CN107171673A - Radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment - Google Patents
Radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment Download PDFInfo
- Publication number
- CN107171673A CN107171673A CN201710327339.6A CN201710327339A CN107171673A CN 107171673 A CN107171673 A CN 107171673A CN 201710327339 A CN201710327339 A CN 201710327339A CN 107171673 A CN107171673 A CN 107171673A
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- Prior art keywords
- switch
- frequency
- signal
- frequency divider
- output end
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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
- H04B1/0053—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 with common antenna for more than one band
- H04B1/006—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 with common antenna for more than one band using switches for selecting the desired band
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/002—Switching arrangements with several input- or output terminals
- H03K17/007—Switching arrangements with several input- or output terminals with several outputs only
-
- 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
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
The embodiment of the present invention provides a kind of radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment, in the radio frequency switching circuit chip, when first switch, second switch connect the first frequency divider, the first frequency divider will receive signal frequency split into high-frequency signal, intermediate-freuqncy signal；When first switch, the 3rd the second frequency divider of switch connection, the second frequency divider will receive signal frequency split into high-frequency signal, low frequency signal；When second switch, the 3rd the second frequency divider of switch connection, the second frequency divider will receive signal frequency split into intermediate-freuqncy signal, low frequency signal；When first switch, second switch the first frequency divider of connection, and the 3rd switch, the first frequency divider connect the second frequency divider, the first frequency divider and the second frequency divider will receive signal frequency split into high-frequency signal, intermediate-freuqncy signal and low frequency signal.In the program, radio frequency switching circuit chip can dock the collection of letters number and be divided, so as to improve the electronic equipment docking collection of letters number diversity divided.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of radio frequency switching circuit chip, radio circuit, antenna assembly
And electronic equipment.
Background technology
In order to tackle the demand of the 4th third-generation mobile communication technology, 3GPP (The 3rd Generation Partnership
Project) tissue starts follow-up evolution items LTE-Advanced (LTE-A).
From LTE (Long Term Evolution) into the evolution process of lte-a system, the demand of more wide spectrum will be into
One of most important factor to influence evolution.Therefore, 3GPP tissues, which are proposed, uses carrier aggregation
(CarrierAggregatior, CA) technology solves demand of the lte-a system to the resource of frequency range.CA technologies can be carried multiple
Ripple aggregates into a broader frequency spectrum, while some discontinuous frequency spectrum fragments can also be aggregated to together, to increase system
Transmission bandwidth.It meets LTE, the requirement of lte-a system spectral compatibility, can maximally utilise existing LTE equipment and
Frequency spectrum resource.
At present, the frequency resource of each global Communications Market is different.The common carrier of different zones possesses difference
Communication spectrum distribution, therefore also there is the frequency range requirements of combination of different carrier aggregations.Accordingly, when terminal is in carrier wave
Polymerization state is, it is necessary to divide operation be carried out to radiofrequency signal, to obtain spy when receiving the radiofrequency signal of different frequency range combination
Determine the radiofrequency signal of frequency range.However, current frequency dividing mode is single, lack of diversity, it is impossible to meet the demand.
The content of the invention
The embodiment of the present invention provides a kind of radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment, can be with
Improve the electronic equipment docking collection of letters number diversity divided.
A kind of radio frequency switching circuit chip of offer of the embodiment of the present invention, including first switch, second switch and the 3rd switch,
First frequency divider and the second frequency divider；
When the first switch, the second switch connect first frequency divider, first frequency divider will be received
Signal frequency split is into high-frequency signal, intermediate-freuqncy signal；
When the second frequency divider described in the first switch, the 3rd switch connection, second frequency divider will be received
Signal frequency split is into high-frequency signal, low frequency signal；
When the second frequency divider described in the second switch, the 3rd switch connection, second frequency divider will be received
Signal frequency split is into intermediate-freuqncy signal, low frequency signal；
When the first switch, the second switch connect first frequency divider, and the 3rd switch, described first
When frequency divider connects second frequency divider, signal frequency split will be received into high-frequency signal, intermediate-freuqncy signal and low frequency signal.
The embodiment of the present invention also provides a kind of radio circuit, including radio frequency receiver, radio frequency switching circuit chip and day
Line, the radio frequency receiver, radio frequency switching circuit chip and antenna are sequentially connected；
The radio frequency switching circuit chip includes：First switch, second switch and the 3rd switch, the first frequency divider and second
Frequency divider；
When the first switch, the second switch connect first frequency divider, first frequency divider will be received
Signal frequency split is into high-frequency signal, intermediate-freuqncy signal；
When the second frequency divider described in the first switch, the 3rd switch connection, second frequency divider will be received
Signal frequency split is into high-frequency signal, low frequency signal；
When the second frequency divider described in the second switch, the 3rd switch connection, second frequency divider will be received
Signal frequency split is into intermediate-freuqncy signal, low frequency signal；
When the first switch, the second switch connect first frequency divider, and the 3rd switch, described first
When frequency divider connects second frequency divider, first frequency divider and second frequency divider will receive signal frequency split into high frequency
Signal, intermediate-freuqncy signal and low frequency signal.
The embodiment of the present invention also provides a kind of antenna assembly, including above-mentioned radio circuit.
The embodiment of the present invention also provides a kind of electronic equipment, it is characterised in that including housing and circuit board, the circuit board
Installed in the enclosure interior, radio circuit is provided with the circuit board, the radio circuit is above-mentioned radio circuit.
Radio frequency switching circuit chip provided in an embodiment of the present invention, radio circuit, antenna assembly and electronic equipment, can be controlled
The reception signal that fixture has multiple frequency range signal is divided, and docks what the collection of letters number was divided so as to improve electronic equipment
Diversity.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the decomposing schematic representation of electronic equipment provided in an embodiment of the present invention.
Fig. 2 is the structural representation of electronic equipment provided in an embodiment of the present invention.
Fig. 3 is the first structural representation of radio circuit provided in an embodiment of the present invention.
Fig. 4 is second of structural representation of radio circuit provided in an embodiment of the present invention.
Fig. 5 is the third structural representation of radio circuit provided in an embodiment of the present invention.
Fig. 6 is the first structural representation of radio frequency switching circuit chip provided in an embodiment of the present invention.
Fig. 7 is second of structural representation of radio frequency switching circuit chip provided in an embodiment of the present invention.
Fig. 8 is the third structural representation of radio frequency switching circuit chip provided in an embodiment of the present invention.
Fig. 9 is the 4th kind of structural representation of radio frequency switching circuit chip provided in an embodiment of the present invention.
Figure 10 is the 5th kind of structural representation of radio frequency switching circuit chip provided in an embodiment of the present invention.
Figure 11 is the 4th kind of structural representation of radio circuit provided in an embodiment of the present invention.
Figure 12 is another structural representation of electronic equipment provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of meaning must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, " first " is defined, one or more feature can be expressed or be implicitly included to the feature of " second ".
In description of the invention, " multiple " are meant that two or more, unless otherwise specifically defined.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not direct contact but by it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and
And purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between discussed various embodiments itself are not indicated and/or are set
Relation.In addition, the invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
The embodiment of the present invention provides a kind of electronic equipment.The electronic equipment can be the equipment such as smart mobile phone, tablet personal computer.
With reference to Fig. 1 and Fig. 2, electronic equipment 100 includes cover plate 101, display screen 102, circuit board 103, battery 104 and housing 105.
Wherein, cover plate 101 is installed on display screen 102, to cover display screen 102.Cover plate 101 can be transparent glass cover
Plate.In certain embodiments, cover plate 101 can be the glass cover-plate being made of materials such as sapphires.
Display screen 102 is arranged on housing 105, to form the display surface of electronic equipment 100.Display screen 102 can include
Viewing area 102A and non-display area 102B.Viewing area 102A is used for the information such as display image, text.Non-display area
102B not display informations.Non-display area 102B bottom can set the functional units such as fingerprint module, touch-control circuit.
Circuit board 103 is arranged on inside housing 105.Circuit board 103 can be the mainboard of electronic equipment 100.Circuit board 103
On can be integrated with the functional units such as camera, proximity transducer and processor.Meanwhile, display screen 102 can be electrically connected to
Circuit board 103.
In certain embodiments, radio frequency (RF, Radio Frequency) circuit is provided with circuit board 103.Radio circuit
Wireless network and the network equipment (for example, server, base station etc.) or other electronic equipments (for example, smart mobile phone etc.) can be passed through
Communication, is received with the information completed and between the network equipment or other electronic equipments.
In certain embodiments, as shown in figure 3, radio circuit 200 includes radio frequency receiver 21, radio frequency switching circuit chip
22 and antenna 23.Wherein, radio frequency receiver 21, radio frequency switching circuit chip 22 and antenna 23 are sequentially connected.
Radio frequency receiver 21 has receiving terminal RX.Receiving terminal RX is used to receive signal (downstream signal).Radio frequency switching circuit
Chip 22 is used for the communications band being selectively turned between radio frequency receiver 21 and antenna 23.Radio frequency switching circuit chip 22 it is detailed
Fine texture and function will hereinafter be described.
Antenna 23 is used to receive signal from the external world, and the reception signal received is sent into radio frequency receiver 21.Wherein,
When the reception signal that antenna 23 is received is carrier aggregation signal, the carrier aggregation signal is first through 22 points of radio frequency switching circuit chip
Frequency is processed into after high-frequency signal, intermediate-freuqncy signal and low frequency signal, then is received by radio frequency receiver 21.
In certain embodiments, as shown in figure 4, radio circuit 200 also includes control circuit 24.Wherein, circuit 24 is controlled
It is connected with radio frequency switching circuit chip 22.Control circuit 24 can also be connected with the processor in electronic equipment 100, with according to place
Manage the state of the instruction control radio frequency switching circuit chip 22 of device.
In certain embodiments, as shown in figure 5, radio frequency receiver 21 include high frequency port 21H, intermediate frequency port 21M and
Low frequency port 21L.Wherein, high frequency port 21H, intermediate frequency port 21M, low frequency port 21L can include multiple radio frequency receptions respectively
End.High frequency port 21H is used to receive high-frequency signal, and intermediate frequency port 21M is used for receiving intermediate frequency signal, and low frequency port 21L is used to connect
Receive low frequency signal.
It should be noted that above-mentioned high-frequency signal, intermediate-freuqncy signal, low frequency signal are relative concept, absolute frequency is had no
Rate scope is distinguished.
For example, radio frequency receiver 21 includes 9 radio frequency reception ends a1, a2, a3, a4, a5, a6, a7, a8, a9.
Wherein, a1, a2, a3 be high-frequency reception end, for receive high frequency radio signals (for example, band7, band40,
The radiofrequency signal of the frequency ranges such as band41).A4, a5, a6 be medium frequency reception end, for receive intermediate frequency radiofrequency signal (for example, band1,
The radiofrequency signal of the frequency ranges such as band2, band3).A7, a8, a9 be low frequency reception end, for receive low frequency radio frequency signal (for example,
The radiofrequency signal of the frequency ranges such as band8, band12, band20).
It should be noted that above-described embodiment is only with high frequency port 21H, intermediate frequency port 21M, the low frequency of radio frequency receiver 21
Port 21L includes illustrating exemplified by 3 radio frequency reception ends respectively.In some other embodiment, high frequency port 21H, intermediate frequency
Port 21M, low frequency port 21L can also include the radio frequency reception end of other quantity respectively.Only need to meet high frequency port 21H, in
The quantity at the respective included radio frequency reception end of frequency port 21M, low frequency port 21L is identical and more than 1.
Accordingly, radio frequency switching circuit chip 22 includes 9 sub- output end c1, c2, c3, c4, c5, c6, c7, c8, c9.Its
In, sub- output end c1, c2, c3, c4, c5, c6, c7, c8, c9 respectively with the a1 of radio frequency receiver 21, a2, a3, a4, a5, a6,
A7, a8, a9 connect one to one.
With reference to Fig. 6, in certain embodiments, radio frequency switching circuit chip 22 include first switch 221, second switch 222,
3rd switch 223 and frequency divider 224.
Wherein, first switch 221, the switch of second switch the 222, the 3rd 223 are single pole multiple throw.For example, first opens
Closing 221 includes 3 sub- output end c1, c2, c3, and second switch 222 includes 3 sub- output end c4, c5, c6, and the 3rd switch 223 is wrapped
Include 3 sub- output end c7, c8, c9.First switch 221, the input of the switch of second switch the 222, the 3rd 223 are all connected to frequency dividing
The output end of device 224.Wherein, frequency divider 224 can be three frequency dividers.The input of frequency divider 224 is connected to antenna 23.
It should be noted that above-mentioned annexation only represents being directly connected between component, do not represent and interconnect
Component between be in electrical on-state.
In certain embodiments, sub- output end c1, c2, c3 can connect with the high frequency port in radio frequency receiver 21 respectively
Connect, sub- output end c4, c5, c6 can be connected with the intermediate frequency port in radio frequency receiver 21 respectively, and sub- output end c7, c8, c9 can
To be connected respectively with the low frequency port in radio frequency receiver 21.
When first switch 221 connect in c1, c2, c3 it is any all the way, second switch 222 is connected any in c4, c5, c6
All the way, when the 3rd switch 223 disconnects, frequency divider 224 can will receive signal frequency split into high-frequency signal and intermediate-freuqncy signal.
When first switch 221 connect in c1, c2, c3 it is any second switch 222 disconnects all the way, the 3rd switch 223 is connected
In c7, c8, c9 it is any all the way when, frequency divider 224 can will receive signal frequency split into high-frequency signal and low frequency signal.
When first switch 221 disconnects, second switch 222 connect in c4, c5, c6 it is any all the way, the 3rd switch 223 is connected
In c7, c8, c9 it is any all the way when, frequency divider 224 can will receive signal frequency split into intermediate-freuqncy signal and low frequency signal.
When first switch 221 connect in c1, c2, c3 it is any all the way, second switch 222 is connected any in c4, c5, c6
All the way, the 3rd switch 223 connect in c7, c8, c9 it is any all the way when, frequency divider 224 can will receive signal frequency split into high frequency
Signal, intermediate-freuqncy signal and low frequency signal.
With reference to Fig. 7, in certain embodiments, radio frequency switching circuit chip 22 include first switch 221, second switch 222,
3rd switch 223, the frequency divider 224 of switch module 226 and first, the second frequency divider 225.
Wherein, first switch 221, the switch of second switch the 222, the 3rd 223 are single pole multiple throw.For example, first opens
Closing 221 includes 3 sub- output end c1, c2, c3, and second switch 222 includes 3 sub- output end c4, c5, c6, and the 3rd switch 223 is wrapped
Include 3 sub- output end c7, c8, c9.First switch 221, the input of second switch 222 are connected to switch module 226.3rd opens
The input of pass 223 is connected to the first output end of the second frequency divider 225.Switch module 226 has 3 output ends P1, P2, P3
And 3 inputs Q3, Q2, Q3.Wherein, the first output end P1 is connected with the input of first switch 221.Second output end P2
It is connected with the input of second switch 222.3rd output end P3 is connected with the input of the first frequency divider 224.First input end
Q1 is connected with the first output end of frequency divider 224.Second input Q2 is connected with the second output end of the first frequency divider 224.The
Three input Q3 are connected with the second output end of the second frequency divider 225.
