CN105633555A - Antenna switching assembly, switching method, switching system, antenna and mobile terminal - Google Patents
Antenna switching assembly, switching method, switching system, antenna and mobile terminal Download PDFInfo
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- CN105633555A CN105633555A CN201610046317.8A CN201610046317A CN105633555A CN 105633555 A CN105633555 A CN 105633555A CN 201610046317 A CN201610046317 A CN 201610046317A CN 105633555 A CN105633555 A CN 105633555A
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- antenna
- feed point
- switching component
- switch
- terminal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
Abstract
The invention provides an antenna switching assembly, a switching method, a switching system, an antenna and a mobile terminal. The antenna switching assembly comprises a three-phase change-over switch, a fixed terminal and a selection terminal, wherein a first terminal and a second terminal in the fixed terminal are grounded; a third terminal in the fixed terminal is connected to a radio frequency processing module; the selection terminal is connected with a first feed point, a second feed point and a third feed point of an antenna body; and any terminal of the first terminal, the second terminal and the third terminal is connected with any feed point of the first feed point, the second feed point and the third feed point through the three-phase change-over switch. Through the technical scheme, a plurality of combination and connection modes of the fixed terminal and the selection terminal are achieved, so that multiple groups of resonant states are obtained; and the requirement of the bandwidth which cannot be covered by single resonance is met.
Description
Technical field
The present invention relates to technical field of mobile terminals, in particular to a kind of antenna switching component, a kind of changing method, a kind of switched system, a kind of antenna and and a kind of mobile terminal.
Background technology
In the related, radio-frequency antenna is widely used in the mobile terminals such as mobile phone, for existing changeable or frequency-modulated antenna, mainly through changing the parameter of the match circuit of antenna, it is thus achieved that different resonant frequencies.
But, owing to antenna body does not change, when the parameter of match circuit changes, resonant bandwidth reduce, it is thus achieved that resonance efficiency change also with tuning offset, with former resonance deviation more remote, efficiency is more low.
Therefore, by the resonance switched or frequency modulation match circuit obtains, its excursion is little, is difficult to meet bandwidth requirement, has a strong impact on the communication experiences of the user of mobile terminal.
In sum, how to design a kind of antenna switching scheme and become technical problem urgently to be resolved hurrily with the communication requirement realizing multiband.
Summary of the invention
The present invention be based on above-mentioned technical problem at least one, propose a kind of new antenna switching scheme, by arranging three-phase switching switch, the fixing multiple terminals held in antenna switching component and selecting multiple feed point of end, achieve fixing end and select the multiple combination connected mode of end, and then obtain and organize resonant condition more, meet the bandwidth demand that single resonance cannot cover.
In view of this, the present invention proposes a kind of antenna switching component, including: three-phase switching switch; Fixing end and selection end, fix the first terminal in end and the equal ground connection of the second terminal, the 3rd terminal in fixing end is connected to radio frequency processing module, select end to be connected to the first feed point of antenna body, the second feed point and the 3rd feed point, the arbitrary terminal in the first end, the second end and the 3rd end and the arbitrary feed point in the first feed point, the second feed point and the 3rd feed point to be connected by three-phase switching switch.
In this technical scheme, by arranging three-phase switching switch, the fixing multiple terminals held in antenna switching component and selecting multiple feed point of end, achieve fixing end and select the multiple combination connected mode of end, and then obtain and organize resonant condition more, meet the bandwidth demand that single resonance cannot cover.
Specifically, each antenna has center operating frequency, and when off-center operating frequency, some electrical property of antenna will decline, and electrical property drops to the frequency range of feasible value, it is simply that the bandwidth of antenna. One section of line is walked on main antenna side, high-frequency band part forms a standing wave makes bandwidth broaden with the fusion of main antenna high frequency standing wave, and earth point is to develop from dipole antenna, use limited ground level as other quarter-wave, dipole antenna on constitution theory, the optimum position of so-called feed point is the position being easiest to electromagnetic wave energy to radiate with electric wave form. If feed point is placed on edge, the focus of mainboard electric current will be easier to concentrate on board edges, electric power between mainboard and antenna is easier to link together, and the multiple frequency ranges covered needed for main feed point (radiofrequency signal input point) and ground feed point (ground signalling input point) relative distance on antenna cabling and antenna are corresponding.
In technique scheme, preferably, also include: impedance matching module, it is connected between selection end and antenna body, impedance matching module includes the first impedance matching unit, the second impedance matching unit and the 3rd impedance matching unit, and wherein, the first impedance matching unit is connected between the first feed point and antenna body, second impedance matching unit is connected between the second feed point and antenna body, and the 3rd impedance matching unit is connected between the 3rd feed point and antenna body.
In this technical scheme, by arranging impedance matching module, achieve the effect obtaining maximum power transmission, the effect of impedance matching module is to reduce power consumption by the impedance matching of electromagnetic transmission circuit, and then ensures that the energy that reception antenna receives can be transferred to rear stage to greatest extent and process. If the bad i.e. mismatch of the matching effect of antenna-matching circuit and antenna, producing echo in feeder line, echo arrival transmitter is eventually converted into heat and consumes, and at receiving terminal as mismatch causes signal reception bad, namely antenna performance is weakened. It addition, in antenna transmission parameter, standing-wave ratio is to characterize the Common Parameters of matching performance, and the more low expression matching performance of standing wave ratio is more good, and the more high expression matching performance of standing wave ratio is more poor.
Specifically, when high-frequency signal is transmitted to terminal along feeder line from top, on line, the curtage of each point will change by the beat of high frequency oscillation, this situation similarly is evoke a kind of invisible ripple on the line, if impedance is not mated with feeder line characteristic, then the high-frequency signal power transmitted all can not be absorbed.
According to the second aspect of the invention, it is also proposed that a kind of changing method, including: determine the connection status of the three-phase switching switch of antenna switching component according to radiofrequency signal waiting for transmission.
In this technical scheme, by determining the connection status of three-phase switching switch according to radiofrequency signal, it is achieved that fixing end and select the multiple combination connected mode of end, and then obtain and organize resonant condition more, meet the bandwidth demand that single resonance cannot cover.
Specifically, each antenna has center operating frequency, and when off-center operating frequency, some electrical property of antenna will decline, and electrical property drops to the frequency range of feasible value, it is simply that the bandwidth of antenna. One section of line is walked on main antenna side, high-frequency band part forms a standing wave makes bandwidth broaden with the fusion of main antenna high frequency standing wave, and earth point is to develop from dipole antenna, use limited ground level as other quarter-wave, the dipole antenna on constitution theory. The optimum position of so-called feed point is the position being easiest to electromagnetic wave energy to radiate with electric wave form. If feed point is placed on edge, the focus of mainboard electric current will be easier to concentrate on board edges, electric power between mainboard and antenna is easier to link together, and the multiple frequency ranges covered needed for main feed point (radiofrequency signal input point) and ground feed point (ground signalling input point) relative distance on antenna cabling and antenna are corresponding.
In technique scheme, it is preferable that determine the connection status of the three-phase switching switch of antenna switching component according to radiofrequency signal waiting for transmission, specifically include following state: resolve the working frequency range of radiofrequency signal; Determine the resonance band belonging to working frequency range; Corresponding relation according to resonance band and default connected mode, it is determined that three-phase switches the connected mode of switch, fixing end and the selection end connecting antenna switching component with default connected mode to control three-phase switching to switch.
In this technical scheme, by the position controlling to access the main feed point of antenna circuit and ground feed point according to the radiofrequency signal received, the main feed point and the ground feed point that make access antenna circuit are in running order, antenna circuit is made to produce resonance corresponding with control signal, meet the demand of different frequency range, enable the antenna to better receive and launch radiofrequency signal.
In technique scheme, preferably, before the three-phase determining antenna switching component according to radiofrequency signal waiting for transmission switches the connection status of switch, also comprise determining that three terminals in fixing end and the six kinds of default connected modes selecting three feed point in end to be connected one by one; Calculate under six kinds of default connected modes, six resonance band of antenna switching component; Store the one-to-one relationship of six resonance band and six kinds of default connected modes.
In this technical scheme, being determined by six kinds of resonance band corresponding to default connected mode, it is possible to quickly determine the resonance band belonging to radiofrequency signal, thus meeting the bandwidth requirement that single resonance cannot cover, improve the efficiency of radio signal transmission.
According to the third aspect of the invention we, it is also proposed that a kind of switched system, including: switch unit, for determining the connection status of the three-phase switching switch of antenna switching component according to radiofrequency signal waiting for transmission.
In this technical scheme, by determining the connection status of three-phase switching switch according to radiofrequency signal, it is achieved that fixing end and select the multiple combination connected mode of end, and then obtain and organize resonant condition more, meet the bandwidth demand that single resonance cannot cover.
Specifically, each antenna has center operating frequency, and when off-center operating frequency, some electrical property of antenna will decline, and electrical property drops to the frequency range of feasible value, it is simply that the bandwidth of antenna. One section of line is walked on main antenna side, high-frequency band part forms a standing wave makes bandwidth broaden with the fusion of main antenna high frequency standing wave, and earth point is to develop from dipole antenna, use limited ground level as other quarter-wave, the dipole antenna on constitution theory. The optimum position of so-called feed point is the position being easiest to electromagnetic wave energy to radiate with electric wave form. If feed point is placed on edge, the focus of mainboard electric current will be easier to concentrate on board edges, electric power between mainboard and antenna is easier to link together, and the multiple frequency ranges covered needed for main feed point (radiofrequency signal input point) and ground feed point (ground signalling input point) relative distance on antenna cabling and antenna are corresponding.
In technique scheme, it is preferable that switch unit also includes: resolution unit, for resolving the working frequency range of radiofrequency signal; Determine unit, for determining the resonance band belonging to working frequency range; Determine that unit is additionally operable to: the corresponding relation according to resonance band and default connected mode, it is determined that three-phase switches the connected mode of switch, fixing end and the selection end connecting antenna switching component with default connected mode to control three-phase switching to switch.
In this technical scheme, by the position controlling to access the main feed point of antenna circuit and ground feed point according to the radiofrequency signal received, the main feed point and the ground feed point that make access antenna circuit are in running order, antenna circuit is made to produce resonance corresponding with control signal, meet the demand of different frequency range, enable the antenna to better receive and launch radiofrequency signal.
In technique scheme, it is preferable that, it is determined that unit is additionally operable to: determine three terminals in fixing end and the six kinds of default connected modes selecting three feed point in end to be connected one by one; Switched system also includes: computing unit, is used for calculating under six kinds of default connected modes, six resonance band of antenna switching component; Memory element, for storing the one-to-one relationship of six resonance band and six kinds of default connected modes.
In this technical scheme, being determined by six kinds of resonance band corresponding to default connected mode, it is possible to quickly determine the resonance band belonging to radiofrequency signal, thus meeting the bandwidth requirement that single resonance cannot cover, improve the efficiency of radio signal transmission.
According to the fourth aspect of the invention, it is also proposed that a kind of antenna, including, such as the antenna switching component of above-mentioned any one, and/or the switched system of any of the above-described. Therefore, this antenna has the technique effect identical with switched system with the antenna switching component any one of technique scheme, does not repeat them here.
According to the fifth aspect of the invention, it is also proposed that a kind of mobile terminal, including, antenna described above. Therefore, this terminal has the technique effect identical with the antenna of technique scheme, does not repeat them here.
By above technical scheme, by arranging three-phase switching switch, the fixing multiple terminals held in antenna switching component and selecting multiple feed point of end, achieve fixing end and select the multiple combination connected mode of end, and then obtain and organize resonant condition more, meet the bandwidth demand that single resonance cannot cover.
