CN106935978A - Antenna and mobile terminal - Google Patents
Antenna and mobile terminal Download PDFInfo
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- CN106935978A CN106935978A CN201710148325.8A CN201710148325A CN106935978A CN 106935978 A CN106935978 A CN 106935978A CN 201710148325 A CN201710148325 A CN 201710148325A CN 106935978 A CN106935978 A CN 106935978A
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- Prior art keywords
- antenna
- tunable capacitor
- antenna body
- earth point
- point
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/328—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 between a radiating element and ground
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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Abstract
Present disclose provides a kind of antenna, the antenna includes：Antenna body；First earth point, is arranged on the antenna body；Distributing point, is arranged on the antenna body, and the distributing point is away from first earth point；And tunable capacitor, it is arranged on the antenna body, near first earth point, the tunable capacitor is used to adjust the radiation efficiency of the antenna to the tunable capacitor.
Description
Technical field
This disclosure relates to a kind of antenna and a kind of mobile terminal.
Background technology
With the fast development of the communication technology, antenna is increasingly being applied to navigation, radar, radio communication, wide
Broadcast and the numerous areas such as remote sensing.In use, generally require antenna to occupy little space, bandwidth of operation is big, causes the effect of antenna
The low problem of rate.To solve the problems, such as that this space and performance contradict, it is proposed that a kind of adjustable antenna expands the beamwidth of antenna.
But, the frequency range that adjustable antenna of the prior art can be in relative broad range is operated, but inefficient.
The content of the invention
An aspect of this disclosure provides a kind of antenna, including：Antenna body；First earth point, is arranged on the day
On line body；Distributing point, is arranged on the antenna body, and the distributing point is away from first earth point；And adjustable electric
Hold, be arranged on the antenna body, near first earth point, the tunable capacitor is used to adjust institute the tunable capacitor
State the radiation efficiency of antenna.
Alternatively, when tunable capacitor is the first value, antenna has highest radiation efficiency in Tx patterns；And tunable capacitor
During for second value, antenna has highest radiation efficiency in Rx patterns, wherein, the first value is different from second value.
Alternatively, antenna is loop aerial, wherein：The first end that first earth point is arranged on antenna body forms first
Short-circuit end, distributing point is arranged on the second end of the antenna body, the first end ground connection of tunable capacitor, and the of tunable capacitor
Two ends are positioned close on the antenna body of first end；Or antenna also includes the second earth point, the first earth point is arranged on
The first end of antenna body forms the first short-circuit end, and the second end that the second earth point is arranged on antenna body forms second
Short-circuit end, distributing point is positioned close on the antenna body of the second short-circuit end, the first end ground connection of tunable capacitor, adjustable electric
The second end for holding is positioned close on the antenna body of the first short-circuit end；Or antenna also includes the second earth point, first connects
The first end that place is arranged on antenna body forms the first short-circuit end, and distributing point is arranged on the second end of antenna body,
Second earth point is positioned close on the antenna body of distributing point, the first end ground connection of tunable capacitor, the second end of tunable capacitor
It is positioned close on the antenna body of the first short-circuit end.
Alternatively, antenna is IFA antennas, wherein, the first earth point is positioned close at the first end of antenna body, with
Make first end form first to open a way end, the first end ground connection of tunable capacitor, the second end of tunable capacitor is positioned close to the
On the antenna body of one open circuit end.
Another aspect of the disclosure provides a kind of mobile terminal, including antenna, and antenna includes：Antenna body；First
Earth point, is arranged on antenna body；Distributing point, is arranged on antenna body, and distributing point is away from the first earth point；And it is adjustable
Electric capacity, is arranged on antenna body, and near the first earth point, tunable capacitor is used to adjust the radiation efficiency of antenna to tunable capacitor.
Alternatively, the mobile terminal also includes：Communication module, communication module is connected with distributing point, and communication module passes through day
Line receives and dispatches radiation signal.
Alternatively, the mobile terminal also includes：Controller, for controlling tunable capacitor to be worked with a capacitance.
Alternatively, the mobile terminal also includes：Processor, for being operated in Tx patterns when mobile terminal, by controller
Control tunable capacitor loading first is worth, to cause communication module by antenna with highest radiation efficiency radiation signal；When
Mobile terminal is operated in Rx patterns, controls tunable capacitor to load second value by controller, to cause that communication module passes through antenna
Radiation signal is received with highest radiation efficiency.
