CN106972870A - A kind of antenna tuning circuit, mobile terminal and antenna tuning method - Google Patents
A kind of antenna tuning circuit, mobile terminal and antenna tuning method Download PDFInfo
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- CN106972870A CN106972870A CN201710206254.2A CN201710206254A CN106972870A CN 106972870 A CN106972870 A CN 106972870A CN 201710206254 A CN201710206254 A CN 201710206254A CN 106972870 A CN106972870 A CN 106972870A
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- transceiver
- performance number
- antenna tuning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
- H01Q13/103—Resonant slot antennas with variable reactance for tuning the antenna
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Transceivers (AREA)
Abstract
The present invention provides a kind of antenna tuning circuit, mobile terminal and antenna tuning method, and the circuit includes：Processor, transceiver, power amplifier, directional coupler, antenna tuner and antenna；Transceiver is used to export input signal to power amplifier, and power amplifier is used to be amplified input signal, and exports the amplified signal after input signal is exaggerated to directional coupler；Directional coupler is used to couple amplified signal, and the positive coupled signal coupled to amplified signal is transmitted to transceiver；Transceiver is additionally operable to transmit the performance number of positive coupled signal to processor；Processor is used to calculate the performance number of positive coupled signal and the difference of predetermined power value, if difference is more than predetermined threshold value, control antenna tuner carries out antenna tuning.So, it is only necessary to which the power of the positive coupled signal of detection makes the process of regulation simpler with regard to that can carry out antenna tuning.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of antenna tuning circuit, mobile terminal and antenna tuning side
Method.
Background technology
With developing rapidly for mobile terminal, mobile terminal has generally entered the life of people, and is people's life
In various aspects bring greatly it is convenient.Can all have in antenna tuning circuit, antenna tuning circuit inside mobile terminal has
Antenna tuner.When antenna mismatch, closed loop antenna tuner can be adjusted according to the mismatch of antenna, but examine
The positive coupled power and reverse coupled power surveyed in antenna tuning circuit, then can just be adjusted.
It can be seen that, in the prior art when antenna mismatch, mobile terminal will detect the positive coupling work(in antenna tuning circuit
It can be just adjusted after rate and reverse coupled power, cause the process of regulation more complicated.
The content of the invention
The embodiment of the present invention provides a kind of antenna tuning circuit, mobile terminal and antenna tuning method, mobile whole to solve
End is when antenna mismatch, the problem of process of regulation is more complicated.
In a first aspect, the embodiment of the present invention provides a kind of antenna tuning circuit, including：
Processor, transceiver, power amplifier, directional coupler, antenna tuner and antenna；
The first end of the processor is connected with the first end of the transceiver, the second end and the work(of the transceiver
The first end connection of rate amplifier, the second end of the power amplifier is connected with the first end of the directional coupler, described
Second end of directional coupler is connected with the first end of the antenna tuner, the second end and the day of the antenna tuner
Line is connected, and the 3rd end of the antenna tuner is connected with the second end of the processor, and the 3rd end of the transceiver and
The three-terminal link of the directional coupler；
Wherein, the transceiver be used for the power amplifier export input signal, the power amplifier be used for pair
The input signal is amplified, and exports the amplified signal after the input signal is exaggerated to the directional coupler；Institute
Stating directional coupler is used to couple the amplified signal, and carries out coupling to the amplified signal to transceiver transmission
The positive coupled signal of conjunction；The transceiver is additionally operable to transmit the performance number of the positive coupled signal to the processor；Institute
Stating processor is used to calculate the performance number of the positive coupled signal and the difference of predetermined power value, is preset if the difference is more than
Threshold value, then control the antenna tuner to carry out antenna tuning, wherein, the predetermined power value is that the processor is prestored
Performance number corresponding with the performance number of the input signal.
Second aspect, the embodiment of the present invention also provides a kind of mobile terminal, including above-mentioned antenna tuning circuit.
The third aspect, the embodiment of the present invention also provides a kind of antenna tuning method, applied to including above-mentioned antenna tuning electricity
The mobile terminal on road, including：
The transceiver of the antenna tuning circuit is controlled to the power amplifier output input letter of the antenna tuning circuit
Number；
The performance number of the positive coupled signal of the transceiver transmission is received, wherein, the positive coupled signal is described
The directional coupler of antenna tuning circuit carries out coupling obtained signal to amplified signal, and the amplified signal is that the power is put
After big device is amplified to the input signal, export to the signal of the directional coupler；
The performance number of the positive coupled signal and the difference of predetermined power value are calculated, if the difference is more than default threshold
Value, then control antenna tuner to carry out antenna tuning, wherein, the predetermined power value is prestoring with the input signal
The corresponding performance number of performance number.
So, a kind of antenna tuning circuit of the embodiment of the present invention, including：It is processor, transceiver, power amplifier, fixed
To coupler, antenna tuner and antenna；The first end of the processor is connected with the first end of the transceiver, the transmitting-receiving
Second end of device is connected with the first end of the power amplifier, the second end and the directional coupler of the power amplifier
First end connection, the second end of the directional coupler is connected with the first end of the antenna tuner, the antenna tuning
Second end of device is connected with the antenna, and the 3rd end of the antenna tuner is connected with the second end of the processor, and institute
State the 3rd end of transceiver and the three-terminal link of the directional coupler；Wherein, the transceiver is used to put to the power
Big device output input signal, the power amplifier is used to be amplified the input signal, and to the directional coupler
Export the amplified signal after the input signal is exaggerated；The directional coupler is used to couple the amplified signal,
And the positive coupled signal coupled to the amplified signal is transmitted to the transceiver；The transceiver is additionally operable to described
Processor transmits the performance number of the positive coupled signal；The processor is used for the performance number for calculating the positive coupled signal
With the difference of predetermined power value, if the difference is more than predetermined threshold value, the antenna tuner is controlled to carry out antenna tuning, its
In, the predetermined power value is the performance number corresponding with the performance number of the input signal that the processor is prestored.This
Sample, in antenna mismatch, it is only necessary to detect the power of positive coupled signal with regard to antenna tuning can be carried out, and without the positive coupling of detection
It is adjusted again after conjunction power and reverse coupled power, makes the process of regulation simpler.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed for description of the embodiment of the present invention
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention,
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of antenna tuning circuit provided in an embodiment of the present invention；
Fig. 2 is the structural representation of another antenna tuning circuit provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of antenna tuning method provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is a kind of structural representation of antenna tuning circuit provided in an embodiment of the present invention, such as Fig. 1 institutes
Show, antenna tuning circuit 100 includes：
Processor 1, transceiver 2, power amplifier 3, directional coupler 4, antenna tuner 5 and antenna 6；
The first end of the processor 1 is connected with the first end of the transceiver 2, the second end of the transceiver 2 and institute
The first end connection of power amplifier 3 is stated, the second end of the power amplifier 3 and the first end of the directional coupler 4 connect
Connect, the second end of the directional coupler 4 is connected with the first end of the antenna tuner 5, the second of the antenna tuner 5
End is connected with the antenna 6, and the 3rd end of the antenna tuner 5 is connected with the second end of the processor 1, and the transmitting-receiving
3rd end of device 2 and the three-terminal link of the directional coupler 4；
Wherein, the transceiver 2 is used to export input signal to the power amplifier 3, and the power amplifier 3 is used for
The input signal is amplified, and the amplified signal after the input signal is exaggerated is exported to the directional coupler 4；
The directional coupler 4 is used to couple the amplified signal, and transmits to enter the amplified signal to the transceiver 2
The positive coupled signal of row coupling；The transceiver 2 is additionally operable to transmit the power of the positive coupled signal to the processor 1
Value；The processor 1 is used to calculate the performance number of the positive coupled signal and the difference of predetermined power value, if the difference is big
In predetermined threshold value, then the antenna tuner 5 is controlled to carry out antenna tuning, wherein, the predetermined power value is the processor 1
The performance number corresponding with the performance number of the input signal prestored.
In the embodiment of the present invention, the first end of above-mentioned processor 1 and the second end are output end.The first of above-mentioned transceiver 2
End and the 3rd end are input, and the second end of transceiver 2 is output end.The first end of above-mentioned power amplifier 3 is input, work(
Second end of rate amplifier 3 is output end.The first end of above-mentioned directional coupler 4 is input, the second end of directional coupler 4
It is output end with the 3rd end.The first end of above-mentioned antenna tuner 5 and the second end are input, the 3rd end of antenna tuner 5
For output end.
In the embodiment of the present invention, above-mentioned power amplifier 3 is amplified to input signal, and multiplication factor here can be
Three times, four times, five times or other multiples etc..The above-mentioned the inside of directional coupler 4 can have one or more coil pair
Amplified signal is coupled, in general, there may be linear relation between positive coupled signal and amplified signal.It is above-mentioned pre-
Can be 10 watts, 20 watts, 30 watts or other performance numbers etc. if threshold value.Above-mentioned predetermined power value is that the processor 1 is pre-
The performance number corresponding with the performance number of the input signal first stored is understood that.For example when the performance number of input signal
For 20 watt-hours, predetermined power value is 40 watts；When the performance number of input signal is 30 watt-hours, predetermined power value is 60 watts.Certainly remove
Outside this, it is also possible to which, when input signal is 20 watt-hours and 21 watt-hours, because the gap between them is smaller, predetermined power value can
To be same 40 watts of numerical value, this mode is also possible.
In the embodiment of the present invention, when circuit normal work, processor 1 receives the positive coupling letter of the transmission of transceiver 2
Number power and the performance number that pre-sets between difference can be less than predetermined threshold value, now the aerial network of indication circuit is just
Normal.When antenna mismatch, because the gain of power amplifier 3 and the coefficient of coup of directional coupler 4 hardly become
Change, and obvious change can occur for the load of power amplifier 3, so as to cause the gain of power amplifier 3 to change.
So power amplifier 3 can produce change than larger output signal, directional coupler 4 when receiving identical input signal
After change is received than larger output signal, due to positive coupled signal and the wired sexual intercourse of signal received, coupling is oriented
Clutch 4 can accordingly produce a change and be sent than larger positive coupled signal, and to transceiver 2.Now transceiver 2 will can become
Change the power transmission than larger positive coupled signal to processor 1, cause the power of the positive coupled signal of the calculating of processor 1
It can be more than predetermined threshold value with the difference between the performance number that pre-sets, illustrate antenna mismatch, so as to can just control day
Line tuner 5 carries out antenna tuning, aerial network is recovered normal state.
In the embodiment of the present invention, above-mentioned antenna tuning circuit may reside in mobile terminal, and mobile terminal can be hand
Machine, tablet personal computer (Tablet Personal Computer), laptop computer (Laptop Computer), individual digital are helped
Manage (personal digital assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device,
) or wearable device (Wearable Device) etc. MID.
A kind of antenna tuning circuit of the embodiment of the present invention, including：Processor 1, transceiver 2, power amplifier 3, orientation
Coupler 4, antenna tuner 5 and antenna 6；The first end of the processor 1 is connected with the first end of the transceiver 2, described
Second end of transceiver 2 is connected with the first end of the power amplifier 3, the second end of the power amplifier 3 with it is described fixed
Connected to the first end of coupler 4, the second end of the directional coupler 4 is connected with the first end of the antenna tuner 5, institute
The second end for stating antenna tuner 5 is connected with the antenna 6, and the of the 3rd end of the antenna tuner 5 and the processor 1
Two ends are connected, and the 3rd end and the three-terminal link of the directional coupler 4 of the transceiver 2；Wherein, the transceiver 2
For exporting input signal to the power amplifier 3, the power amplifier 3 is used to be amplified the input signal,
And export the amplified signal after the input signal is exaggerated to the directional coupler 4；The directional coupler 4 is used for institute
State amplified signal to be coupled, and the positive coupled signal coupled to the amplified signal is transmitted to the transceiver 2；Institute
State the performance number that transceiver 2 is additionally operable to transmit the positive coupled signal to the processor 1；The processor 1 is used to calculate
The performance number of the positive coupled signal and the difference of predetermined power value, if the difference is more than predetermined threshold value, control is described
Antenna tuner 5 carries out antenna tuning, wherein, the predetermined power value is that the processor 1 is prestoring with the input
The corresponding performance number of performance number of signal.The circuit of antenna mismatch can just be entered as long as so detecting the power of positive coupled signal
Row tuning, without that then could be carried out after the positive coupled power and reverse coupled power in detection antenna tuning circuit
Regulation, makes the process of regulation simpler.
Referring to Fig. 2, Fig. 2 is the structural representation of another antenna tuning circuit provided in an embodiment of the present invention, and last
Embodiment is different, adds a switch in the antenna tuning circuit in the present embodiment, the control to circuit can add intelligence.As schemed
Shown in 2, antenna tuning circuit 100 includes：
Processor 1, transceiver 2, power amplifier 3, directional coupler 4, antenna tuner 5, antenna 6 and switch 7；
The first end of the processor 1 is connected with the first end of the transceiver 2, the second end of the transceiver 2 and institute
The first end connection of power amplifier 3 is stated, the second end of the power amplifier 3 passes through switch 7 and the directional coupler 4
First end is connected, and the second end of the directional coupler 4 is connected with the first end of the antenna tuner 5, the antenna tuning
Second end of device 5 is connected with the antenna 6, and the 3rd end of the antenna tuner 5 is connected with the second end of the processor 1,
And the 3rd end of the transceiver 2 and the three-terminal link of the directional coupler 4；
Wherein, the transceiver 2 is used to export input signal to the power amplifier 3, and the power amplifier 3 is used for
The input signal is amplified, and the amplified signal after the input signal is exaggerated is exported to the directional coupler 4；
The directional coupler 4 is used to couple the amplified signal, and transmits to enter the amplified signal to the transceiver 2
The positive coupled signal of row coupling；The transceiver 2 is additionally operable to transmit the power of the positive coupled signal to the processor 1
Value；The processor 1 is used to calculate the performance number of the positive coupled signal and the difference of predetermined power value, if the difference is big
In predetermined threshold value, then the antenna tuner 5 is controlled to carry out antenna tuning, wherein, the predetermined power value is the processor 1
The performance number corresponding with the performance number of the input signal prestored, the switch 7 is used for the closure for controlling circuit.
In the embodiment of the present invention, in addition to a switch 7 is added between power amplifier 3 and directional coupler 4,
Other circuit structures are identical with upper one embodiment.To the connection of each component in circuit and function in last embodiment
Through having made detailed explanation, repeated no more secondary.Increase a switch in circuit, can more intelligently control opening for circuit
Open or close.
Optionally, the processor 1 is additionally operable to send control instruction to the transceiver 2, and the transceiver 2 is used for basis
The control instruction exports the input signal to the power amplifier 3, and the control instruction is used to determine the input letter
Number power.
In present embodiment, processor 1 determines the power of input signal by above-mentioned control instruction.
Optionally, the processor 1 is additionally operable to record the power of the input signal to preset discrete values, and from default
Obtained in mapping table has the performance number of corresponding relation with the default discrete values, by the performance number be defined as with it is described defeated
Enter the corresponding performance number of performance number of signal.
In present embodiment, above-mentioned default discrete values can be any one value in 1 to 1024 or 1 to
Any one value in 2048, in addition can also be some values between some scope pre-set etc..In order to very
The good above-mentioned corresponding relation of understanding, for example：The power for the input signal that default discrete values 20 are recorded is 200 watts, at default pair
Answer obtained in relation table with 20 have corresponding relation performance numbers be 400 watts, then 400 watts be determined as be with input signal
200 watts of corresponding performance numbers；Or the power of the input signal of the default record of discrete values 30 is 250 watts, is closed in default correspondence
It is that obtain in table is 600 watts with 30 performance numbers for having corresponding relation, then it is 250 watts that 600 watts, which are determined as with input signal,
Corresponding performance number.Thus can be using the corresponding performance number of input signal power value as reference data, in antenna mismatch
The power power corresponding with input signal power value for measuring positive coupled signal is made comparisons, and judges whether mismatch to be adjusted
It is whole.For in theory, when antenna mismatch, the Insertion Loss of switch 7, the coefficient of coup parameter of directional coupler 4 hardly becomes, but
It is that obvious change can occur for the load of power amplifier 3, so that cause the gain of power amplifier 3 to change, when
When inputting identical input power, amplified signal is had than larger change, so that positive coupled power can also change.
Optionally, the processor 1 is additionally operable to obtain at least two parameter presets of the antenna tuner 5；Make respectively
The antenna tuner 5 is carried out with each parameter preset it is pre-configured, calculate under conditions of each parameter preset, it is described just
To the difference of the performance number and the predetermined power value of coupled signal；Minimal difference is determined in all differences obtained from calculating,
And the corresponding target component of the minimal difference is determined, the target component is a ginseng at least two parameter preset
Number；The antenna tuner 5 is configured using the target component.
In present embodiment, processor 1 can send a signal, Ran Houjie in antenna mismatch to antenna tuner 5
Receive at least two parameter presets that antenna tuner 5 is sent；Or can also be that antenna tuner 5 is periodically sent to processor 1
At least two parameter presets, enable processor 1 to get the parameter preset of antenna tuner 5.Assuming that there is two parameter presets
10 and 11, under parameter preset 10, the performance number of positive coupled signal is 40 watts with the difference of predetermined power value；In parameter preset
Under 11, the performance number of positive coupled signal is 60 watts with the difference of predetermined power value；40 watts are less than 60 watts, then parameter preset 10
Just it is target component, antenna tuner 5 is configured using target component 10.Certainly antenna tuner can also be obtained here
All parameter presets in 5, then determine target component in all parameter presets, this mode is also possible.
Optionally, the processor 1 is used for the performance number and predetermined power value for regularly calculating the positive coupled signal
Difference.
In present embodiment, processor 1 regularly calculates the performance number of the positive coupled signal and the difference of predetermined power value
Value, it is possible to which timing detects the situation of antenna match, can be automatically adjusted in antenna mismatch, make mobile terminal more intelligence
Energy.
The embodiment of the present invention, adds a switch, for controlling electricity between power amplifier 3 and directional coupler 4
The closure on road, enables the control of circuit to add intelligence.As long as and the power of the positive coupled signal of circuit detection can just lose to antenna
The circuit matched somebody with somebody is tuned, without right after the positive coupled power and reverse coupled power in detection antenna tuning circuit
It can just be adjusted afterwards, make the process of regulation simpler.
The embodiment of the present invention also provides a kind of mobile terminal, and the mobile terminal includes any one in the embodiment of the present invention implement
The antenna tuning circuit of mode.
Referring to Fig. 3, Fig. 3 is a kind of flow chart of antenna tuning method provided in an embodiment of the present invention, applied to including upper
The mobile terminal of antenna tuning circuit is stated, as shown in figure 3, comprising the following steps：
Step 301, transceiver to the antenna tuning circuit of the control antenna tuning circuit power amplifier it is defeated
Go out input signal.
Step 302, the performance number for receiving the positive coupled signal that the transceiver is transmitted, wherein, the positive coupling letter
Number for the antenna tuning circuit directional coupler to amplified signal carry out couple obtained signal, the amplified signal is institute
State after power amplifier is amplified to the input signal, export to the signal of the directional coupler.
The difference of step 303, the performance number for calculating the positive coupled signal and predetermined power value, if the difference is more than
Predetermined threshold value, then control antenna tuner carry out antenna tuning, wherein, the predetermined power value be prestore with it is described defeated
Enter the corresponding performance number of performance number of signal.
In the embodiment of the present invention, input signal is exported to power amplifier, input signal is amplified by power amplifier,
Signal is amplified, directional coupler is coupled to amplified signal, obtains positive coupled signal, processor can just pass through meter
Calculate the positive power of coupled signal and the difference of predetermined power judge antenna whether mismatch, day can be controlled in antenna mismatch
Line tuner carries out antenna tuning.
Optionally, it is described to control the transceiver of the antenna tuning circuit to the power amplifier of the antenna tuning circuit
The step of exporting input signal, including：
Control instruction is sent to the transceiver, to control the transceiver of the antenna tuning circuit to the antenna tuning
The power amplifier output input signal of circuit, and power of the control instruction for determining the input signal.
Optionally, the predetermined power value is to preset the power for having corresponding relation in mapping table with default discrete values
Value, the default discrete values represent the power of the input signal.
Optionally, the step of control antenna tuner carries out antenna tuning, including：
Obtain at least two parameter presets of the antenna tuner；
It is pre-configured to antenna tuner progress using each parameter preset respectively, calculate in each parameter preset
Under the conditions of, the difference of the performance number of the positive coupled signal and the predetermined power value；
Determine minimal difference from obtained all differences are calculated, and determine the corresponding target component of the minimal difference,
The target component is a parameter at least two parameter preset；
The antenna tuner is configured using the target component.
Optionally, the step of difference of the performance number for calculating the positive coupled signal and predetermined power value, including：
Timing calculates the performance number of the positive coupled signal and the difference of predetermined power value.
It should be noted that this method can apply to include the mobile terminal of above-mentioned antenna tuning circuit, its is specific
Implementation process can use the antenna tuning circuit provided in above-described embodiment to be realized, not repeat herein.
The embodiment of the present invention, control transceiver exports input signal to power amplifier；Receive the transceiver transmission just
To the performance number of coupled signal；The performance number of the positive coupled signal and the difference of predetermined power value are calculated, if the difference
More than predetermined threshold value, then control antenna tuner to carry out antenna tuning, wherein, the predetermined power value be prestore with institute
State the corresponding performance number of performance number of input signal.So, it is only necessary to which the power of the positive coupled signal of detection is with regard to that can carry out antenna
Tuning, makes the process of regulation simpler.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, others can be passed through
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of device or unit by some interfaces
Connect, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can be with store program codes
Medium.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (12)
1. a kind of antenna tuning circuit, it is characterised in that including：
Processor, transceiver, power amplifier, directional coupler, antenna tuner and antenna；
The first end of the processor is connected with the first end of the transceiver, and the second end and the power of the transceiver are put
The first end connection of big device, the second end of the power amplifier is connected with the first end of the directional coupler, the orientation
Second end of coupler is connected with the first end of the antenna tuner, and the second end and the antenna of the antenna tuner connect
Connect, the 3rd end of the antenna tuner is connected with the second end of the processor, and the 3rd end of the transceiver with it is described
The three-terminal link of directional coupler；
Wherein, the transceiver is used to export input signal to the power amplifier, and the power amplifier is used for described
Input signal is amplified, and exports the amplified signal after the input signal is exaggerated to the directional coupler；It is described fixed
It is used to couple the amplified signal to coupler, and transmits what the amplified signal was coupled to the transceiver
Positive coupled signal；The transceiver is additionally operable to transmit the performance number of the positive coupled signal to the processor；The place
Reason device is used to calculate the performance number of the positive coupled signal and the difference of predetermined power value, if the difference is more than default threshold
Value, then control the antenna tuner to carry out antenna tuning, wherein, the predetermined power value processor is prestored
Performance number corresponding with the performance number of the input signal.
2. antenna tuning circuit according to claim 1, it is characterised in that the second end of the power amplifier is by opening
Pass is connected with the first end of the directional coupler, the closure switched for controlling circuit.
3. antenna tuning circuit according to claim 1, it is characterised in that the processor is additionally operable to the transceiver
Control instruction is sent, the transceiver is used to export the input signal to the power amplifier according to the control instruction,
The control instruction is used for the power for determining the input signal.
4. antenna tuning circuit according to claim 3, it is characterised in that the processor is additionally operable to preset dispersion number
Value records the power of the input signal, and acquisition has corresponding relation with the default discrete values from default mapping table
Performance number, the performance number is defined as performance number corresponding with the performance number of the input signal.
5. antenna tuning circuit according to any one of claim 1 to 4, it is characterised in that the processor is additionally operable to
Obtain at least two parameter presets of the antenna tuner；The antenna tuner is entered using each parameter preset respectively
Row is pre-configured, calculates under conditions of each parameter preset, the performance number of the positive coupled signal and the predetermined power value
Difference；Minimal difference is determined in all differences obtained from calculating, and determines the corresponding target component of the minimal difference, institute
It is a parameter at least two parameter preset to state target component；Using the target component to the antenna tuner
Configured.
6. antenna tuning circuit according to claim 1, it is characterised in that the processor be used to regularly calculating it is described just
To the difference of the performance number and predetermined power value of coupled signal.
7. a kind of mobile terminal, it is characterised in that including the antenna tuning circuit any one of claim 1 to 6.
8. a kind of antenna tuning method, applied to including the movement of the antenna tuning circuit any one of claim 1 to 6
Terminal, it is characterised in that including：
The transceiver of the antenna tuning circuit is controlled to export input signal to the power amplifier of the antenna tuning circuit；
The performance number of the positive coupled signal of the transceiver transmission is received, wherein, the positive coupled signal is the antenna
The directional coupler of tuning circuit carries out coupling obtained signal to amplified signal, and the amplified signal is the power amplifier
After being amplified to the input signal, export to the signal of the directional coupler；
The performance number of the positive coupled signal and the difference of predetermined power value are calculated, if the difference is more than predetermined threshold value,
Antenna tuner is controlled to carry out antenna tuning, wherein, the predetermined power value is the work(with the input signal prestored
Rate is worth corresponding performance number.
9. method according to claim 8, it is characterised in that the transceiver of the control antenna tuning circuit is to institute
The step of stating the power amplifier output input signal of antenna tuning circuit, including：
Control instruction is sent to the transceiver, to control the transceiver of the antenna tuning circuit to the antenna tuning circuit
Power amplifier output input signal, and the control instruction is used to determine the power of the input signal.
10. method according to claim 9, it is characterised in that the predetermined power value be in default mapping table with
Default discrete values have the performance number of corresponding relation, and the default discrete values represent the power of the input signal.
11. the method according to any one of claim 8 to 10, it is characterised in that the control antenna tuner is carried out
The step of antenna tuning, including：
Obtain at least two parameter presets of the antenna tuner；
Carry out pre-configured, condition of the calculating in each parameter preset to the antenna tuner using each parameter preset respectively
Under, the difference of the performance number of the positive coupled signal and the predetermined power value；
Minimal difference is determined in all differences obtained from calculating, and determines the corresponding target component of the minimal difference, it is described
Target component is a parameter at least two parameter preset；
The antenna tuner is configured using the target component.
12. method according to claim 8, it is characterised in that the performance number of the calculating positive coupled signal with
The step of difference of predetermined power value, including：
Timing calculates the performance number of the positive coupled signal and the difference of predetermined power value.
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| CN107450067A (en) * | 2017-07-28 | 2017-12-08 | 维沃移动通信有限公司 | A kind of distance detection device, method and mobile terminal |
| CN109194342A (en) * | 2018-08-06 | 2019-01-11 | Oppo广东移动通信有限公司 | A kind of tuning completely inegrated circuit and tuning methods, terminal and storage medium |
| CN110022598A (en) * | 2018-01-08 | 2019-07-16 | 深圳市中兴微电子技术有限公司 | A kind of Poewr control method, terminal and computer readable storage medium |
| CN112134627A (en) * | 2020-09-23 | 2020-12-25 | 努比亚技术有限公司 | Antenna tuning method, device and computer readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107450067A (en) * | 2017-07-28 | 2017-12-08 | 维沃移动通信有限公司 | A kind of distance detection device, method and mobile terminal |
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| CN110022598A (en) * | 2018-01-08 | 2019-07-16 | 深圳市中兴微电子技术有限公司 | A kind of Poewr control method, terminal and computer readable storage medium |
| CN110022598B (en) * | 2018-01-08 | 2023-08-08 | 深圳市中兴微电子技术有限公司 | Power control method, terminal and computer readable storage medium |
| CN109194342A (en) * | 2018-08-06 | 2019-01-11 | Oppo广东移动通信有限公司 | A kind of tuning completely inegrated circuit and tuning methods, terminal and storage medium |
| CN112134627A (en) * | 2020-09-23 | 2020-12-25 | 努比亚技术有限公司 | Antenna tuning method, device and computer readable storage medium |
| CN112134627B (en) * | 2020-09-23 | 2023-04-14 | 广东天诺通讯科技有限公司 | Antenna tuning method, device and computer readable storage medium |
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|---|---|
| CN106972870B (en) | 2019-03-05 |
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