CN108199145A - A kind of beamwidth of antenna adjusting method and electronic equipment - Google Patents
A kind of beamwidth of antenna adjusting method and electronic equipment Download PDFInfo
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- CN108199145A CN108199145A CN201711465137.4A CN201711465137A CN108199145A CN 108199145 A CN108199145 A CN 108199145A CN 201711465137 A CN201711465137 A CN 201711465137A CN 108199145 A CN108199145 A CN 108199145A
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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
- H01Q5/10—Resonant antennas
-
- 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
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
-
- 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
- H01Q5/30—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
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Aerials (AREA)
Abstract
The present invention provides a kind of beamwidth of antenna adjusting method and electronic equipment, wherein the method includes：Antenna Operation is controlled in the first frequency range with its size fit；Receive frequency modulation instruction；When the frequency modulation instructs corresponding resonant frequency in the second frequency range, the resonant frequency that corresponding match circuit makes the Antenna Operation in second frequency range is selected and turned on；Wherein, the upper limiting frequency of first frequency range is more than the upper limiting frequency of second frequency range, the lower frequency limit of first frequency range is more than the lower frequency limit of second frequency range, and the resonant frequency for the antenna being operated in first frequency range is more than the resonant frequency for being operated in antenna in second frequency range.The present invention is capable of the bandwidth of simply and easily extended antenna.
Description
Technical field
The present embodiments relate to electronic device field, more particularly to a kind of beamwidth of antenna adjusting method and electronic equipment.
Background technology
Highly it is lightening be the electronic equipments such as existing tablet, laptop development trend, the size of antenna is also
It is required that it is less and less, and since the bandwidth of low-frequency range needs very big antenna size (can be obtained according to antenna theory λ=c/f), this
Sample is difficult to realize the antenna requirement of small size wide bandwidth simultaneously.In the prior art, conventional solution is to pass through adjustable electric
Hold and change low-frequency resonant circuit, but this method must debug low-frequency impedance to perceptual region, user experience is bad.
Invention content
An embodiment of the present invention provides one kind, no matter low-frequency impedance can realize antenna in perceptual region or capacitive region
Frequency modulation and frequency modulation beamwidth of antenna adjusting method with high accuracy and electronic equipment.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides following technical solutions：
A kind of beamwidth of antenna adjusting method, including：
Antenna Operation is controlled in the first frequency range with its size fit；
Receive frequency modulation instruction；
When the frequency modulation instructs corresponding resonant frequency in the second frequency range, selecting and turning on corresponding match circuit makes institute
State the resonant frequency of the Antenna Operation in second frequency range；
Wherein, the upper limiting frequency of first frequency range is more than the upper limiting frequency of second frequency range, first frequency range
Lower frequency limit is more than the lower frequency limit of second frequency range, and the resonant frequency for the antenna being operated in first frequency range is more than work
Make the resonant frequency of the antenna in second frequency range.
In a preferred embodiment, wherein described select and turn on corresponding match circuit and make the Antenna Operation in institute
The resonant frequency for stating the second frequency range includes：
Select and turn on corresponding match circuit；
The impedance value of the match circuit is adjusted, antenna is made to reach the resonant frequency of second frequency range.
In a preferred embodiment, it is described to select and turn on corresponding match circuit and include：
Determine that the antenna impedance corresponding to second frequency range is located at the area information of smith circle diagrams；
It is determined based on the area information and connects corresponding match circuit branch.
In a preferred embodiment, the impedance value of the match circuit is adjusted, antenna is made to reach the resonant frequency and is included：
The impedance of the variable capacitance and/or variable inductance in the determining match circuit is adjusted, makes the Antenna Operation
In the resonant frequency point of second frequency range.
In a preferred embodiment, the method further includes:
Using the mapping table of storage, the impedance of the variable capacitance and/or variable inductance is adjusted；Wherein, it is described right
Relation table is answered to include resonant frequency and the correspondence of the impedance of variable capacitance and/or variable inductance.
In a preferred embodiment, the frequency range of first frequency range is 824MHZ-960MHZ, second frequency range
Frequency range is 699MHZ-824MHZ.
The embodiment of the present invention additionally provides a kind of electronic equipment, including：
Antenna, the working frequency range of size fit are at least the first frequency range；
FM module is configured to receive frequency modulation instruction, and when the frequency modulation instructs corresponding resonant frequency in the second frequency
Duan Shi selects and turns on the resonance frequency point that corresponding match circuit makes the Antenna Operation in second frequency range；Wherein,
The frequency of first frequency range is more than the frequency of second frequency range；
Wherein, the upper limiting frequency of first frequency range is more than the upper limiting frequency of second frequency range, first frequency range
Lower frequency limit is more than the lower frequency limit of second frequency range, and the resonant frequency for the antenna being operated in first frequency range is more than work
Make the resonant frequency of the antenna in second frequency range.
In a preferred embodiment, the FM module is configured to adjust the impedance value of selected match circuit, makes day
Line reaches the resonant frequency of second frequency range.
In a preferred embodiment, the FM module is further configured to adjust the variable capacitance in the match circuit
And/or the impedance of variable inductance, make the resonant frequency for being operated in second frequency range of the antenna.
In a preferred embodiment, the match circuit includes the first match circuit branch, the second match circuit branch, the
Three match circuit branches and the 4th match circuit branch, wherein, the first match circuit branch includes the first variable inductance and the
One variable capacitance, the second matching branch include the second variable inductance and third variable inductance, and third matching branch can including second
Become capacitance and third variable capacitance, the 4th matching branch includes the 4th variable capacitance and the 4th variable inductance.
Compared with prior art, the advantageous effect of the embodiment of the present invention is：
The embodiment of the present invention can load match circuit on the feed point electricity point of antenna, and can be according to corresponding matching
The second frequency range below the first frequency range that the resonance point adjusting of antenna is adapted to by circuit to antenna size, so as to fulfill aerial band
Wide extension
Description of the drawings
Fig. 1 is a kind of principle flow chart of beamwidth of antenna adjusting method in the embodiment of the present invention；
Fig. 2 is the structure diagram of the match circuit in the embodiment of the present invention；
Fig. 3 is the structure diagram of the antenna Smith chart in the embodiment of the present invention；
Fig. 4 is the principle assumption diagram of a kind of electronic equipment in the embodiment of the present invention.
Specific embodiment
In the following, specific embodiments of the present invention are described in detail with reference to attached drawing, but not as limiting to the invention.
It should be understood that various modifications can be made to disclosed embodiments.Therefore, description above should not regard
To limit, and only as the example of embodiment.Those skilled in the art will expect within the scope and spirit of this
Other modifications.
The attached drawing being included in the description and forms part of the description shows embodiment of the disclosure, and with it is upper
What face provided is used to explain the disclosure together to the substantially description of the disclosure and the detailed description given below to embodiment
Principle.
It is of the invention by the description of the preferred form of the embodiment with reference to the accompanying drawings to being given as non-limiting examples
These and other characteristic will become apparent.
It is also understood that although invention has been described with reference to some specific examples, people in the art
Member realize with can determine the present invention many other equivalents, they have feature as claimed in claim and therefore all
In the protection domain limited whereby.
When read in conjunction with the accompanying drawings, in view of described further below, above and other aspect, the feature and advantage of the disclosure will become
It is more readily apparent.
The specific embodiment of the disclosure is described hereinafter with reference to attached drawing；It will be appreciated, however, that the disclosed embodiments are only
Various ways implementation can be used in the example of the disclosure.It is known and/or repeat function and structure be not described in detail to avoid
Unnecessary or extra details so that the disclosure is smudgy.Therefore, specific structural and functionality disclosed herein is thin
Section is not intended to restrictions, but as just the basis of claim and representative basis be used to instructing those skilled in the art with
Substantially any appropriate detailed construction diversely uses the disclosure.
This specification can be used phrase " in one embodiment ", " in another embodiment ", " in another embodiment
In " or " in other embodiments ", it can be referred to according to one or more of identical or different embodiment of the disclosure.
In the following, the embodiment of the present invention is described in detail with reference to attached drawing, an embodiment of the present invention provides a kind of beamwidth of antenna tune
Section method, wherein this method can load match circuit on the distributing point of antenna, and can be according to corresponding match circuit
The second frequency range below the first frequency range that the resonance point adjusting of antenna is adapted to antenna size, so as to fulfill the beamwidth of antenna
Extension.
As shown in Figure 1, the principle flow chart for a kind of beamwidth of antenna adjusting method in the embodiment of the present invention, wherein can be with
Including：
Antenna Operation is controlled in the first frequency range with its size fit；
Receive frequency modulation instruction；
When the frequency modulation instructs corresponding resonant frequency in the second frequency range, selecting and turning on corresponding match circuit makes institute
State the resonant frequency for being operated in second frequency range of antenna；
Wherein, the upper limiting frequency of first frequency range is more than the upper limiting frequency of second frequency range, first frequency range
Lower frequency limit is more than the lower frequency limit of second frequency range, and the resonant frequency for the antenna being operated in first frequency range is more than work
Make the resonant frequency of the antenna in second frequency range
In the embodiment of the present invention, the first frequency range and the second frequency range can be two frequency ranges for having different frequency, can also
It is the frequency range with part identical frequency.I.e. in one embodiment, the upper limiting frequency of the first frequency range is more than second frequency range
Upper limiting frequency, and the lower frequency limit of the first frequency range is also greater than the upper limiting frequency of the second frequency range, at this point, the first frequency range and the second frequency
Section is entirely different frequency range, and the frequency of the first frequency range is more than the frequency of the second frequency range.In another embodiment, the first frequency
The upper limiting frequency of section is more than the upper limiting frequency of the second frequency range, and the lower frequency limit of the first frequency range is more than the lower limit of second frequency range
The lower frequency limit of frequency and the first frequency range is less than the upper limiting frequency of the second frequency range, at this point, the frequency of the first frequency range and the second frequency
The frequency of section has the identical frequency in part, but the first frequency range has the frequency more than the second frequency range.
In embodiments of the present invention, the above method can apply in the electronic device, the electronic equipment can include mobile phone,
PAD, laptop or other equipment that can use antenna execution traffic operation.And for the ruler for reaching electronic equipment
Very little lightening requirement, the antenna size in the embodiment of the present invention can be with very little, and can be operated in the first frequency range of low-frequency range
In, for example, LTE low frequencies, LTE low-frequency ranges are 699MHZ-960MHZ, and the frequency that the first frequency range is upper frequency in low-frequency range
Section such as can be 824MHZ-960MHZ, so as to meet the requirement of the small size of antenna.
In addition, in the embodiment of the present invention, can controlling Antenna Operation first, this in the first frequency range with its size fit
One frequency range is the working frequency range in low-frequency range, in addition, the antenna can also be operated in intermediate-frequency band (for LTE antenna, intermediate frequency
Frequency range is 1710-2170MHZ) and high-frequency band (for LTE antenna, high-frequency band 2300-2690MHZ), can specifically it lead to
FM module is crossed to realize, since the size of the embodiment of the present invention can at least be operated in the first frequency range, for intermediate frequency and high frequency
Mode of frequency regulation can be realized according to existing design, no longer illustrate herein.
When performing traffic operation by antenna, the frequency modulation instruction about antenna can also be received, is in frequency modulation instruction
It, can be obstructed when the resonant frequency of antenna is adjusted to more than first frequency range or the first frequency range intermediate-frequency band and high-frequency band
Overmatching circuit and directly pass through FM circuit realize respective frequencies adjusting.And when frequency modulation instruct for by the resonance of antenna frequency
When rate is adjusted to the second frequency range below the first frequency range, need to select and turn on corresponding match circuit at this time so that the matching
Circuit is connected with FM circuit makes the resonant frequency point for being operated in second frequency range of the antenna；Wherein, described
The frequency of one frequency range is more than the frequency of second frequency range, such as the frequency range of the second frequency range can be 699MHZ-824MHZ,
The frequency of the frequency range is less than the frequency of the first frequency range.
Above-mentioned match circuit can be that be connected on the FM circuit of antenna be used to implement the circuit of matching impedance, lead to
It crosses and accesses different match circuits, can realize the tune that when antenna impedance is in different regions, can realize the second frequency range
Section, and can maximumlly improve antenna efficiency.
That is, in embodiments of the present invention, corresponding match circuit can be selected and turned on, and adjust the match circuit
Impedance value makes antenna reach the resonant frequency point.
