A circuit device for sharing an antenna for GPS and private network narrowband communication

Abstract

This invention provides a circuit device for sharing an antenna for GPS and private network narrowband communication, including a main component. The main component includes a base and a housing. The housing is fixedly connected to the top of the base by bolts. A communication component is housed inside the main component, including an antenna module, a filtering module, a power supply module, and a data transmission module. The antenna module, filtering module, power supply module, and data transmission module are mounted on the upper surface of the base. This invention constructs a dual-band signal channel within the communication component and uses a filtering chip to achieve signal splitting, ensuring that positioning signals and communication data can be transmitted synchronously without interference. By using conformal antenna technology, the dual-band radiating elements are integrated into the same structural component, reducing hardware costs and making it suitable for scenarios sensitive to size and cost, such as drones and vehicle terminals.

Description

Technical Field

[0001] This utility model relates to a circuit device, and more particularly to a circuit device for sharing an antenna for GPS and private network narrowband communication, belonging to the field of communication equipment technology. Background Technology

[0002] GPS (Global Positioning System) is widely used in military navigation, vehicle and ship positioning, and geodesy due to its advantages such as all-weather operation, high precision, and ease of operation. Private narrowband communication, on the other hand, is a professional wireless communication network designed for specific industries such as government affairs and public safety. With high reliability, strong confidentiality, and low latency as its core characteristics, it plays a crucial role in emergency rescue and command and dispatch scenarios, such as providing real-time communication support for public security and fire departments during missions. It is an indispensable communication tool in these special fields.

[0003] Currently, GPS and private network narrowband communication each require independent antennas, which means a significant increase in equipment size. In scenarios where space is extremely sensitive, such as drones and wearable devices, excessive space occupation severely restricts the integration of device functions and miniaturization. At the same time, the procurement, installation, and debugging costs of the two sets of antennas are superimposed, greatly increasing project investment. In addition, electromagnetic interference can easily occur between multiple sets of antennas, affecting signal reception quality. Therefore, a circuit device for sharing an antenna for GPS and private network narrowband communication is proposed. Utility Model Content

[0004] In view of this, the present invention provides a circuit device for sharing an antenna for GPS and private network narrowband communication, so as to solve or alleviate one of the technical problems existing in the prior art, and at least provide a beneficial option.

[0005] The technical solution of this utility model embodiment is implemented as follows: a circuit device for sharing an antenna for GPS and private network narrowband communication includes a main component, the main component including a base and a housing; the top of the base is fixedly connected to the housing by bolts;

[0006] The main component has a communication component inside, which includes an antenna module, a filter module, a power supply module, and a data transmission module. The upper surface of the base is equipped with the antenna module, filter module, power supply module, and data transmission module. The antenna module 21 adopts a conformal antenna structure and receives dual-system signals through a single physical antenna. After the signal is received by the antenna module 21, it is transmitted to the filter module 22 through a coaxial cable and enters the parallel splitting processing link. The two signals are transmitted through the data transmission module 24. The GPS signal link is sent to the GPS receiver chip, and the private network narrowband signal link is sent to the private network communication module.

[0007] A further preferred embodiment: the filtering module includes a GPS filtering circuit and a private network filtering circuit.

[0008] A further preferred embodiment: the signal output terminal of the antenna module is connected to the signal input terminal of the filter module, and the signal output terminal of the filter module is connected to the signal input terminal of the data transmission module.

[0009] A further preferred embodiment: a heat sink is fixedly connected to the top of the base, and the upper surface of the heat sink is provided with through holes evenly distributed.

[0010] A further preferred embodiment: a threaded post is fixedly connected to the bottom of the base, and a threaded sleeve is threadedly connected to the outer wall of the threaded post.

[0011] A further preferred embodiment: the bottom of the threaded sleeve is fixedly connected to a support plate.

[0012] A further preferred embodiment: the outer side wall of the support plate is symmetrically fixedly connected with a fixing plate, and the upper surface of the fixing plate is provided with mounting holes.

[0013] A further preferred embodiment: a connector is installed at the bottom of the threaded post, and a cable is fixedly connected to the bottom of the connector.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] I. This utility model constructs a dual-band signal channel within the communication component and uses a filter chip to achieve signal splitting transmission, ensuring that positioning signals and communication data can be transmitted synchronously without interference.

[0016] Second, this utility model integrates dual-band radiating elements into the same structural component through conformal antenna technology, reducing hardware costs and making it suitable for scenarios that are sensitive to size and cost, such as drones and vehicle terminals.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the present invention;

[0020] Figure 2 This is a diagram showing the internal structure of the shell of this utility model;

[0021] Figure 3 This is a front view of the present invention.

[0022] Figure 4 This is a bottom view of the structure of this utility model.

[0023] Reference numerals: 10. Main component; 11. Base; 12. Housing; 13. Heat sink; 14. Through hole; 15. Threaded post; 16. Threaded sleeve; 17. Support plate; 18. Fixing plate; 19. Mounting hole; 110. Connector; 111. Cable; 20. Communication component; 21. Antenna module; 22. Filtering module; 23. Power supply module; 24. Data transmission module. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-4 As shown, this utility model embodiment provides a circuit device for sharing an antenna for GPS and private network narrowband communication, including a main component 10, which includes a base 11 and a housing 12; the top of the base 11 is fixedly connected to the housing 12 by bolts.

[0027] The main component 10 internally houses a communication component 20, which includes an antenna module 21, a filter module 22, a power supply module 23, and a data transmission module 24. The antenna module 21, filter module 22, power supply module 23, and data transmission module 24 are mounted on the upper surface of the base 11. The antenna module 21 adopts a conformal antenna structure, integrating a composite radiating unit of GPS frequency bands (L1: 1575.42MHz, L2: 1227.60MHz) and private network narrowband frequency bands (such as the 350MHz police frequency band and the 400-470MHz general frequency band). It receives dual-system signals through a single physical antenna. After being received by the antenna module 21, the signals are transmitted to the filter module 22 via a coaxial cable, entering a parallel split-processing link. The GPS filtering circuit uses a bandpass filter to extract GPS signals. The L1 / L2 band signals are filtered to remove interference from other bands. The private network filtering circuit uses a narrowband bandpass filter to separate the private network narrowband band signals and suppress GPS band and other spurious interference. The two signals are transmitted through the data transmission module 24. The GPS signal link is sent to the GPS receiver chip, and the private network narrowband signal link is sent to the private network communication module.

[0028] In this embodiment, specifically: the filtering module 22 includes a GPS filtering circuit and a dedicated network filtering circuit, which are used to process GPS signals and dedicated narrowband signals, respectively.

[0029] In this embodiment, specifically: the signal output terminal of the antenna module 21 is connected to the signal input terminal of the filter module 22, the signal output terminal of the filter module 22 is connected to the signal input terminal of the data transmission module 24, and the signal is transmitted from the antenna module 21 to the filter module 22, and then transmitted to the data transmission module 24 after being split.

[0030] In this embodiment, specifically: a heat sink 13 is fixedly connected to the top of the base 11, and through holes 14 are evenly opened on the upper surface of the heat sink 13. The through holes 14 are used for air exchange between the inside and outside of the communication device, thereby reducing the internal ambient temperature of the communication device when it is working.

[0031] In this embodiment, specifically: a threaded post 15 is fixedly connected to the bottom of the base 11, and a threaded sleeve 16 is threadedly connected to the outer wall of the threaded post 15. The threaded post 15 and the threaded sleeve 16 are fixed together by threaded engagement, which facilitates the disassembly and installation of communication equipment by the staff.

[0032] In this embodiment, specifically: a support plate 17 is fixedly connected to the bottom of the threaded sleeve 16, and the support plate 17 is fixed on the support surface to ensure the stability of the communication equipment.

[0033] In this embodiment, specifically: a fixing plate 18 is symmetrically fixedly connected to the outer side wall of the support plate 17, and a mounting hole 19 is provided on the upper surface of the fixing plate 18, which facilitates fixing the fixing plate 18 with bolts.

[0034] In this embodiment, specifically: a connector 110 is installed at the bottom of the threaded post 15, and a cable 111 is fixedly connected to the bottom of the connector 110. The cable 111 is used to transmit signal data, and one end of the cable 111 is connected to the GPS receiver chip and the private network communication module respectively.

[0035] In operation, the antenna module 21 adopts a conformal antenna structure, integrating a composite radiating unit of GPS frequency band (L1: 1575.42MHz, L2: 1227.60MHz) and private network narrowband frequency band (such as 350MHz police frequency band, 400-470MHz general frequency band). It receives dual-system signals through a single physical antenna. After the signal is received by the antenna module 21, it is transmitted to the filter module 22 through a coaxial cable and enters the parallel split processing link. The GPS filter circuit uses a bandpass filter to extract the GPS L1 / L2 frequency band signal and filter out interference from other frequency bands. The private network filter circuit uses a narrowband bandpass filter to separate the private network narrowband frequency band signal and suppress GPS frequency band and other spurious interference. The two signals are transmitted through the data transmission module 24. The GPS signal link is sent to the GPS receiver chip, and the private network narrowband signal link is sent to the private network communication module. Compared with the traditional dual-antenna solution, it saves installation space and is suitable for compact scenarios such as drones and vehicle terminals. It eliminates a set of antennas and supporting RF cables, reducing hardware costs.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A circuit device for sharing an antenna for GPS and private network narrowband communication, comprising a main component (10), characterized in that: The main component (10) includes a base (11) and a housing (12); the top of the base (11) is fixedly connected to the housing (12) by bolts; The main body component (10) is equipped with a communication component (20), which includes an antenna module (21), a filter module (22), a power supply module (23), and a data transmission module (24); the antenna module (21), the filter module (22), the power supply module (23), and the data transmission module (24) are installed on the upper surface of the base (11).

2. The circuit device for sharing an antenna for GPS and private network narrowband communication according to claim 1, characterized in that: The filtering module (22) includes a GPS filtering circuit and a private network filtering circuit.

3. The circuit device for sharing an antenna for GPS and private network narrowband communication according to claim 1, characterized in that: The signal output terminal of the antenna module (21) is connected to the signal input terminal of the filter module (22), and the signal output terminal of the filter module (22) is connected to the signal input terminal of the data transmission module (24).

4. The circuit device for sharing an antenna for GPS and private network narrowband communication according to claim 1, characterized in that: A heat sink plate (13) is fixedly connected to the top of the base (11), and through holes (14) are evenly opened on the upper surface of the heat sink plate (13).

5. The circuit device for sharing an antenna for GPS and private network narrowband communication according to claim 1, characterized in that: The bottom of the base (11) is fixedly connected to a threaded post (15), and the outer side wall of the threaded post (15) is threadedly connected to a threaded sleeve (16).

6. The circuit device for sharing an antenna for GPS and private network narrowband communication according to claim 5, characterized in that: The bottom of the threaded sleeve (16) is fixedly connected to a support plate (17).

7. The circuit device for sharing an antenna for GPS and private network narrowband communication according to claim 6, characterized in that: The outer side wall of the support plate (17) is symmetrically fixedly connected with a fixing plate (18), and the upper surface of the fixing plate (18) is provided with mounting holes (19).

8. The circuit device for sharing an antenna for GPS and private network narrowband communication according to claim 5, characterized in that: A connector (110) is installed at the bottom of the threaded post (15), and a cable (111) is fixedly connected to the bottom of the connector (110).

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