CN216413270U - Air dielectric combined antenna - Google Patents
Air dielectric combined antenna Download PDFInfo
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- CN216413270U CN216413270U CN202122535381.1U CN202122535381U CN216413270U CN 216413270 U CN216413270 U CN 216413270U CN 202122535381 U CN202122535381 U CN 202122535381U CN 216413270 U CN216413270 U CN 216413270U
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Abstract
The utility model relates to an air dielectric combined antenna which comprises a PCB (printed circuit board), a dielectric plate, a communication antenna assembly and a GNSS (global navigation satellite system) antenna assembly, wherein the communication antenna assembly and the GNSS antenna assembly are installed on the dielectric plate, a signal isolation body is arranged between the GNSS antenna assembly and the communication antenna assembly, the signal isolation body comprises a metal choking strip and a metal column, the metal choking strip is arranged on the dielectric plate, the metal choking strip is electrically connected with the PCB through the metal column, and the dielectric plate is connected with the PCB through the metal column. According to the utility model, the isolation between the communication antenna assembly and the GNSS antenna assembly can be improved by adopting the metal choking strip, electromagnetic waves radiated by the communication antenna are spatially filtered, and the floor current of the communication antenna is inhibited, so that the interference on the work of the GNSS antenna assembly can be reduced, and the metal column can play a role in electrically connecting the metal choking strip and the PCB on one hand, and can realize mechanical connection between the PCB and the dielectric plate on the other hand, so that a main body frame is formed.
Description
Technical Field
The utility model relates to an air dielectric combined antenna.
Background
The satellite terminal measurement type antenna is an antenna for measuring the carrier phase of a satellite navigation signal, and with the development of the communication technology of the internet of things and a GNSS satellite navigation positioning system, more new requirements are put forward on the measurement type antenna, so that the measurement type antenna is required to have the characteristics of stable phase center, high multipath effect resistance and low weight. Furthermore, GNSS navigation and high-precision positioning apparatuses are being developed toward multi-functionalization. The navigation positioning function is realized, and simultaneously, the functions of 4G, WIFI, Bluetooth, private network communication and the like are also realized. In order to realize the function, a plurality of antennas are generally required to be arranged, each antenna needs a corresponding dielectric plate, the dielectric plates are generally arranged in an upper-layer and lower-layer mode in an overlapping mode, the weight is higher, the antenna performance is easily influenced by the change of the dielectric constant and the dielectric loss tangent, and if foreign high-performance microwave plates are adopted, the cost is higher. In the prior art, a GNSS antenna and a communication antenna are integrated into a dielectric plate, for example, 4G and WIFI antennas are directly placed around the GNSS antenna, so that interference and coupling between the antennas cannot be considered in such a structure, the GNSS signal is particularly easily interfered, the positioning accuracy is reduced, and even a satellite is unlocked.
Disclosure of Invention
In order to overcome the defects that in the prior art, the antenna structure has heavy weight, interference and coupling between antennas cannot be considered, GNSS signals are particularly easily interfered, the positioning precision is reduced, and even the phenomenon of satellite lock losing occurs. The utility model provides an air-medium combined antenna, which comprises a PCB (printed circuit board), a dielectric plate, a communication antenna assembly and a GNSS (global navigation satellite system) antenna assembly, wherein the communication antenna assembly and the GNSS antenna assembly are installed on the dielectric plate, a signal isolator is arranged between the GNSS antenna assembly and the communication antenna assembly and comprises a metal choke strip and a metal column, the metal choke strip is arranged on the dielectric plate, and the metal choke strip is electrically connected with the PCB through the metal column.
Furthermore, the GNSS antenna assembly comprises a first circular copper-applying part, a second circular copper-applying part, an annular copper-applying part and a GNSS antenna feed probe, wherein the first circular copper-applying part and the annular copper-applying part are arranged on the upper surface of the dielectric plate, the second circular copper-applying part is arranged on the lower surface of the dielectric plate, the first circular copper-applying part is electrically connected with the PCB plate through the GNSS antenna feed probe, the first circular copper-applying part is electrically connected with the second circular copper-applying part through a first via hole metal body, the second circular copper-applying part is electrically connected with the annular copper-applying part through a second via hole metal body, the outer side of the annular copper-applying part is provided with a low-frequency-band tuning branch knot, and the inner side of the annular copper-applying part is provided with a high-frequency-band tuning branch knot.
