CN105304999B - Coupling device, antenna assembly, electronic equipment and control method - Google Patents
Coupling device, antenna assembly, electronic equipment and control method Download PDFInfo
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- CN105304999B CN105304999B CN201510698994.3A CN201510698994A CN105304999B CN 105304999 B CN105304999 B CN 105304999B CN 201510698994 A CN201510698994 A CN 201510698994A CN 105304999 B CN105304999 B CN 105304999B
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Abstract
Provide a kind of coupling device, antenna assembly, electronic equipment and control method.The coupling device includes: coupled apparatus, including input, output end and coupled end, input signal for will enter into the input terminal is divided into output signal and coupled signal, and exports the output signal from the output end, exports the coupled signal from the coupled end；Switching device is couple to the coupled end of the coupled apparatus, for switching the transmission channel of the coupled signal exported from the coupled end.Using the technical solution of the embodiment of the present disclosure, influence of the radiofrequency signal separated from coupling device to other devices can reduce, to improve the applicability of coupling device.
Description
Technical field
This disclosure relates to electronic technology field, more particularly, to a kind of coupling device, antenna assembly, electronic equipment and
Control method.
Background technique
With the development of communication technology, computer, personal digital assistant, mobile communication terminal, audio player etc.
Each class of electronic devices can transmit and/or receive data using antenna, to greatly facilitate information and data
Transmission.The performance of information transmission will be greatly influenced in the performance for the radiofrequency signal that transmitting terminal is sent.It to be sent to detect
The performance of radiofrequency signal generallys use demultiplexer and isolates a part from the radiofrequency signal to be sent, and is based on dividing
From radiofrequency signal determine the performance of the radiofrequency signal to be sent.
Coupler be can use as the demultiplexer.The coupler can be according to predetermined ratio by the radio frequency of input
Signal is divided into the radiofrequency signal of two-way output.The power of the radiofrequency signal of two-way output can be with the function of the radiofrequency signal of input
Rate variation.When the power of the radiofrequency signal of input becomes larger, the power of the radiofrequency signal of two-way output increases.When the radio frequency of input
When the power of signal becomes smaller, the power of the radiofrequency signal of two-way output is reduced.In the electronic device, in disparate modules or access
Radiofrequency signal may influence each other, to reduce the quality of radiofrequency signal.For example, when the letter of radio frequency all the way exported from coupler
When number back in electronic equipment, if the power of the radiofrequency signal returned is bigger, it may influence in electronic equipment
The work of the device adjacent with the radiofrequency signal returned.For example, the radiofrequency signal returned may influence in electronic equipment
The work of clock circuit, to greatly damage the performance of electronic equipment.
Summary of the invention
The embodiment of the present disclosure provides a kind of coupling device, antenna assembly, electronic equipment and control method, can reduce
Influence of the radiofrequency signal separated from coupling device to other devices, to improve the applicability of coupling device.
In a first aspect, providing a kind of coupling device, it is applied to an electronic equipment.The coupling device can include: coupler
Part, including input, output end and coupled end, the input signal for will enter into the input terminal are divided into output signal
And coupled signal, and the coupled signal is exported from the output end output output signal, from the coupled end；Switch
Part is couple to the coupled end of the coupled apparatus, for switching the transmission channel of the coupled signal exported from the coupled end.
With reference to first aspect, in a kind of implementation of first aspect, the coupled apparatus may also include isolation end, institute
It states isolation end and is connected to ground via an absorbing load.
With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the switching device
The coupled end can be connected to the isolation end, the coupled signal is transmitted to the absorbing load.
With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the switching device
It can be switch, for the coupled end of the coupled apparatus to be used to selectively connect to the first transmission channel and the second transmission channel
In one.
With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, coupling device may be used also
Including control unit.The control unit is connected to the switching device, for the different Working moulds according to the electronic equipment
Formula controls the handover operation of the switching device.The operating mode includes wherein into the power of the input signal of input terminal
Greater than the high power mode of predetermined value.
With reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, the electronic equipment
It can be communication equipment, first transmission channel can be the access that ground is connected to via absorbing load.Described control unit
Can include: detection module, for detecting whether the communication equipment is in global system for mobile communications GSM mode；Control module,
For controlling the switching device for the coupled end when the communication equipment is in global system for mobile communications GSM mode
It is connected to the first transmission channel, and when the communication equipment is not at global system for mobile communications GSM mode, described in control
The coupled end is connected to the second transmission channel by switching device.
Second aspect provides a kind of antenna assembly, is applied to an electronic equipment.The antenna assembly can include: antenna list
Member, for radiating and receiving antenna signal；Coupled apparatus, including input, output end and coupled end, the input terminal are connected to
Signal transceiver in electronic equipment, the output end are connected to the antenna element, and the coupled end is used for via antenna list
The a part for the aerial signal to be radiated is exported when first radiating antenna signal；Switching device is couple to the coupling of the coupled apparatus
End is closed, for switching the connection of the coupled end from different transmission channels, to want via described in different transmission channel transmission
A part of the aerial signal of radiation.
In conjunction with second aspect, in a kind of implementation of second aspect, the coupled apparatus may also include isolation end, institute
It states isolation end and is connected to ground via an absorbing load.
In conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, the switching device
It can be switch, for the coupled end of the coupled apparatus to be used to selectively connect to the first transmission channel and the second transmission channel
In one.
In conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, antenna assembly may be used also
Including control unit.The control unit is connected to the switching device, for being controlled according to the operating mode of the electronic equipment
The handover operation of the switching device is made, the operating mode includes the output power of the wherein sender unit greater than predetermined
The high power mode of value.
In conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, first transmission
Access can be the access that ground is connected to via absorbing load, and second transmission channel can be for being connected to for detecting
The access of the power detecting unit of the power for the signal to be radiated.Described control unit can include: detection module, for detecting
State whether electronic equipment is in global system for mobile communications GSM mode；Control module, for being in the whole world in the electronic equipment
When mobile communication system GSM mode, the switching device is controlled by the coupled end and is connected to first transmission channel, and
When the electronic equipment is not at global system for mobile communications GSM mode, controls the switching device and connect the coupled end
It is connected to second transmission channel.
In conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, the antenna assembly
It may also include that front-end module, first end is connected to the input terminal of the coupled apparatus, and second end is connected to the signal transmitting and receiving
The transmitting terminal of device, third end are connected to the receiving end of the signal transceiver.
The third aspect provides a kind of electronic equipment.The electronic equipment includes: antenna assembly as described above；Signal is received
Device is sent out, the input terminal of the coupler in the antenna assembly is connected to；Power detecting unit is connected to the switching device and is
The coupled signal exported from coupled end forms transmission channel.
Fourth aspect provides a kind of control method, is applied to an electronic equipment.The electronic equipment include coupled apparatus and
Switching device.The coupled apparatus includes input, output end and coupled end, for will enter into the input of the input terminal
Signal is divided into output signal and coupled signal, and exports the output signal from the output end, exports from the coupled end
The coupled signal.The switching device is couple to the coupled end.The control method can include: detect the electronic equipment
Operating mode, obtain a testing result；And the switching device is controlled based on the testing result, to switch from described
The transmission channel of the coupled signal of coupled end output.
In conjunction with fourth aspect, in a kind of implementation of fourth aspect, the electronic equipment may include sender unit,
The operating mode of the detection electronic equipment can include: whether the operating mode for detecting the electronic equipment is wherein described
The output power of sender unit is greater than the high power mode of predetermined value.
In conjunction with fourth aspect and its above-mentioned implementation, in another implementation of fourth aspect, the transmission channel
It may include being connected to first transmission channel on ground via absorbing load and being connected to the power for detecting the signal to be radiated
Second transmission channel of power detecting unit, the high power mode are global system for mobile communications GSM modes, described to be based on institute
Testing result is stated to control the switching device can include: be in global system for mobile communications GSM mode in the electronic equipment
When, the switching device, which is controlled, by the coupled end is connected to first transmission channel；And do not locate in the electronic equipment
When global system for mobile communications GSM mode, controls the switching device and the coupled end is connected to described second and transmitted and lead to
Road.
In the technical solution of the above-mentioned coupling device of the embodiment of the present disclosure, antenna assembly, electronic equipment and control method,
Switching device is set by the coupled end in coupled apparatus, and controls the biography of exported coupled signal using the switching device
Defeated access can reduce influence of the radiofrequency signal separated from coupling device to other devices, to improve coupling device
Applicability.
Detailed description of the invention
It, below will be in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the embodiment of the present disclosure
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the disclosure
Example is applied, for those of ordinary skill in the art, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is to schematically illustrate the structural block diagram of the first coupling device according to the embodiment of the present disclosure；
Fig. 2 schematically shows the structure of directional coupler；
Fig. 3 is to schematically illustrate the structural block diagram of the second coupling device according to the embodiment of the present disclosure；
Fig. 4 is to schematically illustrate the structural block diagram of the third coupling device according to the embodiment of the present disclosure；
Fig. 5 is to schematically illustrate the structural block diagram of the first antenna device according to the embodiment of the present disclosure；
Fig. 6 is to schematically illustrate the structural block diagram of the second antenna assembly according to the embodiment of the present disclosure；
Fig. 7 is to schematically illustrate the flow chart of the control method according to the embodiment of the present disclosure.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present disclosure, the technical solution in the embodiment of the present disclosure is carried out clear, complete
Site preparation description, it is clear that described embodiment is disclosure a part of the embodiment, instead of all the embodiments.
Typical coupler believes the radio frequency that the power divider of the radiofrequency signal of input is two output according to predetermined ratio
Number, such as output signal and coupled signal.The power of the radiofrequency signal of two-way output can be with the power of the radiofrequency signal of input
Variation.What the performance of coupler was usually fixed.Coupler is used to separate a part from radiofrequency signal to carry out signal detection,
To monitor the performances such as signal frequency, the power of the radiofrequency signal that input.But electronic module locating for coupler or electronic equipment
Working condition may be variation.When the variation due to working condition is without using the coupled signal exported from coupler
When, which may interfere the other signals in electronic module or electronic equipment.Moreover, exported from coupler
Coupled signal is likely to be used for different purposes.
In the coupling device of the embodiment of the present disclosure, switching device is arranged by the coupled end in coupled apparatus, and utilize
The switching device controls the transmission channel of exported coupled signal, can reduce the radiofrequency signal separated from coupling device
Influence to other devices, to improve the applicability of coupling device.
Fig. 1 is to schematically illustrate the structural block diagram of the first coupling device 100 according to the embodiment of the present disclosure.First coupling
It attaches together and sets 100 and can be applied to various electronic equipments, including but not limited to communication equipment, electrical equipment, power supply unit etc..
