plate 10, and a coaxial cable 7 shielding layer arranged in a radio frequency circuit of the 5G-MIMO antenna penetrates through a missing area formed on the outer side wall of the shielding cover 8 to be welded with the PCB double-sided copper-clad assembly plate 3; the WIFI-MIMO antenna 9 is arranged by adopting a pifa structure and a pure metal air medium combined material, the long edge of the PCB double-sided copper-clad assembly board 3 is set as a bottom edge, and the short edge of the PCB double-sided copper-clad assembly board 3 is set as a top edge; the WIFI-MIMO antenna 9 is respectively supported and arranged at the middle positions of the top edge and the bottom edge of the PCB double-sided copper-clad assembly plate 3 through a metal feed point of the WIFI-MIMO antenna 9, and an obvious height difference exists between the WIFI-MIMO antenna 9 and the 5G-MIMO antenna.

Two sides of a WIFI-MIMO antenna 9 arranged on the top edge of the PCB double-sided copper-clad general assembly board 3 are provided with auxiliary 5G-MIMO antenna dielectric plates 11, and two sides of the WIFI-MIMO antenna 9 arranged on the bottom edge of the PCB double-sided copper-clad general assembly board 3 are provided with main 5G-MIMO antenna dielectric plates 10; the WIFI-MIMO antenna and the 5G-MIMO antenna adopt a multi-branch structure, and the length of each branch structure corresponds to a quarter wavelength of different frequency bands respectively.

The combined antenna obtained in the present embodiment is described with reference to fig. 4, 5, 6, 7, and 8, and has excellent performance in various aspects.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A5G-NR, WIFI-MIMO and GNSS high-precision combined antenna mainly comprises an antenna base (1) and an antenna shell (2), and is characterized in that the antenna base (1) is arranged in a fillet ladder shape, a PCB double-sided copper-clad assembly plate (3) matched with the antenna base (1) in shape is arranged on the antenna base (1), a hollow-out position (4) is formed in the middle of the PCB double-sided copper-clad assembly plate (3), a PCB assembly plate (5) is arranged on the hollow-out position (4), and a GNSS medium antenna (6) is arranged on the PCB assembly plate (5); a plurality of installation positions are arranged around the hollowed-out positions of the PCB double-sided copper-clad general assembly board (3) in a surrounding mode, 5G-MIMO antennas and WIFI-MIMO antennas (9) are arranged on the installation positions in a matching mode, the 5G-MIMO antennas and the WIFI-MIMO antennas (9) are respectively arranged on different planes, and the 5G-MIMO antennas and the WIFI-MIMO antennas (9) are arranged on the outer ring of the hollowed-out positions (4) in an included angle mode.

2. The 5G-NR, WIFI-MIMO and GNSS high precision combined antenna according to claim 1, wherein the GNSS dielectric antenna (6) is a double-layer four-feed structure, a radiation surface arranged on the GNSS dielectric antenna (6) is parallel to a plane where the PCB double-sided copper-clad assembly board (3) is located, an adjustable branch is arranged on the radiation surface of the GNSS dielectric antenna (6), a shielding cover (8) is arranged below the hollow-out position (4) of the PCB double-sided copper-clad assembly board (3), the shielding cover (8) is buckled on the lower bottom surface of the PCB assembly board (5), a radio frequency circuit of the antenna is arranged between the shielding cover (8) and the PCB assembly board (5), and the shielding layer and the shielding cover (8) of the radio frequency circuit are matched with the hollow-out position (4) of the PCB double-sided copper-clad assembly board (3).

3. The 5G-NR, WIFI-MIMO and GNSS high precision combined antenna according to claim 1 or 2, characterized in that the 5G-MIMO antenna is a dipole-like and slot-coupled antenna structure, the fillet ladder shape is arranged that the mounting positions at the inner sides of two fillets on the long side of the PCB double-sided copper-clad assembly board (3) are provided with a main 5G-MIMO antenna dielectric plate (10), and the mounting positions at the inner sides of two fillets on the short side are provided with a sub 5G-MIMO antenna dielectric plate (11); the main 5G-MIMO antenna dielectric plate (10) and the auxiliary 5G-MIMO antenna dielectric plate (11) are arranged in a PCB structure, the plane of the main 5G-MIMO antenna dielectric plate and the auxiliary 5G-MIMO antenna dielectric plate is perpendicular to the plane of the PCB double-sided copper-clad assembly plate (3), the upper ends of the main 5G-MIMO antenna dielectric plate (10) and the auxiliary 5G-MIMO antenna dielectric plate (11) are connected with an upper additional radiation branch (12), the inner sides of two round corners on the long edge of the PCB double-sided copper-clad assembly plate (3) are also provided with clamping positions (13), the clamping positions (13) are provided with a lower additional radiation branch (14), the lower additional radiation branch (14) is arranged at the lower side of the PCB double-sided copper-clad assembly plate (3), the position of the lower additional radiation branch (14) is matched with the position of the main 5G-MIMO antenna dielectric plate (10), and a coaxial cable (7) shielding layer is arranged in a radio frequency circuit of the 5G-MIMO antenna, and a missing area which penetrates through the outer side wall of the shielding cover (8) is welded with the PCB double-sided copper-clad general assembly board (3).

4. The 5G-NR, WIFI-MIMO and GNSS high precision combined antenna according to claim 3, wherein the WIFI-MIMO antenna (9) adopts a pifa structure and a pure metal air medium combined material, and is characterized in that the long side of the PCB double-sided copper-clad assembly board (3) is taken as the bottom side, and the short side of the PCB double-sided copper-clad assembly board (3) is taken as the top side; the WIFI-MIMO antenna (9) is respectively supported and arranged at the middle positions of the top edge and the bottom edge of the PCB double-sided copper-clad assembly plate (3) through a metal feed point of the WIFI-MIMO antenna, and an obvious height difference exists between the WIFI-MIMO antenna (9) and the 5G-MIMO antenna.

5. The 5G-NR, WIFI-MIMO and GNSS high precision combined antenna according to claim 4, wherein the auxiliary 5G-MIMO antenna dielectric plates (11) are arranged on two sides of the WIFI-MIMO antenna (9) arranged on the top edge of the PCB double-sided copper-clad assembly plate (3), and the main 5G-MIMO antenna dielectric plates (10) are arranged on two sides of the WIFI-MIMO antenna (9) arranged on the bottom edge of the PCB double-sided copper-clad assembly plate (3).

6. The 5G-NR, WIFI-MIMO and GNSS high precision combined antenna of claim 1 or 5, wherein the WIFI-MIMO antenna and the 5G-MIMO antenna are in multi-branch structure, and the length of each branch structure corresponds to a quarter wavelength of different frequency bands.