CN206541932U - A kind of double frequency mimo antenna suitable for WLAN - Google Patents
A kind of double frequency mimo antenna suitable for WLAN Download PDFInfo
- Publication number
- CN206541932U CN206541932U CN201720106630.6U CN201720106630U CN206541932U CN 206541932 U CN206541932 U CN 206541932U CN 201720106630 U CN201720106630 U CN 201720106630U CN 206541932 U CN206541932 U CN 206541932U
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- CN
- China
- Prior art keywords
- medium substrate
- microstrip line
- wlan
- rectangular
- double frequency
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Abstract
The utility model discloses a kind of double frequency mimo antenna structure suitable for WLAN, including medium substrate, described medium substrate upper surface is printed with two antenna element units, two microstrip feed lines, and described medium substrate lower surface is printed with metal ground plate and T-shaped microstrip line；Two described antenna element cellular constructions are caused with size uniformity, and quadrature arrangement is in described medium substrate upper surface；Described metal ground plate is that two pieces of rectangular metal sheets with rectangular indentation are connected by a rectangular microstrip line；Described T-shaped microstrip line is connected to gradual change cable architecture in the middle part of described rectangular microstrip line.Utility model works WLAN two frequency ranges (2.4~2.4853GHz, 5.15~5.825GHz), and in respective frequency range have wider bandwidth of rejection.The utility model antenna have small size, low section, high-isolation, easily it is conformal, be easy to make many advantages, such as, can be widely applied to WLAN.
Description
Technical field
The utility model was related to wireless communication field, more particularly, to a kind of double frequency suitable for WLAN MIMO days
Line.
Background technology
With the fast development of information technology, WLAN (WLAN) is widely used in home network and public place
In network, WLAN conventional frequency range is 2.4~2.4835GHz and 5.15~5.825GHz frequency ranges, it is therefore necessary to which design can be same
When be operated in above-mentioned two frequency range and functional, broad covered area antenna is to meet the market demand.
Space resources can be made full use of more by receiving multiple (MIMO) technology, i.e., multiple hairs are used at transmitting terminal and receiving terminal
Penetrate, reception antenna, come increase spatial degrees of freedom, improve band efficiency, improve systematic function.MIMO technology is because can effectively alleviate
Frequency spectrum resource is limited and contradiction that high speed data requirements increase without limitation, it has also become a study hotspot in wireless communication field.
The trend of mobile communication equipment miniaturization requires that antenna will also be minimized, and this further results in mimo antenna each unit
Between spacing diminish, isolation diminishes, and finally influences communication quality.
In a limited space, multiple antennas how are arranged, and reduce the stiffness of coupling between multiple antenna elements, day is improved
Isolation between line unit is the key for improving MTMO systematic functions.
The content of the invention
The purpose of this utility model is to provide a kind of simple in construction, with low section, high-isolation, lower coupling, easily altogether
The double frequency mimo antenna suitable for WLAN of the advantages of shape.
The technical scheme that the utility model is used to achieve the above object is：Described one kind is applied to WLAN
Double frequency mimo antenna include medium substrate；Described medium substrate upper surface be printed with two antenna element units, two it is micro-
Ribbon feeder；Described medium substrate lower surface is printed with metal ground plate and T-shaped microstrip line；Two described antenna element units
Structure, size are identical, and quadrature arrangement is in described medium substrate upper surface.
Described antenna element unit is connected with described microstrip feed line.
The width of the microstrip feed line is 3mm, and length is 11mm.
Described metal ground plate by two pieces of rectangular metal sheets and two pieces of described rectangular metal sheets of connection a rectangle
Microstrip line is constituted.
Described T-shaped microstrip line in the middle part of described rectangular microstrip line with gradual change cable architecture with being connected, and described is T-shaped micro-
The isolation between described antenna element unit can be strengthened with line.
There is rectangular indentation in described rectangular metal sheet, described breach is located at the underface of described microstrip feed line.
Described medium substrate is 50mm × 50mm FR-4 epoxy glass cloth laminated boards, and relative dielectric constant is 4.4, is damaged
Consumption angle is just cut to 0.02, and thickness is 1.59mm.
Described antenna element unit be " mountain " font and the arrowhead-shaped structure being combined, can by adjusting its physical dimension
Make the antenna while being operated in 2.4~2.4835GHz, 5.15~5.825GHz two wireless local area network bands.
A kind of double frequency mimo antenna suitable for WLAN involved by the utility model has low section, high isolation
Degree, lower coupling, it is easily conformal, many advantages, such as be easy to make, therefore suitable for current mimo wireless communication field, with extensive
Application prospect.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model；
Fig. 2 is top view of the present utility model
Fig. 3 is upward view of the present utility model；
Fig. 4 is reflectance factor of the present utility model (S11) curve map；
Fig. 5 is transmission coefficient of the present utility model (S21) curve map；
Embodiment
In order that the utility model antenna technical issues that need to address become apparent from, it is new to this practicality below in conjunction with accompanying drawing
Type antenna is described in further detail.
Fig. 1 is the structural representation of the utility model antenna, and the top view of the respectively the utility model antenna of Fig. 2,3 is with facing upward
View.The antenna includes medium substrate (2), and described medium substrate upper surface is printed with antenna element unit (1,5) and micro-strip
Feeder line (4,7), described medium substrate lower surface is printed with metal ground plate (6) and T-shaped microstrip line (3).Described antenna array
Subelement (1,5), microstrip feed line (4,7), T-shaped microstrip line (3) and metal ground plate (6) are all paired with the diagonal of medium substrate
Claim distribution.
Medium substrate (2) of the present utility model is that dielectric constant is 4.4, and loss angle tangent is 0.02, and thickness is 1.59mm
FR-4 epoxy glass cloth laminated boards, its length be 50mm, width is 50mm；The width of microstrip feed line is 3mm, and length is
11mm；The gradual change line length of T-shaped microstrip line is 39mm.
Antenna element unit (1,5) of the present utility model is " mountain " font and the arrowhead-shaped structure being combined, and passes through adjustment
Its physical dimension can make Antenna Operation in 2.4~2.4835GHz, 5.15~5.825GHz two wireless local area network bands.
Metal ground plate (6) of the present utility model is connected by two pieces of rectangular metal sheets by a rectangular microstrip line,
Described T-shaped microstrip line (3) is connected to gradual change cable architecture in the middle part of described rectangular microstrip line.
Described T-shaped microstrip line can strengthen the isolation between described antenna element unit.
The utility model antenna is simultaneously operable in 2.4~2.4835GHz and 5.15~5.825GHz two in summary
Isolation between wireless local area network band, and two antenna element units is obtained significantly because of described T-shaped microstrip line
Improve, the antenna structure is simple, it is easy to produce, with low section, high-isolation, lower coupling, it is easily conformal, be easy to make etc. many
Advantage, therefore suitable for current MIMO WLANs field, be with a wide range of applications.
The foregoing is only better embodiment of the present utility model, not to limit the utility model, it is all
Any modifications, equivalent substitutions and improvements made within spirit and principle of the present utility model etc., should be included in this practicality new
Within the protection domain of type.
Claims (5)
1. a kind of double frequency mimo antenna suitable for WLAN, it includes medium substrate, the upper table of described medium substrate
Face is printed with two antenna element units, two microstrip feed lines, and described medium substrate lower surface is printed with metal ground plate and T
Type microstrip line, two described antenna element cellular constructions, sizes are identical, and quadrature arrangement is in described medium substrate upper table
Face.
2. a kind of double frequency mimo antenna suitable for WLAN according to claim 1, it is characterised in that：Described
Metal ground plate is that two pieces of rectangular metal sheets are connected by a rectangular microstrip line.
3. a kind of double frequency mimo antenna suitable for WLAN according to claim 2, it is characterised in that：Described
Two pieces of rectangular metal sheets have rectangular indentation in the position directly below of two described feeder lines.
4. a kind of double frequency mimo antenna suitable for WLAN according to claim 2, it is characterised in that：The T
Type microstrip line is with gradual change cable architecture with being connected in the middle part of described rectangular microstrip line.
5. a kind of double frequency mimo antenna suitable for WLAN according to claim 1, it is characterised in that：Described
Antenna element unit is " mountain " font and the arrowhead-shaped structure being combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720106630.6U CN206541932U (en) | 2017-01-22 | 2017-01-22 | A kind of double frequency mimo antenna suitable for WLAN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720106630.6U CN206541932U (en) | 2017-01-22 | 2017-01-22 | A kind of double frequency mimo antenna suitable for WLAN |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206541932U true CN206541932U (en) | 2017-10-03 |
Family
ID=59940527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720106630.6U Expired - Fee Related CN206541932U (en) | 2017-01-22 | 2017-01-22 | A kind of double frequency mimo antenna suitable for WLAN |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206541932U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829013A (en) * | 2019-11-19 | 2020-02-21 | 榆林学院 | C-band planar MIMO antenna based on interdigital coupling structure |
| CN111883924A (en) * | 2020-08-10 | 2020-11-03 | 珠海格力电器股份有限公司 | Internet of things equipment, dual-frequency antenna and design method thereof |
| WO2022267685A1 (en) * | 2021-06-23 | 2022-12-29 | 中兴通讯股份有限公司 | Dual-frequency multi-feed antenna and electronic device |
-
2017
- 2017-01-22 CN CN201720106630.6U patent/CN206541932U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829013A (en) * | 2019-11-19 | 2020-02-21 | 榆林学院 | C-band planar MIMO antenna based on interdigital coupling structure |
| CN111883924A (en) * | 2020-08-10 | 2020-11-03 | 珠海格力电器股份有限公司 | Internet of things equipment, dual-frequency antenna and design method thereof |
| WO2022267685A1 (en) * | 2021-06-23 | 2022-12-29 | 中兴通讯股份有限公司 | Dual-frequency multi-feed antenna and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20200122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |