Three-in-one antenna and communication equipment

Abstract

The utility model discloses a three-in-one antenna and communication equipment, and relates to the technical field of antennas. The three-in-one antenna comprises a shell, a circuit board arranged in the shell, and a 4G onboard antenna, a ceramic plug-in antenna and a WIFI onboard antenna which are sequentially arranged on the circuit board at intervals, the 4G onboard antenna, the ceramic plug-in antenna and the WIFI onboard antenna are connected with the coaxial cable assemblies in a one-to-one correspondence manner and are grounded through the coaxial cable assemblies. According to the three-in-one antenna, the three antennas are integrated in a small space, the isolation among the antennas is good, and the space utilization rate is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of antennas, in particular to a three-in-one antenna and a communication device. BACKGROUND

[0002] With the rapid development of satellite communication and mobile communication, the demand for various antennas is increasing rapidly. At present, whether it is vehicle-mounted, WIFI or outdoor equipment, etc., it has become an important application scenario of the antenna. In this environment, the application of multi-in-one antenna is becoming more and more widespread.

[0003] The multi-in-one antenna has wide adaptability to meet various complex and variable Internet of Things scenarios, and at the same time puts forward higher requirements for multi-antenna and antenna integration, requiring high multi-antenna integration, high antenna bandwidth, high radiation efficiency, good isolation, small size, etc.

[0004] In the field of mobile communication network technology, multi-antenna integration, antenna bandwidth, radiation efficiency, and isolation are the key to data flow. The performance of these parameters directly determines the performance quality of the communication device, and then affects the upload and download rates of the terminal.

[0005] The existing multi-antenna communication system is mainly divided into two categories: the first category adopts multiple independent antennas, which can realize flexible configuration, but faces the dual challenges of mutual interference and limited installation space; the second category adopts multiple combined antennas, which solves the problem of limited installation space, but generally has the defects of large physical size and insufficient system adaptability (current combined antennas are mostly fixed forms designed for 4G / 5G MIMO), which is difficult to meet the diversified antenna demand of modern communication systems for multi-frequency, multi-protocol and multi-scenario.

[0006] Therefore, it is urgent to propose a small combined antenna with high performance, high integration and wide frequency coverage range to solve the above technical problems. CONTENT OF THE INVENTION

[0007] The purpose of the present application is to provide a three-in-one antenna and a communication device, which integrates three antennas in a small space, and has good isolation between antennas and high space utilization.

[0008] The embodiments of the present application are implemented as follows:

[0009] The first aspect of the embodiment of the present application provides a three-in-one antenna, which comprises a shell, a circuit board arranged in the shell, and a 4G on-board antenna, a ceramic plug-in antenna and a WIFI on-board antenna arranged on the circuit board in sequence, the 4G on-board antenna, the ceramic plug-in antenna and the WIFI on-board antenna are connected with coaxial cable assemblies one by one and grounded through the coaxial cable assemblies. The three-in-one antenna integrates three antennas in a small space, and the isolation between the antennas is good, and the space utilization is high.

[0010] As an optional implementation, the 4G on-board antenna and the WIFI on-board antenna are arranged vertically.

[0011] As an optional implementation, the circuit board is in a rectangular structure, the 4G on-board antenna is arranged on the short side of the rectangular structure, and the WIFI on-board antenna is arranged on the long side of the rectangular structure.

[0012] As an optional implementation, a shielding cover is further included, the shielding cover covers the ceramic plug-in antenna, so that the 4G on-board antenna, the ceramic plug-in antenna and the WIFI on-board antenna are isolated.

[0013] As an optional implementation, a flexible buffer pad is arranged between the outer wall surface of the shielding cover and the inner wall surface of the shell.

[0014] As an optional implementation, the shell comprises a cover and a base which are buckled to each other, and the cover and the base are fixedly and sealingly connected through glue.

[0015] As an optional implementation, a fastener is further included, a mounting hole is arranged on the base, a connecting hole is arranged on the circuit board, and the fastener is arranged in the connecting hole and the mounting hole, so that the circuit board is fixedly arranged on the base.

[0016] As an optional implementation, the coaxial cable assembly comprises LTE coaxial cables, GNSS coaxial cables and WIFI coaxial cables arranged side by side, and the 4G on-board antenna, the ceramic plug-in antenna and the WIFI on-board antenna are connected with the LTE coaxial cables, the GNSS coaxial cables and the WIFI coaxial cables one by one.

[0017] As an optional implementation, the shell is made of plastic, and the circuit board is made of FR-4 dielectric material.

