CN211404735U

CN211404735U - High-efficient dual-frenquency WIFI antenna

Info

Publication number: CN211404735U
Application number: CN202020155729.7U
Authority: CN
Inventors: 杨利华
Original assignee: Chuwi Innovation And Technology Shenzhen Co ltd
Current assignee: Chuwi Innovation And Technology Shenzhen Co ltd
Priority date: 2020-02-08
Filing date: 2020-02-08
Publication date: 2020-09-01
Anticipated expiration: 2030-02-08

Abstract

The utility model discloses a high-efficient dual-frenquency WIFI antenna, its characterized in that sets up a sub dual-frenquency antenna at the turning edge of panel computer, and sub dual-frenquency antenna includes first radiation arm, second radiation arm, first matching circuit and the second matching circuit of all printing on the PCB board; the first radiation arm forms a 2.4G resonance arm, and the second radiation arm forms a 5G resonance arm; the first radiation arm comprises two first sub-resonance arms which are vertical to each other, and the second radiation arm comprises two second sub-resonance arms which are vertical to each other; the two first sub-resonance arms are connected with the two first sub-resonance arms at the corner positions through the balance microstrip line, and the metal shell of the tablet personal computer above the first radiation arm and the second radiation arm is hollowed out and covered with a non-metal protection and decoration layer. Two mutually perpendicular dual-frequency antenna groups are arranged at the edge of a display screen of the tablet personal computer, so that the complementation in the horizontal direction and the complementation in the vertical direction are realized, the strong signal connection of WIFI hot spots at any angle is realized, and the high-speed stable data transmission is realized.

Description

High-efficient dual-frenquency WIFI antenna

Technical Field

The utility model relates to a panel computer WIFI technical field especially relates to a be suitable for high-efficient dual-frenquency WIFI antenna that panel computer used.

Background

With the improvement of the performance of the tablet computer, the tablet computer can realize the basic functions of a common notebook computer and the functions of an IPAD, so that the tablet computer is widely used by users. And the external network connection is mostly performed through WIFI, and the demand for the WIFI connection rate is also increased year by year. The existing WIFI standard has two frequency bands of 2.4G and 5G, and a WIFI route also generally supports double frequency. The 2.4G band is characterized by a slightly higher interference immunity but a relatively lower rate, while the 5G band is characterized by the opposite, a less interference immunity but a relatively higher rate. Therefore, when the dual-frequency is actually supported, intelligent selection can be carried out according to the current network state, so that high-speed and stable communication can be realized. Therefore, the antenna requiring WIFI also needs to support 2.4G and 5G at the same time, and the conventional design is to design 2 antennas, one supporting 2.4G and one supporting 5G respectively. The tablet computer generally adopts metal casing, and all is very frivolous structural design, therefore leaves the space of placing and the position of WIFI antenna very limited for, if will place two antennas and will be very difficult, need occupy more spaces, be unfavorable for whole product design.

SUMMERY OF THE UTILITY MODEL

The utility model aims to improve the WIFI radiation performance of panel computer, reduce the influence that receives the direction.

In order to solve the above problems, the utility model provides a high-efficient dual-band WIFI antenna, which is characterized in that a sub-dual-band antenna is arranged at the corner edge of a tablet computer, and the sub-dual-band antenna comprises a first radiation arm, a second radiation arm, a first matching circuit and a second matching circuit which are all printed on a PCB; the first radiation arm forms a 2.4G resonance arm, and the second radiation arm forms a 5G resonance arm; the first radiation arm comprises two first sub-resonance arms which are vertical to each other and are respectively arranged on two sides of one corner of the tablet computer, and the second radiation arm comprises two second sub-resonance arms which are vertical to each other and are respectively arranged on two sides of one corner of the tablet computer; the two first sub-resonance arms are connected with the two first sub-resonance arms at the corners through the balance microstrip lines, and the metal shell of the tablet personal computer above the first radiation arm and the second radiation arm is hollowed out and covered with a non-metal protection and decoration layer.

The high-efficiency dual-frequency WIFI antenna is characterized in that the first radiating arm and the second radiating arm have a common feed.

The high-efficiency dual-frequency WIFI antenna is characterized in that a first sub-resonance arm and a second sub-resonance arm which are arranged on the same side are parallel to each other.

The efficient dual-frequency WIFI antenna is characterized in that a matching microstrip node is further arranged at the common connecting end of the first sub-resonance arm and the second sub-resonance arm on the same side.

The efficient dual-frequency WIFI antenna is characterized in that the distance between the first sub-resonance arm and the second sub-resonance arm on the same side is 0.7-1.2 times of the maximum resonance wavelength.

The efficient dual-frequency WIFI antenna is characterized in that two sub dual-frequency antennas are symmetrically arranged at the upper left corner and the upper right corner of the tablet computer respectively.

The utility model has the advantages that: two mutually perpendicular dual-frequency antenna groups are arranged at the corners of the edge of the display screen of the tablet personal computer, so that the complementation in the horizontal direction and the vertical direction is realized, strong signal connection to WIFI hot spots at any angle is realized, and high-speed and stable data transmission is further realized.

Drawings

Fig. 1 is a schematic diagram of a high-efficiency dual-frequency WIFI antenna.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Compared with a notebook computer, the tablet computer is lighter and smaller, and can meet the entertainment requirements of common consumers. However, in order to pursue the compact appearance of the tablet personal computer, the number of interfaces on the tablet personal computer is very small, and external communication mainly depends on WIFI and bluetooth, so the performance of the WIFI antenna is very critical to the tablet personal computer. Actually, the WIFI performance finally realized at the user end depends on the performance of the WIFI antenna of the tablet computer and the WIFI antenna of the router to which the tablet computer is to access, and also depends on the distance and the position relationship between the tablet computer and the router, so that the radiation envelope of the WIFI antenna of the router has certain directivity. When the tablet personal computer is actually used, the position of a user cannot be adjusted due to the limitation of various conditions, and therefore the adaptability of the WIFI antenna to the direction is only improved.

Fig. 1 is a schematic diagram of a high-efficiency dual-frequency WIFI antenna, which is an improvement provided for the problem and the demand, and the problem is solved by designing a dual-frequency WIFI antenna having high-performance radiation intensity in both vertical and horizontal directions, specifically, an onboard WIFI antenna, which combines the structural features of a tablet computer, without additionally increasing the structural size of the tablet computer, and further possibly reducing the size of the tablet computer WIFI antenna, and a sub-dual-frequency antenna is arranged at a corner edge of the tablet computer, and the sub-dual-frequency antenna includes a first radiation arm, a second radiation arm, a first matching circuit 11 and a second matching circuit 12, which are all printed on a PCB board; the first radiation arm forms a 2.4G resonance arm, and the second radiation arm forms a 5G resonance arm; the first radiation arm comprises two first sub-resonance arms 21 which are vertical to each other and are respectively arranged on two sides of one corner of the tablet computer, and the second radiation arm comprises two second sub-resonance arms 22 which are vertical to each other and are respectively arranged on two sides of one corner of the tablet computer; the two first sub-resonance arms are connected with the two first sub-resonance arms at the corner positions through the balance microstrip line 32, the middle part of the balance microstrip line 32 is provided with a signal access point 31, signals are accessed from the signal access point 31, and the metal shell of the tablet personal computer above the first radiation arm and the second radiation arm is hollowed out and covered with a non-metal protection and decoration layer. The first and second radiating arms are far away from the metal component as much as possible, and the distances between the two perpendicular second sub-resonator arms 22 and the two perpendicular first sub-resonator arms 21 can be adjusted to be large by adjusting the microstrip balance line 32, so that the mutual interference is reduced as much as possible with a sufficient clearance area, and the first and second radiating arms have a common feed. The first sub-resonance arm and the second sub-resonance arm which are arranged on the same side are parallel to each other, and the distance between the first sub-resonance arm and the second sub-resonance arm is 0.7-1.2 times of the maximum resonance wavelength.

And a matching microstrip node is also arranged at the common connecting end of the first sub-resonance arm and the second sub-resonance arm on the same side and is used for adjusting the matching of the circuits. The method is used for eliminating the difference of different plates, and is favorable for ensuring the consistency of products.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A high-efficiency dual-frequency WIFI antenna is characterized in that a sub-dual-frequency antenna is arranged at the corner edge of a tablet personal computer, and the sub-dual-frequency antenna comprises a first radiation arm, a second radiation arm, a first matching circuit and a second matching circuit which are all printed on a PCB (printed Circuit Board); the first radiation arm forms a 2.4G resonance arm, and the second radiation arm forms a 5G resonance arm; the first radiation arm comprises two first sub-resonance arms which are vertical to each other and are respectively arranged on two sides of one corner of the tablet computer, and the second radiation arm comprises two second sub-resonance arms which are vertical to each other and are respectively arranged on two sides of one corner of the tablet computer; the two first sub-resonance arms are connected with the two first sub-resonance arms at the corners through the balance microstrip lines, and the metal shell of the tablet personal computer above the first radiation arm and the second radiation arm is hollowed out and covered with a non-metal protection and decoration layer.

2. The high-efficiency dual-band WIFI antenna of claim 1, wherein the first radiating arm and the second radiating arm have a common feed.

3. A high-efficiency dual-band WIFI antenna as claimed in claim 2 wherein the first and second sub-resonating arms disposed on the same side are parallel to each other.

4. The high-efficiency dual-frequency WIFI antenna according to claim 3, wherein a matching microstrip node is further arranged at a common connection end of the first sub-resonance arm and the second sub-resonance arm on the same side.

5. The high-efficiency dual-frequency WIFI antenna according to claim 4, wherein the distance between the first sub-resonant arm and the second sub-resonant arm on the same side is 0.7-1.2 times of the maximum resonant wavelength.

6. The efficient dual-frequency WIFI antenna of claim 2, wherein two sub dual-frequency antennas are symmetrically arranged at the upper left corner and the upper right corner of the tablet computer respectively.