CN106058456A - Compact-type excitation floor orthogonal radiation high-isolation antenna and MIMO communication system therefor - Google Patents
Compact-type excitation floor orthogonal radiation high-isolation antenna and MIMO communication system therefor Download PDFInfo
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- CN106058456A CN106058456A CN201610666575.6A CN201610666575A CN106058456A CN 106058456 A CN106058456 A CN 106058456A CN 201610666575 A CN201610666575 A CN 201610666575A CN 106058456 A CN106058456 A CN 106058456A
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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
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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- 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
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Abstract
The invention provides a compact-type excitation floor orthogonal radiation high-isolation antenna and an MIMO communication system therefor. The antenna comprises a PCB floor, wherein one edge of the PCB floor is provided with a vacant region; a loop ground radiation antenna which is disposed in the vacant region of the PCB floor, and is connected with a non-vacant region of the PCB floor, wherein two branch excitation PCB floors form two resonance circuits through radiation; and an pair of symmetric monopole antennas which are disposed above the vacant region of the PCB floor, and respectively comprises a feeder line, a low-frequency symmetric branch and a high-frequency symmetric branch. The low-frequency symmetric branches and the high-frequency symmetric branches are connected with the non-vacant region of the PCB floor through the feeder lines. The two branch excitation PCB floors form two resonance circuits through radiation. The currents, generated by the loop ground radiation antenna and the symmetric monopole antennas at the excitation PCB floor at each frequency band, are orthogonal. The antenna can employ the orthogonality of currents to achieve the high-isolation double-frequency coverage in a very limited region, wherein the isolation can reach 25dB or more.
Description
Technical field
The present invention relates to mobile terminal device antenna technology, particularly to be a kind of compact excitation floor orthogonal radiation
High-isolation antenna and MIMO (Multiple-Input Multiple-Output, multiple-input and multiple-output) communication system.
Background technology
The fast development of mobile communication terminal business has driven the prosperity of wireless terminal antenna industry, simultaneously to terminal antenna
It is also proposed higher requirement, it is desirable to antenna has the performances such as multiband, small size, high efficiency.And current wireless network passes
Defeated speed, cannot meet the application requirement of present high data transfer rate, more and more technology application improving data transmission rate
And give birth to, MIMO is exactly one of which, and MIMO technology refers to use multiple antenna to realize transmitting-receiving in wireless channel, is not increasing band
In the case of width, the capacity of communication system can be improved exponentially, but the technical bottleneck of multiaerial system is the coupling between antenna
Closing effect can make the output signal between multiple antennas have the biggest dependency, the transmission of severe jamming wireless signal.In order to drop
Dependency between low signal, it is necessary to try every possible means to improve the isolation between antenna in mimo system.
The simplest method of the effects of coupling between solving antenna is to widen the distance between antenna, but, current wireless
The limited space of terminal system, and coupled problem is more serious along with increasing of antenna amount.
Summary of the invention
The present invention provides high-isolation antenna and MIMO communication system, the profit of a kind of compact excitation floor orthogonal radiation
By the orthogonality of electric current, high-isolation double frequency can be realized in very limited amount of space and cover, isolation can reach 25dB with
On.
For solving the problems referred to above, the present invention provides the high-isolation antenna of a kind of compact excitation floor orthogonal radiation, bag
Include:
One PCB floor, has clearance zone on an edge；
One loop eradiation antenna, is arranged on the clearance zone on described PCB floor, and with the non-headroom on described PCB floor
District connects, and the Liang Ge branch excitation PCB flooring radiation of described loop eradiation antenna forms two resonant tanks；And
One symmetrical monopole antenna, is arranged on the top of the clearance zone on described PCB floor, divides including feeder line, low frequency symmetry
And high-frequency symmetrical branch, described low frequency symmetric part of matrix and high-frequency symmetrical branch by feeder line connect described PCB floor non-only
Dead zone, encourages PCB flooring radiation to form two resonance paths by described low frequency symmetric part of matrix and high-frequency symmetrical branch；
Wherein, the electricity that described loop eradiation antenna and symmetrical monopolar sub antenna generate on each band excitation PCB floor
Flow orthogonal.
