CN108809262A - A kind of restructural low power consumption and low cost supports the receiver front end of multi-frequency multi-mode - Google Patents
A kind of restructural low power consumption and low cost supports the receiver front end of multi-frequency multi-mode Download PDFInfo
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- CN108809262A CN108809262A CN201810580698.7A CN201810580698A CN108809262A CN 108809262 A CN108809262 A CN 108809262A CN 201810580698 A CN201810580698 A CN 201810580698A CN 108809262 A CN108809262 A CN 108809262A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
Abstract
The invention discloses the receiver front ends that a kind of restructural low power consumption and low cost supports multi-frequency multi-mode, including multiband low noise amplifier circuit；The multiband low noise amplifier circuit input terminal includes a primary coil and at least two secondary coils, for the radiofrequency signal of different frequency range, different secondary coils and resonant capacitance is selected to be matched, to generate resonance amplification to the radiofrequency signal of different frequency range, convert the single-ended radio frequency signal correspondence of at least three frequency ranges to differential signal, to suppression common mode noise, the transformer device structure of one primary coil and two secondary coils can be very good matching and the low-noise performance of realizing multiband input terminal.
Description
Technical field
The present invention relates to wireless communication techniques more particularly to a kind of restructural low power consumption and low cost to support multi-frequency multi-mode
Receiver front end.
Background technology
With the development of mobile communication technology, low-power consumption, supports the single chip design of multimode multi-frequency to become master at low cost
Stream.Realize that the receiver chip of the multi-frequency multi-mode of multi-standard can be divided into two classes in single chip：One kind is broadband receiver,
As shown in Figure 1, bibliography J.Kim and J.Silva-Martinez, " Low-Power, Low-Cost CMOS
Direct-Conversion Receiver Front-End for Multistandard Applications,"in IEEE
Journal of Solid-State Circuits, vol. 48, no.9, this piece 2013 of pp.2090-2103, Sept.2013.
The JSSC in year describes a kind of wideband receiver front end framework that frequency range is 1.4G-5.2G.Radio-frequency input signals is through wide
It is mutually mixed with local oscillation signal after band low-noise amplifier amplification, converts radiofrequency signal to baseband signal, then pass through tool again
There is the amplifier (TIA) for converting electrical current into voltage with filter function, current signal is converted into voltage signal and filters height
Frequency interference signal.The circuit can handle very wide band signal, but that there are circuits is not restructural, cannot meet a variety of answer simultaneously
The shortcomings that using；Simultaneously in order to ensure the performance of entire frequency band, generally require to consume more power consumptions and also overall performance index not
Such as the receiver of single frequency.
Another kind of is multilink receiver, as shown in Fig. 2, bibliography H.S.Hsu, Q.Y.Duan and
Y.T.Liao,"A low power 2.4/5.2GHz concurrent receiver using current-reused
architecture,"2016 IEEE International Symposium on Circuits and Systems
(ISCAS), Montreal, QC, 2016, proposing one kind in this ISCAS in 2016 of pp.1398-1401. can be simultaneously
The low-power consumption receiver for handling 2.4GHz and 5.2GHz signals, it may be seen that radiofrequency signal is by day from its structure diagram
Line is sent into low-noise amplifier (LNA), and signal is respectively processed by two-way respectively later.Wherein low-noise amplifier (LNA)
2.4G and 5.2G signals can be simultaneously amplified, 6 inductance are contained in LNA schematic diagrams, occupy larger area, it is same with this
When more inductance between be easy to interfere with each other coupling, increase the complexity of system design.The circuit can handle two simultaneously
The signal of frequency range；But a large amount of inductance have been used in LNA designs, waste chip area；It is not restructural, cause some modules to repeat
Configuration.
One of amplifier circuit in low noise (LNA) structural schematic diagram of the prior art is as shown in figure 3, including a primary line
S11 and secondary coil S12 is enclosed, resonance circuit, secondary coil are formed in the both ends parallel resonance capacitance C1 of secondary coil S12
The numerical value of S12 and resonant capacitance C1 determines the first resonant frequency, to determine that amplifier circuit in low noise (LNA) can receive that
The radiofrequency signal of a frequency range, resonance circuit one end connect the grid of the first common source pipe M1 of the first cascade amplifying circuit, separately
One end connects the grid of the second common source pipe M3 of the second cascade amplifying circuit, and the source electrode connection source electrode of the first common source pipe M1 is negative
One end of feedback inductance L1, the source electrode of the first total bank tube M2 of drain electrode connection of the first common source pipe M1, the drain electrode of the first total bank tube M2
Connect one end of drain load inductance L2, the source electrode connection of grid connection the power vd D, the second common source pipe M3 of the first total bank tube M2
The other end of source negative feedback inductor L1, the source electrode of the second total bank tube M4 of drain electrode connection of the second common source pipe M3, the second total bank tube
The grid of the other end of the drain electrode connection drain load inductance L2 of M4, the second total bank tube M4 connects power vd D, source negative feedback electricity
Feel the centre cap ground terminal among L1, the centre cap among drain load inductance L2 meets power vd D, drain load inductance L2
The numerical value of both ends parallel resonance capacitance C2, drain load inductance L2 and resonant capacitance C2 determine the second resonant frequency, second
Resonant frequency and the first resonance frequency matches.Such inductor degeneration common source level structure low-noise amplifier is than total grid grade amplifier
With lower noise coefficient lower limit, circuit can be made to be operated in using inductance and capacitance parallel resonance as the load of amplifier
Higher frequency, simultaneously because the direct current pressure drop specific resistance smaller being added on inductance, such topological structure are non-in supply voltage
It can still work when often low.By adjusting input terminal inductance, the matched well in some specific frequency may be implemented in capacitance.This circuit
The shortcomings that be that the radiofrequency signal of a frequency range can only be amplified.
Amplifier circuit in low noise (LNA) second structural representation of the prior art as shown in figure 4, unlike Fig. 3,
In the both ends of secondary coil S12 multiple resonant capacitance C1, C2, C3 in parallel, each resonant capacitance is connected in series with gating switch, leads to
It crosses and different resonant capacitances is selected to be combined with secondary coil S12, to form multiple resonance circuits, make amplifier circuit in low noise
(LNA) it is matched with the radiofrequency signal of multiple frequency ranges, to be suitable for the radiofrequency signal of multiband in such circuit structure principle, but
In practice for different frequency ranges, such as the signal of tri- frequency ranges of 900MHz, 1800MHz, 2400MHz is handled, is used
Then resonance in the capacitance of 900MHz is resonance at 7 times of 2400MHz capacitances to identical secondary coil, is posted since capacitance exists
It comes into force and answers, as soon as to make this bulky capacitor generate the switch that influence as small as possible just needs a very little size on circuit, this
Mean that switch conduction resistance is bigger, directly results in circuit noise penalty in this way.If circuit resonance is in 900MHz
Switch size become larger, circuit can be caused to be unable to resonance in 2.4GHz.In conclusion if using circuit structure shown in Fig. 4
The performance indicator of 3 frequency ranges cannot be met simultaneously.
Invention content
That the purpose of the present invention is to solve the receiver front ends of the prior art is not restructural, cannot achieve multi-frequency multi-mode
Problem, this application provides the receiver front ends that a kind of restructural low power consumption and low cost supports multi-frequency multi-mode.
In order to solve the above-mentioned technical problem, the application adopts the following technical scheme that：
A kind of restructural low power consumption and low cost supports the receiver front end of multi-frequency multi-mode, including multiband low noise amplification
Circuit；The multiband low noise amplifier circuit input terminal includes a primary coil and at least two secondary coils, and being used for will
The single-ended radio frequency signal correspondence of at least three frequency ranges is converted into both-end differential voltage signal.
Preferably, the multiband low noise amplifier circuit includes control unit, selecting unit, resonant element, amplification list
Member, for described control unit for sending out control signal, the selecting unit includes multi-path choice channel, for according to the control
The different selector channel of signal conduction, the resonant element include at least two secondary coils, each secondary coil and resonance electricity
Hold composition resonance circuit, the resonance circuit is used to generate resonance to special frequency channel radiofrequency signal；The amplifying unit for pair
The resonance signal of the output of the resonance circuit is amplified output.
Preferably, the resonant element further includes a primary coil, the single-ended radio frequency signal for receiving multiband, institute
Stating secondary coil has control terminal, and described control unit connects the control terminal of the secondary coil, for controlling the secondary wire
Circle.
Preferably, the resonant capacitance is composed in series capacitance selection channel with the selector channel, in different frequency range
Different resonant capacitances is gated, the both ends of the secondary coil are in parallel at least one capacitance selection channel.
Preferably, the amplifying unit includes the amplifying circuit of cascode structure, the both ends difference of the secondary coil
Connect different common source pipes, the same bank tube altogether of common source pipe connection of at least two described secondary coil the same side endpoints.
Preferably, the amplifying unit includes the amplifying circuit of cascode structure, the first common source pipe and first altogether bank tube,
Second common source pipe and the second total bank tube separately constitute the first, second cascade amplifying circuit；The two of first resonance circuit
End is separately connected the first, second common source tube grid of the first, second cascade amplifying circuit, the source of the first, second common source pipe
Pole connects the both ends of source negative feedback inductor；The bank tube drain electrode connection altogether of the first, second of first, second cascade amplifying circuit
The both ends in the capacitance selection channel that the both ends of drain load inductance, export resonance capacitance are composed in series with selector channel；The source
There is centre cap, the centre cap of the source negative feedback inductor to be grounded for pole negative feedback inductor, drain load inductance, the leakage
The centre cap of pole load connects power end.
Preferably, the amplifying unit further includes third, the 4th common source pipe, and third common source pipe and first are total to bank tube, the 4th
Common source pipe and the second total bank tube separately constitute third, the 4th cascade amplifying circuit；The both ends of second resonance circuit point
Not Lian Jie third, the third of the 4th cascade amplifying circuit, the 4th common source tube grid, third, the 4th common source pipe source electrode connect
Connect the both ends of source negative feedback inductor；First, second bank tube drain electrode connection drain electrode altogether of third, the 4th cascade amplifying circuit
The both ends in the capacitance selection channel that load inductance, export resonance capacitance are composed in series with selector channel；The source negative feedback electricity
There is centre cap, the centre cap of the source negative feedback inductor to be grounded for sense, drain load inductance, the drain load inductance
Centre cap connect power end.
Preferably, the both ends of the drain load inductance at least capacitance selection channel is in parallel all the way.
Preferably, multiple resonant frequencies that the drain load inductance and shunt capacitance are formed with respectively with first, second
The resonance frequency matches of the resonance circuit.
Preferably, the second resonance circuit has at least two resonant frequencies.
Compared with prior art, beneficial effects of the present invention are：
The receiver front end that is restructural, supporting multi-frequency multi-mode of the present invention, using a primary coil and multiple secondary wires
Circle, each secondary coil are controlled by different control signals, each secondary coil both ends multiple resonant capacitances in parallel, each resonance
Capacitance is controlled by control signal, when different coil workings, is selected different size of resonant capacitance, is made receiver front end resonance
In different frequency ranges, multi-frequency multi-mode reconstruct is realized.
Further, receiver front end that is restructural, supporting multi-frequency multi-mode of the invention, is realized by multiple coils and capacitance
Multifrequency reduces cost.
Further, multifrequency low-noise amplifier of the invention improves receiver front end using cascode structure
Gain.
Further, the transformer device structure of more secondary coils of the invention can eliminate capacitive parasitic in resonance circuit and imitate
Cope with the harmful effect that circuit generates.Higher q values can not be kept in very wide frequency range by also solving same inductance simultaneously
The problem of, enable circuit that all there is preferable performance in multiple frequency ranges.
Description of the drawings
Fig. 1 is the overall structure diagram of broadband receiver；
Fig. 2 is the overall structure diagram of multilink receiver；
Fig. 3 is the amplifier circuit in low noise structural schematic diagram of the prior art；
Fig. 4 is the multiband amplifier circuit in low noise structural schematic diagram of the prior art；
Fig. 5 is the overall structure diagram of inventive receiver；
Fig. 6 is the transformer device structure schematic diagram of inventive receiver front end；
Fig. 7 is the multiband low-noise amplifier structural schematic diagram of inventive receiver front end；
Fig. 8 is the multiband amplifier circuit in low noise structural schematic diagram of inventive receiver front end；
Fig. 9 is one structural schematic diagram of multiband amplifier circuit in low noise state of inventive receiver front end；
Figure 10 is one structural schematic diagram of multiband amplifier circuit in low noise state of inventive receiver front end.
Specific implementation mode
With reference to embodiment and compares attached drawing the present invention is described in further details.Wherein identical attached drawing
Label indicates identical component, unless stated otherwise.It is emphasized that following the description is only exemplary, without
It is to limit the scope of the invention and its apply.
The present invention receiver overall structure diagram as shown in figure 5, include multiband low-noise amplifier (LNA),
Buffer circuits, mixting circuit (Mixer), TIA circuits, ADC circuit, wherein LNA circuits are for converting single-ended radio frequency signal
For the both-end differential voltage signal of high-gain low-noise, buffer circuits are used to the differential voltage signal be converted into difference
Current signal, and be divided into two-way output, Mixer circuits be used for by 25% local oscillation signal of duty ratio and both-end differential current signal into
Row Frequency mixing processing obtains the high current signal of the linearity, and TIA circuits are used to convert current signal to voltage signal, and to electricity
Pressure signal is amplified and filters, and ADC circuit is used for configured bandwidth, filters out out of band signal and exports intermediate-freuqncy signal.
The multiband amplifier circuit in low noise of the present invention, as shown in fig. 6, including control unit 10, selecting unit 30, humorous
Shake unit 20, amplifying unit 40, and described control unit 10 includes multi-path choice for sending out control signal, the selecting unit 30
Channel, for according to the different selector channel of the control signal conduction, the resonant element 20 to include at least two secondary wires
Circle, each secondary coil form resonance circuit with resonant capacitance, and the resonance circuit is used to generate special frequency channel radiofrequency signal
Resonance；The resonance signal that the amplifying unit 40 is used for the output to the resonance circuit is amplified output.
Resonant element 20 is connect with control unit 10, selecting unit 30, amplifying unit 40, control unit 10 simultaneously with choosing
The connection of unit 30 is selected, multi-frequency band radio-frequency signal is input to resonant element 20, and the selection of 10 control selections unit 30 of control unit corresponds to
Resonant capacitance, control resonant element 20 select corresponding secondary coil, selected secondary coil and resonant capacitance to input
The radiofrequency signal of frequency range generates resonance, the amplification by amplifying unit 40 to this frequency band signals, output both-end differential voltage letter
Number.
It is illustrated in figure 7 transformer device structure figure in the resonant element 20 of the present invention, including a primary coil S1, two secondary
Control terminal Vb2 among grade coil S2, S3, the control terminal Vb1 among secondary coil S2, secondary coil S3, control terminal Vb1, Vb2
For the control signal of reception control unit 10, carried out according to control signal deciding selection secondary coil S2 or secondary coil S3 humorous
It shakes.
It is illustrated in figure 8 the multiband amplifier circuit in low noise structure chart of the present invention, including a primary coil S1,
Two secondary coils S2, S3, the one end primary coil S1 receive radiofrequency signal other end ground connection.
Resonant capacitance C2 and selecting switch SW1 is composed in series the first capacitance selection channel, resonant capacitance C3 and selecting switch
SW2 is composed in series the second capacitance selection channel, and resonant capacitance C4 and selecting switch SW3 is composed in series third capacitance selection channel,
Resonant capacitance C5 and selecting switch SW4 are composed in series the 4th capacitance selection channel, and resonant capacitance C6 connects group with selecting switch SW5
At the 5th capacitance selection channel.
Selecting unit 30 includes multiple selecting switch SW1, SW2, SW3, SW4, SW5.
Control unit 10 control selections switch SW1, SW2, SW3, SW4, SW5's is turned on or off.
