CN209804903U

CN209804903U - Antenna device

Info

Publication number: CN209804903U
Application number: CN201921071757.4U
Authority: CN
Inventors: 张亚斌
Original assignee: Changzhou Ke Tewa Electronics Co Ltd
Current assignee: Changzhou ketewa Electronics Co.,Ltd.
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2019-12-17
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses an antenna device, according to the demand in the in-service use, 5G antenna, C-V2X antenna, WLAN antenna integration are in an antenna device and have been designed 4 the putting position of 5G antenna, realize supporting 5G, C-V2X, WLAN's function simultaneously, owing to adopt a combination antenna rather than a plurality of antennas, have reduced a plurality of antennas overall cost and installation cost, are convenient for find suitable mounted position; because the placing positions of the 4 5G antennas are designed, the isolation between the antennas is improved, and the condition that the antennas interfere with each other is avoided.

Description

Antenna device

Technical Field

The utility model relates to a technical field of thing networking, car communication, car networking, autopilot especially relates to antenna device.

Background

Nowadays, the fourth generation mobile communication technology, i.e. 4G LTE (Long Term Evolution), has been perfected and popularized. The 5G technology is a key point and a hot point of research and development, and the key characteristics of the 5G network are high-speed data transmission, low time delay and high reliability. Due to these features of 5G communication, it can be used for automotive autopilot in combination with car networking and high precision navigation. Among them, the development of antennas as key components for wireless communication is also actively underway.

Since 5G communication, car networking (C-V2X, Cellular Vehicle networking) and WLAN (Wireless LAN) all use MIMO (multiple-input multiple-output) technology, there are communication modules that are introduced by manufacturers of Wireless communication modules to support these functions at the same time. This requires that the respective antennas also support these functions simultaneously. The antenna solutions of the prior art are multi-antenna solutions, i.e. the functions are distributed among several antenna (two, three or more) modules. The drawback of this solution is the high overall cost of the multiple antennas, the difficulty of finding a suitable mounting location on the vehicle and the high cost of installation.

The same kind of problem exists in other IoT (Internet of Things) domains.

Patent CN107592947A discloses a shark fin antenna including a vehicle type networking communication system equipped with a V2X communication system and embedded AM, FM, TDMB, satellite integrated, Wave, WiFi and 3G/4G integrated telematics antenna structure to wirelessly provide various frequency transmission/reception signals to a user's vehicle, a user's desired neighboring vehicle and pedestrians, thereby providing an integrated telematics service.

it can be seen that the above patent can provide a combined antenna supporting 4G, C-V2X, WLAN functions at the same time, but cannot support 5G, C-V2X, WLAN functions at the same time.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the present invention provides an antenna device, which aims to solve the problem that the combined antenna of the prior art cannot support 5G, C-V2X and WLAN functions simultaneously.

the purpose of the utility model is realized by adopting the following technical scheme:

an antenna device comprises a PCB module, wherein a 5G antenna, a C-V2X antenna and a WLAN antenna are arranged on the PCB module; the number of the C-V2X antennas and the number of the WLAN antennas are respectively 1 or more;

The PCB module is provided with a first end and a second end which are opposite in position; the PCB module is also provided with a first side and a second side which are opposite in position, and a connecting line between the first side and the second side is intersected with a connecting line between the first end and the second end;

the 5G antenna comprises a first 5G antenna, a second 5G antenna, a third 5G antenna and a fourth 5G antenna;

The first 5G antenna is close to the first end, and the second 5G antenna is close to the second end;

The third 5G antenna is close to the first side and the fourth 5G antenna is close to the second side.

On the basis of the above embodiment, preferably, the PCB module includes a PCB main board, a first PCB board, and a second PCB board; the first PCB board and the second PCB board are respectively arranged at two ends of the PCB main board;

Taking one end of the first PCB, which is far away from the PCB main board, as a first end; and one end of the second PCB, which is far away from the PCB main board, is taken as a second end.

Or, preferably, the operating frequency band of the first 5G antenna covers the operating frequency bands of 2G, 3G, and 4G; and the working frequency band of the second 5G antenna covers the working frequency band of 4G.

Or, preferably, a capacitor is arranged at the feed point of the second 5G antenna.

Or, preferably, the third 5G antenna is a slot antenna fed by a microstrip line;

And/or the presence of a gas in the gas,

The fourth 5G antenna is a slot antenna fed by a microstrip line.

alternatively, preferably, the C-V2X antenna comprises a first C-V2X antenna and/or a second C-V2X antenna; the WLAN antenna comprises a first WLAN antenna and/or a second WLAN antenna;

The first C-V2X antenna is on the same side as the second end, the second C-V2X antenna is on the same side as the first end, and the distances between the first C-V2X antenna and the second 5G antenna, between the second C-V2X antenna and the first 5G antenna are determined through electromagnetic simulation;

A first WLAN antenna is proximate the first side and a second WLAN antenna is proximate the second side.

On the basis of any of the above embodiments, preferably, at least 1 of the WLAN antennas is a slot antenna fed by using a microstrip line.

On the basis of any of the above embodiments, preferably, a GNSS antenna is further disposed at the middle position of the PCB module.

on the basis of the above embodiment, preferably, the GNSS antenna is a dual-band antenna, and an operating frequency band of the GNSS antenna covers a GPS frequency band, a beidou frequency band, a Glonass frequency band, a galileo L1, and an L2 frequency band.

or, preferably, the GNSS antenna is a double-layer ceramic structure;

The GNSS antenna adopts a double-feed-point circular polarization mode or a single-feed-point circular polarization mode.

compared with the prior art, the beneficial effects of the utility model reside in that:

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a perspective view illustrating an antenna device according to an embodiment of the present invention;

Fig. 2 is a top view of an antenna device according to an embodiment of the present invention;

Fig. 3 is a front view of an antenna device according to an embodiment of the present invention;

Fig. 4 is a rear view of an antenna device according to an embodiment of the present invention;

fig. 5a shows a VSWR graph of a first 5G antenna provided by an embodiment of the present invention;

Fig. 5b shows a VSWR graph of a second 5G antenna provided by an embodiment of the present invention;

fig. 5c shows a VSWR graph of a third 5G antenna provided by an embodiment of the present invention;

Fig. 5d shows a VSWR graph of a fourth 5G antenna provided by the embodiment of the present invention;

Fig. 5e shows a VSWR graph of a first C-V2X antenna provided by an embodiment of the invention;

Fig. 5f illustrates a VSWR graph for a second C-V2X antenna provided by an embodiment of the invention;

Fig. 5g illustrates a VSWR graph for a first WLAN antenna provided by an embodiment of the invention;

Fig. 5h shows a VSWR graph of a second WLAN antenna according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Detailed description of the preferred embodiment

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides an antenna device, which includes an antenna housing 1, a radio frequency connector 2, and a PCB module. The PCB module is arranged inside the antenna shell 1; the radio frequency connector 2 is partially arranged outside the antenna housing 1 and partially arranged inside the antenna housing 1. The PCB module and the radio frequency connector 2 are connected with each other.

Wherein, 5G means that the fifth Generation mobile communication technology (5th Generation mobile networks or 5th Generation wireless systems, 5th-Generation, abbreviated as 5G) is the latest Generation cellular mobile communication technology.

PCB, Printed Circuit Board.

The embodiment of the utility model provides a do not restrict antenna case 1's material, it can be the plastic material, like ABS, PC etc. The ABS plastic is a terpolymer of three monomers of acrylonitrile (A), butadiene (B) and styrene (S), and the relative contents of the three monomers can be changed at will to prepare various resins. PC, that is, polycarbonate, is a high molecular polymer containing a carbonate group in its molecular chain, and is classified into various types such as aliphatic, aromatic, aliphatic-aromatic, and the like, depending on the structure of the ester group.

the radio frequency connector 2 may be a FAKRA, SMA, SMB, IPEX connector for establishing a connection with other external devices.

FAKRA is a standard connector for audio and antenna of automobile. FAKRA connector refers to a radio frequency connector 2 used in the automotive industry.

The SMA series connector is a widely used coaxial connector with small-sized screw connection, has excellent service life and high reliability, and is widely used for microwave equipment and digital communication equipment radio frequency return coaxial cable components or microstrips.

The SMB type coaxial connector is a small push-in locking type radio frequency coaxial connector, has the characteristics of small volume, light weight, convenient use, excellent electrical property and the like, and is suitable for connecting coaxial cables in high-frequency circuits of radio equipment and electronic instruments.

The IPEX connector is mainly applied to a micro radio frequency coaxial cable connector, has a small package, generally has a working frequency of 0 to 6GHz, and is commonly found in a WiFi (wireless fidelity, wireless local area network based on IEEE 802.11b standard) antenna, a router antenna, a GPS (Global Positioning System) antenna, a mobile phone antenna, and the like. IEEE refers to the Institute of Electrical and electronics Engineers, and is collectively referred to as the Institute of Electrical and electronics Engineers.

Various antennas are arranged on the PCB module, and each antenna corresponds to one radio frequency connector 2. For example, when there are 9 antennas, the antenna device comprises 9 radio frequency connectors 2. The output port of the antenna device may adopt 9 FAKRA connectors, corresponding to the 9 corresponding antennas respectively.

The embodiment of the utility model provides a do not restrict antenna device's structure, size, it can be the rectangle structure, length 140 millimeters, width 60 millimeters, height 20 millimeters.

The PCB module may be provided with a first 5G antenna 3, a second 5G antenna 4, a third 5G antenna 5, a fourth 5G antenna 6. The number of the first 5G antennas 3 is not limited, and may be 1, 2 or more. Similarly, the number of the second 5G antenna 4, the third 5G antenna 5, and the fourth 5G antenna 6 is not limited, and may be several.

The first 5G antenna 3 can simultaneously support 2G, 3G and 4G LTE, and the working frequency band includes 824-. The advantage of this is that when there is no 5G signal in a certain use environment, 2G, 3G and 4G information services can be provided for the user. For example, in some areas with 5G behind construction, the product may only support 2G and 3G, and the product may still serve the user information in the 2G and 3G environments.

The second 5G antenna 4 can simultaneously support 4G LTE compatibly, and the operating frequency band includes 1710-.

The working frequency bands of the third 5G antenna 5 and the fourth 5G antenna 6 may include 3300-.

The first 5G antenna 3, the second 5G antenna 4, the third 5G antenna 5, and the fourth 5G antenna 6 may constitute a 4 × 4MIMO array.

Besides the 5G antenna, one or more of a C-V2X antenna, a WLAN antenna, a Bluetooth antenna, a ZigBee antenna and a GNSS antenna can be arranged on the PCB module. Wherein, the number of each antenna can be 1, 2 or more. The antenna device has the advantages that all functions of the antenna such as 5G, V2X, WLAN, Bluetooth, ZigBee, GNSS and the like are realized by using one antenna device, so that the cost of the antenna and the installation cost are further reduced, and the installation is convenient; in addition, the integration of multiple functions provides information service with wider application range for the user, and improves the user experience.

ZigBee is a highly reliable wireless data transmission network, similar to CDMA (Code Division Multiple Access) and GSM (Global System for Mobile Communications) networks.

GNSS, Global Navigation Satellite System.

the PCB module may be one PCB board, and may include 2 or more PCB boards.

As shown in fig. 3, the PCB module may include 3 PCBs, that is, a PCB main board 12, a first PCB 13, and a second PCB 14, where the first PCB 13 and the second PCB 14 are respectively disposed at two ends of the PCB main board 12.

The PCB main board 12 may be a double-sided FR4 board, and the first PCB board 13 and the second PCB board 14 may be single-sided FR4 boards. FR4 is a flame-resistant material grade designation, which refers to a material specification for which the resin material must be capable of self-extinguishing when subjected to a fire.

each antenna may be located on the PCB main board 12, the first PCB 13 or the second PCB 14, or distributed on more than 1 PCB according to the requirement of the practical application. For example, an antenna may be partially located on the PCB main board 12 and partially located on the first PCB 13, or partially located on the PCB main board 12 and partially located on the second PCB 14.

The PCB main board 12 may include a plurality of PCB units, each antenna may be located on any PCB unit according to the requirement in the actual application, and similarly, the first PCB 13 and the second PCB 14 may also include a plurality of PCB units, and each antenna may be located on any PCB unit according to the requirement in the actual application.

The embodiment of the utility model provides a can use the one end that PCB mainboard 12 was kept away from to first PCB board 13 to the one end that PCB mainboard 12 was kept away from to second PCB board 14 is the second end, is provided with relative first side in position and second side on PCB mainboard 12, and the line between first side, the second side is crossing with the line between first end, the second end. The embodiment of the utility model provides a do not restrict PCB mainboard 12, first PCB board 13, second PCB board 14's shape, it can be arbitrary shape such as rectangle, oval-shaped, trapezoidal, parallelogram, triangle-shaped.

The first 5G antenna 3 may be close to the first end. The embodiment of the utility model provides an in, including two kinds of situations at least: is located in close proximity to the first end; and, located on the first end.

similarly, the second 5G antenna 4 may be close to the second end. The first 5G antenna 3 and the second 5G antenna 4 are close to the first end and the second end respectively, so that the isolation between the antennas can be increased. In a multi-antenna environment, the isolation between antennas is a very important and critical technical indicator.

the third 5G antenna 5 may be close to the first side and the fourth 5G antenna 6 may be close to the second side.

By designing the installation position of the 5G antenna, the isolation between the 5G antennas is greatly improved.

When the number of C-V2X antennas is 2, the C-V2X antennas include a first C-V2X antenna 7 and a second C-V2X antenna 8, constituting a 2x2MIMO array. The first C-V2X antenna 7 may be the same side as the second end, the second C-V2X antenna 8 may be the same side as the first end, and the distance between the first C-V2X antenna 7 and the second 5G antenna 4, and the distance between the second C-V2X antenna 8 and the first 5G antenna 3 may be determined through electromagnetic simulation for improving the isolation between the antennas. The first C-V2X antenna 7 is located approximately opposite the first 5G antenna 3 and the second C-V2X antenna 8 is located approximately opposite the second 5G antenna 4. The working frequency bands of the first C-V2X antenna 7 and the second C-V2X antenna 8 can comprise 5850 and 5925 MHz.

The first C-V2X antenna 7 and the second C-V2X antenna 8 may be monopole antennas.

When the number of WLAN antennas is 2, the WLAN antennas include a first WLAN antenna 9 and a second WLAN antenna 10, constituting a 2 × 2MIMO array. The first WLAN antenna 9 may be close to the first side and the second WLAN antenna 10 may be close to the second side. The operating frequency bands of the first WLAN antenna 9 and the second WLAN antenna 10 may comprise 2.4-2.5 GHz.

The GNSS antenna 11 may be disposed at an intermediate position of the PCB module.

As can be seen from fig. 2, this antenna device comprises a rectangular PCB main board 12, a rectangular first PCB board 13, and a rectangular second PCB board 14. The first 5G antenna 3 and the second 5G antenna 4 are located approximately opposite to each other, the first 5G antenna 3 is located partly on the PCB main board 12 and partly on the first PCB 13, and the second 5G antenna 4 is located partly on the PCB main board 12 and partly on the second PCB 14. The third 5G antenna 5 and the fourth 5G antenna 6 are located approximately opposite to each other, and are located on two sides of the PCB main board 12. The first C-V2X antenna 7 and the second C-V2X antenna 8 are located approximately opposite to each other at two ends of the PCB main board 12, respectively, and the first C-V2X antenna 7 is located on the second PCB 14 and the second C-V2X antenna 8 is located on the first PCB 13. The first WLAN antenna 9 and the second WLAN antenna 10 are located approximately opposite to each other, and are located on two sides of the PCB main board 12.

The first 5G antenna 3 may employ a PIFA structure for expanding the frequency band of the antenna. PIFA, Planar Inverted F-shaped Antenna. For example, the first 5G antenna 3 may adopt the antenna structure in patent CN 208939136U.

The feed point of the second 5G antenna 4 may be provided with a capacitor, so as to effectively improve the isolation between the feed point and the first 5G antenna 3 at low frequency (824-. The number of capacitors is not limited, and may be 1, 2 or more.

The third 5G antenna 5 and the fourth 5G antenna 6 may be slot antennas. The slot antenna is provided with a slot on a waveguide, a metal plate, a coaxial line or a resonant cavity, and electromagnetic waves are radiated to an external space through the slot. Its advantages are light weight, good planar structure and easy conformal to object. The aperture surface amplitude distribution of the slot antenna is easy to control, the aperture surface utilization rate is high, and low side lobes or extremely low side lobes can be realized; meanwhile, the slot antenna also has the advantages of firm structure, simplicity, compactness, easiness in processing, convenience in feeding, simplicity in erection and the like.

The embodiment of the utility model provides a do not restrict the feed mode of third 5G antenna 5, fourth 5G antenna 6, it can adopt the microstrip line (first microstrip line 15 and second microstrip line 16 in fig. 4) to carry out the feed, and when feeding with the microstrip line, microstrip line and microstrip paster are coplane, therefore can conveniently be photoetching together, and the preparation is simple and convenient. The third 5G antenna 5 corresponds to the first microstrip line 15, and the fourth 5G antenna 6 corresponds to the second microstrip line 16.

The first WLAN antenna 9 and the second WLAN antenna 10 may be slot antennas, and may be fed by microstrip lines (a third microstrip line 17 and a fourth microstrip line 18 in fig. 4). The first WLAN antenna 9 corresponds to the third microstrip line 17 and the second WLAN antenna 10 corresponds to the fourth microstrip line 18.

the GNSS antenna 11 is a high-precision positioning antenna. The embodiment of the utility model provides a do not restrict GNSS antenna 11's operating band, it can be dual-frenquency antenna, and operating band can include 1200 and give other charge of 1248MHz/1559 and 1610MHz, and operating band can cover GPS frequency channel, big dipper frequency channel, Glonass frequency channel, Galileo L1 and L2 frequency channel. The GPS frequency bands may include GPS L1, L2, and L5 frequency bands.

The GNSS antenna 11 may be a double-layer ceramic structure. This has the advantage that the antenna can support both the L1 and L2 frequency bands. Generally, the lower layer of the double-layer ceramic structure is in the L2 frequency band, and the upper layer is in the L1 frequency band.

The embodiment of the present invention does not limit the size of the GNSS antenna 11, and it may be 42mm x42mm x 10mm or other similar sizes.

The GNSS antenna 11 may adopt a dual-feed-point circular polarization mode or a single-feed-point circular polarization mode. The single-feed-point circular polarization mode has a simple structure, does not need orthogonal feed networks such as a power divider, a phase shifter and the like, and has the defect of narrow axial ratio bandwidth. The double-feed-point circular polarization mode can widen the circular polarization axial ratio bandwidth, but the feed network structure is complex.

If the first 5G antenna 3 is a broadband antenna at 1710-. Therefore, adding a first frequency division circuit within the first 5G antenna 3 can provide an input signal for one C-V2X antenna; the addition of a second frequency division circuit within the first 5G antenna 3 may provide an input signal to one of the WLAN antenna, the bluetooth antenna or the ZigBee antenna, since the operating frequency bands of the WLAN antenna, the bluetooth antenna or the ZigBee antenna are the same. This has the advantage that more C-V2X antennas, WLAN antennas, bluetooth antennas or ZigBee antennas can be integrated in the antenna arrangement according to the requirements of the actual application.

Similarly, if the second 5G antenna 4 is a broadband antenna at 1710-6000MHz, the working frequency band of the second 5G antenna 4 will cover the working frequency bands of the C-V2X antenna, the WLAN antenna, the bluetooth antenna, and the ZigBee antenna. The addition of a third frequency division circuit within the second 5G antenna 4 may provide an input signal to one of the C-V2X antennas, and the addition of a fourth frequency division circuit within the second 5G antenna 4 may provide an input signal to one of the WLAN antenna, the bluetooth antenna, or the ZigBee antenna.

If 2 5G antennas are broadband antennas at 1710-. There are 2 arbitrary antennas of the same type, and 2 antennas of different types.

Similarly, if there are k (k is a positive integer) 5G antennas that are broadband antennas at 1710-. Here, the arbitrary k antennas may be k antennas of the same type, or k antennas of different types.

The antenna device may be a thirteen-in-one antenna comprising: 4 5G antennas forming a 4x 45G antenna array; 4C-V2X antennas forming a 4x4C-V2X antenna array, wherein 2 antennas are single C-V2X antennas, and input signals of 2C-V2X antennas come from 5G antennas; 4WLAN antennas, which form a 4x4WLAN antenna array, wherein 2 WLAN antennas are independent, and input signals of the 2 WLAN antennas come from 5G antennas; 1 GNSS antenna. In order to reduce the cost, 2 separate WLAN antennas and 2C-V2X antennas can be eliminated, and the WLAN antenna and the C-V2X antenna can be provided with input signals in a form of a composite with a 5G antenna, so that 4 radio frequency connectors 2 and corresponding coaxial lines or coaxial patch cords can be omitted. At this time, the antenna device integrates 9 antennas.

in the 4C-V2X antennas of the thirteen-in-one antenna device, 1, 2, 3, 4C-V2X antennas can be eliminated according to the requirements in practical application, such as performance requirements and cost requirements, and accordingly, 12, 11, 10, 9 antennas are integrated into the antenna device.

Similarly, 1, 2, 3, 4WLAN antennas can be eliminated from the 4WLAN antennas of the thirteen-in-one antenna device, and accordingly, the antenna device will integrate 12, 11, 10, 9 antennas.

in order to reduce the cost and adapt to specific use environments, the number of the antennas can be correspondingly reduced, 1 to 8 of 4C-V2X antennas and 4WLAN antennas can be omitted from the thirteen-in-one antenna device, and correspondingly, the antenna device integrates 12, 11, 10, 9, 8, 7, 6 and 5 antennas into a twelve-in-one, eleven-in-one, ten-in-one, nine-in-one, eight-in-one, seven-in-one, six-in-one and five-in-one antenna device.

Fig. 5a to 5h are VSWR (Voltage standing wave Ratio) graphs of the first 5G antenna 3, the second 5G antenna 4, the third 5G antenna 5, the fourth 5G antenna 6, the first C-V2X antenna 7, the second C-V2X antenna 8, the first WLAN antenna 9, and the second WLAN antenna 10, respectively. The abscissa is the working frequency, the ordinate is VSWR, and m 1-m 8 correspond to different working frequencies.

As can be seen from fig. 5a to 5h, the design form in the embodiment of the present invention can realize that: the VSWR of the 5G antenna is less than 3.0 in the 5G frequency band, the VSWR of the WLAN antenna is less than 2.0 in the WLAN frequency band, and the VSWR of the C-V2X antenna is less than 2.0 in the C-V2X frequency band. The isolation between all antennas is greater than 10 dB.

it can be seen that the embodiment of the utility model provides a not only can be applied to the technical field of car networking, also can be applied to other thing networking fields, for example, house networking (intelligent community), medical networking etc. when practical application, can reduce or increase corresponding antenna according to specific environmental demand, cost demand. For example, when the positioning method is applied to a smart community, since the position of a cell or an office is substantially maintained, the GNSS antenna 11 for providing a high-precision positioning function can be reduced.

Detailed description of the invention

as shown in fig. 2, the embodiment of the present invention provides a nine-in-one antenna device, which includes a PCB module, and 9 antennas are disposed on the PCB module, including a first 5G antenna 3, a second 5G antenna 4, a third 5G antenna 5, a fourth 5G antenna 6, a first C-V2X antenna 7, a second C-V2X antenna 8, a first WLAN antenna 9, a second WLAN antenna 10, and a GNSS antenna 11.

The PCB module includes a PCB main board 12, a first PCB 13, and a second PCB 14, and the first PCB 13 and the second PCB 14 are respectively disposed at two ends of the PCB main board 12. The end of the first PCB 13 away from the PCB main board 12 is used as the first end, and the end of the second PCB 14 away from the PCB main board 12 is used as the second end. The PCB main board 12 is provided with a first side and a second side opposite to each other, and a connection line between the first side and the second side intersects with a connection line between the first end and the second end.

the first 5G antenna 3 is close to the first end and the second 5G antenna 4 is close to the second end. The third 5G antenna 5 is close to the first side and the fourth 5G antenna 6 is close to the second side. The first C-V2X antenna 7 and the second C-V2X antenna 8 are respectively located on two sides of the PCB main board 12, the first C-V2X antenna 7 is located on the same side as the second 5G antenna 4, and the second C-V2X antenna 8 is located on the same side as the first 5G antenna 3. A first WLAN antenna 9 is close to the first side and a second WLAN antenna 10 is close to the second side. The GNSS antenna 11 is disposed at a middle position of the PCB module.

the first 5G antenna 3 is located partly on the PCB main board 12 and partly on the first PCB board 13, and the second 5G antenna 4 is located partly on the PCB main board 12 and partly on the second PCB board 14. The third 5G antenna 5, the fourth 5G antenna 6, the first WLAN antenna 9 and the second WLAN antenna 10 are located on the PCB main board 12. The first C-V2X antenna 7 is located on the second PCB 14 and the second C-V2X antenna 8 is located on the first PCB 13. The GNSS antenna 11 is located on the PCB motherboard 12.

The first 5G antenna 3 can simultaneously support 2G, 3G and 4G LTE, and the working frequency band includes 824-.

The second 5G antenna 4 can simultaneously support 4G LTE compatibly, and the working frequency band includes 1710-.

The working frequency ranges of the third 5G antenna 5 and the fourth 5G antenna 6 include 3300-.

the working frequency ranges of the first C-V2X antenna 7 and the second C-V2X antenna 8 comprise 5850 and 5925 MHz.

The working frequency bands of the first WLAN antenna 9 and the second WLAN antenna 10 include 2.4-2.5 GHz.

The operation frequency band of the GNSS antenna 11 includes 1200-1248MHz/1559-1610 MHz.

The embodiment of the utility model discloses an antenna device, according to the demand in the in-service use, 5G antenna, C-V2X antenna, WLAN antenna integration are in an antenna device and have been designed 4 the locating place of 5G antenna, realize supporting 5G, C-V2X, the function of WLAN simultaneously, owing to adopt a combination antenna rather than a plurality of antennas, have reduced a plurality of antennas overall cost and installation cost, be convenient for find suitable mounted position; because the placing positions of the 4 5G antennas are designed, the isolation between the antennas is improved, and the condition that the antennas interfere with each other is avoided.

The utility model discloses from the use purpose, in efficiency, point of view such as progress and novelty explains, the practical progressive nature that it has accords with the function enhancement and the use essential that the patent law emphasizes, the above description and the attached drawing of the utility model only are the preferred embodiment of the utility model has, do not limit with this the utility model discloses, consequently, all with the utility model discloses the structure, device, characteristics etc. are similar, identical, all should belong to in accordance with the equivalent replacement or the modification etc. that the patent application scope of the utility model made promptly, all should belong to within the scope of the patent application protection of the utility model.

Claims

1. The antenna device is characterized by comprising a PCB module, wherein the PCB module is provided with a 5G antenna, a C-V2X antenna and a WLAN antenna; the number of the C-V2X antennas and the number of the WLAN antennas are respectively 1 or more;

2. The antenna device of claim 1, wherein the PCB module comprises a PCB main board, a first PCB board, a second PCB board; the first PCB board and the second PCB board are respectively arranged at two ends of the PCB main board;

3. the antenna device according to claim 1, wherein the operating frequency band of the first 5G antenna covers the operating frequency bands of 2G, 3G and 4G; and the working frequency band of the second 5G antenna covers the working frequency band of 4G.

4. The antenna device according to claim 1, characterized in that a capacitor is arranged at the feed point of the second 5G antenna.

5. The antenna device according to claim 1, wherein the third 5G antenna is a slot antenna fed by a microstrip line;

And/or the presence of a gas in the gas,

The fourth 5G antenna is a slot antenna fed by a microstrip line.

6. The antenna device according to claim 1, wherein the C-V2X antenna comprises a first C-V2X antenna and/or a second C-V2X antenna; the WLAN antenna comprises a first WLAN antenna and/or a second WLAN antenna;

7. the antenna device according to claim 1, wherein at least 1 of the WLAN antennas is a slot antenna fed with a microstrip line.

8. The antenna device as claimed in claim 1, wherein the intermediate position of the PCB module is further provided with a GNSS antenna.

9. The antenna device as claimed in claim 8, wherein the GNSS antenna is a dual-band antenna, and the operating band of the GNSS antenna covers GPS band, beidou band, Glonass band, galileo L1 and L2 band.

10. The antenna device of claim 8, wherein the GNSS antenna is a two-layer ceramic structure;