A nine-in-one vehicle-mounted antenna

Abstract

This utility model discloses a nine-in-one vehicle antenna, including a base plate with through holes; multiple antenna elements, all disposed on the same side of the base plate, including LTE antenna elements, WIFI antenna elements, and GPS antenna elements, with the GPS antenna element located in the center of the base plate, and the LTE and WIFI antenna elements spaced apart around the GPS antenna element; multiple cables, each cable having a first end and a second end arranged opposite each other, the first end of the cable passing through the through holes in the base plate and soldered to each antenna element accordingly, and the second end of the cable having a connector; and an antenna cover, installed on the side of the base plate where the antenna elements are located, the antenna cover adopting a dome structure, with a cavity inside the antenna cover capable of accommodating the antenna elements. This utility model has the following advantages: the nine-in-one vehicle antenna achieves miniaturization, high power functionality, an aesthetically pleasing overall appearance, and optimized electrical performance and cost-effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, and in particular to a nine-in-one vehicle-mounted antenna. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.

[0003] With the rapid development of communication technology, wireless mobile terminal products are becoming smaller and smaller, and there are more and more communication frequency bands. As a result, there are also more and more antennas. In the limited space, antenna layout is becoming more and more difficult. In existing products, WIFI antennas and GPS antennas are widely used and often coexist in the same device. Inside a physical antenna housing, multiple independent or conformal radiating elements need to be designed. It is necessary to ensure high isolation between antennas of different systems (such as LTE transmission to GPS reception) to prevent strong transmission signals from interfering with or even blocking sensitive receiving signals.

[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a nine-in-one vehicle antenna to address the shortcomings of the existing technology.

[0006] This application discloses a nine-in-one vehicle-mounted antenna, including:

[0007] The base plate has through holes;

[0008] Multiple antenna elements are provided, all of which are disposed on the same side of the base plate. The antenna elements include an LTE antenna element, a WIFI antenna element, and a GPS antenna element. The GPS antenna element is disposed in the middle of the base plate, and the LTE antenna element and the WIFI antenna element are disposed around the GPS antenna element at intervals.

[0009] Multiple cables, each cable having a first end and a second end arranged opposite to each other, the first end of the cable passing through the through hole of the base plate and being welded to each antenna element in a corresponding manner, and the second end of the cable being provided with a connector;

[0010] The antenna cover is installed on the side of the base plate where the antenna vibrator is located. The antenna cover has a dome structure and a cavity inside the antenna cover that can accommodate the antenna vibrator.

[0011] Furthermore, in the aforementioned nine-in-one vehicle antenna, the base plate is a metal disc, and the through hole extends to the part of the base plate opposite to the antenna cover and is provided with external threads, and the external threads are provided with corresponding nuts and washers.

[0012] Furthermore, in the aforementioned nine-in-one vehicle antenna, the LTE antenna vibrator is mounted on the base plate by screws. The LTE antenna vibrator is made of a PCB board, and a copper sheet is soldered to the top of the PCB board.

[0013] Furthermore, in the aforementioned nine-in-one vehicle-mounted antenna, the LTE antenna vibrator operates in the frequency bands of 698-960MHz, 1710-2700MHz, and 3400-4200MHz.

[0014] Furthermore, in the aforementioned nine-in-one vehicle antenna, the WIFI antenna vibrator is mounted on the base plate with screws, the WIFI antenna vibrator adopts a PIFA structure, and the WIFI antenna operates at a frequency of 2.4G and / or 5.8G.

[0015] Furthermore, in the aforementioned nine-in-one vehicle antenna, the GPS antenna vibrator adopts a dual ceramic structure, and the GPS antenna vibrator has an L1 frequency band and an L5 frequency band. The center frequency of the L1 frequency band is 1575.42MHz, and the center frequency of the L5 frequency band is 1176.45MHz.

[0016] Furthermore, in the aforementioned nine-in-one vehicle antenna, the base plate is provided with a mounting groove that connects to the antenna cover, and the mounting groove is provided with a plurality of fasteners that connect to the antenna cover.

[0017] Furthermore, in the aforementioned nine-in-one vehicle antenna, the connector includes a first connector connected to the LTE antenna element, a second connector connected to the WIFI antenna element, and a third connector connected to the GPS antenna element.

[0018] Furthermore, in the aforementioned nine-in-one vehicle antenna, the connector is made of C3604 brass.

[0019] In summary, the structure adopted in this embodiment of the present invention has the following advantages:

[0020] The nine-in-one vehicle antenna described in this utility model achieves miniaturization and high power, meets the requirements of vehicle appearance and aerodynamics, and has an aesthetically pleasing overall appearance. Its electrical performance and cost-effectiveness are also optimized.

[0021] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, the drawings provided are for reference and illustration only and are not intended to limit this utility model. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the nine-in-one vehicle antenna in this embodiment of the present invention;

[0024] Figure 2 This is a side view of the nine-in-one vehicle antenna in this embodiment of the present invention.

