CN109728417A - Antenna and its control method and electronic equipment - Google Patents
Antenna and its control method and electronic equipment Download PDFInfo
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- CN109728417A CN109728417A CN201811641684.8A CN201811641684A CN109728417A CN 109728417 A CN109728417 A CN 109728417A CN 201811641684 A CN201811641684 A CN 201811641684A CN 109728417 A CN109728417 A CN 109728417A
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Abstract
Present disclose provides a kind of antennas, comprising: ontology has at least one access point；At least one ennation；At least one switch, is arranged between the ontology and the ennation；Wherein, it at least one described switch conduction or disconnects to change the resonance mode of the antenna.The disclosure additionally provides a kind of method of controlling antenna and a kind of electronic equipment.
Description
Technical field
This disclosure relates to a kind of antenna and its control method and electronic equipment.
Background technique
Radio system can carry out the transmission and reception of information by antenna.Specifically, antenna pair can be passed through
The attribute (amplitude, frequency, phase or the pulse width of such as wave) of the electromagnetic wave of transmission carries out the modulation of system, to send and connect
Receive radio wave.
Existing antenna is usually turned to a kind of radiation pattern of fixation, the using effect under different application scenarios by tool
Differ larger.
Summary of the invention
An aspect of this disclosure provides a kind of antenna that different application scenarios are adapted to a variety of resonance modes,
Include: ontology, at least one ennation and at least one switch, the ontology have at least one access point, described at least one
A switch is arranged between the ontology and the ennation, wherein at least one described switch conduction is disconnected to change
Become the resonance mode of the antenna, therefore, the resonance mode of the antenna can be switched under different application scenarios, so that institute
Antenna is stated suitable for current application scenarios.
Optionally, the switch includes switching diode, and the on and off of diode is controlled by DC offset voltage
State.
Optionally, the switching diode may include RF switch diode, and correspondingly, the antenna can also wrap
Include: capacitance and DC bias source, wherein the capacitance is set at following at least one: RF switch diode it
Between, at the ground connection of the ontology or at the ground connection of the ennation, the DC bias source at least one radio frequency for opening
Close diode apply Dc bias, the capacitance for obstruct the DC bias source and/or barrier DC bias source to
RF switch diode except at least one corresponding described RF switch diode applies Dc bias.It can pass through in this way
Apply the mode of Dc bias at least partly RF switch diode of antenna to change the resonance mode of the antenna, and not
It will lead to and interfered with each other between RF switch diode, antenna will not be burnt or electronics is set because DC bias source is directly grounded
It is standby.
Optionally, the resonance mode comprises at least one of the following: the resonance of corresponding 1/4 resonance wavelength of inverted F shaped antenna
The corresponding resonance mode of resonance mode, loop aerial, the dipole antenna pair of corresponding 3/4 resonance wavelength of mode, inverted F shaped antenna
Therefore the resonance mode answered can at least switch between these types of resonance mode.
Optionally, at least one described switch includes the switch combination conduction mode of specified number, and mould is connected in each combination
Formula corresponds to a kind of resonance mode, and correspondingly, the antenna can also include: detection circuit, received for detecting the antenna
Signal strength, in order to make the antenna be in the reception strongest resonant mode of signal by switching switch combination conduction mode
State.It in this way can be with real time scan antenna received signal intensity, if it find that than received signal intensity under current resonance mode
Stronger resonance mode can then automatically switch under the stronger resonance mode of signal strength, more intelligence and effect is good.
Optionally, the ontology may include inverted-F conductor, and/or, at least one described ennation includes multiple
Linear conductor is connected between multiple linear conductors respectively by a RF switch diode.Correspondingly, the switch combination is led
Logical mode may include following three kinds of switch combination conduction modes: in the first switch combination conduction mode, in response to all
RF switch diode is in off state, and the resonance mode of the antenna corresponds to corresponding 1/4 resonance wavelength of inverted F shaped antenna
Resonance mode, in the conductive state in response to all RF switch diodes, the resonance mode of the antenna corresponds to inverted F shaped antenna
The resonance mode of corresponding 3/4 resonance wavelength.In second of switch combination conduction mode, in response to all two poles of RF switch
Pipe is in off state, and the resonance mode of the antenna corresponds to the resonance mode of corresponding 1/4 resonance wavelength of inverted F shaped antenna, rings
Should be in the conductive state in all RF switch diodes, the resonance mode of the antenna corresponds to the resonance mode of loop aerial.
In the third switch combination conduction mode, be in off state in response to all RF switch diodes, the antenna it is humorous
Vibration mode corresponds to the resonance mode of corresponding 1/4 resonance wavelength of inverted F shaped antenna, at first part's RF switch diode
In on state, the resonance mode of the antenna corresponds to the resonance mode of corresponding 3/4 resonance wavelength of inverted F shaped antenna, and, it rings
Should be in the conductive state in second part RF switch diode, the resonance mode of the antenna corresponds to the resonant mode of loop aerial
State, wherein the union of first part's RF switch diode and the second part RF switch diode is all penetrates
Frequency switching diode.Due to corresponding 3/4 resonance of resonance mode, inverted F shaped antenna of corresponding 1/4 resonance wavelength of inverted F shaped antenna
The resonance mode of wavelength and the resonance mode of loop aerial be by largely verifying the resonance mode with preferable performance, also,
The corresponding radiation pattern of these three resonance modes and blind area difference are larger, therefore, switch under these three resonance modes
Substantially it can satisfy the demand under various application scenarios to antenna, and the design that can be switched under three kinds of resonance modes is difficult
It spends also within an acceptable range.
Optionally, the antenna can also include isolation inductance, which can be set in the DC bias source
Nearly antenna end.It, can also be in this way it is possible to prevente effectively from the energy loss generated because radiofrequency signal enters DC power supply route
Avoid antenna impedance mismatch.
Another aspect of the disclosure provides a kind of method of controlling antenna, described for controlling antenna as described above
Method may include operating as follows:.In a kind of mode of operation, by controlling at least one switch conduction or disconnecting to change
The resonance mode of antenna is stated, resonance mode switching can be carried out according to user demand in this way.It is first in another mode of operation
First, by controlling at least one switch conduction or disconnecting to obtain antenna received signal strength under different resonance modes,
It obtains receiving the strongest resonance mode of signal, then, controls the antenna and be in the reception strongest resonance mode of signal, in this way may be used
To switch the resonance mode of antenna by controlling at least one switch conduction or disconnection, so that antenna, which is in, receives signal
It works under strongest resonance mode.In another mode of operation, the antenna includes the switch combination conducting mould of specified number
Formula, each combination conduction mode correspond to a kind of resonance mode, combine conduction mode by controlling the antenna change-over switch so that
The antenna, which is in, receives the strongest resonance mode of signal, and this method may include: firstly, mould is connected by switching switch combination
Formula obtains receiving the strongest resonance mode of signal to obtain antenna received signal strength under different resonance modes, then,
It controls the antenna and is in the reception strongest resonance mode of signal, due to having preset several switch combination conduction modes, often
A kind of corresponding preferably resonance mode of kind switch combination conduction mode, reduces and obtains the strongest difficulty for receiving signal (such as nothing
It is resonance mode which kind of switch combination mode, which need to be reattempted to), facilitate the switch speed for promoting antenna.
Optionally, the switch is RF switch diode, and correspondingly, the switching switch combination conduction mode can wrap
It includes: firstly, then determination the first resonance mode to be switched to determines corresponding switching group according to first resonance mode
Conduction mode is closed, then, gives each RF switch diode to apply Dc bias respectively by DC bias source or does not apply direct current
The mode of bias realizes the corresponding switch combination conduction mode.
Another aspect of the disclosure provides a kind of electronic equipment, which may include: day as described above
Line, one or more processors and computer readable storage medium, wherein the computer readable storage medium is for storing
Side as described above may be implemented when being executed by the processor in one or more computer programs, the computer program
Method.
Another aspect of the present disclosure provides a kind of computer readable storage medium, is stored with computer executable instructions,
Described instruction is when executed for realizing method as described above.
Another aspect of the present disclosure provides a kind of computer program, and the computer program, which includes that computer is executable, to be referred to
It enables, described instruction is when executed for realizing method as described above.
Detailed description of the invention
In order to which the disclosure and its advantage is more fully understood, referring now to being described below in conjunction with attached drawing, in which:
Figure 1A diagrammatically illustrates the structural schematic diagram of the inverted F shaped antenna of the prior art；
Figure 1B diagrammatically illustrates radiation pattern and the blind area of the ideal dipole antenna of the prior art；
The ideal half-wave dipole, inverted F shaped antenna and increasing that Fig. 1 C diagrammatically illustrates the prior art are grounded the reversed F-typed of size
The schematic diagram of antenna and its radiation pattern；
Fig. 2A is diagrammatically illustrated according to the antenna and its control method of the embodiment of the present disclosure and the applied field of electronic equipment
Scape；
Fig. 2 B diagrammatically illustrates the meter for being suitable for antenna and its control method and electronic equipment according to the embodiment of the present disclosure
Calculation machine system architecture；
Fig. 3 A diagrammatically illustrates the structure chart of the antenna according to the embodiment of the present disclosure；
Fig. 3 B diagrammatically illustrates the structure chart of the antenna according to another embodiment of the disclosure；
Fig. 3 C diagrammatically illustrates the structure chart of the antenna according to another embodiment of the disclosure；
Fig. 3 D diagrammatically illustrates the structure chart of the antenna according to another embodiment of the disclosure；
Fig. 3 E diagrammatically illustrates the antenna radiation patterns analogous diagram according to the embodiment of the present disclosure；
Fig. 3 F, which is diagrammatically illustrated, promotes comparison diagram according to the antenna horizontal plane 2D radiation direction of the embodiment of the present disclosure；
Fig. 4 diagrammatically illustrates the flow chart of the method for controlling antenna according to the embodiment of the present disclosure；And
Fig. 5 diagrammatically illustrates the block diagram of the electronic equipment according to the embodiment of the present disclosure.
Specific embodiment
Hereinafter, will be described with reference to the accompanying drawings embodiment of the disclosure.However, it should be understood that these descriptions are only exemplary
, and it is not intended to limit the scope of the present disclosure.In the following detailed description, to elaborate many specific thin convenient for explaining
Section is to provide the comprehensive understanding to the embodiment of the present disclosure.It may be evident, however, that one or more embodiments are not having these specific thin
It can also be carried out in the case where section.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid
Unnecessarily obscure the concept of the disclosure.
Term as used herein is not intended to limit the disclosure just for the sake of description specific embodiment.It uses herein
The terms "include", "comprise" etc. show the presence of the feature, step, operation and/or component, but it is not excluded that in the presence of
Or add other one or more features, step, operation or component.
There are all terms (including technical and scientific term) as used herein those skilled in the art to be generally understood
Meaning, unless otherwise defined.It should be noted that term used herein should be interpreted that with consistent with the context of this specification
Meaning, without that should be explained with idealization or excessively mechanical mode.
It, in general should be according to this using statement as " at least one in A, B and C etc. " is similar to
Field technical staff is generally understood the meaning of the statement to make an explanation (for example, " system at least one in A, B and C "
Should include but is not limited to individually with A, individually with B, individually with C, with A and B, with A and C, have B and C, and/or
System etc. with A, B, C).Using statement as " at least one in A, B or C etc. " is similar to, generally come
Saying be generally understood the meaning of the statement according to those skilled in the art to make an explanation (for example, " having in A, B or C at least
One system " should include but is not limited to individually with A, individually with B, individually with C, with A and B, have A and C, have
B and C, and/or the system with A, B, C etc.).
Shown in the drawings of some block diagrams and/or flow chart.It should be understood that some sides in block diagram and/or flow chart
Frame or combinations thereof can be realized by computer program instructions.These computer program instructions can be supplied to general purpose computer,
The processor of special purpose computer or other programmable data processing units, so that these instructions are when executed by this processor can be with
Creation is for realizing function/operation device illustrated in these block diagrams and/or flow chart.
Figure 1A diagrammatically illustrates the structural schematic diagram of the inverted F shaped antenna of the prior art.
As shown in Figure 1A, common inverted F shaped antenna design is currently most common on the mobile terminals such as laptop, mobile phone
Antenna type, it is obtained after carrying out deformation design based on dipole antenna reduction size, replaces half with ground plane
One arm of wave oscillator, and another crook of the arm of oscillator is folded against proximity ground and further decreases antenna headroom.Because of the oscillator after bending
Arm causes capacitance to earth to increase closer to ground plane, needs to increase ground connection perception matching and offsets part capacitive reactance, therefore is formed as word
Female F falls down the same structure and gains the name.
Figure 1B diagrammatically illustrates radiation pattern and the blind area of the ideal dipole antenna of the prior art.Fig. 1 C is schematic
Show the ideal half-wave dipole of the prior art, the inverted F shaped antenna of inverted F shaped antenna and increasing ground connection size and its radiation pattern
Schematic diagram.
As illustrated in figures ib and 1 c, in traditional passive Antenna Design, all characteristics of antenna are all after completing the design
It is changeless, and exist with certain dead angle, even most widely used classics dipole antenna is radiating
Also dead angle (NULL) exists on field pattern.And in the Antenna Design of mobile terminal, because working frequency is high, designs and answer
Increasingly complex with environment, antenna radiation patterns can become more irregular, as shown in Figure 1 C.In complicated application scenarios and ground connection
Under the influence of face, it will appear more dead angles or the lower region of the ratio of gains on the far-field radiation field pattern of antenna, these
Dead angle is in the use of terminal if encountering weak signal environment will lead to connectivity problem.
To solve the above-mentioned problems, present disclose provides a kind of antenna and its control method and electronic equipment, the antenna packets
Ontology, ennation and switch are included, switch is arranged between the ontology and the ennation, therefore, can be by least
One switch conduction is disconnected to change the resonance mode of the antenna, to cope under complicated application scenarios to antenna performance
Demand.
Fig. 2A is diagrammatically illustrated according to the antenna and its control method of the embodiment of the present disclosure and the applied field of electronic equipment
Scape.
As shown in the left figure of Fig. 2A, user is under more spacious environment, and signal strength is higher, can be smooth it is upper
Net chats, sees video etc..As shown in the middle graph of Fig. 2A, user is in the weaker scene of upper left side signal, if user is whole
The antenna at end is dead angle in corresponding region (upper left side of user), then signal strength is poor, it may be necessary to change a position
Preferable signal strength could be obtained by setting.As shown in the right figure of Fig. 2A, user is in the weaker scene of upper right side signal, if
The corresponding region of the antenna of user terminal is dead angle, then signal strength is poor, and also needing to change a position could obtain
Preferable signal strength.The scheme that the disclosure provides is exactly in order to enable user is in above-mentioned various scenes, just without change place
Preferable signal strength can be obtained to promote user experience.
Fig. 2 B diagrammatically illustrates the meter for being suitable for antenna and its control method and electronic equipment according to the embodiment of the present disclosure
Calculation machine system architecture.It should be noted that be only the example that can apply the system architecture of the embodiment of the present disclosure shown in Fig. 2 B, with
The technology contents of the disclosure are helped skilled in the art to understand, but are not meant to that the embodiment of the present disclosure may not be usable for other
Equipment, system, environment or scene.
As shown in Figure 2 B, system architecture 100 may include terminal device 101,102,103, network according to this embodiment
104 and server 105.Network 104 between terminal device 101,102,103 and server 105 to provide communication link
Medium.Network 104 may include various connection types, such as wired, wireless communication link or fiber optic cables etc..
User can be used terminal device 101,102,103 and be interacted by network 104 with server 105, to receive or send out
Send message etc..Various telecommunication customer end applications, such as the application of shopping class, net can be installed on terminal device 101,102,103
(merely illustrative) such as the application of page browsing device, searching class application, instant messaging tools, mailbox client, social platform softwares.
Terminal device 101,102,103 can be the various electronic equipments of wireless networking, including but not limited to smart phone,
Tablet computer, pocket computer on knee, desktop computer, router and virtual reality device etc..
Server 105 can be to provide the server of various services, such as utilize terminal device 101,102,103 to user
The website browsed provides the back-stage management server (merely illustrative) supported.Back-stage management server can be to the use received
The data such as family request analyze etc. processing, and by processing result (such as according to user's request or the webpage of generation, believe
Breath or data etc.) feed back to terminal device.
It should be noted that antenna provided by the embodiment of the present disclosure generally can be set in terminal device 101,102,
In 103, method of controlling antenna provided by the embodiment of the present disclosure generally can be adapted in terminal device 101,102,103.It answers
The number of the understanding, terminal device, network and server in Fig. 2 B is only schematical.According to needs are realized, can have
There are any number of terminal device, network and server.
Fig. 3 A diagrammatically illustrates the structure chart of the antenna according to the embodiment of the present disclosure.
As shown in Figure 3A, the antenna may include ontology, at least one ennation and at least one switch, wherein institute
Ontology is stated at least one access point, at least one described switch is arranged between the ontology and the ennation,
At least one described switch conduction is disconnected to change the resonance mode of the antenna.
Wherein, the ontology can on printed circuit board Line-shaped conductor, there is certain geometry knot on printed circuit board
The line style conductor (such as F type conductor, ring shaped conductor) of structure.Further, it is also possible to be simple conductor bar, tool it is effigurate
Conductor (such as F shape antenna, " rich " font antenna, pot type antenna) etc..The type phase of the type of the ennation and the ontology
Together, when being the Line-shaped conductor on printed circuit board such as the ontology, the ennation is also the conductor on printed circuit board (can be with
For linear, face shape etc.).
The switch can switch for electrical type, or mechanical switch.For example, working as the ontology and the extension
When body is the conductor on printed circuit board, the switch can switch for electrical type, such as diode etc. can be inclined by direct current
The on and off state for setting voltage (abbreviation Dc bias, DC Bias Tee) control diode, further, it is also possible to be three poles
Pipe etc., such as by applying control signal to grid to control opening or off for triode.In another example when the ontology and described
Whens ennation is conductor bar etc., the switch can switch for electrical type switch or mechanical switch, such as relay, guillotine type
Etc., if can for changing between ontology and ennation or between ennation and ennation conducting and off-state be
Can, it will not enumerate herein.
Specifically, the switching diode may include RF switch diode, correspondingly, the antenna further include: every
Straight capacitor and DC bias source, the capacitance are set at following at least one: between RF switch diode, the ontology
Ground connection at or the ground connection of the ennation at, wherein the DC bias source is for giving at least one two pole of RF switch
Pipe applies Dc bias, and the capacitance is for obstructing the DC bias source and/or barrier DC bias source to corresponding
RF switch diode except at least one described RF switch diode applies Dc bias.Since antenna sends and receivees
Signal be high-frequency signal, in order to reduce influence of the electronic switch to signal, can using RF switch diode it is (also referred to as micro-
Wave diode).It, can be by applying to RF switch diode in order to control the on and off state of RF switch diode
Positive bias, still, the bias of application cannot have an impact the signal of antenna, therefore, can by Dc bias and every
Straight capacitor is applied in combination, and to reach through bias voltage control RF switch diode conductor or cut-off, and can pass through blocking electricity
Holding barrier and being biased influences to aerial signal bring, or influence to bring between different radio frequency switching diode (every
Straight capacitor is off state to direct current signal, is on state to high-frequency signal, such as aerial signal).It should be noted that due to
On and off state is controlled by applying Dc bias to RF switch diode, and antenna is conductor, when antenna needs
When ground connection, to avoid DC bias source or antenna because short circuit is burnt, need that capacitance, the capacitance pair is arranged in grounding point
Direct current signal cut-off, but be conducting to high-frequency signal, therefore do not influence antenna ground.
In one embodiment, the resonance mode comprises at least one of the following: corresponding 1/4 resonance wave of inverted F shaped antenna
The corresponding resonance mode of resonance mode, loop aerial, the dipole of long resonance mode, corresponding 3/4 resonance wavelength of inverted F shaped antenna
The corresponding resonance mode of sub-antenna.
For example, the ontology includes inverted-F conductor, and/or, at least one described ennation includes multiple linear leads
Body is connected between multiple linear conductors respectively by a RF switch diode.
In a specific embodiment, (high-performance wireless is directed to by introducing RF switch diode in Antenna Design
The low capacitive reactance PIN diode of Low ESR of switch application design, such as Skyworks SMP1320), utilize RF switch diode
On and off state control ontology and ennation be turned on or off, make size, the sky of antenna radiator (current path)
Between position, on-off path etc. change, the switching of different type or different resonance modes is realized on an Antenna Design, with
Realize the adjustment to antenna radiation patterns.For example annular is switched to from symmetrically or non-symmetrically dipole antenna under same environment
(LOOP) antenna configurations can generate great changes or resonance mode on radiation pattern and be adjusted on 3 frequency multiplication resonance from fundamental wave
(resonance wavelength is adjusted to 3/4 from 1/4), its greatest irradiation direction meeting known in the radiation pattern analysis to Typical symmetrical oscillator
Simultaneously there is secondary lobe in 45 degree or sos of offset, and changing for radiation pattern is very violent, it can be achieved that effective adjustment to radiation pattern.Emulation
And field data show, switch antenna radiation patterns in a certain range can effectively promotion signal intensity be more than (10 times of 10dB
Promoted) more than it is even more.
It should be noted that usually inverted F shaped antenna belongs to asymmetric dipole antenna, half-wave dipole is replaced with ground plane
A brachium, inverted f structure is its remaining arm, and by the adjustment to inverted f structure, such as plus match circuit, bending
Deformation etc. reduces size again, so antenna type can be calculated comprising dipole (dipole) antenna.Or directly with complete half
Wave element antenna as basis be changed it is also possible (wherein ground plane is only used as ground plane, is not involved in aerial radiation, and
And influence whether the radiation pattern etc. of antenna).But since dipole antenna size is one times of (both arms and list of inverted F shaped antenna
The length vs of arm), so in the case where the built-in space of the mobile terminal devices such as mobile phone or computer is natively very nervous, very
It is few to use.But better than (reversed F-typed size compression will lead to sacrifice to inverted F shaped antenna for the efficiency of half-wave dipole, field pattern covering etc.
Significant portion of antenna performance), in the similar equipment using external bar antenna such as router (to antenna size small form factor requirements
Without too stringent) it can use, at these using upper, the principle of this programme can also be general.
In addition, technical solution provided by the present disclosure can also be applied on slot antenna (slot antenna), for example, passing through
The on or off state of the switch of different location thus can change the resonance mode of antenna to change gap length.Tool
Body, the tuning (fine tune being carried out to gap length, it is easier to realize) of resonance frequency, Yao Shixian field pattern may be implemented first
Adjustment can be realized by adjusting the size in gap, such as by gap such as in the transformation of reversed F-typed upper 1/4 wavelength to 3/4
Size become original three times.
In another embodiment, at least one described switch includes the switch combination conduction mode of specified number, often
A switch combination conduction mode corresponds to the state being turned on or off respectively switched under a kind of resonance mode.Since antenna needs work
Under resonance mode, not the conductor of any shape can meet resonance mode, therefore, can choose several resonant modes in advance
State is that corresponding switch combination conduction mode is arranged in every kind of resonance mode, thus can be in order between a variety of resonance modes
It switches over.
Fig. 3 B diagrammatically illustrates the structure chart of the antenna according to another embodiment of the disclosure.
As shown in Figure 3B, the ontology is reversed F-typed conductor, is connected by RF switch diode with ennation, at least one
When a ennation is connected with reversed F-typed conductor, so that inverted F shaped antenna switches to 3/4 resonance wave from the resonance mode of 1/4 resonance wavelength
Long resonance mode.
Specifically, it is in off state in response to all RF switch diodes, the resonance mode of the antenna corresponds to inverted f
The resonance mode of corresponding 1/4 resonance wavelength of type antenna, the day in the conductive state in response to all RF switch diodes
The resonance mode of line corresponds to the resonance mode of corresponding 3/4 resonance wavelength of inverted F shaped antenna.It in this way can be by controlling all radio frequencies
The on or off state of switching diode is easily to switch the resonance mode of antenna.It should be noted that only showing in Fig. 3 B
Example goes out a RF switch diode, and still, ennation can be split as multiple sub- ennations, can be between multiple sub- ennations
It is connected by RF switch diode.
Fig. 3 C diagrammatically illustrates the structure chart of the antenna according to another embodiment of the disclosure.
As shown in Figure 3 C, the ontology is reversed F-typed conductor, is connected by RF switch diode with ennation, ennation
Be connected with reversed F-typed conductor and ennation be grounded when so that the type of antenna switches to annular from the resonance mode of inverted F shaped antenna
The resonance mode of antenna.
Specifically, it is in off state in response to all RF switch diodes, the resonance mode of the antenna corresponds to inverted f
The resonance mode of corresponding 1/4 resonance wavelength of type antenna, and, it is in the conductive state in response to all RF switch diodes,
The resonance mode of the antenna corresponds to the resonance mode of loop aerial.It in this way can be by controlling all RF switch diodes
For on or off state easily to switch the type of antenna, the amplitude of the radiation pattern adjusted in this way is bigger.
Fig. 3 D diagrammatically illustrates the structure chart of the antenna according to another embodiment of the disclosure.
The ontology can be reversed F-typed conductor, be connected by RF switch diode with ennation, between multiple ennations
It is connected by RF switch diode, by controlling the on or off state of multiple RF switch diodes, so that antenna
Type can the resonance mode of 1/4 resonance wavelength of inverted F shaped antenna, the resonance mode of 3/4 resonance wavelength of inverted F shaped antenna and
It is switched between the resonance mode of loop aerial.
Specifically, it is in off state in response to all RF switch diodes, the resonance mode of the antenna corresponds to inverted f
The resonance mode of corresponding 1/4 resonance wavelength of type antenna, institute in the conductive state in response to first part's RF switch diode
The resonance mode for stating antenna corresponds to the resonance mode of corresponding 3/4 resonance wavelength of inverted F shaped antenna, and, in response to second part
RF switch diode is in the conductive state, and the resonance mode of the antenna corresponds to the resonance mode of loop aerial, wherein described
The union of first part's RF switch diode and the second part RF switch diode is all RF switch diodes.
It in this way can be by controlling the on or off state of RF switch diode to switch three kinds of antenna resonance mode.
In a specific embodiment, as shown in Figure 3D, the ontology is reversed F-typed conductor B0, at least one described extension
Body includes the first linear conductor B1, the second linear conductor B2, third linear conductor B3, the 4th linear conductor B4, the 5th linear leads
Body B5 and hexagram conductor B6, at least one described switch include the first RF switch diode D1 of positive access, second
RF switch diode D2, third RF switch diode D3, the 4th RF switch diode D4, the 5th RF switch diode
D5, first capacitor C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4 and the 5th capacitor C5.In order to avoid DC bias source
The signal of antenna is impacted, the antenna can also include isolation inductance, which can be set in the direct current
Between bias generator and the antenna, for example, the inductance that DC voltage is linked into before antenna by 47nH (or other values) carry out every
From, isolation inductance will be in the position near antenna, and otherwise radiofrequency signal can enter DC bias source route generation energy loss,
It is also possible that antenna impedance mismatch.
Wherein, the first RF switch diode D1, the second RF switch diode D2, the third radio frequency are opened
Close diode D3, the 4th RF switch diode D4 and the 5th RF switch diode D5 anode respectively with direct current
Bias generator is connected, and the top of the inverted-F conductor B0 is grounded via the first capacitor C1, the centre of the inverted-F conductor B0
End is access point and to be connected with the first DC bias source DC1, the tail end of the inverted-F conductor B0 respectively with the second capacitor C2 one
End is connected with the anode of the first RF switch diode D1, the other end of the second capacitor C2 and the first linear conductor B1
One end be connected, the other end of the first linear conductor B1 is connected with the anode of the second RF switch diode D2, described the
The cathode of two RF switch diode D2 is connected with one end of the second linear conductor B2, and the second linear conductor B2's is another
One end is connected with the cathode of the third RF switch diode D3, the third RF switch diode D3 anode with it is described
One end of third linear conductor B3 is connected, one end phase of the other end of the third linear conductor B3 and the third capacitor C3
Even, the other end of the third capacitor C3 is connected with the cathode of the first RF switch diode D1, first RF switch two
The cathode of pole pipe D1 is connected with one end of the 4th linear conductor B4, the other end of the 4th linear conductor B4 and described the
One end of four capacitor C4 is connected, and the other end of the 4th capacitor C4 is connected with one end of the 5th linear conductor B5, described
The other end of 5th linear conductor B5 is connected with the anode of the 4th RF switch diode D4, the 4th RF switch two
The cathode of pole pipe D4 is connected with one end of the hexagram conductor B6, and the other end of the hexagram conductor B6 is via described
5th capacitor C5 ground connection.The first linear conductor B1 is also connected via the first isolation inductance L1 with DC bias source DC2, described
Third linear conductor B3 is also connected via the second isolation inductance L2 with DC bias source DC2, and the 5th linear conductor B5 is also passed through
It is connected by third isolation inductance L3 with DC bias source DC3.
DC1, DC2, DC3 can be separately connected three pins of control chip, by whether controlling each pin of chip controls
Dc bias is provided.It should be noted that the above-mentioned control chip for providing DC bias source can be and be individually for antenna and match
The control chip set can also be the DC bias source that wireless module provides, be also possible to some chip of electronic equipment to day
The DC bias source that line provides, it is not limited here.
In the present embodiment, antenna shown in Fig. 3 D has a variety of resonance modes to have multiple radiation patterns, is meeting
Radiation pattern can be changed by switching antenna condition when to blind area, the blind area on radiation pattern is made to be switched to other directions,
To promote the transmitting and receptivity of antenna system in a certain direction, and by cooperating real-time perfoming adjustment with system end,
Guarantee the performance being wirelessly connected.The on and off different to every group of RF switch diode is realized by adjusting Dc bias
The control of state, makes antenna radiator have variform, and every kind of form Design corresponds to different resonance modes.Selective radiation field
The resonance mode that type changes greatly, such as 1/4 wave resonance inverted F shaped antenna (at least D1 and D2 is in off state in corresponding diagram 3D)
With 3/4 wave resonance inverted F shaped antenna (D1 and D4 is in off state in corresponding diagram 3D, and D2 and D3 are in the conductive state), antenna
Most intense radiation direction can have apparent offset adjustment, can have different radiation pattern coverings.Therefore some is being encountered
In the state of dead angle, switching antenna resonance mode adjustment radiation pattern can effectively avoid the dead angle.If worked as
Under preceding application scenarios, 1/4 wave resonance inverted F shaped antenna and 3/4 wave resonance inverted F shaped antenna all work in dead angle, also
The resonance of loop aerial (D1 and D4 are in the conductive state in corresponding diagram 3D, and D2 and D3 are in off state) can be attempted to handoff to
Mode.
Fig. 3 E diagrammatically illustrates the antenna radiation patterns analogous diagram according to the embodiment of the present disclosure.
As shown in FIGURE 3 E, left side figure is 1/4 wavelength (λ) inverted F shaped antenna, and from far field, field pattern figure be can see due to being connect
The influence on ground, greatest irradiation direction is in 30 ° and 150 ° directions of vertical plane.Middle graph controls D1 and D4 by DC Bias T
In off state, control D2 and D3 is in the conductive state, and antenna resonance mode becomes 3/4 λ inverted F shaped antenna, in almost symmetry
In the analysis of oscillator it is found that under the resonance mode of 3/4 λ, radiation pattern will appear secondary lobe and greatest irradiation direction deviates 45 °,
Under the resonance mode for also showing 3/4 λ in simulation result, greatest irradiation direction is appeared on 90 ° of directions of vertical plane, with left figure phase
Than realizing apparent radiation pattern adjustment effect.D1 and D4 are in the conductive state in right figure, and control D2 and D3 is in off state,
Antenna resonance mode becomes the resonance mode of loop aerial, and loop aerial and inverted F shaped antenna are based on magnetic dipole and electricity respectively
The two distinct types of resonance principle of dipole, so the radiation pattern variation of antenna becomes apparent, right figure is compared with left figure, most
Large radiation direction is adjusted to 90 ° and 270 ° from 0 ° of horizontal plane and 180 °, and the radiation direction on horizontal plane is almost complementary.
Fig. 3 F, which is diagrammatically illustrated, promotes comparison diagram according to the antenna horizontal plane 2D radiation direction of the embodiment of the present disclosure.
As illustrated in Figure 3 F, by adjusting antenna resonance mode, compared with single resonance mode antenna, in certain dead angles
On the promotion of radiance respectively reach 5dB, 6dB, 10dB and 15dB, that is to say, that the spoke on certain dead angles
The 10dB that has been lifted beyond of performance is penetrated, regulating effect clearly, effectively reduces dead angle.
In another embodiment, the antenna further include: detection circuit is strong for detecting the antenna received signal
Degree, in order to make the antenna be in the reception strongest resonance mode of signal by switching switch combination conduction mode.Specifically
Ground can cooperate wireless module end to the analyses of the information such as received signal strength (RSSI) and judgement to control antenna resonance mould
State is scanned entire antenna system in different modes in real time, and receptivity is automatically selected according to information such as RSSI most
The intelligent antenna system of adaptive ability may be implemented in excellent resonance mode in this way.Wherein it is possible to which RSSI information is sent to
Network interface card is determined by network interface card using which kind of resonance mode, for example, the field strength of received signal strength is strongest in one section of sweep time
Signal, alternatively, starting to carry out signal scanning, first signal strength found is full when signal strength is unsatisfactory for network interface card demand
The signal of sufficient network interface card demand, in addition, can also be the strongest information of energy other than the strongest signal of above-mentioned field strength.
The antenna that the disclosure provides has the advantage that, firstly, designing several groups of difference radiation patterns on single antenna, leads to
Crossing signal control may be implemented adjust automatically and the adaptive smart antenna system of optimal performance is kept to design, to cope with complexity
Working environment, secondly, the resonance mode switching of antenna, control easy to accomplish are realized by RF switch diode, and loss is low,
In addition, Antenna Design is flexible, system application can be limited according to the adjustable antenna type of user demand unrestricted choice and number of states
System is few, in addition, antenna structure is simple, it is functional, it is easy to realize and answer on the mobile communication terminals such as laptop, mobile phone
With.
Correspondingly, the disclosure additionally provides the control method for above-mentioned antenna.
Fig. 4 diagrammatically illustrates the flow chart of the method for controlling antenna according to the embodiment of the present disclosure.
As shown in figure 4, the method for controlling antenna, for controlling antenna as described above, the method may include following behaviour
Make.
By controlling at least one switch conduction or disconnecting to change the resonance mode of the antenna.
For example, the antenna is the antenna of mobile phone, the related application that control switch is turned on or off is installed in mobile phone, it can be with
Some switch conduction or disconnection are controlled, in the application to change the resonance mode of the antenna.In another example the antenna is router
External antenna, the resonance mode of the antenna can be changed by way of opening or off mechanical switch manually.
In one embodiment, described by controlling at least one switch conduction or disconnecting to change the humorous of the antenna
Mode of shaking may include operating as follows.
Firstly, being received by controlling at least one switch conduction or disconnecting with obtaining the antenna under different resonance modes
Signal strength obtains receiving the strongest resonance mode of signal.
Then, it controls the antenna and is in the reception strongest resonance mode of signal.
In another embodiment, the antenna includes the switch combination conduction mode of specified number, and each combination is led
Logical mode correspond to a kind of resonance mode, combines conduction mode by controlling the antenna change-over switch so that the antenna is in connecing
The collection of letters number strongest resonance mode, it is described by controlling at least one switch conduction or disconnecting to change the resonant mode of the antenna
State may include operating as follows.
In operation S401, received by switching switch combination conduction mode with obtaining the antenna under different resonance modes
Signal strength obtains receiving the strongest resonance mode of signal.
In operation S402, controls the antenna and be in the reception strongest resonance mode of signal.
In a specific embodiment, the switch is RF switch diode, and correspondingly, the switching switch combination is led
Logical mode may include operating as follows.
Firstly, determination the first resonance mode to be switched to.
For example, the resonance mode that user wishes to handover to, or in carrying out received signal strength scanning process, determination is wanted
Next resonance mode of scanning.
Then, corresponding switch combination conduction mode is determined according to first resonance mode.
Such as, if it is determined that first resonance mode is the corresponding resonance mode of loop aerial, then referring to shown in Fig. 3 D,
The corresponding switch combination conduction mode of loop aerial are as follows: D1, D4 conducting, D2, D3 cut-off.
Then, it gives each RF switch diode to apply Dc bias respectively by DC bias source or does not apply Dc bias
Mode realize the corresponding switch combination conduction mode.
Referring to shown in Fig. 3 D, in order to realize that D1, D4 are connected, D2, D3 cut-off then need DC1 and DC2 to apply Dc bias,
DC2 does not apply Dc bias.DC1, DC2 and DC3 can be mentioned by the pin of antenna control chip or the control chip of electronic equipment
For Dc bias, it is not limited here.
It should be noted that each operation in the above method can be realized in a manner of software function module, for example, often
The corresponding functional module of a operation, any number of may be incorporated in a module are realized or any one mould therein
Block can be split into multiple modules.Alternatively, at least partly function of one or more modules in these modules can be with it
He combines at least partly function of module, and realizes in a module.For example, at least one in above-mentioned functional module can be with
At least it is implemented partly as hardware circuit, such as field programmable gate array (FPGA), programmable logic array (PLA), piece
The system in system, encapsulation, specific integrated circuit (ASIC) in upper system, substrate, or can be by being integrated to circuit
Or the hardware such as any other rational method or firmware of encapsulation are realized, or with three kinds of software, hardware and firmware realization sides
Any one in formula several appropriately combined is realized with wherein any.Alternatively, at least one of above-mentioned functional module can
To be at least implemented partly as computer program module, when the computer program module is run, can execute corresponding
Function.
Fig. 5 diagrammatically illustrates the block diagram of the electronic equipment according to the embodiment of the present disclosure.Electronic equipment shown in Fig. 5 is only
An example, should not function to the embodiment of the present disclosure and use scope bring any restrictions.
As shown in figure 5, the electronic equipment 500 includes: antenna 530 as described above, 510 He of one or more processors
Computer readable storage medium 520.The computer readable storage medium 520 is for storing one or more computer programs, institute
Computer program is stated when being executed by the processor, is realized: method as described above, and/or, to the antenna 530
Received signal is handled, and/or, treated signal is sent using the antenna 530.For example, the processor
Signal that 510 pairs of antennas 530 receive carries out data processing, in order to the data that show that treated, in another example, the place
Reason device 510 converts data to radiofrequency signal and is sent to the antenna 530, so that the antenna 530 carries out signal transmitting, when
So, the scheme of the above citing only to facilitate the understanding of the present disclosure, should not be understood as the restriction to this programme.
Specifically, processor 510 for example may include general purpose microprocessor, instruction set processor and/or related chip group
And/or special microprocessor (for example, specific integrated circuit (ASIC)), etc..Processor 510 can also include using for caching
The onboard storage device on way.Processor 510 can be the different movements for executing the method flow according to the embodiment of the present disclosure
Single treatment unit either multiple processing units.
Computer readable storage medium 520, such as can be non-volatile computer readable storage medium, specific example
Including but not limited to: magnetic memory apparatus, such as tape or hard disk (HDD)；Light storage device, such as CD (CD-ROM)；Memory, such as
Random access memory (RAM) or flash memory etc..
Computer readable storage medium 520 may include program 521, which may include that code/computer can be held
Row instruction, executes processor 510 according to the method for the embodiment of the present disclosure or its any change
Shape.
Program 521 can be configured to have the computer program code for example including computer program module.For example, showing
In example embodiment, the code in program 521 may include one or more program modules, for example including program module 521A, journey
Sequence module 521B ....It should be noted that the division mode and number of program module are not fixed, those skilled in the art
It can be combined according to the actual situation using suitable program module or program module, when these program modules are combined by processor
When 510 execution, processor 510 is executed according to the method for the embodiment of the present disclosure or its any deformation.
In accordance with an embodiment of the present disclosure, processor 510 can be interacted with computer readable storage medium 520, to hold
Row is according to the method for the embodiment of the present disclosure or its any deformation.
The disclosure additionally provides a kind of computer readable storage medium, which can be above-mentioned reality
It applies included in equipment/device/system described in example；Be also possible to individualism, and without be incorporated the equipment/device/
In system.Above-mentioned computer readable storage medium carries one or more program, when said one or multiple program quilts
When execution, the method according to the embodiment of the present disclosure is realized, and/or, the antenna received signal is handled, and
And/or person, treated signal is sent using the antenna.
In accordance with an embodiment of the present disclosure, computer readable storage medium can be non-volatile computer-readable storage medium
Matter, such as can include but is not limited to: portable computer diskette, hard disk, random access storage device (RAM), read-only memory
(ROM), erasable programmable read only memory (EPROM or flash memory), portable compact disc read-only memory (CD-ROM), light
Memory device, magnetic memory device or above-mentioned any appropriate combination.In the disclosure, computer readable storage medium can
With to be any include or the tangible medium of storage program, the program can be commanded execution system, device or device use or
Person is in connection.
It is also noted that the combination of each box in block diagram or flow chart and the box in block diagram or flow chart,
It can be realized with the dedicated hardware based system for executing defined functions or operations, or specialized hardware and meter can be used
The combination of calculation machine instruction is realized.
It will be understood by those skilled in the art that the feature recorded in each embodiment and/or claim of the disclosure can
To carry out multiple combinations and/or combination, even if such combination or combination are not expressly recited in the disclosure.Particularly, exist
In the case where not departing from disclosure spirit or teaching, the feature recorded in each embodiment and/or claim of the disclosure can
To carry out multiple combinations and/or combination.All these combinations and/or combination each fall within the scope of the present disclosure.
Although the disclosure, art technology has shown and described referring to the certain exemplary embodiments of the disclosure
Personnel it should be understood that in the case where the spirit and scope of the present disclosure limited without departing substantially from the following claims and their equivalents,
A variety of 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 should be not only determined by appended claims, also it is defined by the equivalent of appended claims.
Claims (10)
1. a kind of antenna, comprising:
Ontology has at least one access point；
At least one ennation；
At least one switch, is arranged between the ontology and the ennation；
Wherein, it at least one described switch conduction or disconnects to change the resonance mode of the antenna.
2. antenna according to claim 1, wherein the switch includes switching diode, passes through DC offset voltage control
The on and off state of diode processed.
3. antenna according to claim 2, wherein the switching diode includes RF switch diode；
The antenna further include: capacitance and DC bias source, wherein the capacitance is set at following at least one:
Between RF switch diode, at the ground connection of the ontology or at the ground connection of the ennation；
The DC bias source is used to apply Dc bias at least one RF switch diode, and the capacitance is for hindering
Every the DC bias source and/or barrier DC bias source to penetrating except at least one corresponding described RF switch diode
Frequency switching diode applies Dc bias.
4. antenna according to claim 3, wherein the resonance mode comprises at least one of the following: inverted F shaped antenna is corresponding
1/4 resonance wavelength corresponding 3/4 resonance wavelength of resonance mode, inverted F shaped antenna resonance mode, loop aerial it is corresponding humorous
Vibration mode, the corresponding resonance mode of dipole antenna.
5. antenna according to claim 4, wherein at least one described switch includes the switch combination conducting of specified number
Mode, each switch combination conduction mode correspond to a kind of resonance mode；
The antenna further include:
Detection circuit, for detecting the antenna received signal intensity, in order to be made by switching switch combination conduction mode
It obtains the antenna and is in the reception strongest resonance mode of signal.
6. antenna according to claim 5, in which:
The ontology includes inverted-F conductor；And/or
At least one described ennation includes multiple linear conductors, passes through a RF switch two respectively between multiple linear conductors
Pole pipe is connected；
The switch combination conduction mode includes:
First switch combines conduction mode, in which:
It is in off state in response to all RF switch diodes, it is corresponding that the resonance mode of the antenna corresponds to inverted F shaped antenna
1/4 resonance wavelength resonance mode,
In the conductive state in response to all RF switch diodes, it is corresponding that the resonance mode of the antenna corresponds to inverted F shaped antenna
3/4 resonance wavelength resonance mode；
Second switch combines conduction mode, in which:
It is in off state in response to all RF switch diodes, it is corresponding that the resonance mode of the antenna corresponds to inverted F shaped antenna
1/4 resonance wavelength resonance mode, and
In the conductive state in response to all RF switch diodes, the resonance mode of the antenna corresponds to the resonance of loop aerial
Mode；
Third switch combination conduction mode, in which: it is in off state in response to all RF switch diodes, the antenna
Resonance mode corresponds to the resonance mode of corresponding 1/4 resonance wavelength of inverted F shaped antenna,
In the conductive state in response to first part's RF switch diode, the resonance mode of the antenna corresponds to inverted F shaped antenna
The resonance mode of corresponding 3/4 resonance wavelength, and
In the conductive state in response to second part RF switch diode, the resonance mode of the antenna corresponds to loop aerial
Resonance mode, wherein the union of first part's RF switch diode and the second part RF switch diode is
All RF switch diodes.
7. antenna according to claim 3, further includes:
Inductance is isolated, is set between the DC bias source and antenna.
8. a kind of method of controlling antenna, for controlling antenna as described in any one of claims 1 to 7, which comprises
By controlling at least one switch conduction or disconnecting to change the resonance mode of the antenna.
9. according to the method described in claim 8, wherein, described switch is RF switch diode, described by controlling at least
One switch conduction disconnects and with the resonance mode for changing the antenna includes:
By controlling at least one switch conduction or disconnecting to obtain antenna received signal strength under different resonance modes,
It obtains receiving the strongest resonance mode of signal,
It controls the antenna and is in the reception strongest resonance mode of signal；
Or
The antenna includes the switch combination conduction mode of specified number, and each switch combination conduction mode corresponds to a kind of resonant mode
State combines conduction mode so that the antenna, which is in, receives the strongest resonant mode of signal by controlling the antenna change-over switch
State, comprising:
By switching switch combination conduction mode to obtain antenna received signal strength under different resonance modes, connect
The collection of letters number strongest resonance mode,
It controls the antenna and is in the reception strongest resonance mode of signal；
Wherein, the switching switch combination conduction mode includes:
Determination the first resonance mode to be switched to；
Corresponding switch combination conduction mode is determined according to first resonance mode；And
It is real in such a way that DC bias source gives each RF switch diode to apply Dc bias respectively or do not apply Dc bias
The existing corresponding switch combination conduction mode.
10. a kind of electronic equipment, comprising:
Antenna as described in any one of claims 1 to 7；
One or more processors；
Computer readable storage medium, for storing one or more computer programs, the computer program is by the place
When managing device execution, method as claimed in claim 8 or 9 is realized.
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| CN110718749A (en) * | 2019-10-25 | 2020-01-21 | 广东工业大学 | Miniaturized multi-frequency planar inverted F antenna |
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| EP4068511A4 (en) * | 2019-12-23 | 2023-01-04 | Huawei Technologies Co., Ltd. | Printed antenna |
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| CN109728417B (en) | 2021-06-15 |
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