CN215451772U

CN215451772U - Be applied to integrated antenna module of 5G intelligent loader

Info

Publication number: CN215451772U
Application number: CN202122070897.3U
Authority: CN
Inventors: 刘学观; 柳倩
Original assignee: Suzhou University
Current assignee: Suzhou University
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-07
Anticipated expiration: 2031-08-31

Abstract

The application provides an integrated antenna module for 5G intelligence loader, it includes: the casing, dispose the cavity in the casing, the cavity is installed in the base with the integrated antenna module of holding, casing, integrated antenna module includes: the base plate, the middle part side configuration arch door type structure of decoupling, the first wireless module of base plate edge configuration and the second wireless module of the both sides of structure of decoupling, still dispose on the base plate, sixth wireless module and/or seventh wireless module, it is located between structure of decoupling and the first wireless module, the structure of decoupling includes: the top plate, at least 2 first branches and at least 2 second branches, the roof is connected respectively to one side of first branch and second branch, and the opposite side is fixed in the base plate respectively. The integrated antenna module is compact in structure, low coupling among all units of the integrated antenna is achieved by configuring a decoupling structure in the module, and the problems of the LTE +5G MIMO antenna and the coupling degree between the LTE +5G MIMO antenna and the 5G antenna are effectively reduced.

Description

Be applied to integrated antenna module of 5G intelligent loader

Technical Field

The application relates to the field of wireless communication, in particular to an integrated antenna module applied to a 5G intelligent loader.

Background

With the introduction of 5G technology, the realization of intelligent positioning, remote control and even communication of internal parts of the loader becomes a necessary choice for the next generation of loaders. The performance of the antenna serving as a terminal device for wireless communication plays a crucial role in the signal transmission quality of the whole system, and the antenna serving as a medium for information transmission cannot be separated in any communication mode, so that the antenna for the 5G intelligent loader needs to meet the requirements of 5G multi-frequency-band communication and wireless local area network communication in design, and can realize the functional requirements of high-precision positioning, FM (frequency modulation) broadcast signal receiving and the like. The combined design of multiple antennas is thus a problem that the 5G smart loader antenna must face. However, due to the limitations of space and carrier platforms, different functions, and the integration of a pair of antennas in different frequency bands to meet the communication requirement, the mutual coupling problem between the antennas is inevitably caused.

Therefore, how to realize the compactness and low coupling of the antenna to ensure the normal operation of each antenna becomes a necessary research problem. In recent years, researchers at home and abroad have proposed various measures for reducing the coupling degree among multiple antennas. The documents Y.Liu, Z.ai, G.Liu and Y.Jia.An Integrated Shark-Fin Antennas for MIMO-LTE, FM, and GPS Applications [ J ], IEEE Antennas and Wireless Transmission Letters,2019,18, (8):1666 and 1670] propose the design of integrating five Antenna units with different functions into one Antenna. The antenna system comprises an AM/FM antenna, a GPS positioning antenna, a 4G antenna and an SDARS antenna, and finally realizes the functions of radio broadcasting, positioning, communication and digital audio broadcasting. However, the system has the problem that due to space limitation, the distribution of the antennas is too dense, and mutual coupling between the antennas is serious. A Fin-shaped combined Antenna integrating LTE communication, WLAN & WAVE communication and GPS navigation positioning functions is designed in the document [ O.KWon, R.Song and B.Kim.A. full Integrated Shark-Fin Antenna for MIMO-LTE, GPS, WLAN, and WAVE Applications [ J ]. IEEE Antennas and Wireless navigation receivers, 2018,17(4):600 plus 603], and is mainly applied to an automobile communication scene. The antenna system is composed of two LTE antennas designed by planar inverted-F antennas, two WLAN antennas designed by monopole antennas and a GPS antenna designed by a microstrip antenna, can cover the working frequency ranges of 824-960MHz, 1575MHz, 2400-2500MHz and 5.9GHz, and is integrated in a fin-shaped antenna housing by means of reasonable layout. An Antenna system applied to an automobile communication scene is also designed in the document [ C.Demien and R.Sarkis.design of Shark Fin Integrated Antenna Systems for automatic Applications [ C ].2019 Photonic & electromagnetic Research Symposium-Spring (PIERS-Spring),2019:620-627], the system integrates the combined type of the Fin Antenna with the functions of LTE MIMO communication, V2V communication and GPS positioning, and finally all the antennas are Integrated into a Fin-shaped radome through optimized layout. In this method, since the operating wavelength required for the low-frequency part between the MIMO antennas is long, decoupling is far from sufficient only by optimizing the layout, and therefore, it is necessary to consider combining other decoupling measures.

Therefore, low coupling among the antenna units can be realized to meet the requirement of the antenna structure to be compact, and the method has very important practical significance for meeting the communication requirement of the next generation loader.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect point, the present application aims at: the low-coupling compact integrated antenna module is an integrated antenna module which can be applied to a 5G intelligent loader, the decoupling structure in the module is simple, and low coupling among all units of an integrated antenna can be realized so as to meet the compactness of an antenna structure.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides an integrated antenna module for 5G intelligence loader which characterized in that includes:

a housing, wherein a cavity is arranged in the housing, the cavity is used for accommodating the integrated antenna module, one side of the housing is arranged on the base,

the integrated antenna module includes:

a substrate, wherein an arch-shaped decoupling structure is arranged on the middle side of the substrate,

a first wireless module and a second wireless module disposed on the substrates at both sides of the decoupling structure,

a sixth wireless module and/or a seventh wireless module located on the substrate between the decoupling structure and the first wireless module,

the decoupling structure includes:

the top plate, at least 2 first branches and at least 2 second branches, one side of the first branch and one side of the second branch are respectively connected with the top plate, the other side of the first branch and the other side of the second branch are respectively fixed on the base plate, and the first branch is parallel to the second branch,

the sixth wireless module and the seventh wireless module are 5G modules. The integrated antenna module has a compact structure, and low coupling among all units of the integrated antenna can be realized by configuring a decoupling structure in the module. Through experimental verification, the structure effectively reduces the problem of the coupling degree between an LTE ((Long Term Evolution) +5G MIMO (multiple input multiple output) antenna and an LTE +5G MIMO antenna and a 5G antenna.

Preferably, a plurality of support rods are arranged on the side of the substrate opposite to the decoupling structure, and the support rods are fixedly connected to the base.

Preferably, the substrate and the base have a spacing, the spacing being between 3mm and 10mm.

Preferably, the base is provided with a stop bar which is relatively parallel to the base and a plurality of buckles which are positioned on the inner side of the stop bar, and the shell is fixed by the cooperation of the stop bar and the buckles.

Preferably, the decoupling structure comprises: 2 first branches and 2 second branches, and two second branches are located the inboard of two first branches.

Preferably, the interval between the adjacent first branch and second branch is the same as the interval between the two second branches.

Preferably, the two second branches and the two first branches are symmetrically arranged on a center line of the substrate in the y direction.

Preferably, the substrate has a rectangular shape, and the first wireless module and the second wireless module are disposed on the edge of the substrate on the short side in an opposing manner.

Preferably, the sixth wireless module and/or the seventh wireless module are disposed on the edge of the long side of the substrate,

and a third wireless module is configured on the side of the decoupling structure, which is far away from the first wireless module, the third wireless module is a GNSS antenna, and the interval between the third wireless module of the top plate and the decoupling junction is 8-12 mm.

Preferably, the base is disposed at a hole facing the third wireless module.

Advantageous effects

Compared with the prior art, the integrated antenna module applied to the 5G intelligent loader in the embodiment of the application. The structure effectively reduces the coupling degree between the LTE +5G MIIMO antenna and the LTE +5G antenna and the 5G antenna. Finally, a low-coupling compact integrated antenna module is realized.

