CN109861696A - A kind of antenna adjustment method and antenna system terminal - Google Patents
A kind of antenna adjustment method and antenna system terminal Download PDFInfo
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- CN109861696A CN109861696A CN201811573975.8A CN201811573975A CN109861696A CN 109861696 A CN109861696 A CN 109861696A CN 201811573975 A CN201811573975 A CN 201811573975A CN 109861696 A CN109861696 A CN 109861696A
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Abstract
Application provides a kind of antenna adjustment method and antenna system terminal, and the antenna adjustment method is applied to antenna system terminal, and the antenna system terminal includes diversity antenna, positioning antenna；The antenna adjustment method includes: the messaging parameter for obtaining the antenna system terminal, and the messaging parameter includes at least impedance value, low-frequency resonant point, intermediate frequency resonance point；Regulate and control the low-frequency resonant point of the antenna system terminal, to reduce the bandwidth of the low-frequency resonant point；Regulate and control the impedance value of the low-frequency resonant point of the antenna system terminal, to reduce the frequency point efficiency of the positioning antenna；Wherein, by controlling the impedance value of the antenna system terminal, regulate and control the low-frequency resonant point bandwidth, reduce the second harmonic energy that communication channel generates；The interference caused by positioning system of second harmonic energy can be reduced by method of controlling antenna, improves the sensitivity of positioning system, improves the accuracy of positioning system.
Description
Technical field
The present invention relates to the technical fields of method of controlling antenna, in particular to a kind of antenna adjustment method and antenna
System terminal.
Background technique
GPS (Global Positioning System, global positioning system) not only rises in the military field of early stage
Great function, in reality technology field, GPS technology has been widely used in communication navigation, landform is investigated, surveyed and drawn etc..
In the prior art, GPS (Global Positioning System, global positioning system) is applied to user hand
Machine and other mobile terminals, and mobile phone GPS navigation also becomes the mainstreams such as self-driving navigation, personal trip；But the sensitivity of GPS
It is relatively high, if having similar interference signal in GPS band, it will the performance for interfering with GPS causes accuracy to decline；Therefore,
The positional accuracy of cellphone GPS technology will visual influence user experience.
AGPS (Assisted Global Positioning System, assisted global positioning system) is one kind of GPS
The method of operation, it mainly utilizes the signal resource of mobile phone base station, cooperates traditional GPS satellite location technology, make GPS positioning
Speed is faster；However, AGPS location technology mainly passes through the communication in conjunction with the main radio frequency of mobile terminal, LTE B13/14 will be related to
Access, the second harmonic of the B13/14 will fall in GPS frequency, interfere to GPS performance, and GPS sensitivity is caused to decline
Subtract, position position inaccurate even can not.
Therefore, it is mentioned by AGPS (Assisted Global Positioning System, assisted global positioning system)
The positioning accurate parasexuality of high GPS needs to control the second harmonic energy that the B13/14 of antenna system is generated, avoids second harmonic energy
GPS frequency is interfered, reduces AGPS sensitivity decaying, this is the developing direction of current mobile terminal AGPS.
Summary of the invention
In order to solve the above-mentioned technical problem, the purpose of the application is, provides a kind of antenna adjustment method and antenna system
Terminal controls second harmonic energy by adjusting inside antenna system, reduces second harmonic and interferes caused by GPS, improves
The sensitivity of AGPS improves the accuracy of GPS.
It the purpose of the application and solves its technical problem and adopts the following technical solutions to realize.It is proposed according to the application
A kind of antenna adjustment method, the antenna adjustment method are applied to antenna system terminal, and the antenna system terminal includes diversity
Antenna, positioning antenna；The antenna adjustment method includes: the messaging parameter for obtaining the antenna system terminal, the communication ginseng
Number includes at least impedance value, low-frequency resonant point, intermediate frequency resonance point and operating frequency of antenna；Regulate and control the antenna system terminal
Low-frequency resonant point, to reduce the bandwidth of the low-frequency resonant point；Regulate and control the impedance of the low-frequency resonant point of the antenna system terminal
Value, to reduce the frequency point efficiency of the positioning antenna；Wherein, by controlling the impedance value of the antenna system terminal, regulate and control institute
Low-frequency resonant point bandwidth is stated, the second harmonic energy that communication channel generates is reduced.
In the embodiment of the application, the antenna system terminal further includes main collection antenna.
In the embodiment of the application, the method for controlling antenna is further comprising the steps of:
S101: the test main collection antenna is at a distance from the GPS antenna, as first distance；
S102: the diversity antenna is tested at a distance from the GPS antenna, as second distance；
S103: the size of the first distance and second distance；
S104: auxiliary antenna of the close antenna of selected distance as GPS.
In the embodiment of the application, the diversity antenna is less than the main collection antenna at a distance from the GPS antenna
At a distance from the GPS antenna.
In the embodiment of the application, the frequency point efficiency that the diversity antenna corresponds to GPS, and then assistant GPS day are controlled
Line positioning.
In the embodiment of the application, the frequency point of the positioning antenna is between -2 to -3dB.
In the embodiment of the application, by adjusting part intermediate frequency resonance efficiency, to reduce the low-frequency resonant point
Bandwidth.
In the embodiment of the application, by adjusting the connection type regulation impedance value inductively or capacitively.
In the embodiment of the application, adjusting circuit impedance, controlling the positioning day in a manner of series capacitance
The frequency point efficiency of line.
In the embodiment of the application, adjusting circuit impedance, controlling the positioning day in a manner of shunt capacitance
The frequency point efficiency of line.
In the embodiment of the application, adjusting circuit impedance, controlling the positioning day in a manner of series inductance
The frequency point efficiency of line.
In the embodiment of the application, adjusting circuit impedance, controlling the positioning day in a manner of shunt inductance
The frequency point efficiency of line.
The another object of the application is to provide a kind of antenna system terminal, comprising: positioning antenna, for described mobile whole
The positioning work at end；Main collection antenna and diversity antenna, the positioning work for the mobile terminal；Matrix switch, the matrix
Switch is that double-input double-output switchs, between the main collection antenna and diversity antenna switching tremendously low frequency and high frequency；Calculate mould
Block, for obtaining and analyzing the messaging parameter of the diversity antenna；Control circuit module, according to computing module acquisition
The messaging parameter of diversity antenna, the serial or parallel connection of capacitor and inductance, adjusts the impedance value in the circuit in control circuit, with
The corresponding positioning antenna frequency point efficiency of the diversity antenna is controlled, to regulate and control the corresponding low-frequency resonant of the diversity antenna
Point reduces the bandwidth of the low-frequency resonant point, reduces the second harmonic energy that communication channel generates.
The application provides a kind of antenna adjustment method and antenna system terminal, is dropped by adjusting the impedance value of diversity antenna
The frequency of low antenna, and then the second harmonic energy of antenna system terminal is reduced, improve the sensitivity of GPS, improves GPS antenna
Performance.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the present application embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the present application, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is exemplary antenna-switching device figure；
Fig. 2 is that the antenna adjustment method in one embodiment of the application describes figure；
Fig. 3 is the Smith figure of the antenna loop loss in one embodiment of the application；
Fig. 4 is the antenna system terminal structure figure in one embodiment of the application.
Specific embodiment
The explanation of following embodiment is to can be used to the particular implementation of implementation to illustrate the application with reference to additional schema
Example.The direction term that the application is previously mentioned, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outside", " side "
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the application, rather than to
Limit the application.
Attached drawing and explanation are considered inherently illustrative, rather than restrictive.The similar list of structure in the figure
Member is to be given the same reference numerals.In addition, in order to understand and be convenient for description, the size and thickness of each component shown in the accompanying drawings are
It is arbitrarily shown, but the application is without being limited thereto.
In the accompanying drawings, for clarity, the thickness in layer, film, panel, region etc. is exaggerated.In the accompanying drawings, in order to understand
With convenient for description, the thickness of some layer and region is exaggerated.It will be appreciated that ought such as layer, film, region or substrate component quilt
Referred to as " " another component "upper" when, the component can be directly on another component, or there may also be middle groups
Part.
In addition, in the description, unless explicitly described as opposite, otherwise word " comprising " will be understood as meaning to wrap
The component is included, but is not excluded for any other component.In addition, in the description, " above " means to be located at target group
Part either above or below, and be not intended to must be positioned on the top based on gravity direction.
Further to illustrate that the application is the technical means and efficacy reaching predetermined goal of the invention and being taken, below in conjunction with
Attached drawing and specific embodiment, to a kind of pixel framework and display device proposed according to the present application, specific implementation
Mode, structure, feature and its effect, detailed description is as follows.
Fig. 1 is exemplary antenna-switching device figure, as shown in Figure 1, the antenna-switching device 100 includes: cubicle switchboard
Battle array 101, the switch matrix includes first switch 102 and second switch 103；One end of the first switch 102 is for connecting
One in diversity antenna 104 and main collection antenna 105, the other end of the first switch 102 is dividing link 106 and primary link
Switch between 107, one end of the second switch 103 connects another in diversity antenna 104 and main collection antenna 105, described
The other end of second switch 103 switches dividing between link 106 and primary link 107；Control circuit module, the control circuit mould
Block is by controlling the first switch 102, the second switch 103 establishes the main collection antenna 105 to primary link 107 respectively
Access and diversity antenna 104 are to the access for dividing link 106；Damage is reduced by reducing the signal wire quantity that diversity signal passes through
Consumption, improves the performance of antenna for mobile phone, improves the sensitivity of antenna.
Fig. 2 is that the antenna adjustment method in one embodiment of the application describes figure, as shown in Figure 2；One is proposed according to the application
Kind antenna adjustment method, the antenna adjustment method are applied to antenna system terminal, and the antenna system terminal includes diversity day
Line, positioning antenna；The antenna adjustment method includes: S201: obtaining the messaging parameter of the antenna system terminal, the communication
Parameter includes at least impedance value, low-frequency resonant point, intermediate frequency resonance point and operating frequency of antenna；S202: regulate and control the aerial system
The impedance value of the low-frequency resonant point for terminal of uniting, to reduce the frequency point efficiency of the positioning antenna；S203: regulate and control the antenna system
The low-frequency resonant point of terminal, to reduce the bandwidth of the low-frequency resonant point；Wherein, pass through the resistance of the control antenna system terminal
Anti- value regulates and controls the low-frequency resonant point bandwidth, reduces the second harmonic energy that communication channel generates；Embodiments herein passes through
Regulate and control the impedance value of diversity antenna, and then control corresponding GPS frequency point efficiency, the bandwidth of regulated low frequency resonance point reduces aerial system
B13/14 channel of uniting generates second harmonic, to reduce the second harmonic total amount of interference GPS antenna, improves the sensitive of GPS antenna
Degree.
In the embodiment of the application, the antenna system terminal further includes main collection antenna.
In the embodiment of the application, the method for controlling antenna is further comprising the steps of:
S101: the test main collection antenna is at a distance from the GPS antenna, as first distance；
S102: the diversity antenna is tested at a distance from the GPS antenna, as second distance；
S103: the size of the first distance and second distance；
S104: auxiliary antenna of the close antenna of selected distance as GPS.
In the embodiment of the application, the diversity antenna is less than the main collection antenna at a distance from the GPS antenna
At a distance from the GPS antenna, therefore, select the diversity antenna as the auxiliary antenna of the GPS antenna, but be not limited to
This, the radio-frequency antenna of other neighbouring GPS antennas of antenna system terminal also includes in the present embodiment.
In the embodiment of the application, the diversity antenna and the GPS antenna constitute AGPS (Assisted
Global Positioning System, assisted global positioning system).
In the embodiment of the application, the impedance value of the diversity antenna is regulated and controled, and adjusts the diversity antenna
Working frequency, when the resistance value is bigger, the working frequency of the diversity antenna is lower, when the impedance value is smaller, the diversity
The working frequency of antenna is higher.
In the embodiment of the application, regulation impedance value is as follows with the principle for adjusting antenna frequencies: RL (dB)=- 20lg
│Γ│；Wherein, " Γ " is the Amplitude Ration of voltage reflection coefficient characterization incidence wave and back wave, normally, the threshold range of " Γ "
For (0,1)；As reflection coefficient Γ=0, RL (dB)=- ∞, then the return loss of its antenna is infinitely small, indicates the video letter of antenna
Number completely by medium, it is not lost；As Γ=1, RL (dB)=0dB, then its return loss is bigger, indicates that radiofrequency signal is complete
Portion all and reflection and lose；In the present embodiment, when the value of RL is smaller, then show that the antenna frequencies of this frequency point are higher,
Conversely, the value as RL is bigger, then show that the antenna frequencies of this frequency point are lower.
In the embodiment of the application, the frequency point efficiency that the diversity antenna corresponds to GPS, and then assistant GPS day are controlled
Line positioning, improves the accuracy of location technology.
In the embodiment of the application, the frequency point efficiency of the GPS is between -2 to -3dB.
In the embodiment of the application, by adjusting part intermediate frequency resonance efficiency, to reduce the low-frequency resonant point
Bandwidth；In the present embodiment, by combining the frequency point efficiency of GPS, the working frequency of the diversity antenna is adjusted, described in diminution
When the low-frequency resonant point bandwidth of diversity antenna, the bandwidth of the part IF frequency of the diversity antenna can also reduce, but meet institute
State the operating frequency range of diversity antenna.
Fig. 3 is the Smith figure of the antenna loop loss in one embodiment of the application, can in the embodiment of the application
Regulated and controled using impedance value of the Smith rule to antenna system, the Smith rule is the return loss according to antenna circuit
Figure adjusts the capacitance and inductance value of the antenna system, when the corresponding return loss image path of antenna is from the center Smith
Point 300 is closer, then the working efficiency of antenna is higher, conversely, remoter from Smith central point 300, then the working efficiency of antenna is got over
It is low.
In the embodiment of the application, by adjusting the connection type regulation impedance value inductively or capacitively.
In the embodiment of the application, as shown in figure 3, the corresponding frequency point 304 and 305 of antenna loop loss image path
Positioned at the lower right of Smith central point 300, rule is debugged according to Smith, when the corresponding frequency point of return loss image path in
The lower right region of Smith central point 300, adjusting circuit impedance, controlling the positioning antenna in a manner of series capacitance
Frequency point efficiency.
In the embodiment of the application, as shown in figure 3, the corresponding frequency point 307 and 308 of antenna loop loss image path
Positioned at the lower left of Smith central point 300, rule is debugged according to Smith, when the corresponding frequency point of return loss image path in
The bottom-left quadrant of Smith central point 300, adjusting circuit impedance, controlling the positioning antenna in a manner of shunt capacitance
Frequency point efficiency.
In the embodiment of the application, as shown in figure 3, the corresponding frequency point 301 of antenna loop loss image path is located at
Rule is debugged according to Smith, when the corresponding frequency point of return loss image path is in Smith in the upper right side of Smith central point 300
The upper right side region of central point 300 controls the frequency of the positioning antenna adjusting circuit impedance in a manner of series inductance
Point efficiency.
In the embodiment of the application, as shown in figure 3, the corresponding frequency point 303 of antenna loop loss image path is located at
Rule is debugged according to Smith, when the corresponding frequency point of return loss image path is in Smith in the upper left side of Smith central point 300
The upper left side region of central point 300 controls the frequency of the positioning antenna adjusting circuit impedance in a manner of shunt inductance
Point efficiency.
Fig. 4 is the antenna system terminal structure figure in one embodiment of the application, and the another object of the application is to provide one
Kind antenna system terminal, comprising: positioning antenna 403, the positioning work for the mobile terminal；Main collection antenna 401 and diversity
Antenna 402, the positioning work for the mobile terminal；Matrix switch 406, the matrix switch are double-input double-output switch, are used
Between the main collection antenna and diversity antenna switching tremendously low frequency and high frequency；Computing module 404, for obtaining and analyzing institute
State the messaging parameter of diversity antenna；Control circuit module 405 is joined according to the communication that the computing module obtains the diversity antenna
It counts, the serial or parallel connection of capacitor and inductance, adjusts the impedance value in the circuit, to control the diversity antenna in control circuit
It is humorous to reduce the low frequency to regulate and control the corresponding low-frequency resonant point of the diversity antenna for the corresponding positioning antenna frequency point efficiency
The bandwidth of vibration point reduces the second harmonic energy that communication channel generates.
The application provides a kind of antenna adjustment method and antenna system terminal, according to the return loss figure of antenna, uses
Smith rule is by adjusting the impedance value of diversity antenna, to reduce the frequency point frequency of antenna, reduces the band of low-frequency resonant point
Width reduces the second harmonic energy of antenna system terminal, improves the sensitivity of GPS, improve the performance of GPS antenna.
" in some embodiments " and " in various embodiments " terms are used repeatedly etc..The term is not usually
Refer to identical embodiment；But it may also mean that identical embodiment.The words such as "comprising", " having " and " comprising " are synonymous
Word, unless its context meaning shows other meanings.
The above is only the embodiment of the present application, not makes any form of restriction to the present patent application, though
Right the application is disclosed above with specific embodiment, however is not limited to the application, any technology for being familiar with this profession
Personnel are not departing within the scope of technical scheme, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, but all contents without departing from technical scheme, the technology according to the application are real
Matter any simple modification, equivalent change and modification to the above embodiments, still fall within the present patent application technical solution
In range.
Claims (10)
1. a kind of antenna adjustment method, is applied to antenna system terminal, the antenna system terminal includes: diversity antenna, positioning
Antenna, which is characterized in that the antenna adjustment method includes:
Obtain and analyze the messaging parameter of the diversity antenna, the messaging parameter include at least impedance value, low-frequency resonant point, in
Frequency resonance point；
Regulate and control the low-frequency resonant point of the diversity antenna, to reduce the bandwidth of the low-frequency resonant point；
Regulate and control the impedance value of the low-frequency resonant point of the diversity antenna, to reduce the frequency point efficiency of the positioning antenna；
Wherein, by controlling the impedance value of the diversity antenna, regulate and control the low-frequency resonant point bandwidth, reduce communication channel and generate
Second harmonic energy.
2. a kind of method of controlling antenna as described in claim 1, which is characterized in that the antenna system terminal further includes main collection day
Line.
3. a kind of method of controlling antenna as described in claim 1, which is characterized in that the frequency point of the positioning antenna is -2 to -3dB
Between.
4. a kind of method of controlling antenna as described in claim 1, which is characterized in that corresponding by adjusting part intermediate frequency resonance point
Efficiency, to reduce the bandwidth of the low-frequency resonant point.
5. a kind of method of controlling antenna as described in claim 1, which is characterized in that by adjusting connection type inductively or capacitively
Regulate and control the impedance value.
6. a kind of method of controlling antenna as claimed in claim 5, which is characterized in that adjusting electricity in a manner of series capacitance
Roadlock is anti-, controls the frequency point efficiency of the positioning antenna.
7. a kind of method of controlling antenna as claimed in claim 5, which is characterized in that adjusting electricity in a manner of shunt capacitance
Roadlock is anti-, controls the frequency point efficiency of the positioning antenna.
8. a kind of method of controlling antenna as claimed in claim 5, which is characterized in that adjusting electricity in a manner of series inductance
Roadlock is anti-, controls the frequency point efficiency of the positioning antenna.
9. a kind of method of controlling antenna as claimed in claim 5, which is characterized in that adjusting electricity in a manner of shunt inductance
Roadlock is anti-, controls the frequency point efficiency of the positioning antenna.
10. a kind of antenna system terminal characterized by comprising
Position antenna, the positioning work for the mobile terminal；
Main collection antenna and diversity antenna, for sending and receiving information；
Matrix switch, the matrix switch are double-input double-output switch, are switched to for the main collection antenna and the diversity antenna
Between low frequency and high frequency；
Computing module, for obtaining and analyzing the messaging parameter of the diversity antenna；
Control circuit module obtains the messaging parameter of the diversity antenna according to the computing module, in control circuit capacitor and
The serial or parallel connection of inductance adjusts the impedance value in the circuit, to control the corresponding positioning antenna of the diversity antenna
Frequency point efficiency regulates and controls the corresponding low-frequency resonant point of the diversity antenna, reduces the bandwidth of the low-frequency resonant point, reduces communication letter
The second harmonic energy that road generates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811573975.8A CN109861696A (en) | 2018-12-21 | 2018-12-21 | A kind of antenna adjustment method and antenna system terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811573975.8A CN109861696A (en) | 2018-12-21 | 2018-12-21 | A kind of antenna adjustment method and antenna system terminal |
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| CN109861696A true CN109861696A (en) | 2019-06-07 |
Family
ID=66891899
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| CN201811573975.8A Pending CN109861696A (en) | 2018-12-21 | 2018-12-21 | A kind of antenna adjustment method and antenna system terminal |
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| CN110444893A (en) * | 2019-08-16 | 2019-11-12 | 歌尔科技有限公司 | A kind of unipole antenna bandwidth adjusting method and system |
| CN111010518A (en) * | 2019-11-28 | 2020-04-14 | 深圳市安拓浦科技有限公司 | Antenna adjusting method and device |
| CN111211419A (en) * | 2020-03-20 | 2020-05-29 | 歌尔科技有限公司 | Design method, device and system of dual-resonance antenna |
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Application publication date: 20190607 |