CN212571359U - Single-port GNSS combined antenna - Google Patents
Single-port GNSS combined antenna Download PDFInfo
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- CN212571359U CN212571359U CN202021597985.8U CN202021597985U CN212571359U CN 212571359 U CN212571359 U CN 212571359U CN 202021597985 U CN202021597985 U CN 202021597985U CN 212571359 U CN212571359 U CN 212571359U
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Abstract
The utility model belongs to the technical field of antennas, a single-port GNSS combined antenna is disclosed, a PCB board is fixed in an antenna shell, and a multi-frequency combiner unit, a GNSS radio frequency circuit unit, a GNSS antenna unit and a communication antenna unit are integrated on the PCB board; and a signal transmission device is fixed at the lower end of the antenna shell and is connected with the combining unit. The GNSS antenna unit is connected with the GNSS radio frequency circuit unit, the GNSS radio frequency circuit unit is connected with the multi-frequency combining unit, and the multi-frequency combining unit is connected with the GNSS radio frequency circuit unit, the communication antenna unit and the signal transmission device. The utility model integrates the GNSS antenna and the communication antenna, reduces the number of the antennas of the whole device under the condition of not reducing the performance of the antennas, and greatly reduces the installation size and weight; meanwhile, a plurality of network signals are combined into one path, so that the number of signal transmission lines is reduced, the system cost is reduced, and the like.
Description
Technical Field
The utility model belongs to the technical field of the antenna, especially, relate to a single port GNSS combined antenna.
Background
Currently, GNSS systems include Global Positioning System (GPS) in the united states, Global Navigation Satellite System (Glonass) in russia, Galileo Satellite Navigation System (Galileo) in europe, and beidou Satellite Navigation System in china, and are widely applied to various Navigation terminals, and with the feasibility of high-precision Positioning, GNSS systems play more and more important roles in military and special civil fields.
Besides the GNSS high-precision antenna, various wireless communication antennas may be provided in various system applications or products to meet the requirements of system intellectualization, such as a WIFI antenna, a BT antenna, a 4G/5G antenna, a data transmission/image transmission station antenna, and the like. And the number of the antennas may be more than one, such as dual (multi) 4G applications, dual WIFI applications, dual GNSS antenna positioning and orientation applications, and the like. When the system is more complex, the larger the number of antennas, the larger the volume, which brings difficulty to the miniaturization and portability of the device, and it is very important to integrate a plurality of network antennas. However, because the number of antenna units is large, the installation and reliability need to be considered when designing a system product, and the size of the product is often made larger, which increases the weight of the product. Due to the fact that the number of the antenna units is large, the cost of the antenna units, the system integration design cost and the operation cost are difficult to reduce. Meanwhile, when a system integration manufacturer performs system integration, installation compatibility needs to be considered among antennas of different networks, and unreasonable installation design may affect the performance and reliability of each unit, such as the receiving of radio station antenna radiation signal interference WIFI.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) because the number of antenna units is large, installation and reliability need to be considered during system product design, the product size is often made larger, and the weight of the product is increased.
(2) Due to the fact that the number of the antenna units is large, the cost of the antenna units, the system integration design cost and the operation cost are difficult to reduce.
(3) When a system integration manufacturer performs system integration, installation compatibility needs to be considered among antennas of different networks, and unreasonable installation design may affect performance and reliability of each unit, such as receiving of radio station antenna radiation signals interfering WIFI.
The difficulty in solving the above problems and defects is: after the multi-network antenna is integrated, the distance between the antennas is very close, the mutual influence is large, and the design is needed to ensure the minimum performance influence among the antennas, such as antenna gain, directivity, polarization and the like. After the antenna is integrated, signals are transmitted through a cable (or a radio frequency connector), and the problem of combining among different networks needs to be considered;
the significance of solving the problems and the defects is as follows: the utility model discloses with communication network antenna (like WIFI) and GNSS antenna integration, reduced antenna unit quantity, reduced system's integrated size, weight, cost. The communication network antenna (such as WIFI) and the GNSS antenna are integrated, so that uncertainty caused by system integration, such as communication performance difference caused by different installation positions of the WIFI antenna and the GNSS antenna, is avoided. After the multiple antennas are integrated, the distance between the antennas is very close, and the utility model ensures that the performance of each antenna has the lowest mutual influence, such as antenna gain, directivity, polarization, and the like; after the antenna is integrated, the signal is transmitted through a cable (or a radio frequency connector) so as to further reduce the cost, the utility model provides a close way problem between different networks.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model provides a single port GNSS combined antenna.
The utility model discloses a single port GNSS combined antenna, which is provided with an antenna shell; the antenna shell is internally fixed with a PCB board, a multi-frequency combining unit, a GNSS radio frequency circuit unit, a GNSS antenna unit and a communication antenna unit are integrated on the PCB board, and a signal transmission device is connected with the multi-frequency combining unit.