In embodiments of the present invention, tunable capacitor and/or controllable impedance, FM module 2 can be provided in match circuit
Corresponding tunable capacitor and/or adjustable can be thus achieved by the voltage of voltage and/or controllable impedance for adjusting each tunable capacitor
The adjusting of the impedance of inductance, after the impedance of tunable capacitor or controllable impedance is changed, the resonant frequency of corresponding antenna
It just changes, so as to fulfill the adjusting of antenna frequencies.
In addition, in the embodiment of the present invention, electronic equipment can also include memory, which can be previously stored with pair
Relation table is answered, the impedance value pass corresponding with antenna resonant frequency of inductance or capacitance can be stored in the mapping table
System when receiving frequency modulation instruction, can obtain the inductance stored in the memory 3 corresponding to the resonant frequency in correspondence
Or the impedance value of capacitance, you can with according to the corresponding inductance or capacitance adjusted in connected match circuit of the impedance value
Voltage value, so as to fulfill impedance matching, the final adjusting for realizing antenna.
In addition, match circuit can include multiple match circuit branches in the embodiment of the present invention, each match circuit branch can
It is formed with the combination for having variable inductance, variable capacitance or both respectively.Specifically, it is illustrated in figure 2 in the embodiment of the present invention
Match circuit structure diagram, wherein match circuit can include four branches, as the first branch can including first
Become inductance L1 and the first variable capacitance C1, wherein L1 and C1 are connected in series with, and the connecting node of L1 and C1 is connected to the feedback of antenna
It before point, is connected in series with so as to fulfill with FM circuit, the opposite side ground connection of C1, the opposite side of L1 and first incoming end a company
It connects, wherein the first incoming end is selectively turned on switching switch.
The second branch can include the second variable inductance L2 and the connecting node of third variable inductance L3, wherein L2 and L3 connect
It is connected to before the distributing point of antenna, is connected in series with so as to fulfill with FM circuit, the opposite side ground connection of C1, another side joint of L3
Ground, the opposite side of L2 is connect with the second incoming end b, wherein the second incoming end is selectively turned on switching switch.
Third branch can include the second variable capacitance C2 and the connecting node of third variable capacitance C3, wherein C2 and C3 connect
It is connected to before the distributing point of antenna, the opposite side ground connection of C3, the opposite side of C2 is connect with third incoming end c, and wherein third accesses
End is selectively turned on switching switch.
The connecting node that 4th branch can include the 4th variable capacitance C4 and the 4th variable inductance L4, wherein C4 and L4 connects
The 4th incoming end of antenna is connected to, the opposite side ground connection of C4, the opposite side of L4 is connected to before the distributing point of antenna, and L4's is another
Side is connect with the 4th incoming end d, wherein the 4th incoming end is selectively turned on switching switch.
The embodiment of the present invention can be by accessing one in the first incoming end to the 4th incoming end, to select to connect as a result,
One in the logical above-mentioned first branch to the 4th branch, so as to the impedance of capacitance and/or inductance by adjusting branch road
To obtain the impedance with resonance frequency matches.
Make being operated in for the antenna described in addition, selecting and turning on corresponding match circuit described in the embodiment of the present invention
The resonant frequency point of second frequency range can include：
Determine that the resonant frequency point is located at the area information of smith circle diagrams；
It is determined based on the area information and connects corresponding match circuit branch.
The embodiment of the present invention, it may be determined that the corresponding antenna impedance of institute's resonant frequency to be achieved is close in history in frequency modulation instruction
Region where in this circle diagram, and based on the match circuit branch that the region determines to connect, then realize the tune of inductance and capacitance
Section.
Wherein, as shown in figure 3, in first area A of the corresponding antenna impedance of resonant frequency in circle diagram, selection connects the
Two branches, in second area B of the resonant frequency in circle diagram, third branch is connected in selection, resonant frequency circle diagram third
During the C of region, the first branch is connected in selection, and in the fourth region D of the resonant frequency in circle diagram, the 4th branch is connected in selection.Then
The impedance of the capacitance or inductance of the branch road is adjusted by the match circuit branch of connection makes Antenna Operation in resonance frequency
Rate point, and it also is able to adjust antenna impedance to 50 ohm, so that antenna is optimal efficiency.
In addition, the embodiment of the present invention further includes the process for generating above-mentioned correspondence, wherein can include：
S1：By the FM circuit Antenna Operation of antenna in the first frequency range, as first debugged out 824MHz-960MHz
Resonance point；
S2：Each branch is connected in selection successively, and adjusts the inductance of each branch road and the voltage at capacitance both ends, each so as to adjust
The impedance of the inductance and capacitance of branch road, generates corresponding resonance band；
S3：The associated storage inductance and the voltage value or inductance of capacitance and the impedance value of capacitance and corresponding humorous
It shakes frequency range.So as to generate above-mentioned mapping table, reading and the calling of data can be realized using the mapping table.
In conclusion the embodiment of the present invention can be adjusted the resonance point of antenna to antenna ruler by loading match circuit
The second frequency range below very little the first be adapted to frequency range so as to fulfill the extension of the beamwidth of antenna, while also is able to day easily
The impedance of line adjusts the efficiency for 50 ohm of optimum impedance, improving antenna.
In addition, the embodiment of the present invention additionally provides a kind of electronic equipment, which can include such as above-described embodiment
The beamwidth of antenna adjusting method, and the characteristics of can be achieved at the same time the small size and wide bandwidth of antenna.
As shown in figure 4, the principle assumption diagram for a kind of electronic equipment in the embodiment of the present invention, wherein the electronic equipment can
To include：
Antenna 1 and FM module 2, wherein FM module 2 include FM circuit and selectively to connect with FM circuit
With circuit.Also, FM module 2 can receive frequency modulation instruction, and when the frequency modulation instructs corresponding resonant frequency point second
During frequency range, selecting and turning on corresponding match circuit makes the resonant frequency for being operated in second frequency range of the antenna
Point；Wherein,
Wherein, the upper limiting frequency of first frequency range is more than the upper limiting frequency of second frequency range, first frequency range
Lower frequency limit is more than the lower frequency limit of second frequency range, and the resonant frequency for the antenna being operated in first frequency range is more than work
Make the resonant frequency of the antenna in second frequency range
In the embodiment of the present invention, the first frequency range and the second frequency range can be two frequency ranges for having different frequency, can also
It is the frequency range with part identical frequency.I.e. in one embodiment, the upper limiting frequency of the first frequency range is more than second frequency range
Upper limiting frequency, and the lower frequency limit of the first frequency range is also greater than the upper limiting frequency of the second frequency range, at this point, the first frequency range and the second frequency
Section is entirely different frequency range, and the frequency of the first frequency range is more than the frequency of the second frequency range.In another embodiment, the first frequency
The upper limiting frequency of section is more than the upper limiting frequency of the second frequency range, and the lower frequency limit of the first frequency range is more than the lower limit of second frequency range
The lower frequency limit of frequency and the first frequency range is less than the upper limiting frequency of the second frequency range, at this point, the frequency of the first frequency range and the second frequency
The frequency of section has the identical frequency in part, but the first frequency range has the frequency more than the second frequency range.
Electronic equipment in embodiments of the present invention can include mobile phone, PAD, laptop or other can use
The equipment that antenna performs traffic operation.And in order to reach the lightening requirement of the size of electronic equipment, in the embodiment of the present invention
Antenna size can be with very little, and can be operated in the first frequency range of low-frequency range, wherein low-frequency range is 699MHZ-960MHZ,
And the frequency range that the first frequency range is upper frequency in low-frequency range can be such as 824MHZ-960MHZ, so as to meet antenna
Small size requirement.
In addition, in the embodiment of the present invention, FM module 2 can control antenna 1 to be operated in and its ruler by its FM circuit
First frequency range of very little adaptation, first frequency range are the working frequency range in low-frequency range, in addition, the antenna is frequent in can also being operated in
Section and high-frequency band, can specifically be realized by FM module, since the size of the embodiment of the present invention can be at least operated in
First frequency range can be realized the mode of frequency regulation of intermediate frequency and high frequency according to existing design, no longer be illustrated herein.