[0025] The reference numerals in the above figures are as follows: 1. Base plate; 2. LTE antenna vibrator; 3. WIFI antenna vibrator; 4. GPS antenna vibrator; 5. Cable; 6. First connector; 7. Second connector; 8. Third connector; 9. Antenna cover; 10. Fastener; 11. Nut and washer. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0028] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.

[0029] Reference Figures 1 to 2 As shown in the figure, this application discloses a nine-in-one vehicle antenna, including:

[0030] Base plate 1, wherein the base plate 1 is provided with through holes;

[0031] Multiple antenna elements are provided, all of which are located on the same side of the base plate 1. The antenna elements include an LTE antenna element 2, a WIFI antenna element 3, and a GPS antenna element 4. The GPS antenna element 4 is located in the middle of the base plate 1, and the LTE antenna element 2 and the WIFI antenna element 3 are arranged at intervals around the GPS antenna element 4.

[0032] Multiple cables 5, each cable 5 having a first end and a second end arranged opposite to each other, the first end of the cable 5 passing through the through hole of the base plate 1 and being welded to each of the antenna elements one by one, and the second end of the cable 5 being provided with a connector.

[0033] Antenna cover 9 is installed on the side of the base plate 1 where the antenna vibrator is located. The antenna cover 9 has a dome structure and a cavity inside the antenna cover 9 that can accommodate the antenna vibrator.

[0034] Specifically, in this embodiment, the base plate 1 is a metal disc, and the portion of the through hole extending to the side of the base plate 1 opposite to the antenna cover 9 is provided with external threads. The external threads are provided with corresponding nut washers 11 for installation and fixation.

[0035] Specifically, in this embodiment, the LTE antenna vibrator 2 is mounted on the base plate 1 by screws. The LTE antenna vibrator 2 is made of PCB board, and a copper sheet is soldered to the top of the PCB board.

[0036] Specifically, in this embodiment, the LTE antenna element 2 operates in the frequency bands of 698-960MHz, 1710-2700MHz, and 3400-4200MHz. The LTE antenna element 2 supports high-speed data transmission, providing a network foundation for in-vehicle infotainment systems (such as online navigation, music, and video), remote monitoring (such as cloud synchronization of dashcams), vehicle-to-everything (V2X), and future autonomous driving. It needs to cover multiple frequency bands (such as 700MHz, 800MHz, 900MHz, 1800MHz, 2100MHz, 2600MHz, etc.) to adapt to the networks of different operators worldwide. 3G / 2G fallback support: Although named "LTE," this type of antenna is typically backward compatible with 3G (UMTS / WCDMA) and 2G (GSM) networks to ensure that voice calls and basic data connections (such as emergency eCalls) can still be maintained in areas with poor 4G / 5G signal.

[0037] Specifically, in this embodiment, the WIFI antenna element 3 is mounted on the base plate 1 with screws. The WIFI antenna element 3 adopts a PIFA structure, and the WIFI antenna operates in the 2.4G and / or 5.8G frequency band. Planar Inverted-FAntenna (PIFA) 2.4G band: Due to its wide compatibility and long transmission distance, the 2.4G band is widely used in various devices, such as early wireless routers and smart home devices. However, due to the large number of devices using it, the 2.4G band is susceptible to interference, leading to unstable signals.2 The 2.4G band supports the IEEE 802.11b / g / n wireless standard, with a standard bandwidth of 20MHz and an extended bandwidth of 40MHz.3 5.8G band: The 5.8G band can provide data transmission bandwidth several times higher than 2.4G, but conversely, its shorter wavelength results in much weaker penetration than 2.4G. Therefore, it will be more difficult for some users to achieve full coverage in a given scenario using a single 5.8G transmitter. Furthermore, because 5.8G devices are significantly more expensive than 2.4G devices, their user base is not as broad. However, this also has its advantages; the 5.8G band offers clean signal strength with minimal channel occupancy. The 5.8G band supports the IEEE 802.11ac wireless standard, increasing bandwidth to 40MHz or 80MHz or even higher, and boosting transmission speeds to 1Gbps, capable of transmitting approximately 125MB of data per second.

[0038] Wi-Fi antenna elements are mainly used for: in-vehicle hotspots: converting cellular network data into Wi-Fi signals for use by passengers' devices; vehicle-to-external device connectivity: for example, remote vehicle control via mobile app, OTA (over-the-air) software upgrades, and future interaction with smart infrastructure (such as smart parking lots and smart homes).

[0039] Specifically, in this embodiment, the GPS antenna element 4 adopts a dual-ceramic structure. The GPS antenna element 4 has L1 and L5 frequency bands and is surrounded by a metal isolation mesh. The center frequency of the L1 band is 1575.42MHz, and the center frequency of the L5 band is 1176.45MHz. The L1 band is one of the most commonly used frequency bands in global satellite navigation systems, mainly used by the Global Positioning System (GPS) and GLONASS (Russian Global Navigation Satellite System). The L5 band is one of the newest frequency bands in global satellite navigation systems, with a center frequency of 1176.45MHz. The L5 band signal has a higher bandwidth and lower multipath effect, providing more accurate and reliable positioning information. Applications of the L5 band are mainly concentrated in high-precision positioning fields, such as aerospace, geological exploration, and precision agriculture. Due to the introduction of the L5 band, the performance of global satellite navigation systems has been significantly improved, providing users with a better positioning and navigation experience.

