CN107370496B - An antenna switching system and mobile terminal - Google Patents
An antenna switching system and mobile terminal Download PDFInfo
- Publication number
- CN107370496B CN107370496B CN201710756290.6A CN201710756290A CN107370496B CN 107370496 B CN107370496 B CN 107370496B CN 201710756290 A CN201710756290 A CN 201710756290A CN 107370496 B CN107370496 B CN 107370496B
- Authority
- CN
- China
- Prior art keywords
- antenna
- switch
- type flip
- flip flop
- switching system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007423 decrease Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 7
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
- H03K3/356—Bistable circuits
- H03K3/3562—Bistable circuits of the primary-secondary type
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention provides a kind of antenna switching system and mobile terminal, the antenna switching system includes rf processor, baseband processor, power amplifier, antenna tuning device and d type flip flop, the output end of the baseband processor is connect with the data input pin of the d type flip flop, the output end of the rf processor is connect with the input end of clock of the d type flip flop, and the output end of the d type flip flop is connect with the antenna tuning device；The rf processor is used for the d type flip flop output level skip signal described in the forward direction for sending signal to the power amplifier, the d type flip flop is used for when receiving the level jump signal, the signal that the data input pin for exporting the d type flip flop to the antenna tuning device inputs.In this way, the antenna switching system control antenna tuning device can switch over before power amplifier sends signal, the safety of antenna tuning device is protected, avoids generating non-linear spuious.
Description
Technical field
The present invention relates to antenna technical field more particularly to a kind of antenna switching systems and mobile terminal.
Background technique
The main components that antenna is carried out wireless communication as mobile terminal, performance are easy the shadow by many factors
It rings, such as the factors such as temperature, extraneous shelter, angle can all influence the performance of antenna.It can be to each factor in existing many schemes
It is detected, then further antenna is switched over according to detection case, so that antenna performance reaches optimum state.
Since the control signal and power amplified signal that switch over to antenna are issued by different controllers, the two
It is easy to appear nonsynchronous situation, is easy to damage antenna tuning device.For example, if power amplifier receives power
Amplified signal and after having sent signal, control signal control antenna tuning device switches over, and is easy to cause antenna tuning
Device generates heat in handoff procedure and damages antenna tuning device, and then is easy to produce non-linear spuious.
As it can be seen that antenna switching system in the prior art is easy to damage antenna tuning device.
Summary of the invention
The embodiment of the present invention provides a kind of antenna switching system and mobile terminal, to solve antenna switching in the prior art
System is easy to the hurtful problem of antenna tuning device.
In a first aspect, the embodiment of the invention provides a kind of antenna switching system, including rf processor, Base-Band Processing
Device, power amplifier, antenna tuning device and at least one first antenna being connect with the antenna tuning device, the day
Line switching system further includes d type flip flop, and the output end of the baseband processor is connect with the data input pin of the d type flip flop,
The output end of the rf processor is connect with the input end of clock of the d type flip flop, the output end of the d type flip flop with it is described
The connection of antenna tuning device；
The rf processor is used for the d type flip flop output level described in the forward direction for sending signal to the power amplifier
Skip signal, the d type flip flop are used for when receiving the level jump signal, to described in antenna tuning device output
The signal of the data input pin input of d type flip flop.
Second aspect, the embodiment of the present invention also provide a kind of mobile terminal, including antenna provided in an embodiment of the present invention is cut
Change system.
In the embodiment of the present invention, the antenna switching system include rf processor, baseband processor, power amplifier,
Antenna tuning device and at least one first antenna connecting with the antenna tuning device, the antenna switching system also wrap
D type flip flop is included, the output end of the baseband processor is connect with the data input pin of the d type flip flop, the rf processor
Output end connect with the input end of clock of the d type flip flop, the output end of the d type flip flop and the antenna tuning device connect
It connects；The rf processor is used for the d type flip flop output level jump described in the forward direction for sending signal to the power amplifier
Signal, the d type flip flop are used for when receiving the level jump signal, export the D touching to the antenna tuning device
Send out the signal of the data input pin input of device.In this way, the antenna switching system can be before power amplifier sends signal
Control antenna tuning device switches over, and avoids damaging antenna tuning device, protects the safety of antenna tuning device, keeps away
Exempt to generate non-linear spuious.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention
Example is applied, it for those of ordinary skill in the art, without any creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of antenna switching system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another antenna switching system provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another antenna switching system provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another antenna switching system provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another antenna switching system provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another antenna switching system provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is a kind of structural schematic diagram of antenna switching system provided in an embodiment of the present invention, the system
Applied to mobile terminal, as shown in Figure 1, antenna switching system 100 includes: rf processor 101, baseband processor 102, D touching
Send out device 103, antenna tuning device 104 and at least one first antenna 105 connecting with the antenna tuning device 104, institute
Stating antenna switching system 100 further includes the power amplifier 106 connecting with the rf processor 101, the power amplifier
The 106 power amplified signal amplification radio-frequency powers sent for responding the rf processor 101.
The d type flip flop 103 includes data input pin D, input end of clock CLK and output end Q, and the output end Q exists
When the signal of the input end of clock CLK input jumps, signal identical with the data input pin D is exported.
The output end of the baseband processor 102 is connect with the data input pin D of the d type flip flop 103, at the radio frequency
Reason device 101 output end connect with the input end of clock CLK of the d type flip flop 103, the output end Q of the d type flip flop 103 and
The antenna tuning device 104 connects.
The rf processor 101 is used for the d type flip flop described in the forward direction for sending signal to the power amplifier 106
103 output level skip signals, the d type flip flop 103 is used for when receiving the level jump signal, to the antenna tune
Humorous device 104 exports the signal of the data input pin D input of the d type flip flop 103.
In above-mentioned antenna switching system, the input terminal of the baseband processor 102 can connect at least one sensor, example
Such as sensor 107 as shown in Figure 2, the baseband processor 102 is used for the data according at least one sensor detection
Output control signals to the data input pin D of the d type flip flop 103.The d type flip flop 103 is receiving the control signal
After will not make an immediate response, but when the input end of clock CLK receives level jump signal, export the data input pin
The control signal of D input.Control of the antenna tuning device 104 in the output end Q output for receiving the d type flip flop 103
After signal, at least one described first antenna 105 is switched over according to the control signal.The rf processor 101 is used
Power amplifier 106 described in Yu Xiang sends output level skip signal before signal, in such manner, it is possible to ensure to put in the power
The control signal that the antenna tuning device 104 is exported according to the baseband processor 102 is controlled before 106 amplifying power of big device
It switches over.
The antenna tuning device 104 may include switch and/or variable capacitance, 103 rising edge of the d type flip flop triggering
Device or failing edge trigger, accordingly, the level jump signal of the output end output of the rf processor 101 are to rise to jump
Varying signal or decline saltus step signal.
In the present embodiment, above-mentioned mobile terminal can be any mobile terminal for being able to carry out GSM, 3G and 4G communication, example
Such as: mobile phone, tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer), a number
Word assistant (personal digital assistant, abbreviation PDA), mobile Internet access device (Mobile Internet
Device, MID) or wearable device (Wearable Device) etc..
In the present embodiment, antenna tune can be controlled before power amplifier sends signal by above-mentioned antenna switching system
Humorous device switches over, and protects the safety of antenna tuning device, avoids generating non-linear spuious.
Referring to Fig. 3, Fig. 3 is the structural schematic diagram of another antenna switching system provided in an embodiment of the present invention, this is
System is applied to mobile terminal, and the present embodiment and the main distinction of embodiment shown in FIG. 1 are that the present embodiment further limits institute
Stating antenna tuning device is first switch, and the number of the first antenna is two.As shown in figure 3, antenna switching system 300 wraps
It includes rf processor 301, baseband processor 302, d type flip flop 303, first switch 304 and is connect with the first switch 304
Two first antennas 3051,3052.The antenna switching system 300 further includes the function connecting with the rf processor 301
Rate amplifier 310, the power amplifier 310 are used to respond the power amplified signal amplification that the rf processor 301 is sent
Radio-frequency power.
Connection relationship between the d type flip flop 303 and the rf processor 301 and the baseband processor 302
Between d type flip flop 103 and the rf processor 101 and the baseband processor 102 described in embodiment shown in FIG. 1
Connection relationship it is identical, details are not described herein again.
The first switch 304 can be a single-pole double-throw switch (SPDT), as shown in Fig. 2, the first switch 304 includes control
End 3041, first end 3042, second end 3043 and third end 3044, the first end 3042 connect main transmitting receiving path
306, the second end 3043 and third end 3044 are separately connected described two first antennas 3051,3052, and described first opens
The control terminal 3041 of pass 304 connects the output end Q of the d type flip flop 303, the signal for exporting according to the d type flip flop 303
The first end 3042 and the second end 3043 for controlling the first switch 304 are connected, or the control first end 3042 with
The third end 3044 is connected.That is, the first switch 304 controls institute according to the signal that the d type flip flop 303 exports
It states main transmitting receiving path 306 and connects first antenna 3051, or the control main transmitting receiving path 306 connects first antenna
3052, i.e., it is to connect the main transmitting according to the signal control switching first antenna 3051 or 3052 of the d type flip flop 303 output
The antenna of receiving path 306.
The rf processor 301 is used for the output level jump letter before sending signal to the power amplifier 310
Number, the d type flip flop 303 is used for when receiving the level jump signal, exports the D touching to the first switch 304
Send out the signal of the data input pin D input of device 303.In such manner, it is possible to ensure to control before 310 amplifying power of power amplifier
It makes the first switch 304 to switch over, the first switch 304 is avoided to generate heat in handoff procedure and damage.
For example, the baseband processor 302 is connect with attitude transducer or proximity sensor, the mobile terminal
Communication (the first end 3042 and the second end of the i.e. described first switch 304 is currently realized by the first antenna 3051
3043 conductings).Assuming that the baseband processor 302 determines that user's transverse screen holds institute according to the data that the attitude transducer detects
Mobile terminal is stated, and then determines that the first antenna 3051 in the mobile terminal top is held by a user；Or close sensing
The data of device detection determine that first antenna 3051 is blocked by user, and the baseband processor 302 can send control signal control
The first end 3042 of the first switch 304 and the third end 3044 are connected, to realize that antenna switches, it is ensured that mobile terminal
Antenna communication performance.
Optionally, as shown in figure 4, the antenna switching system 300 further includes second switch 308 and the second antenna 309,
First common end 3082 of the second switch 308 connects main transmitting receiving path 306, and the second of the second switch 308 is public
3083 connection diversity reception access 307 of end altogether, the first connecting pin 3084 of the second switch 308 connects second antenna
309, the second connection end 3085 of the second switch 308 is connect with the first end 3042 of the first switch 304；
The first common end 3082 and first connecting pin 3084 of the second switch 308 are connected, and described second opens
Close 308 the second common end 3083 and the second connection end 3085 conducting；Or the first common end of the second switch 308
3082 are connected with the second connection end 3085, and the second common end 3083 of the second switch 308 is connect with described first
3084 conducting of end.
In the embodiment, the second switch 308 is double-point double-throw switch, the first switch 304 and described second
Switch 308 can be realized the switching between the first antenna 3051,3052 and second antenna 309.
For example, it is assumed that the first common end 3082 of the second switch 308 connects the second connection end 3085, the
Two common ends 3083 connect first connecting pin 3084, i.e., the described main transmitting receiving path 306 connects first antenna 3051, point
Collection receiving path 307 connects second antenna 309.The first antenna 3051 and second antenna 309 are arranged in institute
The upper and lower side of mobile terminal is stated, the middle part of the mobile terminal is arranged in the first antenna 3052.Described in being held when user's transverse screen
When mobile terminal, the baseband processor 302 detects the first antenna according to attitude transducer or proximity sensor
3051 and second antenna 309 blocked by user, control signal can be sent control the first switch 304 and be cut
It changes, i.e., the first end 3042 of the first switch 304 and the third end 3044 is connected, connect the main transmitting to realize
Receipts access 306 is switched to be connect with the first antenna 3052, so that the mobile terminal can be by not blocked by user
First antenna 3052 realize communication.
It is connect it is understood that can be switched by the on state for controlling the second switch 308 with the main transmitting
Receive the antenna of access 306 and the diversity reception access 307 connection.As described in Figure 3, the control terminal of the second switch 308
The 3081 connection rf processors 301, the signal that can be sent according to the rf processor 301 control the second switch
308 on state.The control terminal 3081 of the second switch 308 can be with the input end of clock CLK of the d type flip flop 303
The input end of clock CLK of multiplexing, i.e., the control terminal 3081 of the described second switch 308 and the d type flip flop 303 with the radio frequency
The output end of processor 301 connects.In some embodiment of the invention, the input end of clock CLK of the d type flip flop 303 can also
With the output end with rf processor 301 described in other multiplexed ports.
Optionally, the control terminal 3081 of the second switch 308 is connect with the output end of the rf processor 301, institute
It states second switch 308 and controls the first of the second switch 308 according to the signal that the output end of the rf processor 301 exports
Common end 3082 and first connecting pin 3084 are connected, and second common end 3083 is led with the second connection end 3085
It is logical；Or the first common end 3082 of the control second switch 308 is connected with the second connection end 3085, and described second
Common end 3083 and first connecting pin 3084 are connected.
In the embodiment, the input end of clock CLK of the control terminal 3081 of the second switch 308 and the d type flip flop 303
It is multiplexed the output end of the rf processor 301.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram of another antenna switching system provided in an embodiment of the present invention, this is
System is applied to mobile terminal, and the present embodiment and the main distinction of embodiment shown in FIG. 1 are that the present embodiment further limits institute
Antenna tuning device is stated as third switch.As shown in figure 5, antenna switching system 500 includes: rf processor 501, Base-Band Processing
Device 502, d type flip flop 503, third switch 504 and the first antenna 505 being connect with the third switch 504.The antenna is cut
Changing system 500 further includes the power amplifier 507 connecting with the rf processor 501, and the power amplifier 507 is for ringing
The power amplified signal amplification radio-frequency power for answering the rf processor 501 to send.
Connection relationship between the d type flip flop 503 and the rf processor 501 and the baseband processor 502
Between d type flip flop 103 and the rf processor 101 and the baseband processor 102 described in embodiment shown in FIG. 1
Connection relationship it is identical, details are not described herein again.
The control terminal 5041 of the third switch 504 connects the output end Q of the d type flip flop 503, the first connecting pin 5042
Ground connection, second connection end 5043 connect the middle part of the first antenna 505, end and the feed 506 of the first antenna 505
One end connection, the other end ground connection of the feed 506, the third switch 504 are used to adjust the length of the first antenna 505
Degree.For example, when human body close to when, frequency deviation occurs for the first antenna 505, and the baseband processor 502 can pass through control
The length that the third switch 504 adjusts the first antenna 505 is made, so as to effectively inhibit the first antenna 505
Frequency deviation.
The rf processor 501 is used for the output level jump letter before sending signal to the power amplifier 507
Number, the d type flip flop 503 is used for when receiving the level jump signal, exports the D touching to the third switch 504
Send out the signal of the data input pin D input of device 503.In such manner, it is possible to ensure to control before 507 amplifying power of power amplifier
The length that the first antenna 505 is adjusted in the third switch 504 is made, avoids the third switch 504 in adjustment process
Middle generation is hot and damages.
Referring to Fig. 6, Fig. 6 is the structural schematic diagram of another antenna switching system provided in an embodiment of the present invention, this is
System is applied to mobile terminal, and the present embodiment and the main distinction of embodiment shown in FIG. 1 are that the present embodiment further limits institute
Stating antenna tuning device is the 4th switch.As shown in fig. 6, antenna switching system 600 includes: rf processor 601, Base-Band Processing
Device 602, d type flip flop 603, the 4th switch 604 and the first antenna 605 being connect with the 4th switch 604.The antenna is cut
Changing system 600 further includes the power amplifier 607 connecting with the rf processor 601, and the power amplifier 607 is for ringing
The power amplified signal amplification radio-frequency power for answering the rf processor 601 to send.
Connection relationship between the d type flip flop 603 and the rf processor 601 and the baseband processor 602
Between d type flip flop 103 and the rf processor 101 and the baseband processor 102 described in embodiment shown in FIG. 1
Connection relationship it is identical, details are not described herein again.
The control terminal 6041 of 4th switch 604 connects the output end Q of the d type flip flop 603, the first connecting pin 6042
Ground connection, second connection end 6043 are connected between the first antenna 605 and feed 606, and the feed 606 connects described first
The middle part of antenna 605, for adjusting the impedance matching of the first antenna 605.
The rf processor 601 is used for the output level jump letter before sending signal to the power amplifier 607
Number, the d type flip flop 603 is used for when receiving the level jump signal, exports the D touching to the 4th switch 604
Send out the signal of the data input pin D input of device 603.In such manner, it is possible to ensure to control before 607 amplifying power of power amplifier
The impedance matching that the 4th switch 604 adjusts the first antenna 605 is made, avoids the 4th switch 604 in adjustment process
Middle generation is hot and damages.
The embodiment of the present invention also provides a kind of mobile terminal, which includes any one implementation in the embodiment of the present invention
The antenna switching system of mode.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In embodiment provided herein, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or unit
It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program code
Medium.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of antenna switching system, including rf processor, baseband processor, power amplifier, antenna tuning device and
At least one first antenna being connect with the antenna tuning device, which is characterized in that the antenna switching system further includes D touching
Device is sent out, the output end of the baseband processor is connect with the data input pin of the d type flip flop, the output of the rf processor
End is connect with the input end of clock of the d type flip flop, and the output end of the d type flip flop is connect with the antenna tuning device；
The rf processor is used for the d type flip flop output level jump described in the forward direction for sending signal to the power amplifier
Signal, the d type flip flop are used for when receiving the level jump signal, export the D touching to the antenna tuning device
Send out the signal of the data input pin input of device.
2. antenna switching system as described in claim 1, which is characterized in that the antenna tuning device include switch and/or
Variable capacitance.
3. antenna switching system as claimed in claim 2, which is characterized in that the antenna tuning device includes at least first and opens
It closes, the antenna switching system includes two first antennas；
The first end of the first switch connects main transmitting receiving path, the second end of the first switch and third end difference
It is connect with described two first antennas, the control terminal of the first switch connects the output end of the d type flip flop, for according to institute
The signal for stating d type flip flop output controls the first end of the first switch and is connected with the second end of the first switch, or controls
The first end for making the first switch is connected with the third end.
4. antenna switching system as claimed in claim 3, which is characterized in that the antenna switching system further includes second switch
And second antenna, the first common end of the second switch connect main transmitting receiving path, the second of the second switch is public
First connecting pin of end connection diversity reception access altogether, the second switch connects second antenna, the second switch
Second connection end is connect with the first end of the first switch；
First common end of the second switch is connected with first connecting pin, and the second common end of the second switch with
The second connection end conducting；Or the first common end of the second switch is connected with the second connection end, and described
Second common end of two switches is connected with first connecting pin.
5. antenna switching system as claimed in claim 4, which is characterized in that the control terminal of the second switch and the radio frequency
The output end of processor connects, and the second switch controls described the according to the signal that the output end of the rf processor export
First common end of two switches is connected with first connecting pin, and second common end is connected with the second connection end；
Or the first common end of the control second switch is connected with the second connection end, and second common end and described the
The conducting of one connecting pin.
6. antenna switching system as claimed in claim 2, which is characterized in that the antenna tuning device is opened including at least third
It closes, the control terminal of the third switch connects the output end of the d type flip flop, and the first connecting pin of the third switch is grounded,
The second connection end of the third switch connects the middle part of the first antenna, the end of the first antenna and one end of feed
Connection, the other end ground connection of the feed, the third switch is for adjusting the length of at least one first antenna.
7. antenna switching system as claimed in claim 2, which is characterized in that the antenna tuning device includes at least the 4th and opens
It closes, the control terminal of the 4th switch connects the output end of the d type flip flop, and the first connecting pin of the 4th switch is grounded,
The 4th switch second connection end is connected between the first antenna and feed, and the feed connects the first antenna
Middle part, for adjusting the impedance matching of the first antenna.
8. antenna switching system as described in claim 1, which is characterized in that the d type flip flop is rising edge flip-flops, described
Level jump signal is rise saltus step signal；Or
The d type flip flop is failing edge trigger, and the level jump signal is decline saltus step signal.
9. antenna switching system as described in claim 1, which is characterized in that the input terminal and sensor of the baseband processor
Connection, the baseband processor are used for the data output control signal detected according to the sensor.
10. a kind of mobile terminal, which is characterized in that including antenna switching system as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756290.6A CN107370496B (en) | 2017-08-29 | 2017-08-29 | An antenna switching system and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756290.6A CN107370496B (en) | 2017-08-29 | 2017-08-29 | An antenna switching system and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107370496A CN107370496A (en) | 2017-11-21 |
| CN107370496B true CN107370496B (en) | 2019-01-22 |
Family
ID=60310961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710756290.6A Active CN107370496B (en) | 2017-08-29 | 2017-08-29 | An antenna switching system and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107370496B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340712B (en) * | 2016-08-29 | 2019-08-13 | Oppo广东移动通信有限公司 | Antenna device and mobile terminal |
| US10361674B2 (en) * | 2017-01-12 | 2019-07-23 | Infineon Technologies Ag | Radio frequency delay line |
| CN108337013A (en) * | 2018-01-23 | 2018-07-27 | 广东欧珀移动通信有限公司 | Radio frequency circuit, electronic device and method for improving antenna radiation performance |
| CN109714064B (en) * | 2018-12-27 | 2021-01-08 | 维沃移动通信有限公司 | Radio frequency transmission channel control method and user terminal |
| CN111049537B (en) * | 2019-12-26 | 2022-04-29 | 北京中科晶上科技股份有限公司 | Satellite communication terminal antenna impedance matching method and device |
| CN111355500B (en) * | 2020-02-13 | 2021-11-23 | 芯朴科技(上海)有限公司 | Method for adjusting output power |
| CN118337226A (en) * | 2024-06-06 | 2024-07-12 | 深圳市积加创新技术有限公司 | WLAN double-antenna switching circuit, switching method and WLAN equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7539466B2 (en) * | 2004-12-14 | 2009-05-26 | Motorola, Inc. | Amplifier with varying supply voltage and input attenuation based upon supply voltage |
| CN101641929A (en) * | 2007-01-26 | 2010-02-03 | 新加坡科技研究局 | A radio frequency indentification transceiver |
| US9930725B2 (en) * | 2014-12-16 | 2018-03-27 | Apple Inc. | Wireless electronic device with multiradio controller integrated circuit |
-
2017
- 2017-08-29 CN CN201710756290.6A patent/CN107370496B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107370496A (en) | 2017-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107370496B (en) | An antenna switching system and mobile terminal | |
| US9553637B2 (en) | Near field communications (NFC) and proximity sensor for portable devices | |
| US10381721B2 (en) | Handheld device | |
| KR20210054262A (en) | An antenna structure and an electronic device including the same | |
| CN109088151A (en) | antenna system and mobile terminal | |
| CN102710275A (en) | Method for intelligently switching on/off mobile terminal antenna and corresponding mobile terminal | |
| US10290940B2 (en) | Broadband switchable antenna | |
| US20200313701A1 (en) | Radio frequency circuit and mobile terminal | |
| CN108055410A (en) | Antenna switching circuit, antenna switching method and electronic device | |
| US9865920B1 (en) | Antenna isolation in a multi-band antenna system | |
| KR20160057142A (en) | Electronic device | |
| TW201528607A (en) | Wireless communication device and method of adjusting antenna matching | |
| US9325062B2 (en) | High speed tunable matching network for antenna systems | |
| CN109039348A (en) | Method of controlling antenna and ACU antenna control unit | |
| US10170837B2 (en) | Segmented antenna | |
| WO2018068344A1 (en) | Antenna apparatus and mobile terminal | |
| JP6585125B2 (en) | Near field communication (NFC) and proximity sensors for portable devices | |
| US9098789B2 (en) | RFID communication circuit for an electronic device and corresponding methods | |
| CN111082833B (en) | Radio frequency front-end circuit and terminal | |
| CN104868250B (en) | A kind of control method, equipment and electronic equipment | |
| KR20130113240A (en) | Apparatus and method for matching impedence | |
| JP6178379B2 (en) | Near field communication (NFC) and proximity sensors for portable devices | |
| CN111082205B (en) | Antenna and electronic device | |
| KR102143849B1 (en) | Terminal | |
| US9425831B1 (en) | Electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |