CN105304999A - Coupling device, antenna device, electronic device and control method - Google Patents
Coupling device, antenna device, electronic device and control method Download PDFInfo
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- CN105304999A CN105304999A CN201510698994.3A CN201510698994A CN105304999A CN 105304999 A CN105304999 A CN 105304999A CN 201510698994 A CN201510698994 A CN 201510698994A CN 105304999 A CN105304999 A CN 105304999A
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Abstract
The invention provides a coupling device, an antenna device, an electronic device and a control method. The coupling device comprises a coupling device and a switching device, wherein the coupling device comprises an input end, an output end and a coupling end for dividing input signals inputted to the input end into output signals and coupling signals and outputting the output signals from the output end and outputting the coupling signals from the coupling end; and the switching device is coupled to the coupling end of the coupling device for switching transmission paths for coupling signals outputted from the coupling end. By using the technical scheme of the embodiment of the invention, influences on other devices by radio frequency signals separated from the coupling device can be reduced, and applicability of the coupling device is improved.
Description
Technical field
The disclosure relates to electronic technology field, more specifically, relates to a kind of coupling device, antenna assembly, electronic equipment and control method.
Background technology
Along with the development of the communication technology, such as each class of electronic devices of computer, personal digital assistant, mobile communication terminal, audio player etc. can both utilize antenna to transmit and/or receive data, thus is very easy to the transmission of information and data.The performance of information transmission greatly will be affected in the performance of the radiofrequency signal of transmitting terminal transmission.In order to detect the performance of the radiofrequency signal that will send, usually adopting demultiplexer to isolate a part from the radiofrequency signal that will send, and determining the performance of the radiofrequency signal that will send based on be separated radiofrequency signal.
Coupler can be utilized as described demultiplexer.The radiofrequency signal of input can be divided into the radiofrequency signal of two-way output by this coupler according to predetermined ratio.The power of the radiofrequency signal that two-way exports can along with the changed power of the radiofrequency signal of input.When the power of the radiofrequency signal inputted becomes large, the power of the radiofrequency signal that two-way exports increases.When the power of the radiofrequency signal inputted diminishes, the power reduction of the radiofrequency signal that two-way exports.In the electronic device, the radiofrequency signal in disparate modules or path may influence each other, thus reduces the quality of radiofrequency signal.Such as, when the road radiofrequency signal exported from coupler turns back in electronic equipment, if the power ratio of the radiofrequency signal returned is comparatively large, then may affect the work of the device adjacent with returned radiofrequency signal in electronic equipment.Such as, the radiofrequency signal returned may affect the work of the clock circuit in electronic equipment, thus greatly damages the performance of electronic equipment.
Summary of the invention
Disclosure embodiment provides a kind of coupling device, antenna assembly, electronic equipment and control method, and it can reduce the radiofrequency signal that separates from coupling device to the impact of other device, thus improves the applicability of coupling device.
First aspect, provides a kind of coupling device, is applied to an electronic equipment.This coupling device can comprise: coupled apparatus, comprise input, output and coupled end, for the input signal being input to described input being divided into output signal and coupled signal, and exporting described output signal from described output, export described coupled signal from described coupled end; Switching device, is couple to the coupled end of described coupled apparatus, for switching the transmission channel of the coupled signal exported from described coupled end.
In conjunction with first aspect, in a kind of implementation of first aspect, described coupled apparatus also can comprise isolation end, and described isolation end is connected to ground via an absorbing load.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, described coupled end can be connected to described isolation end by described switching device, so that described coupled signal is sent to described absorbing load.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, described switching device can be switch, for the coupled end of described coupled apparatus being optionally connected in the first transmission channel and the second transmission channel.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, coupling device also can comprise control unit.This control unit is connected to described switching device, for controlling the handover operation of described switching device according to the different mode of operation of described electronic equipment.The power that described mode of operation comprises the input signal wherein entering input is greater than the high power mode of predetermined value.
In conjunction with first aspect and above-mentioned implementation thereof, in another implementation of first aspect, described electronic equipment can be communication equipment, and described first transmission channel can be the path being connected to ground via absorbing load.Described control unit can comprise: detection module, whether is in global system for mobile communications GSM mode for detecting described communication equipment; Control module, for when described communication equipment is in global system for mobile communications GSM mode, control described switching device and described coupled end is connected to the first transmission channel, and when described communication equipment is not in global system for mobile communications GSM mode, controls described switching device and described coupled end is connected to the second transmission channel.
Second aspect, provides a kind of antenna assembly, is applied to an electronic equipment.This antenna assembly can comprise: antenna element, for radiation and reception antenna signal; Coupled apparatus, comprise input, output and coupled end, this input is connected to the signal transceiver in electronic equipment, and this output is connected to described antenna element, and described coupled end is used in the part wanting the aerial signal of radiation via output during antenna element radiating antenna signal; Switching device, is couple to the coupled end of described coupled apparatus, for switching the connection of described coupled end and different transmission channels, to want a part for the aerial signal of radiation described in transmitting via different transmission channels.
In conjunction with second aspect, in a kind of implementation of second aspect, described coupled apparatus also can comprise isolation end, and described isolation end is connected to ground via an absorbing load.
In conjunction with second aspect and above-mentioned implementation thereof, in another implementation of second aspect, described switching device can be switch, for the coupled end of described coupled apparatus being optionally connected in the first transmission channel and the second transmission channel.
In conjunction with second aspect and above-mentioned implementation thereof, in another implementation of second aspect, antenna assembly also can comprise control unit.This control unit is connected to described switching device, and for controlling the handover operation of described switching device according to the mode of operation of described electronic equipment, the power output that described mode of operation comprises wherein said sender unit is greater than the high power mode of predetermined value.
In conjunction with second aspect and above-mentioned implementation thereof, in another implementation of second aspect, described first transmission channel can be the path being connected to ground via absorbing load, and described second transmission channel can be the path of the power detecting unit for being connected to the power for detecting the signal wanting radiation.Described control unit can comprise: detection module, whether is in global system for mobile communications GSM mode for detecting described electronic equipment; Control module, for when described electronic equipment is in global system for mobile communications GSM mode, control described switching device and described coupled end is connected to described first transmission channel, and when described electronic equipment is not in global system for mobile communications GSM mode, controls described switching device and described coupled end is connected to described second transmission channel.
In conjunction with second aspect and above-mentioned implementation thereof, in another implementation of second aspect, described antenna assembly also can comprise: front-end module, its first end is connected to the input of described coupled apparatus, and the second end is connected to the transmitting terminal of described signal transceiver, three-terminal link to the receiving terminal of described signal transceiver.
The third aspect, provides a kind of electronic equipment.This electronic equipment comprises: antenna assembly as above; Signal transceiver, is connected to the input of the coupler in described antenna assembly; Power detecting unit, be connected to described switching device and be from coupled end export coupled signal formed transmission channel.
Fourth aspect, provides a kind of control method, is applied to an electronic equipment.This electronic equipment comprises coupled apparatus and switching device.Described coupled apparatus comprises input, output and coupled end, for the input signal being input to described input being divided into output signal and coupled signal, and exporting described output signal from described output, export described coupled signal from described coupled end.Described switching device is couple to described coupled end.Described control method can comprise: the mode of operation detecting described electronic equipment, obtains a testing result; And control described switching device based on described testing result, to switch the transmission channel of the coupled signal exported from described coupled end.
In conjunction with fourth aspect, in a kind of implementation of fourth aspect, described electronic equipment can comprise sender unit, and the mode of operation of the described electronic equipment of described detection can comprise: whether the mode of operation detecting described electronic equipment is the high power mode that the power output of wherein said sender unit is greater than predetermined value.
In conjunction with fourth aspect and above-mentioned implementation thereof, in another implementation of fourth aspect, described transmission channel can comprise and is connected to first transmission channel on ground via absorbing load and is connected to second transmission channel of power detecting unit of the power for detecting the signal wanting radiation, described high power mode is global system for mobile communications GSM mode, describedly control described switching device based on described testing result and can comprise: when described electronic equipment is in global system for mobile communications GSM mode, control described switching device and described coupled end is connected to described first transmission channel, and when described electronic equipment is not in global system for mobile communications GSM mode, controls described switching device and described coupled end is connected to described second transmission channel.
In the technical scheme of the above-mentioned coupling device of disclosure embodiment, antenna assembly, electronic equipment and control method, by the coupled end at coupled apparatus, switching device is set, and utilize this switching device to control the transmission channel of exported coupled signal, the radiofrequency signal that separates from coupling device can be reduced on the impact of other device, thus improve the applicability of coupling device.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of disclosure embodiment, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present disclosure, for those of ordinary skill in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structured flowchart of the first coupling device schematically illustrated according to disclosure embodiment;
Fig. 2 schematically shows the structure of directional coupler;
Fig. 3 is the structured flowchart of the second coupling device schematically illustrated according to disclosure embodiment;
Fig. 4 is the structured flowchart of the 3rd coupling device schematically illustrated according to disclosure embodiment;
Fig. 5 is the structured flowchart of the first day line apparatus schematically illustrated according to disclosure embodiment;
Fig. 6 is the structured flowchart of the second antenna assembly schematically illustrated according to disclosure embodiment;
Fig. 7 is the flow chart of the control method schematically illustrated according to disclosure embodiment.
Embodiment
Below in conjunction with the accompanying drawing in disclosure embodiment, be clearly and completely described the technical scheme in disclosure embodiment, obviously, described embodiment is disclosure part embodiment, instead of whole embodiments.
The power divider of the radiofrequency signal of input is the radiofrequency signals of two outputs, such as output signal and coupled signal according to predetermined ratio by typical coupler.The power of the radiofrequency signal that two-way exports can along with the changed power of the radiofrequency signal of input.The performance of coupler is normally fixing.Coupler is used for from radiofrequency signal, separating a part to carry out input, to monitor the performance such as signal frequency, power of the radiofrequency signal of input.But the electronic module residing for coupler or the operating state of electronic equipment may be changes.When not needing when the change due to operating state to use the coupled signal exported from coupler, this coupled signal may cause interference to other signal in electronic module or electronic equipment.And the coupled signal exported from coupler may be used to different purposes.
