CN115051151A - MIMO antenna and electronic equipment - Google Patents
MIMO antenna and electronic equipment Download PDFInfo
- Publication number
- CN115051151A CN115051151A CN202210819384.4A CN202210819384A CN115051151A CN 115051151 A CN115051151 A CN 115051151A CN 202210819384 A CN202210819384 A CN 202210819384A CN 115051151 A CN115051151 A CN 115051151A
- Authority
- CN
- China
- Prior art keywords
- antenna
- substrate
- mimo
- frequency
- metal layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 238000005452 bending Methods 0.000 claims abstract description 18
- 230000005855 radiation Effects 0.000 claims abstract description 17
- 239000007769 metal material Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 abstract description 7
- 238000002955 isolation Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000004075 alteration Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
Images
Classifications
-
- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- 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
- H01Q5/10—Resonant antennas
-
- 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
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
-
- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
Landscapes
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present disclosure discloses a MIMO antenna and an electronic apparatus, the MIMO antenna including: a substrate, an antenna structure; the antenna structure is arranged on the first surface of the substrate, a clearance area is arranged on the second surface of the substrate, and a metal layer covers the second surface outside the clearance area; the antenna structure comprises two antenna radiation units with mutually symmetrical structures, each antenna radiation unit comprises a plurality of antennas with different frequency bands, each antenna is provided with a preset bending structure, the antennas with low frequency bands are wrapped outside the preset part of the antenna with high frequency bands in sequence, and the frequency bands of the antennas are sequentially increased from the outer layer to the inner layer of the wrapping. The antenna of the embodiment of the disclosure has the design of the predetermined bending structure, and the structure of the antenna is in a form that the low-frequency antenna part wraps the high-frequency antenna, so that not only is the volume of the antenna reduced, but also the problem that the multi-frequency band antenna occupies a large area on the substrate is greatly reduced, the miniaturization of the antenna is realized by using a simpler structure, the size is obviously reduced, and the overall performance of the antenna is improved.
Description
Technical Field
The present disclosure relates to the field of antennas, and in particular, to a MIMO antenna and an electronic device.
Background
With the rapid development of wireless communication technology, WLANs have been widely used in the lives of households. In the face of increasingly complex application scenarios and increasingly high performance requirements, MIMO (Multiple-Input Multiple-output) antennas have also become a reliable and effective design method due to their obvious technical advantages. Meanwhile, the trend of increasingly miniaturization of wireless terminals is to increase the coupling between MIMO antenna units, and increasing the isolation between MIMO antenna units becomes a key problem to be solved.
Currently, the general methods for improving the isolation of the antenna include: polarization diversity method, decoupling network method, narrowing metamaterial method, neutral line method and the like. Although these conventional schemes for optimizing the isolation can improve the isolation between the unit antennas to a certain extent, the conventional antennas generally have the problems of complex structure, large size, narrow bandwidth, and the like, and thus the requirement for miniaturization of the terminal antenna cannot be met.
Disclosure of Invention
In view of this, the embodiments of the present disclosure provide a MIMO antenna and an electronic device, so as to solve the following problems in the prior art: the existing antenna generally has the problems of complex structure, large size, narrow bandwidth and the like, and the miniaturization requirement of the terminal antenna cannot be realized.
In one aspect, an embodiment of the present disclosure provides a MIMO antenna, including: a substrate, an antenna structure; the antenna structure is arranged on the first surface of the substrate, a clearance area is arranged on the second surface of the substrate, and a metal layer covers the second surface outside the clearance area; the antenna structure comprises two antenna radiation units with mutually symmetrical structures, each antenna radiation unit comprises a plurality of antennas with different frequency bands, each antenna is provided with a preset bending structure, the antenna with a low frequency band is wrapped outside a preset part of the antenna with a high frequency band in sequence, and the frequency bands of the antennas are sequentially increased from the outer layer to the inner layer of the wrapping.
In some embodiments, the antenna radiating element comprises: a high frequency antenna and a low frequency antenna, the feed point of the high frequency antenna being connected to the metal layer of the second side, the feed point of the low frequency antenna being connected to the ground plane of the antenna structure, wherein the ground plane is the boundary between the metal layer and the clearance area.