Alternatively, the mobile terminal also includes：First place, is connected with the first earth point in antenna；And second ground
Point, is connected with the tunable capacitor in antenna.
Brief description of the drawings
In order to be more fully understood from the disclosure and its advantage, referring now to the following description with reference to accompanying drawing, wherein：
Fig. 1 a-1b diagrammatically illustrate the application scenarios of antenna in accordance with an embodiment of the present disclosure；
Fig. 2 a diagrammatically illustrate the structured flowchart of antenna in accordance with an embodiment of the present disclosure；
Fig. 2 b diagrammatically illustrate Antenna Operation in accordance with an embodiment of the present disclosure feedback factor at each frequency；
Fig. 2 c diagrammatically illustrate Antenna Operation in accordance with an embodiment of the present disclosure efficiency at each frequency；
Fig. 3 diagrammatically illustrates the circuit diagram of antenna in accordance with an embodiment of the present disclosure；
Fig. 4 diagrammatically illustrates the circuit diagram of the antenna according to another embodiment of the present disclosure；
Fig. 5 diagrammatically illustrates the circuit diagram of the antenna of the another embodiment according to the disclosure；
Fig. 6 diagrammatically illustrates the circuit diagram of the antenna of the another embodiment according to the disclosure；
Fig. 7 diagrammatically illustrates the structured flowchart of mobile terminal in accordance with an embodiment of the present disclosure.
Specific embodiment
According to reference to accompanying drawing to the described in detail below of disclosure exemplary embodiment, the other side of the disclosure, advantage
Be will become obvious for those skilled in the art with prominent features.
In the disclosure, term " including " and " containing " and its derivative mean including and it is unrestricted；Term "or" is bag
Containing property, mean and/or.
In this manual, following is explanation for describing the various embodiments of disclosure principle, should not be with any
Mode is construed to limit scope of disclosure.Referring to the drawings described below is used to help comprehensive understanding by claim and its equivalent
The exemplary embodiment of the disclosure that thing is limited.It is described below to help understand including various details, but these details should
Think what is be merely exemplary.Therefore, it will be appreciated by those of ordinary skill in the art that without departing substantially from the scope of the present disclosure and spirit
In the case of, embodiment described herein can be made various changes and modifications.Additionally, for clarity and brevity,
Eliminate the description of known function and structure.Additionally, running through accompanying drawing, same reference numbers are used for identity function and operation.
With the fast development of the communication technology, radiotechnics is increasingly used in every field.Due to day
Line be often operated in transmission signal from receive signal frequency range it is different in the case of, if the loading of antenna is constant, then it is different frequently
Operating efficiency under section is then different.However, in use, in order to adapt to the operative scenario of more frequency ranges, it is desirable to antenna
Antenna loading can be automatically adjusted to match current working signal frequency range, so as to obtain more preferable operating efficiency.
Embodiment of the disclosure provides one kind and can respectively adjust antenna loading in transmitting (Tx) and under receiving (Rx) state
Adjustable antenna.The adjustable antenna includes antenna body, earth point, distributing point and tunable capacitor.Wherein, earth point, feed
Point and tunable capacitor are all disposed within antenna body, and one end ground connection of tunable capacitor, the other end is coupled in parallel to be close to ground connection
On the antenna body of point (far and near using antenna body as with reference to basis in the embodiment of the present disclosure), according to the difference of receiving and transmitting signal
Frequency range adjusts the capacitance of tunable capacitor, so that no matter antenna is operated in transmitting or receives when under frequency range, radiation efficiency
Highest can be reached.
Fig. 1 a-1b diagrammatically illustrate the application scenarios of antenna in accordance with an embodiment of the present disclosure.
As illustrated, antenna 100 can be arranged in wireless device, transmission signal and reception can be completed by antenna
The function of signal.Wireless device can including mobile phone, remote control, intercom, radar etc. mobile terminal.
As shown in Figure 1a, in transmission signal, by the high frequency electric of certain frequency on antenna, high frequency electric is converted into height
Frequency electric wave is outwards propagated, and realizes that signal is launched.
As shown in Figure 1 b, when signal is received, antenna receives high frequency external electric wave, and the high-frequency electric wave for receiving is converted into height
Frequency electric current passes through on antenna, realizes that signal is received.
According to the embodiment of the present disclosure, there is provided a kind of adjustable antenna, the adjustable antenna includes tunable capacitor.In antenna work
Make when in transmit state, according to the frequency range of transmission signal, regulation tunable capacitor is to the first capacitance so that antenna loading is adapted to
Current frequency range, reaches maximum radiation efficiency.Antenna Operation in receive state when, according to receive signal frequency range, regulation can
Electric capacity to the second capacitance is adjusted, so that antenna loading adapts to new frequency range, maximum radiation efficiency is reached.
Fig. 2 a diagrammatically illustrate the structured flowchart of antenna 100 in accordance with an embodiment of the present disclosure.
As shown in Figure 2 a, antenna 100 includes：Antenna body 110；First earth point 120, is arranged on antenna body 110；
Distributing point 130, is arranged on antenna body 110, and away from the first earth point 120；And tunable capacitor 140, it is arranged on institute
State on antenna body 110, and near the first earth point 120, the tunable capacitor 140 is used to adjust the radiation efficiency of antenna.
In the disclosed embodiments, antenna 100 can be including loop aerial, IFA antennas etc..Antenna body 110 can be wrapped
Include single turn antenna body, it is also possible to including multi-turn antenna body.First earth point 120 can be arranged on the end of antenna body 110
End, may also be arranged on any position on antenna body 110.Distributing point 130 can be arranged on the end of antenna body 110,
Any position of antenna body can be arranged on.Tunable capacitor 140 can be arranged on the earth point 120 of distributing point 130 and first it
Between antenna body 100 on, it is also possible to be arranged on the first earth point 120 away from the antenna body 100 of distributing point 130.
In the disclosed embodiments, tunable capacitor 140 can be with parallel connection access antenna body 110, i.e. the one of tunable capacitor
End ground connection, other end is accessed in antenna body.For example, one end that tunable capacitor accesses antenna can be shell fragment, by shell fragment
Contact antenna body, antenna body is accessed to realize that tunable capacitor is in parallel.Tunable capacitor is accessed into antenna by way of parallel connection
Body, can be simple to operate without destroying antenna body in itself.
According to the embodiment of the present disclosure, tunable capacitor 140 is positioned close on the antenna body of the first earth point 120.This public affairs
The distance opened in embodiment is with reference to basis with antenna body.That is, tunable capacitor 140 can be represented near the first earth point 120
For the antenna body length between the earth point 120 of tunable capacitor 140 and first is shorter, tunable capacitor 140 and distributing point 130 are shorter than
Between antenna body length, that is to say, that distance of the tunable capacitor 140 to the first earth point 120 on antenna body is less than
To the distance of distributing point 130.
The position that tunable capacitor is positioned close to the first earth point can make Antenna Operation in low-frequency range, and in low-frequency range
There is good working order and operating efficiency under environment.When tunable capacitor is accessed near the position of the first earth point, work
Make effect and for example may be referred to following descriptions to Fig. 2 b and Fig. 2 c.
Fig. 2 b diagrammatically illustrate Antenna Operation in accordance with an embodiment of the present disclosure feedback factor at each frequency.
As shown in Figure 2 b, ordinate represents reflectance factor, and abscissa represents working frequency.Solid-line curve represents that system is in Tx
When, antenna loading is that X (the loaded value size of antenna loading X can be changed by adjusting the capacitance of tunable capacitor) is corresponding
Antenna port reflectance factor.When imaginary curve represents that system is in Rx, antenna loading is that (size that is loaded onto of antenna loading Y can be with for Y
Changed by adjusting the capacitance of tunable capacitor) corresponding antenna port reflectance factor.
When reflectance factor is less than -5, represent that antenna can be with normal work in the frequency range.Such as Fig. 2 b, it is seen then that when will be adjustable
Electric capacity access near the first earth point antenna body on after, the antenna low-frequency range (880-960MHz) can with normal work,
If tunable capacitor is not linked into during near the position of the first earth point, antenna will be unable to work, Huo Zhegong in low-frequency range
Make efficiency low.
Fig. 2 c diagrammatically illustrate Antenna Operation in accordance with an embodiment of the present disclosure efficiency at each frequency.
As shown in Figure 2 c, ordinate represents efficiency, and abscissa represents operating efficiency.When solid-line curve represents that system is in Tx,
Antenna loading is X (loaded value of antenna loading X can be changed by adjusting the capacitance of tunable capacitor) corresponding radiation efficiency.It is empty
When curve represents that system is in Rx, antenna loading is that (loaded value of antenna loading Y can be by adjusting the capacitance of tunable capacitor for Y
Change) corresponding radiation efficiency.
It can be seen that, after tunable capacitor is accessed on the antenna body of the first earth point, the Antenna Operation is in low-frequency range
When (such as 880-915MHz), it may have good radiation efficiency.
According to the embodiment of the present disclosure, when tunable capacitor is the first value, antenna has highest radiation efficiency in Tx patterns.Such as
Shown in Fig. 1 a-1b, in the case that antenna 100 is operated in Tx patterns, transmission signal enters antenna body 110 by distributing point 130,
Tunable capacitor adjusts capacitance to change the loading of antenna 100 according to the frequency range of transmission signal so that the antenna under current loading
Frequency range with transmission signal, with highest efficiency.For example, the frequency range of transmission signal is 880-915MHz, tunable capacitor adjustment
Capacitance is 0.8pf, then now antenna has highest operating efficiency.
According to the embodiment of the present disclosure, when tunable capacitor is second value, antenna has highest efficiency in Rx patterns, and this second
Value is different from the above-mentioned first value.As shown in Fig. 1 a-1b, in the case that antenna 100 is operated in Rx, high-frequency electric wave signal is by antenna
After 100 receive, high-frequency electric wave is converted into high frequency electric and receives signal by being formed in antenna 100, tunable capacitor is according to connecing
The frequency range of the collection of letters number, adjusts capacitance to change the loading of antenna 100 so that the antenna match under current loading receives the frequency of signal
Section, with highest efficiency.For example, the frequency range for receiving signal is 925-960MHz, tunable capacitor adjustment capacitance is 0.5pf, then
Now antenna has highest operating efficiency.
According to the adjustable antenna that the embodiment of the present disclosure is provided, adding for antenna, can be adjusted according to the different frequency range of receiving and transmitting signal
Carry so that the loading of antenna matches current working frequency range, to reach highest efficiency.And in embodiment of the disclosure, will
Tunable capacitor is coupled in parallel to be close on the antenna body of the first earth point, can make Antenna Operation in low-frequency range, and low
There is good effect and efficiency higher under frequency range state.
Below with reference to Fig. 3~Fig. 6, the antenna shown in Fig. 2 a is described further in conjunction with specific embodiments.
Fig. 3 diagrammatically illustrates the circuit diagram of antenna 100 in accordance with an embodiment of the present disclosure.
As shown in figure 3, antenna 100 includes antenna body 210, the first earth point 220, distributing point 230 and tunable capacitor
240。
According to the embodiment of the present disclosure, antenna is loop aerial.First earth point 220 is arranged on the first of antenna body 210
End forms the first short-circuit end.Distributing point 230 is arranged on the second end of antenna body 210.The first end of tunable capacitor 240
Ground connection, the second end is positioned close on the antenna body of first end.That is, one end connection distributing point of antenna, other end ground connection,
Earth terminal forms the first short-circuit end, near one tunable capacitor of the position of earth point access in parallel.
When Antenna Operation is in Tx, sending signal is entered by distributing point 230, and reaching first by antenna body 210 is grounded
Point 220, tunable capacitor 240 can adjust capacitance according to the frequency range of sending signal, so as to change the loading of antenna so that antenna
Loading and work at present frequency band match, to reach highest operating efficiency.According to the embodiment of the present disclosure, tunable capacitor 240 is accessed and leaned on
On the antenna body of nearly first earth point 220, Antenna Operation can be made in low-frequency range, and with good effect and efficiently
Rate.
When Antenna Operation is in Rx, high-frequency electric wave signal is converted into high frequency electric by antenna body after being received by the antenna,
Final to feed back to distributing point 230, tunable capacitor 240 can adjust capacitance according to the frequency range for receiving signal, so as to change antenna
Loading so that the loading of antenna and current reception frequency band match, to reach highest operating efficiency.
According to the embodiment of the present disclosure, distributing point and the first earth point are arranged on two ends of antenna body, adjustable electric
Appearance is positioned close on the antenna body of the first earth point, and the loading of antenna can be adjusted according to the different frequency range of receiving and transmitting signal,
So that the current working frequency range of the loading matching of antenna, to reach highest efficiency.And can expeditiously be operated in transmitting-receiving
In the case that signal is low frequency band.
Fig. 4 diagrammatically illustrates the circuit diagram of the antenna 100 according to another embodiment of the present disclosure.
As shown in figure 4, antenna 100 includes antenna body 310, the first earth point 320, distributing point 330, tunable capacitor 340
And second earth point 350.