When performing traffic operation by antenna, FM module 2 can also receive the frequency modulation instruction about antenna, in the tune
Frequency instruction is when the resonance point of antenna is adjusted to more than first frequency range or the first frequency range intermediate-frequency band and high-frequency band, can
The adjusting of respective frequencies is directly realized by the FM circuit of itself with obstructed overmatching circuit.And when frequency modulation instruction is used to incite somebody to action
When the resonance point of antenna is adjusted to the second frequency range below the first frequency range, need to select and turn on corresponding match circuit at this time,
So that the match circuit is connected with FM circuit makes the resonant frequency point for being operated in second frequency range of the antenna；Its
In, the frequency of first frequency range is more than the frequency of second frequency range, such as the frequency range of the second frequency range can be
699MHZ-824MHZ, the frequency of the frequency range are less than the frequency of the first frequency range.
Above-mentioned match circuit can be that be connected on the FM circuit of antenna be used to implement the circuit of matching impedance, lead to
It crosses and accesses different match circuits, can realize the tune that when antenna impedance is in different regions, can realize the second frequency range
Section, and can maximumlly improve antenna efficiency.
That is, in embodiments of the present invention, FM module 2 can select and turn on corresponding match circuit, and described in adjusting
The impedance value of match circuit makes antenna reach the resonant frequency point.
In embodiments of the present invention, tunable capacitor and/or controllable impedance can be provided in match circuit, it is each by adjusting
The impedance of corresponding tunable capacitor and/or controllable impedance can be thus achieved in the voltage of tunable capacitor and/or the voltage of controllable impedance
Adjusting, after the impedance for changing tunable capacitor or controllable impedance, the resonant frequency of corresponding antenna also just changes,
So as to fulfill the adjusting of antenna frequencies.
In addition, in the embodiment of the present invention, memory 3 can also be included, which can be previously stored with correspondence
Table can be stored with the impedance value of inductance or capacitance and the correspondence of antenna resonant frequency in the mapping table, adjust
When frequency module 2 receives frequency modulation instruction, the inductance corresponding to the resonant frequency in the correspondence in memory 3 can be obtained
Or the impedance value of capacitance, you can with according to the corresponding inductance or capacitance adjusted in connected match circuit of the impedance value
Voltage value, so as to fulfill impedance matching, the final adjusting for realizing antenna.
In addition, match circuit can include multiple match circuit branches in the embodiment of the present invention, each match circuit branch can
It is formed with the combination for having variable inductance, variable capacitance or both respectively.Specifically, it is illustrated in figure 2 in the embodiment of the present invention
Match circuit structure diagram, wherein match circuit can include four branches, as the first branch can including first
Become inductance L1 and the first variable capacitance C1, wherein L1 and C1 are connected in series with, and the connecting node of L1 and C1 is connected to the feedback of antenna
It before electricity point, is connected in series with so as to fulfill with FM circuit, the opposite side ground connection of C1, the opposite side of L1 and first incoming end company
A is met, wherein the first incoming end is selectively turned on switching switch.
The second branch can include the second variable inductance L2 and the connecting node of third variable inductance L3, wherein L2 and L3 connect
It is connected to before the distributing point of antenna, is connected in series with so as to fulfill with FM circuit, the opposite side ground connection of C1, another side joint of L3
Ground, the opposite side of L2 is connect with the second incoming end b, wherein the second incoming end is selectively turned on switching switch.
Third branch can include the second variable capacitance C2 and the connecting node of third variable capacitance C3, wherein C2 and C3 connect
It is connected to before the distributing point of antenna, the opposite side ground connection of C3, the opposite side of C2 is connect with third incoming end c, and wherein third accesses
End is selectively turned on switching switch.
The connecting node that 4th branch can include the 4th variable capacitance C4 and the 4th variable inductance L4, wherein C4 and L4 connects
The 4th incoming end of antenna is connected to, the opposite side ground connection of C4, the opposite side of L4 is connected to before the distributing point of antenna, and L4's is another
Side is connect with the 4th incoming end d, wherein the 4th incoming end is selectively turned on switching switch.
The embodiment of the present invention can be by accessing one in the first incoming end to the 4th incoming end, to select to connect as a result,
One in the logical above-mentioned first branch to the 4th branch, so as to capacitance or inductance by adjusting branch road impedance come
Obtain the impedance with resonance frequency matches.
In addition, FM module 2 selects and turns on corresponding match circuit and makes the work of the antenna in the embodiment of the present invention
It can include in the resonant frequency point of second frequency range：
Determine that the resonant frequency point is located at the area information of smith circle diagrams；
It is determined based on the area information and connects corresponding match circuit branch.
The embodiment of the present invention, FM module 2 can determine the corresponding antenna of institute's resonant frequency to be achieved in frequency modulation instruction
Region of the impedance where in Smith chart, and based on the match circuit branch that the region determines to connect, then realize inductance
With the adjusting of capacitance.
Wherein, as shown in figure 3, in first area A of the corresponding antenna impedance of resonant frequency in circle diagram, selection connects the
Two branches, in second area B of the resonant frequency in circle diagram, third branch is connected in selection, resonant frequency circle diagram third
During the C of region, the first branch is connected in selection, and in the fourth region D of the resonant frequency in circle diagram, the 4th branch is connected in selection.Then
The impedance of the capacitance or inductance of the branch road is adjusted by the match circuit branch of connection makes Antenna Operation in resonance frequency
Rate point, and it also is able to adjust antenna impedance to 50 ohm, so that antenna is optimal efficiency.
In addition, the embodiment of the present invention further includes the process for generating above-mentioned correspondence, wherein can include：
S1：By the FM circuit Antenna Operation of antenna in the first frequency range, as first debugged out 824MHz-960MHz
Resonance point；
S2：Each branch is connected in selection successively, and adjusts the inductance of each branch road and the voltage at capacitance both ends, each so as to adjust
The impedance of the inductance and capacitance of branch road, generates corresponding resonance band；
S3：The associated storage inductance and the voltage value or inductance of capacitance and the impedance value of capacitance and corresponding humorous
It shakes frequency range.So as to generate above-mentioned mapping table, reading and the calling of data can be realized using the mapping table.
In conclusion the embodiment of the present invention can be adjusted the resonance point of antenna to antenna ruler by loading match circuit
The second frequency range below very little the first be adapted to frequency range so as to fulfill the extension of the beamwidth of antenna, while also is able to day easily
The impedance of line adjusts the efficiency for 50 ohm of optimum impedance, improving antenna.
It is apparent to those skilled in the art that for convenience and simplicity of description, the data of foregoing description
The electronic equipment that processing method is applied to can refer to the corresponding description in before-mentioned products embodiment, and details are not described herein.
Above example is only exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make the present invention respectively within the spirit and scope of the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (10)
1. a kind of beamwidth of antenna adjusting method, including：
Antenna Operation is controlled in the first frequency range with its size fit；
Receive frequency modulation instruction；
When the frequency modulation instructs corresponding resonant frequency in the second frequency range, selecting and turning on corresponding match circuit makes the day
Line is operated in the resonant frequency of second frequency range；
Wherein, the upper limiting frequency of first frequency range is more than the upper limiting frequency of second frequency range, the lower limit of first frequency range
Frequency is more than the lower frequency limit of second frequency range, and the resonant frequency for the antenna being operated in first frequency range, which is more than, to be operated in
The resonant frequency of antenna in second frequency range.
2. according to the method described in claim 1, wherein, select and turn on corresponding match circuit wherein described and make the antenna
The resonant frequency for being operated in second frequency range includes：
Select and turn on corresponding match circuit；
The impedance value of the match circuit is adjusted, antenna is made to reach the resonant frequency of second frequency range.
It is described to select and turn on corresponding match circuit and include 3. according to the method described in claim 2, wherein：
Determine that the antenna impedance corresponding to second frequency range is located at the area information of smith circle diagrams；
It is determined based on the area information and connects corresponding match circuit branch.
4. according to the method described in claim 2, wherein, adjusting the impedance value of the match circuit, antenna is made to reach described humorous
Vibration frequency includes：
The impedance of the variable capacitance and/or variable inductance in the determining match circuit is adjusted, makes the Antenna Operation in institute
State the resonant frequency point of the second frequency range.
5. according to the method described in claim 4, wherein, the method further includes:
Using the mapping table of storage, the impedance of the variable capacitance and/or variable inductance is adjusted；Wherein, the corresponding pass
It is that table includes resonant frequency and the correspondence of the impedance of variable capacitance and/or variable inductance.