In some embodiments, further comprising: the floor gap structure is arranged on the second surface, is positioned on the symmetrical line of the two antenna radiation units, is a T-shaped area which is not covered with metal materials on the metal layer, extends along the horizontal line of the antenna structure to the direction of the metal layer, and is parallel to the horizontal line area of the T-shaped area.
In some embodiments, further comprising: the protruding ground structure is located on the symmetry line of the two antenna radiation units, the protruding ground structure comprises two symmetrical metal strips entering the clearance area from the metal layer, and the periphery of the metal strip located on the metal layer is the second surface of the substrate which is not covered with the metal material.
In some embodiments, further comprising: and the inductor is arranged on the metal strip of the clearance area on which the protruding ground structure is positioned.
In some embodiments, the inductance is 5.6nH in size.
In some embodiments, further comprising: the protruding ground structure is located between the floor gap structures, and the protruding ground structure divides the T-shaped floor gap structure into two L-shaped floor gap structures.
In some embodiments, the frequency band of the high frequency antenna is 5GHz, and the frequency band of the low frequency antenna is 2.4 GHz.
In some embodiments, the substrate has a size of 80mm by 48mm, the substrate has a thickness of 0.8mm, and the antenna headroom area has a size of 48mm by 6.3 mm.
In another aspect, an embodiment of the present disclosure provides an electronic device, including: the MIMO antenna of any embodiment of the present disclosure.
The antenna of the embodiment of the disclosure has designed the predetermined bending structure, and the structure of the antenna is in a form that the low-frequency antenna part wraps the high-frequency antenna, so that not only is the volume of the antenna reduced, but also the problem that the multi-frequency band antenna occupies a larger area on the substrate is greatly reduced, the miniaturization of the antenna is realized by using a simpler structure, the size is obviously reduced compared with the existing size, and the overall performance of the antenna is improved.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and for those skilled in the art, other drawings may be obtained according to the drawings without creative efforts.
Fig. 1 is a first schematic structural diagram of a MIMO antenna according to an embodiment of the present disclosure;
fig. 2 is a second schematic structural diagram of a MIMO antenna provided in the embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a MIMO antenna with an added floor gap structure according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a MIMO antenna with an increased protruding structure provided in the embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a MIMO antenna with an added floor gap structure and a protruding ground structure according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a MIMO antenna with an added inductor according to an embodiment of the present disclosure;
fig. 7 is a schematic size diagram of a MIMO antenna provided in the embodiment of the present disclosure.
Reference numerals:
1-substrate, 2-antenna structure, 11-clearance area, 12-metal layer, 21-high frequency antenna, 22-low frequency antenna, 3-floor gap structure, 4-protruding ground structure, 5-inductance.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.
The embodiment of the present disclosure provides a MIMO antenna, the structural schematic of which is shown in fig. 1 and fig. 2, including:
a substrate 1, an antenna structure 2; the antenna structure 2 is arranged on a first side (figure 1) of the substrate, a clearance area 11 is arranged on a second side (figure 2) of the substrate, and a metal layer 12 covers the second side outside the clearance area; the antenna structure 2 comprises two antenna radiation units with mutually symmetrical structures, each antenna radiation unit comprises a plurality of antennas with different frequency bands, each antenna is provided with a preset bending structure, the antenna with a low frequency band is wrapped outside the preset part of the antenna with a high frequency band in sequence, and the frequency bands of the antennas are sequentially increased from the outer layer to the inner layer of the wrapping.
The antenna structure on the first side of the substrate is marked with diagonal hatching in fig. 2 described above, however, in reality, the antenna structure cannot see the structure provided on the first side on the second side.
For example, each antenna radiating element may comprise two frequency band antennas as shown in fig. 1, namely a high frequency antenna 21 (e.g. 5GHz) and a low frequency antenna 22 (e.g. 2.4GHz), the feeding point of the high frequency antenna being connected to the metal layer of the second facet and the feeding point of the low frequency antenna being connected to the ground plane of the antenna structure, wherein the ground plane is the boundary of the metal layer and the clearance area.
