CN220856908U - Vehicle-mounted mobile communication antenna device - Google Patents
Vehicle-mounted mobile communication antenna device Download PDFInfo
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- CN220856908U CN220856908U CN202322708105.XU CN202322708105U CN220856908U CN 220856908 U CN220856908 U CN 220856908U CN 202322708105 U CN202322708105 U CN 202322708105U CN 220856908 U CN220856908 U CN 220856908U
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- 238000010295 mobile communication Methods 0.000 title claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000005476 soldering Methods 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
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Abstract
The utility model relates to a vehicle-mounted mobile communication antenna device, in particular to a mobile communication (TEL) vehicle-mounted antenna device integrated in an automobile. The antenna comprises a shell, a base, a 5G main antenna, a 5G auxiliary antenna, a 5G antenna MIMO I, a 5G antenna MIMO II, a laying auxiliary antenna, a PCB matching circuit board, a connector and a radio frequency coaxial line; the 5G main antenna, the 5G auxiliary antenna, the 5G antenna MIMO I, the 5G antenna MIMO II and the auxiliary spreading antenna are all arranged on the PCB matching circuit board; the PCB matching circuit board is respectively provided with a 5G main antenna, a 5G auxiliary antenna, a 5G antenna MIMO I, a 5G antenna MIMO II and a mounting matching groove of a spreading auxiliary antenna; the installation matching groove is respectively connected with the 5G main antenna, the 5G auxiliary antenna, the 5G antenna MIMO I, the 5G antenna MIMO II and the auxiliary spreading antenna in a soldering way, and the PCB matching circuit board is arranged on the base.
Description
Technical Field
The utility model relates to a vehicle-mounted mobile communication antenna device, in particular to a mobile communication (TEL) vehicle-mounted antenna device integrated in an automobile.
Background
At present, the 5G vehicle-mounted antenna is in a multi-purpose form of a built-in box antenna, the built-in type antenna is limited by the layout of mounting positions, the size of an antenna box body is small, the antenna performance is limited, and the isolation degree cannot meet the optimal requirement; the isolation is required to meet the optimal requirements.
Disclosure of utility model
The utility model aims at solving the limitation of the installation position in the prior art, and provides a vehicle-mounted mobile communication antenna device which is an internal box antenna and is an integrated vehicle-mounted antenna.
A vehicle-mounted mobile communication antenna device is realized by adopting the following technical scheme:
A vehicle-mounted mobile communication antenna device comprises a shell, a base, a 5G main antenna, a 5G auxiliary antenna, a 5G antenna MIMO I, a 5G antenna MIMO II, a spreading auxiliary antenna, a PCB matching circuit board, a connector and a radio frequency coaxial line;
The 5G main antenna, the 5G auxiliary antenna, the 5G antenna MIMO I, the 5G antenna MIMO II and the auxiliary spreading antenna are all metal oscillator antennas or PCB oscillator antennas.
The 5G main antenna, the 5G auxiliary antenna, the 5G antenna MIMO I, the 5G antenna MIMO II and the auxiliary spreading antenna are all arranged on the PCB matching circuit board.
And the PCB matching circuit board is respectively provided with a 5G main antenna, a 5G auxiliary antenna, a 5G antenna MIMO I, a 5G antenna MIMO II and an installation matching groove of the auxiliary spreading antenna. The installation matching groove is respectively connected with the 5G main antenna, the 5G auxiliary antenna, the 5G antenna MIMO I, the 5G antenna MIMO II and the auxiliary spreading antenna in a soldering way. The PCB matching circuit board is arranged on the base.
The base is provided with a single PCB (printed Circuit Board) or two or more PCB (printed Circuit Board) matching circuit boards, the base is provided with a matching circuit board installation positioning riveting column, the PCB matching circuit boards are installed on the installation column of the base, and the PCB matching circuit boards and the base are fixed on the base installation column in a heat riveting mode.
The base is also provided with a connector outlet, a slot hole for fixed connection and grafting is arranged at the outlet, and the connector outlet is led out through a slot hole guide through hole
The base is installed on the shell, and the base is also provided with a buckle installing column which is fixedly installed on the shell.