6. according to the method described in claim 1, wherein, the frequency range of first frequency range is 824MHZ-960MHZ, described
The frequency range of second frequency range is 699MHZ-824MHZ.
7. a kind of electronic equipment, including：
Antenna, the working frequency range of size fit are at least the first frequency range；
FM module is configured to receive frequency modulation instruction, and when the frequency modulation instructs corresponding resonant frequency in the second frequency range,
Select and turn on the resonant frequency that corresponding match circuit makes the Antenna Operation in second frequency range；Wherein, it is described
The frequency of first frequency range is more than the frequency of second frequency range；
Wherein, the upper limiting frequency of first frequency range is more than the upper limiting frequency of second frequency range, the lower limit of first frequency range
Frequency is more than the lower frequency limit of second frequency range, and the resonant frequency for the antenna being operated in first frequency range, which is more than, to be operated in
The resonant frequency of antenna in second frequency range.
8. electronic equipment according to claim 7, wherein, the FM module is configured to adjust selected match circuit
Impedance value, antenna is made to reach the resonant frequency of second frequency range.
9. electronic equipment according to claim 8, wherein, the FM module is further configured to adjust the matching electricity
The impedance of variable capacitance and/or variable inductance in road makes the resonance for being operated in second frequency range frequency of the antenna
Rate.
10. electronic equipment according to claim 7, wherein, the match circuit includes the first match circuit branch, second
Match circuit branch, third match circuit branch and the 4th match circuit branch, wherein, the first match circuit branch includes the
One variable inductance and the first variable capacitance, the second matching branch include the second variable inductance and third variable inductance, third matching
Branch includes the second variable capacitance and third variable capacitance, and the 4th matching branch can power transformation including the 4th variable capacitance and the 4th
Sense.
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| CN201711465137.4A CN108199145A (en) | 2017-12-28 | 2017-12-28 | A kind of beamwidth of antenna adjusting method and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711465137.4A CN108199145A (en) | 2017-12-28 | 2017-12-28 | A kind of beamwidth of antenna adjusting method and electronic equipment |
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| CN108199145A true CN108199145A (en) | 2018-06-22 |
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| CN201711465137.4A Pending CN108199145A (en) | 2017-12-28 | 2017-12-28 | A kind of beamwidth of antenna adjusting method and electronic equipment |
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| CN109004342A (en) * | 2018-07-19 | 2018-12-14 | 合肥联宝信息技术有限公司 | Antenna system, electronic equipment and antenna band adjusting method |
| CN109346832A (en) * | 2018-09-30 | 2019-02-15 | 联想(北京)有限公司 | A kind of electronic equipment |
| CN109462031A (en) * | 2018-10-10 | 2019-03-12 | 清华大学 | Twin-stage tunable antenna based on variable inductance and variable capacitance |
| CN113810064A (en) * | 2021-09-02 | 2021-12-17 | Oppo广东移动通信有限公司 | Antenna control method and device, electronic equipment and readable storage medium |
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| US8649833B1 (en) * | 2011-07-22 | 2014-02-11 | Amazon Technologies, Inc. | Conductive structure for use as sensor pad and antenna |
| CN105226401A (en) * | 2014-06-09 | 2016-01-06 | 联想(北京)有限公司 | Signal processing method and electronic equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109004342A (en) * | 2018-07-19 | 2018-12-14 | 合肥联宝信息技术有限公司 | Antenna system, electronic equipment and antenna band adjusting method |
| CN109004342B (en) * | 2018-07-19 | 2021-09-14 | 合肥联宝信息技术有限公司 | Antenna system, electronic device and antenna frequency band adjusting method |
| CN109346832A (en) * | 2018-09-30 | 2019-02-15 | 联想(北京)有限公司 | A kind of electronic equipment |
| CN109462031A (en) * | 2018-10-10 | 2019-03-12 | 清华大学 | Twin-stage tunable antenna based on variable inductance and variable capacitance |
| CN113810064A (en) * | 2021-09-02 | 2021-12-17 | Oppo广东移动通信有限公司 | Antenna control method and device, electronic equipment and readable storage medium |
| CN113810064B (en) * | 2021-09-02 | 2022-08-30 | Oppo广东移动通信有限公司 | Antenna control method and device, electronic equipment and readable storage medium |
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