According to one embodiment of present invention, the low frequency symmetric part of matrix of described symmetrical monopolar sub antenna and high-frequency symmetrical branch
Being positioned at homonymy or the heteropleural of described feeder line, feeder line one end is connected to the line of symmetry of low frequency symmetric part of matrix and the right of high-frequency symmetrical branch
Claim on line, the other end connects the non-clearance zone on described PCB floor.
According to one embodiment of present invention, the symmetrical both sides of described low frequency symmetric part of matrix are isometric, shape is identical；High frequency pair
The symmetrical both sides of title branch are isometric, shape is identical.
According to one embodiment of present invention, described low frequency symmetric part of matrix includes the U-shaped sheet metal that two openings are relative, and
The opening one side of two U-shaped sheet metals is connected, and described high-frequency symmetrical branch includes two straight sheet metals, and one end of two straight sheet metals
It is connected；
Or, described low frequency symmetric part of matrix includes two straight sheet metals, and one end of two straight sheet metals is connected, described high frequency
Symmetric part of matrix includes the U-shaped sheet metal that two openings are relative, and the opening one side of two U-shaped sheet metals is connected；
Or, described low frequency symmetric part of matrix and described high-frequency symmetrical branch all include two straight sheet metals, and two straight metals
One end of sheet is connected；
Or, the U-shaped metal that described low frequency symmetric part of matrix is relative by including two openings with described high-frequency symmetrical branch
Sheet, and the opening one side of two U-shaped sheet metals is connected.
According to one embodiment of present invention, described low frequency symmetric part of matrix and/or described high-frequency symmetrical branch are by two L-types
The vertical part free end of sheet metal connects formation.
According to one embodiment of present invention, described symmetrical monopolar sub antenna is just being positioned at the clearance zone on described PCB floor
Top.
According to one embodiment of present invention, described PCB floor is that one side covers copper dielectric-slab, and does not covers at described clearance zone
Copper.
According to one embodiment of present invention, described loop eradiation antenna includes:
T-shaped conduction band branch, including constituting the first branch of lateral part and the second branch, constituting the 3rd point of vertical section
, described first branch and the second branch extend to the both sides of described 3rd branch, and the end of described first branch is by the
One lumped capacity is connected on the non-clearance zone on PCB floor；The end of the second branch is connected to PCB ground by the second lumped capacity
On the non-clearance zone of plate；
4th branch, one end is connected to the 3rd branch, and the other end is connected on the non-clearance zone on PCB floor, and with PCB ground
The junction of the non-clearance zone of plate connects feed；
Described 4th branch, the 3rd branch, the first branch, the non-clearance zone on the first lumped capacity and PCB floor constitute the
One resonant tank, described 4th branch, the 3rd branch, the second branch, the second lumped capacity are constituted with the non-clearance zone on PCB floor
Second resonant tank.
According to one embodiment of present invention, described loop eradiation antenna also includes quintafurcation, described 5th point
The one end propped up is connected to the end of the 3rd branch, and the other end is connected on the non-clearance zone on PCB floor by the 3rd lumped capacity；
Described 4th branch, quintafurcation, the 3rd lumped capacity constitute matching circuit with the non-clearance zone on PCB floor.
According to one embodiment of present invention, loop eradiation antenna and symmetrical monopolar sub antenna are all decreased or increased accordingly
Branch, thus each self-forming Simple Harmonics or multifrequency resonance.
The present invention also provides for a kind of MIMO communication system, encourages including the compact described in any one in previous embodiment
The high-isolation antenna of floor orthogonal radiation.
After using technique scheme, the present invention has the advantages that compared to existing technology
Utilize a fritter headroom on PCB floor to load loop eradiation antenna, drive PCB flooring radiation to realize double frequency and cover
Lid, uses symmetrical monopolar sub antenna to drive PCB flooring radiation simultaneously again, realizes double frequency equally and covers, and both modes encourage
Flooring radiation electric current is the most orthogonal, improves the isolation of the two antenna, in the case of wireless terminal limited space, utilizes
The orthogonality of electric current, realizes high-isolation double frequency in very limited amount of space and covers, and isolation can reach more than 25dB, can have
Effect improves the message capacity of MIMO communication system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high-isolation antenna of the compact excitation floor orthogonal radiation of the embodiment of the present invention；
Fig. 2 is the structural representation of the loop eradiation antenna of the embodiment of the present invention；
Fig. 3 is the structural representation of the symmetrical monopolar sub antenna of the embodiment of the present invention；
Fig. 4 is the return loss schematic diagram of the loop eradiation antenna of the embodiment of the present invention；
Fig. 5 is the return loss schematic diagram of the symmetrical monopolar sub antenna of the embodiment of the present invention；
Fig. 6 is loop eradiation antenna and the isolation schematic diagram of symmetrical monopolar sub antenna of the embodiment of the present invention；
Fig. 7 is loop eradiation antenna and the radiation efficiency curve of symmetrical monopolar sub antenna of the embodiment of the present invention；
Fig. 8 and 9 is the loop eradiation antenna 2.45GHz of the embodiment of the present invention respectively and 5.5GHz frequency floor electric current divides
Butut；
Figure 10 and 11 is symmetrical monopolar sub antenna 2.45GHz and the 5.5GHz frequency floor electric current of the embodiment of the present invention respectively
Scattergram；
Figure 12 is the structural representation of the symmetrical monopolar sub antenna of another embodiment of the present invention；
Figure 13 is the structural representation of the symmetrical monopolar sub antenna of further embodiment of this invention；
Figure 14 is the structural representation of the symmetrical monopolar sub antenna of yet another embodiment of the invention.
Detailed description of the invention
Understandable, below in conjunction with the accompanying drawings to the present invention for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
Detailed description of the invention be described in detail.
Elaborate a lot of detail in the following description so that fully understanding the present invention.But the present invention can be with
Much being different from alternate manner described here to implement, those skilled in the art can be in the situation without prejudice to intension of the present invention
Under do similar popularization, therefore the present invention is not limited by following public being embodied as.
Referring to Fig. 1, the compact of the present embodiment encourages the high-isolation antenna of floor orthogonal radiation, including: a PCB
(Printed Circuit Board, printed circuit board) floor 1, loop eradiation antenna 2 and a symmetrical monopole
(Monopole) antenna 3.
PCB floor 1 has clearance zone on one edge, and clearance zone refers to the non-conductive material area of coverage, except this clearance zone
Outside be non-clearance zone the most entirely.The size of clearance zone be enough to accommodate loop eradiation antenna.The shape on PCB floor 1 can
Thinking rectangle, square or polygon etc., the shape of clearance zone can be rectangle, square or polygon etc., the most not
Limit.
Loop eradiation antenna 2 is arranged on the clearance zone on PCB floor 1, and is connected with the non-clearance zone on PCB floor 1,
Two frequency ranges, form two resonant tanks by two different branches excitation PCB floor 1 radiation.That is, loop eradiation antenna
2 and PCB floors 1 are collectively forming under resonant tank, and two different frequent points signals drivings, it is achieved double-frequency resonance.
Symmetrical monopolar sub antenna 3 is arranged on the top of the clearance zone on PCB floor 1, including feeder line, low frequency symmetric part of matrix and height
Frequently symmetric part of matrix.Low frequency symmetric part of matrix and the high-frequency symmetrical branch non-clearance zone by feeder line connection PCB floor 1, at two frequencies
Section, encourages PCB floor 1 radiation to form two resonance paths by low frequency symmetric part of matrix and Liang Ge branch of high-frequency symmetrical branch.Also
That is, symmetrical monopolar sub antenna 3 is under the signal of the similar frequency bands with loop eradiation antenna 2 drives, and encourages identical PCB floor
1 forms resonance path, realizes another double-frequency resonance under two frequency bins.
Wherein, the electric current that loop eradiation antenna and symmetrical monopolar sub antenna generate on each band excitation PCB floor is just
Handing over, loop eradiation antenna 2, symmetrical monopolar sub antenna 3 and PCB floor 1 constitute a high-isolation dual-band antenna.In other words, ring
Road eradiation antenna 2 and symmetrical monopolar sub antenna 3 each autoexcitation PCB floor 1 form double-frequency resonance, and two antennas are humorous at each frequency
Electric current when shaking is the most mutually orthogonal, thus the isolation of two antenna double-frequency resonance is higher.
The concrete structure of loop eradiation antenna 2 and symmetrical monopolar sub antenna 3 can be designed as required or adjust.
Ensureing that loop eradiation antenna 2 is arranged on the clearance zone surface on PCB floor 1, excitation floor 1 forms double-frequency resonance, and symmetrical
Monopole antenna 3 is arranged on the top of the clearance zone on PCB floor 1, and excitation floor 1 forms double-frequency resonance simultaneously, and two antennas
Resonance current is orthogonal.Without directly contact between loop eradiation antenna 2 and symmetrical monopolar sub antenna 3.
In a specific embodiment, referring to Fig. 2, loop eradiation antenna may include that T-shaped conduction band branch, including
Constitute the first branch 23 of lateral part and the second branch 24, constitute the 3rd branch 25 of vertical section, the first branch 23 and the
Two branches 24 extend to the both sides of the 3rd branch 25, and the end of the first branch 23 is connected to PCB by the first lumped capacity 51
On the non-clearance zone on floor 1；The end of the second branch 24 is connected to the non-clearance zone on PCB floor 1 by the second lumped capacity 52
On；4th branch 21, one end is connected to the 3rd branch 25, and the other end is connected on the non-clearance zone on PCB floor 1, and with PCB ground
The junction of the non-clearance zone of plate 1 connects feed 4.Wherein, the 4th 25, first branch of branch of branch the 21, the 3rd 23, first lump electricity
Hold 51 and constitute the first resonant tank with the non-clearance zone on PCB floor 1, the 4th branch 21, the 3rd the 25, second branch 24 of branch, the
Two lumped capacities 52 constitute the second resonant tank with the non-clearance zone on PCB floor 1.
First branch 23 and the second branch 24 are arranged along the outer side edges of PCB floor 1 clearance zone, and the first branch 24 and second
The along the line of branch 24 is all clearance zone.4th branch 21 be connected to the left side of the 3rd branch 25 or the PCB floor 1 on right side non-only
On dead zone.
Further, loop eradiation antenna also includes quintafurcation 22.One end of quintafurcation 22 is connected to the 3rd
The end of branch 25, the other end is connected on the non-clearance zone on PCB floor 1 by the 3rd lumped capacity 53；4th branch 21,
Quintafurcation the 22, the 3rd lumped capacity 53 constitutes matching circuit with the non-clearance zone on PCB floor 1.
The preferred U-shaped structure of attachment structure of quintafurcation 22 and the 4th branch 21.Quintafurcation 22 can be along the 3rd branch
The extended line of 25 is arranged.
Regulate the first lumped capacity 51 and the 4th branch 25 of the 21, first branch the 23, the 3rd of branch can make with tuned frequency
Its resonance is in the first resonance band.Regulate the second lumped capacity 52 and the 4th branch 25 of the 21, second branch the 24, the 3rd of branch can
With tuned frequency so that it is resonance is in the second resonance band.4th branch 21, quintafurcation the 22, the 3rd lumped capacity 53 composition
Join loop, regulate the 3rd lumped capacity 53 and the 4th branch 21, quintafurcation 22, the first resonance band and second can be regulated
The notch depth of resonance band.
The low frequency symmetric part of matrix of symmetrical monopolar sub antenna 3 and high-frequency symmetrical branch may be located at homonymy or the heteropleural of feeder line,
Feeder line one end is connected on the line of symmetry of low frequency symmetric part of matrix and the line of symmetry of high-frequency symmetrical branch, other end connection PCB floor
Non-clearance zone.
Described low frequency symmetric part of matrix includes the U-shaped sheet metal that two openings are relative, and the opening one side phase of two U-shaped sheet metals
Even, described high-frequency symmetrical branch includes two straight sheet metals, and one end of two straight sheet metals is connected；
In one embodiment, referring to Fig. 1 and Fig. 3, symmetrical monopolar sub antenna 3 is located at above clearance zone, is particularly located at ring
The surface of road eradiation antenna 2, low frequency symmetric part of matrix 31 and high-frequency symmetrical branch 32 are arranged on the homonymy of feeder line 33.Low frequency pair
Claim the U-shaped sheet metal that 31 two openings of branch are relative, and the opening one side of two U-shaped sheet metals is connected；High-frequency symmetrical branch 32 wraps
Include two straight sheet metals, and one end of two straight sheet metals is connected.Low frequency symmetric part of matrix 31 and the line of symmetry of high-frequency symmetrical branch 32
It is parallel to the 3rd branch 25 of loop eradiation antenna.The opening one side of two U-shaped sheet metals is connected and refers to, two U-shaped sheet metals
After position is oppositely arranged, the same side of two openings couples together, and opposite side does not connects.
In another embodiment, referring to Figure 12, symmetrical monopolar sub antenna 3b is located at above clearance zone, is particularly located at loop
The surface of eradiation antenna 2, low frequency symmetric part of matrix 31b and high-frequency symmetrical branch 32b are arranged on the heteropleural of feeder line 33b.Low frequency
The U-shaped sheet metal that two openings of symmetric part of matrix 31b are relative, and the opening one side of two U-shaped sheet metals is connected；High-frequency symmetrical branch
32b includes two straight sheet metals, and one end of two straight sheet metals is connected.Low frequency symmetric part of matrix 31b's and high-frequency symmetrical branch 32b
Line of symmetry is parallel to the 3rd branch 25 of loop eradiation antenna 2.
In yet another embodiment, referring to Figure 13, symmetrical monopolar sub antenna 3c is located at above clearance zone, is particularly located at loop
The surface of eradiation antenna 2, low frequency symmetric part of matrix 31c and high-frequency symmetrical branch 32c are arranged on the heteropleural of feeder line 33c.Low frequency
Symmetric part of matrix 31c can include two straight sheet metals, and one end of two straight sheet metals is connected, and high-frequency symmetrical branch 32c is opened by two
The U-shaped sheet metal that mouth is relative, and the opening one side of two U-shaped sheet metals is connected.Low frequency symmetric part of matrix 31c and high-frequency symmetrical branch
The line of symmetry of 32c is parallel to the 3rd branch 25 of loop eradiation antenna 2.
In a further embodiment, referring to Figure 14, symmetrical monopolar sub antenna 3a is located at above clearance zone, is particularly located at loop
The surface of eradiation antenna 2, low frequency symmetric part of matrix 31a and high-frequency symmetrical branch 32a are arranged on the homonymy of feeder line 33a.Low frequency
Symmetric part of matrix 31a and high-frequency symmetrical branch 32a all includes two straight sheet metals, and one end of two straight sheet metals is connected.Low frequency pair
The line of symmetry claiming branch 31a and high-frequency symmetrical branch 32a is parallel to the 3rd branch 25 of loop eradiation antenna 2.
It is, of course, also possible to there is more shape and structure.Low frequency symmetric part of matrix and high-frequency symmetrical branch also can equal two openings
Relative U-shaped sheet metal, and the opening one side of two U-shaped sheet metals is connected.Or, the low frequency symmetric part of matrix of previous embodiment and/
Or high-frequency symmetrical branch replaces with to be connected by the vertical part free end of two L-type sheet metals and is formed.
Low frequency symmetric part of matrix and high-frequency symmetrical branch couple together at the position of point of symmetry and are connected on feeder line.Low frequency pair
Claim the shape size of symmetrical both sides of branch and high-frequency symmetrical branch the most without limitation, can be on the basis of previous embodiment
Change, such as, can replace with V-type etc. by U-shaped, as long as the symmetrical both sides of guarantee low frequency symmetric part of matrix are isometric, shape is identical；High
Frequently the symmetrical both sides of symmetric part of matrix are isometric, shape is identical.
It is also preferred that the left symmetrical monopolar sub antenna is positioned at the surface of the clearance zone on PCB floor.
Preferably, PCB floor can be that one side covers copper dielectric-slab, and does not cover copper at clearance zone.Certainly, PCB base plate also may be used
Thinking that one side covers the dielectric-slab of other conductive layers, clearance zone does not cover this other conductive layers.
The embodiment of the present invention is not limited to dual-band antenna, it is also possible to form single-frequency or multiple antennas.Loop eradiation antenna and right
Claim monopole antenna that corresponding branch be all decreased or increased, thus each self-forming Simple Harmonics or multifrequency resonance.It is decreased or increased
Adjustment can be designed according to actual needs in corresponding numbers of branches, structure and position, do not limit.
Design a high-isolation dual-band antenna according to embodiments of the present invention.Referring to Fig. 4, loop eradiation antenna echo damages
Consumption, with the return loss of-4.5dB as reference point, low frequency bandwidth covers 2300MHz to 2500MHz, high frequency covering 5120MHz and arrives
5860MHz.Referring to Fig. 5, symmetrical monopolar sub antenna return loss, with the return loss of-5dB as reference point, low frequency bandwidth covers
2320MHz to 2500MHz, high frequency covers 5000MHz to 5960MHz.Referring to Fig. 6, the isolation between two antennas, at low frequency
In the range of 2320MHz to 2500MHz, isolation is up to more than 25dB, in the range of high frequency 5000MHz to 5960MHz, isolation
Up to more than 28dB.Referring to Fig. 7, the radiation efficiency of two antennas, it is respectively provided with preferably radiation efficiency.Fig. 8-9 is loop ground spoke
Penetrate CURRENT DISTRIBUTION on antenna 2.45GHz and 5.5GHz frequency floor, Figure 10-11 be symmetrical monopolar sub antenna 2.45GHz and
CURRENT DISTRIBUTION on 5.5GHz frequency floor, from the figure, it can be seen that for symmetrical monopolar sub antenna, in branch 31 and 32
Electric current is reverse, thus the two branch will not radiated electromagnetic wave, they act as encourage flooring radiation, simultaneously I
See at 2.45GHz frequency, loop eradiation antenna and symmetrical monopolar sub antenna excitation floor on electric current be just just
Handing over, so isolation is preferable, on 5.5GHz frequency floor, electric current is the most orthogonal equally, and isolation also can be preferable.
The present invention also provides for a kind of MIMO communication system, encourages including the compact described in any one in previous embodiment
The high-isolation antenna of floor orthogonal radiation.
The embodiment of the present invention utilizes a fritter headroom on PCB floor to load loop eradiation antenna, drives PCB flooring radiation
Realize double frequency to cover, use symmetrical monopolar sub antenna to drive PCB flooring radiation simultaneously again, realize double frequency equally and cover, both
The flooring radiation electric current that mode encourages is the most orthogonal, improves the isolation of the two antenna, in wireless terminal limited space
In the case of, utilizing the orthogonality of electric current, in very limited amount of space, realize high-isolation double frequency cover, isolation can reach
More than 25dB, can be effectively improved the message capacity of MIMO communication system.
Although the present invention is open as above with preferred embodiment, but it is not for limiting claim, any this area
Technical staff without departing from the spirit and scope of the present invention, can make possible variation and amendment, therefore the present invention
Protection domain should be defined in the range of standard with the claims in the present invention.
Claims (11)
1. the high-isolation antenna of a compact excitation floor orthogonal radiation, it is characterised in that including:
One PCB floor, has clearance zone on an edge；
One loop eradiation antenna, is arranged on the clearance zone on described PCB floor, and with the non-clearance zone on described PCB floor even
Connecing, the Liang Ge branch excitation PCB flooring radiation of described loop eradiation antenna forms two resonant tanks；And
One symmetrical monopole antenna, is arranged on the top of the clearance zone on described PCB floor, including feeder line, low frequency symmetric part of matrix and
High-frequency symmetrical branch, described low frequency symmetric part of matrix and high-frequency symmetrical branch connect the non-clearance zone on described PCB floor by feeder line,
PCB flooring radiation is encouraged to form two resonance paths by described low frequency symmetric part of matrix and Liang Ge branch of high-frequency symmetrical branch；
Wherein, the electric current that described loop eradiation antenna and symmetrical monopolar sub antenna generate on each band excitation PCB floor is just
Hand over.
2. the high-isolation antenna of compact excitation floor as claimed in claim 1 orthogonal radiation, it is characterised in that described right
The low frequency symmetric part of matrix of title monopole antenna and high-frequency symmetrical branch are positioned at homonymy or the heteropleural of described feeder line, and feeder line one end connects
On the line of symmetry of low frequency symmetric part of matrix and the line of symmetry of high-frequency symmetrical branch, the non-headroom on the described PCB floor of other end connection
District.
3. the high-isolation antenna of compact excitation floor as claimed in claim 1 orthogonal radiation, it is characterised in that described low
Frequently the symmetrical both sides of symmetric part of matrix are isometric, shape is identical；The symmetrical both sides of high-frequency symmetrical branch are isometric, shape is identical.
4. the high-isolation antenna of compact excitation floor as claimed in claim 3 orthogonal radiation, it is characterised in that described low
Frequently symmetric part of matrix includes the U-shaped sheet metal that two openings are relative, and the opening one side of two U-shaped sheet metals is connected, described high frequency pair
Claim branch to include two straight sheet metals, and one end of two straight sheet metals is connected；
Or, described low frequency symmetric part of matrix includes two straight sheet metals, and one end of two straight sheet metals is connected, described high-frequency symmetrical
Branch includes the U-shaped sheet metal that two openings are relative, and the opening one side of two U-shaped sheet metals is connected；
Or, described low frequency symmetric part of matrix and described high-frequency symmetrical branch all include two straight sheet metals, and two straight sheet metals
One end is connected；
Or, the U-shaped sheet metal that described low frequency symmetric part of matrix is relative by including two openings with described high-frequency symmetrical branch, and
The opening one side of two U-shaped sheet metals is connected.
5. the high-isolation antenna of compact excitation floor as claimed in claim 4 orthogonal radiation, it is characterised in that described low
Frequently symmetric part of matrix and/or described high-frequency symmetrical branch are formed by the vertical part free end connection of two L-type sheet metals.
6. the high-isolation antenna of compact excitation floor as claimed in claim 1 orthogonal radiation, it is characterised in that described right
Title monopole antenna is positioned at the surface of the clearance zone on described PCB floor.
7. the high-isolation antenna of compact excitation floor as claimed in claim 1 orthogonal radiation, it is characterised in that described
PCB floor is that one side covers copper dielectric-slab, and does not cover copper at described clearance zone.
8. the high-isolation antenna of compact excitation floor as claimed in claim 1 orthogonal radiation, it is characterised in that described ring
Road eradiation antenna includes:
T-shaped conduction band branch, including the first branch and the second branch, the 3rd branch of composition vertical section of composition lateral part,
Described first branch and the second branch extend to the both sides of described 3rd branch, and the end of described first branch is by the first collection
Total capacitance is connected on the non-clearance zone on PCB floor；The end of the second branch is connected to PCB floor by the second lumped capacity
On non-clearance zone；
4th branch, one end is connected to the 3rd branch, and the other end is connected on the non-clearance zone on PCB floor, and non-with PCB floor
The junction of clearance zone connects feed；
Described 4th branch, the 3rd branch, the first branch, that the first lumped capacity and the non-clearance zone on PCB floor constitute first is humorous
Shake loop, and described 4th branch, the 3rd branch, the second branch, the second lumped capacity constitute second with the non-clearance zone on PCB floor
Resonant tank.
9. the high-isolation antenna of compact excitation floor as claimed in claim 7 orthogonal radiation, it is characterised in that described ring
Road eradiation antenna also includes quintafurcation, and one end of described quintafurcation is connected to the end of the 3rd branch, and the other end leads to
Cross the 3rd lumped capacity to be connected on the non-clearance zone on PCB floor；Described 4th branch, quintafurcation, the 3rd lumped capacity with
The non-clearance zone on PCB floor constitutes matching circuit.
10. the high-isolation antenna of compact excitation floor as claimed in claim 1 orthogonal radiation, it is characterised in that loop
Eradiation antenna and symmetrical monopolar sub antenna are all decreased or increased corresponding branch, thus each self-forming Simple Harmonics or multifrequency are humorous
Shake.
11. 1 kinds of MIMO communication system, it is characterised in that include the compact excitation described in any one in claim 1-9
The high-isolation antenna of floor orthogonal radiation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610666575.6A CN106058456B (en) | 2016-08-12 | 2016-08-12 | The high-isolation antenna and its MIMO communication system of compact excitation floor orthogonal radiation |
| PCT/CN2016/108795 WO2018028101A1 (en) | 2016-08-12 | 2016-12-07 | Compact-type high-isolation antenna for exciting orthogonal radiation of floor, and mimo communication system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610666575.6A CN106058456B (en) | 2016-08-12 | 2016-08-12 | The high-isolation antenna and its MIMO communication system of compact excitation floor orthogonal radiation |
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| Publication Number | Publication Date |
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| CN106058456A true CN106058456A (en) | 2016-10-26 |
| CN106058456B CN106058456B (en) | 2017-09-19 |
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| CN201610666575.6A Active CN106058456B (en) | 2016-08-12 | 2016-08-12 | The high-isolation antenna and its MIMO communication system of compact excitation floor orthogonal radiation |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252848A (en) * | 2016-08-30 | 2016-12-21 | 上海安费诺永亿通讯电子有限公司 | A kind of compact type high-isolation antenna |
| CN107681261A (en) * | 2017-09-07 | 2018-02-09 | 深圳市盛路物联通讯技术有限公司 | Antenna assembly and Wireless Telecom Equipment |
| WO2018028101A1 (en) * | 2016-08-12 | 2018-02-15 | 上海安费诺永亿通讯电子有限公司 | Compact-type high-isolation antenna for exciting orthogonal radiation of floor, and mimo communication system thereof |
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| CN110518339A (en) * | 2019-08-23 | 2019-11-29 | 信维创科通信技术（北京）有限公司 | Low-frequency antenna structure and mobile device |
| CN111628274A (en) * | 2019-02-27 | 2020-09-04 | 华为技术有限公司 | Antenna device and electronic apparatus |
| CN114447595A (en) * | 2022-01-13 | 2022-05-06 | 西安电子科技大学 | Double-port-ring antenna with zero clearance and high isolation characteristics and mobile terminal equipment |
| CN115000675A (en) * | 2022-06-06 | 2022-09-02 | 青岛海信移动通信技术股份有限公司 | WiFi6E antenna and terminal equipment |
| CN116417794A (en) * | 2023-04-02 | 2023-07-11 | 深圳汉阳天线设计有限公司 | High-isolation MIMO antenna |
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| WO2018028101A1 (en) * | 2016-08-12 | 2018-02-15 | 上海安费诺永亿通讯电子有限公司 | Compact-type high-isolation antenna for exciting orthogonal radiation of floor, and mimo communication system thereof |
| CN106252848A (en) * | 2016-08-30 | 2016-12-21 | 上海安费诺永亿通讯电子有限公司 | A kind of compact type high-isolation antenna |
| CN107681261A (en) * | 2017-09-07 | 2018-02-09 | 深圳市盛路物联通讯技术有限公司 | Antenna assembly and Wireless Telecom Equipment |
| CN108493600A (en) * | 2018-04-08 | 2018-09-04 | 深圳市信维通信股份有限公司 | A kind of 5G mimo antennas structure |
| CN108493600B (en) * | 2018-04-08 | 2024-01-16 | 深圳市信维通信股份有限公司 | 5G MIMO antenna structure |
| CN111628274B (en) * | 2019-02-27 | 2022-10-04 | 华为技术有限公司 | Antenna device and electronic apparatus |
| US11949177B2 (en) | 2019-02-27 | 2024-04-02 | Huawei Technologies Co., Ltd. | Antenna apparatus and electronic device |
| CN111628274A (en) * | 2019-02-27 | 2020-09-04 | 华为技术有限公司 | Antenna device and electronic apparatus |
| CN109888477B (en) * | 2019-03-01 | 2023-12-19 | 深圳市信维通信股份有限公司 | Dual-frequency dual-polarized MIMO antenna system applied to 5G communication and mobile terminal |
| CN109888477A (en) * | 2019-03-01 | 2019-06-14 | 深圳市信维通信股份有限公司 | Dual-band and dual-polarization mimo antenna system and mobile terminal applied to 5G communication |
| CN109861000A (en) * | 2019-03-01 | 2019-06-07 | 深圳市信维通信股份有限公司 | Compact 5G mimo antenna system and mobile terminal |
| CN109861000B (en) * | 2019-03-01 | 2024-05-31 | 深圳市信维通信股份有限公司 | Compact 5G MIMO antenna system and mobile terminal |
| CN110518339A (en) * | 2019-08-23 | 2019-11-29 | 信维创科通信技术（北京）有限公司 | Low-frequency antenna structure and mobile device |
| CN114447595A (en) * | 2022-01-13 | 2022-05-06 | 西安电子科技大学 | Double-port-ring antenna with zero clearance and high isolation characteristics and mobile terminal equipment |
| CN115000675A (en) * | 2022-06-06 | 2022-09-02 | 青岛海信移动通信技术股份有限公司 | WiFi6E antenna and terminal equipment |
| CN116417794A (en) * | 2023-04-02 | 2023-07-11 | 深圳汉阳天线设计有限公司 | High-isolation MIMO antenna |
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