CN109039348A - Method of controlling antenna and ACU antenna control unit - Google Patents
Method of controlling antenna and ACU antenna control unit Download PDFInfo
- Publication number
- CN109039348A CN109039348A CN201810595042.2A CN201810595042A CN109039348A CN 109039348 A CN109039348 A CN 109039348A CN 201810595042 A CN201810595042 A CN 201810595042A CN 109039348 A CN109039348 A CN 109039348A
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- antenna
- matching network
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- processor
- interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
The embodiment of the invention discloses a kind of ACU antenna control units, are applied in terminal.The ACU antenna control unit includes: switch module, multiple matching networks and processing module.One end of the multiple matching network all passes through switch module and is electrically connected with the antenna of terminal, and the other end of the multiple matching network is all grounded.Processing module, for when it is insert state that the peripheral interface for detecting terminal is by being not inserted into Status Change, antenna is electrically connected by control switch module with the initial matching network in multiple matching networks to be switched to antenna and be electrically connected with the preset matching network in multiple matching networks；The transmitting frequency range or reception frequency range for the antenna that wherein the preset matching network is got with the rf processor by terminal match.The embodiment of the invention also discloses a kind of method of controlling antenna, when peripheral interface becomes insert state, antenna can be made to be electrically connected with optimal matching network, to improve antenna radiation efficiency.
Description
Technical field
The present invention relates to field of communication technology, in particular to a kind of method of controlling antenna and ACU antenna control unit.
Background technique
As the handheld terminals such as mobile phone, tablet computer become increasingly popular, more and more terminals using full metal jacket or
Metal edge frame promotes the appearance and texture of product.However the antenna performance of this product appearance or texture and terminal is often
It conditions each other, along with the more and more frivolous trend of current terminal, so that the design space of antenna becomes smaller and smaller, day
Line is designed toward modular development.But modularization antenna often has the problem of antenna frequencies narrow bandwidth, in order to solve this problem, Chang Tian
Line end adds rearrangeable switch device (for example including single pole multiple throw).
Frame is usually used as aerial radiation ontology to the Antenna Design of metal rear shell in the prior art, and antenna base
It originally is can around have the external components such as USB and earphone for lower end antenna in mobile phone lower end or upper end, when periphery is matched
Part such as earphone etc. will lead to antenna environment and be deteriorated so as to cause degradation when being inserted into.
The prior art is to pass through double-point double-throw switch using software algorithm when peripheral components are inserted into aft antenna degradation
(Double Pole Double Throw, DBDT) is switched over, but handoff algorithms are only being lower than to prevent frequent switching
(usually 5dB) can just be switched when certain threshold value, and even if main transmitting-receiving switches to upper end, auxiliary reception still can be switched to down
End, such earphone or USB insertion bring are influenced or can not be eliminated.
Summary of the invention
On the one hand the embodiment of the present invention discloses a kind of ACU antenna control unit, be applied in terminal, the day line traffic control
Device includes:
Switch module；
Multiple matching networks, one end of the multiple matching network all pass through switch module and are electrically connected with the antenna of terminal,
The other end of the multiple matching network is all grounded；
Processing module, for the peripheral interface for detecting the terminal by be not inserted into Status Change be insert state when,
Antenna is electrically connected with the initial matching network in multiple matching networks and is switched to antenna and multiple pair nets by control switch module
Preset matching network electrical connection in network；The wherein day that the preset matching network is got with the rf processor by terminal
The transmitting frequency range or reception frequency range of line match.
As a kind of possible embodiment, in the ACU antenna control unit, the peripheral interface of the terminal includes eventually
The earphone interface or USB interface at end.
As a kind of possible embodiment, in the ACU antenna control unit, each of the multiple matching network
Matching network includes capacitor, inductance, resistance or their any combination.
As a kind of possible embodiment, in the ACU antenna control unit, the processing module includes application processing
Device and Communication processor；
The application processor is used in the peripheral interface for detecting the terminal by being not inserted into Status Change as insertion shape
When state, Status Change instruction is generated；
The Communication processor is used to instruct the transmitting frequency for obtaining the antenna that rf processor detects according to Status Change
Section receives frequency range and by control interface control switch module by the initial matching net in antenna and multiple matching networks
Network electrical connection is switched to antenna and is electrically connected with the preset matching network in multiple matching networks.
As a kind of possible embodiment, in the ACU antenna control unit, the control interface is that universal input is defeated
Outgoing interface (GPIO, General Purpose Input Output) or mobile industry processor interface (MIPI, Mobile
Industry Processor Interface)。
As a kind of possible embodiment, in the ACU antenna control unit, the preset matching network and pass through end
The transmitting frequency range or reception frequency range for the antenna that the rf processor at end is got, which match, includes:
The transmitting frequency range for the antenna that the capacitance of the preset matching network is got with the rf processor by terminal
Or it receives frequency range and matches.
On the other hand the embodiment of the present invention discloses a kind of method of controlling antenna, be applied to including switch module, multiple
In the terminal of matching network and processing module；One end of the multiple matching network all passes through the antenna electric of switch module and terminal
Connection, the other end of the multiple matching network are all grounded；The method of controlling antenna includes:
Judge the peripheral interface of the terminal whether by being not inserted into Status Change as insert state by processing module；
If being judged as YES, pass through processing module control switch module for the initial matching in antenna and multiple matching networks
Network electrical connection is switched to antenna and is electrically connected with the preset matching network in multiple matching networks；The wherein preset matching network
The transmitting frequency range or reception frequency range of the antenna got with the rf processor by terminal match.
As a kind of possible embodiment, in the method for controlling antenna, the peripheral interface of the terminal includes eventually
The earphone interface or USB interface at end.
As a kind of possible embodiment, in the method for controlling antenna, the processing module includes application processing
Device and Communication processor；Whether the peripheral interface that the terminal is judged by processing module is slotting by being not inserted into Status Change
Enter state；If being judged as YES, pass through processing module control switch module for the initial matching in antenna and multiple matching networks
Network electrical connection, which is switched to antenna and is electrically connected with the preset matching network in multiple matching networks, includes:
Judge the peripheral interface of the terminal whether by being not inserted into Status Change as insert state by application processor；
If being judged as YES, Status Change instruction is generated by application processor；Communication control is instructed according to Status Change
Processor obtains the transmitting frequency range for the antenna that rf processor detects or receives frequency range and Communication processor is passed through
Antenna is electrically connected by control interface control switch module with the initial matching network in multiple matching networks is switched to antenna and more
Preset matching network electrical connection in a matching network.
As a kind of possible embodiment, in the method for controlling antenna, the control interface is that universal input is defeated
Outgoing interface (GPIO, General Purpose Input Output) or mobile industry processor interface (MIPI, Mobile
Industry Processor Interface)。
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
The embodiment of the invention discloses ACU antenna control units and method of controlling antenna, in the peripheral interface for detecting terminal
When by being not inserted into Status Change to insert state, control switch module is by the initial matching network in antenna and multiple matching networks
Electrical connection is switched to antenna and is electrically connected with the preset matching network in multiple matching networks, can make antenna and optimal matching
Network electrical connection, to improve antenna radiation efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structure chart of the ACU antenna control unit of an embodiment of the present invention.
Fig. 2 is the structure chart of the processing module of an embodiment of the present invention.
Fig. 3 is the flow chart of the method for controlling antenna of an embodiment of the present invention.
Specific embodiment
The embodiment of the invention discloses a kind of ACU antenna control unit and method of controlling antenna, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
As shown in Figure 1, its structure chart for the ACU antenna control unit 100 of an embodiment of the present invention, ACU antenna control unit
100 are applied to terminal.Terminal in the embodiment of the present invention can be such as smart phone, tablet computer, personal digital assistant
(PDA), the intelligent terminals such as smartwatch.
ACU antenna control unit 100 includes switch module 10, multiple matching networks 20 and processing module 30.Implement in the present invention
In example, the quantity of multiple matching networks 20 shown in Fig. 1 is 4.But in other embodiments of the invention, the multiple
The quantity of distribution network 20 can be 2,3 or 4 or more.
One end of multiple matching networks 20 all passes through switch module 10 and is electrically connected with the antenna 900 of terminal, and the multiple
The other end of distribution network 20 is all grounded.
Processing module 30, for by being not inserted into Status Change being slotting in the peripheral interface (not shown) for detecting the terminal
When entering state, antenna 900 is electrically connected with the initial matching network in multiple matching networks 20 and is switched to by control switch module 10
Antenna 900 is electrically connected with the preset matching network in multiple matching networks 20；Wherein the preset matching network and pass through terminal
The transmitting frequency range of antenna 900 that gets of rf processor (not shown) or receive frequency range and match.
In the infinite embodiment of the present invention, each matching network 20 in the multiple matching network 20 includes capacitor
And/or inductance.Typically, each matching network 20 in the multiple matching network 20 includes capacitor.
The embodiment limited as one, the day that the preset matching network is got with the rf processor by terminal
It includes: the capacitance of the preset matching network and penetrating by terminal that the transmitting frequency range or reception frequency range of line 900, which match,
The transmitting frequency range or reception frequency range for the antenna 900 that frequency processor is got match.
In the infinite embodiment of the present invention, the peripheral interface of the terminal includes that the earphone interface of terminal or USB connect
Mouthful.It should be noted that in the prior art, can have earphone around antenna 900 (such as lower end antenna of terminal)
The peripheral interfaces such as interface and/or USB interface, when peripheral equipment such as earphone insertion earphone interface such as external equipment pass through
When USB data line is inserted into USB interface, it will lead to antenna environment and be deteriorated so as to cause antenna performance variation, namely will lead to antenna
Radiation efficiency decline.
And in the embodiment of the present invention, in the peripheral interface for detecting the terminal by being not inserted into Status Change as insert state
When, antenna 900 is electrically connected with the initial matching network in multiple matching networks 20 and cuts by 30 control switch module 10 of processing module
Antenna 900 is changed to be electrically connected with the preset matching network in multiple matching networks 20；Wherein preset matching network and antenna 900
Transmitting frequency range or reception frequency range match.Therefore, so that antenna 900 is electrically connected with optimal matching network 20, to improve
The radiation efficiency of antenna 900.
Please refer to Fig. 1 and Fig. 2, processing module 30 includes application processor 32 and Communication processor 34.Using processing
Device 32 is electrically connected with Communication processor 34, and Communication processor 34 is electrically connected with the rf processor 800 of terminal, rf processor
800 are electrically connected with antenna 900.
The application processor 32 is used in the peripheral interface for detecting the terminal by being not inserted into Status Change as insertion
When state, Status Change instruction is generated.
The Communication processor 34 is used to instruct the hair for obtaining the antenna that rf processor 800 detects according to Status Change
Radio band or receive frequency range and by control interface control switch module 10 by antenna with it is pre- in multiple matching networks 20
If matching network is electrically connected.
As an infinite embodiment, the control interface is universal input/output interface (GPIO, General
Purpose Input Output) or mobile industry processor interface (MIPI, Mobile Industry Processor
Interface)。
Referring to Fig. 3, its flow chart for the method for controlling antenna 200 of the embodiment of the present invention.Method of controlling antenna 200 is answered
For in ACU antenna control unit 100 namely method of controlling antenna 200 is corresponding with ACU antenna control unit 100.Method of controlling antenna
200 are applied in the terminal including switch module 10, multiple matching networks 20 and processing module 30, the multiple matching network 20
One end all pass through switch module 10 and be electrically connected with the antenna 900 of terminal, the other end of the multiple matching network 900 all connects
Ground.
Method of controlling antenna 200 includes step 202, step 204 and step 206.
Step 202: the insert state of the peripheral interface of terminal is detected by processing module 30.
Step 204: whether the peripheral interface that the terminal is judged by processing module 30 is slotting by being not inserted into Status Change
Enter state.If being judged as YES, 206 are thened follow the steps.If being judged as NO, 202 are returned to step.
Step 206: by 30 control switch module 10 of processing module by antenna 900 with it is initial in multiple matching networks 20
Matching network electrical connection is switched to antenna 900 and is electrically connected with the preset matching network in multiple matching networks 20；It is wherein described pre-
If the transmitting frequency range or reception frequency range of the antenna 900 that matching network is got with the rf processor by terminal match.
In the infinite embodiment of the present invention, the peripheral interface of the terminal includes that the earphone interface of terminal or USB connect
Mouthful.
Judged in the infinite embodiment of the present invention, described in step 204 and step 206 by processing module 30 described
Whether the peripheral interface of terminal is insert state by being not inserted into Status Change；If being judged as YES, controlled by processing module 30
Switch module 10 antenna 900 is electrically connected with the initial matching network in multiple matching networks 20 be switched to antenna 900 with it is multiple
Preset matching network electrical connection in matching network 20 includes: to judge that the peripheral interface of the terminal is by application processor 32
It is no by be not inserted into Status Change be insert state；If being judged as YES, Status Change instruction is generated by application processor 32；Root
According to Status Change instruction communication control processor 34 obtain the transmitting frequency range of antenna 900 that rf processor 800 detects or
It receives frequency range and Communication processor 34 is made to pass through control interface control switch module 10 for antenna 900 and multiple matching networks
Initial matching network electrical connection in 20 is switched to antenna 900 and is electrically connected with the preset matching network in multiple matching networks 20.
As infinite embodiment, the control interface is universal input/output interface (GPIO, General
Purpose Input Output) or mobile industry processor interface (MIPI, Mobile Industry Processor
Interface)。
As a kind of infinite description, the present embodiments relate to antenna technical fields, and in particular to a kind of intelligence day
Line handover scheme.Include traditional antenna feed and match circuit in the antenna switching scheme, while being also included as extended antenna
The tunable switching device of antenna that band bandwidth needs, the tunable switching device include SPST (single-pole single-throw(SPST), SPDT (single
Dpdt double-pole double-throw (DPDT)), SP4T (hilted broadsword four-throw) or variable capacitance, tunable devices control by GPIO or MIPI, by change GPIO or
MIPI state switchs the difference of connected state to realize.
Under normal operating conditions when (i.e. earphone or USB is not inserted into), antenna has been adjusted according to environment locating at this time
It tries, tunable switching device status is fixed.When being inserted into earphone, application processor (AP, Application
Processor it) can know state, instruction is issued by Communication processor (CP, Communication by software
Processor), so that CP controls antenna tunable devices, state change is performed.
Mobile phone frame antenna, by a SP4T switch back ground, return ground access on have connection of electronic devices (capacitive/inductive/
Resistance), for example, in the case where FDD-LTE B3 starts state day line options matching network RF1 switch state, when AP has detected ear
The machine transplanting of rice is fashionable, and antenna performance is because the property of external environment is deteriorated at this time, the electronics device connected this moment on matching network RF1
Part (capacitive/inductive/resistance) is unable to satisfy with the antenna performance under insertion earphone state, needs AP to sending instructions under CP, CP is again
Alteration command is issued to the control unit (passing through GPIO or MIPI) of this duplexer, to be altered to other such as matching network
RF2/RF3/RF4 is upper so that on higher time ground access of antenna radiation efficiency.Such as the example of the original series connection of matching network RF1
Such as 0.5pf capacitor, when earphone insertion aft antenna external environment variation cause at this time capacitance be not best match circuit, by
Antenna active index TRP (total radiated power: total radiant power) and TIS (total are tested in microwave dark room
Istropic sensitivity: total omnidirectional sensitivity) it finds so that such as 1pf capacitor on performance more preferably matching network RF2,
Then Moderm software judges: when AP has detected earphone insertion, AP issues antenna tuning to CP under this working frequency range
The port alteration command of device, to be lifted at the antenna performance under insertion earphone state.It is non-limiting as the embodiment of the present invention
Citing, the initial matching network in multiple matching networks is, for example, matching network RF1, the preset matching in multiple matching networks
Network is, for example, matching network RF2.
To be altered to other as on matching network RF2/RF3/RF4 so that antenna radiation efficiency higher time ground access
On, such as such as 0.5pf capacitor of the original series connection of matching network RF1, when earphone insertion aft antenna external environment variation is led
Capacitance is not best match circuit at this time for cause, and such as 1pf capacitor that can be altered on matching network RF2 makes antenna at this time
Radiation efficiency is higher, and performance is more preferably.
More than earphone insertion can detecte, and USB insertion can also equally detect in this way and change antenna circuit
In tuning switch device used state, the present invention is applicable in the various frequency ranges under all communication standards.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of ACU antenna control unit, which is characterized in that be applied in terminal, the ACU antenna control unit includes:
Switch module；
Multiple matching networks, one end of the multiple matching network all passes through switch module and is electrically connected with the antenna of terminal, described
The other end of multiple matching networks is all grounded；
Processing module, for controlling when it is insert state that the peripheral interface for detecting the terminal is by being not inserted into Status Change
Antenna is electrically connected by switch module with the initial matching network in multiple matching networks to be switched in antenna and multiple matching networks
Preset matching network electrical connection；The antenna that wherein the preset matching network is got with the rf processor by terminal
Transmitting frequency range or reception frequency range match.
2. ACU antenna control unit as described in claim 1, it is characterised in that: the peripheral interface of the terminal includes the ear of terminal
Machine interface or USB interface.
3. ACU antenna control unit as described in claim 1, it is characterised in that: each pair net in the multiple matching network
Network includes capacitor and/or inductance.
4. ACU antenna control unit as described in claim 1, it is characterised in that: the processing module includes application processor and leads to
Interrogate processor；
The application processor is used for when it is insert state that the peripheral interface for detecting the terminal is by being not inserted into Status Change,
Generate Status Change instruction；
The Communication processor be used to being instructed according to Status Change obtain the transmitting frequency range of antenna that rf processor detects or
Person receives frequency range and by control interface control switch module by the initial matching network electricity in antenna and multiple matching networks
Connection is switched to antenna and is electrically connected with the preset matching network in multiple matching networks.
5. ACU antenna control unit as claimed in claim 4, it is characterised in that: the control interface is universal input/output interface
(GPIO, General Purpose Input Output) or mobile industry processor interface (MIPI, Mobile
Industry Processor Interface)。
6. ACU antenna control unit as described in claim 1, which is characterized in that the preset matching network and penetrating by terminal
The transmitting frequency range or reception frequency range for the antenna that frequency processor is got, which match, includes:
The capacitance of the preset matching network and the transmitting frequency range of antenna got by the rf processor of terminal or
Frequency range is received to match.
7. a kind of method of controlling antenna, which is characterized in that applied to including switch module, multiple matching networks and processing module
In terminal, one end of the multiple matching network all passes through switch module and is electrically connected with the antenna of terminal, the multiple pair net
The other end of network is all grounded；The method of controlling antenna includes:
Judge the peripheral interface of the terminal whether by being not inserted into Status Change as insert state by processing module；
If being judged as YES, pass through processing module control switch module for the initial matching network in antenna and multiple matching networks
Electrical connection is switched to antenna and is electrically connected with the preset matching network in multiple matching networks；The wherein preset matching network and logical
It crosses the transmitting frequency range for the antenna that the rf processor of terminal is got or receives frequency range and match.
8. method of controlling antenna as claimed in claim 6, it is characterised in that: the peripheral interface of the terminal includes the ear of terminal
Machine interface or USB interface.
9. method of controlling antenna as claimed in claim 6, it is characterised in that: the processing module includes application processor and leads to
Interrogate processor；It is described to judge the peripheral interface of the terminal whether by being not inserted into Status Change as insertion shape by processing module
State；If being judged as YES, pass through processing module control switch module for the initial matching network in antenna and multiple matching networks
Electrical connection, which is switched to antenna and is electrically connected with the preset matching network in multiple matching networks, includes:
Judge the peripheral interface of the terminal whether by being not inserted into Status Change as insert state by application processor；
If being judged as YES, Status Change instruction is generated by application processor；Communication control processing is instructed according to Status Change
Device obtains the transmitting frequency range for the antenna that rf processor detects or receives frequency range and Communication processor is made to pass through control
Antenna is electrically connected with the initial matching network in multiple matching networks and is switched to antenna and multiple by interface control swith module
Preset matching network electrical connection in distribution network.
10. method of controlling antenna as claimed in claim 9, it is characterised in that: the control interface is that universal input output connects
Mouth (GPIO, General Purpose Input Output) or mobile industry processor interface (MIPI, Mobile
Industry Processor Interface)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810595042.2A CN109039348B (en) | 2018-06-11 | 2018-06-11 | Antenna control method and antenna control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810595042.2A CN109039348B (en) | 2018-06-11 | 2018-06-11 | Antenna control method and antenna control device |
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| CN109039348A true CN109039348A (en) | 2018-12-18 |
| CN109039348B CN109039348B (en) | 2020-11-06 |
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| CN201810595042.2A Active CN109039348B (en) | 2018-06-11 | 2018-06-11 | Antenna control method and antenna control device |
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| CN109495119A (en) * | 2018-12-28 | 2019-03-19 | Tcl移动通信科技（宁波）有限公司 | A kind of RF switch control method, device, mobile terminal and storage medium |
| CN110971762A (en) * | 2019-12-09 | 2020-04-07 | 歌尔科技有限公司 | Communication frequency setting method, earphone, base and cordless communication device |
| CN112134992A (en) * | 2019-06-25 | 2020-12-25 | 北京小米移动软件有限公司 | Terminal device and control method thereof |
| CN113099028A (en) * | 2021-03-09 | 2021-07-09 | 惠州Tcl移动通信有限公司 | Mobile phone-based antenna tuner adjusting method and device, terminal equipment and medium |
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| CN113099028A (en) * | 2021-03-09 | 2021-07-09 | 惠州Tcl移动通信有限公司 | Mobile phone-based antenna tuner adjusting method and device, terminal equipment and medium |
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| Publication number | Publication date |
|---|---|
| CN109039348B (en) | 2020-11-06 |
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