The connector is connected with the PCB matching circuit board and fixed on the PCB matching circuit board in a welding mode.
The connector is provided with 4 output terminals in total, namely a 5G main antenna, a 5G auxiliary antenna, a 5G antenna MIMO I and a 5G antenna MIMO II, and the 4 output terminals are combined and inserted into a connector shell.
The auxiliary antenna is used as decoupling branches of the first 5G antenna MIMO and the second 5G antenna MIMO, suppresses the spatial coupling of electromagnetic waves of the two antennas, and improves the isolation.
The radio frequency coaxial line adopts the radio frequency coaxial line with the diameter of 1.37mm to be connected with an antenna, and is used as the connection between the antenna and a connector, so that the loss is reduced, and the high-frequency efficiency is improved.
The shell is provided with an installation clamping groove, and the shell is fixedly installed on the base in a clamping manner through the installation clamping groove.
The outer side of the shell is provided with a fixed mounting structure hole which is matched with the vehicle body trim, and the fixed mounting structure hole is fixed by screws; the inner side of the shell is provided with a mounting groove which is used for being fixedly mounted with a clamping groove mounting column arranged on the base in a clamping way.
When the antenna of the vehicle-mounted mobile communication antenna device is used, the fixed structure hole is arranged on the shell and is arranged at the inner decoration part of the vehicle body, and the antenna is used for receiving mobile communication signals, and is connected with the terminal in the vehicle through the connector and the coaxial cable transmission line of the vehicle body, so that mobile communication is realized.
The vehicle-mounted mobile communication antenna device has the advantages that:
1. The antenna is integrated with a mobile communication function, and is designed in a diversified antenna form for meeting the performance requirement of a customer antenna, and the antenna is designed, constructed and arranged;
2. the 5G main and auxiliary antennas are respectively distributed at the edge positions of two ends of the PCB in a monopole antenna mode, the length of the PCB (group) is fully utilized, the length of the group of the antennas can reach the distance of 1/4 wavelength of low frequency (698-960 MHz), the distance between the two antennas is ensured to be more than 1/4 wavelength of the low frequency, and the isolation degree is satisfied to be more than 10 dB;
3. The low-frequency branch of the 5G main and auxiliary antenna adopts a large-area structure to adjust the low-frequency (698-960 MHz) impedance, thereby meeting the VSWR <3;
4. The orthogonal structure design is adopted between the 5G main antenna and the auxiliary antenna and the MIMO antenna, so that the isolation between the antennas is improved to more than 10 dB;
5. Decoupling branches are added between the MIMO antennas to spread auxiliary antennas, electromagnetic waves of the two antennas are restrained from being coupled in space, isolation is improved, and the isolation can reach more than 20 dB;
MIMO (Multiple-Input Multiple-Output) technology refers to using Multiple transmitting antennas and receiving antennas at a transmitting end and a receiving end, respectively, so that signals are transmitted and received through the Multiple antennas at the transmitting end and the receiving end, thereby improving communication quality;
6. because the main antenna and the auxiliary antenna are far away from the feeding position, the 5G high-frequency loss is high, and the antenna is connected by adopting a radio frequency coaxial line with the diameter of 1.37mm, compared with a CPW transmission line, the efficiency of high frequency is improved by about 10 percent.
Drawings
The utility model will be further described with reference to the accompanying drawings:
Fig. 1 is a top view showing the overall structure of an in-vehicle mobile communication antenna device;
Fig. 2 is a bottom external view of the overall structure of the vehicle-mounted mobile communication antenna device;
FIG. 3 is a schematic view of the overall structure of a vehicle-mounted mobile communication antenna device without a housing;
FIG. 4 is a data diagram 1 of the antenna gain of an in-vehicle mobile communication antenna device;
Fig. 5 is a data diagram 2 of the antenna gain of the vehicle-mounted mobile communication antenna device;
FIG. 6 is a data schematic diagram of an antenna standing wave ratio of an in-vehicle mobile communication antenna device;
Fig. 7 is a data diagram 1 of the antenna isolation of an in-vehicle mobile communication antenna device;
Fig. 8 is a data diagram 2 of the antenna isolation of the vehicle-mounted mobile communication antenna device.
In the figure: 1. the antenna comprises a shell, 2, a base, 3, 5G main antennas, 4, 5G auxiliary antennas, 5G antennas MIMO I (MIMO-1), 6, 5G antennas MIMO II (MIMO-2), 7, a PCB matching circuit board, 8 and a connector; 9. radio frequency coaxial line, 10, shop assistant antenna, 11, fixed mounting structure hole.
Detailed Description
Referring to fig. 1-8, a vehicle-mounted mobile communication antenna device comprises a shell 1, a base 2, a 5G main antenna 3, a 5G auxiliary antenna 4, a 5G antenna MIMO one 5, a 5G antenna MIMO two 6, a laying auxiliary antenna 10, a PCB matching circuit board 7, a connector 8 and a radio frequency coaxial line 9;
the 5G main antenna 3, the 5G auxiliary antenna 4, the 5G antenna MIMO I5, the 5G antenna MIMO II 6 and the auxiliary spreading antenna 10 are metal element antennas or PCB element antennas.
The 5G main antenna 3, the 5G auxiliary antenna 4, the 5G antenna MIMO I5, the 5G antenna MIMO II 6 and the auxiliary spreading antenna 10 are all arranged on the PCBA circuit board.
And the PCB matching circuit board 7 is respectively provided with a 5G main antenna 3, a 5G auxiliary antenna 4, a 5G antenna MIMO I5, a 5G antenna MIMO II 6 and an installation matching groove of the auxiliary spreading antenna 10. The installation matching grooves are respectively connected with the 5G main antenna 3, the 5G auxiliary antenna 4, the 5G antenna MIMO I5, the 5G antenna MIMO II 6 and the auxiliary antenna 10 in a soldering way. A PCB matching circuit board 7 is mounted on the base 2.
The base 2 is provided with a single PCB, or two or more PCB matching circuit boards, the base 2 is provided with a matching circuit board installation positioning riveting column, the PCB matching circuit boards are installed on the installation column of the base, and the matching circuit boards and the base 2 are fixed on the base installation column in a heat riveting mode.
The base 2 is also provided with a connector outlet, a slotted hole for fixing the connector 8 is arranged at the outlet, and the connector is led out through a slotted hole guide through hole
The base 2 is arranged on the shell 1, a buckle mounting column is further arranged on the base 2, and the base is fixedly arranged on the shell 1 through the buckle mounting column.
The connector 8 is connected with the PCB matching circuit board 7 and is fixed on the PCB matching circuit board 7 in a welding mode.
The connector 8 is provided with 4 output terminals in total of 4 output terminals of the 5G main antenna 3, the 5G auxiliary antenna 4, the 5G antenna MIMO I5 and the 5G antenna MIMO II 6, and the 4 output terminals are combined and inserted into a connector shell.
The auxiliary antenna 10 is used as decoupling branches of the 5G antenna MIMO one 5 and the 5G antenna MIMO two 6, suppresses the spatial coupling of electromagnetic waves of the two antennas, and improves the isolation.
The radio frequency coaxial line 9 adopts a radio frequency coaxial line with the diameter of 1.37mm to be connected with an antenna, and is used as the connection between the antenna and a connector, so that the loss is reduced, and the high-frequency efficiency is improved.
The shell 1 is provided with an installation clamping groove, and the shell is fixedly installed on the base 2 in a clamping manner through the installation clamping groove.
The outer side of the shell 1 is provided with a fixed mounting structure hole 11 which is matched with the vehicle body interior, and the shell is fixed by a screw; the inner side of the shell 1 is provided with a mounting groove which is used for being fixedly mounted with a clamping groove mounting column arranged on the base 2 in a clamping way.
When the vehicle-mounted mobile communication antenna device antenna is used, the fixed structure hole 11 is arranged on the shell 1 and is arranged at the inner decoration part of the vehicle body, and the fixed structure hole is used for receiving mobile communication signals, and is connected with the terminal in the vehicle through the connector 8 and the coaxial cable transmission line of the vehicle body, so that mobile communication is realized.
Claims (10)
1. The vehicle-mounted mobile communication antenna device is characterized by comprising a shell, a base, a 5G main antenna, a 5G auxiliary antenna, a 5G antenna MIMO I, a 5G antenna MIMO II, a spreading auxiliary antenna, a PCB (printed circuit board) matching circuit board, a connector and a radio frequency coaxial line;
the 5G main antenna, the 5G auxiliary antenna, the 5G antenna MIMO I, the 5G antenna MIMO II and the auxiliary spreading antenna are all metal oscillator antennas or PCB oscillator antennas;
The 5G main antenna, the 5G auxiliary antenna, the 5G antenna MIMO I, the 5G antenna MIMO II and the auxiliary spreading antenna are all arranged on the PCB matching circuit board;
The PCB matching circuit board is respectively provided with a 5G main antenna, a 5G auxiliary antenna, a 5G antenna MIMO I, a 5G antenna MIMO II and a mounting matching groove of a spreading auxiliary antenna; the installation matching groove is respectively connected with the 5G main antenna, the 5G auxiliary antenna, the 5G antenna MIMO I, the 5G antenna MIMO II and the auxiliary spreading antenna in a soldering way, and the PCB matching circuit board is arranged on the base.
2. The vehicle-mounted mobile communication antenna device according to claim 1, wherein a single or two or more PCB matching circuit boards are arranged on the base, a matching circuit board mounting positioning riveting column is arranged on the base, the PCB matching circuit boards are mounted on the mounting column of the base, and the PCB matching circuit boards and the base are fixed on the base mounting column in a heat riveting manner.
3. The vehicle-mounted mobile communication antenna device according to claim 1, wherein the base is further provided with a connector outlet, a slot hole for fixing the connector is arranged at the outlet, and the connector outlet is led out through the slot hole guiding through hole.
4. The vehicle-mounted mobile communication antenna device according to claim 1, wherein the base is mounted on the housing, and a buckle mounting post is further provided on the base, and is fixedly mounted on the housing through the buckle mounting post.
5. The vehicle-mounted mobile communication antenna device according to claim 1, wherein the connector is connected to the PCB matching circuit board and is fixed to the PCB matching circuit board by soldering.
6. The vehicle-mounted mobile communication antenna device according to claim 1, wherein the connector is provided with 4 output terminals in total of a 5G main antenna, a 5G auxiliary antenna, a 5G antenna MIMO one and a 5G antenna MIMO two, and the 4 output terminals are combined and inserted into one connector housing.
7. The vehicle-mounted mobile communication antenna device according to claim 1, wherein the auxiliary antenna is used as a decoupling branch of a first 5G antenna MIMO and a second 5G antenna MIMO, so as to inhibit the electromagnetic waves of the two antennas from being spatially coupled and improve the isolation.
8. The vehicle-mounted mobile communication antenna device according to claim 1, wherein the radio frequency coaxial line is a radio frequency coaxial line connection antenna with the diameter of 1.37mm, and the radio frequency coaxial line is used as a connection between the antenna and a connector, so that loss is reduced, and high-frequency efficiency is improved.
9. The vehicle-mounted mobile communication antenna device according to claim 1, wherein the housing is provided with a mounting slot, and the housing is fixedly mounted on the base by the mounting slot.
10. The vehicle-mounted mobile communication antenna device according to claim 1, wherein a fixed mounting structure hole is formed on the outer side of the housing, and is matched with the vehicle body interior, and is fixed by screw mounting; the inner side of the shell is provided with a mounting groove which is used for being fixedly mounted with a clamping groove mounting column arranged on the base in a clamping way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322708105.XU CN220856908U (en) | 2023-10-10 | 2023-10-10 | Vehicle-mounted mobile communication antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322708105.XU CN220856908U (en) | 2023-10-10 | 2023-10-10 | Vehicle-mounted mobile communication antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220856908U true CN220856908U (en) | 2024-04-26 |
Family
ID=90741030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322708105.XU Active CN220856908U (en) | 2023-10-10 | 2023-10-10 | Vehicle-mounted mobile communication antenna device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220856908U (en) |
-
2023
- 2023-10-10 CN CN202322708105.XU patent/CN220856908U/en active Active
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