As shown in Figure 1, first coupling device 100 includes: coupled apparatus 110, including input terminal IN, output end OUT and
Coupled end COUP, the input signal for will enter into the input terminal are divided into output signal and coupled signal, and from described
Output end OUT exports the output signal, exports the coupled signal from the coupled end COUP；With switching device 120, coupling
To the coupled end COUP of the coupled apparatus, for switching the transmission channel from the coupled end COUP coupled signal exported.
As shown in Figure 1, coupled apparatus 110 includes input terminal IN, output end OUT and these three ports coupled end COUP.When
It when input signal is inputted from input terminal IN, is exported from output end OUT, has a small amount of output in coupled end 3.
Coupled apparatus 110 is the radio-frequency devices that sub-fraction signal is extracted from radiofrequency signal trunk channel.Ideal coupling
The sum of the power of the power of the input terminal IN of the clutch power equal to output end OUT and coupled end COUP.The weight of coupled apparatus 110
Wanting parameter is the degree of coupling and Insertion Loss.The degree of coupling is the power ratio with input terminal IN of the power of output end OUT, is indicated with dB
Words, usually negative value.The Insertion Loss of coupled apparatus 110 is the power ratio of input terminal IN Yu output end OUT.The absolute value of the degree of coupling
Bigger, the absolute value of Insertion Loss is smaller.After coupled apparatus has been produced, what the degree of coupling and Insertion Loss were usually fixed.However,
As previously mentioned, when the variation of the working condition for the electronic equipment that coupled apparatus is applied to, it may be necessary to adjust from coupler
The coupled signal of coupled end output.Otherwise, the coupled signal may cause interference.
Coupled apparatus 110 can be directional coupler, waveguide coupler, double branch couplers etc., and the type of coupler is not
Constitute the limitation to the embodiment of the present disclosure.Fig. 2 schematically shows the structure of directional coupler.There are four ends for directional coupler tool
Mouthful, port 1, port 2, port 3, the port 4 marked such as Fig. 2.When port 1 is used as input terminal IN to receive input signal,
Port 2 is output end OUT, and port 3 is coupled end COUP, and port 4 is isolation end.For ideal directional coupler, work as input
When signal is inputted from port 1, major part is exported from port 2, has a small amount of output in port 3, port 4 is without output.In general, fixed
To between the input terminal IN and isolation end of coupler have good isolation.In addition, the structure of directional coupler has symmetrically
Property, such as input terminal IN and isolation end can be interchanged.When input signal is inputted from port 4 (i.e. input terminal IN) shown in Fig. 2,
The most of of input signal exports from port 3 (i.e. output end OUT), does not export in input terminal 1 (i.e. isolation end), and is holding
There is a small amount of output in 2 (i.e. coupled end COUP) of mouth.
It should be noted that having isolation end in the directional coupler of Fig. 2, but may not be isolated in other couplers
End, such as isolation end may be set in the case where coupler 110 is double branch couplers.Coupled apparatus 110 further include every
In the case where from end, the isolation end can be connected to ground via an absorbing load.In ideal coupled apparatus, in isolation end
There is no signal output, but in actual coupled apparatus, is exported in isolation end or signal, the power of the signal output of isolation end
Less than the output power of coupled end COUP.The signal exported from isolation end can be absorbed in the absorbing load, to further mention
Rise the performance of coupled apparatus 110.Alternatively, the isolation end can also be coupled directly to ground.The absorbing load is, for example, to have
There is the resistor of power consumption.
Switching device 120 in Fig. 1 is couple to the coupled end COUP of the coupled apparatus 110, for switching from the coupling
Close the transmission channel of the coupled signal of end COUP output.As shown in figure 1, switching device 120 be connected to the first transmission channel PATH1 and
Second transmission channel PATH2.The coupled end COUP of coupled apparatus 110 can be used to selectively connect to first by switching device 120
One of transmission channel PATH1 and the second transmission channel PATH2.In this way, the first transmission channel PATH1 and the second transmission channel
PATH2 may be coupled to the disparate modules or different components for the electronic equipment that coupling device 100 is applied to.
When the working condition of electronic equipment changes, the switching device 120 can use by the coupled end of coupled apparatus 110
COUP is connected to different transmission channels.For example, the first transmission channel PATH1 can be attached to the tester of electronic equipment
Part, to carry out signal testing when electronic equipment is in test mode；Second transmission channel PATH2 can be attached to electronics and set
The access of power detector in standby, to carry out signal detection when electronic equipment is in running order.First transmission channel
The electronic device that PATH1 and the second transmission channel PATH2 are connected to does not constitute the limitation to the embodiment of the present disclosure.
In Fig. 1, it illustrate only two transmission channels.In practice, the number of transmission channel can be three, even
More, and it can according to need and be appropriately arranged with.Furthermore, it is possible to using RF switch as the switching device 120, it will
Coupled end COUP is used to selectively connect to specific transmission channel.When there are two transmission channel, switching device 120 can be 1
× 2 RF switch；When there are three transmission channel, switching device 120 can be 1 × 3 RF switch, and so on.
In the technical solution of the above-mentioned coupling device of the embodiment of the present disclosure, cut by the coupled end setting in coupled apparatus
Parallel operation part, and the transmission channel of exported coupled signal is controlled using the switching device, it can reduce from coupling device
Influence of the radiofrequency signal separated to other devices, to improve the applicability of coupling device.
Fig. 3 is to schematically illustrate the structural block diagram of the second coupling device 300 according to the embodiment of the present disclosure.Fig. 3's
In second coupling device 300, device identical with the first coupling device 100 of Fig. 1 is indicated using identical appended drawing reference, and
It may refer to the description carried out above in conjunction with Fig. 1 and Fig. 2.
Relative to Fig. 1, the coupled apparatus 110 in the second coupling device 300 in Fig. 3 is in addition to including input terminal IN, output
It holds except OUT and coupled end COUP, further includes isolation end ISOL.The isolation end ISOL is connected to ground via an absorbing load.
Switching device 120 is 1 × 2 switch, for the coupled end COUP of coupled apparatus 110 to be used to selectively connect to the first transmission channel
One in PATH1 and the second transmission channel PATH2.
As shown in figure 3, the first transmission channel PATH1 is the access for being connected to ground via absorption resistance.As an example, second
Transmission channel PATH2 can be attached to the access of the power detector in electronic equipment.When needing to detect coupled apparatus 110
When the power of input signal, coupled end COUP is connected to the second transmission channel PATH2 by the switching device 120.When not needing
When detecting the power of the input signal of coupled apparatus 110, coupled end COUP is connected to the first transmission and led to by the switching device 120
Road PATH1.In the case where the first transmission channel PATH1 is to be connected to the access on ground via absorption resistance, the switching device
The coupled end COUP is connected to the isolation end ISOL by 120, and the coupled signal is transmitted to the absorbing load.This
When, the coupled end COUP and isolation end ISOL of switching device 120 share the absorbing load, which not only can be absorbed
The isolation signals exported from isolation end ISOL, can also absorb the coupled signal exported from coupled end COUP, to avoid described
Signal interference caused by isolation signals and coupled signal the two.
Whether need to detect the power of the input signal of coupled apparatus 110 for example depending on the working condition of electronic equipment.
In the case where not needing the power of input signal of detection coupled apparatus 110, if the power of input signal is very big, cause
The coupled signal of coupled end COUP may interfere other circuits.Correspondingly, by switching device 120 by coupled end COUP
It is connected to the first transmission channel PATH1, it can interference to avoid the coupled signal exported from coupled end COUP to other signals.
Fig. 4 is to schematically illustrate the structural block diagram of the third coupling device 400 according to the embodiment of the present disclosure.Fig. 4's
In third coupling device 400, device identical with the second coupling device of Fig. 3 is indicated using identical appended drawing reference, and can
Referring to the description carried out above in conjunction with Fig. 1 to Fig. 3.
In Fig. 4, third coupling device 400 is other than including above-mentioned coupled apparatus 110 and switching device 120, also
Including control unit 130.As shown in figure 4, the control unit 130 is connected to the switching device 120, for according to the electronics
The different operating modes of equipment control the handover operation of the switching device.That is, control unit 130 is according to electronics
The operating mode of equipment controls the switching device and switches between different transmission channels.
The operating mode includes the high power mode for being wherein greater than predetermined value into the power of the input signal of input terminal.
When the power of the input signal into input terminal IN is very big, the power of the coupled signal exported from coupled end COUP is also larger.
If the coupled end COUP is also connected to the power detector of the second transmission channel PATH2, the coupled signal may be through
It crosses the power detector and is crosstalked into clock circuit, to be interfered to clock signal.As an example, being set in the electronics
Standby is in the communication equipment of such as mobile phone, and the high power mode can be the global system for mobile communications (GSM) of communication equipment
Mode.Correspondingly, control unit 130 controls switching device 120 and coupled end COUP is connected to the first transmission channel PATH1, can
Interference to avoid the coupled signal exported from coupled end COUP to other signals.The control unit 130 typically can use
Processor and memory are realized.The memory storage control program code, when the processor executes said program code
When switching device 120 is controlled.
As shown in figure 4, described control unit 130 can include: detection module 131, for whether detecting the communication equipment
In high power mode (for example, GSM mode)；Control module 132 is used for when the communication equipment is in high power mode,
It controls the switching device 120 and the coupled end COUP is connected to the first transmission channel PATH1, and in the communication equipment
When being not at high power mode, the switching device 120 is controlled by the coupled end COUP and is connected to the second transmission channel
PATH2.Detection module 131 for example obtains the information about its operating mode from the operating system of communication equipment, to determine communication
Whether equipment is in high power mode.
When the transmission channel difference that switching device 120 is connected to, the detection module needs to detect different information,
To execute control according to control information detected by control module 132.For example, being connected to electricity in the first transmission channel PATH1
In the case where test device, the second transmission channel PATH2 of sub- equipment are connected to the power detector in electronic equipment, mould is detected
It is in test pattern or normal mode of operation that block 131, which can detecte electronic equipment,.When detection module 131 detects that electronics is set
When for being in test pattern, control module 132 controls switching device 120 and is connected to the first transmission channel PATH1.Work as detection module
131 when detecting that electronic equipment is in normal mode of operation, and control module 132 controls switching device 120 and is connected to the second transmission
Access PATH2.
After the embodiment of coupling device disclosed above, any electronic equipment including the coupling device is also in
The open scope of the embodiment of the present disclosure.
Fig. 5 is to schematically illustrate the structural block diagram of the first antenna device 500 according to the embodiment of the present disclosure.First antenna
Device 500 can be applied to various electronic equipments, including but not limited to communication equipment, electrical equipment, power supply unit etc..
As shown in figure 5, first antenna device 500 can include: antenna element 510, for radiating and receiving antenna signal；Coupling
Clutch part 110, including input terminal IN, output end OUT and coupled end COUP；Switching device 120 is couple to the coupled apparatus
110 coupled end COUP.
Antenna element 510 can be the antenna realized using any technology, such as microstrip antenna, unipole antenna, annular day
Line etc..The antenna element 510 can also include two or more sub-antennas, and each sub-antenna can be located at the difference of electronic equipment
Position.The type of antenna element 510 and setting in the electronic device do not constitute the limitation to the embodiment of the present disclosure.
The input terminal IN of coupled apparatus 110 is connected to the signal transceiver TRX in electronic equipment.Coupled apparatus 110 it is defeated
Outlet OUT is connected to the antenna element 510.The coupled end COUP is used for via 510 radiating antenna signal of antenna element
When export the aerial signal to be radiated a part.The connection type of switching device 120 is identical as the description of Fig. 1 is combined, i.e. coupling
It is connected to the coupled end COUP of the coupled apparatus 110, for switching the connection of the coupled end COUP and different transmission channels,
Via a part of the aerial signal to be radiated described in different transmission channel transmission.
Switching device 120 is connected to the first transmission channel PATH1 and the second transmission channel PATH2.Switching device 120 is for example
It is switch, it is logical for the coupled end of the coupled apparatus to be used to selectively connect to the transmission of the first transmission channel PATH1 and second
One of road PATH2.For example, the first transmission channel PATH1 can be attached to the test device of electronic equipment, in electronic equipment
Signal testing is carried out when in test mode；Second transmission channel PATH2 can be attached to the power detection in electronic equipment
The access of device, to carry out signal detection when electronic equipment is in running order.About coupled apparatus 110 and switching device 120,
It may refer to the diagram of the description and Fig. 1-4 that carry out above in conjunction with Fig. 1 to Fig. 4.
In transmitting antenna signal, signal transceiver TRX exports the aerial signal to be emitted, the aerial signal quilt to be emitted
It is supplied to the input terminal IN of coupled apparatus 110, and the major part of aerial signal is supplied to antenna list via its output end OUT
Member 510, to launch via antenna element 510.The a part for the aerial signal to be emitted is also via the coupling of coupled apparatus 110
End COUP output is closed, with the frequency test etc. of power or progress aerial signal for detecting the aerial signal to be emitted.
In receiving antenna signal, received aerial signal is supplied to output end OUT shown in fig. 5 by antenna element 510.
As previously mentioned, coupled apparatus 110 has symmetry, when the received aerial signal of institute is input into output end OUT, institute is received
The most of of aerial signal exports from input terminal IN, and is provided to signal transceiver TRX.At this point, the coupling of coupled apparatus 110
End COUP becomes isolation end, and only minimal amount of signal exports.
When electronic equipment is worked using time-multiplexed mode, coupled apparatus 110 can pass through a signal path and letter
Number transceiver TRX.When electronic equipment is worked by the way of frequency division multiplexing or code division multiplexing, the needs of coupled apparatus 110 pass through
Two signal paths and signal transceiver TRX, all the way for from signal transceiver TRX to coupled apparatus 110 transmitting signal, one
Road can use front-end module specifically for reception signal from coupled apparatus 110 to signal transceiver TRX to realize,
It is further described below in conjunction with Fig. 6.
Fig. 6 is to schematically illustrate the structural block diagram of the second antenna assembly 600 according to the embodiment of the present disclosure.Such as Fig. 6 institute
Show, the coupled apparatus 110 further includes isolation end ISOL.Isolation end ISOL is connected to ground via an absorbing load.Actual
In coupled apparatus, there is signal output in isolation end ISOL, although power very little.The power of the signal output of isolation end ISOL is less than
The output power of coupled end COUP.The signal exported from isolation end can be absorbed in the absorbing load, to further promote coupling
The performance of clutch part 110.The isolation end ISOL can also be coupled directly to ground.The absorbing load e.g. has high-power
The resistor of consumption.
In Fig. 6, made using the transceiver (hereinafter simply referred to as WTR255 transceiver) of the model WTR255 of Qualcomm
For the signal transceiver TRX in Fig. 5.The WTR255 transceiver has transmitting terminal TX, receiving end RX and feedback end TX_FBRX.Hair
Sending end TX is for launching the radiofrequency signal to be sent.Receiving end RX is for receiving through radiofrequency signal received by antenna.Feedback
End TX_FBRX, which is used to receive when transmitting terminal TX emits radiofrequency signal, passes through what a part that coupled apparatus 110 separates to be sent
Radiofrequency signal, to detect frequency, the power etc. of the radiofrequency signal to be sent.
Antenna assembly 600 in Fig. 6 further includes front-end module 520.Front-end module 520 is used for the WTR255 transceiver
It is connected to the coupled apparatus 110.Front-end module 520 typically comprises switch and radio-frequency filter, for realizing aerial signal
Reception and transmitting switching.In addition, front-end module 520 can also have Frequency Band Selection, for received radiofrequency signal and
Transmitting and radiofrequency signal are filtered.The second antenna assembly 600 of Fig. 6 realizes aerial signal using front-end module 520
The switching for receiving and emitting.The first end of front-end module 520 is connected to the input terminal IN of the coupled apparatus 110.Front-end module
520 second end is connected to the transmitting terminal of the signal transceiver, such as the transmitting terminal TX of WTR255 transceiver.Front-end module
520 third end is connected to the transmitting terminal of the signal transceiver, such as the receiving end RX of WTR255 transceiver.
In Fig. 6, the first transmission channel PATH1 is the access that ground is connected to via absorption resistance, the second transmission channel
PATH2 is connected to the feedback end TX_FBRX of WTR255 transceiver.When the power for the input signal for needing to detect coupled apparatus 110
When, coupled end COUP is connected to the second transmission channel PATH2 by the switching device 120.When do not need detection coupled apparatus 110
Input signal power when, coupled end COUP is connected to the first transmission channel PATH1 by the switching device 120.First
In the case where transmission channel PATH1 is the access for being connected to ground via absorption resistance, the switching device 120 is by the coupled end
COUP is connected to the isolation end ISOL, and the coupled signal is transmitted to the absorbing load.The coupled end COUP and
Isolation end ISOL shares the absorbing load, which not only can be absorbed the isolation signals exported from isolation end ISOL,
The coupled signal exported from coupled end COUP can also be absorbed, to avoid caused by the isolation signals and coupled signal the two
Signal interference.
Similarly with the description of combination Fig. 3, the second antenna assembly 600 of Fig. 6 also may include control unit 130.The control
Unit 130 processed is connected to the switching device, for controlling the switching device according to the operating mode of the electronic equipment
Handover operation, the operating mode include the wherein sender unit output power be greater than predetermined value high-power mould
Formula can also include the test pattern for testing the electronic equipment.Described control unit 130 may include detection module 131
With control module 132.About control unit 130, the description for combining Fig. 4 to carry out may refer to.
In transmitting antenna signal, the transmitting terminal TX of WTR255 transceiver exports the aerial signal to be emitted, via before this
End module 520 is supplied to the input terminal IN of coupled apparatus 110, the aerial signal that the output end OUT of coupled apparatus 110 will emit
Major part be supplied to antenna element 510, to launch via antenna element 510.The coupled end COUP of coupled apparatus 110 will
The sub-fraction for the aerial signal to be emitted is output to switching device 120.Detection module in control unit 130 detects electricity
When sub- equipment is high power mode (for example, the GSM mode for not needing the emitted radiofrequency signal of detection), switching device is controlled
The coupled end is connected to the first transmission channel PATH1 by 120.Detection module in control unit 130 detects electricity
When sub- equipment is not high power mode (the CDMA mode for needing to detect emitted radiofrequency signal), control switching device 120 will
The coupled end is connected to the second transmission channel PATH2.Second transmission channel PATH2 connects the output of coupled end COUP
To the feedback end TX_FBRX of WTR255 transceiver, with the power for detecting the aerial signal to be emitted or antenna letter is carried out
Number frequency test etc..
In receiving antenna signal, received aerial signal is supplied to output end OUT shown in fig. 5 by antenna element 510,
The most of of received aerial signal exported from input terminal IN, and be provided to front-end module 520, which holds
Row switches and the aerial signal from input terminal IN is supplied to signal transceiver TRX.At this point, the coupled end of coupled apparatus 110
COUP becomes isolation end, and only minimal amount of signal exports；The isolation end ISOL of coupled apparatus 110 becomes coupled end,
The signal therefrom exported is absorbed via absorption resistance, will not be interfered to adjacent signal.In receiving antenna signal
In the process, it may not be necessary to detect the power of aerial signal, control unit 130 can control switching device 120 for coupled end
COUP is connected to the first transmission channel PATH1.The first transmission channel PATH1 is connected to ground via absorbing load, will not be to phase
Adjacent signal interferes.
In the above-mentioned first antenna device of the embodiment of the present disclosure and the technical solution of the second antenna assembly, by coupling
Switching device is arranged in the coupled end of device, and the transmission channel of exported coupled signal, energy are controlled using the switching device
Influence of the radiofrequency signal separated from coupling device to other devices is enough reduced, to improve the applicability of coupling device.
After the embodiment of each antenna assembly disclosed above, the electronic equipment of any antenna assembly is also all located
In the open scope of the embodiment of the present disclosure.For example, electronic equipment is other than including the antenna assembly in Fig. 5 or Fig. 6, it can be with
Including signal transceiver and power detecting unit.Signal transceiver is connected to the input terminal of the coupler in the antenna assembly.
Specifically, signal transceiver can be directly connected to the input terminal of coupler as shown in Figure 5, or can as shown in Figure 6 via
Front-end module is connected to the input terminal of coupler.Power detecting unit is connected to the switching device and is to export from coupled end
Coupled signal forms transmission channel.
Fig. 7 is to schematically illustrate the flow chart of the control method 700 according to the embodiment of the present disclosure.The control method 700
It can be applied to an electronic equipment, including but not limited to communication equipment, electrical equipment, power supply unit etc..The electronic equipment includes coupling
It attaches together and sets.The coupling device includes coupled apparatus and switching device.The coupled apparatus includes input, output end and coupling
End, the input signal for will enter into the input terminal are divided into output signal and coupled signal, and defeated from the output end
Out the output signal, from the coupled end export the coupled signal.The switching device is couple to the coupled end.The coupling
It attaches together to set and can be coupling device as shown in Figure 1, can also be such as Fig. 3 or coupling device shown in Fig. 4
As shown in fig. 7, the control method 700 can include: the operating mode for detecting the electronic equipment obtains a detection
As a result (S710)；And the switching device is controlled based on the testing result, to switch the coupling exported from the coupled end
Close the transmission channel (S720) of signal.
When the variation of the working condition of the electronic equipment, it may be necessary to adjust the coupled end from the coupler of electronic equipment
The transmission channel of the coupled signal of output.Otherwise, the coupled signal may cause interference.Therefore, 700 base of control method
The operation of switching device is controlled in the operating mode of electronic equipment, to select suitable transmission channel for coupled signal.
Test pattern, high power mode, communication pattern of the operating mode of the electronic equipment for example including electronic equipment
Deng.The test pattern is the mode for being tested electronic equipment.The high power mode is the hair in electronic equipment
The mode for sending signal power transmitted by device to be greater than predetermined value.Communication pattern is, for example, GSM mode, CDMA mode etc..For not
Same electronic equipment, the operating mode to be detected may also be different.
The operating mode of the electronic equipment is detected in S710.It, can be with depending on the mode division mode of electronic equipment
Different modes is taken to detect the operating mode of electronic equipment.For example, for the high power mode, using power detection
Signal power transmitted by transmitter of the device detection from electronic equipment, and using comparator by signal power detected and in advance
Definite value compares, and when signal power detected is greater than predetermined value, determines that electronic equipment is in high power mode；When being detected
Signal power be less than or equal to predetermined value when, determine that electronic equipment is not at high power mode.It, can be from electricity for communication pattern
It is used to control the module reception pattern command information of communication pattern in sub- equipment, and electricity is determined according to the mode instruction information
The operating mode of sub- equipment.
In S720, the switching device is controlled based on the testing result, is exported with switching from the coupled end
The transmission channel of coupled signal.That is, can use the switching device for coupling when the working condition of electronic equipment changes
The coupled end of clutch part is connected to different transmission channels.Assuming that transmission channel includes that the first transmission channel and the second transmission are logical
Road.
As an example, the first transmission channel can be attached to the test device of electronic equipment, to be in electronic equipment
Signal testing is carried out when test mode；Second transmission channel can be attached to the access of the power detector in electronic equipment,
To carry out signal detection when electronic equipment is in normal operating conditions.In S720, indicate that the electronics is set in testing result
When for being in test pattern, the switching device is controlled by the coupled end and is connected to first transmission channel；And institute
When stating electronic equipment and being not at test pattern, when for instance in normal mode of operation, the switching device is controlled by the coupling
End is connected to second transmission channel.The normal work may include GSM mode, CDMA mode etc..
In addition, the first transmission channel can also be the access and the second transmission channel for being connected to ground via absorbing load
It can also be the access for being connected to power detecting unit.The operating mode of electronic equipment detected includes global mobile communication system
System GSM mode, time division multiple acess TDMA mode and CDMA CDMA mode.In S720, the electronics is indicated in testing result
When equipment is in GSM mode, the switching device is controlled by the coupled end and is connected to first transmission channel；And institute
When stating electronic equipment and being not at GSM mode, that is, when being in TDMA mode or CDMA mode, controlling the switching device will be described
Coupled end is connected to second transmission channel.Relative to TDMA mode and CDMA mode, transmitter in GSM mode it is defeated
Power is larger out.Correspondingly, which is also considered high power mode.
Control method 700 as described in Figure 7 can be executed using the control unit 130 in Fig. 4.Described control unit is for example
It is processor, such as from memory calls program code, and realizes the control method by executing said program code
700。
In the technical solution of the above-mentioned control method of the embodiment of the present disclosure, cut by the coupled end setting in coupled apparatus
Parallel operation part, and the transmission channel of exported coupled signal is controlled by controlling the switching device, it can control as needed
The use of the coupled signal exported from coupled apparatus, to improve the working performance of electronic equipment.
It is apparent to those skilled in the art that for convenience and simplicity of description, the control of foregoing description
The specific implementation of device and unit involved in method, can be with reference to the diagram and operation in aforementioned device embodiment, herein
It repeats no more.
In several embodiments provided herein, it should be understood that disclosed device and method, it can be by other
Mode realize.For example, the part steps in above method embodiment can be reconfigured, or it can change part steps
Before execute sequence.
The above, the only specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, it is any
Those familiar with the art can easily think of the change or the replacement in the technical scope that the disclosure discloses, and should all contain
It covers within the protection scope of the disclosure.Therefore, the protection scope of the disclosure shall be subject to the protection scope of the claim.
Claims (13)
1. a kind of coupling device, is applied to an electronic equipment, which includes:
Coupled apparatus, including input, output end and coupled end, the input signal for will enter into the input terminal divide
For output signal and coupled signal, and from the output end exports the output signal, exports the coupling from the coupled end
Signal；
Switching device is couple to the coupled end of the coupled apparatus, for switching the coupled signal exported from the coupled end
Transmission channel；
Wherein, the coupling device further includes control unit, which is connected to the switching device, for according to
The different operating modes of electronic equipment control the handover operation of the switching device, and the operating mode includes wherein entering
The power of the input signal of input terminal is greater than the high power mode of predetermined value.
2. coupling device according to claim 1, wherein the coupled apparatus further includes isolation end, the isolation end warp
It is connected to ground by an absorbing load.
3. coupling device according to claim 2, wherein the coupled end can be connected to described by the switching device
The coupled signal is transmitted to the absorbing load by isolation end.
4. coupling device according to claim 1, wherein the switching device is switch, is used for the coupled apparatus
Coupled end be used to selectively connect to one in the first transmission channel and the second transmission channel.
5. coupling device according to claim 4, wherein the electronic equipment is communication equipment, and first transmission is logical
Road is the access that ground is connected to via absorbing load, and described control unit includes:
Detection module, for detecting whether the communication equipment is in global system for mobile communications GSM mode；
Control module, for controlling the switching device when the communication equipment is in global system for mobile communications GSM mode
The coupled end is connected to the first transmission channel, and is not at global system for mobile communications GSM mould in the communication equipment
When formula, the switching device is controlled by the coupled end and is connected to the second transmission channel.
6. a kind of antenna assembly is applied to an electronic equipment, comprising:
Antenna element, for radiating and receiving antenna signal；
Coupled apparatus, including input, output end and coupled end, the input terminal are connected to the signal transceiver in electronic equipment,
The output end is connected to the antenna element, and the coupled end is used for output when via antenna element radiating antenna signal and wants spoke
The a part for the aerial signal penetrated；
Switching device is couple to the coupled end of the coupled apparatus, for switching the coupled end and different transmission channels
Connection, with via a part of the aerial signal to be radiated described in different transmission channel transmission,
Wherein, the antenna assembly further includes control unit, which is connected to the switching device, for according to
The operating mode of electronic equipment controls the handover operation of the switching device, and the operating mode includes the wherein signal hair
The high power mode for sending the output power of device to be greater than predetermined value.
7. antenna assembly according to claim 6, wherein the coupled apparatus further includes isolation end, the isolation end warp
It is connected to ground by an absorbing load.
8. antenna assembly according to claim 6, wherein the switching device is switch, is used for the coupled apparatus
Coupled end be used to selectively connect to one in the first transmission channel and the second transmission channel.
9. antenna assembly according to claim 8, wherein first transmission channel is to be connected to ground via absorbing load
Access, second transmission channel is the power detecting unit for being connected to the power for detecting the signal to be radiated
Access, described control unit include:
Detection module, for detecting whether the electronic equipment is in global system for mobile communications GSM mode；
Control module, for controlling the switching device when the electronic equipment is in global system for mobile communications GSM mode
The coupled end is connected to first transmission channel, and is not at global system for mobile communications in the electronic equipment
When GSM mode, the switching device is controlled by the coupled end and is connected to second transmission channel.
10. antenna assembly according to claim 6, further includes: front-end module, first end are connected to the coupled apparatus
Input terminal, second end is connected to the transmitting terminal of the signal transceiver, third end is connected to the reception of the signal transceiver
End.
11. a kind of electronic equipment, comprising:
Antenna assembly as described in any one of claim 6-10；
Signal transceiver is connected to the input terminal of the coupler in the antenna assembly；
Power detecting unit is connected to the switching device and is the coupled signal formation transmission channel exported from coupled end.
12. a kind of control method is applied to an electronic equipment, which includes coupled apparatus and switching device, the coupling
Clutch part includes input, output end and coupled end, and the input signal for will enter into the input terminal is divided into output letter
Number and coupled signal, and from the output end export the output signal, export the coupled signal from the coupled end, it is described
Switching device is couple to the coupled end, and the control method includes:
The operating mode for detecting the electronic equipment obtains a testing result；And
The switching device is controlled, based on the testing result to switch the transmission of the coupled signal exported from the coupled end
Access,
Wherein, the electronic equipment includes sender unit, and the operating mode of the detection electronic equipment includes:
Whether the operating mode for detecting the electronic equipment is the output power of the wherein sender unit greater than predetermined value
High power mode.
13. control method according to claim 12, wherein the transmission channel includes being connected to ground via absorbing load
The first transmission channel and be connected to power for detecting the signal to be radiated power detecting unit the second transmission channel,
The high power mode is global system for mobile communications GSM mode, described that the switch is controlled based on the testing result
Part includes:
When the electronic equipment is in global system for mobile communications GSM mode, the switching device is controlled by the coupled end
It is connected to first transmission channel；And
When the electronic equipment is not at global system for mobile communications GSM mode, the switching device is controlled by the coupling
End is connected to second transmission channel.
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| CN201510698994.3A CN105304999B (en) | 2015-10-26 | 2015-10-26 | Coupling device, antenna assembly, electronic equipment and control method |
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| CN201510698994.3A CN105304999B (en) | 2015-10-26 | 2015-10-26 | Coupling device, antenna assembly, electronic equipment and control method |
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| CN106099296A (en) * | 2016-07-27 | 2016-11-09 | 斯必能通讯器材(上海)有限公司 | Adjustable power splitter |
| KR102139769B1 (en) * | 2018-10-16 | 2020-08-11 | 삼성전기주식회사 | Directional coupler circuit and power apmplifier with phase compensation function |
| CN112730623A (en) * | 2020-12-21 | 2021-04-30 | 电子科技大学 | Material defect detection system based on pulse reflection method and detection method thereof |
| CN115932349B (en) * | 2023-02-10 | 2023-06-23 | 南京燧锐科技有限公司 | Switching circuit, chip and testing device for radio frequency signals |
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