CN211789562U

CN211789562U - High gain array antenna

Info

Publication number: CN211789562U
Application number: CN202020833460.3U
Authority: CN
Inventors: 张友明; 丁先飞; 吕利军; 吴荣杰
Original assignee: Kunshan Mingzhong Electronic Technology Co ltd
Current assignee: Kunshan Mingzhong Electronic Technology Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-10-27
Anticipated expiration: 2030-05-19

Abstract

The utility model belongs to the technical field of the communication device and specifically relates to high-gain array antenna. The antenna comprises a substrate, wherein a first radiator 2.4G branch and a first radiator 5.0G branch are fixed on one plane of the substrate, a second radiator 2.4G branch and a second radiator 5.0G branch are fixed on the other plane of the substrate, the first radiator 2.4G branch and the second radiator 2.4G branch are coupled, the first radiator 5.0G branch and the second radiator 5.0G branch are coupled, and a feed point and a grounding part are arranged on the substrate. The utility model discloses use omnidirectional radiation's dual-frenquency array antenna, on the base plate tow sides, the radiation circuit is laid to the method of array arrangement and mirror image, accords with the trend that wireless communication device developed towards frivolous miniaturized direction, has improved the gain value of antenna and has reduced the surface area of base plate.

Description

High gain array antenna

Technical Field

The utility model belongs to the technical field of the communication device and specifically relates to high-gain array antenna.

Background

With the rapid development of wireless communication technology and information processing technology, radio waves are transmitted or received through wireless communication to transmit or exchange radio signals, so that the use of accessing a wireless network is more and more frequent.

The antenna is one of the important components in the wireless communication device, but is often one of the largest components in the area and size of the circuit module, and as the trend of lightness, thinness, shortness and smallness is emphasized more and more in the wireless communication product, the wireless size is also reduced continuously to meet the direction of product development. At present, a single-frequency antenna device is generally not easy to meet the requirements of people on a dual-frequency or multi-frequency-band wireless communication device, and an existing dual-frequency antenna is generally large in size, occupies a large part of space in the wireless communication device, and cannot meet the trend that the wireless communication device develops towards the direction of light weight and miniaturization.

In order to enable a Wireless Local Access Network (WLAN) device to receive signals with center frequencies of two frequency bands, namely 2.4GHz and 5.0GHz, a plurality of WLAN devices are installed with a plurality of antenna units to form an antenna array, thereby achieving a multi-input and multi-output function. Therefore, how to design an antenna structure having good antenna radiation characteristics, small size and multi-band transmission and reception, has been a long-standing problem in the industry.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem described in the background art, the present invention provides a high gain array antenna. The omnidirectional radiation dual-frequency array antenna is used, and radiation lines are laid on the front surface and the back surface of the substrate in an array arrangement and mirror image method, so that the trend of the development of a wireless communication device towards the direction of light weight and miniaturization is met, the gain value of the antenna is improved, and the surface area of the substrate is reduced.

The utility model provides a technical scheme that its technical problem adopted is:

a high-gain array antenna comprises a substrate, wherein a first radiator 2.4G branch and a first radiator 5.0G branch are fixed on one plane of the substrate, a second radiator 2.4G branch and a second radiator 5.0G branch are fixed on the other plane of the substrate, the first radiator 2.4G branch and the second radiator 2.4G branch are coupled, the first radiator 5.0G branch and the second radiator 5.0G branch are coupled, and a feeding point and a grounding part are arranged on the substrate.

Specifically, the first radiator 2.4G branch and the second radiator 2.4G branch are symmetrical to each other, and the first radiator 5.0G branch and the second radiator 5.0G branch are symmetrical to each other.

In particular, the feed point is connected to a coaxial cable by a center conductor.

Specifically, the grounding part is connected with the braid wrapped outside the coaxial cable.

Specifically, the substrate is an FR4 board.

The utility model has the advantages that: the utility model provides a high-gain array antenna. The omnidirectional radiation dual-frequency array antenna is used, and radiation lines are laid on the front surface and the back surface of the substrate in an array arrangement and mirror image method, so that the trend of the development of a wireless communication device towards the direction of light weight and miniaturization is met, the gain value of the antenna is improved, and the surface area of the substrate is reduced.

Drawings

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

Fig. 1 is a front view of the present invention;

fig. 2 is a rear view of the present invention;

in the figure, 1, a first radiator 2.4G branch, 2, a first radiator 5.0G branch, 3, a second radiator 2.4G branch, 4, a second radiator 5.0G branch, 5, a grounding part, 6, a feeding point, and 7, a substrate.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Fig. 1 is a front view of the present invention, and fig. 2 is a rear view of the present invention.

Referring to fig. 1 and 2, a high gain array antenna includes a substrate 7, a first radiator 2.4G branch 1 and a first radiator 5.0G branch 2 are fixed on one plane of the substrate 7, a second radiator 2.4G branch 3 and a second radiator 5.0G branch 4 are fixed on the other plane of the substrate 7, the first radiator 2.4G branch 1 and the second radiator 2.4G branch 3 are coupled, the first radiator 5.0G branch 2 and the second radiator 5.0G branch 4 are coupled, and a feeding point 6 and a grounding portion 5 are disposed on the substrate 7. The first radiator 2.4G branch 1 and the second radiator 2.4G branch 3 are symmetrical to each other, and the first radiator 5.0G branch 2 and the second radiator 5.0G branch 4 are symmetrical to each other. The feed point 6 is connected to the coaxial cable by a central conductor. The grounding part 5 is connected with the braided fabric wrapped outside the coaxial cable. The substrate 7 is an FR4 board for reflecting signals and enhancing the radiation capability of the array antenna. The coaxial cable feeds an electromagnetic wave signal to the radiation section through the substrate 7.

The first radiators 2.4G and 5.0

G branches

1 and 2 are distributed in an array arrangement on one plane of the substrate 7. The second radiator 2.4G branches 3 and the second radiator 5.0G branches 4 are distributed in an array arrangement on the other plane of the substrate 7.

This application both can satisfy and support two kinds of different frequency channels of 2.4GHz and 5.0GHz, can make antenna module have than little volume through the design of upper and lower array structure again, also can guarantee its effect of stably receiving and radiating signal, and the cooperation that equips with current communication is strong adaptability.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a high gain array antenna, includes base plate (7), characterized by, be fixed with first irradiator 2.4G branch (1) and first irradiator 5.0G branch (2) on a plane of base plate (7), be fixed with second irradiator 2.4G branch (3) and second irradiator 5.0G branch (4) on another plane of base plate (7), coupling between first irradiator 2.4G branch (1) and second irradiator 2.4G branch (3), coupling between first irradiator 5.0G branch (2) and second irradiator 5.0G branch (4), be equipped with feed point (6) and ground connection portion (5) on base plate (7).

2. The high gain array antenna of claim 1, wherein: the first radiator 2.4G branch (1) and the second radiator 2.4G branch (3) are symmetrical to each other, and the first radiator 5.0G branch (2) and the second radiator 5.0G branch (4) are symmetrical to each other.

3. The high gain array antenna of claim 1, wherein: the first radiator 2.4G branch (1) and the first radiator 5.0G branch (2) are arrayed on one plane of the substrate (7), and the second radiator 2.4G branch (3) and the second radiator 5.0G branch (4) are arrayed on the other plane of the substrate (7).

4. The high gain array antenna of claim 1, wherein: the feeding point (6) is connected with the coaxial cable through a central conductor.

5. The high gain array antenna of claim 1, wherein: the grounding part (5) is connected with the braided fabric wrapped outside the coaxial cable.

6. The high gain array antenna of claim 1, wherein: the substrate (7) is an FR4 board.