Of course, fig. 1 is only an example, each antenna radiation unit may also include antennas of three frequency bands, for example, a first antenna (e.g., 6GHz), a second antenna (e.g., 5GHz), and a third antenna (e.g., 2.4GHz), and then the wrapping sequence is that the first antenna wraps the second antenna, and the second antenna wraps the third antenna; it should be noted that the above-mentioned wrapping does not wrap the other antenna completely inside, but wraps a predetermined portion of the antenna inside, and the complete wrapping does not conform to the characteristics of the antenna, and it is only a partial structure that is wrapped, and those skilled in the art should reasonably exclude the complete wrapping.
The antenna of the embodiment of the present disclosure has a predetermined bending structure, and the predetermined bending structure may be designed into a L-like shape as shown in fig. 1 according to actual requirements of the antenna, wherein the thickness of each side in the L-like bending structure may be adaptively designed according to the frequency band of the antenna.
The predetermined bending structure of the antenna is preferably set to be L-like, mainly considering the resonant frequency of the whole antenna, and the predetermined bending structure may also be in other shapes with a plurality of bending points, however, compared with the L-like structure with only one bending point, the more the bending points are, the more complicated the calculation of the resonant frequency of the antenna is, and the performance of the antenna is not stable enough, in order to ensure that the antenna has relatively stable performance and wider bandwidth, the L-like bending structure is directly adopted in the embodiment of the present disclosure, so that the variable of the resonant frequency in the transverse and longitudinal directions can be determined more easily, and further the resonant frequency of the whole antenna can be determined better; moreover, the L-shaped antenna is more beneficial to processing compared with other shapes with a plurality of bending points, the processing controllability is stronger, and the performance of the processed antenna can be ensured.
The antenna of the embodiment of the disclosure has designed the predetermined bending structure, and the structure of the antenna is in a form that the low-frequency antenna part wraps the high-frequency antenna, so that not only is the volume of the antenna reduced, but also the problem that the multi-frequency band antenna occupies a larger area on the substrate is greatly reduced, the miniaturization of the antenna is realized by using a simpler structure, the size is obviously reduced compared with the existing size, and the overall performance of the antenna is improved.
As shown in fig. 3, in order to increase the isolation between the low frequency antennas, the MIMO antenna may further include a floor slot structure 3 disposed on the second surface, and located on a symmetry line of the two antenna radiation elements, and being a T-shaped region not covered with the metal material on the metal layer, wherein the floor slot structure extends toward the metal layer along a horizontal line of the antenna structure, and a horizontal line region of the T-shaped region is parallel to the horizontal line, and the horizontal line is a boundary line between the metal layer and the clearance region.
As shown in fig. 4, in order to increase the isolation between the high-frequency antennas, the MIMO antenna may further include a protruding ground structure 4 disposed on the second surface and located on the symmetry line of the two antenna radiating elements, the protruding ground structure includes two portions of symmetrical metal strips entering the clearance area from the metal layer, and the metal strips located on the periphery of the metal layer are the second surface of the substrate not covered with the metal material. The protruding ground structure is also designed to have a bent structure, which can reduce the length of the protruding ground structure, helping to further realize antenna miniaturization.
In a preferred embodiment, a protruding structure may be provided between the floor gap structures, which splits the T-shaped floor gap structure into two L-shaped floor gap structures, the structure of which is schematically shown in fig. 5.
In order to further reduce the length of the protruding ground structure, an inductor 5 can be further arranged on the metal strip of the protruding ground structure located in the clearance area, and the size of the inductor can be set to be 5.6 nH; the two 5.6nH inductances are used to further shorten the length of the protruding structure when the space between the antenna radiating elements is narrow, so as to further realize the miniaturization of the whole antenna structure. The structure of the inductor arranged on the basis of fig. 5 is schematically shown in fig. 6.
In a specific implementation, the size of the substrate is preferably set to 80mm × 48mm, and the thickness of the substrate is preferably set to 0.8 mm; for the antenna clearance area which is the main area for arranging the antenna, the second surface outside the clearance area is covered with the metal layer, and the metal layer can be replaced by other structure equivalents in the mobile phone and the notebook computer, but the clearance area can not be replaced, therefore, the size of the clearance area can be directly reduced by reducing the whole volume of the antenna, and the occupied area of the antenna in a mobile phone and a notebook computer can be directly reduced, for the substrate with the above size, the size limit of the antenna clearance area can only be 48mm by 10mm, however, with the solution of the embodiment of the present disclosure, the size of the antenna clearance area can be set to at least 48mm by 6.3mm, which directly reduces the area size of 48mm by 3.7mm as a whole, for some miniaturized products, more space can be made for product design, and the space utilization of the miniaturized products is obviously improved.