[0018] The second aspect of the embodiment of the present application provides a communication device, which comprises the three-in-one antenna. The three-in-one antenna integrates three antennas in a small space, and the isolation between the antennas is good, and the space utilization is high.

[0019] The beneficial effects of the embodiments of the present application include:

[0020] The three-in-one antenna comprises a shell, a circuit board arranged in the shell, and a 4G on-board antenna, a ceramic plug-in antenna and a WIFI on-board antenna arranged on the circuit board in sequence, the 4G on-board antenna, the ceramic plug-in antenna and the WIFI on-board antenna are connected one by one with the coaxial cable assembly and grounded through the coaxial cable assembly. Compared with the prior art, the three different function antennas (i.e. the 4G on-board antenna, the ceramic plug-in antenna and the WIFI on-board antenna) are integrated in a smaller space, which can meet the different types of communication function requirements, has high integration, simple and reliable assembly; through the actual selection of the 4G on-board antenna, the ceramic plug-in antenna and the WIFI on-board antenna and the reasonable layout design of the positions, the space size and assembly requirements of the 4G antenna and the WIFI antenna are reduced, the stability and reliability of the three-in-one antenna assembly are ensured, the product size of the three-in-one antenna is reduced, and the space utilization of the three-in-one antenna is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the present application, therefore should not be regarded as a limitation on the scope, for those skilled in the art, without creative labor, other related drawings can also be obtained according to these drawings.

[0022] Figure 1 One of the structure schematic diagrams of the three-in-one antenna provided by the embodiments of the present application;

[0023] Figure 2 The structure schematic diagram of the circuit board provided by the embodiments of the present application;

[0024] Figure 3 The second structure schematic diagram of the three-in-one antenna provided by the embodiments of the present application;

[0025] Figure 4 The third structure schematic diagram of the three-in-one antenna provided by the embodiments of the present application.

[0026] Figure: 100-three-in-one antenna; 10-shell; 11-cover; 111-identification part; 12-base; 121-mounting hole; 122-fixing glue; 13-glue body; 20-circuit board; 21-connection hole; 30-4G on-board antenna; 40-ceramic plug-in antenna; 50-WIFI on-board antenna; 60-coaxial cable assembly; 61-LTE coaxial cable; 62-GNSS coaxial cable; 63-WIFI coaxial cable; 70-shielding cover; 80-flexible buffer pad; 90-fastener. DETAILED DESCRIPTION

[0027] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative work fall within the scope of protection of the present application.

[0029] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the connection between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Please refer to Figures 1 to 4 The embodiment of the present application provides a three-in-one antenna 100, which comprises a shell 10, a circuit board 20 arranged in the shell 10, and a 4G on-board antenna 30, a ceramic plug-in antenna 40 and a WIFI on-board antenna 50 arranged on the circuit board 20 in sequence. The 4G on-board antenna 30, the ceramic plug-in antenna 40 and the WIFI on-board antenna 50 are connected to the coaxial cable assembly 60 one by one and grounded through the coaxial cable assembly 60. The three-in-one antenna 100 integrates three antennas in a small space, and the isolation between the antennas is good, and the space utilization is high.

[0034] It should be noted that, as Figure 1 , Figure 3 and Figure 4 indicated, the three-in-one antenna 100 comprises a shell 10, so as to take the shell 10 as the external protective structure of the entire three-in-one antenna 100 device, thereby playing a mounting and protection role for each component arranged inside the shell 10. Specifically, as Figure 1 and Figure 2 indicated, the circuit board 20 is placed inside the shell 10, and three different types of antennas are arranged on the circuit board 20 in sequence at a certain interval, which are the 4G on-board antenna 30, the ceramic plug-in antenna 40 and the WIFI on-board antenna 50, so that three antennas capable of meeting different functional requirements are integrated on one circuit board 20.

[0035] When designing the 4G antenna and the WIFI antenna, the 4G antenna and the WIFI antenna are both designed as on-board antennas, that is, the 4G antenna and the WIFI antenna are directly made on the circuit board 20 to obtain the 4G on-board antenna 30 and the WIFI on-board antenna 50, thereby reducing the empty size and assembly requirements of the 4G antenna and the WIFI antenna. At the same time, when designing the ceramic antenna, the ceramic antenna is fixed on the circuit board 20 by plugging to obtain the ceramic plug-in antenna 40, thereby ensuring the stability and reliability of the assembly of the three-in-one antenna 100 while meeting different functional requirements.

[0036] In order to ensure the normal work of the 4G on-board antenna 30, the ceramic plug-in antenna 40 and the WIFI on-board antenna 50, the coaxial cable assembly 60 also plays an electrical connection role. As Figure 1 , Figure 3 and Figure 4 indicated, in this embodiment, the 4G on-board antenna 30, the ceramic plug-in antenna 40 and the WIFI on-board antenna 50 are connected to the coaxial cable assembly 60 one by one, and the grounding operation is realized through the coaxial cable assembly 60, thereby ensuring appropriate electrical connection and normal signal transmission of the antenna during work.

[0037] The application directly makes the 4G onboard antenna 30 and the WIFI onboard antenna 50, plugs and welds the ceramic plug-in antenna 40 on the circuit board 20, and respectively connects the 4G onboard antenna 30, the ceramic plug-in antenna 40 and the WIFI onboard antenna 50 with the coaxial cable assembly 60 and grounds through the coaxial cable assembly 60. In addition to the above-mentioned size reduction and electrical connection, this connection mode can also ensure that the three-in-one antenna 100 has good anti-vibration characteristics when used in various systems.

[0038] Compared with the prior art, the application integrates three different function antennas (i.e. the 4G onboard antenna 30, the ceramic plug-in antenna 40 and the WIFI onboard antenna 50) in a smaller space, can meet different types of communication function requirements, and through reasonable layout design of the actual selection and position of the 4G onboard antenna 30, the ceramic plug-in antenna 40 and the WIFI onboard antenna 50, the space size and assembly requirements of the 4G antenna and the WIFI antenna are reduced, the stability and reliability of the three-in-one antenna 100 are ensured, the product size of the three-in-one antenna 100 is reduced, and the space utilization of the three-in-one antenna 100 is improved.

[0039] For example, in the embodiment, the frequency coverage range of the 4G onboard antenna 30 is 700MHz to 960MHz and 1700MHz to 2700MHz, the frequency coverage range of the WIFI onboard antenna 50 is 2400MHz to 2500MHz and 5150MHz to 5850MHz, and the frequency coverage range of the ceramic plug-in antenna 40 is GPS L1 and BDS B1, so as to provide multiple network connections including 4G, WIFI and GNSS through the three-in-one antenna 100, and backward compatible with 3G / 2G, etc., so as to realize stable and comprehensive signal transmission and ensure that it can provide excellent network connection at all times in new energy, unmanned aerial vehicle and other industries and applications.

[0040] As an optional implementation manner, as Figure 2 In the embodiment, the 4G onboard antenna 30 and the WIFI onboard antenna 50 are vertically arranged, or in other words, the 4G onboard antenna 30 and the WIFI onboard antenna 50 are orthogonally distributed, which can more reasonably use the internal space of the three-in-one antenna 100, improve the isolation degree of the antenna, and realize product miniaturization while ensuring performance.

[0041] For example, as Figure 2 In the embodiment, the circuit board 20 is in a rectangular structure, the 4G onboard antenna 30 is arranged at the short side of the rectangular structure, and the WIFI onboard antenna 50 is arranged at the long side of the rectangular structure.

[0042] As an optional implementation, as shown in Figure 1 In this embodiment, the triplex antenna 100 further comprises a shielding cover 70, which is arranged outside the ceramic plug-in antenna 40 to isolate the 4G on-board antenna 30, the ceramic plug-in antenna 40 and the WIFI on-board antenna 50, so as to further improve the isolation of the antenna through the shielding cover 70, thereby ensuring that the communication functions corresponding to each antenna can be stably and efficiently operated, and improving the quality and reliability of communication.

[0043] As an optional implementation, as shown in Figure 1 In this embodiment, a flexible buffer pad 80, for example, made of EVA material, is arranged between the outer wall surface of the shielding cover 70 and the inner wall surface of the shell 10, so as to play a buffering and protecting role between the shielding cover 70 and the shell 10 through the flexible buffer pad 80.

[0044] As an optional implementation, as shown in Figure 1 and Figure 4 In this embodiment, the shell 10 comprises a cover 11 and a base 12 which are buckled to each other, and the cover 11 and the base 12 are fixedly and sealingly connected through a glue 13 to improve the waterproof level of the triplex antenna 100. For example, an identification member 111 is arranged on the cover 11 to facilitate the user to identify through the identification member 111; a fixing glue 122 is arranged on the base 12 to facilitate the installation and fixation of the triplex antenna 100 on the terminal device through the fixing glue 122; the waterproof level can reach IP67 to improve the performance of the triplex antenna 100 in the waterproof aspect, so as to be suitable for more installation environments and improve the application prospect in the terminal devices such as vehicle-mounted, remote monitoring, mobile medical treatment, charging station and the like.

[0045] As an optional implementation, as shown in Figure 1 In this embodiment, the triplex antenna 100 further comprises a fastener 90, the base 12 is provided with a mounting hole 121, and the circuit board 20 is provided with a connecting hole 21, the fastener 90 is arranged in the connecting hole 21 and the mounting hole 121 to fix and install the circuit board 20 on the base 12, so as to ensure the stability and reliability of the connection between the circuit board 20 and the base 12, and has the advantages of simple and reliable assembly.

[0046] As an optional implementation, as shown in Figure 1 and Figure 3As shown, in the embodiment, the coaxial cable assembly 60 includes the LTE coaxial cable 61, the GNSS coaxial cable 62 and the WIFI coaxial cable 63 arranged side by side, and the 4G on-board antenna 30, the ceramic plug-in antenna 40 and the WIFI on-board antenna 50 are connected with the LTE coaxial cable 61, the GNSS coaxial cable 62 and the WIFI coaxial cable 63 one by one respectively, so as to ensure that the antennas can have proper electrical connection when working, and thus stable and comprehensive signal transmission can be realized.

[0047] As an optional implementation, the shell 10 is made of plastic to reduce the product weight of the three-in-one antenna 100; the circuit board 20 is made of FR-4 dielectric material to ensure the transmission performance of high-frequency signal transmission by the good electrical performance of the FR-4 dielectric material, reduce the attenuation and distortion of high-frequency signals, and at the same time, the high strength and hardness of the FR-4 dielectric material can ensure that the circuit board 20 can withstand a certain degree of external force impact and bending, and protect the antennas and other electronic elements arranged thereon, in addition, the good thermal stability of the FR-4 dielectric material can improve the performance of the three-in-one antenna 100 in terms of flame retardation, ultraviolet resistance and working temperature, so as to be suitable for more installation environments.

[0048] The embodiment of the present application also provides a communication device comprising the three-in-one antenna 100 described above. Since the structure and beneficial effects of the three-in-one antenna 100 have been described in detail in the foregoing embodiments, they will not be described here again.

[0049] The above only describes optional embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0050] In addition, it should be noted that each specific technical feature described in the foregoing specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the present application will not describe various possible combinations again.

Claims

1. A tri-band antenna, characterized by, The shell, the circuit board arranged in the shell, and the 4G on-board antenna, the ceramic plug-in antenna and the WIFI on-board antenna arranged on the circuit board in sequence, the 4G on-board antenna, the ceramic plug-in antenna and the WIFI on-board antenna are connected with the coaxial cable assembly one by one and grounded through the coaxial cable assembly.

2. The tri-band antenna of claim 1, wherein, The 4G on-board antenna and the WIFI on-board antenna are arranged vertically.

3. The tri-band antenna of claim 2, wherein, The circuit board is in a rectangular structure, the 4G on-board antenna is arranged on the short side of the rectangular structure, and the WIFI on-board antenna is arranged on the long side of the rectangular structure.

4. The tri-band antenna of claim 1, wherein, The shielding cover is further arranged outside the ceramic plug-in antenna to isolate the 4G on-board antenna, the ceramic plug-in antenna and the WIFI on-board antenna.

5. The tri-band antenna of claim 4, wherein, A flexible buffer pad is arranged between the outer wall surface of the shielding cover and the inner wall surface of the shell.

6. The tri-band antenna of claim 1, wherein, The shell comprises a cover and a base which are buckled to each other, and the cover and the base are fixed and sealedly connected through the glue.

7. The tri-band antenna of claim 6, wherein, The fastener is further arranged in the connecting hole and the mounting hole to fix and install the circuit board on the base.

8. The tri-band antenna of claim 1, wherein, The coaxial cable assembly comprises the LTE coaxial cable, the GNSS coaxial cable and the WIFI coaxial cable arranged side by side, and the 4G on-board antenna, the ceramic plug-in antenna and the WIFI on-board antenna are connected with the LTE coaxial cable, the GNSS coaxial cable and the WIFI coaxial cable one by one.

9. The tri-band antenna according to any one of claims 1-8, wherein, The shell is made of plastic, and the circuit board is made of FR-4 dielectric material.

10. A communication device, characterized by The three-in-one antenna of any one of claims 1-9 is further included.

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