[0040] Inside a physical antenna housing, multiple independent or conformal radiating elements need to be designed to operate efficiently over an extremely wide frequency range from 700MHz to 5.8GHz. This ensures that the antenna in each frequency band can achieve good impedance matching with the back-end circuitry (such as coaxial cable 5 and the receiver), maximizing energy transfer and reducing signal reflection and loss.

[0041] Specifically, in this embodiment, the base plate 1 is provided with a mounting groove that connects to the antenna cover 9, and the mounting groove is provided with a plurality of fasteners 10 that connect to the antenna cover 9. The fasteners 10 can be screws or other fastening connection structures, which ensures the connection structure between the antenna cover 9 and the base plate 1, further improves the overall stability of the antenna, and prevents it from shaking and falling off.

[0042] Specifically, in this embodiment, the connector includes a first connector 6 connected to the LTE antenna vibrator 2, a second connector 7 connected to the WIFI antenna vibrator 3, and a third connector 8 connected to the GPS antenna vibrator 4.

[0043] Specifically, in this embodiment, the connector is made of C3604 brass. C3604 brass is an environmentally friendly copper material with high strength, dense and uniform structure, good plasticity, and good corrosion resistance.

[0044] With the above structure, four LTE antenna elements 2, four WIFI antenna elements 3, and one GPS antenna element 4 are arranged. The GPS antenna element 4 is located in the middle of the base plate 1. The LTE antenna elements 2 and the WIFI antenna elements 3 are arranged at intervals around the GPS antenna element 4. The LTE antenna elements 2 are connected to the first connector 6 in a one-to-one correspondence, the WIFI antenna elements 3 are connected to the second connector 7 in a one-to-one correspondence, and the GPS antenna element 4 is connected to the third connector 8. The nine-in-one vehicle antenna achieves miniaturization, high power, meets the requirements of car appearance (usually shark fin shape) and aerodynamics, and has an overall beautiful appearance, optimized electrical performance, and cost performance.

[0045] The antenna itself is both a source and a target of interference. The design must ensure that the antenna can operate stably in the complex electromagnetic environment of the vehicle, without being interfered with by other electronic devices in the vehicle (such as motors, ECUs, and displays), and without causing excessive electromagnetic radiation interference to other devices.

[0046] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the scope of the patent application of the present utility model.

[0047] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0048] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.

Claims

1. A nine-in-one vehicle-mounted antenna, characterized in that, include: The base plate has through holes; Multiple antenna elements are provided, all of which are disposed on the same side of the base plate. The antenna elements include an LTE antenna element, a WIFI antenna element, and a GPS antenna element. The GPS antenna element is disposed in the middle of the base plate, and the LTE antenna element and the WIFI antenna element are disposed around the GPS antenna element at intervals. Multiple cables, each cable having a first end and a second end arranged opposite to each other, the first end of the cable passing through the through hole of the base plate and being welded to each antenna element in a corresponding manner, and the second end of the cable being provided with a connector; The antenna cover is installed on the side of the base plate where the antenna vibrator is located. The antenna cover has a dome structure and a cavity inside the antenna cover that can accommodate the antenna vibrator.

2. The nine-in-one vehicle-mounted antenna according to claim 1, characterized in that, The base plate is a metal disc, and the through hole extends to the part of the base plate opposite to the antenna cover and is provided with external threads. The external threads are provided with corresponding nuts and washers.

3. The nine-in-one vehicle-mounted antenna according to claim 1, characterized in that, The LTE antenna vibrator is mounted on the base plate by screws. The LTE antenna vibrator is made of PCB board, and a copper sheet is soldered to the top of the PCB board.

4. The nine-in-one vehicle-mounted antenna according to claim 1, characterized in that, The LTE antenna vibrator operates in the following frequency bands: 698-960MHz, 1710-2700MHz, and 3400-4200MHz.

5. The nine-in-one vehicle-mounted antenna according to claim 1, characterized in that, The WIFI antenna vibrator is mounted on the base plate with screws. The WIFI antenna vibrator adopts a PIFA structure. The WIFI antenna operates in the 2.4G and / or 5.8G frequency band.

6. The nine-in-one vehicle-mounted antenna according to claim 1, characterized in that, The GPS antenna vibrator adopts a dual ceramic structure and has L1 and L5 frequency bands. The center frequency of the L1 frequency band is 1575.42MHz and the center frequency of the L5 frequency band is 1176.45MHz.

7. The nine-in-one vehicle-mounted antenna according to claim 1, characterized in that, The base plate is provided with a mounting groove for connecting to the antenna cover, and the mounting groove is provided with a number of fasteners for connecting to the antenna cover.

8. The nine-in-one vehicle-mounted antenna according to claim 1, characterized in that, The connector includes a first connector connected to the LTE antenna vibrator, a second connector connected to the WIFI antenna vibrator, and a third connector connected to the GPS antenna vibrator.

9. The nine-in-one vehicle-mounted antenna according to claim 1, characterized in that, The connector is made of C3604 brass.

Images