According to the embodiment of the present disclosure, antenna is loop aerial.First earth point 320 is arranged on the first of antenna body 310
End forms the first short-circuit end.The second end formation second end that second earth point 350 is arranged on antenna body 310 is short
Road.Distributing point 330 is positioned close on the antenna body 310 of the second short-circuit end.The first end ground connection of tunable capacitor 340, the
Two ends are positioned close on the antenna body of the first short-circuit end.That is, two ends of antenna are all grounded so that the two ends
Short-circuit end is all formed as, distributing point is being accessed near with the position of end, in the position access one in parallel near another end
Individual tunable capacitor.According to the embodiment of the present disclosure, it is understood that be near distributing point 330 position in antenna body end simultaneously
Couple into one place, compared to the antenna described referring to above-mentioned Fig. 3, multi-parallel accesses an earth point and can be used to adjust day
Resonance condition when line works, help adjusts effect of the antenna when low-frequency range works.
When Antenna Operation is in Tx, sending signal is entered in high frequency electric form by distributing point 330, and antenna 100 is by high frequency
Electric current is converted into high-frequency electric wave, is sent out, and tunable capacitor 340 can adjust capacitance according to the frequency range of sending signal, so as to change
Become the loading of antenna so that the loading of antenna and work at present frequency band match, to reach highest operating efficiency.
When Antenna Operation is in Rx, antenna receives high-frequency electric wave signal, and is converted to high-frequency current signal, according to signal
Frequency range, tunable capacitor 340 can according to the frequency range of signal adjust capacitance, so as to change the loading of antenna so that antenna plus
Load and current reception frequency band match, to reach highest operating efficiency.
According to the embodiment of the present disclosure, two ends of antenna body are grounded, and tunable capacitor is positioned close to the day of an end
On line body, distributing point is positioned close on the antenna body of another end.Can be adjusted according to the different frequency range of receiving and transmitting signal
The loading of antenna so that the loading of antenna matches current working frequency range, to reach highest efficiency.By near distributing point simultaneously
Coupling can expeditiously be operated in receiving and transmitting signal for low frequency into place and the first earth point tunable capacitor of parallel connection access nearby
In the case of frequency range.
Fig. 5 diagrammatically illustrates the circuit diagram of the antenna 100 of the another embodiment according to the disclosure.
As shown in figure 5, antenna 100 includes antenna body 410, the first earth point 420, distributing point 430, tunable capacitor 440
And second earth point 450.
According to the embodiment of the present disclosure, antenna is loop aerial.First earth point 420 is arranged on the first of antenna body 410
End forms the first short-circuit end.Distributing point 430 is arranged on the second end of antenna body 310.Second earth point 450 is arranged on
On the antenna body 410 of distributing point 430.The first end ground connection of tunable capacitor 440, the second end is positioned close to the first short circuit
On the antenna body of end.That is, the end ground connection of antenna, forms short-circuit end, and distributing point is accessed in another end, near feedback
The position parallel connection of electricity point accesses another earth point, in one tunable capacitor of position access in parallel near ground connection end.According to this
Embodiment is disclosed, it is understood that is that parallel connection accesses one place in antenna body in the position of close distributing point 430, is compared
In the antenna described referring to above-mentioned Fig. 3, multi-parallel one earth point of access can be used to adjust resonance condition during Antenna Operation,
Help adjusts effect of the antenna when low-frequency range works.
When Antenna Operation is in Tx, sending signal is entered in high frequency electric form by distributing point 430, and antenna 100 is by high frequency
Electric current is converted into high-frequency electric wave, is sent out, and tunable capacitor 440 can adjust capacitance according to the frequency range of sending signal, so as to change
Become the loading of antenna so that the loading of antenna and work at present frequency band match, to reach highest operating efficiency.
When Antenna Operation is in Rx, high-frequency electric wave signal is received, be converted to high-frequency current signal, according to the frequency range of signal,
Tunable capacitor 440 can according to the frequency range of signal adjust capacitance, so as to change the loading of antenna so that the loading of antenna with it is current
Reception frequency band match, to reach highest operating efficiency.
According to the embodiment of the present disclosure, one end of antenna body is grounded, and the other end accesses distributing point, and tunable capacitor is arranged on and leans on
On the antenna body of nearly ground connection end, near the position of distributing point another place of access in parallel.Can be according to receiving and transmitting signal
Different frequency range adjusts the loading of antenna so that the loading of antenna matches current working frequency range, to reach highest efficiency.Pass through
Distributing point access place in parallel and the first earth point parallel connection nearby nearby accesses tunable capacitor can expeditiously be operated in receipts
In the case of signaling as low frequency band.
Fig. 6 diagrammatically illustrates the circuit diagram of the antenna 100 of the another embodiment according to the disclosure.
As shown in fig. 6, antenna 100 includes antenna body 510, the first earth point 520, distributing point 530 and tunable capacitor
540。
According to the embodiment of the present disclosure, antenna is IFA antennas.First earth point 520 is positioned close to the first of antenna body
End, so that first end forms the first open circuit end.Distributing point 530 is positioned close at the second end of antenna body.
The first end ground connection of tunable capacitor 540, the second end is positioned close on the antenna body of the first open circuit end.That is, antenna body
Two ends for open circuit end, near an end position access distributing point, near another end position access tunable capacitor, connect
Place is located between distributing point and tunable capacitor and near tunable capacitor.
When Antenna Operation is in Tx, sending signal is entered in high frequency electric form by distributing point 530, and antenna 100 is by high frequency
Electric current is converted into high-frequency electric wave, is sent out, and tunable capacitor 540 can adjust capacitance according to the frequency range of sending signal, so as to change
Become the loading of antenna so that the loading of antenna and work at present frequency band match, to reach highest operating efficiency.
When Antenna Operation is in Rx, high-frequency electric wave signal is received, be converted to high-frequency current signal, according to the frequency range of signal,
Tunable capacitor 540 adjusts itself capacitance, so as to obtain the loading matching work at present frequency range of current antenna.
According to the embodiment of the present disclosure, antenna ends are open circuit end, and earth point is close near an open circuit end, distributing point
Another open circuit end, tunable capacitor is positioned close on the antenna body of open circuit end of earth point.Can be according to receiving and transmitting signal
Different frequency range adjust the loading of antenna so that the loading current working frequency range of matching of antenna, to reach highest efficiency.It is logical
Nearby the tunable capacitor that accesses in parallel can expeditiously be operated in receiving and transmitting signal in the case of low frequency band to cross earth point.
Antenna disclosed in above-described embodiment can be used for any required electronic equipment using antenna receiving and transmitting signal, for example
In mobile terminal, when above-mentioned antenna applications are carried out into data transmit-receive in the terminal, distributing point and shifting on the antenna
Communication module connection in dynamic terminal, is discussed in detail the structure and working method of mobile terminal by way of example below.
Fig. 7 diagrammatically illustrates the structured flowchart of mobile terminal 700 in accordance with an embodiment of the present disclosure；
As shown in fig. 7, mobile terminal 700 includes antenna 710, communication module 720, controller 730, processor 740, first
The place 760 of place 750 and second.The mobile terminal 700 may refer to the antenna structure described above with reference to Fig. 2~Fig. 6, with
Realize multiband high efficiency signal transmission.
Antenna 710 includes antenna body, the first earth point, is arranged on antenna body；Distributing point, is arranged on antenna body
On, and away from the first earth point；Tunable capacitor, is arranged on antenna body, and near the first earth point, for adjusting day
The radiation efficiency of line.Antenna 710 may refer to the antenna 100 of above-mentioned reference Fig. 2-Fig. 6 descriptions, will not be repeated here.
Communication module 720 is connected with the distributing point in antenna 710, and radiation signal is received and dispatched by antenna 710.According to the disclosure
Embodiment, in radiation signal, communication module 720 transmits into antenna 710 high frequency electric from distributing point, antenna 710
High frequency electric is converted into high-frequency electric wave, to emission.When radiation signal is received, antenna 710 receives high-frequency electric wave and is converted into
High frequency electric, has distributing point to feed back to communication module 720, receives radiation signal.
Controller 730 is used to control the tunable capacitor in antenna 710 to be worked with a capacitance.According to the embodiment of the present disclosure, control
Capacitance of the device processed 730 according to instruction adjustment tunable capacitor.
Processor 740 is used to be operated in Tx patterns when mobile terminal 700, by the control antenna 710 of controller 730 can
Capacitive load first is adjusted to be worth, to cause communication module 720 by antenna 710 with highest efficiency emission radiation signal.Work as movement
Terminal 700 is operated in Rx patterns, controls the tunable capacitor in antenna 710 to load second value by controller 730, to cause communication
Module 720 receives radiation signal by antenna 710 with highest efficiency.According to the embodiment of the present disclosure, can first be stored with various
The capacitor's capacity of antenna match under frequency range, when current working frequency range is detected, searches corresponding capacitor's capacity, by control
The capacitance of tunable capacitor is adjusted to device 730 capacitance of matching.
Specifically, processor 710 can for example include general purpose microprocessor, instruction set processor and/or related chip group
And/or special microprocessor (for example, application specific integrated circuit (ASIC)), etc..Processor 710 can also be included for caching use
The onboard storage device on way.
First place 750 is connected with the first earth point in antenna 710.
Second place 760 is connected with the tunable capacitor in antenna 710.
According to the embodiment of the present disclosure, mobile terminal 700 can also include computer-readable recording medium 770, for example can be with
It is the arbitrary medium that can include, store, transmit, propagate or transmit instruction.For example, readable storage medium storing program for executing 770 can include but
It is not limited to electricity, magnetic, optical, electromagnetic, infrared or semiconductor system, device, device or propagation medium.Readable storage medium storing program for executing specifically shows
Example includes：Magnetic memory apparatus, such as tape or hard disk (HDD)；Light storage device, such as CD (CD-ROM)；Memory, such as deposits at random
Access to memory (RAM) or flash memory；And/or wire/wireless communication link.Computer-readable recording medium can include computer journey
Sequence, the computer program can include code/computer executable instructions, and computer program can be configured with for example to be included
The computer program code of computer program module.
A kind of antenna of this programme protection, the tunable capacitor of the antenna is arranged on the antenna body, i.e. relative to
Antenna body is reference, and the tunable capacitor is arranged on the end of antenna, and the tunable capacitor is described near first earth point
Tunable capacitor is used to adjust the radiation efficiency of the antenna.In other words, the end that tunable capacitor is arranged on antenna of this programme,
Near earth point, so as to improve the radiation efficiency of the antenna.More excellent embodiment improve specific frequency emission effciency and
In the receiving efficiency of specific frequency.Relative in the prior art using tunable capacitor all be set distributing point at for adjustment day
The working frequency of line is entirely different technical scheme.
Although the certain exemplary embodiments with reference to the disclosure have shown and described the disclosure, art technology
Personnel it should be understood that in the case of the spirit and scope of the present disclosure limited without departing substantially from appended claims and its equivalent,
The various changes in form and details can be carried out to the disclosure.Therefore, the scope of the present disclosure should not necessarily be limited by above-described embodiment,
But not only should be determined by appended claims, also it is defined by the equivalent of appended claims.
Claims (9)
1. a kind of antenna, the antenna includes：
Antenna body；
First earth point, is arranged on the antenna body；
Distributing point, is arranged on the antenna body, and the distributing point is away from first earth point；And
Tunable capacitor, is arranged on the antenna body, and the tunable capacitor is near first earth point, the tunable capacitor
Radiation efficiency for adjusting the antenna.
2. antenna according to claim 1, wherein：
When the tunable capacitor is the first value, the antenna has highest radiation efficiency in Tx patterns；And
When the tunable capacitor is second value, the antenna has a highest radiation efficiency in Rx patterns, first value and the
Two-value is different.
3. antenna according to claim 1, the antenna is loop aerial, wherein：
The first end that first earth point is arranged on the antenna body forms the first short-circuit end, and the distributing point is set
In the second end of the antenna body, the first end of the tunable capacitor is grounded, and the second end of the tunable capacitor is arranged on
On the antenna body of the first end；Or
The antenna also includes the second earth point, and the first end that first earth point is arranged on the antenna body forms the
One short-circuit end, the second end that second earth point is arranged on the antenna body forms the second short-circuit end, the feedback
Electricity point is positioned close on the antenna body of the described second short-circuit end, the first end ground connection of the tunable capacitor, described
Second end of tunable capacitor is positioned close on the antenna body of the described first short-circuit end；Or
The antenna also includes the second earth point, and the first end that first earth point is arranged on the antenna body forms the
One short-circuit end, the distributing point is arranged on the second end of the antenna body, and second earth point is positioned close to institute
State on the antenna body of distributing point, the first end ground connection of the tunable capacitor, the second end of the tunable capacitor is arranged on
On the antenna body of the described first short-circuit end.
4. antenna according to claim 1, the antenna is IFA antennas, wherein,
First earth point is positioned close at the first end of the antenna body, so that the first end forms first
Open circuit end, the first end ground connection of the tunable capacitor, the second end of the tunable capacitor is positioned close to first open circuit
On the antenna body of end.
