CN220544233U - Small-volume integrated navigation antenna - Google Patents
Small-volume integrated navigation antenna Download PDFInfo
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- CN220544233U CN220544233U CN202322315570.7U CN202322315570U CN220544233U CN 220544233 U CN220544233 U CN 220544233U CN 202322315570 U CN202322315570 U CN 202322315570U CN 220544233 U CN220544233 U CN 220544233U
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- 238000003780 insertion Methods 0.000 description 2
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Abstract
The utility model discloses a small-volume integrated navigation antenna, which comprises a GPS antenna board, a BD antenna board and an amplifying circuit board which are sequentially stacked; the BD antenna board is provided with a BD antenna module for receiving BD signals; the GPS antenna board is provided with a GPS antenna module for receiving GPS signals; the amplifying circuit board is provided with a first amplifying circuit module electrically connected with the BD antenna module and a second amplifying circuit module electrically connected with the GPS antenna module; the first amplifying circuit module is used for receiving the BD signal transmitted by the BD antenna module and amplifying and filtering the BD signal; the second amplifying circuit module is used for receiving the GPS signals transmitted by the GPS antenna module and amplifying and filtering the GPS signals. The small-volume integrated navigation antenna adopts an integrated design of the antenna receiving part and the amplifying processing part, and has the effects of receiving and amplifying signals.
Description
Technical Field
The present utility model relates to a navigation antenna, and more particularly, to a small-sized integrated navigation antenna.
Background
Global satellite navigation systems (GNSS) have been widely used in daily life, and a single navigation system is difficult to meet the demands in terms of accuracy, safety, and reliability, so that the use of two or more multimode navigation systems has become a hot spot of recent researches, such as a GPS navigation system and a BD (beidou) navigation system.
The traditional navigation antenna only has the effect of receiving signals, and is electrically connected with a receiver on a carrier through a feeder line and a connecting device, the received signals are transmitted to the receiver through the feeder line and the connecting device, and the receiver amplifies and filters the signals.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to provide a small-size integrated navigation antenna, which adopts an integrated design of an antenna receiving part and an amplifying part, has the effects of receiving and amplifying signals and reduces the loss of antenna signals.
In order to achieve the above purpose, the utility model provides a small-volume integrated navigation antenna, which comprises a GPS antenna board, a BD antenna board and an amplifying circuit board which are sequentially stacked;
the BD antenna board is provided with a BD antenna module for receiving BD signals;
the GPS antenna board is provided with a GPS antenna module for receiving GPS signals;
the amplifying circuit board is provided with a first amplifying circuit module electrically connected with the BD antenna module and a second amplifying circuit module electrically connected with the GPS antenna module; the first amplifying circuit module is used for receiving the BD signal transmitted by the BD antenna module and amplifying and filtering the BD signal; the second amplifying circuit module is used for receiving the GPS signals transmitted by the GPS antenna module and amplifying and filtering the GPS signals.
In one or more embodiments, the first amplifying circuit module includes a first input end, a first output end, and a first bridge module, a first amplifying module, a first filtering module, and a first bias module sequentially connected between the first input end and the first output end, where the first input end is electrically connected with the BD antenna module;
the first bias module is used for feeding the first amplifying module and outputting radio frequency signals to the first output end.
In one or more embodiments, the BD antenna module is disposed on a side of the BD antenna board facing away from the amplifying circuit board; the first amplifying circuit module is arranged on one surface, facing away from the BD antenna board, of the amplifying circuit board;
the small-size integrated navigation antenna further comprises a first electric connecting piece, one end of the first electric connecting piece is electrically connected with the first input end, and the other end of the first electric connecting piece penetrates through the amplifying circuit board and the BD antenna board and is electrically connected with the BD antenna module.
In one or more embodiments, the small-volume integrated navigation antenna is provided with two first electrical connectors arranged at intervals, and the first amplifying circuit module comprises two first input ends.
In one or more embodiments, the second amplifying circuit module includes a second input end, a second output end, and a second bridge module, a second amplifying module, a second filtering module, and a second bias module sequentially connected between the second input end and the second output end, where the second input end is electrically connected with the GPS antenna module;
the second bias module is used for feeding the second amplifying module and outputting radio frequency signals to the second output end.
In one or more embodiments, the GPS antenna module is disposed on a side of the GPS antenna board facing away from the amplifying circuit board; the second amplifying circuit module is arranged on one surface of the amplifying circuit board, which is opposite to the GPS antenna board;
the small-size integrated navigation antenna further comprises a second electric connecting piece, one end of the second electric connecting piece is electrically connected with the second input end, and the other end of the second electric connecting piece penetrates through the amplifying circuit board, the BD antenna board and the GPS antenna board and is electrically connected with the GPS antenna module.
In one or more embodiments, the small-volume integrated navigation antenna is provided with two second electrical connectors arranged at intervals, and the second amplifying circuit module comprises two second input ends.
In one or more embodiments, the low-volume integrated navigation antenna further includes a housing having a receiving cavity for placing a GPS antenna board, a BD antenna board, and an amplification circuit board.
In one or more embodiments, the inner wall of the housing is provided with a convex rib, the amplifying circuit board, the inner wall of the housing and the convex rib are matched to form a first shielding cavity and a second shielding cavity, the first amplifying circuit module is located in the first shielding cavity, the second amplifying circuit module is located in the second shielding cavity, and the housing is made of metal.
In one or more embodiments, the BD antenna plate is bolted to the housing; the amplifying circuit board is connected with the shell through bolts.
Compared with the prior art, the small-size integrated navigation antenna provided by the utility model has the advantages that the GPS antenna board, the BD antenna board and the amplifying circuit board are stacked, so that the integration of the receiving part and the amplifying part of the antenna is realized, the distance from each antenna module to the amplifying module is reduced, the length of a feeder line or other connecting pieces between each antenna module and the amplifying module is reduced, and the effect of reducing insertion loss is realized. In addition, the small-volume integrated navigation antenna of the utility model stacks two antenna receiving parts, saves the antenna area and reduces the volume of the antenna structure.
Drawings
Fig. 1 is a schematic diagram showing connection of a GPS antenna board, a BD antenna board and an amplifying circuit board according to an embodiment of the present utility model;
fig. 2 is a bottom view of an amplifying circuit board according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a low-volume integrated navigational antenna configuration according to an embodiment of the utility model;
FIG. 4 is a bottom view of a low-volume integrated navigational antenna structure according to an embodiment of the utility model;
FIG. 5 is a cross-sectional view taken at C-C of FIG. 4;
FIG. 6 is a circuit diagram of a first amplification circuit module according to one embodiment of the present utility model;
fig. 7 is a circuit diagram of a second amplifying circuit module according to an embodiment of the present utility model;
FIG. 8 is a simulated gain pattern for a BD antenna module of a low-volume integrated navigation antenna in accordance with an embodiment of the present utility model;
FIG. 9 is a simulated axial ratio plot of a BD antenna module for a low-volume integrated navigation antenna in accordance with an embodiment of the present utility model;
FIG. 10 is a simulated gain pattern of a small-volume integrated navigational antenna GPS antenna module according to an embodiment of the utility model;
fig. 11 is a simulated axial ratio curve of a small-volume integrated navigation antenna GPS antenna module according to an embodiment of the present utility model.
The main reference numerals illustrate:
1. a GPS antenna board; 11. a BD antenna module; 2. BD antenna board; 21. a GPS antenna module; 3. an amplifying circuit board; 31. a first amplifying circuit module; 311. a first input; 312. a first bridge module; 313. a first amplifying module; 314. a first filtering module; 315. a first bias module; 316. a first output terminal; 32. a second amplifying circuit module; 321. a second input terminal; 322. a second bridge module; 323. a second amplification module; 324. a second filtering module; 325. a second bias module; 326. a second output terminal; 4. a housing; 41. a receiving chamber; 42. convex ribs; 43. a first shielding cavity; 44. a second shielding cavity; 45. an antenna housing.
Detailed Description
The following detailed description of embodiments of the utility model is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the utility model is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
As described in the background art, a conventional navigation antenna is generally an antenna receiving mechanism and a receiver that are separately disposed, and the antenna receiving mechanism and the receiver are separated by a certain distance and are respectively mounted on a carrier (for example, a flight carrier), and the antenna receiving mechanism and the receiver are electrically connected through a feeder line and a connector.
As shown in fig. 1, 2 and 5, the small-sized integrated navigation antenna according to an embodiment of the present utility model includes a GPS antenna board 1, a BD antenna board 2 and an amplifying circuit board 3, which are sequentially stacked.
Wherein, the BD antenna board 2 is provided with a BD antenna module 11 for receiving BD signals; the GPS antenna board 1 is provided with a GPS antenna module 21 for receiving GPS signals; the amplifying circuit board 3 is provided with a first amplifying circuit module 31 electrically connected to the BD antenna module 11 and a second amplifying circuit module 32 electrically connected to the GPS antenna module 21; the first amplifying circuit module 31 is configured to receive the BD signal transmitted by the BD antenna module 11, and perform an amplifying filtering process on the BD signal; the second amplifying circuit module 32 is configured to receive the GPS signal transmitted by the GPS antenna module 21, and amplify and filter the GPS signal.
It should be noted that, after receiving the BD signal, the BD antenna module 11 may transmit the BD signal to the first amplifying circuit module 31, where the first amplifying circuit module 31 may process the received BD signal, and the processing may include amplifying, filtering, etc., and may transmit the processed BD signal to an on-carrier receiver connected to the small-sized integrated navigation antenna of the present utility model, for example, a receiver on a flight carrier, a receiver on an automobile carrier, etc., so as to play a role in navigation. Similarly, the function of the GPS antenna module 21 and the second amplifying circuit module 32 is similar to that of the BD antenna module 11 and the first amplifying circuit. Therefore, the small-size integrated navigation antenna can support two navigation systems, namely a GPS navigation system and a BD navigation system.
It can be understood that, because the small-sized integrated navigation antenna is formed by stacking the GPS antenna board 1, the BD antenna board 2 and the amplifying circuit board 3, the receiving part and the amplifying part of the antenna are integrated, the distance between each antenna module and the amplifying module is reduced, and the length of a feeder line or other connecting pieces between each antenna module and the amplifying module is reduced, so that the effect of reducing insertion loss is achieved.
As shown in fig. 6, in one embodiment, the first amplifying circuit module 31 includes a first input terminal 311, a first output terminal 316, and a first bridge module 312, a first amplifying module 313, a first filtering module 314, and a first biasing module 315 sequentially connected between the first input terminal 311 and the first output terminal 316, where the first input terminal 311 is electrically connected to the BD antenna module 11; the first bias module 315 is configured to feed the first amplifying module 313 and is configured to output a radio frequency signal to the first output terminal 316.
It will be appreciated that the first output 316 is electrically connected to a receiver on the carrier. The first amplification module 313 plays a role in amplifying the BD signal; the first filtering module 314 functions to filter the BD signal.
In addition, the circuit diagram shown in fig. 6 is designed to be the same in one circuit by the power supply circuit and the radio frequency output circuit, and only one output port is needed finally, so that the number of feeder lines between the small-size integrated navigation antenna and the receiver is saved, the structure is simple, and the cost is reduced.
As shown in fig. 1, 2 and 5, in one embodiment, the BD antenna module 11 is disposed on a side of the BD antenna board 2 facing away from the amplifying circuit board 3; the first amplifying circuit module 31 is arranged on one surface of the amplifying circuit board 3, which is opposite to the BD antenna board 2; the small-sized integrated navigation antenna further includes a first electrical connector having one end electrically connected to the first input terminal 311 and the other end passing through the amplifying circuit board 3 and the BD antenna board 2 and electrically connected to the BD antenna module 11.
In particular, the first electrical connection may be a feeder line or an electrical connection post, which may be electrically connected to the BD antenna module 11 and the first amplifying circuit module 31 by soldering or other means. The BD antenna board 2 and the amplification circuit board 3 have holes through which the first electrical connectors pass.
Further, the small-volume integrated navigation antenna is provided with two first electrical connectors arranged at intervals, and the first amplifying circuit module 31 comprises two first input ends 311. That is, the first amplifying circuit module 31 is electrically connected to the BD antenna module 11 at a double-feed point, the first bridge module 312 is a 90-degree bridge, that is, the double-feed point is combined on the first amplifying circuit module 31 at 90 degrees, the first bridge module 312 can provide a 90-degree phase difference, and the two feed points are split and combined to form a circularly polarized wave, so as to form a low circularly polarized axial ratio (as shown in fig. 8 and 9).
As shown in fig. 7, in one embodiment, the second amplifying circuit module 32 includes a second input end 321, a second output end 326, and a second bridge module 322, a second amplifying module 323, a second filtering module 324, and a second biasing module 325 sequentially connected between the second input end 321 and the second output end 326, where the second input end 321 is electrically connected to the GPS antenna module 21; the second bias module 325 is configured to feed the second amplifying module 323 and to output a radio frequency signal to the second output terminal 326.
It will be appreciated that the second output 326 is electrically connected to a receiver on the carrier. The second amplifying module 323 is used for amplifying the GPS signal; the second filtering module 324 functions to filter the GPS signals.
In addition, the circuit diagram shown in fig. 7 is designed to be the same in one circuit by the power supply circuit and the radio frequency output circuit, and only one output port is needed finally, so that the number of feeder lines between the small-size integrated navigation antenna and the receiver is saved, the structure is simple, and the cost is reduced.
As shown in fig. 1, 2 and 5, in one embodiment, the GPS antenna module 21 is disposed on a side of the GPS antenna board 1 facing away from the amplifying circuit board 3; the second amplifying circuit module 32 is arranged on one surface of the amplifying circuit board 3, which is away from the GPS antenna board 1; the small-sized integrated navigation antenna further includes a second electrical connector, one end of which is electrically connected to the second input end 321, and the other end of which passes through the amplifying circuit board 3, the BD antenna board 2, and the GPS antenna board 1 and is electrically connected to the GPS antenna module 21.
In particular, the second electrical connection may be a feeder line or an electrical connection post, which may be electrically connected to the GPS antenna module 21 and the first amplifying circuit module 31 by soldering or other means. The GPS antenna board 1, BD antenna board 2, and amplifying circuit board 3 have holes through which the first electrical connectors pass.
Further, the small-volume integrated navigation antenna is provided with two second electrical connectors arranged at intervals, and the second amplifying circuit module 32 comprises two second input ends 321. The second amplifying circuit module 32 is electrically connected to the GPS antenna module 21 at a double-feed point, the second bridge module 322 is a 90-degree bridge, i.e. the double-feed point is combined on the first amplifying circuit module 31 at 90 degrees, the second bridge module 322 can provide a 90-degree phase difference, and the two feed points are split and combined to form a circularly polarized wave, so as to form a lower circularly polarized axial ratio (as shown in fig. 10 and 11).
As shown in fig. 1 and 5, the GPS antenna board 1 and the BD antenna board 2 are stacked, the GPS antenna board 1 is above, and the BD antenna board 2 is below, so that the GPS antenna module 21 and the BDG antenna module on the GPS antenna board are common in caliber, the doubly fed point feed can radiate circularly polarized waves, a good axial ratio is obtained, and the materials of the GPS antenna board 1 and the BD antenna board 2 can be all existing composite materials in the market.
As shown in fig. 3 and 4, in a specific embodiment, the integrated navigation antenna with small volume further includes a housing 4, and the housing 4 has a receiving cavity 41 for placing the GPS antenna board 1, the BD antenna board 2 and the amplifying circuit board 3.
Further, the inner wall of the housing 4 is provided with ribs 42, the amplifying circuit board 3, the inner wall of the housing 4 and the ribs 42 are matched to form a first shielding cavity 43 and a second shielding cavity 44, the first amplifying circuit module 31 is located in the first shielding cavity 43, the second amplifying circuit module 32 is located in the second shielding cavity 44, and the housing 4 is made of metal. The metal housing 4 and the ribs 42 can play a role of shielding the first shielding cavity 43 and the second shielding cavity 44.
Specifically, the housing 4 may be provided with two interfaces connected to the electrical connection of the receiver, one of which corresponds to the first amplifying circuit module 31 and the other corresponds to the second amplifying circuit module 32.
Specifically, the BD antenna plate 2 is in bolted connection with the housing 4; the amplifying circuit board 3 is connected with the shell 4 by bolts. The GPS antenna board 1 can be fixedly connected with the BD antenna board 2; the GPS antenna board 1 may also be fixedly connected to the amplifying circuit board 3, thereby realizing the fixed installation of each component and the housing. As shown in fig. 3 and 4, the housing 4 may be provided with holes for inserting bolts, and the BD antenna plate 2 and the amplifying circuit board 3 may be provided with screw holes screwed with the bolts, wherein the screw holes may be provided at the periphery of the edges of the BD antenna plate 2 and the amplifying circuit board 3.
The shell 4 can also comprise an antenna housing 45, and the antenna housing 45 can be made of PEEK material, so that the weight is light, and the wave transmission is good. Specifically, the radome 45 may be an arc-shaped radome 45 such that the housing 4 conforms to the carrier and provides protection for the BD antenna plate 2 and the GPS antenna plate 1 disposed within the housing 4.
The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (10)
1. The small-size integrated navigation antenna is characterized by comprising a GPS antenna board, a BD antenna board and an amplifying circuit board which are sequentially stacked;
the BD antenna board is provided with a BD antenna module for receiving BD signals;
the GPS antenna board is provided with a GPS antenna module for receiving GPS signals;
the amplifying circuit board is provided with a first amplifying circuit module electrically connected with the BD antenna module and a second amplifying circuit module electrically connected with the GPS antenna module; the first amplifying circuit module is used for receiving the BD signal transmitted by the BD antenna module and amplifying and filtering the BD signal; the second amplifying circuit module is used for receiving the GPS signals transmitted by the GPS antenna module and amplifying and filtering the GPS signals.
2. The integrated small-sized and small-sized antenna according to claim 1, wherein the first amplifying circuit module comprises a first input end, a first output end, and a first bridge module, a first amplifying module, a first filtering module and a first bias module which are sequentially connected between the first input end and the first output end, wherein the first input end is electrically connected with the BD antenna module;
the first bias module is used for outputting radio frequency signals to the first amplifying module and the first output end.
3. The small-volume integrated navigation antenna of claim 2, wherein the BD antenna module is disposed on a side of the BD antenna board facing away from the amplifying circuit board; the first amplifying circuit module is arranged on one surface, facing away from the BD antenna board, of the amplifying circuit board;
the small-size integrated navigation antenna further comprises a first electric connecting piece, one end of the first electric connecting piece is electrically connected with the first input end, and the other end of the first electric connecting piece penetrates through the amplifying circuit board and the BD antenna board and is electrically connected with the BD antenna module.
4. A low profile integrated navigational antenna according to claim 3, wherein said low profile integrated navigational antenna is provided with two said first electrical connections arranged at intervals, said first amplifying circuit module comprising two said first inputs.
5. The integrated small-sized and small-sized antenna according to claim 1, wherein the second amplifying circuit module comprises a second input end, a second output end, and a second bridge module, a second amplifying module, a second filtering module and a second bias module which are sequentially connected between the second input end and the second output end, wherein the second input end is electrically connected with the GPS antenna module;
the second bias module is used for outputting radio frequency signals to the second amplifying module and the second output end.
6. The integrated navigation antenna of claim 5, wherein the GPS antenna module is disposed on a side of the GPS antenna board facing away from the amplification circuit board; the second amplifying circuit module is arranged on one surface of the amplifying circuit board, which is opposite to the GPS antenna board;
the small-size integrated navigation antenna further comprises a second electric connecting piece, one end of the second electric connecting piece is electrically connected with the second input end, and the other end of the second electric connecting piece penetrates through the amplifying circuit board, the BD antenna board and the GPS antenna board and is electrically connected with the GPS antenna module.
7. The integrated small-volume navigation antenna of claim 6, wherein the integrated small-volume navigation antenna is provided with two second electrical connectors arranged at intervals, and the second amplifying circuit module comprises two second input ends.
8. The low-profile integrated navigation antenna of claim 1, further comprising a housing having a receiving cavity for the GPS antenna board, BD antenna board, and amplification circuit board.
9. The integrated small-sized and navigation antenna according to claim 8, wherein the protruding ribs are arranged on the inner wall of the housing, the amplifying circuit board, the inner wall of the housing and the protruding ribs are combined to form a first shielding cavity and a second shielding cavity, the first amplifying circuit module is located in the first shielding cavity, the second amplifying circuit module is located in the second shielding cavity, and the housing is made of metal.
10. The low-profile integrated navigation antenna of claim 8, wherein the BD antenna plate is bolted to the housing; the amplifying circuit board is connected with the shell through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322315570.7U CN220544233U (en) | 2023-08-28 | 2023-08-28 | Small-volume integrated navigation antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322315570.7U CN220544233U (en) | 2023-08-28 | 2023-08-28 | Small-volume integrated navigation antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220544233U true CN220544233U (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322315570.7U Active CN220544233U (en) | 2023-08-28 | 2023-08-28 | Small-volume integrated navigation antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220544233U (en) |
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2023
- 2023-08-28 CN CN202322315570.7U patent/CN220544233U/en active Active
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