Drawings

Fig. 1 is a schematic perspective view of an integrated antenna module according to an embodiment of the present application;

fig. 2 is an exploded view of an integrated antenna module according to an embodiment of the present application;

fig. 3 is a schematic diagram illustrating an internal structure of an integrated antenna module according to an embodiment of the present application;

FIG. 4 is a schematic view of a view of FIG. 3;

FIG. 5 is a schematic top view of FIG. 3;

fig. 6 is a schematic diagram of a simulation result of the isolation of two LTE +5G MIMO antennas by the decoupling structure according to the embodiment of the present application;

fig. 7 is a schematic diagram of a simulation result of the decoupling structure to the LTE +5G and 5G antenna isolation according to the embodiment of the present application.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions employed in the examples may be further adjusted as determined by the particular manufacturer, and the conditions not specified are typically those used in routine experimentation.

The application provides an integrated antenna module for 5G intelligent loader is provided in this application, and it includes: the casing, dispose the cavity in the casing, the cavity is installed in the base with the integrated antenna module of holding, casing, integrated antenna module includes: the base plate, the middle part side configuration arch door type structure of decoupling, the first wireless module of base plate edge configuration and the second wireless module of the both sides of structure of decoupling, still dispose on the base plate, sixth wireless module and/or seventh wireless module, it is located between structure of decoupling and the first wireless module, the structure of decoupling includes: the top plate, at least 2 first minor matters and at least 2 second minor matters, the roof is connected respectively to one side of first minor matters and second minor matters, and the opposite side is fixed in the base plate respectively, and wherein, sixth wireless module, seventh wireless module are the 5G module. The integrated antenna module is compact in structure, low coupling among all units of the integrated antenna is achieved by configuring a decoupling structure in the module, and the problems of the LTE +5G MIMO antenna and the coupling degree between the LTE +5G MIMO antenna and the 5G antenna are effectively reduced. .

The integrated antenna module applied to the 5G smart loader proposed in the present application will be described with reference to fig. 1 to 7.

the integrated antenna module 100 includes: a housing 110 and a base 120 installed at one side of the housing 110.

A cavity (not shown) is disposed in the housing, and the cavity is used for accommodating the integrated antenna module. One side of the shell is provided with an opening which is connected with the base.

Fig. 2 shows an exploded view of the integrated antenna module, and the integrated antenna module 130 is disposed in the housing 110.

The integrated antenna module proposed by the present application is described next with reference to fig. 3-5.

The integrated antenna module includes:

the substrate 131, one side of the substrate 131 is mounted on the mounting hole 121 of the base 120 through the support rod 131a, and a space is provided between the substrate 131 and the base 120. In this embodiment, the substrate 131 is rectangular, and support rods 131a are disposed at four corners of the substrate 131, and the support rods 131a are connected to the base 120 to fix the substrate. The first wireless module 132 (e.g., LTE +5G wireless module) and the second wireless module 133 (e.g., LTE +5G wireless module) are disposed on the short sides of the substrate.

The middle side of the substrate 131 is configured with a "ground arch" decoupling structure 134, the decoupling structure 134 is close to the first wireless module 132, and the decoupling structure 134 is configured to reduce the coupling of the antenna low frequency to achieve-15 dB isolation.

The decoupling structure 134 includes: a top plate 134c, and a plurality of first branches 134a and a plurality of second branches 134b, wherein one side of the plurality of first branches 134a and the plurality of second branches 134b is connected to the top plate 134c, and the other side is fixed on the substrate 131. In the present embodiment, two first branches 134a are arranged 2 inside second branches 134 b. The two second branches 134b and the two first branches 134a are symmetrically disposed along the y-direction centerline. The height of the first and

second branches

134a and 134b is 40mm, the width of the first branch 134ay is 5mm, and the interval between the two first branches 134a is 20 mm. The interval between the first branch 134a and the second branch 134b on one side is 20 mm. The length t2 of the decoupling structure 134 in the y-direction is 70 mm. In the present embodiment, the first branches 134a are parallel to the second branches 134b, and the first branches 134a and the second branches 134b are also parallel to each other.

The decoupling structure 134 is configured with a third wireless module 135 away from the first wireless module 132, and the third wireless module 135 is a GNSS antenna. The interval t1 between the top plate 134c and the third wireless module 135 is 8mm to 12 mm. In this embodiment, t1 is 10mm, and the fourth wireless module 136 may be disposed between the second wireless module 133 and the third wireless module 135, where the fourth wireless module 136 is an FM antenna. A fifth wireless module 138 and a sixth wireless module 137a (5G antenna) are disposed on one side of the fourth wireless module 136. The seventh wireless module 137b (5G antenna) is disposed on one side of the substrate 131. The structure solves the problem of low frequency part of the communication antenna, and the distance between the antenna units cannot be infinite so as to meet the requirement of isolation.