5. a kind of mobile terminal, including antenna, the antenna includes：
Antenna body；
First earth point, is arranged on the antenna body；
Distributing point, is arranged on the antenna body, and the distributing point is away from first earth point；And
Tunable capacitor, is arranged on the antenna body, and the tunable capacitor is near first earth point, the tunable capacitor
Radiation efficiency for adjusting the antenna.
6. mobile terminal according to claim 5, also includes：
Communication module, the communication module is connected with the distributing point, and the communication module receives and dispatches radiation letter by the antenna
Number.
7. mobile terminal according to claim 5, also includes：
Controller, the controller is used to control the tunable capacitor to be worked with a capacitance.
8. mobile terminal according to claim 7, also includes：
Processor, the processor is used to be operated in Tx patterns when the mobile terminal, by the controller control described in can
Capacitive load first is adjusted to be worth, to cause the communication module by the antenna with highest radiation efficiency radiation signal；
When the mobile terminal is operated in Rx patterns, the tunable capacitor is controlled to load second value by the controller, to cause institute
State communication module and radiation signal is received with highest radiation efficiency by the antenna.
9. mobile terminal according to claim 8, also includes：
First place, is connected with first earth point in the antenna；And
Second place, is connected with the tunable capacitor in the antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148325.8A CN106935978A (en) | 2017-03-13 | 2017-03-13 | Antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148325.8A CN106935978A (en) | 2017-03-13 | 2017-03-13 | Antenna and mobile terminal |
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| Publication Number | Publication Date |
|---|---|
| CN106935978A true CN106935978A (en) | 2017-07-07 |
Family
ID=59432650
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710148325.8A Pending CN106935978A (en) | 2017-03-13 | 2017-03-13 | Antenna and mobile terminal |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017300A (en) * | 2008-04-28 | 2011-04-13 | 维斯普瑞公司 | Tunable duplexing antenna and methods |
| CN201838712U (en) * | 2010-07-27 | 2011-05-18 | 东莞台霖电子通讯有限公司 | Frequency-adjustable circulation antenna structure |
| CN102067624A (en) * | 2008-06-23 | 2011-05-18 | 诺基亚公司 | Tunable antenna arrangement |
| CN103390796A (en) * | 2013-07-29 | 2013-11-13 | 上海安费诺永亿通讯电子有限公司 | Mobile phone terminal antenna |
| WO2015100654A1 (en) * | 2013-12-31 | 2015-07-09 | 华为终端有限公司 | Loop antenna and mobile terminal |
| CN205406300U (en) * | 2016-03-07 | 2016-07-27 | 珠海格力电器股份有限公司 | Electric capacity device and active antenna can be regulated and control and communication terminal is moved |
| CN105896083A (en) * | 2015-12-22 | 2016-08-24 | 乐视移动智能信息技术（北京）有限公司 | Tunable antenna and mobile terminal |
| CN106486773A (en) * | 2016-09-30 | 2017-03-08 | 努比亚技术有限公司 | A kind of mobile terminal and its antenna structure |
-
2017
- 2017-03-13 CN CN201710148325.8A patent/CN106935978A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017300A (en) * | 2008-04-28 | 2011-04-13 | 维斯普瑞公司 | Tunable duplexing antenna and methods |
| CN102067624A (en) * | 2008-06-23 | 2011-05-18 | 诺基亚公司 | Tunable antenna arrangement |
| CN201838712U (en) * | 2010-07-27 | 2011-05-18 | 东莞台霖电子通讯有限公司 | Frequency-adjustable circulation antenna structure |
| CN103390796A (en) * | 2013-07-29 | 2013-11-13 | 上海安费诺永亿通讯电子有限公司 | Mobile phone terminal antenna |
| WO2015100654A1 (en) * | 2013-12-31 | 2015-07-09 | 华为终端有限公司 | Loop antenna and mobile terminal |
| CN105896083A (en) * | 2015-12-22 | 2016-08-24 | 乐视移动智能信息技术（北京）有限公司 | Tunable antenna and mobile terminal |
| CN205406300U (en) * | 2016-03-07 | 2016-07-27 | 珠海格力电器股份有限公司 | Electric capacity device and active antenna can be regulated and control and communication terminal is moved |
| CN106486773A (en) * | 2016-09-30 | 2017-03-08 | 努比亚技术有限公司 | A kind of mobile terminal and its antenna structure |
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Application publication date: 20170707 |