CN209266563U - A kind of dual-attenuation ultra wide band mimo antenna flexible - Google Patents
A kind of dual-attenuation ultra wide band mimo antenna flexible Download PDFInfo
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- CN209266563U CN209266563U CN201822075551.0U CN201822075551U CN209266563U CN 209266563 U CN209266563 U CN 209266563U CN 201822075551 U CN201822075551 U CN 201822075551U CN 209266563 U CN209266563 U CN 209266563U
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- antenna
- mimo antenna
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- wide band
- ultra wide
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Abstract
The utility model relates to a kind of dual-attenuation ultra wide band mimo antennas flexible, including substrate, earth plate and mimo antenna patch, the earth plate and mimo antenna patch is located on substrate, the substrate is plate made of liquid crystal polymer, the mimo antenna patch includes the identical element antenna of two structures, the element antenna is U-shaped ultra-wideband monopole antenna, and the opening direction of two element antennas is identical.Compared with prior art, the utility model has many advantages, such as that thermal expansion coefficient is low, low in cost, loss is smaller using liquid crystal polymer as substrate；MIMO structure isolation is high；By having scribed two U-type grooves on U-shaped ultra-wideband monopole antenna, so that being added to the stopband for WiMAX and WLAN in the working frequency of antenna, it is therefore prevented that interfere existing wireless communication frequency band.
Description
Technical field
The utility model relates to a kind of mimo antennas, more particularly, to a kind of dual-attenuation ultra wide band mimo antenna flexible.
Background technique
It in recent years, can significantly lifting system capacity and frequency spectrum and energy with the fast development of modern wireless technology
5th third-generation mobile communication technology (5G) of efficiency is come into being, and causes the extensive concern of people rapidly, and among this most
One of important means are multiple-input and multiple-output (Multiple-Input Multiple-Output, MIMO) technologies, also by
It is known as most promising one of technology.In order to effectively expanding the channel capacity of system, and improvement communication
Quality, it is necessary to multipath effect is eliminated, and MIMO technology can solve the problems, such as this by introducing multiple antennas in sending and receiving end.
In addition, wireless communication system body-centered becomes the important composition portion of the 5th Generation Mobile Communication System
Point.Medical treatment at present, military, search positioning etc. require such wireless communication system.Such as: in terms of medical treatment, to people
Internal portion is implanted into some instruments, these instruments can measure the information such as temperature, pulse, the heartbeat of human body, can be with after information measures
It will send information to monitor terminal by wearable antenna.Now, in the research of wireless communication system body-centered,
Having a critically important research direction is exactly the research in relation to wearable antenna.Wearable antenna, as the term suggests it is exactly that can wear
Antenna system with being worn over.Wearable antenna can easily complete the hair of the information between person to person or people and machine
It send and receives, it is a vital component, its importance for wireless communication system body-centered
It is self-evident.
Utility model content
The purpose of this utility model is exactly to provide a kind of flexible double to overcome the problems of the above-mentioned prior art
Attenuation band ultra-wideband mimo antenna.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of dual-attenuation ultra wide band mimo antenna flexible, including substrate, earth plate and mimo antenna patch, described connects
Floor and mimo antenna patch are located on substrate, and the substrate is plate made of liquid crystal polymer, the mimo antenna
Patch includes the identical element antenna of two structures, and the element antenna is U-shaped ultra-wideband monopole antenna, two units
The opening direction of antenna is identical.
Two U-type grooves are carved on each element antenna, as WiMAX stopband and WLAN stopband.
The U-type groove is of different size, radian is identical, and the U-type groove width of inside is less than the U-type groove in outside.
The earth plate and mimo antenna patch is located at the upper and lower surface of substrate.
Arch section of the earth plate close to element antenna.
Rectangular preiection there are two being set on the earth plate, it is described respectively close to the cambered top end of two element antennas
Rectangular channel is provided among rectangular preiection, the depth of rectangular channel is higher than the height of rectangular preiection.
The element antenna is connected with feed line, and the feed line prolongs from the cambered top end of element antenna across rectangular channel
It stretches, reaches at antenna lower edge.
The earth plate is equipped with T-type minor matters, and the T-type minor matters are located between two element antennas, as two
The isolation structure of element antenna.
