CN107946747B - Double WIFI MIMO antenna and all-metal notebook adopting same - Google Patents
Double WIFI MIMO antenna and all-metal notebook adopting same Download PDFInfo
- Publication number
- CN107946747B CN107946747B CN201711229012.1A CN201711229012A CN107946747B CN 107946747 B CN107946747 B CN 107946747B CN 201711229012 A CN201711229012 A CN 201711229012A CN 107946747 B CN107946747 B CN 107946747B
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- branch
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- back cover
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
- H01Q1/2266—Supports; Mounting means by structural association with other equipment or articles used with computer equipment disposed inside the computer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
Abstract
The invention provides a double WIFI MIMO antenna, which comprises an antenna bracket arranged on a metal back cover, wherein two antennas are arranged on the antenna bracket and are composed of a long branch, a first short branch and a second short branch, the first short branch is positioned between the long branch and the second short branch, and a gap is formed between the second short branch and the first short branch; one end of the long branch is in contact with the metal back cover, the other end of the long branch is connected with one end of the first short branch, a feeding point is arranged at the joint of the first short branch and the long branch, and the other end of the first short branch is positioned between the long branch and the metal back cover; and a feed point is arranged on the second short branch at a position corresponding to the feed point. The antenna provided by the invention meets the requirements of WIFI2.4G and WIFI5G frequency band performances on an all-metal notebook, increases the throughput of the WIFI antenna, and improves the transmission rate. Compared with the prior art, the antenna is extremely simple in wiring, simple and easy to realize in scheme and high in practicability.
Description
Technical Field
The invention relates to antennas, in particular to a dual WIFI MIMO antenna and an all-metal notebook computer with the dual WIFI MIMO antenna.
Background
With the rapid development of wireless communication technology, the present technology has come into the era of interconnection and interworking, and although mobile phones and tablet computers are popular, notebook computers are the first choice for office and entertainment of many people.
In order to pursue user experience, the common plastic shell notebook gradually meets the time demand, and the all-metal notebook gives people strong visual and hand feeling experience by virtue of the unique metal texture and a large screen, so that the all-metal notebook is more and more popular among the masses. However, the metal material can cause huge absorption to antenna radiation, so that the user surfing experience is affected. The traditional single WIFI2.4GHz antenna scheme is difficult to meet the current network requirements, so that the application of the WIFI2.4GHz/5GHz dual-band WIFI MIMO antenna has become the mainstream configuration of all-metal notebooks on the market.
Disclosure of Invention
Therefore, the invention aims to provide the double WIFI MIMO antenna capable of improving the user surfing experience.
The aim of the invention is achieved by the following technical scheme.
The double WIFI MIMO antenna comprises an antenna bracket arranged on a metal back cover, wherein two antennas are arranged on the antenna bracket, each of the two antennas is composed of a long branch, a first short branch and a second short branch, the first short branch is positioned between the long branch and the second short branch, and a gap is formed between the second short branch and the first short branch; one end of the long branch is in contact with the metal back cover, the other end of the long branch is connected with one end of the first short branch, a feeding point is arranged at the joint of the first short branch and the long branch, and the other end of the first short branch is positioned between the long branch and the metal back cover; and a feed point is arranged on the second short branch at a position corresponding to the feed point.
Preferably, the feeding point is used as the center, and a loop formed by connecting the long branch and the metal back cover can correspondingly generate high-frequency resonance for realizing 2400-2500 MHz frequency band so as to cover WIFI 2.4G.
Preferably, the feeding point is used as a center, and after passing through the first short branch, the current correspondingly generates high-frequency resonance in the 5150-5850 MHz frequency band so as to cover the WIFI 5G.
Preferably, the second short branch is connected to a metal cover plate through a feed point, and is used for adjusting the impedance of the frequency bands required by WIFI2.4G and WIFI 5G.
Preferably, the metal cover plate is positioned on the metal keyboard.
Preferably, the antenna support is made of plastic, the height between the upper surface of the antenna support and the metal back cover is 2.0mm, and the distance between the side surface of the antenna support and the metal back cover is 3.0mm.
In addition, the invention also provides an all-metal notebook computer with the double WIFI MIMO antennas, which comprises a screen metal back cover and a host metal shell, wherein the screen metal back cover and the host metal shell are connected through a rotating shaft, and the double WIFI MIMO antennas are correspondingly arranged in the rotating shaft.
The antenna provided by the invention uses the metal casing as an antenna return point, the metal casing is changed into a part of the antenna radiator, and the antenna can be combined into the MIMO antenna, so that the requirements of WIFI2.4G and WIFI5G frequency band performances are met on an all-metal notebook, the throughput of the WIFI antenna is increased, and the transmission rate is improved. Compared with the prior art, the antenna is extremely simple in wiring, simple and easy to realize in scheme and high in practicability.
Drawings
Fig. 1 is a schematic structural diagram of a dual WIFI MIMO antenna of the present invention;
fig. 2 is a schematic diagram of a WIFI MIMO antenna model of an all-metal notebook computer according to the present invention;
fig. 3 is a second schematic diagram of a WIFI MIMO antenna model of an all-metal notebook computer according to the present invention;
fig. 4 is a graph of an actual debug S11 of one of the dual WIFI MIMO antennas of the present invention;
fig. 5 is a graph of an actual debug S11 of another antenna in the dual WIFI MIMO antenna of the present invention;
fig. 6 is a graph of efficiency data of a dual WIFI MIMO antenna of the present invention.
The figure identifies the description: the antenna comprises a feed point 1 (F), a feed point 2 (G), a long branch 3, a second short branch 4, a first short branch 5, a metal back cover 6, an antenna bracket 7 and a host metal shell 8.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a dual WIFI MIMO antenna according to the present invention. The embodiment provides a dual-WIFI MIMO antenna, which comprises an antenna bracket 7, wherein the antenna bracket 7 is correspondingly installed on the side edge of a metal back cover 6, and the inner wall of the metal back cover 6 is correspondingly installed with an antenna main board.
In this embodiment, physical simulation was performed, in which the antenna motherboard uses a double-layer via PCB board, and the size thereof corresponds to 355mm by 230mm by 1mm, and the substrate is FR4 (epsilon=4.3δ=0.024).
In this embodiment, the antenna support is made of plastic, the height between the upper surface of the antenna support and the metal back cover is 2.0mm, and the distance between the side surface of the antenna support and the metal back cover is 3.0mm.
Two antennas (antenna one and antenna two, see fig. 3) are provided on the antenna support 7, which are identical and are each constituted by a long branch 3, a first short branch 5 and a second short branch 4.
The first short branch 5 is located between the long branch 3 and the second short branch 4, and a gap is formed between the second short branch 4 and the first short branch 5.
One end of the long branch 3 is contacted with the metal back cover 6, the other end is connected with one end of the first short branch 5, and a feeding point 1 (F) is arranged at the joint of the first short branch 5 and the long branch 3.
The other end of the first short branch 5 is positioned between the long branch 3 and the metal back cover; and a feed point 2 (G) is arranged on the second short branch 4 at a position corresponding to the feed point 1 (F).
In this embodiment, the feeding point 1 (F) is used as the center, and a loop formed by connecting the current through the long branch 3 and the metal back cover 6 can correspondingly generate a high-frequency resonance for realizing 2400-2500 MHz frequency band to cover WIFI 2.4G.
In this embodiment, the feeding point 1 (F) is taken as the center, and after the current passes through the first short branch 5, a high-frequency resonance in the 5150-5850 MHz frequency band is correspondingly generated to cover the WIFI 5G.
The second short branch 4 is connected to a metal cover plate 8 through a feed point, and is used for adjusting the impedance of the frequency bands required by WIFI2.4G and WIFI5G (see fig. 2).
According to the invention, the same antenna principle is utilized, the first antenna and the second antenna realize WIFI2.4G and WIFI5G dual-band, and the WIFI MIMO antenna function is realized.
Fig. 4 is a graph of an actual debug S11 of one of the dual WIFI MIMO antennas of the present invention; fig. 5 is a graph of an actual debug S11 of another antenna in the dual WIFI MIMO antenna of the present invention; in actual debugging, the return loss of the antenna meets the design requirement.
Fig. 6 is a graph of efficiency data of a dual WIFI MIMO antenna of the present invention.
The invention also provides an all-metal notebook computer with the double WIFI MIMO antennas, which comprises a screen metal back cover 6 and a host metal shell 8, wherein the screen metal back cover 6 and the host metal shell 8 are connected through a rotating shaft, and an antenna bracket 7 with the double WIFI MIMO antennas is correspondingly arranged in the rotating shaft.
The dual WIFI MIMO antenna designed by the invention can be applied to all-metal notebook computers. Compared with the traditional scheme, the invention realizes that the requirements of the WIFI2.4 (2.4 GHz-2.5 GHz) and the WIFI5G (5.15 GHz-5.85 GHz) frequency bands are met in an all-metal environment under the conditions that the length of the antenna is not lengthened and the space volume of the antenna is not increased, and can also meet the protocol requirements of the WIFI a/b/G/n.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The double WIFI MIMO antenna is characterized by comprising an antenna bracket arranged on a metal back cover, wherein two antennas are arranged on the antenna bracket and are composed of a long branch, a first short branch and a second short branch, the first short branch is positioned between the long branch and the second short branch, and a gap is formed between the second short branch and the first short branch; one end of the long branch is in contact with the metal back cover, the other end of the long branch is connected with one end of the first short branch, a feeding point is arranged at the joint of the first short branch and the long branch, and the other end of the first short branch is positioned between the long branch and the metal back cover; and a feed point is arranged on the second short branch at a position corresponding to the feed point.
2. The dual WIFI MIMO antenna of claim 1, wherein the feeding point is a center, and the loop formed by connecting the long branch and the metal back cover can correspondingly generate a high frequency resonance to achieve 2400-2500 MHz frequency band to cover WIFI 2.4G.
3. The dual WIFI MIMO antenna of claim 2 wherein the feed point is centered, and the current passes through the first short stub to correspondingly generate a high frequency resonance in the 5150-5850 MHz band to cover WIFI 5G.
4. The dual WIFI MIMO antenna of claim 3 wherein said second short stub is connected to a metal cover plate through a feed point for adjusting the impedance of the frequency bands required for WIFI2.4G and WIFI 5G.
5. The dual WIFI MIMO antenna of claim 4 wherein the metal cover plate is a metal keyboard.
6. The dual WIFI MIMO antenna of claim 1 wherein said antenna mount is plastic with an upper surface 2.0mm high from said metal back cover and a side surface 3.0mm away from said metal back cover.
7. An all-metal notebook computer is characterized by comprising a metal back cover and a host metal shell, wherein the metal back cover and the host metal shell are connected through a rotating shaft, and the dual WIFI MIMO antenna according to any one of claims 1-6 is correspondingly arranged in the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711229012.1A CN107946747B (en) | 2017-11-29 | 2017-11-29 | Double WIFI MIMO antenna and all-metal notebook adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711229012.1A CN107946747B (en) | 2017-11-29 | 2017-11-29 | Double WIFI MIMO antenna and all-metal notebook adopting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107946747A CN107946747A (en) | 2018-04-20 |
| CN107946747B true CN107946747B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711229012.1A Active CN107946747B (en) | 2017-11-29 | 2017-11-29 | Double WIFI MIMO antenna and all-metal notebook adopting same |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066056B (en) * | 2018-08-01 | 2021-02-09 | Oppo广东移动通信有限公司 | Antenna assembly and electronic equipment |
| CN109103597A (en) * | 2018-08-03 | 2018-12-28 | 瑞声精密制造科技(常州)有限公司 | Multiaerial system and mobile terminal |
| CN109066104B (en) * | 2018-08-14 | 2023-12-19 | 深圳市信维通信股份有限公司 | Antenna for mobile terminal Sub-6G |
| CN112490624B (en) * | 2020-11-23 | 2024-01-09 | 昆山睿翔讯通通信技术有限公司 | WiFi antenna and mobile terminal |
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| CN107946747A (en) | 2018-04-20 |
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