Furthermore, the GNSS antenna unit is connected with the GNSS radio frequency circuit unit, and the multi-frequency combining unit is connected with the GNSS radio frequency circuit unit, the communication antenna unit and the signal transmission device.
Further, the signal transmission device is a radio frequency cable.
Further, the signal transmission device is a connector.
Further, the multi-frequency combining unit is provided with a first port, a second port and a combining port.
Furthermore, the first port is connected with the GNSS radio frequency circuit unit, the second port is connected with the communication antenna unit, and the combining port is connected with the signal transmission device.
Further, the GNSS antenna unit and the radio frequency circuit unit have a filter network that suppresses signals of the communication antenna unit.
Furthermore, the loss from the port of the GNSS radio frequency circuit unit to the combining port is greater than or equal to the loss from the port of the communication antenna unit to the combining port.
Combine foretell all technical scheme, the utility model discloses the advantage that possesses and positive effect are:
first, the utility model discloses well combination unit and GNSS antenna element, communication antenna unit, GNSS radio frequency circuit unit are all integrated on a PCB, have reduced the combination loss, have improved transmission stability. The combining unit can be realized by a PCB circuit or an electronic component so as to reduce the size of the combining. The GNSS radio frequency circuit unit also has a filter network for inhibiting signals of the communication antenna unit, so that the stability of the system is further ensured.
Simultaneously the utility model discloses with communication network antenna (like WIFI) and GNSS antenna integration, reduced antenna unit quantity, reduced system's integrated size, weight, cost. The communication network antenna (such as WIFI) and the GNSS antenna are integrated, so that uncertainty caused by system integration, such as communication performance difference caused by different installation positions of the WIFI antenna and the GNSS antenna, is avoided. After the multiple antennas are integrated, the distance between the antennas is very close, and the utility model ensures that the performance of each antenna has the lowest mutual influence, such as antenna gain, directivity, polarization, and the like; after the antenna is integrated, the signal is transmitted through a cable (or a radio frequency connector) so as to further reduce the cost, the utility model provides a close way problem between different networks.
Second, the utility model discloses well GNSS antenna's frequency response characteristic need present the high resistance state in communication antenna working frequency band department, opposite communication antenna's frequency response characteristic also need present the high resistance state in GNSS antenna working frequency band department, and the maximize reduces the influence between the antenna. After signals received by the GNSS antenna unit are subjected to signal filtering, amplification and other processing by the GNSS radio frequency circuit unit, the signals are combined with the communication antenna unit by the combining unit for transmission.
Third, the utility model discloses well GNSS antenna signal and communication antenna unit's radio frequency signal and power are all through a radio frequency line transmission, further the cost is reduced.
Fourth, the utility model discloses well GNSS antenna signal and communication antenna unit's radio frequency signal and power all pass through the transmission of radio frequency connector, further the cost is reduced.
Fifth, the utility model discloses well multifrequency closes the port that the unit connects GNSS radio frequency circuit unit to the loss that closes the way port can more than or equal to connect the port of communication antenna unit to the loss that closes the way port.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic diagram of a single-port GNSS combined antenna according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of a single-port GNSS combined antenna according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a multi-frequency combining unit structure provided by the embodiment of the present invention.
Fig. 4 is a schematic view of a connection structure of a multi-frequency combining unit provided in an embodiment of the present invention.
In the figure: 1. a signal transmission device; 2. a multi-frequency combining unit; 3. a PCB board; 4. a GNSS radio frequency circuit unit; 5. a GNSS antenna unit; 6. an antenna housing; 7. a communication antenna unit; 8. a first port; 9. a second port; 10. and a combining port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
To the problem that prior art exists, the utility model provides a single port GNSS combined antenna, it is right below to combine the figure the utility model discloses do detailed description.
As shown in fig. 1-2, the PCB 3 is fixed inside the antenna housing 6 of the single-port GNSS combined antenna provided by the present invention, and the multi-frequency combining unit 2, the GNSS radio frequency circuit unit 4, the GNSS antenna unit 5 and the communication antenna unit 7 are integrated on the PCB 3; the lower end of the antenna shell 6 is provided with a signal transmission device 1, and the signal transmission device 1 is connected with the multi-frequency combiner unit 2. The signal transmission device 1 may be a radio frequency cable or a connector; the multi-frequency combining unit 2, the GNSS antenna unit 5, the communication antenna unit 7 and the GNSS radio frequency circuit unit 4 are integrated on one PCB 3, so that the combining loss is reduced, and the transmission stability is improved.
The GNSS antenna unit 5 is connected with the GNSS radio frequency circuit unit 4, the GNSS radio frequency circuit unit 4 is connected with the multi-frequency combining unit 2, and the multi-frequency combining unit 2 is connected with the GNSS radio frequency circuit unit 4, the communication antenna unit 7 and the signal transmission device 1. After signals received by the GNSS antenna unit 5 are subjected to signal filtering, amplification and other processing by the GNSS radio frequency circuit unit 4, the signals are combined and transmitted with the communication antenna unit 7 by the combining unit 2; meanwhile, the GNSS radio frequency circuit unit 4 and the GNSS antenna unit 5 also have a filter network for suppressing signals of the communication antenna unit, so as to further ensure the stability of the system.
In order to maximally reduce the influence between the antennas, the frequency response of the GNSS antenna 5 needs to exhibit a high impedance state at the operating frequency band of the communication antenna 7, and conversely the frequency response of the communication antenna 7 needs to exhibit a high impedance state at the operating frequency band of the GNSS antenna 5. The communication antenna unit 7 is connected with the radio frequency line 1 (radio frequency connector), and the GNSS antenna signal, the radio frequency signal of the communication antenna unit 7 and the power supply are transmitted through one radio frequency line 1 (radio frequency connector) to further reduce the cost.
As shown in fig. 3, the multi-frequency combining unit 2 provided in the embodiment of the present invention is provided with a first port 8, a second port 9 and a combining port 10; in the utility model, a first port 8 is connected with a GNSS radio frequency circuit unit 4, a second port 9 is connected with a communication antenna unit 7, and a combining port 10 is connected with a signal transmission device 1; the loss of the first port 8 to the combined port 10 may be equal to or greater than the loss of the second port 9 to the combined port 10.
The utility model discloses a theory of operation does: after signals received by the GNSS antenna unit 5 are subjected to signal filtering, amplification and other processing by the GNSS radio frequency circuit unit 4, the signals are combined and transmitted with the communication antenna unit 7 by the multi-frequency combining unit 2. The GNSS antenna signals and the radio frequency signals of the communication antenna unit 7 and the power are transmitted through one radio frequency line 1. The utility model discloses with GNSS antenna and communication antenna (like WIFI or BT, 3G 4G 5G etc.) integration, under the condition that does not reduce the antenna performance, reduced the quantity of whole quick-witted (like unmanned aerial vehicle, unmanned car) antenna, reduced mounting dimension and weight by a wide margin. By combining a plurality of network signals into one path, the number of signal transmission lines is reduced, and the system cost is reduced.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.
Claims (8)
1. A single-port GNSS combined antenna, characterized in that it is provided with:
an antenna housing;
the antenna shell is internally fixed with a PCB board, a multi-frequency combining unit, a GNSS radio frequency circuit unit, a GNSS antenna unit and a communication antenna unit are integrated on the PCB board, and a signal transmission device is connected with the multi-frequency combining unit.
2. The single-port GNSS combined antenna of claim 1, wherein the GNSS antenna unit is connected to a GNSS radio-frequency circuit unit, and the multi-frequency combining unit is connected to the GNSS radio-frequency circuit unit, the communication antenna unit, and the signal transmission device.
3. The single-port GNSS combined antenna of claim 1, wherein the signal transmission means is a radio frequency cable.
4. The single-port GNSS combined antenna of claim 1, wherein the signal transmission means is a connector.
5. The single-port GNSS combined antenna of claim 1, wherein the multi-frequency combining unit is provided with a first port, a second port and a combining port.
6. The single-port GNSS combined antenna of claim 5, wherein the first port is connected to a GNSS radio frequency circuit unit, the second port is connected to a communication antenna unit, and the combining port is connected to a signal transmission device.
7. The single-port GNSS combined antenna of claim 1 wherein the GNSS antenna unit and the radio frequency circuit unit are provided with a filter network for communicating antenna unit signals.
8. The single-port GNSS combined antenna of claim 1 wherein a loss from a first port to a combining port of the combining unit is equal to or greater than a loss from a second port to the combining port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021597985.8U CN212571359U (en) | 2020-08-03 | 2020-08-03 | Single-port GNSS combined antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021597985.8U CN212571359U (en) | 2020-08-03 | 2020-08-03 | Single-port GNSS combined antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212571359U true CN212571359U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021597985.8U Active CN212571359U (en) | 2020-08-03 | 2020-08-03 | Single-port GNSS combined antenna |
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| CN (1) | CN212571359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022225412A1 (en) * | 2021-04-23 | 2022-10-27 | Limited Liability Company "Topcon Positioning Systems" | Compact combined cellular/gnss antenna with low mutual coupling |
-
2020
- 2020-08-03 CN CN202021597985.8U patent/CN212571359U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022225412A1 (en) * | 2021-04-23 | 2022-10-27 | Limited Liability Company "Topcon Positioning Systems" | Compact combined cellular/gnss antenna with low mutual coupling |
| US11909109B2 (en) | 2021-04-23 | 2024-02-20 | Topcon Positioning Systems, Inc. | Compact combined cellular/GNSS antenna with low mutual coupling |
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