CN109994819A - A kind of antenna, antenna system and electronic equipment - Google Patents
A kind of antenna, antenna system and electronic equipment Download PDFInfo
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- CN109994819A CN109994819A CN201910228599.7A CN201910228599A CN109994819A CN 109994819 A CN109994819 A CN 109994819A CN 201910228599 A CN201910228599 A CN 201910228599A CN 109994819 A CN109994819 A CN 109994819A
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- closure
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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
-
- 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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
Abstract
The invention discloses a kind of antenna, antenna system and electronic equipments, and wherein antenna includes: first antenna unit and the second antenna element；The branch structure for short circuit of closure is provided between the first antenna unit and second antenna element；Wherein, the branch structure for short circuit of the closure is used to guide the surface current between the first antenna unit and second antenna element.
Description
Technical field
This disclosure relates to field of antenna more particularly to a kind of antenna, antenna system and electronic equipment.
Background technique
In communication era, it is all made of antenna technology in the electronic equipments such as smart phone, tablet computer, laptop,
But because of the higher and higher integrated level of existing electronic equipment, screen enlarging causes the requirement to antenna also higher and higher.
Summary of the invention
In view of this, being able to solve above-mentioned an embodiment of the present invention is intended to provide a kind of antenna, antenna system and electronic equipment
Problem.
In order to achieve the above objectives, the technical solution of the embodiment of the present invention is achieved in that
The embodiment of the present invention records a kind of antenna, comprising: first antenna unit and the second antenna element；
The branch structure for short circuit of closure is provided between the first antenna unit and second antenna element；
Wherein, the branch structure for short circuit of the closure is for guiding the first antenna unit and second day described
Surface current between line unit.
The embodiment of the present invention also records a kind of antenna system, comprising:
Antenna is any one aforementioned antenna；
Baseband module, for handling signal, so that the signal transmits in the channel；
Radio-frequency module, for the low frequency signal transmitted from the baseband module to be converted to high-frequency signal, and will be from institute
The high-frequency signal for stating antenna transmission is converted to low frequency signal, for baseband module processing.
The embodiment of the present invention also records a kind of electronic equipment, comprising:
Antenna is any one aforementioned antenna.
Antenna provided by the embodiment of the present invention, comprising: first antenna unit and the second antenna element；First antenna unit
And second be provided with closure between antenna element the branch structure for short circuit；Wherein, the branch knot for short circuit of closure
Structure is used to guide the surface current between first antenna unit and the second antenna element.In this way, passing through the whole of two antenna elements
Design is closed, the occupied space of antenna is reduced, is conducive to the application of multiaerial system；Due to being provided between two antenna elements
The branch structure for short circuit of closure, to solve the problems, such as mutual interference and isolation.
Detailed description of the invention
Fig. 1 is the composed structure schematic diagram of antenna provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of first antenna unit provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the second antenna element provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of first antenna provided in an embodiment of the present invention；
Fig. 5 is the double frequency double antenna after first antenna unit provided in an embodiment of the present invention and the integration of the second antenna element
Structural schematic diagram；
Fig. 6 is the schematic perspective view of double frequency double antenna provided in an embodiment of the present invention；
Fig. 7 is the planar structure schematic diagram of double frequency double antenna provided in an embodiment of the present invention；
Fig. 8 is the schematic perspective view of the double frequency double antenna after bending provided in an embodiment of the present invention；
Fig. 9 is the schematic perspective view of the double frequency double antenna after a variety of bendings provided in an embodiment of the present invention；
Figure 10 is the composed structure schematic diagram of antenna system provided in an embodiment of the present invention.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, with reference to the accompanying drawing to this hair
The realization of bright embodiment is described in detail, appended attached drawing purposes of discussion only for reference, is not used to limit the present invention.
Invention is further described in detail in the following with reference to the drawings and specific embodiments.
Embodiment one,
The embodiment of the invention provides a kind of antennas, as shown in Figure 1, the antenna includes: first antenna unit 101 and
Two antenna elements 102.
The branch structure for short circuit of closure is provided between first antenna unit 101 and the second antenna element 102.
Wherein, the branch structure for short circuit of closure is for guiding first antenna unit 101 and the second antenna element 102
Between surface current.