For the situation that the size of the antenna clearance area can be set to 48mm × 6.3mm, some sizes of the high-frequency antenna, the low-frequency antenna, the floor gap structure, the protruding ground structure, and the like can be as shown in fig. 7, where a is 1.8mm, b is 7.7mm, c is 8.4mm, d is 4.3mm, e is 15.8mm, f is 6.4mm, g is 0.8mm, h is 5.3mm, i is 1mm, j is 7.2mm, k is 0.5mm, and m is 12.9 mm. Fig. 7 schematically shows some dimensions, and does not fully show the details of the dimensions, and those skilled in the art can schematically adjust the given dimensions and the non-given dimensions according to the requirements, and the given dimensions and the non-given dimensions are not fixed values, but are only a design example, and do not limit the protection scope of the embodiments of the present disclosure.
In order to meet the application requirements of multi-band, miniaturization and high isolation of the MIMO antenna, the miniaturized dual-band MIMO antenna applied to the WLAN is realized through coupling feed and bending modes, and the isolation of the antenna is effectively improved through the design of a loading protruding ground structure and a floor gap structure.
Specifically, the embodiment of the disclosure designs a miniaturized dual-unit WLAN MIMO antenna working in 2.4GHz and 5GHz frequency bands; secondly, the antenna isolation of the MIMO antenna in the 2.4GHz frequency band is optimized by adding a protruding ground structure design between the unit antennas, and in order to reduce the size of the protruding ground, 2 lumped inductors of 5.6nH are connected to the protruding ground unit; the antenna isolation of the MIMO antenna in a 5GHz frequency band is improved by introducing a floor gap structure.
The clearance area of the MIMO antenna of the embodiment of the present disclosure is only: 48mm 6.3mm, the return loss of the antenna in the 2.4GHz and 5GHz frequency bands is below-10 dB, the antenna isolation is greater than 20dB, and the MIMO antenna is simple in form and low in processing cost and can meet the actual application requirements.
The miniaturized high-isolation MIMO antenna applicable to the WLAN comprises an antenna radiation unit, a ground plane and a ground plane, wherein the antenna radiation unit comprises a high-frequency feed branch (high-frequency antenna) and a low-frequency short-circuit branch (low-frequency antenna), the antenna radiation unit passes through a coaxial inner core of the ground plane through a feed point positioned at a high-frequency feed branch terminal for feeding, and the coupling feeding and the bent low-frequency short-circuit branch realize the miniaturized double-frequency MIMO antenna applied to 2.4GHz and 5 GHz; the short-circuit branch is used for exciting low-frequency resonance of 2.4GHz, and the resonance generated by the high-frequency feed branch and the short-circuit branch at high frequency jointly excites 5GHz resonance; the outstanding ground structure also comprises a section of metal body connected with 5.6nH lumped inductance, and a feed unit of the antenna is excited in a coupling feed mode; the substrate is made of FR4 dielectric substrate with dielectric constant of 4.3 and loss tangent of 0.02.
The embodiment of the disclosure utilizes a coupling feed technology and adopts a bent and bent antenna form, thereby not only realizing the multi-band of the antenna, but also realizing the miniaturization of the antenna.
The embodiment of the present disclosure further provides an electronic device, which at least includes the MIMO antenna in the foregoing embodiment, and the structure of the MIMO antenna is not described herein again. For the electronic device, it may be a router, a notebook computer, etc., and will not be described herein in detail.
Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the disclosure with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, the subject matter of the present disclosure may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the disclosure should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
While the present disclosure has been described in detail with reference to the embodiments, the present disclosure is not limited to the specific embodiments, and those skilled in the art can make various modifications and alterations based on the concept of the present disclosure, and the modifications and alterations should fall within the scope of the present disclosure as claimed.
Claims (10)
1. A MIMO antenna, comprising:
a substrate, an antenna structure;
the antenna structure is arranged on the first surface of the substrate, a clearance area is arranged on the second surface of the substrate, and a metal layer covers the second surface outside the clearance area;
the antenna structure comprises two antenna radiation units with mutually symmetrical structures, each antenna radiation unit comprises a plurality of antennas with different frequency bands, each antenna is provided with a preset bending structure, the antenna with a low frequency band is wrapped outside a preset part of the antenna with a high frequency band in sequence, and the frequency bands of the antennas are sequentially increased from the outer layer to the inner layer of the wrapping.
2. The MIMO antenna of claim 1, wherein the antenna radiating element comprises:
a high frequency antenna and a low frequency antenna, the feed point of the high frequency antenna being connected to the metal layer of the second side, the feed point of the low frequency antenna being connected to the ground plane of the antenna structure, wherein the ground plane is the boundary between the metal layer and the clearance area.
3. The MIMO antenna of claim 1 or 2, further comprising:
the floor gap structure is arranged on the second surface, is positioned on the symmetrical line of the two antenna radiation units, is a T-shaped area which is not covered with metal materials on the metal layer, extends along the horizontal line of the antenna structure to the direction of the metal layer, and is parallel to the horizontal line area of the T-shaped area.
4. The MIMO antenna of claim 1 or 2, further comprising:
the protruding ground structure is located on the symmetry line of the two antenna radiation units, the protruding ground structure comprises two symmetrical metal strips entering the clearance area from the metal layer, and the periphery of the metal strip located on the metal layer is the second surface of the substrate which is not covered with the metal material.
5. The MIMO antenna of claim 4, further comprising:
and the inductor is arranged on the metal strip of the clearance area on which the protruding ground structure is positioned.
6. The MIMO antenna of claim 5, wherein the inductance is of a size of 5.6 nH.
7. The MIMO antenna of claim 4, further comprising:
the protruding ground structure is located between the floor gap structures, and the protruding ground structure divides the T-shaped floor gap structure into two L-shaped floor gap structures.
8. The MIMO antenna of claim 2,
the frequency band of the high-frequency antenna is 5GHz, and the frequency band of the low-frequency antenna is 2.4 GHz.
9. The MIMO antenna of claim 1,
the size of the substrate is 80mm 48mm, the thickness of the substrate is 0.8mm, and the size of the antenna clearance area is 48mm 6.3 mm.
10. An electronic device, comprising: the MIMO antenna of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210819384.4A CN115051151B (en) | 2022-07-12 | 2022-07-12 | MIMO antenna and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210819384.4A CN115051151B (en) | 2022-07-12 | 2022-07-12 | MIMO antenna and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115051151A true CN115051151A (en) | 2022-09-13 |
| CN115051151B CN115051151B (en) | 2024-04-19 |
Family
ID=83166013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210819384.4A Active CN115051151B (en) | 2022-07-12 | 2022-07-12 | MIMO antenna and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115051151B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099348A (en) * | 2016-07-11 | 2016-11-09 | 杭州电子科技大学 | A kind of mobile phone terminal MIMO double antenna covered with extension ground Whole frequency band |
| CN106935971A (en) * | 2015-12-29 | 2017-07-07 | 华为技术有限公司 | Antenna and communication equipment |
| CN206742495U (en) * | 2017-03-14 | 2017-12-12 | 中兴通讯股份有限公司 | Antenna and terminal |
| KR20180013079A (en) * | 2016-07-28 | 2018-02-07 | 제일정보통신(주) | Mimo antenna |
| CN108832277A (en) * | 2018-05-25 | 2018-11-16 | 哈尔滨工程大学 | A kind of miniature antenna of inductance load |
| CN208157615U (en) * | 2018-03-01 | 2018-11-27 | 深圳市信维通信股份有限公司 | A kind of compact 5G Sub-6 mimo antenna structure and terminal device |
| CN208256902U (en) * | 2018-03-27 | 2018-12-18 | 无锡睿勤科技有限公司 | Two-band mimo antenna and laptop lid with it |
| CN109659688A (en) * | 2019-01-28 | 2019-04-19 | 上海电力学院 | A kind of three frequencies mimo antenna flexible |
| CN111211400A (en) * | 2020-02-28 | 2020-05-29 | 成都信息工程大学 | High isolation, low profile broadband MIMO antenna system |
| CN211126046U (en) * | 2019-12-25 | 2020-07-28 | 歌尔科技有限公司 | Mobile terminal and antenna thereof |
| CN111478039A (en) * | 2020-05-26 | 2020-07-31 | 中国电子科技集团公司第五十四研究所 | Miniaturized dual-band PIFA antenna and compact combined antenna |
| 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 |
-
2022
- 2022-07-12 CN CN202210819384.4A patent/CN115051151B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935971A (en) * | 2015-12-29 | 2017-07-07 | 华为技术有限公司 | Antenna and communication equipment |
| CN106099348A (en) * | 2016-07-11 | 2016-11-09 | 杭州电子科技大学 | A kind of mobile phone terminal MIMO double antenna covered with extension ground Whole frequency band |
| KR20180013079A (en) * | 2016-07-28 | 2018-02-07 | 제일정보통신(주) | Mimo antenna |
| CN206742495U (en) * | 2017-03-14 | 2017-12-12 | 中兴通讯股份有限公司 | Antenna and terminal |
| CN208157615U (en) * | 2018-03-01 | 2018-11-27 | 深圳市信维通信股份有限公司 | A kind of compact 5G Sub-6 mimo antenna structure and terminal device |
| CN208256902U (en) * | 2018-03-27 | 2018-12-18 | 无锡睿勤科技有限公司 | Two-band mimo antenna and laptop lid with it |
| CN108832277A (en) * | 2018-05-25 | 2018-11-16 | 哈尔滨工程大学 | A kind of miniature antenna of inductance load |
| CN109659688A (en) * | 2019-01-28 | 2019-04-19 | 上海电力学院 | A kind of three frequencies mimo antenna flexible |
| CN211126046U (en) * | 2019-12-25 | 2020-07-28 | 歌尔科技有限公司 | Mobile terminal and antenna thereof |
| CN111211400A (en) * | 2020-02-28 | 2020-05-29 | 成都信息工程大学 | High isolation, low profile broadband MIMO antenna system |
| CN111478039A (en) * | 2020-05-26 | 2020-07-31 | 中国电子科技集团公司第五十四研究所 | Miniaturized dual-band PIFA antenna and compact combined antenna |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115051151B (en) | 2024-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3896790B1 (en) | Antenna structure and communication terminal | |
| CN106856261B (en) | Antenna array | |
| CN110085971B (en) | Printed circuit board antenna and terminal | |
| CN108429005B (en) | High-isolation planar 10-antenna MIMO system and 5G mobile terminal | |
| CN213753059U (en) | Multi-frequency low-SAR antenna and electronic equipment | |
| US9748661B2 (en) | Antenna for achieving effects of MIMO antenna | |
| JP2013013084A (en) | Antenna and communication device thereof | |
| KR101166090B1 (en) | Multi band mimo antenna | |
| Jabar et al. | Design of miniaturized quad-band dual-arm spiral patch antenna for RFID, WLAN and WiMAX applications | |
| US20230261370A1 (en) | Antenna decoupling structure, mimo antenna, and terminal | |
| CN113471665B (en) | Antenna and terminal | |
| Wang et al. | Compact MIMO antenna for 5G portable device using simple neutralization line structures | |
| CN110828999B (en) | Dual-frequency dual-polarization two-unit MIMO antenna based on composite left-right hand transmission line structure | |
| Aziz et al. | Printed 5G MIMO antenna arrays in smartphone handset for LTE bands 42/43/46 applications | |
| CN115051151B (en) | MIMO antenna and electronic equipment | |
| CN115966900A (en) | Broadband high-isolation dual-frequency MIMO single-pole cone antenna array | |
| CN107039746A (en) | One kind 11 frequency range antenna for mobile phone of miniaturization | |
| CN114597652A (en) | Antenna array | |
| CN110165395B (en) | Miniaturized compact three-frequency-band antenna | |
| CN113036405A (en) | Antenna structure and electronic equipment | |
| Lhilali et al. | Multiband multi-antenna system for MIMO WLAN box | |
| CN218940002U9 (en) | Multiple-input multiple-output antenna and electronic device | |
| EP4362224A1 (en) | Antenna system and electronic device | |
| CN114583448B (en) | Compact three-unit terminal MIMO antenna array for 5G mobile communication | |
| CN114665266B (en) | Three-frequency broadband decoupling device of multiple-input multiple-output antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |