CN106033841A - Antenna device, electronic equipment and control method for antenna device - Google Patents
Antenna device, electronic equipment and control method for antenna device Download PDFInfo
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Abstract
The invention provides an antenna device, electronic equipment including the antenna device and a control method for the antenna device. The antenna device comprises a radiation part, a resonance unit, a first feed end and a second feed end; the radiation part is formed by utilizing a conductive area in a casing of the electronic equipment, and used for radiating and receiving antenna signals including a first antenna signal of a first frequency range and a second antenna signal of a second frequency range; the resonance unit is connected to the radiation part, and cooperates with the radiation part to transmit at least one of the first and second antenna signals; the first feed end is placed in a first position of the radiation part, and used to feed the antenna signals between the radiation part and a first signal transceiver; and the second feed end is placed in a second position of the radiation part, and used to feed the antenna signals between the radiation part and a second signal transceiver. According to technical schemes of the invention, an antenna capable of implementing communication in multiple frequency ranges is realized in a limited space.
Description
Technical field
The present invention relates to communication technical field, more particularly, to a kind of antenna assembly, electronic equipment and
Control method for antenna assembly.
Background technology
Along with the development of communication technology, the working frequency range of electronic equipment is also gradually increased.Currently used 2G
Require that the bandwidth of operation of antenna is at low frequency 824-960MHz and high frequency with the bimodule mobile communication terminal of 3G
1710-2170MHz or 1710-2025MHz.Additionally, TD-SCDMA, TD-LTE (4G) technology
The working band of mobile communication terminal also will relate to the frequency range in 2300MHz-2700MHz.The whole world is fixed
Position system (GPS), the communication etc. of WiFi are also required to the aerial signal of different frequency range.Therefore, communication technology
Development need increase antenna working frequency range.
In order to realize the communication of multiband, use now following antenna technology.One is to arrange multiple sky
Line, and utilize each antenna to realize different communication bands, this also increases the space hold of antenna,
And the design of multiple antenna elements adds the cost of antenna.Another kind is to use a surface antenna to pass
Send and receive the aerial signal of multiband, but its frequency range adjustment difficulty is the biggest, it is difficult to meet different frequency range
In the beamwidth of antenna.
Multiband communication need can be met in the case of limited design space accordingly, it is desired to provide a kind of
The antenna asked.
Summary of the invention
Embodiment of the disclosure and provide a kind of antenna assembly, electronic equipment and the control for antenna assembly
Method, it can meet multiband communication requirement under limited design space.
First aspect, it is provided that a kind of antenna assembly, is applied to an electronic equipment.This electronic equipment has
Shell, the first signal transceiver and secondary signal transceiver including conductive region.This antenna assembly can wrap
Include: Department of Radiation, utilize described conductive region to be formed, for radiation and reception antenna signal, this antenna
Signal includes the first antenna signal of the first frequency range and the second aerial signal of the second frequency range, this first frequency range
Frequency be different from the frequency of this second frequency range；Resonant element, is connected to described Department of Radiation, is used for and this
Department of Radiation cooperation transmits at least one in described first antenna signal and the second aerial signal；First feedback
Electricity end, be positioned in the primary importance of described Department of Radiation, for described Department of Radiation and with described first antenna
Feed antenna signal between the first signal transceiver that signal is corresponding；Second feed end, is positioned at described radiation
In the second position being different from described primary importance in portion, for described Department of Radiation and with described second day
Feed antenna signal between the secondary signal transceiver that line signal is corresponding.
In conjunction with first aspect, in a kind of implementation of first aspect, described antenna assembly may also include that
First earth terminal, is positioned at the 3rd position of described Department of Radiation, and the 3rd position is positioned at described primary importance
Between the second position, for reducing the impact between described first antenna signal and the second aerial signal.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, described
Resonant element comprises the steps that capacitor, and the first end is connected to the 4th position of described Department of Radiation；Inducer,
Its first end is connected to the second end of described capacitor, and the second end of this inducer is connected to ground.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, described
4th position can lay respectively at the different both sides of the described second position from described primary importance, described humorous
The unit that shakes can be used for the interference signal reduced in described second aerial signal that cooperates with this Department of Radiation.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, described
Second frequency range can include that frequency is less than the low-frequency range of preset frequency and the frequency height higher than described preset frequency
Frequency range, described capacitor can be variable condenser, and the capacitance of this variable condenser can change to change
Become the frequency of described low-frequency range.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, described
Inducer can be variable inductor, and the inductance value of this variable inductor can change described high frequency
The frequency of section.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, described
Inducer is variable inductor, and described variable inductor comprises the steps that multiple inductance element, each inductance unit
Part has different inductance value；Switch, for being connected to described electric capacity by one of the plurality of inductance element
Device, to change the inductance value of this variable inductor.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, described
Antenna assembly may also include that matching unit, be connected to described second feed end and secondary signal transceiver it
Between, it is used for making described Department of Radiation match with described secondary signal transceiver, by from the second feed end
The second aerial signal in aerial signal is supplied to described secondary signal transceiver, and will be from secondary signal
Second aerial signal of transceiver is supplied to the second feed end to radiate via Department of Radiation.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, described
Antenna assembly may also include that the second earth terminal, is positioned at the 5th position of described Department of Radiation, the 5th position
Between the second position of described primary importance, this second earth terminal is connected to the path on ground and is different from institute
State the first earth terminal and be connected to the path on ground.
Second aspect, it is provided that a kind of electronic equipment, including antenna assembly as above.
The third aspect, it is provided that a kind of control method for antenna assembly.This antenna assembly includes utilizing
The Department of Radiation that the external conductive casing of electronic equipment is formed, the first feed end being positioned in the primary importance of Department of Radiation,
The second feed end being positioned in the second position of Department of Radiation and the resonant element being connected with described Department of Radiation.Institute
State control method and comprise the steps that the described resonant element of control is to make the radiation of described Department of Radiation and to receive the first frequency range
First antenna signal, this first antenna signal is sent in electronic equipment via described first feed end
The first signal transceiver corresponding to first antenna signal；Control described resonant element to make described Department of Radiation
Radiation and the second aerial signal of reception the second frequency range, this second aerial signal is via described second feed end
The secondary signal transceiver corresponding to the second aerial signal being sent in electronic equipment, this second frequency range
Frequency is different from the frequency of this first frequency range.
In conjunction with the third aspect, in a kind of implementation of the third aspect, described resonant element includes variable
Capacitor, described second frequency range includes that frequency is less than the low-frequency range of preset frequency and frequency higher than described pre-
Determining the high band of frequency, the described resonant element of described control makes the radiation of described Department of Radiation and receives the second frequency
Second aerial signal of section comprises the steps that the frequency values of the low-frequency range determined in described second frequency range；Change institute
State the capacitance of variable condenser to make described Department of Radiation radiation and receiving have determined by the frequency of low-frequency range
Second aerial signal of rate value.
In conjunction with the third aspect and above-mentioned implementation thereof, in another implementation of the third aspect, described
Resonant element also includes the variable inductor being connected in series with described variable condenser, and described control is described humorous
Shake unit to make the radiation of described Department of Radiation and to receive the second aerial signal of the second frequency range and comprise the steps that and determine institute
State the frequency values of high band in the second frequency range；Change the inductance value of described variable inductor to make described spoke
Penetrate portion's radiation and receiving have determined by second aerial signal of frequency values of high band.
According to embodiment of the disclosure said antenna device, the electronic equipment including this antenna assembly and
In the technical scheme of the control method of antenna assembly, by arranging two feed ends in antenna assembly,
And utilize resonant element and Department of Radiation to transmit the aerial signal of different frequency via different feed ends, it is possible to
The antenna for performing multiband communication is realized in limited design space.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of disclosure embodiment, below will be to embodiment or existing skill
In art description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below
It is only some embodiments of the disclosure, for those of ordinary skill in the art, is not paying creation
Property work on the premise of, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the block diagram schematically illustrating the first antenna device according to disclosure embodiment.
Fig. 2 A be a diagram that the first antenna device of Fig. 1 schematic diagram arranging example on an electronic device.
Fig. 2 B is the inside diagram schematically illustrating the electronic equipment arranged in example at Fig. 2 A.
Fig. 3 is the first antenna device schematically illustrating the equivalent circuit diagram including resonant element.
Fig. 4 A is the second antenna under the different capacitances schematically illustrating resonant element in figure 3
The distribution of the return loss of signal.
Fig. 4 B is the second antenna under the different capacitances schematically illustrating resonant element in figure 3
The distribution of the efficiency envelope of signal.
Fig. 5 A be a diagram that the second aerial signal under the different induction value of resonant element in figure 3
The distribution of return loss.
Fig. 5 B be a diagram that the second aerial signal under the different induction value of resonant element in figure 3
The distribution of efficiency.
Fig. 6 is the block diagram schematically illustrating the second antenna assembly according to disclosure embodiment.
Fig. 7 is the structure chart schematically illustrating the electronic equipment according to disclosure embodiment.
Fig. 8 is the stream schematically illustrating the control method for antenna assembly according to disclosure embodiment
Cheng Tu.
Detailed description of the invention
Below in conjunction with the accompanying drawing in disclosure embodiment, the technical scheme in disclosure embodiment is carried out
Clearly and completely describe, it is clear that described embodiment be a part of embodiment of the disclosure rather than
Whole embodiments.In the case of not conflicting, the embodiment in the application and the feature in embodiment can
With mutual combination in any.
In the disclosure, it is positioned at first component/unit and second component/mono-when being described to particular elements/unit
Time between unit, can deposit between this particular elements/unit and first component/unit or second component/unit
At intervening elements/unit, it is also possible to there is not intervening elements/unit；When being described to particular elements/unit even
When connecing other components/units, this particular elements/unit can be directly connected to other components/units described and
Not there is intervening elements, can not also be directly connected to other components/units described and there is intervening elements.
Each antenna assembly according to disclosure embodiment can be applicable to electronic equipment, and described electronic equipment can
Being that any radio communication of such as intelligent communications terminal, tablet PC, notebook etc sets
Standby.This electronic equipment utilizes this antenna assembly from external reception aerial signal, and utilizes described antenna assembly
Local data, information etc. are radiate as aerial signal, thus utilizes described antenna assembly to carry out
Communication, data transmission etc..
Fig. 1 is the block diagram schematically illustrating the first antenna device 100 according to disclosure embodiment.Should
First antenna device 100 can be applicable to electronic equipment as above, and this electronic equipment includes the first signal
Transceiver TR1 and secondary signal transceiver TR2, each signal transceiver receives and processes via described
Each band antenna signal that one antenna assembly 100 receives, and each band antenna signal can be provided
To radiate via described antenna assembly.This electronic equipment can have the shell including conductive region.Allusion quotation
Type ground, the shell of this electronic equipment is full metal jacket.Alternatively, of the shell of this electronic equipment
Dividing is metal.Metal part in shell is able to carry out conduction.
As it is shown in figure 1, described first antenna device 100 comprises the steps that Department of Radiation 110, electronics is utilized to set
Standby conductive region is formed, and for radiation and reception antenna signal, this aerial signal includes the first frequency range
The first antenna signal of B1 and the second aerial signal of the second frequency range B2, the frequency of this first frequency range B1
It is different from the frequency of this second frequency range B2；Resonant element 120, is connected to described Department of Radiation, is used for and this
Department of Radiation 110 cooperation transmits at least one in described first antenna signal and the second aerial signal；The
One feed end 131, is positioned in primary importance P1 of described Department of Radiation 110, at described Department of Radiation 110
And feed antenna signal between the first signal transceiver TR1 corresponding with described first antenna signal；Second
Feed end 132, is positioned in second position P2 being different from described primary importance of described Department of Radiation 110,
For described Department of Radiation 110 and the secondary signal transceiver TR2 corresponding with described second aerial signal it
Between feed antenna signal.
If using unipole antenna or planar inverted-F antenna (PIFA) to realize multiband communication, ratio to be taken
Bigger height, correspondingly takies bigger headroom.Radiate if, with antenna assembly independent of each other
With receive the aerial signal of different frequency range, then the space shared by the Department of Radiation of different antennae device will be along with
The increase of antenna band and increase, and different antennae device to be tried one's best away from increasing different antennae signal
Between isolation.
In embodiment of the disclosure, described Department of Radiation 110 utilizes the conduction region in the shell of electronic equipment
Territory is formed, and this can save the space of the electronic equipment shared by antenna assembly.For different frequency range
Aerial signal arranges different feed ends.Resonant element 120 coordinates from Department of Radiation 110 and via different
Feed end transmits the first frequency range and the aerial signal of the second frequency range so that reduces and wants described Department of Radiation
Ask, thus the aerial signal of different frequency range can share same radiating element, thus significantly reduce
Headroom shared by first antenna device 100.The frequency of this first frequency range is different from the frequency of this second frequency range
Rate.First frequency range of first antenna signal can be the frequency range of such as WiFi signal, the second aerial signal
Second frequency range can be the frequency range of such as GSM1800 frequency range.The frequency of the second frequency range is less than the first frequency range
Frequency is only example.It should be noted that the low-frequency range of the disclosure and high band are only intended to represent involved
The frequency relativeness of two frequency ranges.In different antenna assemblies, the first frequency range and the frequency of the second frequency range
Rate value can specifically change.
The Department of Radiation 110 utilizing the conductive region in shell to be formed allows to produce in wide frequency band range
Raw aerial signal, but in desired communications band, it is likely to be of poor signal performance.It is traditional thread binding
Put and can be equivalent to LC oscillating circuit.When this antenna assembly carries out resonance in characteristic frequency, this LC vibrates
Circuit just forms LC resonant tank.The impedance of LC resonant tank has the characteristic of maximum or minima i.e.
It is referred to as resonance characteristic.With Department of Radiation 110 with the use of resonant element 120 allow to desired logical
Resonance in letter frequency range, to produce high performance aerial signal.In order to produce resonance, this resonant element 120
Typically it is made up of at least one in capacitive element and inductance element.Electric capacity in resonant element 120
The value of property element or inductance element depends primarily on the frequency range etc. of the shape of Department of Radiation 110, aerial signal.
If Department of Radiation 110 oneself can encourage the first antenna signal of efficient first frequency range, then resonant element
The impedor of 120 can be arranged to make first antenna device 100 resonance in the second frequency range.If spoke
Penetrate portion 110 oneself and can encourage the second aerial signal of efficient second frequency range, then resonant element 120
Impedor can be arranged to make first antenna device 100 resonance in the first frequency range.Or, resonance list
Impedor in unit 120 can make first antenna device 100 resonance in the first frequency range and the second frequency range.
First feed end 131 and the second feed end 132 lay respectively on the diverse location of described Department of Radiation,
Thus respectively described Department of Radiation 110 and the first signal transceiver TR1 and secondary signal transceiver TR2 it
Between feed first antenna signal and the second aerial signal.As example, each feed end is at described Department of Radiation
On described primary importance and the second position can respectively with the first frequency range of first antenna signal and second day
The frequency of the second frequency range of line signal is corresponding.When the frequency of the aerial signal corresponding with feed end is low, spoke
The relatively long wiring penetrating portion 110 will advantageously.When the frequency of the aerial signal corresponding with feed end is high
Time, the relatively short wiring of Department of Radiation 110 will advantageously.Accordingly, can be in conjunction with Department of Radiation 110
Geometry selects suitable position to arrange the first feed end 131 and the second feed end 132 neatly.
The sky that the position of the first feed end 131 and the second feed end 132 will directly affect on Department of Radiation 110
The distribution of line current.In order to reduce interfering of first antenna signal and the second aerial signal, Ke Yijin
Amount increases the distance between each feed end.Gap between the frequency of different antennae signal is the least, mutually
Disturb the biggest；Gap between the frequency of different antennae signal is the biggest, interferes the least.Additionally, can
To arrange earth terminal, to reduce the first feed end between the first feed end 131 and the second feed end 132
Shadow between the second aerial signal that the first antenna signal fed and the second feed end 132 are fed
Ring.For example, it is possible to arrange the first earth terminal on the 3rd position of described Department of Radiation 110, the 3rd
Primary importance and the of described second feed end 132 place setting in described first feed end 131 place
Between two positions, for reducing the impact between described first antenna signal and the second aerial signal.
In the technical scheme according to the said antenna device 100 that embodiment of the disclosure, by antenna
Dress centers two feed ends, and utilizes resonant element and Department of Radiation to transmit not via different feed ends
The aerial signal of same frequency, it is possible to realize the sky for performing multiband communication in limited design space
Line.
Fig. 2 A be a diagram that the first antenna device of Fig. 1 schematic diagram arranging example on an electronic device.
As shown in Figure 2 A, electronic equipment is the mobile phone with metal back cover.As shown in the left-hand component of Fig. 2 A,
Horizontal line part is utilized the other parts of the upper end of shell with shell to be separated, and by the upper end of this back cover
Be formed as the Department of Radiation 110 of first antenna device 100.As shown in Figure 2 A, can Department of Radiation 110 with
Gap (such as, horizontal line part) is set between described remainder, thus realizes electric isolution, this gap
Width for example, millimeter magnitude, it is also possible to wider.Substitute described gap, it is also possible at described Department of Radiation 110
And dielectric is set between described remainder to realize electric isolution.Additionally, in remaining of described shell
When part is not conductor, it is formed without with described Department of Radiation 110 and electrically connects.In fig. 2, set with electronics
The standby part in shell is as Department of Radiation 110, and this makes without arranging specially for first antenna device
Headroom places Department of Radiation 110, thus considerably reduces the space hold of antenna assembly.
As shown in the right-hand component of Fig. 2 A, difference resonant element the 120, first feed end on Department of Radiation
131, the second feed end 132.First feed end 131 is such as feeding the WiFi letter near 2.4GHz
Number (that is, first antenna signal), described second feed end 132 is such as used for feeding frequency range and is
The GSM1800 signal (that is, the second aerial signal) of 1710MHz to 1820MHz.First antenna is believed
Number frequency high, first feed end 131 corresponding with first antenna signal be closely located to Department of Radiation 110
The bottom of side；The frequency of the second aerial signal is low, second feed corresponding with the second aerial signal
The zone line on the top being closely located to Department of Radiation 110 of end 132.At the first feed end 131 and second
The first earth terminal 140 it is provided with between feed end 132.This earth terminal 140 can reduce described first day
Impact between line signal and the second aerial signal.Between first antenna signal and the second aerial signal
When influencing each other the least, such as at frequency and the frequency phase-difference of the second aerial signal of this first antenna signal
In the case of relatively big, this first earth terminal 140 can be not provided with.
Fig. 2 B is the inside diagram schematically illustrating the electronic equipment arranged in example at Fig. 2 A.?
In Fig. 2 B, Dark grey part is the metal shell of electronic equipment, and bright gray parts is the print in electronic equipment
Printed circuit board (PCB), this printed circuit board (PCB) can be provided with the first signal transceiver TR1, the second letter
Number transceiver TR2, array signal processing device etc..
As shown in the left hand view of Fig. 2 B, the PCB of electronic equipment is provided with resonant element
120, the first feed end the 131, second feed end 132 and the first earth terminal 140, its respectively with Department of Radiation
Resonant element the 120, first feed end the 131, second feed end 132 on 110 and the first earth terminal 140
Docking.The right part of flg of Fig. 2 B illustrates the inner side of the shell of electronic equipment, without PCB
Cover.In the right part of flg of Fig. 2 B 150 are the second earth terminals of first antenna device 100.This second connects
Ground end is such as positioned at the underface of the first earth terminal 140.Second earth terminal 150 is on Department of Radiation 110
Position is between the primary importance and second feed end 132 second position of the first feed end 131, its energy
Enough isolation first antenna signal and the second aerial signal further, with avoid different frequency range aerial signal it
Between influence each other.
Additionally, the path that this second earth terminal 150 is connected to ground can be differently configured from described first earth terminal 140
It is connected to the path on ground.Such as, the first earth terminal 140 may be coupled to the ground of described pcb board, and second
Earth terminal 150 can connect via part in addition to Department of Radiation 110 in the metal shell of electronic equipment
To ground.The different grounding paths of the first earth terminal 140 and the second earth terminal 150 are avoided further via
Influencing each other between the aerial signal of one feed end 131 and the feeding of the second feed end 132.
Resonant element 120 in first antenna device 100 is described below in conjunction with Fig. 3 to Fig. 5 B.
Fig. 3 is the first antenna device schematically illustrating the equivalent circuit diagram including resonant element 120
100.In figure 3, identical with Fig. 1 part have employed identical reference.Department of Radiation in Fig. 3
110, first feed end the 131, second feed end 132 is identical with the corresponding part of Fig. 1, it is possible to see
Description above.The first earth terminal 140 in Fig. 3 is corresponding to combining first shown in Fig. 2 A and Fig. 2 B
Earth terminal, it is possible to see description above.
Fig. 3 particularly illustrates the equivalent circuit diagram of resonant element 120.As it was previously stated, resonant element 120
Impedance operator can affect the resonance characteristic of Department of Radiation 110, so that institute of flowing in Department of Radiation 110
The aerial signal of desired frequency.As it is shown on figure 3, described resonant element 120 comprises the steps that capacitor 121,
First end is connected to the 4th position P4 of described Department of Radiation 110；Inducer 122, its first end is connected to
Second end of described capacitor, and the second end of this inducer is connected to ground.Described resonant element 120
It is connected to the 4th position of described Department of Radiation 110.4th feedback being closely located to aerial signal to be adjusted
Electricity end.
When resonant element 120 to assist the resonant frequency controlling first antenna signal, described resonant element
120 the 4th position P4 being connected to Department of Radiation 110 can be close to the first feed end 131 on Department of Radiation
Primary importance P1.When resonant element 120 to assist the resonant frequency controlling the second aerial signal, described
Resonant element 120 is connected to the 4th position P4 of Department of Radiation 110 can be close to the second feed end 132 at spoke
Penetrate second position P2 in portion.When resonant element 120 to assist to control first antenna signal and the second antenna
During the resonant frequency of both signals, described resonant element 120 is connected to the 4th position P4 of Department of Radiation 110
May be located between primary importance P1 and second position P2.
In figure 3, resonant element 120 to assist to control the resonant frequency of the second aerial signal, and accordingly
Ground is close to second feed end 132 second position P2 on Department of Radiation.Additionally, in order to avoid resonant element
120 impacts on the first antenna signal that the first feed terminal 131 is fed, the 4th position P4 also to use up
Measure primary importance P1 away from the first feed terminal 131 place.Therefore, in the diagram, described 4th position
P4 lays respectively at the different both sides of described second position P2, described resonance list from described primary importance P1
Unit 120 cooperates with this Department of Radiation and to produce the second aerial signal of the first frequency range, and reduces first antenna and believe
Impact number on described second aerial signal.This first antenna signal is dry for the second aerial signal
Disturb signal.
Second frequency range of the second aerial signal can be specific single frequency range, such as GSM1800 frequency range,
Even can also is that and include two more multibands, such as, include GSM800 frequency range and GSM1800 frequency range
Two frequency ranges, or include GSM800 frequency range and be positioned at both the GPS frequency ranges near 1.57GHz.Under
Wen Zhong, is referred to as low-frequency range LB, frequency higher than 1GHz by the second frequency range medium frequency frequency range less than 1GHz
Frequency range be referred to as high band HB.
Can be by changing in the capacitance of capacitor 121 in Fig. 3 or the inductance value of inducer 122 extremely
The frequency values of few each frequency range adjusting the second frequency range.Such as, described capacitor 121 can be
Variable condenser.The different capacitances of this variable condenser can correspond to the different frequency of described low-frequency range.
Described variable condenser can be continuously adjustabe, can also be discrete adjustable.Discrete adjustable in the case of,
Variable condenser such as provides multiple fixing discrete capacitance values.Described inducer 122 can be can power transformation
Sensor, the different induction value of this variable inductor can correspond to the different frequency of described high band.Described
Variable inductor can be continuously adjustabe, can also be discrete adjustable.As example, this described can power transformation
Sensor comprises the steps that multiple inductance element, each inductance element have different inductance value；Switch, is used for
One of the plurality of inductance element is connected to described capacitor, to change the inductance value of this variable inductor.
Now, variable inductor provides multiple fixing discrete electrical inductance value.Variable condenser can use various skill
Art changes its capacitance, and variable inductor can use various technology to change its inductance value, capacitance
Or specifically shifting gears of inductance value does not constitutes the restriction to disclosure embodiment.
Describe resonant element 120 below in conjunction with Fig. 4 A, Fig. 4 B, Fig. 5 A and Fig. 5 B the second antenna is believed
The adjustment of the frequency range in number.
Fig. 4 A is the second antenna under the different capacitances schematically illustrating resonant element in figure 3
The distribution of the return loss of signal.Fig. 4 B is the different electricity schematically illustrating resonant element in figure 3
The distribution of the efficiency envelope of the second aerial signal under capacitance.
The transverse axis of Fig. 4 A is frequency, and it is with MHz as unit；The longitudinal axis of Fig. 4 A is return loss, its
In units of dB.The transverse axis of Fig. 4 B is frequency, and it is with MHz as unit；The longitudinal axis of Fig. 4 B is antenna
Efficiency, it is in units of percentage ratio.Show when the inductance of resonant element 120 at Fig. 4 A and Fig. 4 B
Value is fixing, capacitance variation time performance.Fig. 4 A shows that curve C1 and curve C2, Fig. 4 B illustrate
Curve C3 and curve C4.
When the inductance value in resonant element 120 fix, capacitance is 1pF (pico farad) time, first antenna
Frequency is distributed as shown in the curve C1 in Fig. 4 A by the return loss of device 100, first antenna device
Frequency is distributed as shown in the curve C3 in Fig. 4 B by the efficiency of 100.Electricity in resonant element 120
When inductance value is fixed, capacitance is 2.4pF (pico farad), the return loss of first antenna device 100 is to frequency
Distribution as shown in the curve C2 in Fig. 4 A；The efficiency of first antenna device 100 is to the distribution of frequency such as
Shown in curve C4 in Fig. 4 B.
According to Fig. 4 A it can be seen that when the capacitance in resonant element 120 becomes 2.4pF from 1pF,
The return loss of the high band part of the second aerial signal is the most stable, particularly at resonant frequency, the
The minimum point of the return loss of the low-frequency range part of two aerial signals is changed to about from about 955MHz
710MHz, the i.e. resonant frequency of first antenna device are changed to about 710MHz from about 955MHz.
Similarly, according to Fig. 4 B it can be seen that the capacitance worked as in resonant element 120 becomes 2.4pF from 1pF
Time, the comparatively wide high band range of the second aerial signal has high efficiency, the second aerial signal
The peak of the efficiency of low-frequency range part is changed to about 710MHz from about 910MHz, i.e. first day
The resonant frequency of line apparatus is changed to about 710MHz from about 910MHz, as shown in the dotted line of Fig. 4 B
Frequency envelope.According to Fig. 4 A and Fig. 4 B it can be seen that when capacitance variation in resonant element 120
Time, the signal performance change in the high band in the second aerial signal of first antenna device 100 is less,
And the signal performance in the low-frequency range in the second aerial signal of first antenna device 100 changes greatly.Cause
This, can be by changing the work frequency that the capacitance of variable condenser changes the low-frequency range of the second aerial signal
Rate.
Fig. 5 A be a diagram that the second aerial signal under the different induction value of resonant element in figure 3
The distribution of return loss.Fig. 5 B be a diagram that second under the different induction value of resonant element in figure 3
The distribution of the efficiency of aerial signal.
The transverse axis of Fig. 5 A is frequency, and it is with MHz as unit；The longitudinal axis of Fig. 5 A is return loss, its
In units of dB.The transverse axis of Fig. 5 B is frequency, and it is with MHz as unit；The longitudinal axis of Fig. 5 B is antenna
Efficiency, it is in units of percentage ratio.Show when the electric capacity of resonant element 120 at Fig. 5 A and Fig. 5 B
Performance when value is fixing, inductance value changes.Fig. 5 A shows curve D1, D2, D3, D4, Fig. 5 B
Show curve D5, D6, D7, D8.
When the capacitance in resonant element 120 be fixing 1pF, inductance value be 0nH (nanohenry) time,
Frequency is distributed as shown in the curve D1 in Fig. 5 A by the return loss of first antenna device 100, and first
Frequency is distributed as shown in the curve D5 in Fig. 5 B by the efficiency of antenna assembly 100.When resonant element 120
In capacitance be fixing 1pF, inductance value is when being 1.1nH (nanohenry), first antenna device 100
Frequency is distributed as shown in the curve D2 in Fig. 5 A by return loss, the efficiency of first antenna device 100
Frequency is distributed as shown in the curve D6 in Fig. 5 B.When the capacitance in resonant element 120 is fixing
1pF, inductance value is when being 2.4nH (nanohenry), the return loss of first antenna device 100 is to frequency
Distribution is as shown in the curve D3 in Fig. 5 A, and the distribution of frequency is such as schemed by the efficiency of first antenna device 100
Shown in curve D7 in 5B.When the capacitance in resonant element 120 be fixing 1pF, inductance value be
During 4.5nH (nanohenry), frequency is distributed as in Fig. 5 A by the return loss of first antenna device 100
Shown in curve D4, the efficiency of first antenna device 100 frequency is distributed such as Fig. 5 B in curve D8
Shown in.
According to Fig. 5 A it can be seen that when in resonant element 120 inductance value from 0nH gradually rise into
During 4.5nH, the return loss of the low-frequency range part of the second aerial signal is the most stable, particularly at resonance
At frequency, the minimum point of the return loss of the high band part of the second aerial signal becomes from about 2.17GHz
Turn to about 1.575GHz, the i.e. resonant frequency of first antenna device be changed to about from about 2.17GHz
1.575GHz.Similarly, according to Fig. 5 B it can be seen that the inductance value worked as in resonant element 120 is from onH
When gradually rising as 4.5nH, the efficiency of the low-frequency range part of the second aerial signal is the most stable, second day
The efficiency of the high band part of line signal is being kept from about 2.6GHz to the scope of about 1.575GHz
For height, the frequency envelope as shown in the dotted line of Fig. 5 B.
According to Fig. 5 A and Fig. 5 B it can be seen that when capacitance variation in resonant element 120, first
Signal performance change in low-frequency range in second aerial signal of antenna assembly 100 is less, and first day
The signal performance in high band in second aerial signal of line apparatus 100 offsets with frequency.Therefore,
The operating frequency of the high band of the second aerial signal can be changed by the inductance value changing variable inductor.
For example, it is possible to transmit gps data and main antenna data at the second aerial signal.
According to the description carried out above in conjunction with Fig. 3 to Fig. 5 B, those skilled in the art can be suitably
Design the resonant element 120 position on Department of Radiation and its internal composition structure, make first day
Line apparatus is launched and reception has the first antenna signal of desired frequency band, has the second antenna of desired frequency band
Signal or the two.
Fig. 6 is the block diagram schematically illustrating the second antenna assembly 200 according to disclosure embodiment.?
In Fig. 6, the part identical with Fig. 1 have employed identical reference.Department of Radiation 110 in Fig. 6,
Resonant element the 120, first feed end the 131, second feed end 132 is corresponding with first antenna device 100
Part is identical, it is possible to see description above.
Second antenna assembly 200 of Fig. 6 adds with the difference of the first antenna device 100 of Fig. 1
First matching unit 151 and the second matching unit 152.First matching unit 151 is connected to described first
Between feed end 131 and the first signal transceiver TR1, it is used for making described Department of Radiation 110 and the first signal
Transceiver TR1 matches, and is supplied to by the first antenna signal in the aerial signal from the first feed end
First signal transceiver TR1, and will be supplied to from the first antenna signal of the first signal transceiver TR1
First feed end is to radiate via Department of Radiation 110.Second matching unit 152 is connected to described second
Between feed end 132 and secondary signal transceiver TR2, it is used for making described Department of Radiation 110 with described second
Signal transceiver TR2 matches, by the second antenna letter in the aerial signal from the second feed end 131
Number it is supplied to described secondary signal transceiver TR2, and by from second day of secondary signal transceiver TR2
Line signal is supplied to the second feed end 132 to radiate via Department of Radiation.
When Department of Radiation 110 mates well or the performance of first antenna signal with the first signal transceiver TR1
Meet when requiring, the first matching unit 151 in Fig. 6 can not be used.When Department of Radiation 110 and second
Good or the second aerial signal the performance of signal transceiver TR2 coupling meets when requiring, can not use
The second matching unit 152 in Fig. 6.
Feature such as such as frequency, modulating mode etc. according to first antenna signal and the second aerial signal is permissible
Different assemblies is taked to realize at least one in the first matching unit 151 and the second matching unit 152.
Such as, the first matching unit 151 can be T-shaped matching network, M type matching network and L-type coupling
Any one in network.Second matching unit 152 can also be T-shaped matching network, M type matching network,
With any one in L-type matching network.First matching unit 151 and the second matching unit 152 concrete
Structure does not constitute the restriction to disclosure embodiment.Relative to first antenna device 100, second day traditional thread binding
Put the matching unit in 200 and can improve the performance of aerial signal further.
Additionally, the standard of existing mobile communication technology mainly include global system for mobile communications (GSM),
CDMA (CDMA), 3G etc..Gsm communication includes GSM900, GSM1800, GSM1900
Etc. frequency range, wherein, the frequency range of GSM900 is 890MHz to 954MHz；The frequency of GSM1800
Rate scope is 1710MHz to 1820MHz, the frequency range of GSM1900 be 1850MHz extremely
1990MHz.Cdma communication includes the frequency ranges such as CDMA800, CDMA1900, wherein CDMA800
Frequency range be 825MHz to 885MHz, the frequency range of CDMA1900 be 1850MHz extremely
1995MHz.3G communication standard typically comprises following communications band, frequency range be 2110MHz extremely
The W-CDMA frequency range of 2170MHz, frequency range is the TDSCDMA of 2010MHz to 2025MHz
Frequency range, and frequency range is the CDMA2000 frequency range of 2110MHz to 2125MHZ.According to logical
Letter needs, it is possible to use even the antenna assembly of the disclosure realizes two more communication frequencys above.
Each antenna assembly as above can be applicable to each electronic equipment, correspondingly includes described antenna
The electronic equipment of device is also in the open scope of disclosure embodiment.Fig. 7 is to schematically illustrate root
Structure chart according to the electronic equipment 700 of disclosure embodiment.As it is shown in fig. 7, this electronic equipment 700 wraps
Including antenna assembly, the first signal transceiver TR1 and secondary signal transceiver TR2, this antenna assembly is permissible
It is to combine such as any one antenna assembly described in 1-6.Additionally, if it is required, this electronic equipment 700 is gone back
More signal transceiver can be included.
Fig. 8 is to schematically illustrate the control method 800 for antenna assembly according to disclosure embodiment
Flow chart.The antenna assembly that control method is applied to can include the external conductive casing shape utilizing electronic equipment
The Department of Radiation become, the first feed end being positioned in the primary importance of Department of Radiation, the second that is positioned at Department of Radiation
The second feed end put and the resonant element being connected with described Department of Radiation.
Described Department of Radiation utilizes the conductive region in the shell of electronic equipment to be formed, and this can save antenna
The space of the electronic equipment shared by device.The Department of Radiation utilizing the conductive region in shell to be formed enables
Enough generation aerial signals in wide frequency band range, but it is likely to be of relatively in desired communications band
The signal performance of difference.With Department of Radiation with the use of resonant element allow in desired communications band
Resonance, to produce high performance aerial signal.Under the cooperation of resonant element, Department of Radiation is radiation-curable and connects
Receive the first antenna signal of the first frequency range and the second aerial signal of the second frequency range.
Resonant element is typically made up of at least one in capacitive element and inductance element.Resonant element
In capacitive element or the value of inductance element depend primarily on the frequency of the shape of Department of Radiation, aerial signal
Section etc..
Aerial signal for different frequency range arranges different feed ends.Resonant element coordinate with Department of Radiation and
The first frequency range and the aerial signal of the second frequency range is transmitted so that reduce described via different feed ends
The requirement of Department of Radiation, thus the aerial signal of different frequency range can share same radiating element, thus pole
The earth reduces the headroom shared by antenna assembly.The frequency of this first frequency range is different from this second frequency range
Frequency.First frequency range of first antenna signal can be the frequency range of such as WiFi signal, the second aerial signal
The second frequency range can be the frequency range of such as GSM1800 frequency range.In different antenna assemblies, the first frequency
The frequency values of section and the second frequency range can specifically change.
First feed end and the second feed end lay respectively on the diverse location of described Department of Radiation, thus respectively
First is fed between described Department of Radiation and the first signal transceiver of electronic equipment and secondary signal transceiver
Aerial signal and the second aerial signal.As example, each feed end on described Department of Radiation described
One position and the second position can respectively with first frequency range and the of the second aerial signal of first antenna signal
The frequency of two frequency ranges is corresponding.When the frequency of the aerial signal corresponding with feed end is low, Department of Radiation relative
Long wiring will advantageously.When the frequency height of the aerial signal corresponding with feed end, the phase of Department of Radiation
Will advantageously to short wiring.Accordingly, can select neatly in conjunction with the geometry of Department of Radiation to close
Suitable position arranges the first feed end and the second feed end.
About each building block of antenna assembly, may refer to above in conjunction with retouching that product embodiments is carried out
State.
As shown in Figure 8, control method 800 comprises the steps that the described resonant element of control is to make described Department of Radiation
Radiation and the first antenna signal of reception the first frequency range, this first antenna signal is via described first feed end
The first signal transceiver (S810) corresponding to first antenna signal being sent in electronic equipment；Control institute
State resonant element to make described Department of Radiation radiation and receive the second frequency range the second aerial signal, this is second day
Line signal via described second feed end be sent in electronic equipment corresponding to the second of the second aerial signal
Signal transceiver, the frequency of this second frequency range is different from the frequency (S820) of this first frequency range.
In S810, control described resonant element to make described Department of Radiation via described first feed end radiation
With the first antenna signal receiving the first frequency range.Frequency in the first frequency range is less than preset frequency (such as
During low-frequency range 1GHz), can change make institute by changing the capacitance of the capacitor in resonant element
State Department of Radiation via the first feed end radiation and the first antenna signal of reception the first frequency range.In the first frequency range
Frequency when being the high band higher than described preset frequency, can be by changing the inducer in resonant element
Inductance value change and make described Department of Radiation via the first feed end radiation and receive first day of the first frequency range
Line signal.Specifically, in S810, it may be determined that the frequency values of described first frequency range；Based on this first frequency
The frequency values of section changes the reactance characteristic in resonant element, so that the radiation of described Department of Radiation and reception have the
The first antenna signal of the frequency values of one frequency range.
In S820, control described resonant element to make described Department of Radiation via described second feed end radiation
With the second aerial signal receiving the second frequency range.Second frequency range of this second aerial signal can be specific
Single frequency range, such as GSM1800 frequency range, it is also possible to even be to include two more multibands, such as, include
GSM800 frequency range and be positioned at both the GPS frequency ranges near 1.57GHz.Can be by changing in resonant element
The capacitance of capacity cell or the inductance value of inductance element at least one adjust each of the second frequency range
The frequency values of individual frequency range.
In the case of resonant element includes variable condenser, for the low-frequency range in the second frequency range,
S820 can make the radiation of described Department of Radiation and receive the second frequency range by the described resonant element of the most described control
The second aerial signal: determine the frequency values of low-frequency range in described second frequency range；Can power transformation described in changing
The capacitance of container make described Department of Radiation radiation and receiving have determined by low-frequency range frequency values the
Two aerial signals.
In the case of resonant element includes variable inductor, for the high band in the second frequency range,
S820 can make the radiation of described Department of Radiation and receive the second frequency range by the described resonant element of the most described control
The second aerial signal: determine the frequency values of high band in described second frequency range；Can power transformation described in changing
The inductance value of sensor make described Department of Radiation radiation and receiving have determined by high band frequency values the
Two aerial signals.
In the technical scheme according to the control method that embodiment of the disclosure, by arranging two feed ends,
And control resonant element and the Department of Radiation aerial signal via different feed end transmission different frequencies, it is possible to
The antenna for performing multiband communication is realized in limited design space.Additionally, resonant element enables
Enough change the different communications band of aerial signal, improve the motility of the control of antenna assembly.
Additionally, about the concrete structure of the antenna assembly controlled by described control method and antenna
The concrete structure of the resonant element in device, may refer to combine Fig. 3,4A, 4B, 5A, 5B and carries out
Detailed description.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, can
To realize by another way.Such as, the part steps in said method embodiment can be carried out again
Combination, or can execution sequence before changing section step.
The above, the only detailed description of the invention of the disclosure, but the protection domain of the disclosure does not limit to
In this, any those familiar with the art, can be easily in the technical scope that the disclosure discloses
Expect change or replace, all should contain within the protection domain of the disclosure.Therefore, the protection of the disclosure
Scope should described be as the criterion with scope of the claims.
Claims (13)
1. an antenna assembly, is applied to an electronic equipment, and this electronic equipment has and includes conductive region
Shell, the first signal transceiver and secondary signal transceiver, this antenna assembly includes:
Department of Radiation, utilizes described conductive region to be formed, for radiation and reception antenna signal, this antenna
Signal includes the first antenna signal of the first frequency range and the second aerial signal of the second frequency range, this first frequency range
Frequency be different from the frequency of this second frequency range；
Resonant element, is connected to described Department of Radiation, transmits described first day for cooperating with this Department of Radiation
At least one in line signal and the second aerial signal；
First feed end, is positioned in the primary importance of described Department of Radiation, for described Department of Radiation and with institute
State feed antenna signal between the first signal transceiver that first antenna signal is corresponding；
Second feed end, is positioned in the second position being different from described primary importance of described Department of Radiation, uses
In feed antenna between described Department of Radiation and the secondary signal transceiver corresponding with described second aerial signal
Signal.
Antenna assembly the most according to claim 1, also includes: the first earth terminal, is positioned at described Department of Radiation
The 3rd position, the 3rd position, between the second position of described primary importance, is used for reducing described
Impact between first antenna signal and the second aerial signal.
Antenna assembly the most according to claim 1, wherein, described resonant element includes:
Capacitor, the first end is connected to the 4th position of described Department of Radiation；
Inducer, its first end is connected to the second end of described capacitor, and the second end of this inducer
It is connected to ground.
Antenna assembly the most according to claim 3, wherein, described 4th position is divided with described primary importance
Not being positioned at the different both sides of the described second position, described resonant element drops for cooperating with this Department of Radiation
Interference signal in low described second aerial signal.
Antenna assembly the most according to claim 3, wherein,
Described second frequency range includes that frequency is less than the low-frequency range of preset frequency and frequency higher than described predetermined frequency
The high band of rate, described capacitor is variable condenser, the capacitance of this variable condenser can change with
Change the frequency of described low-frequency range.
Antenna assembly the most according to claim 5, wherein, described inducer is variable inductor, and this can
The inductance value of varindor can change the frequency of described high band.
Antenna assembly the most according to claim 6, wherein, described inducer is variable inductor, described
Variable inductor includes:
Multiple inductance elements, each inductance element has different inductance value；
Switch, for one of the plurality of inductance element is connected to described capacitor, variable to change this
The inductance value of inducer.
Antenna assembly the most according to claim 1, also includes: matching unit, is connected to described second feedback
Between electricity end and secondary signal transceiver, it is used for making described Department of Radiation and described secondary signal transceiver phase
Join, the second aerial signal in the aerial signal from the second feed end is supplied to described secondary signal and receives
Send out device, and the second aerial signal from secondary signal transceiver is supplied to the second feed end with via spoke
The portion of penetrating radiate.
Antenna assembly the most according to claim 1, also includes: the second earth terminal, is positioned at described Department of Radiation
The 5th position, the 5th position between the second position of described primary importance, this second earth terminal
Be connected to ground path be different from described first earth terminal be connected to ground path.
10. an electronic equipment, including the antenna assembly according to any one of claim 1-9.
11. 1 kinds of control methods for antenna assembly, this antenna assembly includes utilizing leading of electronic equipment
Electricity shell formed Department of Radiation, the first feed end being positioned in the primary importance of Department of Radiation, be positioned at Department of Radiation
The second position on the second feed end and the resonant element that is connected with described Department of Radiation, described control method
Including:
Control described resonant element to make the radiation of described Department of Radiation and to receive the first antenna letter of the first frequency range
Number, this first antenna signal via described first feed end be sent in electronic equipment corresponding to first day
First signal transceiver of line signal；
Control described resonant element to make the radiation of described Department of Radiation and to receive the second antenna letter of the second frequency range
Number, this second aerial signal via described second feed end be sent in electronic equipment corresponding to second day
The secondary signal transceiver of line signal, the frequency of this second frequency range is different from the frequency of this first frequency range.
12. control methods according to claim 11, wherein, described resonant element includes variable condenser,
Described second frequency range includes that frequency is less than the low-frequency range of preset frequency and frequency higher than described preset frequency
High band, the described resonant element of described control makes the radiation of described Department of Radiation and receives the second of the second frequency range
Aerial signal includes:
Determine the frequency values of low-frequency range in described second frequency range；
Change the capacitance of described variable condenser to make determined by the radiation of described Department of Radiation and reception have
Second aerial signal of the frequency values of low-frequency range.
13. control methods according to claim 12, wherein, described resonant element also include with described can
The variable inductor that variodenser is connected in series, the described resonant element of described control makes described Department of Radiation spoke
The second aerial signal penetrating and receiving the second frequency range includes:
Determine the frequency values of high band in described second frequency range；
Change the inductance value of described variable inductor to make determined by the radiation of described Department of Radiation and reception have
Second aerial signal of the frequency values of high band.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510122841.4A CN106033841A (en) | 2015-03-19 | 2015-03-19 | Antenna device, electronic equipment and control method for antenna device |
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| CN201510122841.4A CN106033841A (en) | 2015-03-19 | 2015-03-19 | Antenna device, electronic equipment and control method for antenna device |
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| CN201510122841.4A Pending CN106033841A (en) | 2015-03-19 | 2015-03-19 | Antenna device, electronic equipment and control method for antenna device |
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| CN108767435A (en) * | 2018-08-20 | 2018-11-06 | 深圳市道通智能航空技术有限公司 | Antenna and unmanned vehicle |
| CN111106440A (en) * | 2018-10-26 | 2020-05-05 | 三星电机株式会社 | Chip antenna module |
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| CN112350050A (en) * | 2019-08-09 | 2021-02-09 | 北京小米移动软件有限公司 | Antenna applied to terminal and terminal |
| CN112805877A (en) * | 2018-09-28 | 2021-05-14 | 高通股份有限公司 | Common radiator multi-band antenna system |
| WO2021136232A1 (en) * | 2019-12-31 | 2021-07-08 | 维沃移动通信有限公司 | Antenna structure and electronic device |
| WO2022213611A1 (en) * | 2021-04-06 | 2022-10-13 | 深圳市广和通无线股份有限公司 | Antenna assembly, antenna apparatus, and radio frequency control method |
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| WO2023273575A1 (en) * | 2021-06-30 | 2023-01-05 | 中兴通讯股份有限公司 | Multi-antenna system with multi-feed co-radiation, and mobile terminal |
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Application publication date: 20161019 |