CN106899092A - RF energy collection device and mobile terminal - Google Patents
RF energy collection device and mobile terminal Download PDFInfo
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- CN106899092A CN106899092A CN201710093893.2A CN201710093893A CN106899092A CN 106899092 A CN106899092 A CN 106899092A CN 201710093893 A CN201710093893 A CN 201710093893A CN 106899092 A CN106899092 A CN 106899092A
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Abstract
This disclosure relates to a kind of RF energy collection device and mobile terminal, the energy for reclaiming antenna end reflection.The RF energy collection device includes：Power amplifier and antenna, and it is arranged on the antenna switch module between the power amplifier and the antenna；The RF energy collection device also includes：Coupler Module, is arranged between the antenna switch module and the antenna, the distribution for realizing power；RF energy collection module, is arranged between the Coupler Module and load blocks, for receiving the energy of the Coupler Module coupling output and storing electric energy, thinks that the load blocks charge.The disclosure can reduce the influence of the docking collection of letters number, reduce energy content of battery consumption, improves battery durable ability, the stand-by time of extension mobile terminal.
Description
Technical field
This disclosure relates to mobile communication technology field, more particularly to a kind of RF energy collection device and mobile terminal.
Background technology
So far, the energy supply of mobile terminal device still places one's entire reliance upon battery module, but with the function of mobile terminal
More and more, corresponding power consumption requirements also more and more higher, simple battery-powered cannot gradually meet mobile terminal device
Energy requirements.For example, inevitably there is impedance mismatching especially near the position of antenna feed in mobile phone front end circuit
Etc. factor, most energy is thus caused to be reflected and dissipated, antenna efficiency only 40% or so, this is to battery of mobile phone
Electricity is a kind of very big waste.
In the prior art, for the energy consumption problem of mobile terminal device, increase battery capacity or shortening are on the one hand taken
The mode in charging interval meets user's request, on the other hand realizes efficient managing power consumption by continuous system optimization,
So as to reach the purpose of power saving.In addition, it is mobile whole for improving if the energy of dissipation can be reclaimed and is used
The battery durable ability of end equipment will be highly beneficial.
It should be noted that information is only used for strengthening the reason of background of this disclosure disclosed in above-mentioned background section
Solution, therefore can include not constituting the information to prior art known to persons of ordinary skill in the art.
The content of the invention
The purpose of the disclosure is to provide a kind of RF energy collection device and mobile terminal, and then at least to a certain degree
On overcome due to one or more problem caused by the limitation of correlation technique and defect.
Other characteristics and advantage of the disclosure will be apparent from by following detailed description, or partially by the disclosure
Practice and acquistion.
According to an aspect of this disclosure, there is provided a kind of RF energy collection device, the energy for reclaiming antenna end reflection
Amount；The RF energy collection device includes：Power amplifier and antenna, and it is arranged on the power amplifier and the day
Antenna switch module between line；The RF energy collection device also includes：
Coupler Module, is arranged between the antenna switch module and the antenna, the distribution for realizing energy；
RF energy collection module, is arranged between the Coupler Module and load blocks, for receiving the coupling
The energy of device module coupling output simultaneously stores electric energy, thinks that the load blocks charge.
In a kind of exemplary embodiment of the disclosure, the Coupler Module includes variable coupler, the adjustable coupling
Device is used to select the radio frequency path of the different degrees of coupling.
In a kind of exemplary embodiment of the disclosure, the variable coupler include the coupler of multiple difference degrees of coupling with
And switch element, the switch element is for providing different on off states to select the radio frequency path of the different degrees of coupling；
The switch element has two straight-through ends and a coupled output, each straight-through end and the coupling
Output end is equipped with multiple selection positions, and the quantity of the selection position is equal with the quantity of the coupler；
Wherein, in the coupler of the multiple different degrees of coupling, two straight-through pins of each coupler respectively with institute
The different choice position for stating each straight-through end of switch element is connected, and the coupled output of each coupler is opened with described respectively
The different choice position for closing the coupled output of unit is connected.
In a kind of exemplary embodiment of the disclosure, the switch element is made up of three single pole multiple throws, wherein two
The individual single pole multiple throw respectively constitutes two straight-through ends of the switch element, and another described single pole multiple throw is constituted
The coupled output of the switch element.
In a kind of exemplary embodiment of the disclosure, in the coupler of the multiple different degrees of coupling, each described coupling
The degree of coupling of device is between 3~12dB.
In a kind of exemplary embodiment of the disclosure, the variable coupler also includes an isolation end, and the isolation end
Connect an Ohmic resistance.
In a kind of exemplary embodiment of the disclosure, the RF energy collection module includes：
Detection energy-storage units, the input of the detection energy-storage units connects the coupled output of the variable coupler,
The output end connection booster circuit unit of the detection energy-storage units, the detection energy-storage units are used to extract the voltage letter of low frequency
Number and store electric energy；
Monitoring and Controlling unit, output end connection the detection energy-storage units and the described liter of piezoelectricity of the Monitoring and Controlling unit
Road unit, the Monitoring and Controlling unit is used for according to storage capacitor in the demand of the load blocks monitoring detection energy-storage units
Whether magnitude of voltage meets power reguirements, and controls the booster circuit unit to be charged to the load blocks；
Booster circuit unit, the input of the booster circuit unit connect the detection energy-storage units output end and
The output end of the Monitoring and Controlling unit, the output end of the booster circuit unit connects the load blocks, described liter of piezoelectricity
Road unit is used to realize voltage conversion to improve the driving force of the RF energy collection device.
In a kind of exemplary embodiment of the disclosure, the detection energy-storage units include detecting circuit and storage capacitor；
Wherein, the detecting circuit is used to be extracted from the radio-frequency carrier signal of high frequency the voltage signal of low frequency, to institute
Storage capacitor is stated to be charged.
In a kind of exemplary embodiment of the disclosure, the detecting circuit includes commutation diode, and the rectification two
The input of pole pipe is connected with the coupled output of the variable coupler.
In a kind of exemplary embodiment of the disclosure, the storage capacitor is super capacitor.
In a kind of exemplary embodiment of the disclosure, the Monitoring and Controlling unit is by the universal input of main control chip/defeated
Exit port is configured；
The Monitoring and Controlling unit includes sample circuit, for storage capacitor in detection energy-storage units described in periodic monitor
Magnitude of voltage simultaneously feeds back to the main control chip；
The main control chip is used to adjust the booster circuit list when the magnitude of voltage of the storage capacitor reaches preset value
First control signal dutycycle, and change the output voltage of the booster circuit unit to meet the requirement of load blocks.
In a kind of exemplary embodiment of the disclosure, the antenna switch module includes that duplexer and duplexer switching are single
Unit；
Wherein, the input of the duplexer connects the output end of the power amplifier, the output end of the duplexer
The input of the duplexer switch unit is connected, the output end of the duplexer switch unit connects the adjustable coupling
The go side always of device.
RF energy collection device according to an aspect of this disclosure, there is provided a kind of mobile terminal including above-mentioned.
RF energy collection device and mobile terminal that disclosure illustrative embodiments are provided, in conventional radio frequency circuit
On the basis of increased Coupler Module and RF energy collection module, be capable of achieving recycling to antenna end reflected energy.
On the one hand, the reflected energy of antenna end is reclaimed by the RF energy collection module, can effectively reduces reflection
The influence of the signal docking collection of letters number；On the other hand, the energy for being stored in the RF energy collection module can also be load mould
Block charges, so as to reduce the energy ezpenditure of battery, improve battery durable ability, the stand-by time of extension mobile terminal.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the disclosure
Example, and it is used to explain the principle of the disclosure together with specification.It should be evident that drawings in the following description are only the disclosure
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 schematically shows the module diagram of the RF energy collection device in disclosure exemplary embodiment；
Fig. 2 schematically shows the principle schematic diagram. of the RF energy collection device in disclosure exemplary embodiment；
Fig. 3 schematically shows the structural representation of the variable coupler in disclosure exemplary embodiment；
Fig. 4 schematically shows the signal receiving strength-degree of coupling relation table in disclosure exemplary embodiment；
Fig. 5 schematically shows the electrical block diagram of the RF energy collection device in disclosure exemplary embodiment.
Specific embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with various shapes
Formula is implemented, and is not understood as limited to example set forth herein；Conversely, thesing embodiments are provided so that the disclosure will more
Fully and completely, and by the design of example embodiment those skilled in the art is comprehensively conveyed to.Described feature, knot
Structure or characteristic can be combined in one or more implementation methods in any suitable manner.In the following description, there is provided perhaps
Many details are so as to provide fully understanding for implementation method of this disclosure.It will be appreciated, however, by one skilled in the art that can
Omit one or more in the specific detail to put into practice the technical scheme of the disclosure, or other sides can be used
Method, constituent element, device, step etc..In other cases, be not shown in detail or describe known solution a presumptuous guest usurps the role of the host avoiding and
So that each side of the disclosure thickens.
Additionally, accompanying drawing is only the schematic illustrations of the disclosure, it is not necessarily drawn to scale.Identical accompanying drawing mark in figure
Note represents same or similar part, thus will omit repetition thereof.Some block diagrams shown in accompanying drawing are work(
Energy entity, not necessarily must be corresponding with physically or logically independent entity.These work(can be realized using software form
Energy entity, or these functional entitys are realized in one or more hardware modules or integrated circuit, or at heterogeneous networks and/or place
These functional entitys are realized in reason device device and/or microcontroller device.
A kind of RF energy collection device is proposed in this example embodiment, can be used to reclaim the energy of antenna end reflection
Amount；As shown in figure 1, described RF energy collection device can include：
Power amplifier (Power Amplifier, abbreviation PA) 10, the power for amplifying radiofrequency signal；
Antenna 20, for realizing the conversion between electromagnetic wave signal and current signal；
Antenna switch module 30, is arranged between the power amplifier 10 and the antenna 20, for controlling radio frequency to lead to
The switch on road；
Coupler Module 40, is arranged between the antenna switch module 30 and the antenna 20, for realizing energy
Distribution；
RF energy collection module 50, is arranged on the Coupler Module 40 and between load blocks 60, for receiving
The energy of the coupling output of the Coupler Module 40 simultaneously stores electric energy, thinks that the load blocks 60 charge.
It should be noted that：First, the power amplifier 10 refers to for exporting high-power signal in radio circuit
Amplifying circuit；Used as the critical component in radio circuit, signal need to amplify by PA can just be transported to antenna end, and then be radiated
Space, completes communication transmitting.
Second, the antenna 20 refers to the part for launching and receiving signal, its can specifically be divided into reception antenna and
Transmitting antenna, reception antenna is that the frequency electromagnetic waves for receiving are converted into high frequency signal current, and transmitting antenna is that high frequency is believed
Number electric current is converted into high-frequency electromagnetic wave excitation and goes out.
3rd, the load blocks 60 refer to that the part of energy is extracted from the RF energy collection module 50, its tool
Body can be power supply module such as battery or super capacitor etc..
The RF energy collection device that disclosure illustrative embodiments are provided, increases on the basis of conventional radio frequency circuit
Add Coupler Module 40 and RF energy collection module 50, be capable of achieving the recycling to antenna end reflected energy.On the one hand,
The reflected energy of antenna end is reclaimed by the RF energy collection module 50, can effectively reduce reflected signal pair
Receive the influence of signal；On the other hand, the energy for being stored in the RF energy collection module 50 can also be load blocks 60
Charge, so as to reduce the energy ezpenditure of battery, improve battery durable ability, the stand-by time of extension mobile terminal.
Each part of the RF energy collection device in this example embodiment will be described in detail below.
In this example embodiment, as shown in Fig. 2 the antenna switch module 30 can include duplexer
(Duplexer) 31 and duplexer switch unit (Antenna Switch Module, abbreviation ASM) 32；The duplexer 31
Input connect the output end of the PA10, the output end of the duplexer 31 connects the input of the ASM32, described
The output end of ASM32 connects the go side always that the Coupler Module 40 is variable coupler 400.
Wherein, the duplexer 31 is a kind of alien frequencies two-way radios, is made up of the bandstop filter of two groups of different frequencies, its
Effect is that transmission signal and reception signal is mutually isolated, it is to avoid the signal transmission of emitter is to receiver, so as to ensure transmitting
Can be while normal work with receiving.
In this example embodiment, as shown in Fig. 2 the Coupler Module 40 can include variable coupler 400, institute
Variable coupler 400 is stated for selecting the radio frequency path of the different degrees of coupling.
Variable coupler 400 is set to here by by the Coupler Module 40, just can be according to the difference of mobile terminal
Working condition adjusts the degree of coupling of the variable coupler 400, so as to realize collecting the maximization of antenna end reflected energy.
Specifically, as shown in figure 3, the variable coupler 400 can include the coupler 41 of multiple difference degrees of coupling with
And switch element 42；Wherein, the switch element 42 has two straight-through end a and b (a straight-through input and a straight-through output
End) and a coupled output c, each straight-through end and the coupled output are equipped with multiple selection positions, and institute
The quantity for stating selection position is equal with the quantity of the coupler 41.That is, each straight-through end institute of the switch element 42
If selection position can be used to connect the straight-through end of corresponding coupler 41, the choosing set by the coupled output of the switch element 42
Select the coupled output that position can be used to connect corresponding coupler 41.
Wherein, in the variable coupler 400, two straight-through pins (1 and 3) of each coupler 41 can respectively with open
The different choice position for closing each straight-through end (a and b) of unit 42 is connected, and the coupled output (4) of each coupler 41 can divide
It is not connected with the different choice position of the coupled output (c) of switch element 42, so as to realize the connection work(of the switch element 42
Energy.
Based on this, the radio frequency that the switch element 42 can be used to provide different on off states to select the different degrees of coupling leads to
Road, so just can according to actual needs adjust the connected mode of the switch element 42 to realize the selection of the degree of coupling.Root
The characteristics of according to signal real-time change is received, the degree of coupling control interval of the variable coupler 400 should be the smaller the better, but due to
Cost and the limitation in space, this example embodiment will otherwise provide for the setting interval of the degree of coupling.
Optionally, the switch element 42 can be made up of three single pole multiple throws, thrown hilted broadsword described in two of which more
Switch respectively constitutes two straight-through end a and b of the switch element 42, and another described single pole multiple throw constitutes the switch
The coupled output c of unit 42.
It should be noted that：The implementation not limited to this of the switch element 42, it can also be by other connections
Mode for example sets multilayer single-pole double-throw switch (SPDT) and is attached, as long as the selection function of different coupler paths can be realized i.e.
Can.
On this basis, the variable coupler 400 can also include an isolation end, and the isolation end connects one ohm
Resistance.Here, the isolation end of the variable coupler 400 connects an Ohmic resistance and can be equivalent to the variable coupler 400
In the isolation end of each coupler 41 be all connected with an Ohmic resistance.Wherein, the resistance of the Ohmic resistance can be set as 50
Ω, naturally it is also possible to select other suitable resistances.
Based on this, this example connects Ohmic resistance by the isolation end in the variable coupler 400, it is possible to decrease be assigned to
The energy of isolation end, so as to be assigned to coupled output as far as possible and enter radio frequency energy by the energy of coupler coupling output
Amount collection module 50.
For example, the structure of the variable coupler 400 may be referred to shown in Fig. 3, and it has been internally integrated four differences
The coupler 41 of the degree of coupling and three single pole multiple throws, three single pole multiple throws constitute opening for variable coupler 400
Close unit 42；The common port of two of which single pole multiple throw is respectively the straight-through end a and b of variable coupler 400, another list
The common port of knife multithrow switch is the coupled output c of variable coupler 400；The straight-through pin 1 and 3 of each coupler 41 is distinguished
Be connected with four of the straight-through end a and b of variable coupler 400 selection positions, the coupled output 4 of each coupler 41 respectively with can
The coupled output c of coupler 400 is adjusted to be connected；Each coupler 41 also has an isolation end, and the isolation end connects one 50 Ω
Ohmic resistance.The variable coupler 400 of this example provide four adjustable degrees of coupling, can as needed will described in
The corresponding selection position of the straight-through end a and b and coupled output c of switch element 42 and the straight-through pin of required coupler 41 and
Coupled output is connected, so as to realize the selection of the radio frequency path of the specific degree of coupling.
Understand that the coupler is a kind of radio-frequency devices for realizing power distribution, and it will can connect based on foregoing description
The signal for receiving distributes to different functional modules according to actual needs.In this example embodiment, the variable coupler
400 signals that will can be received (including receiving signal and reflected signal) distribute to RF energy collection module 50 and duplexer
Module 30；So, the intensity that signal is received according to antenna end adjusts to the coupling for needing the variable coupler 400
Degree, that is, select the coupler 41 of the suitable degree of coupling, to realize the connection of respective radio-frequency path, so as to be collected to the RF energy
The power of module 50 and the antenna switch module 30 is reasonably distributed.
On this basis, the degree of coupling of each coupler 41 is preferably provided between 3~12dB.When need adjust institute
When stating the degree of coupling of variable coupler 400, the selection of the degree of coupling is relevant with the intensity for receiving signal：When antenna end receive signal compared with
Qiang Shi, in order to reduce the interference to other users, corresponding transmission signal can suitably weaken, now in order to realize the maximum of energy
Change and collect, it is necessary to improving coupling exports energy, the i.e. relatively low coupler closed-circuit working of the selection degree of coupling；When antenna end receives signal
When weaker, transmission power is relatively strong, and the influence of the collection of letters number is now docked to weaken, that is, reduce the decay of the docking collection of letters number,
Need to reduce coupling output energy, that is, select the coupler power work that the degree of coupling is higher.
The characteristics of according to signal real-time change is received, the degree of coupling control interval of the variable coupler 400 should be smaller
Better.But limited in view of cost and space, this example embodiment can only in the range of the varying strength for receiving signal
The corresponding degree of coupling is set, referring specifically to the signal receiving strength shown in Fig. 4-degree of coupling relation table.
For example, with reference to shown in Fig. 4, when received signal strength is -70dBm, transmission power is only 16dBm, reflection
Energy level is 10dBm, and now preferred coupled degree is the coupler path of 3dB, i.e., coupling output energy is 7dBm, in this situation
Under, although receiving signal attenuation 3dB, but the signal intensity of -73dBm still can normally receive demodulation；When receiving, signal is strong
Spend during for -100dBm, transmission power is up to 23dBm, reflected energy level is 16dBm or so, and now preferred coupled degree is 9dB's
Coupler path, i.e. coupling output energy are maintained near 7dBm, in the case, the 0.6dB that decayed of reception signal, and-
The signal intensity of 100.6dBm is still in the scope that can normally receive demodulation.
In this example embodiment, as shown in Fig. 2 the RF energy collection module 50 can include：
Detection energy-storage units 51, the input of the detection energy-storage units 51 connects the coupling of the variable coupler 400
Output end, the output end connection booster circuit unit 53 of the detection energy-storage units 51, the detection energy-storage units 51 are used to carry
Take the voltage signal of low frequency and store electric energy；
Monitoring and Controlling unit 52, the output end of the Monitoring and Controlling unit 52 connects detection energy-storage units 51 and described
Booster circuit unit 53, the Monitoring and Controlling unit 52 is used to monitor the detection energy-storage units according to the demand of load blocks 60
Whether the magnitude of voltage of storage capacitor meets power reguirements in 51, and controls the booster circuit unit 53 to the load blocks 60
Charged；
Booster circuit unit 53, the input of the booster circuit unit 53 connects the output of the detection energy-storage units 51
End and the output end of the Monitoring and Controlling unit 52, the output end of the booster circuit unit 53 connect the load blocks
60, the booster circuit unit 53 is used to realize voltage conversion to improve the driving force of the RF energy collection device, expire
The energy supply demand of sufficient different loads.
It should be noted that：Load blocks 60 in this example refer to power supply module such as battery, and negative in this example
Load refers to then the power consumption module such as sensor in terminal device.
Optionally, as shown in figure 5, the detection energy-storage units 51 can include detecting circuit and storage capacitor；The inspection
Wave circuit can include commutation diode, and the input of the commutation diode is defeated with the coupling of the variable coupler 400
Go out end to be connected；The storage capacitor can be super capacitor, generally farad grade.Here, the detecting circuit can be from high frequency
Radio-frequency carrier signal in extract the voltage signal of low frequency, charged with to the storage capacitor；Wherein, the high frequency is
Refer to 0.8~2.5GHz, the low frequency refers to 10kHz or so.
Further, the Monitoring and Controlling unit 52 can be by the universal input of main control chip/output (General
Purpose Input Output, abbreviation GPIO) port configured；The Monitoring and Controlling unit 52 can include ADC (moduluses
Conversion) sample circuit, magnitude of voltage for storage capacitor in detection energy-storage units 51 described in periodic monitor simultaneously feeds back to the master
Control chip；The main control chip is used to adjust the booster circuit unit when the magnitude of voltage of the storage capacitor reaches preset value
53 control signal dutycycles, and change the output voltage of the booster circuit unit 53 to meet the demand of load blocks 60.
In above-mentioned RF energy collection module 50, the detecting circuit can be coupled from the variable coupler 400
In the voltage signal of low frequency is extracted in the energy of output and storing the energy in the storage capacitor, the Monitoring and Controlling unit
The magnitude of voltage of storage capacitor described in 52 ADC sample circuit periodic monitors simultaneously feeds back to the main control chip, the main control chip
The control signal dutycycle of DC-DC booster circuit unit 53 is adjusted when the magnitude of voltage of the storage capacitor reaches preset value, and is changed
The output voltage for becoming the DC-DC booster circuit charges to load blocks 60.
Based on foregoing description, with reference to shown in Fig. 5, the circuit of the RF energy collection device that this example embodiment is provided
Structure is as follows：The output end of power amplifier 10 connects the input pin of duplexer 31, the common port connection ASM32's of duplexer 31
Input, the ANT interface ends of ASM32 connect the straight-through output end of variable coupler 400, the straight-through output of variable coupler 400
End connection rear end antenna 20 feeds, and the isolation end connection Ohmic resistance of variable coupler 400, the coupling of variable coupler 400 is defeated
The input of the commutation diode gone out in end connection detection energy-storage units 51, the output end connection of detection energy-storage units 51 rises piezoelectricity
The input of road unit 53, the input and booster circuit list of the output end connection detection energy-storage units 51 of Monitoring and Controlling unit 52
The input of unit 53, the output end connection load blocks 60 of booster circuit unit 53.
The function of the circuit is described as follows：When there is the transmission signal of relatively high power, the reflected energy at antenna feed
Can be very strong, reflected energy by after the coupling output of variable coupler, by the envelope detection that commutation diode and electric capacity are constituted
For storage capacitor charges after circuit；Wherein, in order to the degree of coupling needs for not influenceing receptivity, coupler are accomplished can adjust, i.e.,
Dynamic changes of strength according to signal is received adjusts the degree of coupling of coupler.According to the work characteristics that radio circuit not timing is launched, should
Charging process is that a magnitude of voltage gradually rises and reaches the process of certain stable state, the ADC sample circuit meetings of Monitoring and Controlling unit
Timing detects the magnitude of voltage of storage capacitor, when its magnitude of voltage reaches certain value when (such as 1V), main control chip adjustment DC-DC liters
The PWM switch controlling signal dutycycles of volt circuit unit, change the output voltage of DC-DC booster circuit unit, to meet load
It is required that.
The energy collected by RF energy collection device that this example embodiment is provided can be very good to meet mobile whole
The power demands of each part especially low-power consumption part such as sensor at end, thus greatly reduce the energy ezpenditure of battery,
Improve capacity usage ratio and extend the stand-by time of mobile terminal.
A kind of mobile terminal is also proposed in this example embodiment, the energy for reclaiming antenna end reflection；The shifting
Dynamic terminal can include above-mentioned RF energy collection device.
Wherein, the mobile terminal can be hand-held wireless device such as mobile phone or iPad, mobile base station and wireless
The equipment such as broadcast.
It should be noted that：The detail of each modular unit is received in corresponding RF energy in the mobile terminal
It is described in detail in acquisition means, therefore is repeated no more here.
Although it should be noted that being referred to some modules or list of the equipment for action executing in above-detailed
Unit, but this division is not enforceable.In fact, according to embodiment of the present disclosure, it is above-described two or more
The feature and function of module or unit can embody in a module or unit.Conversely, an above-described mould
The feature and function of block or unit can be further divided into being embodied by multiple modules or unit.
Additionally, although each step of method in the disclosure is described with particular order in the accompanying drawings, this does not really want
Asking or imply must perform these steps according to the particular order, or the step having to carry out shown in whole could be realized
Desired result.It is additional or alternative, it is convenient to omit some steps, multiple steps are merged into a step and is performed, and/
Or a step is decomposed into execution of multiple steps etc..
Through the above description of the embodiments, those skilled in the art is it can be readily appreciated that example described herein is implemented
Mode can be realized by software, it is also possible to be realized by way of software is with reference to necessary hardware.Therefore, according to the disclosure
The technical scheme of implementation method can be embodied in the form of software product, and the software product can store non-volatile at one
Property storage medium (can be CD-ROM, USB flash disk, mobile hard disk etc.) in or network on, including some instructions are causing a calculating
Equipment (can be personal computer, server, mobile terminal or network equipment etc.) is performed according to disclosure implementation method
Method.
Those skilled in the art will readily occur to its of the disclosure after considering specification and putting into practice invention disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or
Person's adaptations follow the general principle of the disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by appended
Claim is pointed out.
Claims (13)
1. a kind of RF energy collection device, including：Power amplifier and antenna, and it is arranged on the power amplifier and institute
State the antenna switch module between antenna；Characterized in that, the RF energy collection device also includes：
Coupler Module, is arranged between the antenna switch module and the antenna, the distribution for realizing energy；
RF energy collection module, is arranged between the Coupler Module and load blocks, for receiving the coupler mould
The energy of block coupling output simultaneously stores electric energy, thinks that the load blocks charge.
2. RF energy collection device according to claim 1, it is characterised in that the Coupler Module includes adjustable coupling
Clutch, the variable coupler is used to select the radio frequency path of the different degrees of coupling.
3. RF energy collection device according to claim 2, it is characterised in that the variable coupler include it is multiple not
With the coupler and switch element of the degree of coupling, the switch element is used to provide different on off states to select different couplings
The radio frequency path of degree；
The switch element has two straight-through ends and a coupled output, and each straight-through end and the coupling are exported
End is equipped with multiple selection positions, and the quantity of the selection position is equal with the quantity of the coupler；
Wherein, in the coupler of the multiple different degrees of coupling, two straight-through pins of each coupler are opened with described respectively
The different choice position for closing each straight-through end of unit is connected, and the coupled output of each coupler is single with the switch respectively
The different choice position of the coupled output of unit is connected.
4. RF energy collection device according to claim 3, it is characterised in that the switch element is more by three hilted broadswords
Throw switch is constituted, and single pole multiple throw described in two of which respectively constitutes two straight-through ends of the switch element, another institute
State the coupled output that single pole multiple throw constitutes the switch element.
5. RF energy collection device according to claim 3, it is characterised in that the coupling of the multiple different degrees of coupling
In device, the degree of coupling of each coupler is between 3~12dB.
6. RF energy collection device according to claim 2, it is characterised in that the variable coupler also include one every
From end, and the isolation end connects an Ohmic resistance.
7. RF energy collection device according to claim 2, it is characterised in that the RF energy collection module bag
Include：
Detection energy-storage units, the input of the detection energy-storage units connects the coupled output of the variable coupler, described
The output end connection booster circuit unit of detection energy-storage units, the detection energy-storage units are used to extract the voltage signal of low frequency simultaneously
Storage electric energy；
Monitoring and Controlling unit, output end connection the detection energy-storage units and the booster circuit list of the Monitoring and Controlling unit
Unit, the Monitoring and Controlling unit is used to be monitored according to the demand of load blocks the voltage of storage capacitor in the detection energy-storage units
Whether value meets power reguirements, and controls the booster circuit unit to be charged to the load blocks；
Booster circuit unit, the input of the booster circuit unit connects the output end of the detection energy-storage units and described
The output end of Monitoring and Controlling unit, the output end of the booster circuit unit connects the load blocks, the booster circuit list
Unit is for realizing voltage conversion to improve the driving force of the RF energy collection device.
8. RF energy collection device according to claim 7, it is characterised in that the detection energy-storage units include detection
Circuit and storage capacitor；
Wherein, the detecting circuit is used to be extracted from the radio-frequency carrier signal of high frequency the voltage signal of low frequency, to the storage
Energy electric capacity is charged.
9. RF energy collection device according to claim 8, it is characterised in that the detecting circuit includes rectification two
Pole pipe, and the input of the commutation diode is connected with the coupled output of the variable coupler.
10. RF energy collection device according to claim 8, it is characterised in that the storage capacitor is super capacitor.
11. RF energy collection devices according to claim 7, it is characterised in that the Monitoring and Controlling unit is by master
The general input/output port for controlling chip is configured；
The Monitoring and Controlling unit includes sample circuit, for the voltage of storage capacitor in detection energy-storage units described in periodic monitor
It is worth and feeds back to the main control chip；
The main control chip is used to adjust the booster circuit unit control when the magnitude of voltage of the storage capacitor reaches preset value
Signal dutyfactor processed, and change the output voltage of the booster circuit unit to meet the requirement of load blocks.
12. RF energy collection devices according to claim 2, it is characterised in that the antenna switch module includes double
Work device and duplexer switch unit；
Wherein, the input of the duplexer connects the output end of the power amplifier, the output end connection of the duplexer
The input of the duplexer switch unit, the output end of the duplexer switch unit connects the variable coupler
Go side always.
13. a kind of mobile terminals, it is characterised in that including the RF energy collection device described in claim any one of 1-12.
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