Antenna in the present embodiment can be adapted for the mobile communication terminals such as smart phone, tablet computer, laptop
Application.The antenna combination that 4x4 or 8x8 may be implemented is particularly suitable for the MIMO communication system of multiple antenna design, applied day
Line number amount is more, and the system space of saving is more.
It in some embodiments, is the structural schematic diagram of first antenna unit referring to Fig. 2, Fig. 3 is the second antenna element
Structural schematic diagram, first antenna unit 101 is identical with the structure composition of the second antenna element 102, here, first antenna unit
101 can replicate to form the second antenna element 102 by way of asymmetric mirror image.
First antenna unit 101 may include: the ground branch of the second antenna of first antenna and integration, the second antenna element
102 may include: the second antenna and the ground branch for integrating first antenna.
Below by taking first antenna unit 101 as an example, the structure element of first antenna unit 101 is illustrated:
It is the structural schematic diagram of first antenna referring to Fig. 4, first antenna is the loop aerial of the double branches of a SF single feed, benefit
With the mode of gap couple feed, the resonance of different frequency bands is motivated, first antenna is provided with a feeding point and a grounding point,
And first antenna includes the branch of two corresponding different frequency ranges, one is high-frequency current branch, is short branch, the other is low
Frequency current branch, for long branch；Here, long branch motivates a quarter-wave loop aerial resonance at 2GHz, and
Short branch motivates a quarter-wave loop aerial resonance in 5.5GHz, is designed, is made low by the bending of short circuit branch
Frequency and two loop aerials of high frequency share the short dot for being connected to ground plane.
In order to realize integration of two antenna elements in the same space, second is increased using lesser mode is influenced
Grounding point incorporates the ground connection branch of the second antenna as the basis for realizing the second antenna element on the basis of first antenna
Road, as shown in Figure 2.
After the ground connection branch of the second antenna is integrated into first antenna, the branch for short circuit an of closure will form
Structure.Since the loop aerial electric current of the low-frequency current branch of first antenna understands some grounding point for flowing to the second antenna,
Effective electrical length is reduced, here, the ratio between the physical length of microstrip transmission line and transmitted electromagnetic wavelength are electrical length, with L (L
Upper one is horizontal)=L/ λ, wherein λ is wavelength, and L is the physical length of transmission line, therefore the quarter-wave ring of low-frequency current branch
Shape antenna resonant frequency is increased to 2.5GHz, to make up the loss of electrical length；And for high-frequency current branch, the second antenna
Ground branch grounding point farther out, therefore the grounding point that more high frequency branch current flows into the second antenna is not had, to high frequency
The influence of resonance is mainly reflected in the increase of radiation metal area, and after coupling, radiation metal area increases, and improves matching naturally
And bandwidth.
Referring to Fig. 2, Fig. 3, first antenna unit 101 is provided with feeding point and grounding point, the second antenna element 102, setting
There are feeding point and grounding point.First antenna unit 101 and the second antenna element 102 are connected to each other to be formed by respective grounding point
The branch structure for short circuit of closure, and, the feeding point of the feeding point of first antenna unit 101 and the second antenna element 102
The two sides of the branch structure for short circuit of closure are set.
By the integration of both first antenna unit 101 and the second antenna element 102, double frequency double antenna is formed, such as Fig. 5 institute
Show, which includes two feeding points and two grounding points, here it is possible to by connecing two antenna elements are respective
Place is connected to each other, i.e., is overlapped the branch structure for being used for short circuit being closed in two antenna elements, to realize two antenna lists
The integration of member.
Wherein, the branch structure for short circuit of closure is for guiding first antenna unit 101 and the second antenna element 102
Between surface current.By the way that the grounding point of two antenna elements is integrated, two grounding points is made to be distributed in two feeds
Between point, and the branch structure for short circuit an of closure is formed, so that flowing by ground plane another after antenna excitation
Surface current at one antenna element feed can be guided in the branch structure for short circuit of the closure, effectively reduce
Influence to another antenna element improves the isolation between two antenna elements.Under normal circumstances, between two antenna elements
Any connection or coupling contact are needed not exist for, but apart from more remoter better, mutual independent action, but in order to compress two
The occupied space of antenna element, two antenna elements, which are placed on, to be very close to one another spatially, their ground connection couples branch
Road is connected to the same ground plane, and two antenna element distances are very close, so the ground connection coupling of two antenna elements
The current path for guiding two antenna elements between branch by the closing structure of special designing is closed, to reduce from each other
Interference.
The length of first antenna unit 101 and the second antenna element 102 is about 22mm, is independently operated on 2.5/5.5GHz frequency
Duan Shang, functional and isolation are less than 15dB.After the branch structure overlapping for being used for short circuit being closed in two antenna elements,
Double frequency double antenna overall length only has 27mm, and space required for antenna substantially reduces, and about reduces 40%.In addition, due to two antennas
The branch structure for short circuit being closed in unit can become mutually mutual isolation element, in such a way that electric current guides,
Preferable two troughs of isolation are generated in 2.5GHz and 5.5GHz frequency range respectively, it can't be because of the whole of two antenna elements
It closes and the isolation between two antenna elements is made to be deteriorated.
Antenna provided in an embodiment of the present invention, by combining two antenna element compressions, due to two antennas
The branch structure for short circuit of closure is provided between unit, to solve the problems, such as mutual interference and isolation；Due to
Two antenna elements only need to can be achieved with using the space of an antenna element, to save for Complete machine system design
A large amount of days space of lines, also simplifies the antenna placement position problem of MIMO multiaerial system.
Embodiment two,
The embodiment of the invention provides a kind of antennas, as shown in Figure 1, the antenna includes: first antenna unit 101 and
Two antenna elements 102.
The branch structure for short circuit of closure is provided between first antenna unit 101 and the second antenna element 102.
Wherein, the branch structure for short circuit of closure is for guiding first antenna unit 101 and the second antenna element 102
Between surface current.
Antenna in the present embodiment can be adapted for the mobile communication terminals such as smart phone, tablet computer, laptop
Application.The antenna combination that 4x4 or 8x8 may be implemented is particularly suitable for the MIMO communication system of multiple antenna design, applied day
Line number amount is more, and the system space of saving is more.
It in some embodiments, is the structural schematic diagram of first antenna unit referring to Fig. 2, Fig. 3 is the second antenna element
Structural schematic diagram, first antenna unit 101 is identical with the structure composition of the second antenna element 102, here, first antenna unit
101 can replicate to form the second antenna element 102 by way of asymmetric mirror image.
First antenna unit 101 may include the first antenna branch and the second antenna branch of two corresponding different frequency ranges；
Second antenna element 102 may include the third antenna branch and the 4th antenna branch of two corresponding different frequency ranges.
Wherein, the length of first antenna branch is greater than the second antenna branch, and the resonance band of first antenna branch is lower than
The resonance band of second antenna branch；The length of third antenna branch is greater than the 4th antenna branch, and third antenna branch is humorous
Frequency range of shaking is lower than the resonance band of the 4th antenna branch.
Below by taking first antenna unit 101 as an example, the structure element of first antenna unit 101 is illustrated:
Referring to Fig. 2, first antenna unit 101 may include the first antenna branch and second of two corresponding different frequency ranges
Antenna branch, here, first antenna branch can be low-frequency current branch, and for long branch, the second antenna branch can be high frequency
Current branch is short branch, and here, long branch motivates a quarter-wave loop aerial resonance at 2GHz, and short
Branch motivates a quarter-wave loop aerial resonance in 5.5GHz, is designed by the bending of short circuit branch, makes low frequency
The short dot for being connected to ground plane is shared with two loop aerials of high frequency.
It is to be appreciated that the second antenna element 102, may include the third antenna branch and of two corresponding different frequency ranges
Four antenna branch, here, third antenna branch can be low-frequency current branch, and for long branch, the 4th antenna branch can be height
Frequency current branch is short branch.
Wherein, first antenna branch and third antenna branch have a closing structure, and closing structure it is opposite both ends it is equal
It is provided with grounding point；First antenna branch and third antenna branch are connected to each other by respective grounding point, so that first antenna
The overlapping of the closing structure of branch and third antenna branch is integrally formed the branch structure for short circuit of closure.Here it is possible to logical
It crosses and two respective grounding points of antenna element is connected to each other, i.e., the branch knot for being used for short circuit that will be closed in two antenna elements
Structure overlapping, to realize the integration of two antenna elements.
Wherein, the branch structure for short circuit of closure is for guiding first antenna unit 101 and the second antenna element 102
Between surface current.By the way that the grounding point of two antenna elements is integrated, two grounding points is made to be distributed in two feeds
Between point, and the branch structure for short circuit an of closure is formed, so that flowing by ground plane another after antenna excitation
Surface current at one antenna element feed can be guided in the branch structure for short circuit of the closure, effectively reduce
Influence to another antenna element improves the isolation between two antenna elements.Under normal circumstances, between two antenna elements
Any connection or coupling contact are needed not exist for, but apart from more remoter better, mutual independent action, but in order to compress two
The occupied space of antenna element, two antenna elements, which are placed on, to be very close to one another spatially, their ground connection couples branch
Road is connected to the same ground plane, and two antenna element distances are very close, so the ground connection coupling of two antenna elements
The current path for guiding two antenna elements between branch by the closing structure of special designing is closed, to reduce from each other
Interference.
The length of first antenna unit 101 and the second antenna element 102 is about 22mm, is independently operated on 2.5/5.5GHz frequency
Duan Shang, functional and isolation are less than 15dB.After the branch structure overlapping for being used for short circuit being closed in two antenna elements,
Double frequency double antenna overall length only has 27mm, and space required for antenna substantially reduces, and about reduces 40%.In addition, due to two antennas
The branch structure for short circuit being closed in unit can become mutually mutual isolation element, in such a way that electric current guides,
Preferable two troughs of isolation are generated in 2.5GHz and 5.5GHz frequency range respectively, it can't be because of the whole of two antenna elements
It closes and the isolation between two antenna elements is made to be deteriorated.
Antenna provided in an embodiment of the present invention, by combining two antenna element compressions, due to two antennas
The branch structure for short circuit of closure is provided between unit, to solve the problems, such as mutual interference and isolation；Due to
Two antenna elements only need to can be achieved with using the space of an antenna element, to save for Complete machine system design
A large amount of days space of lines, also simplifies the antenna placement position problem of MIMO multiaerial system.
Embodiment three,
The embodiment of the invention provides a kind of antennas, as shown in Figure 1, the antenna includes: first antenna unit 101 and
Two antenna elements 102.
The branch structure for short circuit of closure is provided between first antenna unit 101 and the second antenna element 102.
Wherein, the branch structure for short circuit of closure is for guiding first antenna unit 101 and the second antenna element 102
Between surface current.
Wherein, first antenna unit 101 and the second antenna element 102 have bending stereochemical structure.
Antenna in the present embodiment can be adapted for the mobile communication terminals such as smart phone, tablet computer, laptop
Application.The antenna combination that 4x4 or 8x8 may be implemented is particularly suitable for the MIMO communication system of multiple antenna design, applied day
Line number amount is more, and the system space of saving is more.
In some embodiments, first antenna unit 101 and the second antenna element 102 have bending stereochemical structure.
As shown in fig. 6, being the schematic perspective view of double frequency double antenna, Fig. 7 is that the planar structure of double frequency double antenna is illustrated
Figure, the double frequency double antenna overall length only have 27mm, and space required for antenna substantially reduces, about reduction 40%, enough in space
It can directly be used under environment.
Due to the MIMO communication system that 4G or 5G communication uses, 4x4,8x8 (4/8 antenna transmitting, 4/8 antenna are had
Receive) etc. forms, antenna amount need 4,8 or more, placing space is a challenge to system itself.
When thickness requirement when space is inadequate, the bending stereochemical structure of two antenna elements can use, by the double days of double frequency
Line is bent into stereochemical structure shown in Fig. 8, after bending, can be placed in the space with a thickness of 2mm.Specifically,
Can a dotted line in Fig. 7 roll over 90 degree forward or backward, 90 degree are rolled over round about along another dotted line, from left side or the right side
The double frequency double antenna stereoscopic schematic diagram that can be obtained by Fig. 8 is watched in side.
Furthermore it is also possible to using the bending stereochemical structure of two antenna elements further compress double frequency double antenna volume or
Cooperate terminal device moulding demand, as shown in figure 9, meeting the MIMO communication system application of multiple antennas.
Antenna provided in an embodiment of the present invention, by combining two antenna element compressions, due to two antennas
The branch structure for short circuit of closure is provided between unit, to solve the problems, such as mutual interference and isolation；Due to
Two antenna elements only need to can be achieved with using the space of an antenna element, to save for Complete machine system design
A large amount of days space of lines, also simplifies the antenna placement position problem of MIMO multiaerial system；By the antenna volume of Integration Design
Small, flexible structure can be realized by a variety of planes or stereochemical structure mode, be conducive to the multiple-antenna MIMO systems such as 4x4,8x8
Application.
Example IV,
The embodiment of the invention provides a kind of antenna systems, as shown in Figure 10, the system comprises: antenna 1001, base band
Module 1002, radio-frequency module 1003.
In some embodiments, antenna 1001 includes: first antenna unit and the second antenna element.
The branch structure for short circuit of closure is provided between first antenna unit and the second antenna element.
Wherein, the branch structure for short circuit of closure is for guiding between first antenna unit and the second antenna element
Surface current.
Baseband module 1002, for handling signal, so that signal transmits in the channel.
Radio-frequency module 1003, for the low frequency signal transmitted from baseband module 1002 to be converted to high-frequency signal, and general
The high-frequency signal transmitted from antenna 1001 is converted to low frequency signal, for the processing of baseband module 1002.
It in some embodiments, is the structural schematic diagram of first antenna unit referring to Fig. 2, Fig. 3 is the second antenna element
The structure composition of structural schematic diagram, first antenna unit and the second antenna element is identical, and here, first antenna unit can pass through
The mode of asymmetric mirror image replicates to form the second antenna element.
First antenna unit may include: the ground branch of the second antenna of first antenna and integration, and the second antenna element can
To include: the second antenna and integrate the ground branch of first antenna.
Below by taking first antenna unit as an example, the structure element of first antenna unit is illustrated:
It is the structural schematic diagram of first antenna referring to Fig. 4, first antenna is the loop aerial of the double branches of a SF single feed, benefit
With the mode of gap couple feed, the resonance of different frequency bands is motivated, first antenna is provided with a feeding point and a grounding point,
And first antenna includes the branch of two corresponding different frequency ranges, one is high-frequency current branch, is short branch, the other is low
Frequency current branch, for long branch；Here, long branch motivates a quarter-wave loop aerial resonance at 2GHz, and
Short branch motivates a quarter-wave loop aerial resonance in 5.5GHz, is designed, is made low by the bending of short circuit branch
Frequency and two loop aerials of high frequency share the short dot for being connected to ground plane.
In order to realize integration of two antenna elements in the same space, second is increased using lesser mode is influenced
Grounding point incorporates the ground connection branch of the second antenna as the basis for realizing the second antenna element on the basis of first antenna
Road, as shown in Figure 2.
After the ground connection branch of the second antenna is integrated into first antenna, the branch for short circuit an of closure will form
Structure.Since the loop aerial electric current of the low-frequency current branch of first antenna understands some grounding point for flowing to the second antenna,
Effective electrical length is reduced, here, the ratio between the physical length of microstrip transmission line and transmitted electromagnetic wavelength are electrical length, with L (L
Upper one is horizontal)=L/ λ, wherein λ is wavelength, and L is the physical length of transmission line, therefore the quarter-wave ring of low-frequency current branch
Shape antenna resonant frequency is increased to 2.5GHz, to make up the loss of electrical length；And for high-frequency current branch, the second antenna
Ground branch grounding point farther out, therefore the grounding point that more high frequency branch current flows into the second antenna is not had, to high frequency
The influence of resonance is mainly reflected in the increase of radiation metal area, and after coupling, radiation metal area increases, and improves matching naturally
And bandwidth.
Referring to Fig. 2, Fig. 3, first antenna unit is provided with feeding point and grounding point, and the second antenna element is provided with feed
Point and grounding point.First antenna unit and the second antenna element be connected to each other by respective grounding point to be formed closure for short
The branch structure on road, and, the feeding point of the feeding point of first antenna unit and the second antenna element be arranged in closure for short
The two sides of the branch structure on road.
By the integration of both first antenna unit and the second antenna element, double frequency double antenna is formed, as shown in figure 5, should
Double frequency double antenna includes two feeding points and two grounding points, here it is possible to by by two respective grounding points of antenna element
It is connected to each other, i.e., is overlapped the branch structure for being used for short circuit being closed in two antenna elements, to realize two antenna elements
Integration.
Wherein, the branch structure for short circuit of closure is for guiding between first antenna unit and the second antenna element
Surface current.By the way that the grounding point of two antenna elements is integrated, it is distributed in two grounding points between two feeding points,
And the branch structure for short circuit for forming a closure, so that flowing into another day by ground plane after antenna excitation
Surface current at line unit feed can be guided in the branch structure for short circuit of the closure, effectively reduce to another
The influence of antenna element improves the isolation between two antenna elements.It under normal circumstances, is to be not required between two antenna elements
There are any connection or coupling contact, but more remoter better, the mutual independent action of distance, but in order to compress two antenna lists
The occupied space of member, two antenna elements, which are placed on, to be very close to one another spatially, their ground connection coupling branch is to connect
It connects in the same ground plane, and two antenna element distances are very close, so the ground connection of two antenna elements couples branch
Between the current path of two antenna elements is guided by the closing structure of special designing, to reduce interference from each other.
The length of first antenna unit and the second antenna element is about 22mm, is independently operated in 2.5/5.5GHz frequency range,
Functional and isolation is less than 15dB.After the branch structure overlapping for being used for short circuit being closed in two antenna elements, double frequency
Double antenna overall length only has 27mm, and space required for antenna substantially reduces, and about reduces 40%.In addition, due to two antenna elements
The branch structure for short circuit of middle closure can become mutually mutual isolation element, in such a way that electric current guides, respectively
In 2.5GHz and 5.5GHz frequency range generate preferable two troughs of isolation, can't because of two antenna elements integration and
The isolation between two antenna elements is set to be deteriorated.
Antenna system provided in an embodiment of the present invention, by combining two antenna element compressions, due to two
The branch structure for short circuit of closure is provided between antenna element, to solve the problems, such as mutual interference and isolation；
Since two antenna elements only need to can be achieved with using the space of an antenna element, to be saved for Complete machine system design
A large amount of days space of lines have been saved, the antenna placement position problem of MIMO multiaerial system is also simplified.
Embodiment five,
The embodiment of the invention provides a kind of electronic equipment, comprising: antenna.
As shown in Figure 1, the antenna includes: first antenna unit and the second antenna element.
The branch structure for short circuit of closure is provided between first antenna unit and the second antenna element.
Wherein, the branch structure for short circuit of closure is for guiding between first antenna unit and the second antenna element
Surface current.
Antenna in the present embodiment can be adapted for the mobile communication terminals such as smart phone, tablet computer, laptop
Application.The antenna combination that 4x4 or 8x8 may be implemented is particularly suitable for the MIMO communication system of multiple antenna design, applied day
Line number amount is more, and the system space of saving is more.
It in some embodiments, is the structural schematic diagram of first antenna unit referring to Fig. 2, Fig. 3 is the second antenna element
The structure composition of structural schematic diagram, first antenna unit and the second antenna element is identical, and here, first antenna unit can pass through
The mode of asymmetric mirror image replicates to form the second antenna element.
First antenna unit may include: the ground branch of the second antenna of first antenna and integration, and the second antenna element can
To include: the second antenna and integrate the ground branch of first antenna.
Below by taking first antenna unit as an example, the structure element of first antenna unit is illustrated:
It is the structural schematic diagram of first antenna referring to Fig. 4, first antenna is the loop aerial of the double branches of a SF single feed, benefit
With the mode of gap couple feed, the resonance of different frequency bands is motivated, first antenna is provided with a feeding point and a grounding point,
And first antenna includes the branch of two corresponding different frequency ranges, one is high-frequency current branch, is short branch, the other is low
Frequency current branch, for long branch；Here, long branch motivates a quarter-wave loop aerial resonance at 2GHz, and
Short branch motivates a quarter-wave loop aerial resonance in 5.5GHz, is designed, is made low by the bending of short circuit branch
Frequency and two loop aerials of high frequency share the short dot for being connected to ground plane.
In order to realize integration of two antenna elements in the same space, second is increased using lesser mode is influenced
Grounding point incorporates the ground connection branch of the second antenna as the basis for realizing the second antenna element on the basis of first antenna
Road, as shown in Figure 2.
After the ground connection branch of the second antenna is integrated into first antenna, the branch for short circuit an of closure will form
Structure.Since the loop aerial electric current of the low-frequency current branch of first antenna understands some grounding point for flowing to the second antenna,
Effective electrical length is reduced, here, the ratio between the physical length of microstrip transmission line and transmitted electromagnetic wavelength are electrical length, with L (L
Upper one is horizontal)=L/ λ, wherein λ is wavelength, and L is the physical length of transmission line, therefore the quarter-wave ring of low-frequency current branch
Shape antenna resonant frequency is increased to 2.5GHz, to make up the loss of electrical length；And for high-frequency current branch, the second antenna
Ground branch grounding point farther out, therefore the grounding point that more high frequency branch current flows into the second antenna is not had, to high frequency
The influence of resonance is mainly reflected in the increase of radiation metal area, and after coupling, radiation metal area increases, and improves matching naturally
And bandwidth.
Referring to Fig. 2, Fig. 3, first antenna unit is provided with feeding point and grounding point, and the second antenna element is provided with feed
Point and grounding point.First antenna unit and the second antenna element be connected to each other by respective grounding point to be formed closure for short
The branch structure on road, and, the feeding point of the feeding point of first antenna unit and the second antenna element be arranged in closure for short
The two sides of the branch structure on road.
By the integration of both first antenna unit and the second antenna element, double frequency double antenna is formed, as shown in figure 5, should
Double frequency double antenna includes two feeding points and two grounding points, here it is possible to by by two respective grounding points of antenna element
It is connected to each other, i.e., is overlapped the branch structure for being used for short circuit being closed in two antenna elements, to realize two antenna elements
Integration.
Wherein, the branch structure for short circuit of closure is for guiding between first antenna unit and the second antenna element
Surface current.By the way that the grounding point of two antenna elements is integrated, it is distributed in two grounding points between two feeding points,
And the branch structure for short circuit for forming a closure, so that flowing into another day by ground plane after antenna excitation
Surface current at line unit feed can be guided in the branch structure for short circuit of the closure, effectively reduce to another
The influence of antenna element improves the isolation between two antenna elements.It under normal circumstances, is to be not required between two antenna elements
There are any connection or coupling contact, but more remoter better, the mutual independent action of distance, but in order to compress two antenna lists
The occupied space of member, two antenna elements, which are placed on, to be very close to one another spatially, their ground connection coupling branch is to connect
It connects in the same ground plane, and two antenna element distances are very close, so the ground connection of two antenna elements couples branch
Between the current path of two antenna elements is guided by the closing structure of special designing, to reduce interference from each other.
The length of first antenna unit and the second antenna element is about 22mm, is independently operated in 2.5/5.5GHz frequency range,
Functional and isolation is less than 15dB.After the branch structure overlapping for being used for short circuit being closed in two antenna elements, double frequency
Double antenna overall length only has 27mm, and space required for antenna substantially reduces, and about reduces 40%.In addition, due to two antenna elements
The branch structure for short circuit of middle closure can become mutually mutual isolation element, in such a way that electric current guides, respectively
In 2.5GHz and 5.5GHz frequency range generate preferable two troughs of isolation, can't because of two antenna elements integration and
The isolation between two antenna elements is set to be deteriorated.
Electronic equipment provided in an embodiment of the present invention, by combining two antenna element compressions, due to two
The branch structure for short circuit of closure is provided between antenna element, to solve the problems, such as mutual interference and isolation；
Since two antenna elements only need to can be achieved with using the space of an antenna element, to be saved for Complete machine system design
A large amount of days space of lines have been saved, the antenna placement position problem of MIMO multiaerial system is also simplified.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.
Claims (9)
1. a kind of antenna, comprising: first antenna unit and the second antenna element；
The branch structure for short circuit of closure is provided between the first antenna unit and second antenna element；
Wherein, the branch structure for short circuit of the closure is for guiding the first antenna unit and the second antenna list
Surface current between member.
2. antenna according to claim 1,
The first antenna unit, is provided with feeding point and grounding point；
Second antenna element, is provided with feeding point and grounding point；
Wherein, the first antenna unit and second antenna element are connected to each other to form described close by respective grounding point
The branch structure for short circuit closed, and,
The feeding point of the feeding point of the first antenna unit and second antenna element be arranged in the closure for short
The two sides of the branch structure on road.
3. antenna according to claim 1,
The first antenna unit, first antenna branch and the second antenna branch including two corresponding different frequency ranges；
Second antenna element, third antenna branch and the 4th antenna branch including two corresponding different frequency ranges.
4. antenna according to claim 3,
The first antenna branch and the third antenna branch have closing structure, and the both ends that the closing structure is opposite
It is provided with grounding point；
The first antenna branch and the third antenna branch are connected to each other by respective grounding point, so that described first day
The overlapping of the closing structure of line branch and the third antenna branch is integrally formed the branch structure for short circuit of the closure.
5. antenna according to claim 3,
The length of the first antenna branch is greater than second antenna branch, and the resonance band of the first antenna branch is low
In the resonance band of second antenna branch；
The length of the third antenna branch is greater than the 4th antenna branch, and the resonance band of the third antenna branch is low
In the resonance band of the 4th antenna branch.
6. antenna according to claim 1,
The first antenna unit replicates to form second antenna element by way of asymmetric mirror image.
7. antenna according to claim 1,
The first antenna unit and second antenna element have bending stereochemical structure.
8. a kind of antenna system, comprising:
Antenna is the described in any item antennas of claim 1 to 7；
Baseband module, for handling signal, so that the signal transmits in the channel；
Radio-frequency module, for the low frequency signal transmitted from the baseband module to be converted to high-frequency signal, and will be from the day
The high-frequency signal of line transmission is converted to low frequency signal, for baseband module processing.
9. a kind of electronic equipment, comprising: antenna, the antenna are the described in any item antennas of claim 1 to 7.
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| CN201910228599.7A CN109994819B (en) | 2019-03-25 | 2019-03-25 | Antenna, antenna system and electronic equipment |
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| CN201910228599.7A CN109994819B (en) | 2019-03-25 | 2019-03-25 | Antenna, antenna system and electronic equipment |
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| CN109994819B CN109994819B (en) | 2020-06-23 |
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| US20090079655A1 (en) * | 2007-09-21 | 2009-03-26 | Samsung Electronics Co., Ltd. | Multi-band antenna and multi-band antenna system with enhanced isolation characteristic |
| CN202957344U (en) * | 2012-11-21 | 2013-05-29 | 泰科资讯科技有限公司 | Mirror image coupling antenna system |
| CN103647142A (en) * | 2013-11-21 | 2014-03-19 | 南京信息工程大学 | A double-frequency band MIMO inverted F antenna used for a WLAN and a WIMAX |
| CN103811869A (en) * | 2012-11-08 | 2014-05-21 | 中兴通讯股份有限公司 | Multiple-input multiple-output antenna system and mobile terminal |
| CN104701623A (en) * | 2015-03-25 | 2015-06-10 | 电子科技大学 | High-isolation MIMO (Multiple Input Multiple Output) antenna |
| US9583824B2 (en) * | 2011-09-28 | 2017-02-28 | Sony Corporation | Multi-band wireless terminals with a hybrid antenna along an end portion, and related multi-band antenna systems |
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| US20090079655A1 (en) * | 2007-09-21 | 2009-03-26 | Samsung Electronics Co., Ltd. | Multi-band antenna and multi-band antenna system with enhanced isolation characteristic |
| US9583824B2 (en) * | 2011-09-28 | 2017-02-28 | Sony Corporation | Multi-band wireless terminals with a hybrid antenna along an end portion, and related multi-band antenna systems |
| CN103811869A (en) * | 2012-11-08 | 2014-05-21 | 中兴通讯股份有限公司 | Multiple-input multiple-output antenna system and mobile terminal |
| CN202957344U (en) * | 2012-11-21 | 2013-05-29 | 泰科资讯科技有限公司 | Mirror image coupling antenna system |
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