Thus, a "connected arch type" branch structure is extended from the substrate 131 (also called metal floor), a closed LOOP is formed in space, and the function of the closed LOOP can be equivalent to that of a LOOP isolated antenna, so that the coupling between the low frequencies of the communication antenna is reduced. The working principle of the antenna is as follows: by changing the geometry of the metal floor, a new resonance structure is added on the metal floor, which is equivalent to a notch structure, and the isolation between the antennas is improved by restraining the near-field radiation of the antennas to the other antenna port.

In one embodiment, an eighth wireless module 139 is further disposed on the substrate 131 and is disposed at an edge between the decoupling structure 134 of the substrate 131 and the first wireless module 132.

The base 120 is provided with a stop bar 124 and a plurality of fasteners 123 located inside the stop bar 124, which are parallel to each other, and the housing 110 is fixed by the cooperation of the stop bar 124 and the fasteners 123. The base 120 is provided with a hole 122, and the hole 122 faces the third wireless module 135 or substantially faces the third wireless module 135.

In this embodiment, the substrate 131 is spaced apart from the base 120. The spacing is between 3mm and 10mm.

Next, simulation results of the antenna module are described with reference to fig. 6 and 7.

Fig. 6 is a simulation of the effect of adding a "ground arch type" decoupling structure on the isolation between the antennas of the first and second wireless modules, i.e., the isolation effect when the decoupling structure is configured between two LTE +5G wireless modules.

Fig. 7 is a simulation of the effect of adding a "ground arch" decoupling structure on the isolation between the first and seventh radio modules 137b (5G-1) antennas.

It can be seen from the results of fig. 6 and 7 that, after the "arched" structure is added, the low frequency decoupling results between two LTE +5G (LTE +5GMIMO) antenna units and between LTE +5G and 5G-1 antenna units are improved, so that the communication antenna can meet the-15 dB requirements in the 5G full frequency band, i.e., 824-960MHz, 1710-2690MHz, 3300-3800MHz, 4400-5000 MHz.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an integrated antenna module for 5G intelligence loader which characterized in that includes:

the integrated antenna module includes:

the decoupling structure includes:

the sixth wireless module and the seventh wireless module are 5G modules.

2. The integrated antenna module applied to the 5G intelligent loader according to claim 1,

the side of the substrate, which is far away from the decoupling structure, is provided with a plurality of support rods, and the support rods are connected with the base.

3. The integrated antenna module applied to the 5G intelligent loader of claim 2,

the substrate and the base have a gap, and the gap is between 3mm and 10mm.

4. The integrated antenna module applied to the 5G intelligent loader according to claim 1,

the base is provided with stop bars which are relatively parallel and a plurality of buckles positioned on the inner sides of the stop bars, and the shell is fixed through the cooperation of the stop bars and the buckles.

5. The integrated antenna module applied to the 5G intelligent loader according to claim 1,

the decoupling structure includes: 2 first branches and 2 second branches, and two first branches are located the inboard of two second branches.

6. The integrated antenna module applied to the 5G intelligent loader of claim 5,

the interval between the adjacent first branch and the second branch is the same as the interval between the two second branches.

7. The integrated antenna module applied to the 5G intelligent loader of claim 5,

the two second branches and the two first branches are symmetrically arranged on the center line of the substrate along the y direction.

8. The integrated antenna module applied to the 5G intelligent loader according to claim 1,

the substrate is rectangular, and the first wireless module and the second wireless module are oppositely arranged on the edge of the short side of the substrate.

9. The integrated antenna module applied to the 5G smart loader of claim 8,

the sixth wireless module and/or the seventh wireless module are disposed on the edge of the long side of the substrate,

10. The integrated antenna module applied to the 5G smart loader of claim 9,

the base is disposed in a hole facing the third wireless module.