In the coupling device of disclosure embodiment, by the coupled end at coupled apparatus, switching device is set, and utilize this switching device to control the transmission channel of exported coupled signal, the radiofrequency signal that separates from coupling device can be reduced on the impact of other device, thus improve the applicability of coupling device.
Fig. 1 is the structured flowchart of the first coupling device 100 schematically illustrated according to disclosure embodiment.This first coupling device 100 can be applicable to various electronic equipment, includes but not limited to communication equipment, electric equipment, power supply unit etc.
As shown in Figure 1, this first coupling device 100 comprises: coupled apparatus 110, comprise input IN, output OUT and coupled end COUP, for the input signal being input to described input being divided into output signal and coupled signal, and exporting described output signal from described output OUT, export described coupled signal from described coupled end COUP; With switching device 120, be couple to the coupled end COUP of described coupled apparatus, for switching the transmission channel of the coupled signal exported from described coupled end COUP.
As shown in Figure 1, coupled apparatus 110 comprises these three ports of input IN, output OUT and coupled end COUP.When input signal inputs from input IN, it exports from output OUT, has a small amount of output in coupled end 3.
Coupled apparatus 110 is the radio-frequency devices extracting sub-fraction signal from radiofrequency signal trunk passage.The power of the input IN of ideal coupler equals the power of output OUT and the power sum of coupled end COUP.The important parameter of coupled apparatus 110 is the degree of coupling and Insertion Loss.The degree of coupling be the power of output OUT with the ratio of the power of input IN, representing with dB, is generally negative value.The Insertion Loss of coupled apparatus 110 is input IN and the ratio of the power of output OUT.The absolute value of the degree of coupling is larger, and the absolute value of Insertion Loss is less.After coupled apparatus is produced, its degree of coupling and Insertion Loss are normally fixed.But, as previously mentioned, when the operating state change of the electronic equipment that coupled apparatus is applied to, may need to adjust the coupled signal exported from the coupled end of coupler.Otherwise described coupled signal may cause interference.
Coupled apparatus 110 can be directional coupler, waveguide coupler, two branch couplers etc., and the kind of coupler does not form the restriction to disclosure embodiment.Fig. 2 schematically shows the structure of directional coupler.Directional coupler has four ports, as Fig. 2 the port one, port 2, port 3, the port 4 that mark.When port one receives input signal as input IN, port 2 is output OUT, and port 3 is coupled end COUP, and port 4 is isolation end.For desirable directional coupler, when input signal inputs from port one, its major part exports from port 2, has a small amount of output in port 3, port 4 no-output.Usually, between the input IN and isolation end of directional coupler, there is good isolation.In addition, the structure of directional coupler has symmetry, and such as input IN and isolation end can exchange.When input signal inputs from the port 4 (i.e. input IN) shown in Fig. 2, the major part of input signal exports from port 3 (i.e. output OUT), do not export in input 1 (i.e. isolation end), and have a small amount of output in port 2 (i.e. coupled end COUP).
It should be noted that there is isolation end in the directional coupler of Fig. 2, but may isolation end be there is no in other coupler, such as, when coupler 110 is two branch couplers, may isolation end be set.When coupled apparatus 110 also comprises isolation end, described isolation end can be connected to ground via an absorbing load.In desirable coupled apparatus, do not have signal to export at isolation end, but in the coupled apparatus of reality, export at isolation end or signal, the power of the signal output of isolation end is less than the power output of coupled end COUP.Described absorbing load can absorb the signal exported from isolation end, thus promotes the performance of coupled apparatus 110 further.Alternatively, described isolation end can also be directly connected to ground.Described absorbing load is such as the resistor with power consumption.
Switching device 120 in Fig. 1 is couple to the coupled end COUP of described coupled apparatus 110, for switching the transmission channel of the coupled signal exported from described coupled end COUP.As in Fig. 1, switching device 120 is connected to the first transmission channel PATH1 and the second transmission channel PATH2.The coupled end COUP of coupled apparatus 110 can be optionally connected to one of the first transmission channel PATH1 and the second transmission channel PATH2 by switching device 120.Like this, the first transmission channel PATH1 and the second transmission channel PATH2 can be connected to disparate modules or the different components of the electronic equipment that coupling device 100 is applied to.
When the operating state of electronic equipment changes, can utilize this switching device 120 that the coupled end COUP of coupled apparatus 110 is connected to different transmission channels.Such as, the first transmission channel PATH1 can be the test component being connected to electronic equipment, to carry out signal testing when electronic equipment is in test mode; Second transmission channel PATH2 can be the path of the power detector be connected in electronic equipment, to carry out input when electronic equipment is in running order.The electronic device that first transmission channel PATH1 and the second transmission channel PATH2 is connected to does not form the restriction to disclosure embodiment.
In FIG, illustrate only two transmission channels.In practice, the number of transmission channel can be three, very or more, and can suitably arrange as required.In addition, radio-frequency (RF) switch can be utilized as described switching device 120, coupled end COUP is optionally connected to specific transmission channel.When there being two transmission channels, switching device 120 can be the radio-frequency (RF) switch of 1 × 2; When there being three transmission channels, switching device 120 can be the radio-frequency (RF) switch of 1 × 3, the like.
In the technical scheme of the above-mentioned coupling device of disclosure embodiment, by the coupled end at coupled apparatus, switching device is set, and utilize this switching device to control the transmission channel of exported coupled signal, the radiofrequency signal that separates from coupling device can be reduced on the impact of other device, thus improve the applicability of coupling device.
Fig. 3 is the structured flowchart of the second coupling device 300 schematically illustrated according to disclosure embodiment.In second coupling device 300 of Fig. 3, adopt identical Reference numeral to indicate the device identical with first coupling device 100 of Fig. 1, and the description can carried out see composition graphs 1 and Fig. 2 above.
Relative to the coupled apparatus 110 in the second coupling device 300 in Fig. 1, Fig. 3 except comprising input IN, output OUT and coupled end COUP, also comprise isolation end ISOL.Described isolation end ISOL is connected to ground via an absorbing load.Switching device 120 is 1 × 2 switches, for the coupled end COUP of coupled apparatus 110 being optionally connected in the first transmission channel PATH1 and the second transmission channel PATH2.
As shown in Figure 3, the first transmission channel PATH1 is the path being connected to ground via absorption resistance.Exemplarily, the second transmission channel PATH2 can be the path of the power detector be connected in electronic equipment.When needing the power of the input signal detecting coupled apparatus 110, coupled end COUP is connected to the second transmission channel PATH2 by described switching device 120.When not needing the power of the input signal detecting coupled apparatus 110, coupled end COUP is connected to the first transmission channel PATH1 by described switching device 120.When the first transmission channel PATH1 be via absorption resistance be connected to ground path, described coupled end COUP is connected to described isolation end ISOL by described switching device 120, so that described coupled signal is sent to described absorbing load.Now, coupled end COUP and the isolation end ISOL of switching device 120 share described absorbing load, this absorbing load not only can absorb the isolation signals exported from isolation end ISOL, the coupled signal exported from coupled end COUP can also be absorbed, thus avoid the signal disturbing that both described isolation signals and coupled signal cause.
Power the need of the input signal detecting coupled apparatus 110 such as depends on the operating state of electronic equipment.When not needing the power of the input signal detecting coupled apparatus 110, if the power of input signal is very large, then cause the coupled signal of coupled end COUP may cause interference to other circuit.Correspondingly, by switching device 120, coupled end COUP is connected to the first transmission channel PATH1, the coupled signal exported from coupled end COUP can be avoided the interference of other signal.
Fig. 4 is the structured flowchart of the 3rd coupling device 400 schematically illustrated according to disclosure embodiment.In the 3rd coupling device 400 of Fig. 4, adopt identical Reference numeral to indicate the device identical with second coupling device of Fig. 3, and the description can carried out see composition graphs 1 to Fig. 3 above.
In the diagram, the 3rd coupling device 400, except comprising above-mentioned coupled apparatus 110 and switching device 120, also comprises control unit 130.As shown in Figure 4, this control unit 130 is connected to described switching device 120, for controlling the handover operation of described switching device according to the different mode of operation of described electronic equipment.That is, control unit 130 controls described switching device according to the mode of operation of electronic equipment and switches between different transmission channels.
The power that described mode of operation comprises the input signal wherein entering input is greater than the high power mode of predetermined value.When the power of the input signal entering input IN is very large, also larger from the power of the coupled signal of coupled end COUP output.If described coupled end COUP is also connected to the power detector of the second transmission channel PATH2, then described coupled signal may be crosstalked into clock circuit through described power detector, thus causes interference to clock signal.Exemplarily, be in the communication equipment of such as mobile phone at described electronic equipment, described high power mode can be global system for mobile communications (GSM) pattern of communication equipment.Correspondingly, control unit 130 controls switching device 120 and coupled end COUP is connected to the first transmission channel PATH1, and the coupled signal exported from coupled end COUP can be avoided the interference of other signal.This control unit 130 typically can utilize processor and memory to realize.Described memory storage control program code, controls switching device 120 when described processor performs described program code.
As shown in Figure 4, described control unit 130 can comprise: detection module 131, whether is in high power mode (such as, GSM mode) for detecting described communication equipment; Control module 132, for when described communication equipment is in high power mode, control described switching device 120 and described coupled end COUP is connected to the first transmission channel PATH1, and when described communication equipment is not in high power mode, controls described switching device 120 and described coupled end COUP is connected to the second transmission channel PATH2.Detection module 131 such as obtains the information about its mode of operation, to determine whether communication equipment is in high power mode from the operating system of communication equipment.
When the transmission channel that switching device 120 is connected to is different, described detection module needs to detect different information, to perform control by control module 132 according to detected control information.Such as, be connected to the test component of electronic equipment at the first transmission channel PATH1, the second transmission channel PATH2 is connected in the situation of the power detector in electronic equipment, detection module 131 can be in test pattern or normal mode of operation by detected electrons equipment.When detection module 131 detects that electronic equipment is in test pattern, control module 132 controls switching device 120 and is connected to the first transmission channel PATH1.When detection module 131 detects that electronic equipment is in normal mode of operation, control module 132 controls switching device 120 and is connected to the second transmission channel PATH2.
After the embodiment being disclosed above coupling device, any electronic equipment comprising this coupling device is also all in the open scope of disclosure embodiment.
Fig. 5 is the structured flowchart of the first day line apparatus 500 schematically illustrated according to disclosure embodiment.First day line apparatus 500 can be applicable to various electronic equipment, includes but not limited to communication equipment, electric equipment, power supply unit etc.
As shown in Figure 5, first day line apparatus 500 can comprise: antenna element 510, for radiation and reception antenna signal; Coupled apparatus 110, comprises input IN, output OUT and coupled end COUP; Switching device 120, is couple to the coupled end COUP of described coupled apparatus 110.
Antenna element 510 can be the antenna utilizing any technology to realize, such as microstrip antenna, unipole antenna, loop aerial etc.This antenna element 510 can also comprise two or more sub antennas, and each sub antenna can be positioned at the diverse location of electronic equipment.The type of antenna element 510 and setting in the electronic device do not form the restriction to disclosure embodiment.
The input IN of coupled apparatus 110 is connected to the signal transceiver TRX in electronic equipment.The output OUT of coupled apparatus 110 is connected to described antenna element 510.Described coupled end COUP is used in the part wanting the aerial signal of radiation via output during antenna element 510 radiating antenna signal.The connected mode of switching device 120 is identical with the description of composition graphs 1, namely the coupled end COUP of described coupled apparatus 110 is couple to, for switching the connection of described coupled end COUP and different transmission channels, to want a part for the aerial signal of radiation described in transmitting via different transmission channels.
Switching device 120 is connected to the first transmission channel PATH1 and the second transmission channel PATH2.Switching device 120 is such as switch, for the coupled end of described coupled apparatus is optionally connected to one of the first transmission channel PATH1 and the second transmission channel PATH2.Such as, the first transmission channel PATH1 can be the test component being connected to electronic equipment, to carry out signal testing when electronic equipment is in test mode; Second transmission channel PATH2 can be the path of the power detector be connected in electronic equipment, to carry out input when electronic equipment is in running order.About coupled apparatus 110 and switching device 120, the description can carried out see composition graphs 1 to Fig. 4 above and the diagram of Fig. 1-4.
When transmitting antenna signal, signal transceiver TRX exports the aerial signal that will launch, the aerial signal launched is provided to the input IN of coupled apparatus 110, and the major part of aerial signal is supplied to antenna element 510 via its output OUT, to launch via antenna element 510.A part for the aerial signal launched also exports via the coupled end COUP of coupled apparatus 110, for detecting the power of the aerial signal that will launch or carrying out the frequency test etc. of aerial signal.
When reception antenna signal, the aerial signal of reception is supplied to the output OUT shown in Fig. 5 by antenna element 510.As previously mentioned, coupled apparatus 110 has symmetry, and when received aerial signal is imported into output OUT, the major part of the aerial signal received exports from input IN, and is provided to signal transceiver TRX.Now, the coupled end COUP of coupled apparatus 110 becomes isolation end, and only has the signal of minute quantity to export.
When electronic equipment adopts time-multiplexed mode to work, coupled apparatus 110 is by a signal path and signal transceiver TRX.When electronic equipment adopts the mode of frequency division multiplexing or code division multiplexing to work, coupled apparatus 110 needs by two signal paths and signal transceiver TRX, one tunnel is used for from signal transceiver TRX transmitting to coupled apparatus 110, one tunnel is used for from coupled apparatus 110 to the Received signal strength of signal transceiver TRX, and front-end module can be utilized realize particularly, further describe below in conjunction with Fig. 6.
Fig. 6 is the structured flowchart of the second antenna assembly 600 schematically illustrated according to disclosure embodiment.As shown in Figure 6, described coupled apparatus 110 also comprises isolation end ISOL.Isolation end ISOL is connected to ground via an absorbing load.In the coupled apparatus of reality, signal is had to export at isolation end ISOL, although power is very little.The power of the signal output of isolation end ISOL is less than the power output of coupled end COUP.Described absorbing load can absorb the signal exported from isolation end, thus promotes the performance of coupled apparatus 110 further.Described isolation end ISOL can also be directly connected to ground.Described absorbing load is such as the resistor with power consumption.
In figure 6, the transceiver (below referred to as WTR255 transceiver) utilizing the model of Qualcomm to be WTR255 is as the signal transceiver TRX in Fig. 5.This WTR255 transceiver has transmitting terminal TX, receiving terminal RX and feedback end TX_FBRX.Transmitting terminal TX is for launching the radiofrequency signal that will send.Receiving terminal RX is for receiving the radiofrequency signal received via antenna.Feedback end TX_FBRX is used for the radiofrequency signal that reception will be sent by the part that coupled apparatus 110 separates when transmitting terminal TX emitting radio frequency signal, to detect the frequency, power etc. of the radiofrequency signal that will send.
Antenna assembly 600 in Fig. 6 also comprises front-end module 520.Front-end module 520 is for being connected to described coupled apparatus 110 by described WTR255 transceiver.Front-end module 520 typically comprises switch and radio-frequency filter, for the switching of the reception and transmitting that realize aerial signal.In addition, front-end module 520 can also have Frequency Band Selection, for carrying out filtering etc. to the radiofrequency signal received and transmitting and radiofrequency signal.Second antenna assembly 600 of Fig. 6 utilizes front-end module 520 to the switching of the reception and transmitting that realize aerial signal.The first end of front-end module 520 is connected to the input IN of described coupled apparatus 110.Second end of front-end module 520 is connected to the transmitting terminal of described signal transceiver, such as the transmitting terminal TX of WTR255 transceiver.The three-terminal link of front-end module 520 to the transmitting terminal of described signal transceiver, the receiving terminal RX of such as WTR255 transceiver.
In figure 6, the first transmission channel PATH1 is the path being connected to ground via absorption resistance, and the second transmission channel PATH2 is connected to the feedback end TX_FBRX of WTR255 transceiver.When needing the power of the input signal detecting coupled apparatus 110, coupled end COUP is connected to the second transmission channel PATH2 by described switching device 120.When not needing the power of the input signal detecting coupled apparatus 110, coupled end COUP is connected to the first transmission channel PATH1 by described switching device 120.When the first transmission channel PATH1 be via absorption resistance be connected to ground path, described coupled end COUP is connected to described isolation end ISOL by described switching device 120, so that described coupled signal is sent to described absorbing load.Described coupled end COUP and isolation end ISOL shares described absorbing load, this absorbing load not only can absorb the isolation signals exported from isolation end ISOL, the coupled signal exported from coupled end COUP can also be absorbed, thus avoid the signal disturbing that both described isolation signals and coupled signal cause.
With the description of composition graphs 3 similarly, second antenna assembly 600 of Fig. 6 also can comprise control unit 130.This control unit 130 is connected to described switching device, for controlling the handover operation of described switching device according to the mode of operation of described electronic equipment, the power output that described mode of operation comprises wherein said sender unit is greater than the high power mode of predetermined value, can also comprise the test pattern for testing described electronic equipment.Described control unit 130 can comprise detection module 131 and control module 132.About control unit 130, the description can carried out see composition graphs 4.
When transmitting antenna signal, the transmitting terminal TX of WTR255 transceiver exports the aerial signal that will launch, the input IN of coupled apparatus 110 is supplied to via this front-end module 520, the major part of the aerial signal that the output OUT of coupled apparatus 110 will launch is supplied to antenna element 510, to launch via antenna element 510.The sub-fraction of the aerial signal that the coupled end COUP of coupled apparatus 110 will launch outputs to switching device 120.When detection module in control unit 130 detects that electronic equipment is high power mode (such as, do not need the GSM mode detecting the radiofrequency signal of launching), control switching device 120 and described coupled end is connected to described first transmission channel PATH1.(need the CDMA pattern detecting the radiofrequency signal of launching) when detection module in control unit 130 detects that electronic equipment is not high power mode, control switching device 120 and described coupled end is connected to described second transmission channel PATH2.The output of coupled end COUP is connected to the feedback end TX_FBRX of WTR255 transceiver by the second transmission channel PATH2, for detecting the power of the aerial signal that will launch or carrying out the frequency test etc. of aerial signal.
When reception antenna signal, the aerial signal of reception is supplied to the output OUT shown in Fig. 5 by antenna element 510, the major part of the aerial signal received exports from input IN, and being provided to front-end module 520, this front-end module 520 performs and switches and the aerial signal from input IN is supplied to signal transceiver TRX.Now, the coupled end COUP of coupled apparatus 110 becomes isolation end, and only has the signal of minute quantity to export; The isolation end ISOL of coupled apparatus 110 becomes coupled end, and the signal therefrom exported is absorbed via absorption resistance, can not cause interference to adjacent signal.In the process of reception antenna signal, can not need the power detecting aerial signal, control unit 130 can control switching device 120 and coupled end COUP is connected to the first transmission channel PATH1.This first transmission channel PATH1 is connected to ground via absorbing load, can not cause interference to adjacent signal.
In the above-mentioned first day line apparatus of disclosure embodiment and the technical scheme of the second antenna assembly, by the coupled end at coupled apparatus, switching device is set, and utilize this switching device to control the transmission channel of exported coupled signal, the radiofrequency signal that separates from coupling device can be reduced on the impact of other device, thus improve the applicability of coupling device.
After the embodiment being disclosed above each antenna assembly, the electronic equipment of any described antenna assembly is also all in the open scope of disclosure embodiment.Such as, electronic equipment, except comprising the antenna assembly in Fig. 5 or Fig. 6, can also comprise signal transceiver and power detecting unit.Signal transceiver is connected to the input of the coupler in described antenna assembly.Particularly, signal transceiver can be directly connected to the input of coupler as shown in Figure 5, or can be connected to the input of coupler as shown in Figure 6 via front-end module.Power detecting unit is connected to described switching device and is that the coupled signal exported from coupled end forms transmission channel.
Fig. 7 is the flow chart of the control method 700 schematically illustrated according to disclosure embodiment.This control method 700 can be applicable to an electronic equipment, includes but not limited to communication equipment, electric equipment, power supply unit etc.This electronic equipment comprises coupling device.This coupling device comprises coupled apparatus and switching device.Described coupled apparatus comprises input, output and coupled end, for the input signal being input to described input being divided into output signal and coupled signal, and exporting described output signal from described output, export described coupled signal from described coupled end.Described switching device is couple to described coupled end.This coupling device can be coupling device as shown in Figure 1, can also be the coupling device as shown in Fig. 3 or Fig. 4
As shown in Figure 7, described control method 700 can comprise: the mode of operation detecting described electronic equipment, obtains a testing result (S710); And control described switching device based on described testing result, to switch the transmission channel (S720) of the coupled signal exported from described coupled end.
When the operating state change of described electronic equipment, the transmission channel adjusting the coupled signal exported from the coupled end of the coupler of electronic equipment may be needed.Otherwise described coupled signal may cause interference.Therefore, described control method 700 controls the operation of switching device based on the mode of operation of electronic equipment, thus selects suitable transmission channel for coupled signal.
The mode of operation of described electronic equipment such as comprises the test pattern, high power mode, communication pattern etc. of electronic equipment.Described test pattern is the pattern for testing electronic equipment.Described high power mode is the pattern that signal power that the transmitter in electronic equipment sends is greater than predetermined value.Communication pattern is such as GSM mode, CDMA pattern etc.For different electronic equipments, the mode of operation that detect also may be different.
The mode of operation of described electronic equipment is detected in S710.Depend on the mode division mode of electronic equipment, different modes can be taked to carry out the mode of operation of detected electrons equipment.Such as, for described high power mode, power detector can be utilized to detect the signal power sent from the transmitter electronic equipment, and utilize comparator by detected signal power compared with predetermined value, when detected signal power is greater than predetermined value, determine that electronic equipment is in high power mode; When detected signal power is less than or equal to predetermined value, determine that electronic equipment is not in high power mode.For communication pattern, from the module receiving mode command information for controlling communication pattern electronic equipment, and the mode of operation of electronic equipment can be determined according to this mode instruction information.
In S720, control described switching device based on described testing result, to switch the transmission channel of the coupled signal exported from described coupled end.That is, when the operating state of electronic equipment changes, can utilize this switching device that the coupled end of coupled apparatus is connected to different transmission channels.Suppose that transmission channel comprises the first transmission channel and the second transmission channel.
Exemplarily, the first transmission channel can be the test component being connected to electronic equipment, to carry out signal testing when electronic equipment is in test mode; Second transmission channel can be the path of the power detector be connected in electronic equipment, to carry out input when electronic equipment is in normal operating conditions.In S720, testing result indicate described electronic equipment be in test pattern time, control described switching device and described coupled end be connected to described first transmission channel; And when described electronic equipment is not in test pattern, such as, when being in normal mode of operation, controlling described switching device and described coupled end is connected to described second transmission channel.This normally works can comprise GSM mode, CDMA pattern etc.
In addition, the first transmission channel can also be the path being connected to ground via absorbing load, and the second transmission channel can also be the path being connected to power detecting unit.The mode of operation of the electronic equipment detected comprises global system for mobile communications GSM mode, time division multiple access TDMA pattern and code division multiple access CDMA pattern.In S720, testing result indicate described electronic equipment be in GSM mode time, control described switching device and described coupled end be connected to described first transmission channel; And when described electronic equipment is not in GSM mode, when being namely in TDMA pattern or CDMA pattern, controlling described switching device and described coupled end is connected to described second transmission channel.Relative to TDMA pattern and CDMA pattern, the power output of the transmitter in GSM mode is larger.Correspondingly, this GSM mode also can be considered to high power mode.
Control method 700 as described in Figure 7 can utilize the control unit 130 in Fig. 4 to perform.Described control unit is such as processor, and it is such as from memory calls program code, and realizes described control method 700 by performing described program code.
In the technical scheme of the above-mentioned control method of disclosure embodiment, by the coupled end at coupled apparatus, switching device is set, and by controlling this switching device to control the transmission channel of exported coupled signal, the use of the coupled signal exported from coupled apparatus can be controlled as required, thus improve the service behaviour of electronic equipment.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, device involved in the control method of foregoing description and the specific implementation of unit, with reference to the diagram in aforementioned means embodiment and operation, can not repeat them here.
In several embodiments that the application provides, should be understood that disclosed apparatus and method can realize by another way.Such as, the part steps in said method embodiment can reconfigure, or can execution sequence before changing section step.
The above; be only embodiment of the present disclosure, but protection range of the present disclosure is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the disclosure discloses; change can be expected easily or replace, all should be encompassed within protection range of the present disclosure.Therefore, protection range of the present disclosure should described be as the criterion with the protection range of claim.
Claims (16)
1. a coupling device, is applied to an electronic equipment, and this coupling device comprises:
Coupled apparatus, comprises input, output and coupled end, for the input signal being input to described input being divided into output signal and coupled signal, and exporting described output signal from described output, exports described coupled signal from described coupled end;
Switching device, is couple to the coupled end of described coupled apparatus, for switching the transmission channel of the coupled signal exported from described coupled end.
2. coupling device according to claim 1, wherein, described coupled apparatus also comprises isolation end, and described isolation end is connected to ground via an absorbing load.
3. coupling device according to claim 2, wherein, described coupled end can be connected to described isolation end by described switching device, so that described coupled signal is sent to described absorbing load.
4. coupling device according to claim 1, wherein, described switching device is switch, for the coupled end of described coupled apparatus being optionally connected in the first transmission channel and the second transmission channel.
5. coupling device according to claim 4, also comprise control unit, this control unit is connected to described switching device, for controlling the handover operation of described switching device according to the different mode of operation of described electronic equipment, the power that described mode of operation comprises the input signal wherein entering input is greater than the high power mode of predetermined value.
6. coupling device according to claim 5, wherein, described electronic equipment is communication equipment, and described first transmission channel is the path being connected to ground via absorbing load, and described control unit comprises:
Whether detection module, be in global system for mobile communications GSM mode for detecting described communication equipment;
Control module, for when described communication equipment is in global system for mobile communications GSM mode, control described switching device and described coupled end is connected to the first transmission channel, and when described communication equipment is not in global system for mobile communications GSM mode, controls described switching device and described coupled end is connected to the second transmission channel.
7. an antenna assembly, is applied to an electronic equipment, comprises:
Antenna element, for radiation and reception antenna signal;
Coupled apparatus, comprise input, output and coupled end, this input is connected to the signal transceiver in electronic equipment, and this output is connected to described antenna element, and described coupled end is used in the part wanting the aerial signal of radiation via output during antenna element radiating antenna signal;
Switching device, is couple to the coupled end of described coupled apparatus, for switching the connection of described coupled end and different transmission channels, to want a part for the aerial signal of radiation described in transmitting via different transmission channels.
8. antenna assembly according to claim 7, wherein, described coupled apparatus also comprises isolation end, and described isolation end is connected to ground via an absorbing load.
9. antenna assembly according to claim 7, wherein, described switching device is switch, for the coupled end of described coupled apparatus being optionally connected in the first transmission channel and the second transmission channel.
10. antenna assembly according to claim 9, also comprise control unit, this control unit is connected to described switching device, for controlling the handover operation of described switching device according to the mode of operation of described electronic equipment, the power output that described mode of operation comprises wherein said sender unit is greater than the high power mode of predetermined value.
11. antenna assemblies according to claim 10, wherein, described first transmission channel is the path being connected to ground via absorbing load, and described second transmission channel is the path of the power detecting unit for being connected to the power for detecting the signal wanting radiation, and described control unit comprises:
Whether detection module, be in global system for mobile communications GSM mode for detecting described electronic equipment;
Control module, for when described electronic equipment is in global system for mobile communications GSM mode, control described switching device and described coupled end is connected to described first transmission channel, and when described electronic equipment is not in global system for mobile communications GSM mode, controls described switching device and described coupled end is connected to described second transmission channel.
12. antenna assemblies according to claim 10, also comprise: front-end module, and its first end is connected to the input of described coupled apparatus, and the second end is connected to the transmitting terminal of described signal transceiver, three-terminal link to the receiving terminal of described signal transceiver.
13. 1 kinds of electronic equipments, comprising:
Antenna assembly according to any one of claim 7-12;
Signal transceiver, is connected to the input of the coupler in described antenna assembly;
Power detecting unit, be connected to described switching device and be from coupled end export coupled signal formed transmission channel.
14. 1 kinds of control methods, be applied to an electronic equipment, this electronic equipment comprises coupled apparatus and switching device, described coupled apparatus comprises input, output and coupled end, for the input signal being input to described input being divided into output signal and coupled signal, and export described output signal from described output, export described coupled signal from described coupled end, described switching device is couple to described coupled end, and described control method comprises:
Detect the mode of operation of described electronic equipment, obtain a testing result; And
Described switching device is controlled, to switch the transmission channel of the coupled signal exported from described coupled end based on described testing result.
15. antenna assemblies according to claim 14, wherein, described electronic equipment comprises sender unit, and the mode of operation of the described electronic equipment of described detection comprises:
Whether the mode of operation detecting described electronic equipment is the high power mode that the power output of wherein said sender unit is greater than predetermined value.
16. antenna assemblies according to claim 14, wherein, described transmission channel comprises and is connected to first transmission channel on ground via absorbing load and is connected to second transmission channel of power detecting unit of the power for detecting the signal wanting radiation, described high power mode is global system for mobile communications GSM mode, describedly controls described switching device based on described testing result and comprises:
When described electronic equipment is in global system for mobile communications GSM mode, controls described switching device and described coupled end is connected to described first transmission channel; And
When described electronic equipment is not in global system for mobile communications GSM mode, controls described switching device and described coupled end is connected to described second transmission channel.
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