Further, the communication antenna assembly has a plurality of communication antenna assemblies, wherein the plurality of communication antenna assemblies are distributed outside the circumference of the annular copper-clad portion.
Further, the communications antenna assembly includes a communications antenna electrically connected to the PCB board through a communications antenna feed probe and a ground probe.
Furthermore, there are a plurality of high-band tuning branches and a plurality of low-band tuning branches.
Furthermore, the number of the high-frequency tuning branches and the number of the low-frequency tuning branches are respectively 4, wherein the 4 high-frequency tuning branches and the 4 low-frequency tuning branches are uniformly distributed along the circumference of the annular copper-clad part.
Further, the metal column is made of copper, stainless steel or aluminum
The utility model has the beneficial effects that: compared with the prior art, the isolation between the communication antenna assembly and the GNSS antenna assembly can be improved by adopting the metal choking strip, electromagnetic waves radiated by the communication antenna are filtered spatially, floor current of the communication antenna is inhibited, interference on work of the GNSS antenna assembly can be further reduced, the metal column can play a role in electric connection between the metal choking strip and the PCB on one hand, and can also realize mechanical connection between the PCB and the dielectric plate on the other hand to form the main body frame.
Drawings
FIG. 1 is a block diagram of an air-dielectric combination antenna of the present invention;
fig. 2 is a structural view of a dielectric sheet of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are only a part of the examples of the present invention, and these examples are only for explaining the present invention and do not limit the scope of the present invention.
As shown in fig. 1 and 2, the present invention provides an air-medium combined antenna, which includes a PCB board 1, a dielectric board 2, a communication antenna component 3 and a GNSS antenna component 4, wherein the communication antenna component 3 and the GNSS antenna component 4 are mounted on the dielectric board 2, a signal isolator 5 is disposed between the GNSS antenna component 4 and the communication antenna component 3, the signal isolator 5 includes a metal choke strip 51 and a metal post 52, the metal choke strip 51 is disposed on the dielectric board 2, the metal choke strip 51 is electrically connected to the PCB board 1 through the metal post, the dielectric board 2 is connected to the PCB board 1 through the metal post 52, and preferably, the metal post 52 is made of copper, stainless steel, or aluminum.
In the utility model, the isolation between the communication antenna component 3 and the GNSS antenna component 4 can be improved by adopting the metal choking strip 51, electromagnetic waves radiated by the communication antenna are spatially filtered, and the floor current of the communication antenna is inhibited, so that the interference on the work of the GNSS antenna component can be reduced, and the metal column can play a role of electrically connecting the metal choking strip and a PCB on one hand, and can realize the mechanical connection between the PCB and a dielectric plate on the other hand to form a main body frame.
As a further scheme of the utility model: the GNSS antenna assembly 4 comprises a first circular copper coating part 41, a second circular copper coating part 42 and an annular copper coating part 43, the first circular copper coating part 41 and a GNSS antenna feed probe 44, the first circular copper coating part 41 and the annular copper coating part 43 are arranged on the upper surface of the dielectric plate 2, the second circular copper coating part 42 is arranged on the lower surface of the dielectric plate 2, the first circular copper coating part 41 is electrically connected with the PCB plate 1 through the GNSS antenna feed probe 44, the first circular copper coating part 41 is electrically connected with the second circular copper coating part 42 through a first via hole metal body 45, the second circular copper coating part 42 is electrically connected with the annular copper coating part 43 through a second via hole metal body 46, the outer side of the annular copper coating part 43 is provided with a low-frequency tuning branch 431, and the inner side of the annular copper coating part is provided with a high-frequency tuning branch 432. When the GNSS antenna assembly is adopted, the first circular copper-clad part, the second circular copper-clad part and the annular copper-clad part divide signals into two sections for processing, if the signals are high-frequency signals, the signals are transmitted to the high-frequency tuning branch knot through the GNSS antenna feed probe, the first circular copper-clad part, the first via hole metal body, the second circular copper-clad part, the second via hole metal body and the annular copper-clad part in sequence, and if the signals are low-frequency signals, the signals are transmitted to the low-frequency tuning branch knot through the GNSS antenna feed probe, the first circular copper-clad part, the first via hole metal body, the second circular copper-clad part, the second via hole metal body and the annular copper-clad part in sequence.
As a further scheme of the utility model: the communication antenna assembly 3 is provided in plurality, wherein the plurality of communication antenna assemblies 3 are uniformly distributed outside the circumference of the annular copper-clad portion 43. The communication antenna is arranged around the GNSS antenna and symmetrically arranged, and the whole structure is symmetrical, so that the phase center stability is facilitated.
As a further scheme of the utility model: the communication antenna assembly 3 comprises a communication antenna 31 and a communication antenna feed probe 32, wherein the communication antenna 31 is electrically connected with the PCB board 1 through the communication antenna feed probe 32 and a grounding probe 33.
As a further scheme of the utility model: the number of the high-frequency tuning branches 432 and the number of the low-frequency tuning branches 431 are multiple, preferably, the number of the high-frequency tuning branches 432 and the number of the low-frequency tuning branches 431 are 4 respectively, wherein the 4 high-frequency tuning branches and the 4 low-frequency tuning branches are uniformly distributed along the circumference of the annular copper-clad part.
Although the present invention has been described with reference to a preferred embodiment, 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 (7)
1. An air dielectric combination antenna, characterized by: including PCB board, dielectric plate, communication antenna subassembly and GNSS antenna subassembly are installed on the dielectric plate, be provided with the signal isolation body between GNSS antenna subassembly and the communication antenna subassembly, the signal isolation body includes metal choking strip and metal post, metal choking strip sets up on the dielectric plate, metal choking strip passes through metal post and PCB board electric connection, the dielectric plate with the PCB board passes through metal post and connects.
2. An air-dielectric combination antenna as claimed in claim 1, wherein: the GNSS antenna assembly comprises a first circular copper applying part, a second circular copper applying part, an annular copper applying part and a GNSS antenna feed probe, wherein the first circular copper applying part and the annular copper applying part are arranged on the upper surface of a dielectric plate, the second circular copper applying part is arranged on the lower surface of the dielectric plate, the first circular copper applying part is electrically connected with a PCB plate through the GNSS antenna feed probe, the first circular copper applying part is electrically connected with the second circular copper applying part through a first via hole metal body, the second circular copper applying part is electrically connected with the annular copper applying part through a second via hole metal body, and the outer side and the inner side of the annular copper applying part are provided with low-frequency-band tuning branches and high-frequency-band tuning branches.
3. An air-dielectric combination antenna as claimed in claim 2, wherein: the communication antenna assembly is plural, wherein the plural communication antenna assemblies are distributed outside the circumference of the annular copper-clad portion.
4. An air-dielectric combination antenna as claimed in any one of claims 1 to 3, wherein: the communications antenna assembly includes a communications antenna electrically connected to the PCB board through a communications antenna feed probe and a ground probe.
5. An air-dielectric combination antenna as claimed in claim 2, wherein: the high-frequency tuning branch and the low-frequency tuning branch are multiple.
6. An air-dielectric combination antenna as claimed in claim 5, wherein: the high-frequency tuning branch and the low-frequency tuning branch are respectively 4, wherein the 4 high-frequency tuning branches and the low-frequency tuning branches are uniformly distributed along the circumference of the annular copper-clad part.
7. An air-dielectric combination antenna as claimed in any one of claims 1 to 3, wherein: the metal column is made of copper, stainless steel or aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122535381.1U CN216413270U (en) | 2021-10-21 | 2021-10-21 | Air dielectric combined antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122535381.1U CN216413270U (en) | 2021-10-21 | 2021-10-21 | Air dielectric combined antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216413270U true CN216413270U (en) | 2022-04-29 |
Family
ID=81297804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122535381.1U Active CN216413270U (en) | 2021-10-21 | 2021-10-21 | Air dielectric combined antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216413270U (en) |
-
2021
- 2021-10-21 CN CN202122535381.1U patent/CN216413270U/en active Active
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