Wherein, the first frequency divider 224, the second frequency divider 225 are all two-divider.The output end of second frequency divider 225 connects
It is connected to antenna 23.
In certain embodiments, switch module 226 includes switch K1, K2, K3.Wherein, switch K1, K2 opens for single-pole double throw
Close, K3 is single-pole single-throw switch (SPST).
Switch K1 fixing end is connected to the first output end P1.Switch K1 gating end is respectively connecting to first input end
Q1, the 3rd input Q3.Switch K1 can be selectively turned on the first output end P1 and first input end Q1 or the 3rd input Q3.
Switch K2 fixing end is connected to the second output end P2.Switch K2 gating end is respectively connecting to the second input
Q2, the 3rd input Q3.Switch K2 can be selectively turned on the second output end P2 and the second input Q2 or the 3rd input Q3.
Switch K3 two ends are respectively connecting to the 3rd output end P3 and the 3rd input Q3.Switch K3 can be switched on or switched off
3rd output end P3 and the 3rd input Q3.
In certain embodiments, sub- output end c1, c2, c3 can connect with the high frequency port in radio frequency receiver 21 respectively
Connect, sub- output end c4, c5, c6 can be connected with the intermediate frequency port in radio frequency receiver 21 respectively, and sub- output end c7, c8, c9 can
To be connected respectively with the low frequency port in radio frequency receiver 21.
When first switch 221 connect in c1, c2, c3 it is any all the way, switch K1 connects P1 and Q1, and second switch 222 connects
In logical c4, c5, c6 it is any all the way, when switch K2 connects P2 and Q2, frequency divider 224 can will receive signal frequency split to be believed into high frequency
Number and intermediate-freuqncy signal.
Further, when switch K3 connects P3 and Q3, the 3rd switch 223 connect in c7, c8, c9 it is any all the way when, point
Frequency device 225 can will receive signal frequency split into high-frequency signal, intermediate-freuqncy signal, low frequency signal.
When first switch 221 connect in c1, c2, c3 it is any switch K1 connects P1 and Q3 all the way, second switch 222 breaks
Open, the 3rd switch 223 connect in c7, c8, c9 it is any all the way when, frequency divider 225 can will receive signal frequency split to be believed into high frequency
Number and low frequency signal.
When first switch 221 disconnects, second switch 222 connect in c4, c5, c6 it is any all the way, switch K2 connect P2 with
Q3, the 3rd switch 223 connect in c7, c8, c9 it is any all the way when, frequency divider 225 can will receive signal frequency split to be believed into intermediate frequency
Number and low frequency signal.
With reference to Fig. 8, in certain embodiments, radio frequency switching circuit chip 22 include first switch 221, second switch 222,
3rd switch 223, the frequency divider 224 of switch module 226 and first, the second frequency divider 225.
Wherein, first switch 221, the switch of second switch the 222, the 3rd 223 are single pole multiple throw.For example, first opens
Closing 221 includes 3 sub- output end c1, c2, c3, and second switch 222 includes 3 sub- output end c4, c5, c6, and the 3rd switch 223 is wrapped
Include 3 sub- output end c7, c8, c9.First switch 221, the input of second switch 222 are connected to switch module 226.3rd opens
The input of pass 223 is connected to the first output end of the second frequency divider 225.
In certain embodiments, first switch 221, the switch of second switch 222 and the 3rd 223 can encapsulate formation first
Chip 2201.
Switch module 226 has 3 output ends P1, P2, P3 and 3 inputs Q1, Q2, Q3.Wherein, the first output end
P1 is connected with the input of first switch 221.Second output end P2 is connected with the input of second switch 222.3rd output end
P3 is connected with the input of the first frequency divider 224.First input end Q1 is connected with the first output end of frequency divider 224.Second is defeated
Enter to hold Q2 to be connected with the second input of frequency divider 224.Second input of the 3rd input Q3 and the second frequency divider 225 connects
Connect.
Wherein, the first frequency divider 224, the second frequency divider 225 are all double frequency frequency divider.The input of second frequency divider 225
It is connected to antenna 23.
In certain embodiments, switch module 226 includes switch K1, K2, K3.Wherein, switch K1, K2 opens for single-pole single-throw(SPST
Close, K3 is SP3T switch.
Switch K1 two ends are respectively connecting to the first output end P1 and first input end Q1.Switch K1 can be switched on or switched off
First output end P1 and first input end Q1.
Switch K2 two ends are respectively connecting to the second output end P2 and the second input Q2.Switch K2 can be switched on or switched off
Second output end P2 and the second input Q2.
Switch K3 fixing end is connected to the 3rd input Q3.Switch K3 three gating ends are respectively connecting to the first output
Hold P1, the second output end P2, the 3rd output end P3.Switch K3 can be selectively turned on the first output end P1, the second output end P2
Or the 3rd output end P3 and the 3rd input Q3.
In certain embodiments, sub- input c1, c2, c3 can connect with the high frequency port in radio frequency receiver 21 respectively
Connect, sub- input c4, c5, c6 can be connected with the intermediate frequency port in radio frequency receiver 21 respectively, and sub- input c7, c8, c9 can
To be connected respectively with the low frequency port in radio frequency receiver 21.
When first switch 221 connect in c1, c2, c3 it is any all the way, switch K1 connects P1 and Q1, and second switch 222 connects
In logical c4, c5, c6 it is any all the way, when switch K2 connects P2 and Q2, frequency divider 224 can will receive signal frequency split to be believed into high frequency
Number and intermediate-freuqncy signal.
Further, when switch K3 connects P3 and Q3, the 3rd switch 223 connect in c7, c8, c9 it is any all the way when, point
Frequency device 225 can will receive signal frequency split into high-frequency signal, intermediate-freuqncy signal, low frequency signal.
When first switch 221 connect in c1, c2, c3 it is any switch K3 connects P1 and Q3 all the way, second switch 222 breaks
Open, the 3rd switch 223 connect in c7, c8, c9 it is any all the way when, frequency divider 225 can will receive signal frequency split to be believed into high frequency
Number and low frequency signal.
When first switch 221 disconnects, second switch 222 connect in c4, c5, c6 it is any all the way, switch K3 connect P2 with
Q3, the 3rd switch 223 connect in c7, c8, c9 it is any all the way when, frequency divider 225 will receive signal frequency split into intermediate-freuqncy signal with
Low frequency signal.
For example, sub- output end c1 can be connected with the high-frequency band band40 receiving terminals in radio frequency receiver 21, sub- output
End c4 can be connected with the intermediate-frequency band band3 receiving terminals in radio frequency receiver 21, and sub- output end c7 can be with radio frequency receiver
Low frequency band band12 receiving terminals connection in 21.
When first switch 221 connect c1, switch K1 connect P1 and Q1, second switch 222 connect c4, switch K2 connect P2 with
During Q2, frequency divider 224 can will receive signal frequency split into band40 frequency band signals and band3 frequency band signals.
Further, when switch K3 connects P3 and Q3, and the 3rd switch 223 connects c7, frequency divider 225 can be believed receiving
Number divide into band40 frequency band signals, band3 frequency band signals and band12 frequency band signals.
When first switch 221 connects c1, switch K1 connects P1 and Q3, and second switch 222 disconnects, and the 3rd switch 223 is connected
During c7, frequency divider 225 can will receive signal frequency split into band40 frequency band signals and band12 frequency band signals.
When first switch 221 disconnects, second switch 222 connects c4, and switch K2 connects P2 and Q3, and the 3rd switch 223 is connected
C7, frequency divider 225 can will receive signal frequency split into band3 frequency band signals and band12 frequency band signals.
With reference to Fig. 9, in certain embodiments, radio frequency switching circuit chip 22 include first switch 221, second switch 222,
3rd switch 223, the frequency divider 224 of switch module 226 and first, the second frequency divider 225.
Wherein, first switch 221, the switch of second switch the 222, the 3rd 223 are single pole multiple throw.For example, first opens
Closing 221 includes 3 sub- input c1, c2, c3, and second switch 222 includes 3 sub- input c4, c5, c6, and the 3rd switch 223 is wrapped
Include 3 sub- input c7, c8, c9.First switch 221, the input of second switch 222 are connected to switch module 226.3rd opens
The input of pass 223 is connected to the first input end of the second frequency divider 225.
Switch module 226 has 3 output ends P1, P2, P3 and 3 inputs Q1, Q2, Q3.Wherein, the first output end
P1 is connected with the input of first switch 221.Second output end P2 is connected with the input of second switch 222.3rd output end
P3 is connected with the input of the first frequency divider 224.First input end Q1 is connected with the first output end of frequency divider 224.Second is defeated
Enter to hold Q2 to be connected with the second output end of frequency divider 224.Second output end of the 3rd input Q3 and the second frequency divider 225 connects
Connect.
Wherein, the first frequency divider 224, the second frequency divider 225 are all two-divider.The input of second frequency divider 225 connects
It is connected to antenna 23.
In certain embodiments, first switch 221, the switch of second switch the 222, the 3rd 223 and switch module 226 can be with
Encapsulation forms the second chip 2202.
In certain embodiments, switch module 226 includes switch K1, K2, K3, K4, K5.Wherein, switch K1, K2, K3,
K4, K5 are single-pole single-throw switch (SPST).
Switch K1 two ends are respectively connecting to the first output end P1 and first input end Q1.Switch K1 can be switched on or switched off
First output end P1 and first input end Q1.
Switch K2 two ends are respectively connecting to the second output end P2 and the second input Q2.Switch K2 can be switched on or switched off
Second output end P2 and the second input Q2.
Switch K3 two ends are respectively connecting to the second output end P2 and the 3rd input Q3.Switch K3 can be switched on or switched off
Second output end P2 and the 3rd input Q3.
Switch K4 two ends are respectively connecting to the first output end P1 and the 3rd input Q3.Switch K4 can be switched on or switched off
First output end P1 and the 3rd input Q3.
Switch K5 two ends are respectively connecting to the 3rd output end P3 and the 3rd input Q3.Switch K5 can be switched on or switched off
3rd output end P3 and the 3rd input Q3.
