CN213278401U

CN213278401U - LTE MIMO and WIFI combined antenna

Info

Publication number: CN213278401U
Application number: CN202022301194.2U
Authority: CN
Inventors: 李文博; 吴云峰
Original assignee: Zhejiang Jinyichang Technology Co ltd
Current assignee: Zhejiang Jinyichang Technology Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-05-25
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses a LTE MIMO and WIFI combination antenna, including antenna upper cover, antenna lower cover, coaxial cable, connector, LTE MIMO antenna and WIFI antenna, the antenna upper cover is located the top of antenna lower cover and the antenna upper cover with antenna lower cover fixed connection, coaxial cable one end with the bottom fixed connection of antenna lower cover and coaxial cable keeps away from the one end of antenna lower cover with connector electric connection. The utility model discloses a LTE MIMO and WIFI combination antenna, it makes up LTE MIMO antenna and WIFI antenna, mainly in order to solve difficult problems such as miniaturization, isolation and antenna combination in the MIMO antenna design, and this antenna is applicable to scenes such as various external antenna demand terminals.

Description

LTE MIMO and WIFI combined antenna

Technical Field

The utility model belongs to the technical field of the combination antenna, concretely relates to LTE MIMO and WIFI combination antenna.

Background

With the development of communication technology, the MIMO (multiple Input multiple Output) technology of the LTE (long Term Evolution) system has been widely applied, but it brings a design problem to antenna design, the MIMO technology needs at least 2 or more antennas to be used, which results in that the area occupied by the antennas is at least increased to 2 times or more, the problem of isolation also exists, the antennas generally have a miniaturization requirement, which results in that the spacing between the antennas becomes small, the isolation becomes low, and the isolation needs at least 10dB, and the antennas can normally operate, and meanwhile, the situation of Multi-antenna combination needs to be faced.

SUMMERY OF THE UTILITY MODEL

A main object of the utility model is to provide a LTE MIMO and WIFI combined antenna, it makes up LTE MIMO antenna and WIFI antenna, mainly in order to solve difficult problems such as miniaturization, isolation and antenna combination in the MIMO antenna design, and this antenna is applicable to scenes such as various external antenna demand terminals.

Another object of the present invention is to provide a combined LTE MIMO and WIFI antenna, wherein the antenna uses two PCB substrates made of FR4 material, and the thickness of the two PCB substrates is different from each other, and the two PCB substrates keep a certain distance, so as to improve the isolation between the antennas to a certain extent; the LTE MIMO antenna adopts multi-branch slotted coupling and introduces external coupling technology, so that the miniaturization is kept, and meanwhile, the bandwidth is effectively expanded; the WIFI antenna adopts bottom feed and bottom grounding technology, and the whole structure of the PIFA antenna is adopted, so that external influence can be resisted to a certain extent, and the stable performance of the antenna is ensured.

Another object of the utility model is to provide a LTE MIMO and WIFI combination antenna realizes that LTE + WIFI communication frequency channel covers to the standing wave satisfies at the frequency channel and is less than or equal to 3.0.

In order to achieve the above object, the utility model provides a LTE MIMO and WIFI combination antenna, including antenna upper cover, antenna lower cover, coaxial cable, connector, LTE MIMO antenna and WIFI antenna, wherein:

the antenna upper cover is positioned above the antenna lower cover and is fixedly connected with the antenna lower cover, one end of the coaxial cable is fixedly connected with the bottom end of the antenna lower cover, and one end of the coaxial cable, far away from the antenna lower cover, is electrically connected with the connector;

the LTE MIMO antenna comprises a first PCB substrate, and the WIFI antenna comprises a second PCB substrate;

the first PCB substrate and the second PCB substrate are fixedly installed on the antenna lower cover, the first PCB substrate and the second PCB substrate are located between the antenna upper cover and the antenna lower cover, the first PCB substrate comprises a first radiation part (namely a main LTE MIMO antenna, a multi-branch slotting coupling technology is adopted), a second radiation part (namely an auxiliary LTE MIMO antenna, a multi-branch slotting coupling technology is adopted, and an external coupling technology is introduced), and a common ground radiation part (namely a main antenna and an auxiliary antenna of the LTE MIMO antenna use the same copper sheet as the ground, and simultaneously also serve as the radiation part, and a multi-branch slotting coupling technology is adopted, and an external coupling technology is introduced), wherein the common ground radiation part is electrically connected with the first radiation part and the second radiation part respectively, the second PCB substrate comprises a bottom feed end and a bottom grounding end, and the bottom feed end and the bottom grounding end penetrate through the second PCB substrate and are electrically connected to a top radiation end of the WIFI antenna And (5) shooting the surface.

As a further preferable technical solution of the above technical solution, the first radiation section includes a first feeding end, and the first radiation section is provided with a radiation slot.

As a further preferable technical solution of the above technical solution, the second radiation section includes a second feeding end and a first external coupling section, and the second radiation section is provided with a radiation slot.

As a further preferable mode of the above mode, the common ground radiation part includes a first ground terminal, a second ground terminal, and a second external coupling part.

As a further preferred technical solution of the above technical solution, the LTE MIMO antenna (adopting a common ground, introducing external coupling, dipole-like multi-branch radiation structure, the LTE MIMO antenna adopting a coaxial cable feed, and the primary and secondary antennas adopting a common ground coupling technology) and the WIFI antenna (adopting a PIFA structure, and the feed being a bottom feed mode through a copper-clad via hole) are not coplanar (the isolation is improved to a certain extent, the mutual interference is reduced, and the requirement of the radiation of the required frequency band can be met by adjusting each radiation and branch part because the double-sided PCB substrate has a large space).

As a further preferable technical solution of the above technical solution, the first PCB substrate has a thickness of 0.8 to 1.2mm, and the second PCB substrate has a thickness of 8 to 10 mm.

Drawings

Fig. 1 is the utility model discloses a structural schematic diagram of LTE MIMO and WIFI combination antenna.

Fig. 2 is the utility model discloses a structural schematic diagram of LTE MIMO and WIFI combined antenna (hide the antenna upper cover).

Fig. 3 is the utility model discloses a structural schematic diagram (inner structure) of LTE MIMO and WIFI combined antenna.

The reference numerals include: 100. an antenna upper cover; 200. an antenna lower cover; 300. a coaxial cable; 400. a connector; 500. a first PCB substrate; 510. a first radiation section; 511. a first feed end; 520. a second radiation section; 521. a second feed end; 522. a first external coupling section; 530. a common ground radiation section; 531. a first ground terminal; 532. a second ground terminal; 533. a second external coupling portion; 600. a second PCB substrate; 610. a bottom feed end; 620. and the bottom is grounded.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

The utility model discloses a LTE MIMO and WIFI combination antenna combines preferred embodiment below, makes further description to utility model's concrete embodiment.

Referring to fig. 1 of the drawings, fig. 1 is a structural schematic diagram of an LTE MIMO and WIFI combined antenna of the present invention, fig. 2 is a structural schematic diagram of an LTE MIMO and WIFI combined antenna (antenna upper cover is hidden), fig. 3 is a structural schematic diagram (internal structure) of an LTE MIMO and WIFI combined antenna of the present invention.

In the embodiments of the present invention, those skilled in the art will note that the top radiating surface, coaxial cable, connector, and the like to which the present invention relates may be regarded as the prior art.

PREFERRED EMBODIMENTS

The utility model discloses a LTE MIMO and WIFI combination antenna, including antenna upper cover 100, antenna lower cover 200, coaxial cable 300, connector 400, LTE MIMO antenna (not shown) and WIFI antenna (not shown), wherein:

the antenna upper cover 100 is located above the antenna lower cover 200 and the antenna upper cover 100 is fixedly connected with the antenna lower cover 200, one end of the coaxial cable 300 is fixedly connected with the bottom end of the antenna lower cover 200 and one end of the coaxial cable 300 away from the antenna lower cover 200 is electrically connected with the connector 400;

the LTE MIMO antenna comprises a first PCB substrate 500, and the WIFI antenna comprises a second PCB substrate 600;

the first PCB substrate 500 and the second PCB substrate 600 are both fixedly mounted on the antenna lower cover 200 and the first PCB substrate 500 and the second PCB substrate 600 are both located between the antenna upper cover 100 and the antenna lower cover 200, the first PCB substrate 500 includes a first radiation part 510 (i.e. a main antenna of the LTE MIMO antenna, which adopts a multi-branch slotted coupling technique), a second radiation part 520 (i.e. a sub-antenna of the LTE MIMO antenna, which adopts a multi-branch slotted coupling technique and introduces an external coupling technique), and a common ground radiation part 530 (i.e. a main antenna and a sub-antenna of the LTE MIMO antenna use the same copper sheet as ground and also as radiation parts, which adopt a multi-branch slotted coupling technique and introduces an external coupling technique), the common ground radiation part 530 is electrically connected with the first radiation part 510 and the second radiation part 520, respectively, the second PCB substrate 600 includes a feed bottom feed end 610 and a bottom ground end 620, the bottom feeding terminal 610 and the bottom grounding terminal 620 both penetrate through the second PCB substrate 600 and are electrically connected to the top radiating surface (not shown) of the WIFI antenna.

Specifically, the first radiation portion 510 includes a first feeding end 511, and the first radiation portion 510 is provided with a radiation slot.

More specifically, the second radiation part 520 includes a second feeding end 521 and a first external coupling part 522, and the second radiation part 520 is provided with a radiation slot.

Further, the common ground radiation part 530 includes a first ground 531, a second ground 532 and a second external coupling part 533.

Furthermore, the LTE MIMO antenna (adopting a common ground, introducing external coupling and dipole-like multi-branch radiation structure, the LTE MIMO antenna adopting a coaxial cable feed and a main and auxiliary antenna adopting a common ground coupling technology) and the WIFI antenna (adopting a PIFA structure and feeding in a bottom feed mode through copper-clad through holes) are not coplanar (the isolation is improved to a certain degree, the mutual interference is reduced, and the requirement of required frequency band radiation can be met by adjusting each radiation and branch part due to the large space of the double-sided PCB substrate).

Preferably, the thickness of the first PCB substrate 500 is 0.8-1.2mm, and the thickness of the second PCB substrate 600 is 8-10 mm.

It is worth mentioning that the technical features such as the top radiation surface, the coaxial cable and the connector that the utility model discloses the patent application relates to should be regarded as prior art, and the concrete structure, the theory of operation and the control mode that may involve, the spatial arrangement mode of these technical features adopt the conventional selection in this field can, should not be regarded as the invention point of the utility model is in, the utility model discloses a do not do further specifically expand the detailed description.

It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a LTE MIMO and WIFI combination antenna, its characterized in that includes antenna upper cover, antenna lower cover, coaxial cable, connector, LTE MIMO antenna and WIFI antenna, wherein:

the first PCB substrate and the second PCB substrate are fixedly installed on the antenna lower cover, the first PCB substrate and the second PCB substrate are located between the antenna upper cover and the antenna lower cover, the first PCB substrate comprises a first radiation part, a second radiation part and a common ground radiation part, the common ground radiation part is electrically connected with the first radiation part and the second radiation part respectively, the second PCB substrate comprises a bottom feed end and a bottom grounding end, and the bottom feed end and the bottom grounding end penetrate through the second PCB substrate and are electrically connected to the top radiation surface of the WIFI antenna.

2. The combined LTE MIMO and WIFI antenna according to claim 1, wherein the first radiating part comprises a first feeding end, and the first radiating part is provided with a radiating slot.

3. An LTE MIMO and WIFI combined antenna according to claim 2, wherein said second radiating section comprises a second feeding end and a first external coupling section, said second radiating section being provided with a radiating slot.

4. A combined LTE MIMO and WIFI antenna according to claim 3, wherein said common ground radiating portion comprises a first ground terminal, a second ground terminal and a second external coupling portion.

5. A combined LTE MIMO and WIFI antenna according to claim 4, wherein the LTE MIMO antenna and the WIFI antenna are not coplanar.

6. The combined LTE MIMO and WIFI antenna according to claim 5, wherein the first PCB substrate has a thickness of 0.8-1.2mm and the second PCB substrate has a thickness of 8-10 mm.