Accompanying drawing explanation
Fig. 1 illustrates the schematic diagram of antenna switching component according to an embodiment of the invention;
Fig. 2 illustrates the schematic flow diagram of changing method according to an embodiment of the invention;
Fig. 3 illustrates the schematic block diagram of switched system according to an embodiment of the invention;
Fig. 4 illustrates the schematic block diagram of antenna according to an embodiment of the invention;
Fig. 5 illustrates the schematic block diagram of mobile terminal according to an embodiment of the invention;
Fig. 6 illustrates the first connection status schematic diagram that antenna feed point accesses according to an embodiment of the invention;
Fig. 7 illustrates the second connection status schematic diagram that antenna feed point accesses according to an embodiment of the invention;
Fig. 8 illustrates the 3rd connection status schematic diagram that antenna feed point accesses according to an embodiment of the invention;
Fig. 9 illustrates the test waveform figure of resonant frequency according to an embodiment of the invention;
Figure 10 illustrates the schematic diagram of antenna switching component according to an embodiment of the invention.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail. It should be noted that when not conflicting, embodiments herein and the feature in embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention; but; the present invention can also adopt third party to be different from third party's mode described here to implement, and therefore, protection scope of the present invention is by the restriction of following public specific embodiment.
Fig. 1 illustrates the schematic diagram of antenna switching component according to an embodiment of the invention.
As it is shown in figure 1, antenna switching component 100 according to an embodiment of the invention, including: three-phase switching switch 102; Fixing end and selection end, fix the first terminal 1022 in end and the second equal ground connection of terminal 1024, the 3rd terminal 1026 in fixing end is connected to radio frequency processing module 108, selecting end 1024 to be connected to the first feed point the 1042, second feed point 1044 and the 3rd feed point 1046 of antenna body, arbitrary terminal in first end the 1022, second end 1024 and the 3rd end 1026 and first feed point the 1042, second feed point 1044 and the arbitrary feed point in the 3rd feed point 1046 are by three-phase switching switch 102 connection.
In this technical scheme, by arranging three-phase switching switch, the fixing multiple terminals held in antenna switching component and selecting multiple feed point of end, achieve fixing end and select the multiple combination connected mode of end, and then obtain and organize resonant condition more, meet the bandwidth demand that single resonance cannot cover.
Specifically, each antenna has center operating frequency, and when off-center operating frequency, some electrical property of antenna will decline, and electrical property drops to the frequency range of feasible value, it is simply that the bandwidth of antenna. One section of line is walked on main antenna side, high-frequency band part forms a standing wave makes bandwidth broaden with the fusion of main antenna high frequency standing wave, and earth point is to develop from dipole antenna, use limited ground level as other quarter-wave, dipole antenna on constitution theory, the optimum position of so-called feed point is the position being easiest to electromagnetic wave energy to radiate with electric wave form. If feed point is placed on edge, the focus of mainboard electric current will be easier to concentrate on board edges, electric power between mainboard and antenna is easier to link together, and the multiple frequency ranges covered needed for main feed point (radiofrequency signal input point) and ground feed point (ground signalling input point) relative distance on antenna cabling and antenna are corresponding.
In technique scheme, preferably, also include: impedance matching module, it is connected between selection end and antenna body 104, impedance matching module includes the first impedance matching unit the 1062, second impedance matching unit 1064 and the 3rd impedance matching unit 1064, wherein, first impedance matching unit 1062 is connected between the first feed point 1042 and antenna body 104, second impedance matching unit 1064 is connected between the second feed point 1044 and antenna body 104, and the 3rd impedance matching list 1066 yuan is connected between the 3rd feed point 1046 and antenna body 104.
In this technical scheme, by arranging impedance matching module, achieve the effect obtaining maximum power transmission, the effect of impedance matching module is to reduce power consumption by the impedance matching of electromagnetic transmission circuit, and then ensures that the energy that reception antenna receives can be transferred to rear stage to greatest extent and process. If the bad i.e. mismatch of the matching effect of antenna-matching circuit and antenna, producing echo in feeder line, echo arrival transmitter is eventually converted into heat and consumes, and at receiving terminal as mismatch causes signal reception bad, namely antenna performance is weakened. It addition, in antenna transmission parameter, standing-wave ratio is to characterize the Common Parameters of matching performance, and the more low expression matching performance of standing wave ratio is more good, and the more high expression matching performance of standing wave ratio is more poor.
Specifically, when high-frequency signal is transmitted to terminal along feeder line from top, on line, the curtage of each point will change by the beat of high frequency oscillation, this situation similarly is evoke a kind of invisible ripple on the line, if impedance is not mated with feeder line characteristic, then the high-frequency signal power transmitted all can not be absorbed.
Fig. 2 illustrates the schematic flow diagram of changing method according to an embodiment of the invention.
As in figure 2 it is shown, changing method according to an embodiment of the invention, including: step 202, the connection status of the three-phase switching switch of antenna switching component is determined according to radiofrequency signal waiting for transmission.
In this technical scheme, by determining the connection status of three-phase switching switch according to radiofrequency signal, it is achieved that fixing end and select the multiple combination connected mode of end, and then obtain and organize resonant condition more, meet the bandwidth demand that single resonance cannot cover.
Specifically, each antenna has center operating frequency, and when off-center operating frequency, some electrical property of antenna will decline, and electrical property drops to the frequency range of feasible value, it is simply that the bandwidth of antenna. One section of line is walked on main antenna side, high-frequency band part forms a standing wave makes bandwidth broaden with the fusion of main antenna high frequency standing wave, and earth point is to develop from dipole antenna, use limited ground level as other quarter-wave, the dipole antenna on constitution theory. The optimum position of so-called feed point is the position being easiest to electromagnetic wave energy to radiate with electric wave form. If feed point is placed on edge, the focus of mainboard electric current will be easier to concentrate on board edges, electric power between mainboard and antenna is easier to link together, and the multiple frequency ranges covered needed for main feed point (radiofrequency signal input point) and ground feed point (ground signalling input point) relative distance on antenna cabling and antenna are corresponding.
In technique scheme, it is preferable that determine the connection status of the three-phase switching switch of antenna switching component according to radiofrequency signal waiting for transmission, specifically include following state: resolve the working frequency range of radiofrequency signal; Determine the resonance band belonging to working frequency range; Corresponding relation according to resonance band and default connected mode, it is determined that three-phase switches the connected mode of switch, fixing end and the selection end connecting antenna switching component with default connected mode to control three-phase switching to switch.
In this technical scheme, by the position controlling to access the main feed point of antenna circuit and ground feed point according to the radiofrequency signal received, the main feed point and the ground feed point that make access antenna circuit are in running order, antenna circuit is made to produce resonance corresponding with control signal, meet the demand of different frequency range, enable the antenna to better receive and launch radiofrequency signal.
In technique scheme, preferably, before the three-phase determining antenna switching component according to radiofrequency signal waiting for transmission switches the connection status of switch, also comprise determining that three terminals in fixing end and the six kinds of default connected modes selecting three feed point in end to be connected one by one; Calculate under six kinds of default connected modes, six resonance band of antenna switching component; Store the one-to-one relationship of six resonance band and six kinds of default connected modes.
In this technical scheme, being determined by six kinds of resonance band corresponding to default connected mode, it is possible to quickly determine the resonance band belonging to radiofrequency signal, thus meeting the bandwidth requirement that single resonance cannot cover, improve the efficiency of radio signal transmission.
Fig. 3 illustrates the schematic block diagram of switched system according to an embodiment of the invention.
As it is shown on figure 3, switched system 300 according to an embodiment of the invention, including: switch unit 302, for determining the connection status of the three-phase switching switch of antenna switching component according to radiofrequency signal waiting for transmission.
In this technical scheme, by determining the connection status of three-phase switching switch according to radiofrequency signal, it is achieved that fixing end and select the multiple combination connected mode of end, and then obtain and organize resonant condition more, meet the bandwidth demand that single resonance cannot cover.
Specifically, each antenna has center operating frequency, and when off-center operating frequency, some electrical property of antenna will decline, and electrical property drops to the frequency range of feasible value, it is simply that the bandwidth of antenna. One section of line is walked on main antenna side, high-frequency band part forms a standing wave makes bandwidth broaden with the fusion of main antenna high frequency standing wave, and earth point is to develop from dipole antenna, use limited ground level as other quarter-wave, the dipole antenna on constitution theory. The optimum position of so-called feed point is the position being easiest to electromagnetic wave energy to radiate with electric wave form. If feed point is placed on edge, the focus of mainboard electric current will be easier to concentrate on board edges, electric power between mainboard and antenna is easier to link together, and the multiple frequency ranges covered needed for main feed point (radiofrequency signal input point) and ground feed point (ground signalling input point) relative distance on antenna cabling and antenna are corresponding.
In technique scheme, it is preferable that switch unit 302 also includes: resolution unit 3022, for resolving the working frequency range of radiofrequency signal; Determine unit 3024, for determining the resonance band belonging to working frequency range; Determine that unit 3024 is additionally operable to: the corresponding relation according to resonance band and default connected mode, it is determined that three-phase switches the connected mode of switch, fixing end and the selection end connecting antenna switching component with default connected mode to control three-phase switching to switch.
In this technical scheme, by the position controlling to access the main feed point of antenna circuit and ground feed point according to the radiofrequency signal received, the main feed point and the ground feed point that make access antenna circuit are in running order, antenna circuit is made to produce resonance corresponding with control signal, meet the demand of different frequency range, enable the antenna to better receive and launch radiofrequency signal.
In technique scheme, it is preferable that, it is determined that unit 3024 is additionally operable to: determine three terminals in fixing end and the six kinds of default connected modes selecting three feed point in end to be connected one by one; Switched system also includes: computing unit 304, is used for calculating under six kinds of default connected modes, six resonance band of antenna switching component; Memory element 306, for storing the one-to-one relationship of six resonance band and six kinds of default connected modes.
In this technical scheme, being determined by six kinds of resonance band corresponding to default connected mode, it is possible to quickly determine the resonance band belonging to radiofrequency signal, thus meeting the bandwidth requirement that single resonance cannot cover, improve the efficiency of radio signal transmission.
Fig. 4 illustrates the schematic block diagram of antenna according to an embodiment of the invention.
As shown in Figure 4, antenna 400 according to an embodiment of the invention, including, antenna switching component 100 such as above-mentioned any one, and/or the switched system 300 of any of the above-described, therefore, this antenna has the technique effect identical with switched system 300 with the antenna switching component 100 any one of technique scheme, does not repeat them here.
Fig. 5 illustrates the schematic block diagram of mobile terminal according to an embodiment of the invention.
As it is shown in figure 5, mobile terminal 500 according to an embodiment of the invention, including, antenna 400 described above, therefore, this mobile terminal have antenna 400 with technique scheme with technique effect, do not repeat them here.
Below in conjunction with Fig. 6 to Fig. 9, the antenna switching scheme according to the present invention is further described.
Fig. 6 illustrates the first connection status schematic diagram that antenna feed point accesses according to an embodiment of the invention.
As shown in Figure 6, antenna body is provided with the first feed point, second feed point and the 3rd feed point, wherein, first ground signalling accesses the first feed point by three-phase switching switch, second ground signalling accesses the first feed point the 3rd feed point by three-phase switching switch, form two ground feed point, radiofrequency signal accesses the second feed point by three-phase switching switch, form main feed point, being provided with the first impedance matching unit between antenna body and switching switch, the second impedance matching unit and the 3rd impedance matching unit, the oscillogram of generation is such as shown in Fig. 9 the first connection status.
Fig. 7 illustrates the second connection status schematic diagram that antenna feed point accesses according to an embodiment of the invention.
As shown in Figure 7, antenna body is provided with the first feed point, second feed point and the 3rd feed point, wherein, first ground signalling accesses the second feed point by three-phase switching switch, second ground signalling accesses the 3rd feed point by three-phase switching switch, form two ground feed point, radiofrequency signal accesses the first feed point by three-phase switching switch, form main feed point, being provided with the first impedance matching unit between antenna body and switching switch, the second impedance matching unit and the 3rd impedance matching unit, the waveform of generation is such as shown in Fig. 9 the second connection status.
Fig. 8 illustrates the 3rd connection status schematic diagram that antenna feed point accesses according to an embodiment of the invention.
As shown in Figure 8, antenna body is provided with the first feed point, second feed point and the 3rd feed point, wherein, first ground signalling accesses the first feed point by three-phase switching switch, second ground signalling accesses the second feed point by three-phase switching switch, form two ground feed point, radiofrequency signal accesses the 3rd feed point by three-phase switching switch, form main feed point, being provided with the first impedance matching unit between antenna body and switching switch, the second impedance matching unit and the 3rd impedance matching unit, the oscillogram of generation is shown in such as shown in Fig. 9 the 3rd connection status.
Fig. 9 illustrates the test waveform figure of resonant frequency according to an embodiment of the invention.
As shown in Figure 9, for the harmonic wave figure of in Fig. 6 to Fig. 8 three kinds of resonant conditions, wherein, the input signal of X-axis is resonant frequency, unit: MHz, the output signal of Y-axis is standing-wave ratio (SWR, VoltageStandingWaveRatio), refer to standing wave antinode voltage and peak voltage amplitude only than, when standing-wave ratio is equal to 1, the impedance of mark feeder line and antenna is mated completely, and now high-frequency energy is all gone out by aerial radiation, it does not have the reflection loss of energy.
Additionally, be worth it is emphasized that, in order to widen the working frequency range of antenna further, antenna switching component can also be set and include multiple radio frequency processing module (as M, M is the integer be more than or equal to 2) and multiple ground terminal (as N number of, N is the integer be more than or equal to 1), correspondingly, the number of switching switch is equal to M+N, concrete connection is as shown in Figure 10, antenna switching component includes: the first feed point, second feed point and the 3rd feed point, and first radiofrequency signal, second radiofrequency signal and ground signalling, and connected by three-phase switching switch, specifically, first feed point is connected to the first radiofrequency signal, second feed point is connected to the second radiofrequency signal, and the 3rd feed point be connected to ground signalling, wherein, connected mode is equally possible switches to six kinds.
In conjunction with Fig. 6 to 10 it can be seen that switch in different connection status by controlling three-phase switching, it is possible to make antenna produce the resonance of different frequency range, by wider frequency can be covered after combining.
Technical scheme is described in detail above in association with accompanying drawing, consider how correlation technique designs a kind of antenna switching scheme to realize the technical problem of the communication requirement of multiband, the present invention proposes a kind of new antenna switching scheme, by arranging three-phase switching switch, the fixing multiple terminals held in antenna switching component and selecting multiple feed point of end, achieve fixing end and select the multiple combination connected mode of end, and then obtain and organize resonant condition more, meet the bandwidth demand that single resonance cannot cover.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. an antenna switching component, the side of described antenna switching component is connected to the antenna body for transmitting radio frequency signal, and the opposite side of described antenna switching component is connected to radio frequency processing module, it is characterised in that described antenna switching component includes:
Three-phase switching switch;
Fixing end and selection end, the first terminal in described fixing end and the equal ground connection of the second terminal, the 3rd terminal in described fixing end is connected to described radio frequency processing module, described selection end is connected to the first feed point of described antenna body, the second feed point and the 3rd feed point, the arbitrary terminal in described first end, described second end and described 3rd end and the arbitrary feed point in described first feed point, described second feed point and described 3rd feed point and is connected by described three-phase switching switch.
2. antenna switching component according to claim 1, it is characterised in that also include:
Impedance matching module, is connected between described selection end and described antenna body, and described impedance matching module includes the first impedance matching unit, the second impedance matching unit and the 3rd impedance matching unit,
Wherein, described first impedance matching unit is connected between described first feed point and described antenna body, described second impedance matching unit is connected between described second feed point and described antenna body, and described 3rd impedance matching unit is connected between described 3rd feed point and described antenna body.
3. a changing method, it is adaptable to antenna switching component, it is characterised in that described changing method includes:
The connection status of the three-phase switching switch of described antenna switching component is determined according to radiofrequency signal waiting for transmission.
4. changing method according to claim 3, it is characterised in that determine the connection status of the three-phase switching switch of described antenna switching component according to radiofrequency signal waiting for transmission, specifically include following state:
Resolve the working frequency range of described radiofrequency signal;
Determine the resonance band belonging to described working frequency range;
Corresponding relation according to described resonance band and described default connected mode, it is determined that described three-phase switches the connected mode of switch, fixing end and the selection end connecting described antenna switching component with described default connected mode to control the switching of described three-phase to switch.
5. changing method according to claim 4, it is characterised in that before the three-phase determining described antenna switching component according to radiofrequency signal waiting for transmission switches the connection status of switch, also include:
Determine six kinds of default connected modes that three terminals in described fixing end are connected one by one with three feed point in described selection end;
Calculate under described six kinds of default connected modes, six resonance band of described antenna switching component;
Store the one-to-one relationship of described six resonance band and described six kinds of default connected modes.
6. a switched system, it is adaptable to antenna switching component, it is characterised in that described switched system includes:
Switch unit, for determining the connection status of the three-phase switching switch of described antenna switching component according to radiofrequency signal waiting for transmission.
7. switched system according to claim 6, it is characterised in that described switch unit also includes:
Resolution unit, for resolving the working frequency range of described radiofrequency signal;
Determine unit, for determining the resonance band belonging to described working frequency range;
Described determine that unit is additionally operable to: the corresponding relation according to described resonance band and described default connected mode, determine that described three-phase switches the connected mode of switch, fixing end and the selection end connecting described antenna switching component with described default connected mode to control the switching of described three-phase to switch.
8. switched system according to claim 7, it is characterised in that
Described determine that unit is additionally operable to: six kinds of default connected modes that three terminals determining in described fixing end are connected one by one with three feed point in described selection end;
Described switched system also includes:
Computing unit, is used for calculating under described six kinds of default connected modes, six resonance band of described antenna switching component;
Memory element, for storing the one-to-one relationship of described six resonance band and described six kinds of default connected modes.
9. an antenna, it is characterised in that include, antenna switching component as claimed in claim 1 or 2, and/or the switched system as according to any one of claim 6 to 8.
10. a mobile terminal, it is characterised in that including: antenna as claimed in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610046317.8A CN105633555B (en) | 2016-01-25 | 2016-01-25 | Antenna switching component, switching method, switching system, antenna and mobile terminal |
| PCT/CN2016/074841 WO2017128480A1 (en) | 2016-01-25 | 2016-02-29 | Antenna switching assembly, switching method, switching system, antenna, and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610046317.8A CN105633555B (en) | 2016-01-25 | 2016-01-25 | Antenna switching component, switching method, switching system, antenna and mobile terminal |
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| Publication Number | Publication Date |
|---|---|
| CN105633555A true CN105633555A (en) | 2016-06-01 |
| CN105633555B CN105633555B (en) | 2018-11-30 |
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| CN201610046317.8A Active CN105633555B (en) | 2016-01-25 | 2016-01-25 | Antenna switching component, switching method, switching system, antenna and mobile terminal |
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| Country | Link |
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| CN (1) | CN105633555B (en) |
| WO (1) | WO2017128480A1 (en) |
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| CN108958013A (en) * | 2018-09-13 | 2018-12-07 | 广东小天才科技有限公司 | A kind of smartwatch and control method with double-antenna structure |
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| WO2017128480A1 (en) | 2017-08-03 |
| CN105633555B (en) | 2018-11-30 |
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