In certain embodiments, sub- input c1, c2, c3 can connect with the high frequency port in radio frequency receiver 21 respectively
Connect, sub- input c4, c5, c6 can be connected with the intermediate frequency port in radio frequency receiver 21 respectively, and sub- input c7, c8, c9 can
To be connected respectively with the low frequency port in radio frequency receiver 21.
When first switch 221 connect in c1, c2, c3 it is any all the way, switch K1 connects P1 and Q1, and second switch 222 connects
In logical c4, c5, c6 it is any all the way, when switch K2 connects P2 and Q2, frequency divider 224 can will receive signal frequency split to be believed into high frequency
Number and intermediate-freuqncy signal.
Further, when switch K5 connects P3 and Q3, the 3rd switch 223 connect in c7, c8, c9 it is any all the way when, point
Frequency device 225 can will receive signal frequency split into high-frequency signal, intermediate-freuqncy signal, low frequency signal.
When first switch 221 connect in c1, c2, c3 it is any switch K4 connects P1 and Q3 all the way, second switch 222 breaks
Open, the 3rd switch 223 connect in c7, c8, c9 it is any all the way when, frequency divider 225 can will receive signal frequency split to be believed into high frequency
Number and low frequency signal.
When first switch 221 disconnects, second switch 222 connect in c4, c5, c6 it is any all the way, switch K3 connect P2 with
Q3, the 3rd switch 223 connect in c7, c8, c9 it is any all the way when, frequency divider 225 can will receive signal frequency split to be believed into intermediate frequency
Number and low frequency signal.
Figure 10 is refer to, in certain embodiments, radio frequency switching circuit chip 22 also includes the first filtering unit 227, the
Two filtering units 228 and the 3rd filtering unit 229.
First filtering unit 227 is connected with the first switch 221, for being filtered to high-frequency signal；Described second
Filtering unit 229 is connected with the second switch 222, for being filtered to intermediate-freuqncy signal；3rd filtering unit 229 with
3rd switch 223 is connected, for being filtered to low frequency signal.
Wherein, multiple filters can be included in the first filtering unit 227, the second filtering unit 228 and the 3rd filtering unit 229
Ripple device, including two-in-one wave filter.By the first frequency divider 224, the second frequency divider 225 obtain high-frequency signal, intermediate-freuqncy signal and
After low frequency signal, further echo signal can be chosen from high-frequency signal, intermediate-freuqncy signal and low frequency signal using wave filter.
As an example it is assumed that by the first frequency divider 224 obtain Band1 frequency ranges, Band3 frequency ranges, Band25 intermediate frequency believe
Number, if expecting Band1 frequency band signals and Band3 frequency band signals, a permission Band1 can be connected on sub- input c4
The two-in-one wave filter that frequency band signals and Band3 frequency band signals pass through.Intermediate-freuqncy signal is inputted after the two-in-one wave filter, will be
Band25 frequency band signals are filtered, and an output end exports Band1 frequency band signals, another output end output Band3 frequency band signals.
In certain embodiments, between the first filtering unit 227 and first switch 221, the second filtering unit 228 and second
Phase shift unit can also be set between switch 222, between the 3rd filtering unit 229 and the 3rd switch 223, to believe high frequency
Number, low frequency signal, intermediate-freuqncy signal carry out waveform adjustment, then filtered by corresponding filtering unit.
In certain embodiments, first switch 221, the switch of second switch the 222, the 3rd 223, switch module 226, first are filtered
Ripple component 227, the second filtering unit 228 and the 3rd filtering unit 229 can encapsulate to form the three or two chip 2203.
Figure 11 is refer to, Figure 11 is the structural representation of radio circuit 200.Radio circuit 200 include radio frequency receiver 21,
Radio frequency switching circuit chip 22 and antenna 23.
Radio frequency receiver 21 has receiving terminal RX.Receiving terminal RX is used to receive signal (downstream signal).Radio frequency switching circuit
Chip 22 is used for the communications band being selectively turned between radio frequency receiver 21 and antenna 23.
Radio frequency switching circuit chip 22 includes first switch 221, the switch of second switch the 222, the 3rd 223, switch module
226th, the first frequency divider 224, the filtering unit 227 of the second frequency divider 225 first, the second filtering unit 228 and the 3rd filtering unit
229。
First switch 221, the switch of second switch the 222, the 3rd 223 are single pole multiple throw.For example, first switch 221
Including 3 sub- output end c1, c2, c3, second switch 222 includes 3 sub- output end c4, c5, c6, and the 3rd switch 223 includes 3
Sub- output end c7, c8, c9.First switch 221, the input of second switch 222 are connected to switch module 226.3rd switch 223
Input be connected to the first output end of the second frequency divider 225.
First frequency divider 224, the second frequency divider 225 are all double frequency frequency divider.The input of second frequency divider 225 is connected to
Antenna 23.
First filtering unit 227 is connected with the first switch 221, for being filtered to high-frequency signal；Described second
Filtering unit 229 is connected with the second switch 222, for being filtered to intermediate-freuqncy signal；3rd filtering unit 229 with
3rd switch 223 is connected, for being filtered to low frequency signal.
Wherein, multiple filters can be included in the first filtering unit 227, the second filtering unit 228 and the 3rd filtering unit 229
Ripple device, including two-in-one wave filter.By the first frequency divider 224, the second frequency divider 225 obtain high-frequency signal, intermediate-freuqncy signal and
After low frequency signal, echo signal further can be chosen from high-frequency signal, intermediate-freuqncy signal and low frequency signal using wave filter, then
Echo signal is sent to radio frequency receiver 21.
With continued reference to Fig. 1 and Fig. 2.Wherein, battery 104 is arranged on inside housing 105.Battery 104 is used to be electronic equipment
100 provide electric energy.
Housing 105 is used for the exterior contour for forming electronic equipment 100.The material of housing 105 can be plastics or metal.Shell
Body 105 can be integrally formed.
With reference to Figure 12, Figure 12 is another structural representation of electronic equipment 100 provided in an embodiment of the present invention.Electronic equipment
100 include antenna assembly 10, memory 20, display unit 30, power supply 40 and processor 50.Those skilled in the art can manage
The structure of the electronic equipment 100 shown in solution, Figure 12 does not constitute the restriction to electronic equipment 100.Electronic equipment 100 can be wrapped
Include than illustrating more or less parts, either combine some parts or different parts arrangement.
Wherein, antenna assembly 10 includes the radio circuit 200 described in any of the above-described embodiment.Antenna assembly 10 can be with
Communicated, completed and net with the network equipment (for example, server) or other electronic equipments (for example, smart mobile phone) by wireless network
Information between network equipment or other electronic equipments is received.
Memory 20 can be used for storage application program and data.Include executable in the application program that memory 20 is stored
Program code.Application program can constitute various functions module.Processor 50 is stored in the application journey of memory 20 by operation
Sequence, so as to perform various function application and data processing.
Display unit 30 can be used for display the information of electronic equipment 100 is input to by user or be supplied to the information of user with
And the various graphical user interface of electronic equipment 100.These graphical user interface can by figure, text, icon, video and its
It is combined to constitute.Display unit 30 may include display panel.
The all parts that power supply 40 is used for electron equipment 100 are powered.In certain embodiments, power supply 40 can pass through electricity
Management system and processor 50 are logically contiguous, so as to realize management charging, electric discharge and power consumption pipe by power-supply management system
The functions such as reason.
Processor 50 is the control centre of electronic equipment 100.Processor 50 is entirely electric using various interfaces and connection
The various pieces of sub- equipment 100, by operation or perform and are stored in application program in memory 20, and call and be stored in
Data in reservoir 20, perform the various functions and processing data of electronic equipment 100, so as to carry out entirety to electronic equipment 100
Monitoring.
In addition, electronic equipment 100 can also include camera module, bluetooth module etc., it will not be repeated here.
Above to radio frequency switching circuit chip provided in an embodiment of the present invention, radio circuit, antenna assembly and electronic equipment
It is described in detail, specific case used herein is set forth to the principle and embodiment of the present invention, and the above is real
The explanation for applying example is only intended to help and understands the present invention.Simultaneously for those skilled in the art, according to the thought of the present invention,
It will change in specific embodiments and applications, in summary, this specification content should not be construed as to this
The limitation of invention.
Claims (16)
1. a kind of radio frequency switching circuit chip, it is characterised in that including：First switch, second switch and the 3rd switch, first point
Frequency device and the second frequency divider；
When the first switch, the second switch connect first frequency divider, first frequency divider will receive signal
Divide into high-frequency signal, intermediate-freuqncy signal；
When the second frequency divider described in the first switch, the 3rd switch connection, second frequency divider will receive signal
Divide into high-frequency signal, low frequency signal；
When the second frequency divider described in the second switch, the 3rd switch connection, second frequency divider will receive signal
Divide into intermediate-freuqncy signal, low frequency signal；
When the first switch, the second switch connect first frequency divider, and the 3rd switch, first frequency dividing
Device connect second frequency divider when, first frequency divider and the second frequency divider will receive signal frequency split into high-frequency signal, in
Frequency signal and low frequency signal.
2. radio frequency switching circuit chip according to claim 1, it is characterised in that
The first switch is connected with the output end of first frequency divider, the output end of second frequency divider；
The second switch is connected with the output end of first frequency divider, the output end of second frequency divider；
3rd switch is connected with the output end of second frequency divider；
The input of first frequency divider is connected with the output end of second frequency divider.
3. radio circuit chip according to claim 2, it is characterised in that the first switch, the second switch, institute
State the 3rd switch package the first chip of formation.
4. radio frequency switching circuit chip according to claim 1, it is characterised in that first frequency divider, the second frequency dividing
Device is two-divider.
5. the radio frequency switching circuit chip according to claim 1-4 any one, it is characterised in that the radio circuit is opened
Closing chip also includes switch module；
The switch module respectively with the first switch, the second switch, the input of first frequency divider and output
The output end connection of end and second frequency divider.
6. radio frequency switching circuit chip according to claim 5, it is characterised in that the first output of the switch module
End, the input of the second output end, the 3rd output end respectively with the first switch, second switch, the first frequency divider are connected, institute
State the first input end, the second input, the 3rd input of switch module the first output end respectively with first frequency divider,
Second output end of first frequency divider, the connection of the output end of second frequency divider.
7. radio frequency switching circuit chip according to claim 6, it is characterised in that the first output end of the switch module
It is selectively turned on the first input end or the 3rd input of the switch module, the second output end selectivity of the switch module
The second input or the 3rd input of the switch module are connected, the 3rd output end of the switch module is selectively turned on institute
State the 3rd input of switch module.
8. radio frequency switching circuit chip according to claim 7, it is characterised in that the first switch, described second open
Close, the 3rd switch, the switch module encapsulate to form the second chip.
9. radio frequency switching circuit chip according to claim 8, it is characterised in that the radio frequency switching circuit chip is also wrapped
Include：First filtering unit, the second filtering unit and the 3rd filtering unit；
First filtering unit is connected with the first switch, for being filtered to high-frequency signal；
Second filtering unit is connected with the second switch, for being filtered to intermediate-freuqncy signal；
3rd filtering unit is connected with the described 3rd switch, for being filtered to low frequency signal.
10. radio frequency switching circuit chip according to claim 9, it is characterised in that the first switch, described second open
Pass, the 3rd switch, first filtering unit, second filtering unit, the 3rd filtering unit and the switch
Component package the 3rd chip of formation.
11. a kind of radio circuit, it is characterised in that described to penetrate including radio frequency receiver, radio frequency switching circuit chip and antenna
Frequency receiver, radio frequency switching circuit chip and antenna are sequentially connected；
The radio frequency switching circuit chip includes：First switch, second switch and the 3rd switch, the first frequency divider and the second frequency dividing
Device；
When the first switch, the second switch connect first frequency divider, first frequency divider will receive signal
Divide into high-frequency signal, intermediate-freuqncy signal；
When the second frequency divider described in the first switch, the 3rd switch connection, second frequency divider will receive signal
Divide into high-frequency signal, low frequency signal；
When the second frequency divider described in the second switch, the 3rd switch connection, first frequency divider and described second
Frequency divider will receive signal frequency split into intermediate-freuqncy signal, low frequency signal；
When the first switch, the second switch connect first frequency divider, and the 3rd switch, first frequency dividing
When device connects second frequency divider, signal frequency split will be received into high-frequency signal, intermediate-freuqncy signal and low frequency signal.
12. radio circuit according to claim 11, it is characterised in that the radio frequency receiver include high frequency port, in
Frequency port and low frequency port；
The high frequency port is connected with the output end of the first switch, for receiving high-frequency signal；
The intermediate frequency port is connected with the output end of the second switch, for receiving intermediate frequency signal；
The low frequency port is connected with the output end of the described 3rd switch, for receiving low frequency signal.
13. the radio circuit according to right 12, it is characterised in that
The high frequency port includes N1The sub- receiving terminal of individual different frequency range, the output end of the first switch includes N1Height is exported
End, the N1Individual sub- receiving terminal and the N1Individual sub- output end is connected one by one；
The intermediate frequency port includes N2The sub- receiving terminal of individual different frequency range, the output end of the second switch includes N2Height is exported
End, the N2Individual sub- receiving terminal and the N2Individual sub- output end is connected one by one；
The low frequency port includes N3The sub- receiving terminal of individual different frequency range, the output end of the 3rd switch includes N3Height is exported
End, the N3Individual sub- receiving terminal and the N3Individual sub- output end is connected one by one；
Wherein, N1、N2、N3It is the natural number more than 1.
14. radio circuit according to claim 13, it is characterised in that the input of second frequency divider and the day
Line is connected.
15. a kind of antenna assembly, it is characterised in that including the radio circuit any one of claim 11 to 14.
16. a kind of electronic equipment, it is characterised in that including housing and circuit board, the circuit board is arranged on the enclosure interior,
Radio circuit is provided with the circuit board, the radio circuit is the radio frequency electrical any one of claim 11 to 14
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710327339.6A CN107171673A (en) | 2017-05-10 | 2017-05-10 | Radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710327339.6A CN107171673A (en) | 2017-05-10 | 2017-05-10 | Radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107171673A true CN107171673A (en) | 2017-09-15 |
Family
ID=59812777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710327339.6A Pending CN107171673A (en) | 2017-05-10 | 2017-05-10 | Radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment |
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| Country | Link |
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| CN (1) | CN107171673A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759943A (en) * | 2020-12-29 | 2022-07-15 | 华为技术有限公司 | Radio frequency front end module, and method and device for controlling radio frequency front end module |
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| CN201278522Y (en) * | 2008-08-07 | 2009-07-22 | 中兴通讯股份有限公司 | Radio frequency front-end circuit for mobile terminal system |
| CN105471557A (en) * | 2014-08-15 | 2016-04-06 | 深圳市中兴微电子技术有限公司 | Carrier aggregation device |
| CN104244291A (en) * | 2014-09-29 | 2014-12-24 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and antenna switching method and device thereof |
| WO2016174302A1 (en) * | 2015-04-30 | 2016-11-03 | Nokia Technologies Oy | Multiband filter for non-contiguous channel aggregation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114759943A (en) * | 2020-12-29 | 2022-07-15 | 华为技术有限公司 | Radio frequency front end module, and method and device for controlling radio frequency front end module |
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