Compared with prior art, the utility model has the advantage that
(1) substrate is plate made of liquid crystal polymer, and polymeric liquid crystal copolymer (LCP) is as a kind of novel flexibility
Material, thermal expansion coefficient is low, low in cost, loss is smaller, and the dielectric constant of LCP is all ten in sufficiently wide frequency range
Divide ground to stablize, is conducive to the design of the device of low cost, high-performance, small size, especially in wearable field, liquid crystal polymer
Possess fabulous flexibility, can arbitrarily be bent, overlay on carrier surface, there is fabulous development prospect.
(2) mimo antenna patch includes the identical element antenna of two structures, and basic radiating element is U-shaped ultra wide band list
Pole sub-antenna is to deform to obtain on the basis of semicircle monopole antenna, by removal the center portion thereof point, semicircle periphery
Two rectangular patches, radiation patch are added to instead of complete semicircle paster, and in two lateral roofs of semi-circular shape patch
Perimeter extended by the deformation of this step, increase the radiation current path in patch periphery.
(3) two U-type grooves are carved on each element antenna, as WiMAX stopband and WLAN stopband, to other existing nothings
Line communications band does not generate interference.
(4) it is set on earth plate there are two rectangular preiection, respectively close to the cambered top end of two element antennas, in rectangular preiection
Between be provided with rectangular channel, can improve antenna matching properties, expand bandwidth of operation.
(5) among two element antennas, a T-type floor minor matters is introduced as isolation structure, are reduced by near field
Caused coupling, and then improve the isolation of antenna.
Detailed description of the invention
Fig. 1 is the present embodiment antenna structure view；
Fig. 2 is the S11 simulation result of the present embodiment antenna；
Fig. 3 is the isolation simulation result of the present embodiment antenna.
Appended drawing reference:
1 is earth plate；2 be element antenna；3 be U-type groove；4 be rectangular preiection；5 be T-type minor matters；6 be feed line.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.The present embodiment is with the utility model
Implemented premised on technical solution, the detailed implementation method and specific operation process are given, but the guarantor of the utility model
Shield range is not limited to the following embodiments.
Embodiment
As shown in Figure 1, a kind of dual-attenuation ultra wide band mimo antenna flexible, including substrate, earth plate and mimo antenna patch
Piece, earth plate and mimo antenna patch are located on substrate, and substrate is plate made of liquid crystal polymer, and mimo antenna patch includes
The identical element antenna of two structures, element antenna are U-shaped ultra-wideband monopole antenna, the opening direction of two element antennas
It is identical.
Two U-type grooves are carved on each element antenna, as WiMAX stopband and WLAN stopband, U-type groove is of different size, arc
Spend identical, the U-type groove width of inside is less than the U-type groove in outside.
Earth plate and mimo antenna patch are located at the upper and lower surface of substrate.
Earth plate sets that there are two rectangular preiections on earth plate close to the arch section of element antenna, respectively close to two lists
The cambered top end of first antenna, rectangular channel is provided among rectangular preiection, and the depth of rectangular channel is higher than the height of rectangular preiection.Earth plate
T-type minor matters are equipped with, T-type minor matters are located between two element antennas, the isolation structure as two element antennas.
Element antenna is connected with feed line, and feed line extends from the cambered top end of element antenna across rectangular channel, reaches
At antenna lower edge.
The following are the improvement part introductions of the present embodiment:
(1) flexible material
The medium substrate materials'use of antenna liquid crystal polymer (LCP).Currently, in the field of microwave and millimeter wave circuit,
Polymeric liquid crystal copolymer (LCP) possesses excellent prospect of the application as a kind of novel flexible substrate material.LCP has
Many outstanding characteristics, it is low including thermal expansion coefficient, low in cost, loss is smaller the advantages that, and the dielectric constant of LCP
It is all completely stable in sufficiently wide frequency range, this allow LCP low cost, high-performance, small size device design at
For optimal selection.
Especially in wearable field, liquid crystal polymer (LCP) material possesses fabulous flexible as a kind of flexible material
Property, it can arbitrarily be bent, overlay on carrier surface, therefore have fabulous and development prospect.
(2) MIMO structure
It, will be to the property of mimo system if the Antenna Correlation in receiving end and transmitting terminal is excessively high for mimo antenna
It can cause to deteriorate, therefore, sufficiently high isolation is the necessary condition that should have between antenna element.With MIMO technology
Be widely applied, many can improve the methods of isolation by numerous studies, such as neutralize line technology, floor minor matters, parasitic element,
Defect ground structure and Meta Materials technology.
The present embodiment joined the floor minor matters an of T-type as isolation structure between element antenna, on the one hand, the ground
Plate minor matters can change the distribution of floor surface electric current so as to improve the impedance matching of port；Still further aspect can be seen
Reduce the near-field coupling between antenna as reflecting plate.Therefore the isolation of nearly all working frequency range of antenna can all be dropped
Below to -15dB.
(3) dual-attenuation performance
Firstly, for the ultra wide band mimo antenna for not adding stopband, Fig. 2 simulation result shows that the antenna is covered on 2-
10.62GHz.And pass through and scribed two U-type grooves on U-shaped ultra-wideband monopole antenna, so that in the working frequency of antenna
On be added to stopband for WiMAX and WLAN, it is therefore prevented that existing wireless communication frequency band is interfered.
Fig. 2 is the S11 simulation result of antenna, it can be seen that is used for WiMAX (3.4-3.6GHz) and WLAN (5.15-
5.825GHz) stopband.Fig. 3 is the isolation simulation result of antenna.If the Antenna Correlation mistake in receiving end and transmitting terminal
Height will cause to deteriorate to the performance of mimo system, therefore, sufficiently high isolation be should have between antenna element must
Want condition.
Claims (8)
1. a kind of dual-attenuation ultra wide band mimo antenna flexible, including substrate, earth plate and mimo antenna patch, the ground connection
Plate and mimo antenna patch are located on substrate, which is characterized in that the substrate is plate made of liquid crystal polymer, described
Mimo antenna patch includes the identical element antenna of two structures, and the element antenna is U-shaped ultra-wideband monopole antenna,
The opening direction of two element antennas is identical.
2. a kind of dual-attenuation ultra wide band mimo antenna flexible according to claim 1, which is characterized in that each unit day
Two U-type grooves are carved on line, as WiMAX stopband and WLAN stopband.
3. a kind of dual-attenuation ultra wide band mimo antenna flexible according to claim 2, which is characterized in that described is U-shaped
Different width of tubesheet hole groove, radian are identical, and the U-type groove width of inside is less than the U-type groove in outside.
4. a kind of dual-attenuation ultra wide band mimo antenna flexible according to claim 1, which is characterized in that the ground connection
Plate and mimo antenna patch are located at the upper and lower surface of substrate.
5. a kind of dual-attenuation ultra wide band mimo antenna flexible according to claim 1, which is characterized in that the ground connection
Arch section of the plate close to element antenna.
6. a kind of dual-attenuation ultra wide band mimo antenna flexible according to claim 1, which is characterized in that the ground connection
Rectangular preiection is provided with square among the rectangular preiection respectively close to the cambered top end of two element antennas there are two setting on plate
Shape slot, the depth of rectangular channel are higher than the height of rectangular preiection.
7. a kind of dual-attenuation ultra wide band mimo antenna flexible according to claim 6, which is characterized in that the unit
Antenna is connected with feed line, and the feed line extends from the cambered top end of element antenna across rectangular channel, reaches under antenna
Edge.
8. a kind of dual-attenuation ultra wide band mimo antenna flexible according to claim 1, which is characterized in that the ground connection
Plate is equipped with T-type minor matters, and the T-type minor matters are located between two element antennas, the isolation structure as two element antennas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822075551.0U CN209266563U (en) | 2018-12-11 | 2018-12-11 | A kind of dual-attenuation ultra wide band mimo antenna flexible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822075551.0U CN209266563U (en) | 2018-12-11 | 2018-12-11 | A kind of dual-attenuation ultra wide band mimo antenna flexible |
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| CN209266563U true CN209266563U (en) | 2019-08-16 |
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ID=67563063
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| CN201822075551.0U Expired - Fee Related CN209266563U (en) | 2018-12-11 | 2018-12-11 | A kind of dual-attenuation ultra wide band mimo antenna flexible |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755729A (en) * | 2018-12-11 | 2019-05-14 | 上海电力学院 | A kind of dual-attenuation ultra wide band mimo antenna flexible |
| CN110911839A (en) * | 2019-12-13 | 2020-03-24 | 北京邮电大学 | 5G dual-band high-isolation dual-port common-ground monopole antenna |
| CN111987458A (en) * | 2020-07-30 | 2020-11-24 | 南京理工大学 | Decoupling structure between adjacent rectangular patches in dual-frequency antenna array |
| US11258184B2 (en) | 2019-08-21 | 2022-02-22 | Ticona Llc | Antenna system including a polymer composition having a low dissipation factor |
| US11555113B2 (en) | 2019-09-10 | 2023-01-17 | Ticona Llc | Liquid crystalline polymer composition |
| US11637365B2 (en) | 2019-08-21 | 2023-04-25 | Ticona Llc | Polymer composition for use in an antenna system |
| US11646760B2 (en) | 2019-09-23 | 2023-05-09 | Ticona Llc | RF filter for use at 5G frequencies |
| US11721888B2 (en) | 2019-11-11 | 2023-08-08 | Ticona Llc | Antenna cover including a polymer composition having a low dielectric constant and dissipation factor |
| US11729908B2 (en) | 2020-02-26 | 2023-08-15 | Ticona Llc | Circuit structure |
| US11728559B2 (en) | 2021-02-18 | 2023-08-15 | Ticona Llc | Polymer composition for use in an antenna system |
| US11917753B2 (en) | 2019-09-23 | 2024-02-27 | Ticona Llc | Circuit board for use at 5G frequencies |
| US11912817B2 (en) | 2019-09-10 | 2024-02-27 | Ticona Llc | Polymer composition for laser direct structuring |
| US12104010B2 (en) | 2021-02-04 | 2024-10-01 | Ticona Llc | Polymer composition for an electric circuit protection device |
| US12136762B2 (en) | 2023-04-18 | 2024-11-05 | Ticona Llc | Polymer composition for use in an antenna system |
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2018
- 2018-12-11 CN CN201822075551.0U patent/CN209266563U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755729A (en) * | 2018-12-11 | 2019-05-14 | 上海电力学院 | A kind of dual-attenuation ultra wide band mimo antenna flexible |
| CN109755729B (en) * | 2018-12-11 | 2024-08-27 | 上海电力学院 | Flexible double stop band ultra-wideband MIMO antenna |
| US11705641B2 (en) | 2019-08-21 | 2023-07-18 | Ticoan Llc | Antenna system including a polymer composition having a low dissipation factor |
| US11258184B2 (en) | 2019-08-21 | 2022-02-22 | Ticona Llc | Antenna system including a polymer composition having a low dissipation factor |
| US11637365B2 (en) | 2019-08-21 | 2023-04-25 | Ticona Llc | Polymer composition for use in an antenna system |
| US11555113B2 (en) | 2019-09-10 | 2023-01-17 | Ticona Llc | Liquid crystalline polymer composition |
| US11912817B2 (en) | 2019-09-10 | 2024-02-27 | Ticona Llc | Polymer composition for laser direct structuring |
| US11917753B2 (en) | 2019-09-23 | 2024-02-27 | Ticona Llc | Circuit board for use at 5G frequencies |
| US11646760B2 (en) | 2019-09-23 | 2023-05-09 | Ticona Llc | RF filter for use at 5G frequencies |
| US12107617B2 (en) | 2019-09-23 | 2024-10-01 | Ticona Llc | RF filter for use at 5G frequencies |
| US11721888B2 (en) | 2019-11-11 | 2023-08-08 | Ticona Llc | Antenna cover including a polymer composition having a low dielectric constant and dissipation factor |
| CN110911839A (en) * | 2019-12-13 | 2020-03-24 | 北京邮电大学 | 5G dual-band high-isolation dual-port common-ground monopole antenna |
| CN110911839B (en) * | 2019-12-13 | 2020-11-03 | 北京邮电大学 | 5G dual-band high-isolation dual-port common-ground monopole antenna |
| US11729908B2 (en) | 2020-02-26 | 2023-08-15 | Ticona Llc | Circuit structure |
| US12035467B2 (en) | 2020-02-26 | 2024-07-09 | Ticona Llc | Circuit structure |
| CN111987458A (en) * | 2020-07-30 | 2020-11-24 | 南京理工大学 | Decoupling structure between adjacent rectangular patches in dual-frequency antenna array |
| US12104010B2 (en) | 2021-02-04 | 2024-10-01 | Ticona Llc | Polymer composition for an electric circuit protection device |
| US11728559B2 (en) | 2021-02-18 | 2023-08-15 | Ticona Llc | Polymer composition for use in an antenna system |
| US12136762B2 (en) | 2023-04-18 | 2024-11-05 | Ticona Llc | Polymer composition for use in an antenna system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190816 Termination date: 20191211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |