CN108206331A - Antenna assembly and its mobile terminal - Google Patents
Antenna assembly and its mobile terminal Download PDFInfo
- Publication number
- CN108206331A CN108206331A CN201611186204.4A CN201611186204A CN108206331A CN 108206331 A CN108206331 A CN 108206331A CN 201611186204 A CN201611186204 A CN 201611186204A CN 108206331 A CN108206331 A CN 108206331A
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- antenna
- control unit
- unit
- signal
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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Abstract
A kind of antenna assembly includes first antenna, and first duplexer, control unit, the first matching adjusts unit and the first coupling adjusts unit.First antenna is used to send and receive signal.First duplexer is electrically connected to first antenna, for by the Signal separator that first antenna receives into low frequency signal and high-frequency signal.Control unit is used to judge the intensity for the signal that first antenna receives.The first coupling of signal strength control of low frequency signal after control unit is detached according to first duplexer adjusts the unit resonance frequency point that will adjust first antenna, to extend the low frequency bandwidth of first antenna and change low frequency operation frequency range.Control unit detached according to first duplexer after high-frequency signal signal strength control first matching adjust unit adjust first antenna resonance frequency point, with extended high frequency bandwidth and change high-frequency work frequency, and further expand the low frequency bandwidth of first antenna and change low frequency operation frequency range.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of antenna assemblies and its mobile terminal.
Background technology
With the development that 4G communicates, the bandwidth range of personal terminal product radio frequency covering is more and more wider so that terminal antenna
Bandwidth expand to 698-960MHZ and 1710-2690MHZ from 824-960MHZ and 1710-2170MHZ.And end product is wanted
It asks and more does smaller, the more do the more thin, cause the bandwidth and limited coverage area of end product, end product receiving and transmitting signal is bad.Frequently
Wide scope is more and more wider and is limited to the limitation of the volume of antenna and mechanism, this brings great challenge to Antenna Design.
Invention content
In view of this, it is necessary to a kind of antenna assembly be provided, to solve the problems, such as that bandwidth is limited, it is a kind of to there is a need to offer
Mobile terminal.
The antenna assembly that an embodiment of the present invention provides, which is characterized in that the antenna assembly includes：
First antenna, for sending and receiving signal；
First duplexer is electrically connected to the first antenna, for by the Signal separator that the first antenna receives into
Low frequency signal and high-frequency signal；
Control unit is electrically connected to the first antenna, for judging the low frequency signal after the first duplexer separation
With the signal strength of high-frequency signal；
First coupling adjusts unit, is electrically connected to described control unit, described control unit is according to the first duplexer
The signal strength of low frequency signal after separation, control first coupling adjust the resonance frequency that unit adjusts the first antenna
Point, to extend the low frequency bandwidth of the first antenna and change low frequency operation frequency range；
First matching adjusts unit, is electrically connected to described control unit, described control unit is according to the first duplexer
The signal strength of high-frequency signal after separation controls first matching unit to adjust the resonance frequency point of the first antenna, with
Extended high frequency bandwidth and change high-frequency work frequency range, and further expand the low frequency bandwidth of the first antenna and change low frequency work
Make frequency range.
Preferably, first coupling adjusts unit and includes：
First switching switch, is electrically connected to described control unit；
At least one inductance, one end of at least one inductance are electrically connected to first switching switch, it is described at least
The other end ground connection of one inductance；Wherein
Described control unit controls the first switching switch selection to be connected to according to the signal strength of the low frequency signal
One of described at least one inductance to adjust the resonance frequency point of the first antenna, extends the low frequency bandwidth of the first antenna
With change low frequency operation frequency range.
Preferably, first matching adjusts unit and includes：
Second switching switch, is electrically connected to described control unit；
At least one inductance, one end of at least one inductance are electrically connected to second switching switch, it is described at least
The other end of one inductance is electrically connected to the first duplexer；Wherein
Described control unit controls the second switching switch selection to be connected to according to the signal strength of the high-frequency signal
One of described at least one inductance, to adjust the resonance frequency point of the first antenna, extended high frequency bandwidth and change high-frequency work
Frequency range, and further expand the low frequency bandwidth of the first antenna and change low frequency operation frequency range.
Preferably, the antenna assembly further includes：
Second antenna, for sending and receiving signal；
Second duplexer is electrically connected to second antenna, for by the Signal separator that second antenna receives into
Low frequency signal and high-frequency signal；
Second coupling adjusts unit, is electrically connected to described control unit, described control unit is according to second duplexer
The signal strength of low frequency signal after separation, control second coupling adjust the resonance frequency that unit adjusts second antenna
Point, to extend the low frequency bandwidth of second antenna and change low frequency operation frequency range；
Second matching adjusts unit, is electrically connected to described control unit, described control unit is according to second duplexer
The signal strength of high-frequency signal after separation controls second matching unit to adjust the resonance frequency point of second antenna, with
Extended high frequency bandwidth and change high-frequency work frequency range, and further expand the low frequency bandwidth of second antenna and change low frequency work
Make frequency range..
Preferably, second coupling unit includes：
Third switching switch, is electrically connected to described control unit；
At least one inductance, one end of at least one inductance are electrically connected to the third switching switch, it is described at least
The other end ground connection of one inductance；Wherein
Described control unit controls the third according to the signal strength of the low frequency signal after second diplexer separates
Switching switch selection is connected to one of described at least one inductance, to adjust the resonance frequency point of second antenna, described in extension
The low frequency bandwidth of second antenna and change low frequency operation frequency range.
Preferably, second matching unit includes：
4th switching switch, is electrically connected to described control unit；
At least one inductance, one end of at least one inductance are electrically connected to the 4th switching switch, it is described at least
The other end of one inductance is electrically connected to second duplexer；Wherein
Described control unit is according to the signal strength of the high-frequency signal after second diplexer separates, control the described 4th
Switching switch selection is connected to one of described at least one inductance, adjusts the resonance frequency point of second antenna adjustments, with extension
High frequency bandwidth and change high-frequency work frequency range, and further expand the low frequency bandwidth of second antenna and change low frequency operation frequency
Section.
Preferably, the antenna assembly further includes：
Sensing unit is electrically connected to described control unit, for sensing human body and the first antenna and the second antenna
Distance；
5th switch unit, is electrically connected to described control unit and the first antenna, between the second antenna, for selecting
The first antenna or second antenna transmitting receive signal；Wherein
Described control unit is additionally operable to be less than when the distance of the sensing units sense to face close to the first antenna
Close to second antenna apart from when, described control unit output first control signal controls the 5th switch unit choosing
It selects the second antenna transmitting or receives signal；
Described control unit is additionally operable to be less than when the distance of the sensing units sense to face close to second antenna
Close to the first antenna apart from when, described control unit output second control signal controls the 5th switch unit choosing
It selects the first antenna transmitting or receives signal.
Preferably, the antenna assembly further includes：
First sensing unit is electrically connected to described control unit and the first antenna, for sensing human body and described the
One antenna distance；
Second sensing unit is electrically connected to described control unit and second antenna, for sensing human body and described the
Two antenna distances；
5th switch unit, is electrically connected to described control unit and the first antenna, between the second antenna, for selecting
The first antenna or second antenna transmitting receive signal；Wherein
Described control unit is additionally operable to when the sensing units sense is to human body touching or close to the first antenna, institute
Control unit output first control signal is stated, the 5th switch unit is controlled to select the second antenna transmitting or receive letter
Number；
Described control unit is additionally operable to when the sensing units sense is to human body touching or close to second antenna, institute
Control unit output second control signal is stated, the 5th switch unit is controlled to select the first antenna transmitting or receive letter
Number.
The present invention also provides a kind of mobile terminal, including above-mentioned antenna assembly.
Relative to antenna assembly and its mobile terminal that the prior art, embodiment of the present invention provide, pass through control unit
The signal strength received according to first antenna, the first matching of control adjust the resonance frequency point that unit adjusts first antenna, extension
The low frequency bandwidth of first antenna and the low frequency operation frequency range for changing first antenna.It is received by control unit according to first antenna
Signal strength, control the first coupling unit adjust first antenna resonance frequency point, to further expand the low frequency of first antenna
Bandwidth and change low frequency operation frequency range, while extend the high frequency bandwidth of first antenna and change high-frequency work frequency range.First matching
Adjust unit and combine the first coupling and adjust unit and strengthen expansion low-frequency bandwidth and extended high frequency bandwidth, solve end product bandwidth and
The problem of limited coverage area, improves end product receiving and transmitting signal quality.
Description of the drawings
Fig. 1 is the structure diagram of one embodiment of inventive antenna device and its mobile terminal.
Fig. 2 is the circuit diagram of one embodiment of inventive antenna device and its mobile terminal.
Fig. 3 is inventive antenna device and its circuit diagram of another embodiment of mobile terminal.
Fig. 4 is inventive antenna device and its circuit diagram of another embodiment of mobile terminal.
Fig. 5 is the adjusting effect of the first coupling adjusting one embodiment of unit in inventive antenna device and its mobile terminal
Fruit schematic diagram.
Fig. 6 is the adjusting effect of the first matching adjusting one embodiment of unit in inventive antenna device and its mobile terminal
Fruit schematic diagram.
Main element symbol description
Antenna assembly 100,100a, 100b
First antenna 1001
First duplexer 1002
Control unit 1003
First coupling adjusts unit 1004
First matching adjusts unit 1005
Second antenna 1006
Second duplexer 1007
Second coupling adjusts unit 1008
Second matching adjusts unit 1009
First switch unit 1014
Second switch unit 1015
Third switch unit 1018
4th switch unit 1019
Inductance L1-L16
Sensing unit 1010
5th switch unit 1011
Mobile terminal 200
Following specific embodiment will be further illustrated the present invention with reference to above-mentioned attached drawing.
Specific embodiment
It is shown in Figure 1, it is the structure diagram of 200 1 embodiment of inventive antenna device 100 and mobile terminal.
In present embodiment, mobile terminal 200 includes antenna assembly 100.Antenna assembly 100 includes first antenna 1001, the first duplex
Device 1002, control unit 1003, the first coupling adjust the matching of unit 1004 and first and adjust unit 1005.First antenna 1001 is used
In reception and transmitting signal.First duplexer 1002 is electrically connected to first antenna 1001.First duplexer 1002 includes all the way
Low-pass filter and all the way high-pass filter, for the Signal separator that first antenna 1001 receives into low frequency signal and high frequency
Signal.Control unit 1003 is electrically connected to first duplexer 1002, for judging the low frequency after first duplexer 1002 detaches
The signal strength of signal and high-frequency signal.First coupling adjusts unit 1004 and is electrically connected to first duplexer 1002 and control unit
1003.Control unit 1003 adjusts unit 1004 according to the first coupling of the signal strength of low frequency signal control and adjusts first antenna
1001 resonance frequency point, with the low frequency operation frequency range for extending the low frequency bandwidth of first antenna 1001 and changing first antenna 1001.
In the present embodiment, control unit 1003 adjusts unit 1004 according to the frequency of low frequency signal to adjust the first coupling, will
First antenna 1001 is adjusted to the resonance frequency point of respective frequencies.First matching adjusts unit 1005 and is electrically connected to control unit
1003, for receiving low frequency signal and high-frequency signal.Control unit 1003 controls the first coupling according to the signal strength of high-frequency signal
The resonance frequency point that unit 1005 adjusts first antenna 1001 is closed, to extend the high frequency bandwidth of first antenna 1001 and change high frequency work
Make frequency range, while further expand the low frequency bandwidth of first antenna 1001 and change low frequency operation frequency range.In the present embodiment,
Control unit 1003 adjusts the matching of unit 1004 and first according to the frequency of low frequency signal and high-frequency signal to adjust the first coupling
Unit 1005 is adjusted, first antenna 1004 is adjusted to corresponding frequency resonance frequency point, specifically how to adjust, says below
It is bright.
In another embodiment of the present invention, control unit 1003 is according to low frequency signal and the RSSI of high-frequency signal
(Received Signal Strength Indication) adjusts the matching of unit 1004 and first to control to adjust the first coupling
Unit 1005 is adjusted, to adjust the resonance frequency point of first antenna 1001.
In the present embodiment, mobile terminal 200 can be the electronic equipments such as mobile phone, tablet.
It is shown in Figure 2, it is the circuit diagram of 100 1 embodiment of inventive antenna device.In the present embodiment,
First coupling adjusts unit 1004 and is adjusted for parallel resonance, including the first switch unit 1014 and multiple inductance L1, L2, L3, L4
(in present embodiment, only for four, but not being limited with four, can include fewer of more than four inductance).At this
In embodiment, the first switch unit 1014 is a pair of four RF switches, and the first switch unit 1014 is electrically connected to control unit
One end of 1003, inductance L1-L4 are electrically connected to the first switch unit 1014, other end ground connection.Control unit 1003 is according to low frequency
The signal frequency of signal, control the first switching switch 1014 selection are connected to the inductance of one of inductance L1-L4, adjust the
The resonance frequency point of one antenna 1001, to extend the low frequency bandwidth of first antenna 1001 and change low frequency operation frequency range.In the present invention
In one embodiment, inductance L1 values are 10nH, and inductance L2 values are 15nH, and inductance L3 values are 20nH, and inductance L4 values are
25nH, (only as example, user can be according to the value range of main adjustment inductance).Each inductance value corresponds to certain frequency
Range e.g., is set in control unit 1003：During Frequency ranging from 700-800MHz, corresponding inductance value is 25nH, at this
In one frequency range, the first coupling adjusts that unit 1004 selects to be connected to inductance value can be by first antenna 1001 for the inductance of 25nH
It adjusts to most suitable resonance frequency point.When setting Frequency ranging from 800-1000MHz, corresponding inductance value is 20nH,
In this frequency range, the first coupling adjusts that unit 1004 selects to be connected to inductance value can be by first antenna for the inductance of 20nH
1001 are adjusted to most suitable resonance frequency point.For example, when the frequency range of low frequency signal is：During 700-800MHZ, control
Unit 1003 adjusts unit 1004 according to the first coupling of frequency range control and is connected to inductance L4, and the value of inductance L4 is
25nH.When the frequency range of low frequency signal is 800-1000MHz, control unit 1003 controls the first coupling according to the frequency range
It closes adjusting unit 1004 and is connected to inductance L3, the value of inductance L3 is 20nH.Only illustrate as example, be not intended as the present invention's
Limitation.Signal frequency is lower, and the inductance value that the first coupling adjusts the inductance that unit 1004 accesses is bigger.User can be according to reality
Demand sets certain the first coupling of frequency range control in control unit 1003 and adjusts the selection of unit 1004 with corresponding inductance
The inductance of value.When the frequency range of setting is smaller, it is more that the first coupling adjusts the inductance that unit 1004 includes.
In the present embodiment, the first matching adjusts unit 1005 and is adjusted for series resonance, including the second switch unit
1015 and multiple inductance L5, L6, L7, L8 (in present embodiment, only for four, but are not limited with four, can included
Fewer of more than four inductance).In the present embodiment, the second switch unit 1015 is a pair of four RF switches, and first switches
Unit 1015 is electrically connected to control unit 1003, and inductance L5-L8 one end is electrically connected to the second switch unit 1015, and the other end is electrically connected
It is connected to first duplexer 1002.Control unit 1003 controls the second switching switch 1015 to select according to the signal strength of high-frequency signal
The inductance for being connected to one of inductance L5-L8 is selected, the resonance frequency point of first antenna 1001 is adjusted, to extend first antenna 1001
High frequency bandwidth and change high-frequency work frequency range, while first matching adjust unit 1005 can also further expand first antenna
1001 low frequency bandwidth and change low frequency operation frequency range.In an embodiment of the present invention, inductance L5 values are 3nH, inductance L6
Value is 6nH, and inductance L7 values are 9nH, and (only as example, user can be according to main adjustment electricity for 12nH for inductance L8 values
The value of sense).Each inductance value corresponds to certain frequency range, e.g., is set in control unit 1003：Higher frequency is ranging from
During 1700-2000MHz, corresponding inductance value is 6nH, and in this frequency range, the first matching adjusts the selection of unit 1005 and connects
First antenna 1001 can be adjusted to most suitable resonance frequency point by being connected to the inductance that inductance value is 6nH.Set higher frequency range
During for 2000-3000MHz, corresponding inductance value is 3nH, and in this frequency range, the first coupling adjusts unit 1004 and selects
First antenna 1001 can be adjusted to most suitable resonance frequency point by being connected to the inductance that inductance value is 3nH.For example, work as high frequency
When the frequency range of signal is 1700-2000MHZ, control unit 1003 matches according to higher frequency scope control first and adjusts list
Member 1005 is connected to inductance L6.When the frequency range of high-frequency signal is 2000-3000MHz, control unit 1003 is according to high frequency
The first matching of frequency range control adjusts unit 1004 and is connected to inductance L5.Only illustrate as example, be not intended as the present invention's
Limitation.Signal frequency is higher, and the inductance value that the first matching adjusts the inductance that unit 1005 accesses is smaller.User can be according to reality
Demand sets certain the first matching of frequency range control in control unit 1003 and adjusts the selection of unit 1005 with corresponding inductance
The inductance of value.When the frequency range of setting is smaller, it is more that the first matching adjusts the inductance that unit 1005 includes.
It is shown in Figure 3, it is the circuit diagram of 200 1 embodiment of inventive antenna device 100a and mobile terminal.
In the present embodiment, mobile terminal 200 includes antenna assembly 100a, and mobile terminal 200 can be that the electronics such as mobile phone, tablet are set
It is standby.Antenna assembly 100a includes first antenna 1001, first duplexer 1002, control unit 1003, the first coupling adjusting unit
1004 and first matching adjust unit 1005.First coupling adjusts unit 1004 and includes the first switch unit 1014 and multiple inductance
L1, L2, L3, L4, the first coupling adjust unit 1015 and include the second switch unit 1015 and multiple inductance L5, L6, L7, L8.Its
In, first antenna 1001, first duplexer 1002, control unit 1003, the first coupling adjusting matching tune of unit 1004 and first
Connection relation and the operation principle for saving unit 1005 are similar to described in Fig. 1, so being no longer described in detail.
In the present embodiment, antenna assembly 100a further includes the second antenna 1006, the second duplexer 1007, the second matching
The matching of adjuster 1008 and second adjusts unit 1009.Second antenna 1006 is used to receive and emit signal.Second duplexer
1007 are electrically connected to first antenna 1006.Second duplexer 1007 includes low-pass filter all the way and all the way high-pass filter,
For by the Signal separator that the second antenna 1006 receives into low frequency signal and high-frequency signal.Control unit 1003 is electrically connected to
Two duplexers 1007, for judging the signal strength of low frequency signal and high-frequency signal after the second diplexer separates.Second coupling
It adjusts unit 1008 and is electrically connected to control unit 1003, control unit 1003 is according to the signal strength of low frequency signal, control second
Coupling adjusts the resonance frequency point that unit 1008 adjusts the second antenna 1006, to extend the low frequency bandwidth of the second antenna 1006 and change
The low frequency operation frequency range of first antenna 1006.Second matching adjusts unit 1009 and is electrically connected to control unit 1003.Control unit
1003 adjust the resonance frequency point of the second antenna 1006 according to the signal strength of high-frequency signal, the second coupling unit 1009 of control, with
It extends the high frequency bandwidth of the second antenna 1006 and changes high-frequency work frequency range, while further expand the low frequency of the second antenna 1006
Bandwidth and change low frequency operation frequency range.
In the present embodiment, the second coupling adjusting unit 1008 includes third switch unit 1018 and multiple inductance L9,
L10, L11, L12 (in present embodiment, only for four, but are not limited with four, can included fewer of more than four
Inductance).In the present embodiment, third switch unit 1018 is a pair of four RF switches, and third switch unit 1018 is electrically connected
In control unit 1003, one end of inductance L9-L12 is electrically connected to third switch unit 1018, other end ground connection.Control unit
1003 are connected to one of inductance L9-L12's according to the signal strength of low frequency signal, 1018 selection of control third switching switch
Inductance adjusts the resonance frequency point of the second antenna 1006, to extend the low frequency bandwidth of the second antenna 1006 and change low frequency operation frequency
Section.In the present embodiment, the second coupling adjusts the regulative mode of unit 1008 and first and couples the adjusting for adjusting unit 1004
Mode is similar, so being no longer described in detail.
In the present embodiment, the second matching adjusting unit 1009 includes the 4th switch unit 1019 and multiple inductance L13,
L14, L15, L16 (in present embodiment, only for four, but are not limited with four, can included fewer of more than four
Inductance).In the present embodiment, the 4th switch unit 1019 is a pair of four RF switches, and the 4th switch unit 1019 is electrically connected
In control unit 1003, inductance L13-L16 one end is electrically connected to the 4th switch unit 1019, and the other end is electrically connected to the second duplex
Device 1007.Control unit 1003 controls the selection of the 4th switching switch 1019 to be connected to inductance according to the signal strength of high-frequency signal
The inductance of one of L13-L16 adjusts the resonance frequency point of the second antenna 1006, to extend the high frequency bandwidth of the second antenna 1006
With change high-frequency work frequency range, while extend further the second antenna 1006 low frequency bandwidth and change low frequency operation frequency range.
In the present embodiment, the second coupling adjusts the regulative mode of unit 1008 and first and couples the regulative mode for adjusting unit 1004
It is similar, so being no longer described in detail.
In the present embodiment, antenna assembly 100a further includes 1010 and the 5th switch unit 1011 of sensing unit.Sensing
Unit 1010 is electrically connected to control unit 1003, for sensing the distance of human body and 1001 and second antenna 1006 of first antenna.
5th switch unit 1011 is electrically connected to control unit 1003 and first antenna 1001, between the second antenna 1006, for selecting
1001 or second antenna 1006 of first antenna emits or receives signal.Control unit 1003 is additionally operable to sense when sensing unit 1010
To face close to the distance of first antenna 1001 be less than close to the second antenna 1006 apart from when, control unit 1003 output first
Signal is controlled, the 5th switch unit 1011 of control selects the second antenna 1006 to emit or receive signal.When sensing unit 1010 is felt
Should arrive face close to the second antenna 1006 distance be less than first antenna 1001 apart from when, control unit 1003 output second control
Signal processed, control the 5th switch unit 1011 selection first antenna 1001 emit or receive signal.So as to which human body be avoided too to connect
Nearly antenna, influences antenna bandwidth.
It refers to shown in attached drawing 4, is that the circuit of 200 1 embodiment of inventive antenna device 100a and mobile terminal is illustrated
Figure.In the present embodiment, antenna assembly 100b includes first antenna 1001, first duplexer 1002, control unit 1003, and the
One coupling adjusts unit 1004, and the first matching adjusts unit 1005, the second antenna 1006, the second duplexer 1007, the second coupling
It adjusts the matching of unit 1008 and second and adjusts unit 1009, connection relation and operation principle and antenna assembly shown in Fig. 3
100a is similar, so being no longer described in detail.In the present embodiment, antenna assembly 100b further includes the first sensing unit 1010, and the 5th
1011 and second sensing unit 1012 of switch unit.First sensing unit 1010 is electrically connected to control unit 1003, for sensing
Human body and the distance of first antenna 1001.Second sensing unit 1012 is electrically connected to control unit 1003, for sense human body with
The distance of second antenna 1006.When the first sensing unit 1010 sense human body touch or close to first antenna 1001 when, control
Unit 1003 processed exports first control signal, and the 5th switch unit 1011 of control selects the second antenna 1006 to emit or receive letter
Number.When the second sensing unit 1012 senses that human body touches or during close to the second antenna 1006, the output of control unit 1,003 the
Two control signals, control the 5th switch unit 1011 selection first antenna 1001 emit or receive signal.So as to avoid human body too
It crosses close to antenna, influences antenna bandwidth.
It is shown in Figure 5, it is that the first coupling is adjusted in 200 1 embodiment of inventive antenna device 100a and mobile terminal
The regulating effect figure of unit 1004.In the present embodiment, inductance L1 values are 10nH, and inductance L2 values are 15nH, inductance L3
Value is 20nH, and inductance L4 values are 25nH (only as example, user can be according to the value range of main adjustment inductance).It is right
In low frequency band, when not having to access inductance, the bandwidth covering of low frequency only has 250MHZ, and when accessing inductance, low frequency bandwidth expands
Exhibition, working frequency range change.When low frequency signal frequency range is 700-800MHZ, the selection of the first switch unit 1014 switches to electricity
Feel L4, low frequency bandwidth is extended to 320MHZ by 250MHZ, and working frequency range deviates to the left.
It is shown in Figure 6, it is that the first matching is adjusted in 200 1 embodiment of inventive antenna device 100a and mobile terminal
The regulating effect figure of unit 1004.In the present embodiment, inductance L5 values are 3nH, and inductance L6 values are 6nH, and inductance L7 takes
It is worth for 9nH, inductance L8 values are 12nH (only as example, user can be according to the value range of main adjustment inductance).For
Low frequency band, when not having to access inductance, the bandwidth covering of low frequency only has 250MHZ；For high-frequency band, when not having, access is electric
During sense, high frequency bandwidth only has 100MHZ.When accessing inductance, low frequency bandwidth extension, working frequency range changes, while high frequency bandwidth expands
Exhibition, working frequency range change.As high-frequency signal frequency ranging from 1700-2000MHz, the selection of the second switch unit 1015 switches to
Inductance L6, high frequency bandwidth are extended to 330MHZ by 100MHZ, while further expand low frequency bandwidth to 340MHZ, working frequency range to
Left avertence is moved.
Relative to antenna assembly and its mobile terminal that the prior art, embodiment of the present invention provide, pass through control unit
1003 signal strengths received according to first antenna 1001, the first coupling of control adjust unit 1004 and adjust first antenna 1001
Resonance frequency point, with extend the low frequency bandwidth of first antenna 1001 and change first antenna 1001 low frequency operation frequency range.Pass through
The signal strength that control unit 1003 is received according to first antenna 1001, the first coupling unit 1005 of control adjust first antenna
1001 resonance frequency point to further expand the low frequency bandwidth of first antenna 1001 and change low frequency operation frequency range, extends simultaneously
The high frequency bandwidth of first antenna 1001 and change high-frequency work frequency range.First coupling adjusts unit 1004 and combines the first matching adjusting
1005 extended high frequency bandwidth of unit obtains while strengthens expansion low-frequency bandwidth, solves asking for end product bandwidth and limited coverage area
Topic improves end product receiving and transmitting signal quality.
Those skilled in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as within the spirit of the present invention, embodiment of above is made
Appropriate change and variation all fall within the scope of protection of present invention.
Claims (9)
1. a kind of antenna assembly, which is characterized in that the antenna assembly includes：
First antenna, for sending and receiving signal；
First duplexer is electrically connected to the first antenna, for by the Signal separator that the first antenna receives into low frequency
Signal and high-frequency signal；
Control unit is electrically connected to the first antenna, for judging low frequency signal and height after the first duplexer separation
The signal strength of frequency signal；
First coupling adjusts unit, is electrically connected to described control unit, described control unit is detached according to the first duplexer
The signal strength of low frequency signal afterwards, control first coupling adjust the resonance frequency point that unit adjusts the first antenna, with
It extends the low frequency bandwidth of the first antenna and changes low frequency operation frequency range；
First matching adjusts unit, is electrically connected to described control unit, described control unit is detached according to the first duplexer
The signal strength of high-frequency signal afterwards controls first matching unit to adjust the resonance frequency point of the first antenna, with extension
High frequency bandwidth and change high-frequency work frequency range, and further expand the low frequency bandwidth of the first antenna and change low frequency operation frequency
Section.
2. antenna assembly as described in claim 1, which is characterized in that first coupling adjusts unit and includes：
First switching switch, is electrically connected to described control unit；
At least one inductance, one end of at least one inductance is electrically connected to first switching switch, described at least one
The other end ground connection of inductance；Wherein
Described control unit controls the first switching switch selection to be connected to described according to the signal strength of the low frequency signal
One of at least one inductance to adjust the resonance frequency point of the first antenna, extends the low frequency bandwidth of the first antenna and changes
Become low frequency working frequency range.
3. antenna assembly as described in claim 1, which is characterized in that first matching adjusts unit and includes：
Second switching switch, is electrically connected to described control unit；
At least one inductance, one end of at least one inductance is electrically connected to second switching switch, described at least one
The other end of inductance is electrically connected to the first duplexer；Wherein
Described control unit controls the second switching switch selection to be connected to described according to the signal strength of the high-frequency signal
One of at least one inductance, to adjust the resonance frequency point of the first antenna, extended high frequency bandwidth and change high-frequency work frequency range,
And it further expands the low frequency bandwidth of the first antenna and changes low frequency operation frequency range.
4. antenna assembly as described in claim 1, which is characterized in that the antenna assembly further includes：
Second antenna, for sending and receiving signal；
Second duplexer is electrically connected to second antenna, for by the Signal separator that second antenna receives into low frequency
Signal and high-frequency signal；
Second coupling adjusts unit, is electrically connected to described control unit, described control unit is according to second diplexer separates
The signal strength of low frequency signal afterwards, control second coupling adjust the resonance frequency point that unit adjusts second antenna, with
It extends the low frequency bandwidth of second antenna and changes low frequency operation frequency range；
Second matching adjusts unit, is electrically connected to described control unit, described control unit is according to second diplexer separates
The signal strength of high-frequency signal afterwards controls second matching unit to adjust the resonance frequency point of second antenna, with extension
High frequency bandwidth and change high-frequency work frequency range, and further expand the low frequency bandwidth of second antenna and change low frequency operation frequency
Section.
5. antenna assembly as claimed in claim 4, which is characterized in that second coupling adjusts unit and includes：
Third switching switch, is electrically connected to described control unit；
At least one inductance, one end of at least one inductance is electrically connected to the third switching switch, described at least one
The other end ground connection of inductance；Wherein
Described control unit controls the third to switch according to the signal strength of the low frequency signal after second diplexer separates
Switch selection is connected to one of described at least one inductance, to adjust the resonance frequency point of second antenna, extension described second
The low frequency bandwidth of antenna and change low frequency operation frequency range.
6. antenna assembly as claimed in claim 4, which is characterized in that second matching adjusts unit and includes：
4th switching switch, is electrically connected to described control unit；
At least one inductance, one end of at least one inductance is electrically connected to the 4th switching switch, described at least one
The other end of inductance is electrically connected to second duplexer；Wherein
Described control unit is according to the signal strength of the high-frequency signal after second diplexer separates, control the 4th switching
Switch selection is connected to one of described at least one inductance, the resonance frequency point of second antenna adjustments is adjusted, with extended high frequency
Bandwidth and change high-frequency work frequency range, and further expand the low frequency bandwidth of second antenna and change low frequency operation frequency range.
7. antenna assembly as claimed in claim 4, which is characterized in that further include：
Sensing unit is electrically connected to described control unit, for sensing human body and the first antenna and the distance of the second antenna；
5th switch unit, is electrically connected to described control unit and the first antenna, described for selecting between the second antenna
First antenna or second antenna transmitting receive signal；Wherein
Described control unit is additionally operable to approach when distance of the sensing units sense to face close to the first antenna is less than
Second antenna apart from when, described control unit output first control signal controls the 5th switch unit selection institute
It states the transmitting of the second antenna or receives signal；
Described control unit is additionally operable to approach when distance of the sensing units sense to face close to second antenna is less than
The first antenna apart from when, described control unit output second control signal controls the 5th switch unit selection institute
It states first antenna transmitting or receives signal.
8. antenna assembly as claimed in claim 4, which is characterized in that further include：
First sensing unit is electrically connected to described control unit and the first antenna, for sensing human body and described first day
Linear distance；
Second sensing unit is electrically connected to described control unit and second antenna, for sensing human body and described second day
Linear distance；
5th switch unit, is electrically connected to described control unit and the first antenna, described for selecting between the second antenna
First antenna or second antenna transmitting receive signal；Wherein
Described control unit is additionally operable to when the sensing units sense is to human body touching or close to the first antenna, the control
Unit processed exports first control signal, and the 5th switch unit is controlled to select the second antenna transmitting or receive signal；
Described control unit is additionally operable to when the sensing units sense is to human body touching or close to second antenna, the control
Unit processed exports second control signal, and the 5th switch unit is controlled to select the first antenna transmitting or receive signal.
9. a kind of mobile terminal, including the antenna assembly described in any one in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611186204.4A CN108206331B (en) | 2016-12-20 | 2016-12-20 | Antenna device and mobile terminal thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611186204.4A CN108206331B (en) | 2016-12-20 | 2016-12-20 | Antenna device and mobile terminal thereof |
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| Publication Number | Publication Date |
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| CN108206331A true CN108206331A (en) | 2018-06-26 |
| CN108206331B CN108206331B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611186204.4A Active CN108206331B (en) | 2016-12-20 | 2016-12-20 | Antenna device and mobile terminal thereof |
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Also Published As
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| CN108206331B (en) | 2020-11-03 |
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