CN104253315B - Multiaerial system and mobile terminal - Google Patents
Multiaerial system and mobile terminal Download PDFInfo
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- CN104253315B CN104253315B CN201310270563.8A CN201310270563A CN104253315B CN 104253315 B CN104253315 B CN 104253315B CN 201310270563 A CN201310270563 A CN 201310270563A CN 104253315 B CN104253315 B CN 104253315B
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Abstract
The invention provides a multiaerial system and a mobile terminal. The multiaerial system comprises two first PIFAs (planar inverted-F antennae). Each first PIFA comprises a first metal patch, a first metal floor, a first feeder and a metal shorting patch. Inverted L-shaped gaps are formed in the first metal patches. The first metal patches are parallel to the first metal floors and connected with the first metal shorting patches through the first feeders. The first PIFAs are symmetric about YOZ face. Distance between the first metal floors on the first PIFAs is larger than 0 and smaller than that between the first metal patches on the first PIFAs.
Description
Technical field
The present invention relates to antenna technology, more particularly to a kind of multiaerial system and mobile terminal.
Background technology
Antenna is the important component part of wireless communication system, in mobile communication terminal, is generally sent out using individual antenna
Penetrate and receive signal.But, as mobile communication system is constantly upgraded in function, capacity, quality and service business, Yi Jiwu
The complexity of line signal communication environments is improved, and channel is affected by environmental factorss such as landform, temperature, humidity so that electric wave exists
Airborne spread decline is serious, have impact on mobile communication quality, therefore, only with individual antenna it is difficult in complicated communication environments
Preferable communication performance is kept, needs to be realized more with multiple-input, multiple-output (Multi-Input Multi-Output, MIMO) technology
High transfer rate, higher channel capacity, relatively low transmission power and severe transmission environment etc. is overcome to require.Wherein,
MIMO technology needs to be realized by multiaerial system.
But there is mutual interference and electromagnetic crosstalk between multiple antennas so that electromagnetic environment (Electro Magnetic
Compatibility, referred to as EMC) it is deteriorated, cause antenna efficiency to reduce, so as to affect the communication quality of mobile terminal.And
And, the miniaturization and ultrathin due to mobile terminal so that the space that mobile terminal gives antenna is fewer and feweri.How limited
Space in integrated multiple antennas, and prevent mutual interference and electromagnetic crosstalk under multiple antennas working condition between each antenna from causing antenna
The reduction of efficiency, becomes a difficult problem for antenna arrangement urgent need to resolve in the multiaerial system of mobile terminal.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of multiaerial system and mobile terminal, to increase dual-band mobile end
Higher isolation is realized while antenna amount in end.
In a first aspect, the embodiment of the present invention provides a kind of multiaerial system, including：Two the first plane inverse-Fs PIFA days
Line, described the first PIFA antenna includes the first metal patch, the first metal floor, the first feeder line and the first short circuit metal branch
Section；
Inverted L-shaped gap is offered on first metal patch；
First metal patch is parallel with first metal floor, and short by first feeder line and the first metal
Road minor matters are connected；
The first PIFA antenna described in two is symmetrical with regard to YOZ faces, the first gold medal on the first PIFA antenna described in two
The distance between possession plate is more than 0, and less than the distance between first metal patch on the first PIFA antenna described in two.
With reference in a first aspect, in the first possible implementation of first aspect, also including：First middle device,
First middle device includes：
Second metal floor, between the first metal floor on the first PIFA antenna described in two, and with it is described
First metal floor is vertical；
Dielectric-slab, between the first metal floor on the first PIFA antenna described in two, and positioned at described second
The top of metal floor, it is parallel with second metal floor；
Second PIFA antenna, including the second metal patch, the second short circuit metal minor matters and coaxial feeder, second gold medal
Category paster is provided with U-lag, and second metal patch is located at away from the one side of second metal floor on the dielectric-slab,
It is connected with second metal floor by the second short circuit metal minor matters and coaxial feeder.
With reference to the first possible implementation of first aspect, in second possible implementation of first aspect
In, second PIFA antennas have two, and between two second PIFA antennas isolation minor matters are provided with.
With reference to second possible implementation of first aspect, in the third possible implementation of first aspect
In, it is described isolation minor matters be arranged on second metal floor, it is described isolation minor matters be hollow slot structure, including major branch section and
Multiple branch sections, the plurality of branch section is connected with the major branch section.
With reference to the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect
In, the major branch section is a shape groove, and the branch section is η shape grooves, positioned at the top of the major branch section, and bottom and the master
Minor matters are connected.
With reference to any one possible implementation in first to fourth kind of possible implementation of first aspect, first
In 5th kind of possible implementation of aspect, also include：Second middle device, in second middle device and described first
Between apparatus structure it is identical and symmetrical with regard to YOZ faces.
With reference to any one possible implementation in first to fourth kind of possible implementation of first aspect, first
In 6th kind of possible implementation of aspect, the dielectric constant of the dielectric-slab is 1～10.
Second aspect, the embodiment of the present invention provides a kind of mobile terminal, including terminal body and above-mentioned first aspect
Any one multiaerial system, the terminal body is connected with the multiaerial system, the multiaerial system be used for be
The terminal body receiving and transmitting signal.
Multiaerial system and mobile terminal that above-described embodiment is provided, by arranging L-shaped gap in radiation patch
PIFA antennas realize two-band, and two PIFA antennas are disposed opposite to each other, and improve the isolation between antenna, and antenna is adopted
Use PIFA antennas so that multiaerial system and mobile terminal can as much as possible increase antenna amount in limited space.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, can be obtaining it according to these accompanying drawings
His accompanying drawing.
The structural representation of the multiaerial system that Fig. 1 a are provided for one embodiment of the invention；
Fig. 1 b are the upward view of Fig. 1 a；
Fig. 1 c are the right view of Fig. 1 a；
The structural representation of the multiaerial system that Fig. 2 a are provided for another embodiment of the present invention；
Fig. 2 b are the upward view of Fig. 2 a；
Fig. 2 c are the right view of Fig. 2 a；
The structural representation of the multiaerial system that Fig. 3 a are provided for another embodiment of the present invention；
Fig. 3 b are the upward view of Fig. 3 a；
Fig. 3 c are the right view of Fig. 3 a；
The structural representation of the multiaerial system that Fig. 4 a are provided for another embodiment of the present invention；
Fig. 4 b are the upward view of Fig. 4 a；
Fig. 4 c are the right view of Fig. 4 a；
Fig. 5 is reflection coefficient analogous diagram of Fig. 4 a～multiaerial system shown in Fig. 4 c in low-frequency range；
Fig. 6 is isolation analogous diagram of Fig. 4 a～multiaerial system shown in Fig. 4 c in low-frequency range；
Fig. 7 is reflection coefficient analogous diagram of Fig. 4 a～multiaerial system shown in Fig. 4 c in high band；
Fig. 8 is isolation analogous diagram of Fig. 4 a～multiaerial system shown in Fig. 4 c in high band；
Fig. 9 is directional diagram of the antenna 4 at 2.7GHz；
Figure 10 is directional diagram of the antenna 4 at 3.5GHz；
Figure 11 is directional diagram of the antenna 5 at 2.7GHz；
Figure 12 is directional diagram of the antenna 5 at 3.5GHz；
Figure 13 is directional diagram of the antenna 6 at 2.7GHz；
Figure 14 is directional diagram of the antenna 6 at 3.5GHz；
The structural representation of the mobile terminal that Figure 15 is provided for another embodiment of the present invention.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step ground is described in detail, it is clear that described embodiment is only present invention some embodiments, rather than the enforcement of whole
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
The structural representation of the multiaerial system that Fig. 1 a are provided for one embodiment of the invention, Fig. 1 b are looked up for Fig. 1 a's
Figure, Fig. 1 c are the right view of Fig. 1 a.In the present embodiment, multiaerial system includes：Antenna 6 and antenna 9.Antenna 6 and antenna 9 are
The first PIFA antenna, and structure is identical, it is symmetrical with regard to YOZ faces.
The first the PIFA antenna in the present embodiment is illustrated by taking antenna 6 as an example.
Antenna 6 includes：First metal patch 6a, the first metal floor 6d, the first feeder line 6c and the first short circuit metal minor matters
6b。
The long edge lengths of the first metal patch 6a are 29mm, and bond length is 8.35mm；
The long edge lengths of the first metal floor 6d are 50mm, and bond length is 5mm；
First metal patch 6a's is long parallel in long with the first metal floor 6d, and the first metal patch 6a's is short
While it is parallel with the minor face of the first metal floor 6d, the lower limb 6a1's of the first metal patch 6a and the first metal floor 6d
Distances of the lower limb 6d1 in Y-axis is 13mm.
The width of the first short circuit metal minor matters 6b is 1.5mm, and length is 8mm, the lower limb of the first short circuit metal minor matters 6b
Distances of the lower limb 6a1 of 6b1 and the first metal patch 6a in Y-axis is 12mm.
The width of the first feeder line 6c is 7mm, and length is 8mm, the lower limb 6c1 of the first feeder line 6c and the first metal patch 6a
Lower limb 6a1 overlap.
As illustrated in figure 1 c, inverted L-shaped gap 14 is offered on the first metal patch 6a, makes antenna 6 realize dual-frequency band operation.
Distances of the lower limb 6a1 of the metal patch 6a of lower limb 141 and first in L-shaped gap 14 in Y-axis be
4.025mm。
L-shaped gap 14 is placed on the long side edge of the first metal patch 6a, and overall width D141 in the L-shaped gap 14 is
5mm, entire length L14 is 16.2mm, and the width D 142 of seam is 1mm.
As shown in Figure 1 b, the first metal patch 6a and the first metal floor 6d are parallel, and by the first feeder line 6c and first
Short circuit metal minor matters 6b are connected.
As shown in Figure 1 a, 1 b, antenna 6 and antenna 9 are symmetrical with regard to YOZ faces, the first metal floor 6d and day on antenna 6
The distance between first metal floor on line 9 is more than 0, and less than the on the first metal patch 6a and antenna 9 on antenna 6
The distance between one metal patch, that is to say, that antenna 6 and antenna 9 are disposed opposite to each other, and improve between antenna system working frequency range
Isolation.
The multiaerial system that the present embodiment is provided, is realized by the PIFA antennas for arranging L-shaped gap in radiation patch
Two-band, and two PIFA antennas are disposed opposite to each other, and improve the isolation between antenna, and antenna adopts PIFA antennas, makes
Obtaining multiaerial system and mobile terminal can as much as possible increase antenna amount in limited space.
The structural representation of the multiaerial system that Fig. 2 a are provided for another embodiment of the present invention, Fig. 2 b are looked up for Fig. 2 a's
Figure, Fig. 2 c are the right view of Fig. 2 a.
The present embodiment increased the first middle device on the basis of Fig. 1 a～multiaerial system shown in Fig. 1 c.
As shown in Figure 2 a, multiaerial system also includes the first middle device 20.
First middle device 20 includes：Second metal floor 21, dielectric-slab 22 and antenna 23.
As shown in Figure 2 a and 2 b, the second metal floor 21 is located at the first metal floor 6d of antenna 6 and the first of antenna 9
It is between metal floor and vertical with the first metal floor 6d.
Dielectric-slab 22 is located between the first metal floor 6d of antenna 6 and the first metal floor of antenna 9, and positioned at second
The top of metal floor 21, it is parallel with the second metal floor 21.That is antenna 23 is vertical with antenna 6 and antenna 9, reduces
Coupling between antenna 23 and antenna 6 and antenna 9, improves the isolation between frequency range while increased antenna amount.
Antenna 23 is second PIFA antenna, including：Second metal patch 231, the second short circuit metal minor matters 232 and coaxial
Feeder line 233.Second metal patch 231 is provided with U-lag 234, and the second metal patch 231 is located on dielectric-slab 22 and deviates from the second gold medal
The one side of possession plate 21, is connected by the second short circuit metal minor matters 232 and coaxial feeder 233 with the second metal floor 21.
In the present embodiment, the dielectric constant of dielectric-slab is 1～10.
Multiaerial system shown in the present embodiment is reduced by the first PIFA antenna and second PIFA antennas orthogonal
The degree of coupling between the first PIFA antenna and second PIFA antenna, while isolation between antenna is ensured, increased
Antenna amount.
The structural representation of the multiaerial system that Fig. 3 a are provided for another embodiment of the present invention, Fig. 3 b are looked up for Fig. 3 a's
Figure, Fig. 3 c are the right view of Fig. 3 a.
The present embodiment is similar with Fig. 2 a～multiaerial system shown in Fig. 2 c, and difference is that the first middle device includes
Two second PIFA antennas.
The structure of the two second PIFA antennas is identical, and size can be with identical, it is also possible to different.
As shown in Figure 3 a, in the present embodiment, the first middle device includes dielectric-slab 3, the second metal floor 1, antenna 4 and day
Line 5.Antenna 4 and antenna 5 be second PIFA antenna, and antenna 4 is dimensioned slightly smaller than antenna 5.
Specifically, the dielectric constant of dielectric-slab 3 is 4.4, and long edge lengths are 70mm, and bond length is 34mm, and thickness is
0.9mm；The long edge lengths of the second metal floor 1 are 70mm, and bond length is 37.5mm-47.5mm.
In Fig. 3 a, antenna 4 includes：Second metal patch 4a, the second short-circuit minor matters 4c and coaxial feeder 4d, the second short-circuit branch
On the centrage of antenna 4, the radius of the second short-circuit minor matters 4c is 0.5mm to section 4c and coaxial feeder 4d, is highly 9.55mm, circle
The distance between left hand edge of the heart and the second metal patch 4a is 0.5mm-2mm.The radius of coaxial feeder 4d is 0.7mm, highly
Distance of the left hand edge in X-axis for 9.55mm, central point and the second metal patch 4a is 4.7mm.
In Fig. 3 a, the length of the second metal patch 4a is 11.7mm, and width is 9.8mm, the left side of the second metal patch 4a
Distance of the left hand edge of edge and metal floor 1 in X-axis is 8.3mm, the top edge of the second metal patch 4a and metal floor 1
Distance of the top edge in Y-axis is 2.1mm,
In Fig. 3 a, U-lag 12, the left hand edge of U-lag 12 and the second metal patch 4a are etched with the second metal patch 4a
Distance of the left hand edge in X-axis be 1.2mm, make antenna 4 realize dual-frequency band operation.
In Fig. 3 a, antenna 5 includes：Second metal patch 5a, the second short-circuit minor matters 5c and coaxial feeder 5d, the second short-circuit branch
On the centrage of antenna 5, the radius of the second short-circuit minor matters 5c is 0.5mm to section 5c and coaxial feeder 5d, is highly 9.55mm, circle
Distance between the left hand edge of the heart and the second metal patch 5a in X-axis is 0.5mm-2mm.The radius of coaxial feeder 5d is
0.7mm, is highly 9.55mm, and the distance of central point and the second metal patch 5a left hand edges in X-axis is 4.7mm.
In Fig. 3 a, the length of the second metal patch 5a is 11.9mm, and width is 10mm, the left hand edge of the second metal patch 5a
Distance with the left hand edge of metal floor 1 in X-axis is 8.3mm, under the lower limb and metal floor 1 of the second metal patch 5a
Distance of the edge in Y-axis is 2mm, and the distance of the left hand edge of U-lag 12 and the left hand edge of metal patch 5a in X-axis is
0.95mm。
U-lag 13 is etched with second metal patch 5a, makes antenna 5 realize dual-frequency band operation.
The length of U-lag 12 and U-lag 13 is 25mm-35mm, and width is 0.1mm-2mm.The length of U-lag 12 in this example
For 10.55+9.5+10.55mm, width is 0.3mm, and the length of U-lag 13 is 10mm+9.4mm+10mm, and width is 0.3mm.
The isolation minor matters 11 of hollow slot structure are provided with the second metal floor 1 between antenna 4 and antenna 5.
Isolation minor matters 11 include major branch section 111 and three branch sections 112, three branch sections 112 with the phase of major branch section 111
Even.
In Fig. 3 a, major branch section 111 is a shape groove, and left hand edge overlaps with the left hand edge of dielectric-slab 3.Branch section 112 is η shapes
Groove, is connected positioned at the top of major branch section 111, and bottom with major branch section 111.The lower limb and the second metal of isolation minor matters 11
Distance of the lower limb on floor 1 in Y-axis is 18.5mm.The length of major branch section 111 is 30mm, and width is 2mm；Branch section 112
The length on the long side in Y-axis is 17mm, and bond length is 10mm, and the width in X-axis is 7mm, major branch section 111 and branch section
112 well width d is 2mm.
In Fig. 3 a, in antenna 6, the lower limb of the lower limb of the first metal floor 6d and the second metal floor 1 is in Y-axis
Distance is 4mm.The left hand edge lateral separation of the right hand edge of antenna 6 and the second metal floor 1 can be 5mm-15mm.
Multiaerial system shown in the present embodiment increased between second PIFA antenna amount, and second PIFA antenna
By arranging isolation minor matters, while the degree of coupling between antenna is ensured, antenna amount is further increased.
The structural representation of the multiaerial system that Fig. 4 a are provided for another embodiment of the present invention, Fig. 4 b are looked up for Fig. 4 a's
Figure, Fig. 4 c are the right view of Fig. 4 a.
Multiaerial system shown in the present embodiment increased on the basis of the multiple antennas shown in Fig. 3 a- Fig. 3 c：In the middle of second
Device and foam base plate 2.Wherein, the second middle device is identical with the first middle device structure, and with the first middle device with regard to
XOZ faces are symmetrical, and the two is located between antenna 6 and antenna 9.PIFA antennas in second middle device are antenna 7 and antenna 8.
Antenna 4 is symmetrical with regard to XOZ faces with antenna 7, and antenna 5 is symmetrical with regard to XOZ faces with antenna 8, and antenna 6 is faced with antenna 9 with regard to XOZ
Claim.
In this example, the left hand edge lateral separation of the second metal floor 1 in the right hand edge of antenna 6 and the first middle device
For 6mm.Similarly, the right hand edge lateral separation of the second metal floor 1 in the left hand edge of antenna 9 and the second middle device is
6mm。
Between the second metal floor 1 in the second metal floor 1 and the second middle device in first middle device away from
From can be 10mm-30mm.In the present embodiment, in the second metal floor 1 and the second middle device in the first middle device
The distance between two metal floors 1 are 18mm.
The dielectric constant of foam base plate 2 is 1.05, and length is 105mm, and width is 70mm, and thickness is 8.65mm.
In the present embodiment, multiaerial system adopts the PIFA antennas of 6 compact conformations so that the occupancy of multiaerial system
Physical space being capable of as little as 133mm × 70mm.Also, by arranging U-lag and L-shaped gap on the metal patch of PIFA antennas,
So that PIFA antennas increased new resonant path on the basis of metal patch physical size is kept, realize PIFA antennas
Dual frequency characteristics.By the relative position and size that adjust short circuit metal minor matters and feeder line, PIFA antennas can be adjusted in double frequency work
Make the impedance under state and gain characteristic.Also by being the first PIFA antenna by the PIFA antennas of multi-form in the present embodiment
Vertical relation is set to and second PIFA antenna between, the coupling between antenna is reduce further.In the present embodiment, in first
Between device and the second middle device metal floor between distance at least 10mm, further reduce the coupling between antenna.
Multiaerial system shown in the present embodiment can be operated in 2.53-2.62GHz frequency ranges and 3.45-3.6GHz frequency ranges,
And isolation can reach below -20dB in working frequency range, the demand of the third generation mobile communication system is met.This enforcement
Multiaerial system shown in example can also be by changing radiation patch, U-lag, L-shaped groove, feed element, short-circuit unit and isolation branch
The size of section and position disclosure satisfy that different applications adjusting resonant operational frequency, impedance bandwidth and the radiation gain of antenna
Demand.
The S parameter simulation result of Fig. 4 a～multiaerial system shown in Fig. 4 c is as shown in Fig. 5～Fig. 8.
In Fig. 5, S44 is the impedance matching property of antenna 4, and S55 is the impedance matching property of antenna 5, and S66 is antenna 6
Impedance matching property, S77 is the impedance matching property of antenna 7, and S88 is the impedance matching property of antenna 8, and S99 is the resistance of antenna 9
Anti- matching properties, it can be seen that 4～antenna of antenna 9 works in 2.65GHz-2.75GHz frequency ranges, bandwidth of operation is 100MHz.
In Fig. 6, S45 is the isolation between antenna 4 and antenna 5.S46 is the isolation between antenna 4 and antenna 6, S47
For the isolation between antenna 4 and antenna 7, S48 is the isolation between antenna 4 and antenna 8, S49 be antenna 4 and antenna 9 it
Between isolation, S56 is isolation between antenna 5 and antenna 6, and S57 is the isolation between antenna 5 and antenna 7, and S58 is
Isolation between antenna 5 and antenna 8, S59 is the isolation between antenna 5 and antenna 9, and S67 is between antenna 6 and antenna 7
Isolation, S68 is isolation between antenna 6 and antenna 8, and S69 is the isolation between antenna 6 and antenna 9, and S78 is day
Isolation between line 7 and antenna 8, S79 is the isolation between antenna 7 and antenna 9, and S89 is between antenna 8 and antenna 9
Isolation.As can be seen that S45, S46, S47, S48, S49, S56, S57, S58, S59, S67, S68, S69, S78, S79 and S89
Respectively less than -20dB.
In Fig. 7, S44 is the impedance matching property of antenna 4, and S55 is the impedance matching property of antenna 5, and S66 is antenna 6
Impedance matching property, S77 is the impedance matching property of antenna 7, and S88 is the impedance matching property of antenna 8, and S99 is the resistance of antenna 9
Anti- matching properties, it can be seen that 4～antenna of antenna 9 works in 3.42GHz-3.59GHz frequency ranges, bandwidth of operation is 170MHz.
In Fig. 8, S45 is the isolation between antenna 4 and antenna 5.S46 is the isolation between antenna 4 and antenna 6, S47
For the isolation between antenna 4 and antenna 7, S48 is the isolation between antenna 4 and antenna 8, S49 be antenna 4 and antenna 9 it
Between isolation, S56 is isolation between antenna 5 and antenna 6, and S57 is the isolation between antenna 5 and antenna 7, and S58 is
Isolation between antenna 5 and antenna 8, S59 is the isolation between antenna 5 and antenna 9, and S67 is between antenna 6 and antenna 7
Isolation, S68 is isolation between antenna 6 and antenna 8, and S69 is the isolation between antenna 6 and antenna 9, and S78 is day
Isolation between line 7 and antenna 8, S79 is the isolation between antenna 7 and antenna 9, and S89 is between antenna 8 and antenna 9
Isolation.As can be seen that S45, S46, S47, S48, S49, S56, S57, S58, S59, S67, S68, S69, S78, S79 and S89
Respectively less than -20dB.
The radiation direction simulation result of Fig. 4 a～multiaerial system shown in Fig. 4 c is as shown in Fig. 9～Figure 14.
Fig. 9 is directional diagram of the antenna 4 at 2.7GHz.As can be seen that at 2.7GHz, the maximum gain of antenna 4 is
3.17dBi.The directional diagram of antenna 4 and antenna 7 is symmetrical with regard to XOZ faces.
Figure 10 is directional diagram of the antenna 4 at 3.5GHz.As can be seen that the maximum gain of antenna 4 is at 3.5GHz
4.13dBi.The directional diagram of antenna 4 and antenna 7 is symmetrical with regard to XOZ faces.
Figure 11 is directional diagram of the antenna 5 at 2.7GHz.As can be seen that at 2.7GHz, the maximum gain of antenna 5 is
The directional diagram of 2.8dBi, antenna 5 and antenna 8 is symmetrical with regard to XOZ faces.
Figure 12 is directional diagram of the antenna 5 at 3.5GHz.As can be seen that the maximum gain of antenna 5 is at 3.5GHz
The directional diagram of 3.23dBi, antenna 5 and antenna 8 is symmetrical with regard to XOZ faces.
Figure 13 is directional diagram of the antenna 6 at 2.7GHz.As can be seen that at 2.7GHz, the maximum gain of antenna 6 is
The directional diagram of 3.16dBi. antennas 6 and antenna 9 is symmetrical with regard to XOZ faces.
Figure 14 is directional diagram of the antenna 6 at 3.5GHz.As can be seen that at 3.5GHz, the maximum gain of antenna 6 is
4.3dBi.The directional diagram of antenna 6 and antenna 9 is symmetrical with regard to XOZ faces.
The structural representation of the mobile terminal that Figure 15 is provided for another embodiment of the present invention.Movement shown in the present embodiment
Terminal includes terminal body 151 and antenna system 152.Wherein, terminal body 151 includes processor and memorizer etc.
The basic function device of mobile terminal.Any one multiaerial system that antenna system 152 can be provided for above-described embodiment, is used for
For the receiving and transmitting signal of terminal body 151, terminal body 151 is processed the signal that antenna system 152 is received, and is produced
Raw signal is launched by antenna system 152.
The mobile terminal that the present embodiment is provided can not only cause volume less by adopting above-mentioned multiaerial system, and
And due to antenna as much as possible can be arranged in smaller space so that the communication performance of mobile terminal is also further obtained
To raising.
Finally it should be noted that：Various embodiments above only to illustrate technical scheme, rather than a limitation；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, either which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence disengaging various embodiments of the present invention technology of appropriate technical solution
The scope of scheme.
Claims (7)
1. a kind of multiaerial system, it is characterised in that include：Two the first plane inverse-F PIFA antennas, it is described the first
PIFA antennas include the first metal patch, the first metal floor, the first feeder line and the first short circuit metal minor matters；
Inverted L-shaped gap is offered on first metal patch；
First metal patch is parallel with first metal floor, and by first feeder line and the first short circuit metal branch
Section is connected；
The first PIFA antenna described in two is symmetrical with regard to YOZ faces, the first metal ground on the first PIFA antenna described in two
The distance between plate is more than 0, and less than the distance between first metal patch on the first PIFA antenna described in two；Two
Described the first PIFA antenna is disposed opposite to each other；
Also include：First middle device, first middle device includes：
Second metal floor, between the first metal floor on the first PIFA antenna described in two, and with described first
Metal floor is vertical；
Dielectric-slab, between the first metal floor on the first PIFA antenna described in two, and positioned at second metal
The top on floor, it is parallel with second metal floor；
Second PIFA antenna, including the second metal patch, the second short circuit metal minor matters and coaxial feeder, the second metal patch
Piece is provided with U-lag, and second metal patch is located on the dielectric-slab away from the one side of second metal floor, passes through
The second short circuit metal minor matters and coaxial feeder are connected with second metal floor.
2. system according to claim 1, it is characterised in that second PIFA antennas have two, two described second
Plant and be provided with isolation minor matters between PIFA antennas.
3. system according to claim 2, it is characterised in that the isolation minor matters are arranged on second metal floor,
The isolation minor matters are hollow slot structure, including major branch section and multiple branch sections, the plurality of branch section with the major branch section
It is connected.
4. system according to claim 3, it is characterised in that the major branch section is a shape groove, and the branch section is η shape grooves,
It is connected with the major branch section positioned at the top of the major branch section, and bottom.
5. the system according to any one of claim 1-4, it is characterised in that also include：Second middle device, in described second
Between device it is identical with the first middle device structure and symmetrical with regard to XOZ faces.
6. the system according to any one of claim 1-4, it is characterised in that the dielectric constant of the dielectric-slab is 1～10.
7. a kind of mobile terminal, it is characterised in that including many described in terminal body and any one of the claims 1-6
Antenna system, the terminal body is connected with the multiaerial system, and the multiaerial system is used for as the movement eventually
End body receiving and transmitting signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310270563.8A CN104253315B (en) | 2013-06-28 | 2013-06-28 | Multiaerial system and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310270563.8A CN104253315B (en) | 2013-06-28 | 2013-06-28 | Multiaerial system and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104253315A CN104253315A (en) | 2014-12-31 |
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| CN106935964B (en) * | 2017-03-02 | 2019-12-24 | 华为技术有限公司 | Multi-antenna device and terminal equipment |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2706884Y (en) * | 2004-03-01 | 2005-06-29 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency aerial |
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| EP2395602A1 (en) * | 2010-06-08 | 2011-12-14 | Research In Motion Limited | Low frequency dual-antenna diversity system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2706884Y (en) * | 2004-03-01 | 2005-06-29 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency aerial |
Non-Patent Citations (1)
| Title |
|---|
| "Modified PIFA and its array for MIMO terminals";Y. Gao等;《Microwave,Antennas and Propagation》;20050805;第152卷(第4期);第255-259页 * |
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