CN108879112A - Aerial array and terminal - Google Patents
Aerial array and terminal Download PDFInfo
- Publication number
- CN108879112A CN108879112A CN201710335692.9A CN201710335692A CN108879112A CN 108879112 A CN108879112 A CN 108879112A CN 201710335692 A CN201710335692 A CN 201710335692A CN 108879112 A CN108879112 A CN 108879112A
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- China
- Prior art keywords
- antenna
- metal edge
- edge frame
- frame
- earth plate
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- 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
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
This application discloses a kind of aerial arrays, belong to antenna technical field.The aerial array includes：First antenna, the second antenna and earth plate；First antenna includes the first metal edge frame in terminal, and the first metal edge frame is coplanar with earth plate, and the first metal edge frame is connect with earth plate and the first feeding point respectively, and there are gaps between the first metal edge frame and earth plate；Second antenna includes the second metal edge frame in terminal, and the second metal edge frame and earth plate are non-coplanar, and, the second metal edge frame is parallel with earth plate, and the second metal edge frame is connect with earth plate and the second feeding point respectively.The polarization direction of first antenna and the second antenna in the application aerial array is orthogonal, therefore the coupling between first antenna and the second antenna is smaller, therefore, aerial array provided by the present application can reduce the coupling between antenna under the premise of being not provided with decoupling assembly, this aspect reduces the complexity of Antenna Design, on the other hand also reduces the size of antenna.
Description
Technical field
This application involves antenna technical field, in particular to a kind of aerial array and terminal.
Background technique
In practical applications, in order to improve terminal to the throughput of the communication information, two antennas are typically provided in terminal,
In order to avoid coupling between antenna, the distance between antenna in terminal usually requires the electromagnetic wavelength greater than aerial radiation
1/2 times, wherein the coupling between antenna refers to the phenomenon that signal between antenna interacts.However, practical application
In, the antenna in terminal may be needed in lower band operation, and the electromagnetic wavelength of aerial radiation is larger at this time, accordingly
Ground, in order to avoid the coupling between antenna, the distance needed between adjacent antenna is also larger, for example, antenna is at 900 megahertzs
When working in frequency, the electromagnetic wavelength of radiation is 333 millimeters, then the distance between adjacent antenna needs to be set as 166 millis
Meter or more just can guarantee that isolation between antennae meets job requirement.It will be apparent that so big day is arranged in the terminals such as mobile phone
Distance between line is unpractical.
In the related technology, for above situation, can usually be arranged in antennas neutralize line, stitch minor matters, parasitic minor matters
Decoupling assemblies are waited to reduce the coupling between antenna, the addition of decoupling assembly can reduce under the premise of coupling between reducing antenna
The distance between antenna.
But in antennas on the one hand setting decoupling assembly will increase the complexity of Antenna Design, on the other hand can also increase
Add the overall dimensions of antenna.
Summary of the invention
In order to solve the problems, such as that prior art antenna complex degree is larger and antenna overall dimensions are larger, the embodiment of the present invention is mentioned
A kind of aerial array and terminal are supplied.The technical solution is as follows：
In a first aspect, providing a kind of aerial array, the aerial array includes：First antenna, the second antenna and ground connection
Plate；The first antenna includes the first metal edge frame in terminal, and first metal edge frame is coplanar with the earth plate, described
First metal edge frame is connect with the earth plate and the first feeding point respectively, between first metal edge frame and the earth plate
There are gaps；Second antenna includes the second metal edge frame in the terminal, second metal edge frame and the ground connection
Plate is non-coplanar, and, second metal edge frame is parallel with the earth plate, second metal edge frame respectively with the earth plate
It is connected with the second feeding point.
First antenna provided in an embodiment of the present invention includes the first metal edge frame as radiator, first metal edge frame
It is coplanar with earth plate, and there are gap, in the first feeding point feed, one can be formed between the first metal edge frame and earth plate
A loop aerial.The loop aerial can generate the basic model of one times of wavelength in required low frequency at center frequency point
Resonance, and a relatively wide resonance frequency band can be obtained, so as to cover mobile terminal device low-frequency range, due to
One metal edge frame and earth plate are coplanar, therefore the polarization direction of first antenna is parallel with earth plate.
Similarly, when the second feeding point is fed, the second metal edge frame and earth plate of the radiator as the second antenna
Between can also form loop aerial, to generate radiation.Unlike, the second antenna element is not coplanar with earth plate, and
It is to be supported using dielectric-slab, forms the loop aerial in a perpendicular.In this way, the second antenna element is to system
The requirement of the not no headroom in ground, meets the design requirement of narrow frame instantly or even Rimless.In addition, the feeding point of the second antenna element
Selection is at the intermediate position of top frame, so that the second antenna element is divided into two loop aerials.By feeding point and connect
The reasonable selection in place, can be controlled separately the matching of the resonance length of two loop aerials in the second antenna element, to produce
Raw reasonable resonance point, and by the common covering completed to required frequency range of the combination of two resonance points.Further, since the second metal
Frame is non-coplanar with earth plate, and, the second metal edge frame is parallel with earth plate, therefore, the polarization direction of the second antenna and ground connection
Plate is vertical.
Since the polarization direction of first antenna and the second antenna is orthogonal, the electricity of first antenna and the second aerial radiation
The mutual influence of magnetic wave is smaller, so that the coupling between first antenna and the second antenna is smaller, so the embodiment of the present invention
The first antenna of offer and the second antenna can avoid the coupling between antenna, this side under the premise of being not provided with decoupling assembly
Face reduces the complexity of first antenna and the second Antenna Design, on the other hand also reduces the ruler of first antenna and the second antenna
It is very little.
Optionally, the both ends of first metal edge frame are connect with the earth plate respectively, form one and the ground connection
The coplanar ring structure of plate；First feeding point is connect with the first feed connection point on first metal edge frame, and described
One feed connection point is unequal at a distance from the both ends of first metal edge frame, to form a loop aerial.
In practical applications, the frequency point that the size of radiant section generates resonance with the radiant section is inversely proportional, therefore, when needs exist
When generating the basic model resonance of one times of wavelength at the center frequency point of low frequency, first antenna generates the basic model resonance
The size needs of radiant section are larger, and in this application, the first metal edge frame can be divided into size not phase by the first feed connection point
Same two parts (that is to say different two radiant sections of size), and by larger-size radiant section in required low frequency
The basic model resonance that one times of wavelength is generated at center frequency point, can reduce the overall dimensions of the first metal edge frame in this way.
Optionally, the first antenna include two the first earthing switches and two first reconstruct switching groups, described first
The both ends of metal edge frame pass through first earthing switch respectively and connect with the earth plate；The first reconstruct switching group
It is disposed adjacent respectively with the both ends of first metal edge frame, the first reconstruct switching group includes that at least one first reconstruct is opened
It closes；Each first reconstruct switch is connect with first metal edge frame and the earth plate respectively.
By the first earthing switch of setting and the first reconstruct switching group, and control the first earthing switch and the first reconstruct switch
The open and close of each reconstruct switch in group, thus it is possible to vary the position that the first metal edge frame is connect with earth plate, to change
The size for becoming the radiant section of first antenna, enables first antenna as needed in different band operations.
Optionally, first metal edge frame is right by frame in sequentially connected first left border, first and first
The U-frame of side frame composition, first left border are located at the left side of the terminal, and first Right Border is located at described
The right side of terminal, frame is located at the top or bottom of the terminal in described first；First feed connection point is arranged in institute
State the side of frame in separate described first on the first left border.
Optionally, the both ends of second metal edge frame are connect with the earth plate respectively；It is arranged in second metal
The second feed connection point in the middle part of frame is connect with second feeding point, to form a loop aerial.
Optionally, second feed connection point is connect by lumped inductance with second feeding point；Second gold medal
Belonging to frame includes first capacitor partition and the partition of the second capacitor；First capacitor partition be located at second feed connection point and
Between one end of second metal edge frame, the second capacitor partition is located at second feed connection point and second gold medal
Between the other end for belonging to frame.
The second antenna, which can be reduced, by setting lumped inductance, first capacitor partition and the partition of the second capacitor generates basic mould
The frequency point of formula resonance, thus in the size for objectively reducing the second antenna.
Optionally, second antenna include two the second earthing switches and two second reconstruct switching groups, described second
The both ends of metal edge frame pass through second earthing switch respectively and connect with the earth plate；The second reconstruct switching group
It is disposed adjacent respectively with the both ends of second metal edge frame, the second reconstruct switching group includes that at least one second reconstruct is opened
It closes；Each second reconstruct switch is connect with second metal edge frame and the earth plate respectively.
By the second earthing switch of setting and the second reconstruct switching group, and control the second earthing switch and the second reconstruct switch
The open and close of the reconstruct switch of each in group second, thus it is possible to vary the position that the second metal edge frame is connect with earth plate, from
And change the size of the radiant section of the second antenna, enable the second antenna as needed in different band operations.
Optionally, second metal edge frame is right by frame in the second left border successively arranged, second and second
The U-frame of side frame composition, second left border are located at the left side of the terminal, and second Right Border is located at described
The right side of terminal, frame is located at the top or bottom of the terminal in described second；
Second feed connection point is located at the middle part of frame in described second.
Optionally, there are first capacitor partitions between frame in second left border and described second；It is described
There are second capacitor partitions between frame in second Right Border and described second.
Second aspect provides a kind of terminal, which includes any aerial array of above-mentioned first aspect.
Technical solution bring beneficial effect provided in an embodiment of the present invention is：
By the way that the first metal edge frame of first antenna radiator will be used as to be set as coplanar with earth plate, will be used as second day
Second metal edge frame of line is set as that earth plate is non-coplanar and parallel with earth plate, so that the pole of first antenna and the second antenna
Change direction it is orthogonal so that the electromagnetic wave of first antenna and the second aerial radiation it is mutual influence it is smaller, that is to say makes
The coupling obtained between first antenna and the second antenna is smaller, therefore, first antenna provided in an embodiment of the present invention and the second antenna
The coupling between antenna can be reduced under the premise of being not provided with decoupling assembly, this aspect reduces first antenna and second day
The complexity of line design, on the other hand also reduces the size of first antenna and the second antenna.
Detailed description of the invention
Fig. 1-1 is a kind of structural schematic diagram of aerial array provided in an embodiment of the present invention.
Fig. 1-2 is the schematic diagram that a kind of second feed connection point provided in an embodiment of the present invention is connect with the second feeding point.
Fig. 1-3 is that the amplification of frame adjacent part in a kind of second left border provided in an embodiment of the present invention and second is bowed
View.
Fig. 1-4 is that the amplification of frame adjacent part in a kind of second Right Border provided in an embodiment of the present invention and second is bowed
View.
Fig. 1-5 is a kind of enlarged diagram of one end of first metal edge frame provided in an embodiment of the present invention.
Fig. 1-6 is a kind of enlarged diagram of one end of second metal edge frame provided in an embodiment of the present invention.
Fig. 2 is first antenna to be provided only in a kind of terminal provided in an embodiment of the present invention and the first antenna works in
The schematic diagram of the return loss of first antenna when in LTE700 frequency range.
Fig. 3 be the second antenna is provided only in a kind of terminal provided in an embodiment of the present invention and second Antenna Operation in
The schematic diagram of the return loss of second antenna when in LTE700 frequency range.
Fig. 4 is first antenna to be provided only in a kind of terminal provided in an embodiment of the present invention and the first antenna works in
The schematic diagram of the return loss of first antenna when in GSM850/900 frequency range.
Fig. 5 be the second antenna is provided only in a kind of terminal provided in an embodiment of the present invention and second Antenna Operation in
The schematic diagram of the return loss of second antenna when in GSM850/900 frequency range.
Fig. 6 is that first antenna and the second antenna and the first antenna are provided in a kind of terminal provided in an embodiment of the present invention
The signal of the return loss and isolation of the first antenna and the second antenna when being worked in LTE700 frequency range with the second antenna
Figure.
Fig. 7 is that first antenna and the second antenna and the first antenna are provided in a kind of terminal provided in an embodiment of the present invention
The return loss and isolation of the first antenna and the second antenna when being worked in GSM850/900 frequency range with the second antenna
Schematic diagram.
Fig. 8 is a kind of schematic diagram for working in the ECC of aerial array when in LTE700 frequency range provided in an embodiment of the present invention.
Fig. 9 is a kind of showing for the ECC of aerial array when working in GSM850/900 frequency range provided in an embodiment of the present invention
It is intended to.
Figure 10 is a kind of gross efficiency for working in first antenna when in GSM850/900 frequency range provided in an embodiment of the present invention
Schematic diagram.
Figure 11 is a kind of gross efficiency of second antenna when working in GSM850/900 frequency range provided in an embodiment of the present invention
Schematic diagram.
Figure 12 is a kind of showing for the gross efficiency of first antenna when working in LTE700 frequency range provided in an embodiment of the present invention
It is intended to.
Figure 13 is a kind of showing for the gross efficiency of second antenna when working in LTE700 frequency range provided in an embodiment of the present invention
It is intended to.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application embodiment party
Formula is described in further detail.
Currently, multiple-input and multiple-output (English：Multiple-Input Multiple-Output；Referred to as：MIMO) technology
Have become one of the core technology of wireless communication field.Under normal conditions, day there are two being generally comprised in MIMO communication system
Line, in practical applications, it is possible that the phenomenon that coupling, that is to say may between two antennas between two antennas
There is the phenomenon that signal interacts, this can seriously affect the communication quality of MIMO communication system.
In order to avoid the coupling between antenna, the distance between two antennas in MIMO communication system should generally be greater than
1/2 times of the electromagnetic wavelength of aerial radiation, however, when two antennas are in lower band operation, due to terminal size
Limitation, the distance between two antennas are likely to 1/2 times that is unable to reach the electromagnetic wavelength of aerial radiation.For example, day
Line when working in 900 megahertzs of frequency, radiation electromagnetic wavelength be 333 millimeters, then between two antennas away from
From needing to be set as 166 millimeters or more the couplings being just avoided that between antenna, this is very unrealistic for the terminals such as mobile phone.
It not can guarantee the distance between antenna and will lead between two antennas and the phenomenon that close coupling occur, for above-mentioned feelings
Condition, can be arranged on two antennas in and line, stitch the decoupling assemblies such as minor matters, thus the premise coupled between avoiding antenna
The distance between lower reduction antenna.However, the addition of decoupling assembly is likely to increase the complexity and overall dimensions of antenna.
Fig. 1-1 is a kind of structural schematic diagram for aerial array that an illustrative examples of the invention provide, such as Fig. 1-1 institute
Show, which may include：First antenna, the second antenna and earth plate D.
Wherein, as Figure 1-1, first antenna includes the first metal edge frame 101 in terminal, first metal edge frame
101 is coplanar with earth plate D, which connect with earth plate D and the first feeding point P1 respectively, first metal
There are gap J between frame 101 and earth plate D.
In addition, the second antenna includes the second metal edge frame 201 in terminal, second metal edge frame 201 and earth plate D are not
It is coplanar, and, second metal edge frame 201 is parallel with earth plate D, which presents with earth plate D and second respectively
Electric point P2 connection.
In practical applications, above-mentioned earth plate D can be the metal back cover of terminal or circuit board etc., the embodiment of the present invention pair
This is not specifically limited.In addition, in practical applications, above-mentioned gap J can be made of megohmite insulants such as dielectric material, air,
It is used to guarantee that the part not connecting with earth plate D in the first metal edge frame 101 to be insulated with earth plate D, at of the invention one
In embodiment, gap J can be the medium substrate of terminal.As Figure 1-1, due to the second metal edge frame 201 and earth plate D
Non-coplanar and parallel, therefore, there are gap X between the second metal edge frame 201 and earth plate D, and gap X equally can be by medium
The megohmite insulants such as material, air are constituted, and are used to guarantee the part not connecting with earth plate D in the second metal edge frame 201 and are connect
Floor D insulation.In one embodiment of the invention, the second antenna may include dielectric-slab, which is located at the second metal
It between frame 201 and earth plate D, that is to say, above-mentioned gap X can be made of dielectric-slab.
In practical applications, the first metal edge frame 101 is the radiator of first antenna, when the first feeding point P1 feed,
A loop aerial can be formed between first metal edge frame 101 and earth plate D, which can be with radiated electromagnetic wave.By
Coplanar with earth plate D in the first metal edge frame 101, therefore, the polarization direction of first antenna is parallel with earth plate D, wherein antenna
Polarization direction refer to aerial radiation electromagnetic wave electric field strength direction.
Similarly, the second metal edge frame 201 is the radiator of the second antenna, in the second feeding point P2 feed, the second gold medal
Another loop aerial can be formed between frame 201 and earth plate D by belonging to, which can be with radiated electromagnetic wave, due to the
Two metal edge frames 201 and earth plate D are non-coplanar, and, the second metal edge frame 201 is parallel with earth plate D, therefore, the second antenna
Polarization direction is vertical with earth plate D.
As can be known from the above analysis, first antenna and the polarization direction of the second antenna are orthogonal, since polarization direction is orthogonal, because
This, the influence that the electromagnetic wave of first antenna and the second aerial radiation is mutual is smaller, that is to say first antenna and the second antenna
Between coupling it is smaller.Therefore, first antenna provided in an embodiment of the present invention and the second antenna can be not provided with decoupling assembly
And the two distance no more than 1/2 times of electromagnetic wavelength of radiation under the premise of reduce coupling between antenna, in this way, on the one hand
The complexity of antenna is reduced, the size of antenna is on the other hand also reduced.Further, since the first metal edge frame 101 and ground connection
Plate D is coplanar, therefore its manufacture difficulty is lower, simultaneously as the second metal edge frame 201 is not coplanar with earth plate D, therefore, second
Antenna does not have the demand of headroom to earth plate D, so as to reduce the overall dimensions of the second antenna, meet narrow frame, Rimless,
The Terminal Design demand of height screen accounting.
In conclusion aerial array provided in an embodiment of the present invention, by the first gold medal that will be used as first antenna radiator
Belong to frame and be set as coplanar with earth plate, sets earth plate not altogether for the second metal edge frame as the second antenna radiator
Face, and it is parallel with earth plate, so that first antenna and the polarization direction of the second antenna are orthogonal, so that first antenna and second
The influence that the electromagnetic wave of aerial radiation is mutual is smaller, that is to say so that coupling between first antenna and the second antenna compared with
Small, therefore, first antenna provided in an embodiment of the present invention and the second antenna can reduce under the premise of being not provided with decoupling assembly
Coupling between antenna, this aspect reduce the complexity of first antenna and the second Antenna Design, on the other hand also reduce
The size of first antenna and the second antenna.
Please continue to refer to Fig. 1-1, the first metal edge frame 101 is by sequentially connected first left border 1011, first
The U-frame of frame 1012 and the first Right Border 1013 composition, wherein the first left border 1011 is located at the left side of terminal, the
One Right Border 1013 is located at the right side of terminal, and frame 1012 is located at the top or bottom of terminal in first.First metal edge frame
101 both ends L1, L2 is connect with earth plate D respectively, the first feed connection on the first feeding point P1 and the first metal edge frame 101
The side of frame 1012 in separate first on the first left border 1011 is arranged in point K1 connection, first feed connection point K1,
And the distance of both ends L1, L2 away from the first metal edge frame 1011 are unequal.
As Figure 1-1, the second metal edge frame 201 is by frame in the second left border 2011, second successively arranged
2012 and second U-frame that forms of Right Border 2013, the second left border 2011 is located at the left side of terminal, the second Right Border
2013 are located at the right side of terminal, and frame 2012 is located at the top or bottom of terminal in second.The both ends Q1 of second metal edge frame 201
It is connect respectively with earth plate D with Q2, setting that is to say the of 2012 middle part of frame in second at the middle part of the second metal edge frame 201
Two feed connection point K2 are connect with the second feeding point P2.
In an embodiment of the present invention, first antenna can be used as the primary antenna of antenna in terminal array, and the second antenna can
Using the slave antenna as antenna in terminal array, wherein the center frequency point for the frequency range that first antenna is used to work in aerial array
The basic model resonance of one one times of wavelength of place's generation, and two edges of the frequency range that the second antenna is used to work in aerial array
Basic model resonance is generated at frequency point, in this way, first antenna and the second antenna can realize the frequency range to aerial array work
Complete covering.
For example, when aerial array works in long term evolution (English：Long Term Evolution；Referred to as：LTE) 700 frequency
When in section, the frequency range of work is 698 megahertzs of (English：MHz between)~806MHz, first antenna can be in 740MHz at this time
Place generates basic model resonance, and the second antenna can generate basic model resonance at 720MHz and at 760MHz.Work as antenna array
Column work in global system for mobile communications (English：Global System for Mobile Communication；Referred to as：
When GSM) in 850/900 frequency range, the frequency range of work is between 890MHz~960MHz, at this point, first antenna can be
Basic model resonance is generated at 900MHz, the second antenna can generate basic model resonance at 850MHz and at 950MHz.
In practical applications, in order to produce the second antenna at two edge frequency points of the frequency range that aerial array works
Raw basic model resonance, the second feed point tie point K2 can be set in the middle part of the second metal edge frame 201.In this way, the second feed
Second metal edge frame 201 can be divided into two radiant sections (that is to say two loop aerials) by tie point K2：Between K2 and Q2
Radiant section between radiant section and K2 and Q1, in the second feeding point P2 feed, which can be respectively in difference
Frequency point at generate basic model resonance, in practical applications, due to radiant section size with generation resonance frequency point be inversely proportional,
Therefore, two sides of the frequency range that suitable length can guarantee that the second antenna works in aerial array are set for two radiant sections
Basic model resonance is generated at edge frequency point.
Similarly, the first metal edge frame 101 can also be divided into two radiant sections by the first feed connection point K1：K1 and L2 it
Between radiant section and K1 and L1 between radiant section, since first antenna is only needed in the frequency range that aerial array works
Basic model resonance is generated at heart frequency point, therefore, the first metal edge frame 101 can be divided into ruler by the first feed connection point K1
Very little biggish two radiant sections of gap, in practical applications, by the larger-size radiant section (spoke in Fig. 1-1 between K1 and L2
Penetrate section) basic model resonance is generated at the center frequency point of the frequency range of above-mentioned aerial array work, it is similarly, larger for the size
Radiant section suitable length is set can guarantee that first antenna generates base at the center frequency point for the frequency range that aerial array works
This mode resonances.
As described above, the frequency point that the size of radiant section generates resonance with radiant section is inversely proportional, it that is to say, generate the frequency of resonance
Point is smaller, and the size of radiant section just needs bigger.Therefore, when aerial array is in lower band operation, the two of the second antenna
The size of a radiant section is required to larger, this results in the size of the second metal edge frame 201 larger, theoretically, second gold medal
The size for belonging to frame 201 needs to be twice or so of 101 size of the first metal edge frame, this is more quick to antenna size in terminal etc.
It is unrealistic in the equipment of sense.In order to reduce the second antenna two radiant sections size, the embodiment of the present invention can be second
Capacitor and inductance are set in antenna.
Fig. 1-2 is please referred to, Fig. 1-2 is the schematic diagram that the second feed connection point K2 is connect with the second feeding point P2, such as Fig. 1-2
Shown, the second feed connection point K2 can be connect by lumped inductance 202 with the second feeding point P2.In addition, the embodiment of the present invention
It can also be between the second feed connection point K2 and one end Q2 of the second metal edge frame 201 and the second feed connection point K2 and
First capacitor partition G1 is respectively set between the other end Q1 of two metal edge frames 201 and the second capacitor separates G2, Fig. 1-3 is shown
The enlarged plan view of 2012 adjacent part of frame in second left border 2011 and second, as shown in Figure 1-3, the second left border
2011 are not connected with frame 2012 in second, and there are gaps between frame 2012 in the second left border 2011 and second, should
Gap is that above-mentioned first capacitor partition G1, Fig. 1-4 show 2012 adjacent portions of frame in the second Right Border 2013 and second
The enlarged plan view divided, as shown in Figs 1-4, the second Right Border 2013 is not connected with frame 2012 in second, the second right side
There are gap between frame 2012 in frame 2013 and second, which is above-mentioned second capacitor partition G2.
First capacitor partition G1 is set on the second metal edge frame 201 and the second capacitor partition G2 is equivalent in the second antenna
Two radiant sections on capacitor is set, between the second feed connection point K2 and the second feeding point P2 be arranged 202 phase of lumped inductance
When in inductance is arranged on two radiant sections in the second antenna.Setting capacitor and inductance can reduce by two radiant sections and generate base
The frequency point of this mode resonances, thus size needed for reducing two radiant sections.
In addition, that is to say makes first antenna and the second antenna in order to enable aerial array in different band operations
Basic model resonance is generated at different frequency points, the embodiment of the present invention can use Reconfiguration Technologies and change first antenna and the
The size of the radiant section of two antennas.
Fig. 1-5 is please referred to, Fig. 1-5 is the enlarged diagram of one end L2 of the first metal edge frame 101, as shown in Figs. 1-5, the
One end L2 of one metal edge frame 101 can be connect by the first earthing switch H1 with earth plate D, and the first metal edge frame 101
One end L2 has been disposed adjacent the first reconstruct switching group F1, and first reconstruct switching group F1 includes at least one first reconstruct switch f1
(Fig. 1-5 illustrates only the first reconstruct switching group F1 and includes the case where two first reconstruct switch f1), each first reconstruct switch
F1 is connect with the first metal edge frame 101 and earth plate D respectively.In practical applications, the other end L1 of the first metal edge frame 101
The reconstruct switching group F1 of the first earthing switch H1 and first can similarly be provided with one end L2 of the first metal edge frame 101, this
Inventive embodiments just repeat no more this.
It can change the by open and close of the first earthing switch H1 of control and each the first reconstruct switch f1
The position that one metal edge frame 101 is connect with earth plate D, to change the size of first antenna radiant section.
Fig. 1-6 is please referred to, Fig. 1-6 is the enlarged diagram of one end Q1 of the second metal edge frame 201, as shown in figures 1 to 6, the
One end Q1 of two metal edge frames 201 is connect by the second earthing switch H2 with earth plate D, and one end of the second metal edge frame 201
It includes at least one second reconstruct switch f2 (Fig. 1-6 that Q1, which has been disposed adjacent the second reconstruct switching group F2, the second reconstruct switching group F2,
Illustrate only the second reconstruct switching group F2 and include the case where two second reconstruct switch f2), each second reconstruct switch f2 difference
It is connect with the second metal edge frame 201 and earth plate D.In practical applications, the other end Q2 of the second metal edge frame 201 can also be with
One end Q1 of second metal edge frame 201 similarly is provided with the reconstruct switching group F2 of the second earthing switch H2 and second, and the present invention is real
It applies example and this is just repeated no more.
It similarly, can be with by the open and close of the second earthing switch H2 of control and each the second reconstruct switch f2
Change the position that the second metal edge frame 201 is connect with earth plate D, to change the size of the second aerial radiation section.
It should be noted that in practical applications, above-mentioned first earthing switch H1, each first reconstruct switch f1, the
The open and close of two earthing switch H2 and each the second reconstruct switch f2 can be controlled by the processor in terminal,
Details are not described herein for the embodiment of the present invention.
In the following, the embodiment of the present invention is only worked in LTE700 frequency range and GSM850/900 frequency range with aerial array to first
The size of antenna and the second antenna is illustrated, it should be noted that the explanation of following pairs of antenna array sizes is only example
Property, the application can not be limited.
When aerial array works in LTE700 frequency range, the length d1 of the first Right Border 1013 is 70 millimeters, first
The length d2 of middle frame 1012 is 70 millimeters, and distance d3 of the first feed connection point K1 away from frame 1012 in first is 61 millimeters,
Distance d4 of the first feed connection point K1 away from 101 one end L1 of the first metal edge frame is 61 millimeters.Frame 1012 and ground connection in first
Gap width r1 between plate D is 12 millimeters, and the gap width r2 between the first Right Border 1013 and earth plate D is 2 millimeters,
Gap width r3 between first left border 1011 and earth plate D is 2 millimeters.The length s1 of second left border 2011 is 77
Millimeter, the length s2 of the second Right Border 2013 be 72 millimeters, the second feed connection point K2 away from the second left border 2011 away from
It is 31 millimeters from s3, distance s4 of the second feed connection point K2 away from the second Right Border 2013 is 39 millimeters, first capacitor partition
The width of G1 and the second capacitor partition G2 are 0.2 millimeter, and the size of lumped inductance 202 is 4.7 nanohenrys, the second metal edge frame 201
Distance h away from earth plate D is 7 millimeters.
When aerial array works in GSM850/900 frequency range, the length d1 of the first Right Border 1013 is 58 millimeters,
The length d2 of frame 1012 is 70 millimeters in first, and distance d3 of the first feed connection point K1 away from frame 1012 in first is 41 millis
Rice, distance d4 of the first feed connection point K1 away from 101 one end L1 of the first metal edge frame are 21 millimeters.In first frame 1012 with connect
Gap width r1 between the D of floor is 12 millimeters, and the gap width r2 between the first Right Border 1013 and earth plate D is 2 millis
Rice, the gap width r3 between the first left border 1011 and earth plate D are 2 millimeters.The length s1 of second left border 2011
It is 57 millimeters, the length s2 of the second Right Border 2013 is 62 millimeters, and the second feed connection point K2 is away from the second left border 2011
Distance s3 be 31 millimeters, distance s4 of the second feed connection point K2 away from the second Right Border 2013 be 39 millimeters, first capacitor
The width for separating G1 and the second capacitor partition G2 is 0.2 millimeter, and the size of lumped inductance 202 is 2.1 nanohenrys, the second metal edge frame
The 201 distance h away from earth plate D are 7 millimeters.
Fig. 2, which is shown in terminal, is provided only with first antenna and when the first antenna is worked in LTE700 frequency range, this
The schematic diagram of the return loss of one antenna, x-axis represents wave frequency, unit GHz in Fig. 2, and y-axis represents port S parameter, single
Position is db.As shown in Figure 2, which can generate basic model resonance at the frequency point of 760MHz, and can preferably cover
Each frequency point that lid LTE700 frequency range includes.
Fig. 3, which is shown in terminal, is provided only with the second antenna and second Antenna Operation when in LTE700 frequency range, this
The schematic diagram of the return loss of two antennas, x-axis represents wave frequency, unit GHz in Fig. 3, and y-axis represents port S parameter, single
Position is db.From the figure 3, it may be seen that second antenna can generate basic model resonance at 720MHz and at the frequency point of 760MHz, and
Each frequency point that LTE700 frequency range includes can preferably be covered.
Fig. 4, which is shown in terminal, is provided only with first antenna and when the first antenna is worked in GSM850/900 frequency range,
The schematic diagram of the return loss of the first antenna, x-axis represents wave frequency, unit GHz in Fig. 4, and y-axis represents port S ginseng
Number, unit db.As shown in Figure 4, which can generate basic model resonance at the frequency point of 900MHz, and can be preferably
Each frequency point that covering GSM850/900 frequency range in ground includes.
Fig. 5, which is shown in terminal, is provided only with the second antenna and second Antenna Operation when in GSM850/900 frequency range,
The schematic diagram of the return loss of second antenna, x-axis represents wave frequency, unit GHz in Fig. 5, and y-axis represents port S ginseng
Number, unit db.As shown in Figure 5, which it is humorous can to generate basic model at 870MHz and at the frequency point of 950MHz
Vibration, and can preferably cover each frequency point that GSM850/900 frequency range includes.
Fig. 6, which is shown in terminal, is provided with first antenna and the second antenna and the first antenna and the second antenna work in
When in LTE700 frequency range, the schematic diagram of the return loss and isolation of the first antenna and the second antenna, x-axis represents electricity in Fig. 6
Magnetic wave frequency, unit GHz, y-axis represent port S parameter, unit db.It will be appreciated from fig. 6 that the second antenna can in 720MHz and
Basic model resonance is generated at the frequency point of 760MHz, and can preferably cover each frequency point that LTE700 frequency range includes, first day
Line can generate basic model resonance at the frequency point of 740MHz, and can preferably cover each frequency that LTE700 frequency range includes
When a first antenna or the second antenna being separately provided in the return loss plot and terminal of point, first antenna and the second antenna
The return loss plot of one antenna and the second antenna is almost the same, and, the isolation of first antenna and the second antenna is less than 15db,
Isolation is preferable.
Fig. 7, which is shown in terminal, is provided with first antenna and the second antenna and the first antenna and the second antenna work in
When in GSM850/900 frequency range, the schematic diagram of the return loss and isolation of the first antenna and the second antenna, x-axis generation in Fig. 7
Table wave frequency, unit GHz, y-axis represent port S parameter, unit db.As shown in Figure 7, the second antenna can be
Basic model resonance is generated at the frequency point of 850MHz and 950MHz, and can preferably cover that GSM850/900 frequency range includes it is each
Frequency point, first antenna can generate basic model resonance at the frequency point of 900MHz, and can preferably cover GSM850/900 frequency
A first antenna is separately provided in the return loss plot and terminal of each frequency point that section includes, first antenna and the second antenna
Or first antenna and the return loss plot of the second antenna are almost the same when the second antenna, and, first antenna and the second antenna
Isolation is less than 15db, and isolation is preferable.
Fig. 8 show the envelope correlation system of aerial array provided in an embodiment of the present invention when working in LTE700 frequency range
Number (English：envelope correlation coefficient；Referred to as：ECC schematic diagram), x-axis represents electromagnetic wave in Fig. 8
Frequency, unit GHz, y-axis represent ECC value.As shown in figure 8, the ECC value of aerial array is smaller, therefore in aerial array
The envelope correlation of one antenna and the second antenna is lower.
Fig. 9 show showing for the ECC of aerial array provided in an embodiment of the present invention when working in GSM850/900 frequency range
It is intended to, x-axis represents wave frequency, unit GHz in Fig. 9, and y-axis represents ECC value, as shown in figure 9, the ECC value of aerial array
It is smaller, therefore the envelope correlation of the first antenna and the second antenna in aerial array is lower.
Figure 10 show the schematic diagram for working in the gross efficiency of first antenna when in GSM850/900 frequency range, x-axis in Figure 10
Wave frequency, unit GHz are represented, y-axis represents the value of gross efficiency, and as shown in Figure 10, the gross efficiency of first antenna can reach
To 50% or more, efficiency is higher.
Figure 11 show the schematic diagram of the gross efficiency of the second antenna when working in GSM850/900 frequency range, x-axis in Figure 11
Wave frequency, unit GHz are represented, y-axis represents the value of gross efficiency, and as shown in figure 11, the gross efficiency of the second antenna can reach
To 35% or more.
Figure 12 show the schematic diagram for working in the gross efficiency of first antenna when in LTE700 frequency range, and x-axis represents in Figure 12
Wave frequency, unit GHz, y-axis represent the value of gross efficiency, and as shown in figure 12, the gross efficiency of first antenna can reach
50% or more, efficiency is higher.
Figure 13 show the schematic diagram of the gross efficiency of the second antenna when working in LTE700 frequency range, and x-axis represents in Figure 13
Wave frequency, unit GHz, y-axis represent the value of gross efficiency, and as shown in figure 13, the gross efficiency of the second antenna can reach
35% or more.
In conclusion aerial array provided in an embodiment of the present invention, by the first gold medal that will be used as first antenna radiator
Belong to frame and be set as coplanar with earth plate, sets earth plate not altogether for the second metal edge frame as the second antenna radiator
Face, and it is parallel with earth plate, so that first antenna and the polarization direction of the second antenna are orthogonal, so that first antenna and second
The influence that the electromagnetic wave of aerial radiation is mutual is smaller, that is to say so that coupling between first antenna and the second antenna compared with
Small, therefore, first antenna provided in an embodiment of the present invention and the second antenna can reduce under the premise of being not provided with decoupling assembly
Coupling between antenna, this aspect reduce the complexity of first antenna and the second Antenna Design, on the other hand also reduce
The size of first antenna and the second antenna.
The embodiment of the invention also provides a kind of terminal, it is provided with aerial array as Figure 1-1 in the terminal, the end
End can use the aerial array transmitting-receiving communication information.
It should be noted that terminal provided in an embodiment of the present invention can be the electronic equipment that can receive and dispatch the communication information,
Such as mobile phone, tablet computer etc..Terminal provided in an embodiment of the present invention may include processing component, memory, and power supply module is more
Media component, audio component, the interface of input/output, sensor module and communication component etc..
Wherein, processing component is used to control the integrated operation of the terminal, such as with display, telephone call, data communication, phase
Machine operation and record operate associated operation.In one embodiment of the invention, the processing component may include one or
Multiple processors.
Memory is configured as storing operation of various types of data to support terminal.The example of these data includes using
In the instruction of any application or method operated at the terminal, contact data, telephone book data, message, picture, video
Deng.The memory can be realized by any kind of volatibility or non-volatile memory device or their combination, such as static
Random access memory, electrically erasable programmable read-only memory, Erasable Programmable Read Only Memory EPROM may be programmed read-only storage
Device, read-only memory, magnetic memory, flash memory, disk or CD etc..
Power supply module can provide electric power for the various assemblies of terminal.
Multimedia component includes the screen of one output interface of offer between terminal and user.Of the invention some
In embodiment, above-mentioned screen may include liquid crystal display and touch panel.In some embodiments of the invention, multimedia group
Part can also include a front camera and/or rear camera.
Audio component is configured as output and/or input audio signal.For example, audio component may include a Mike
Wind, in some embodiments of the invention, audio component can also include a loudspeaker.
The interface of input/output provides interface, above-mentioned peripheral interface module between processing component and peripheral interface module
It can be keyboard, click wheel, button etc..
Sensor module includes one or more sensors, for providing the status assessment of various aspects for terminal.At this
In one embodiment of invention, sensor module may include proximity sensor, optical sensor, acceleration transducer, gyroscope
Sensor, Magnetic Sensor, pressure sensor or temperature sensor etc..
Communication component is configured to facilitate the communication of wired or wireless way between terminal and other equipment.Of the invention
In one exemplary embodiment, communication component may include near-field communication module etc..
The foregoing is merely the exemplary embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this application.
Claims (10)
1. a kind of aerial array, which is characterized in that the aerial array includes first antenna, the second antenna and earth plate；
The first antenna includes the first metal edge frame in terminal, and first metal edge frame is coplanar with the earth plate, institute
The first metal edge frame is stated to connect with the earth plate and the first feeding point respectively, first metal edge frame and the earth plate it
Between there are gaps；
Second antenna includes the second metal edge frame in the terminal, and second metal edge frame and the earth plate be not total
Face, and, second metal edge frame is parallel with the earth plate, second metal edge frame respectively with the earth plate and second
Feeding point connection.
2. aerial array according to claim 1, which is characterized in that the both ends of first metal edge frame respectively with it is described
Earth plate connection；
First feeding point is connect with the first feed connection point on first metal edge frame, first feed connection point
With it is unequal at a distance from the both ends of first metal edge frame, to form a loop aerial.
3. aerial array according to claim 2, which is characterized in that the first antenna includes two the first earthing switches
With two first reconstruct switching groups, the both ends of first metal edge frame pass through respectively first earthing switch with it is described
Earth plate connection；
The first reconstruct switching group is disposed adjacent with the both ends of first metal edge frame respectively, the first reconstruct switching group
Including at least one the first reconstruct switch；
Each first reconstruct switch is connect with first metal edge frame and the earth plate respectively.
4. aerial array according to claim 2, which is characterized in that first metal edge frame is by sequentially connected the
One left border, in first frame and the first Right Border composition U-frame, first left border is located at the terminal
Left side, first Right Border are located at the right side of the terminal, and frame is located at the top or bottom of the terminal in described first
Portion；
The side of frame in separate described first on first left border is arranged in first feed connection point.
5. aerial array according to claim 1, which is characterized in that the both ends of second metal edge frame respectively with it is described
Earth plate connection；
The second feed connection point in the middle part of second metal edge frame is arranged in connect with second feeding point, to form one
Loop aerial.
6. aerial array according to claim 5, which is characterized in that second feed connection point by lumped inductance with
The second feeding point connection；
Second metal edge frame includes first capacitor partition and the partition of the second capacitor；
First capacitor partition is between second feed connection point and one end of second metal edge frame, and described the
Two capacitors separate between second feed connection point and the other end of second metal edge frame.
7. aerial array according to claim 5, which is characterized in that second antenna includes two the second earthing switches
With two second reconstruct switching groups, the both ends of second metal edge frame pass through respectively second earthing switch with it is described
Earth plate connection；
The second reconstruct switching group is disposed adjacent with the both ends of second metal edge frame respectively, the second reconstruct switching group
Including at least one the second reconstruct switch；
Each second reconstruct switch is connect with second metal edge frame and the earth plate respectively.
8. aerial array according to claim 6, which is characterized in that second metal edge frame be by successively arrange the
Two left borders, in second frame and the second Right Border composition U-frame, second left border is located at the terminal
Left side, second Right Border are located at the right side of the terminal, and frame is located at the top or bottom of the terminal in described second
Portion；
Second feed connection point is located at the middle part of frame in described second.
9. aerial array according to claim 8, which is characterized in that frame in second left border and described second
Between there are first capacitor partitions；There are second capacitors between frame in second Right Border and described second
Partition.
10. a kind of terminal, which is characterized in that the terminal includes the aerial array as described in claim 1-9 is any.
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