Resonant element 20 includes a primary coil S1, two secondary coils S2, S3, and in parallel with secondary coil S2 the
One capacitance selection channel, second, third capacitance selection channel in parallel with secondary coil S3, the control terminal Vb1 of secondary coil S2
Connect control circuit (not shown), the control terminal Vb2 connection control circuit (not shown)s of secondary coil S3
After secondary coil S3, the second capacitance selection channel, the channel parallel connection of third capacitance selection, the first resonance circuit is formed,
One end connects the grid of the first common source pipe M1 of the first cascade amplifying circuit, and the other end connects the amplification of the second cascade
The grid of second common source pipe M3 of circuit, the source electrode of the first common source pipe M1, the second common source pipe M3 source electrode connect source negative feedback
The both ends of inductance L1, the centres source negative feedback inductor L1 exit ground connection, the drain electrode of the first common source pipe M1 connect the first common source and are total to
The source electrode of the total bank tube M2 of the first of grid amplifying circuit, drain electrode the second cascade amplifying circuit of connection of the second common source pipe M3
The source electrode of second total bank tube M4, the drain electrode of the first total bank tube M2, the drain electrode of the second total bank tube M4 connect drain load inductance L2
Both ends, drain load inductance L2, third capacitance selection channel, the 4th capacitance selection channel, the 5th capacitance selection channel are in parallel
Connection draws differential voltage signal by its both ends in parallel.
Control circuit controls a job at least two secondary coils, and controls the second capacitance selection channel, third
Capacitance selection channel can simultaneously turn on, and can also individually be connected, to the resonance frequency for making secondary coil be generated with resonant capacitance
Rate is matched with the frequency of input radio frequency signal；And the combination of at least two secondary coils and resonant capacitance, can be at least three
The radiofrequency signal of frequency range carries out resonance, realizes the matching of the radiofrequency signal to multiband, multi-mode.
Control circuit controls in third capacitance selection channel, the 4th capacitance selection channel, the 5th capacitance selection channel at least
One conducting, to the frequency phase for making the resonant frequency that drain load inductance L2 is generated with resonant capacitance be generated with resonance circuit
Match, and then realizes the low noise amplification to multi-frequency band radio-frequency signal.After the both ends of secondary coil S2 are in parallel with resonant capacitance C1, group
At the second resonance circuit, one end connects the grid of the third common source pipe M5 of third cascade amplifying circuit, other end connection
The grid of 4th common source pipe M6 of the 4th cascade amplifying circuit, the source electrode of third common source pipe M5, the source of the 4th common source pipe M6
Pole connects the both ends of source negative feedback inductor L1, and the intermediate exit of source negative feedback inductor L1 is grounded, third common source pipe M5's
The source electrode of first total bank tube M2 of drain electrode the first cascade amplifying circuit of connection, the drain electrode connection second of the 4th common source pipe M6 are total
Source is total to the source electrode of the second total bank tube M4 of grid amplifying circuit, the first drain electrode of bank tube M2, drain electrode connection of the second total bank tube M4 altogether
The both ends of drain load inductance L2, drain load inductance L2, third capacitance selection channel, the 4th capacitance selection channel, the 5th electricity
Hold selector channel to be connected in parallel, both-end differential voltage signal is drawn by its both ends in parallel.
First altogether the grid of bank tube M2, second altogether the grid of bank tube M4, drain load inductance L2 intermediate exit connect
Power end.
The common source pipe of at least two secondary coil the same sides connects the source electrode of the same bank tube altogether, reduces the number of total bank tube
Amount, reduces cost.
Because the area of inductance in integrated circuits is very big, multiple resonance circuits share the drain load inductance in amplifying circuit
L2, source negative feedback inductor L1, the volume of circuit is reduced while reducing inductance quantity, reduces cost.
Multiband amplifier circuit in low noise as shown in Figure 8, operating mode difference is as shown in Figures 9 and 10：
When circuit needs to be operated in the first frequency range, when such as 900MHz frequency ranges, it is a fixed voltage that control circuit, which controls Vb1,
Value, Vb2 ground connection, at this point, secondary coil S3, because control terminal is grounded, the grid of the first common source pipe M1 connected to it, second are total to
The grounded-grid of source capsule M3, the first common source pipe M1, the second common source pipe M3 are in cut-off state, are connect with the both ends secondary coil S2
The grid of third common source pipe M5, the grid of the 4th common source pipe M6 connect fixed voltage value, at third common source pipe M5, the 4th common source pipe M6
In conducting state, the work of the second resonance circuit, circuit resonance is in the first frequency range, correspondingly, the frequency range of amplifying circuit and second humorous
The frequency range of circuit of shaking matches, to increase output impedance, the 5th capacitance selection channel conductive, third, the 4th capacitance selection channel
It disconnects.Its operating mode is as shown in Figure 9.
When circuit needs to be operated in second, third frequency range, when such as 1800MHz, 2400MHz frequency range, control circuit controls Vb2
For a fixed voltage value, Vb1 ground connection, secondary coil S2 because control terminal is grounded, the grid of third common source pipe M5 connected to it,
The grounded-grid of 4th common source pipe M6, third common source pipe M5, the 4th common source pipe M6 are in cut-off state, with the both ends secondary coil S3
The grid of the first common source pipe M1, the grid of the second common source pipe M3 of connection connect fixed voltage value, the first common source pipe M1, the second common source
Pipe M3 is in the conduction state, this time-division following two operating modes：
The first pattern：Control circuit controls the second capacitance selection channel conductive, and third capacitance selection channel disconnects, and first
Resonance circuit is operated in the second frequency range, and correspondingly, the frequency range of amplifying circuit matches with the second frequency range, to increase output impedance,
4th capacitance selection channel conductive, third, the 5th capacitance selection channel disconnect.Its operating mode is as shown in Figure 10.
Second of pattern：Control circuit controls third capacitance selection channel conductive, and the second capacitance selection channel disconnects, and first
Resonance circuit is operated in third frequency range, and correspondingly, frequency range and the third frequency range of amplifying circuit match, to increase output impedance,
Third capacitance selection channel conductive, the four, the 5th capacitance selection channels disconnect.
Further, capacitance selection channel can have two or two or more in the conduction state simultaneously.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.For those skilled in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, several equivalent substitute or obvious modifications can also be made, and performance or use is identical, all answered
When being considered as belonging to protection scope of the present invention.
Claims (10)
1. a kind of restructural low power consumption and low cost supports the receiver front end of multi-frequency multi-mode, which is characterized in that including multiband
Low noise amplifier circuit；The multiband low noise amplifier circuit input terminal includes a primary coil and at least two secondary wires
Circle, for converting the single-ended radio frequency signal correspondence of at least three frequency ranges to both-end differential voltage signal.
2. receiver front end according to claim 1, which is characterized in that the multiband low noise amplifier circuit includes control
Unit processed, selecting unit, resonant element, amplifying unit, described control unit is for sending out control signal, the selecting unit packet
Multi-path choice channel is included, for according to the different selector channel of the control signal conduction, the resonant element to include at least two
A secondary coil, each secondary coil form resonance circuit with resonant capacitance, and the resonance circuit is used for special frequency channel radio frequency
Signal generates resonance；The resonance signal that the amplifying unit is used for the output to the resonance circuit is amplified output.
3. receiver front end according to claim 2, which is characterized in that the resonant element further includes a primary line
Circle, the single-ended radio frequency signal for receiving multiband, the secondary coil have control terminal, described time of described control unit connection
The control terminal of grade coil, for controlling the secondary coil.
4. receiver front end according to claim 3, which is characterized in that the resonant capacitance is connected with the selector channel
Capacitance selection channel is formed, for gating different resonant capacitances, the both ends of the secondary coil and at least one in different frequency range
A capacitance selection channel is in parallel.
5. receiver front end according to claim 1, which is characterized in that the amplifying unit includes cascode structure
The both ends of amplifying circuit, the secondary coil are separately connected different common source pipes, at least two same sides of secondary coil
The same bank tube altogether of common source pipe connection of point.
6. receiver front end according to claim 5, which is characterized in that the amplifying unit includes cascode structure
It is total that amplifying circuit, the first common source pipe and the first total bank tube, the second common source pipe and the second total bank tube separately constitute the first, second common source
Grid amplifying circuit；The both ends of first resonance circuit are separately connected the first, second of the first, second cascade amplifying circuit
Common source tube grid, the both ends of the source electrode connection source negative feedback inductor of the first, second common source pipe；First, second cascade is put
The first, second of big circuit altogether with selector channel connect by the both ends of bank tube drain electrode connection drain load inductance, export resonance capacitance
The both ends in the capacitance selection channel of composition；The source negative feedback inductor, drain load inductance have centre cap, the source electrode
The centre cap of negative feedback inductor is grounded, and the centre cap of the drain load inductance connects power end.
7. receiver front end according to claim 6, which is characterized in that the amplifying unit further includes third, the 4th total
Source capsule, bank tube separately constitutes third to third common source pipe, the 4th cascade is put altogether with second for bank tube, the 4th common source pipe altogether with first
Big circuit；The both ends of second resonance circuit are separately connected third, the third of the 4th cascade amplifying circuit, the 4th common source
Tube grid, third, the 4th common source pipe source electrode connection source negative feedback inductor L1 both ends；Third, the amplification of the 4th cascade
Group that the total bank tube drain electrode of the first, second of circuit connects the both ends of drain load inductance, export resonance capacitance is connected with selector channel
At capacitance selection channel both ends；The source negative feedback inductor, drain load inductance have centre cap, the source electrode negative
The centre cap of feedback inductance is grounded, and the centre cap of the load inductance connects power end.
8. the receiver front end described according to claim 6 or 7, which is characterized in that the both ends of the drain load inductance with extremely
Few capacitance selection channel all the way is in parallel.
9. receiver front end according to claim 8, which is characterized in that the drain load inductance is formed with shunt capacitance
Multiple resonant frequencies and resonance frequency matches with the first, second resonance circuit respectively.
10. receiver front end according to claim 7, which is characterized in that the second resonance circuit has at least two
Resonant frequency.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810580698.7A CN108809262B (en) | 2018-06-07 | 2018-06-07 | Reconfigurable receiver front end with low power consumption and low cost for supporting multiple frequencies and multiple modes |
| PCT/CN2019/084659 WO2019233217A1 (en) | 2018-06-07 | 2019-04-26 | Reconfigurable, low-power consumption and low-cost receiver front-end supporting multi-band and multi-mode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810580698.7A CN108809262B (en) | 2018-06-07 | 2018-06-07 | Reconfigurable receiver front end with low power consumption and low cost for supporting multiple frequencies and multiple modes |
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| CN108809262A true CN108809262A (en) | 2018-11-13 |
| CN108809262B CN108809262B (en) | 2020-09-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019233217A1 (en) * | 2018-06-07 | 2019-12-12 | 清华大学深圳研究生院 | Reconfigurable, low-power consumption and low-cost receiver front-end supporting multi-band and multi-mode |
| CN112019228A (en) * | 2019-05-30 | 2020-12-01 | 湖南格兰德芯微电子有限公司 | Multi-mode multi-frequency transceiver circuit |
| CN112671350A (en) * | 2020-12-28 | 2021-04-16 | 北京力通通信有限公司 | Low-noise large-bandwidth amplifier |
| CN112865713A (en) * | 2021-01-22 | 2021-05-28 | 成都市凌巨通科技有限公司 | Multi-frequency band signal amplifier |
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| WO2019233217A1 (en) * | 2018-06-07 | 2019-12-12 | 清华大学深圳研究生院 | Reconfigurable, low-power consumption and low-cost receiver front-end supporting multi-band and multi-mode |
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| CN112019228B (en) * | 2019-05-30 | 2021-11-23 | 格兰康希通信科技(上海)有限公司 | Multi-mode multi-frequency transceiver circuit |
| CN112671350A (en) * | 2020-12-28 | 2021-04-16 | 北京力通通信有限公司 | Low-noise large-bandwidth amplifier |
| CN112671350B (en) * | 2020-12-28 | 2022-01-04 | 北京力通通信有限公司 | Low-noise large-bandwidth amplifier |
| CN112865713A (en) * | 2021-01-22 | 2021-05-28 | 成都市凌巨通科技有限公司 | Multi-frequency band signal amplifier |
| CN112865713B (en) * | 2021-01-22 | 2022-06-07 | 成都市凌巨通科技有限公司 | Multi-frequency band signal amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019233217A1 (en) | 2019-12-12 |
| CN108809262B (en) | 2020-09-22 |
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