CN104779917B - A kind of receiver front end circuit based on integrated inductor noise cancellation technology - Google Patents
A kind of receiver front end circuit based on integrated inductor noise cancellation technology Download PDFInfo
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- CN104779917B CN104779917B CN201510193750.XA CN201510193750A CN104779917B CN 104779917 B CN104779917 B CN 104779917B CN 201510193750 A CN201510193750 A CN 201510193750A CN 104779917 B CN104779917 B CN 104779917B
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Abstract
The present invention relates to a kind of receiver front end circuit based on integrated inductor noise cancellation technology, belong to radio frequency and millimetre integrated circuit design field, the circuit includes two identical branch roads, is constituted by low-noise amplifier, I roads and Q roads frequency mixer, trans-impedance amplifier；Wherein, input signal is divided into input of the two-way respectively with the low-noise amplifier of two branch roads and is connected, and the output of the low-noise amplifier of each branch road terminates the I roads of the branch road and the public input of Q roads frequency mixer；The local oscillator end of I roads frequency mixer in two branch roads is connected with the I roads local oscillator input of whole circuit respectively；The local oscillator end of Q roads frequency mixer in two branch roads is connected with the Q roads local oscillator input of whole circuit respectively；The difference output end of I roads frequency mixer is connected with the difference output end of Q roads frequency mixer in another branch road in one branch road, and is connected with the differential input end of the trans-impedance amplifier in the branch road.The present invention can greatly eliminate the thermal noise of integrated inductor generation.
Description
Technical field
The invention belongs to radio frequency and millimetre integrated circuit design field, more particularly to high-performance, low-noise factor
(Noise Figure:NF receiver front end circuit design).
Background technology
With CMOS (complementary metal-oxide-semiconductors：Complementary Metal-Oxide-
Semiconductor) the development of high speed wireless communication Circuits and Systems, and user is to the requirement such as communication quality and speed experience
Improve constantly, information exchange rates constantly increase, especially indoor high-speed communication requirement becomes increasingly to be important.According to Mason
Prediction, by 2016, the 80% of global radio amount of communication data will be by indoor generation.In this context, WLAN
(Wireless Local Area Network:WLAN) rapid technological improvement, wherein with the series standards of IEEE 802.11 most
Representativeness, current standard has evolved to the 5th generation 802.11ac, and communication data rate can reach Gbps (Giga-bit-
Per-second) and more than, thus attracted the extensive concern of academia and industrial quarters personage.
Specific to the wireless receiver systems for being operated in radio-frequency range, it is necessary to real while low cost, low-power consumption is met
Existing high-gain, low noise, to realize the loss in high frequency of receiver front end system and noise coefficient.With WLAN skill
The development of art, data transmission rate is improved constantly, and the vector planisphere (Constellation diagram) of modulation is more and more closeer
Collection, to the noise coefficient of receiver also more and more higher.In order to reduce the quantity of piece external component, reducing can be big inside cost, circuit
Amount uses integrated inductor.But integrated inductor is relatively low due to quality factor (Quality Factor), and the dead resistance contained is larger,
This will produce substantial amounts of thermal noise, have a strong impact on the noiseproof feature of receiver front end circuit.
At present, traditional inductance applied to receiver front end circuit mainly has two kinds of forms.A kind of is using outside piece
Inductance, using the characteristic of its high-quality-factor to reduce noise.Such as bibliography《Yuan-Hung Chung,etc.,“A 4-
in-1(WiFi/BT/FM/GPS)connectivity SoC with enhanced co-existence performance
in 65nm CMOS,”IEEE ISSCC Dig.Tech.Papers,pp.172,174,19-23 Feb.2012》With《Ming
He,etc.,“20.5 A 40nm dual-band 3-stream 802.11a/b/g/n/ac MIMO WLAN SoC with
1.1Gb/s over-the-air throughput,”IEEE ISSCC Dig.Tech.Papers,pp.350,351,9-13
Feb.2014》.Such way adds circuit manufacturing cost, and have impact on integrated level；Another is to use common piece
Interior integrated inductor, such as bibliography《SanghoonJoo,Tae-Young Choi,and Byunghoo Jung,“A 2.4-GHz
Resistive Feedback LNA in 0.13-μm CMOS,”IEEE J.Solid-State Circuits,vol.44,
no.11,pp.3019-3029,Nov.2009》.This scheme inevitably introduces very high thermal noise.
Accordingly, it would be desirable to invent new circuit structure, properly settle circuit design cost and noiseproof feature this to contradiction,
The integrated level and performance of receiver front end system are met simultaneously.
The content of the invention
In view of this, it is an object of the invention to propose before a kind of receiver based on integrated inductor noise cancellation technology
End, on the basis of using integrated inductor, by brand-new circuit structure, eliminates the noise of inductance contribution, it is ensured that whole to receive
The low-noise factor of machine, meets performance requirement of the wireless communication standard to receiver front end, and improve whole receiver front end system
The integrated level of system.
To realize object above, a kind of receiver front end circuit based on integrated inductor noise cancellation technology of the present invention, its
It is characterised by, the circuit includes two identical branch roads, tie point is mixed by the first low-noise amplifier, the first I roads and Q roads
Device, the first trans-impedance amplifier composition, second the second low-noise amplifier of route, the 2nd I roads and Q roads frequency mixer, second are across resistance
Amplifier composition composition；Wherein, input signal be divided into two-way respectively with the low-noise amplifier of tie point and the second branch road
The input of low-noise amplifier is connected, and the I roads and Q roads of the output termination tie point of the low-noise amplifier of tie point are mixed
The public input of frequency device；The I roads of output the second branch road of termination of the low-noise amplifier of second branch road and the public affairs of Q roads frequency mixer
Common input；The local oscillator end of tie point I roads frequency mixer and the local oscillator end of the second branch road I roads frequency mixer respectively with whole circuit
I roads local oscillator input is connected；The Q roads of the local oscillator end of Q roads frequency mixer in tie point and the second branch road respectively with whole circuit
Local oscillator input is connected；In tie point in the difference output end and the second branch road of I roads frequency mixer Q roads frequency mixer difference output
End is connected, and is connected with the differential input end of the trans-impedance amplifier in tie point；The difference of trans-impedance amplifier in tie point
Output end is the I roads difference output end of whole receiver front end；The difference output end of I roads frequency mixer and first in second branch road
The difference output end of Q roads frequency mixer is connected in road, and is connected with the differential input end of the trans-impedance amplifier in the second branch road, and second
The difference output end of trans-impedance amplifier is the Q roads difference output end of whole receiver front end in branch road.
The first low-noise amplifier in the tie point, can be by grid inductance Lg, nMOS pipes M1, inductance LsWith inductance Ld
Composition；Wherein, grid inductance LgOne termination input, another termination nMOS pipes M1Grid end, nMOS pipes M1Source electrode meets inductance Ls's
One end, inductance LsThe other end ground connection GND；M1Drain electrode connect output end and inductance LdOne end, LdAnother termination power vd D.
The second low-noise amplifier in second branch road, can be by nMOS pipes M2n, pMOS pipes M2pComposition；Wherein, nMOS
Pipe M2nWith pMOS pipes M2pGrid end be connected together and connect input, nMOS pipes M2nSource ground GND, pMOS pipe M2pSource electrode connects electricity
Source VDD, nMOS pipe M2nWith pMOS pipes M2pDrain terminal be connected together and connect output end.
The tie point is identical with frequency mixer in the second branch road, can include I roads and two, Q roads frequency mixer.This hair
Bright technical characterstic and beneficial effect：
The present invention is directed to the problem of integrated inductor thermal noise is excessive, employs new circuit structure, introduces noise cancellation
Technology, eliminate integrated inductor contribution noise, realize improved noiseproof feature, solve receiver system integrated inductor and
The contradiction that noiseproof feature can not be solved simultaneously, while realizing high integration on low noise and piece, efficiently avoid traditional design
Choice problem of the method between noise and integrated level, improves whole receiver front end systematic function and ensure that setting for circuit
Count reliability and electrostatic robustness.
Brief description of the drawings
Fig. 1 is the circuit diagram of the receiver front end proposed by the present invention based on integrated inductor noise cancellation technology；
Fig. 2 be the embodiment of the present invention in the receiver front end (I roads) based on integrated inductor noise cancellation technology work
Schematic diagram；
Fig. 3 is of the invention using input signal frequency range as 5.001GHz -5.1GHz, and frequency mixer local frequency is 5GHz,
Receiver front end circuit is the simulation result for the noise coefficient that embodiment is 1MHz-100MHz to reference frequency output.
Fig. 4 is the present invention to using frequency input signal as 5.01GHz, frequency mixer local frequency is 5GHz, receiver front end
The output frequency of circuit embodiments is 10MHz noise analysis, i.e. the noise power of grid inductance contribution accounts for 1 contributing noise of branch road
The ratio of power；
Fig. 5 is the present invention to using frequency input signal as 5.01GHz, frequency mixer local frequency is 5GHz, receiver front end
The output frequency of circuit embodiments is 10MHz noise analysis, i.e. the noise power of grid inductance contribution accounts for whole circuit noise work(
The ratio of rate.
Embodiment
To make the purpose of the present invention, technical scheme and feature more explicit, below in conjunction with the accompanying drawings to specific embodiment party
Formula is described in detail and described.
The present invention proposes a kind of receiver front end circuit based on integrated inductor noise cancellation technology, is using integrated electricity
On the basis of sense, using brand-new circuit structure, the thermal noise for being contributed integrated inductor by way of feedforward is eliminated, it is ensured that
Low-noise factor, meets performance requirement of the wireless communication standard to receiver front end, and improve whole receiver front end system
Integrated level.
To realize object above, a kind of receiver front end circuit based on integrated inductor noise cancellation technology of the invention,
Using zero-intermediate-frequency architecture, whole receiver front end circuit is divided into two identical branch roads, as shown in figure 1, including：Tie point by
Low-noise amplifier 1, I roads and Q roads frequency mixer 1, trans-impedance amplifier 1 are constituted, second route low-noise amplifier 2, I roads and Q
Road frequency mixer 2, trans-impedance amplifier 2 are constituted；
Wherein, input signal is divided into input of the two-way respectively with the low-noise amplifier 1,2 of branch road 1,2 and is connected, branch road 1
Low-noise amplifier 1 output termination leg 1 I roads and Q roads frequency mixer 1 public input；Input connects in branch road 2
The public input of I roads and Q roads frequency mixer in the input of low-noise amplifier 2, the output termination leg 2 of low-noise amplifier 2
End；The local oscillator end of I roads frequency mixer is connected with the I roads local oscillator input of whole circuit respectively in branch road 1 and branch road 2, branch road 1 and branch
The local oscillator end of Q roads frequency mixer in road 2 is connected with the Q roads local oscillator input of whole circuit respectively；I roads frequency mixer in branch road 1
Difference output end is connected with the difference output end of Q roads frequency mixer in branch road 2, and defeated with the difference of the trans-impedance amplifier 1 in branch road 1
Enter end to be connected, the difference output end of trans-impedance amplifier 1 is the I roads difference output end of whole receiver front end in branch road 1；Branch road 2
The difference output end of middle I roads frequency mixer is connected with the difference output end of Q roads frequency mixer in branch road 1, and with being put across resistance in branch road 2
The differential input end of big device 2 is connected, and the difference output end of trans-impedance amplifier 2 is the Q roads difference of whole receiver front end in branch road 2
Output end.
Low-noise amplifier 1 in above-mentioned branch road 1, its particular circuit configurations are as shown in figure 1, by grid inductance Lg, nMOS pipe
M1, inductance LsWith inductance LdComposition；Wherein, grid inductance LgOne termination input, another termination nMOS pipes M1Grid end, nMOS pipe
M1Source electrode meets inductance LsOne end, inductance LsThe other end ground connection GND；M1Drain electrode connect output end and inductance LdOne end, Ld's
Another termination power vd D.
Low-noise amplifier 2 in branch road 2, its particular circuit configurations are as shown in figure 1, by nMOS pipes M2n, pMOS pipes M2pGroup
Into；Wherein, nMOS pipes M2nWith pMOS pipes M2pGrid end be connected together and connect input, nMOS pipes M2nSource ground GND, pMOS
Pipe M2pSource electrode meets power vd D, nMOS pipe M2nWith pMOS pipes M2pDrain terminal be connected together and connect output end.
The operation principle of each part of this circuit is described as follows：
The thermal noise of integrated inductor can be equivalent to connect with an ideal inductance and noise voltage source, be exported with I roads
Exemplified by, as shown in Figure 2.The low-noise amplifier of branch road 1 is traditional source degeneracy structure, and its input is series resonant network,
Therefore, the voltage being applied between nMOS pipes grid end and source is Vgs, it is ideally 90 °；And the noise that grid inductance is produced,
Because the position of its noise source is different, the noise phase of grid end and source, is ideally -90 °.The low noise of branch road 2 is put
Big device is an independent inverter structure, and input signal does not have 90 ° of phase shift after anti-phase；For noise,
90 ° of phase shifts are not had equally.Branch road 1 and signal and noise in branch road 2 respectively reach low-noise amplifier 1 and low noise amplification
After the output end of device 2, its reverse-phase.In the ideal case, the signal of branch road 1 and the phase of noise are respectively -90 ° and 90 °；
The signal of branch road 2 and the phase of noise are 180 °.
Branch road 1 is identical with frequency mixer in branch road 2, includes I roads and two, Q roads frequency mixer, altogether using 4 identicals
Routine has frequency mixer.Signal and noise that two low-noise amplifiers 1,2 are exported are received respectively, are exported as an electrical current, such as
Shown in Fig. 2.The local oscillator input of I roads frequency mixer is that the local oscillator input of Q roads frequency mixer in I roads local oscillator, branch road 2 is Q in branch road 1
Road local oscillator.Therefore after down coversion, the signal of branch road 1 and the phase of noise are still respectively -90 ° and 90 °, and branch road 2
The phase of middle signal and noise, after mixing phase shift, is -90 °.The signal and noise of branch road 1 and branch road 2 are across resistance amplification
The input of device is added in the way of current-mode, is merged into all the way.Turned the current into by the trans-impedance amplifier shown in Fig. 1
Voltage, it is final to produce the output of I roads.It can see, signal is superimposed with homophasic fashion, and make an uproar from the relation of signal and the phase of noise
Sound cancellation in an inverted fashion.The situation and specific descriptions of Q roads output can be obtained by exporting similar mode with I roads, no
It is now Q roads frequency mixer in branch road 1 to be with point, and in branch road 2 is I roads frequency mixer.Low-noise amplifier 1 and low noise amplification
The embodiment of device 2 is identical with the situation that I roads are exported.
Trans-impedance amplifier 1 is identical with trans-impedance amplifier 2, is put in embodiment using conventional full differential across resistance
Big device is realized.
In order to verify the correctness and reality of the receiver front end proposed by the present invention based on integrated inductor noise cancellation technology
Effect property, the radio receiver front end circuit embodiments progress electricity for being operated in 5GHz radio-frequency ranges is directed to using 65nm CMOS technologies
Road simulating, verifying, its circuit theory diagrams are provided in Fig. 1, and wherein radiofrequency signal is amplified by zero intermediate frequency through low-noise amplifier
Mode is converted to base band, and the I roads local oscillator and Q roads local oscillation signal of frequency mixer are converted to difference by being provided outside piece through balun on piece
Signal, accesses frequency mixer local oscillator input, and baseband current signal is converted to voltage signal through trans-impedance amplifier, useful signal
0.1dB bandwidth is about 100MHz.Parameter is listed with index in following table in Fig. 2：
Wherein, element LsInductance value is smaller, and available wire replaces in side circuit.
The circuit of remainder such as frequency mixer, trans-impedance amplifier, are realized using the circuit structure of standard.
The present invention has carried out simulation analysis to the key index noise coefficient of receiver front-end circuit, and its result becomes with frequency
The curve of change in Fig. 3, Fig. 4 and Fig. 5 respectively at providing.Solid circles represent the noise coefficient of independent branch road 1 with frequency in Fig. 3
Relation, triangles represent the noise coefficient of independent branch road 2 with the relation of frequency, and closed square represents two branch roads while when working
Overall noise figure with frequency relation.Dash area in Fig. 4 is represented individually to be carried out after noise coefficient analysis to branch road 1,
Output frequency is 10MHz frequencies, and the noise power that grid inductance is contributed accounts for the ratio of the noise power of branch road 1.Shadow part in Fig. 5
Divide to represent and two-way branch circuit parallel connection is carried out after overall noise figure analysis, be 10MHz frequencies in output frequency, grid inductance is contributed
Noise power account for the ratios of all noise powers.
From the results of view, the embodiment of the receiver front end proposed by the present invention based on integrated inductor noise cancellation technology is real
Show when being operated in 5GHz frequencies, minimum 1.53dB noise coefficient, when being worked independently compared to branch road 1, noise coefficient is improved
1dB or so, and by using noise cancellation technology proposed by the present invention, in the present embodiment, the noise of grid inductance is to whole
The contribution of circuit noise is reduced to 31% by 68%.The embodiment is relative to conventional art, by introducing branch road 2, in contribution
While signal gain, the thermal noise of integrated grid inductance is eliminated.Before not influenceing linearity index, substantially not increasing power consumption
Put, realize good noiseproof feature.
In a word, the foregoing is only the present invention under specific CMOS technology with wireless receiver under specific 5GHz radio-frequency ranges
The checking example of front end, is not intended to limit the scope of the present invention.
Claims (4)
1. a kind of receiver front end circuit based on integrated inductor noise cancellation technology, it is characterised in that the circuit includes two
Identical branch road, tie point is made up of the first low-noise amplifier, the first I roads and Q roads frequency mixer, the first trans-impedance amplifier,
Second route the second low-noise amplifier, the 2nd I roads and Q roads frequency mixer, the second trans-impedance amplifier composition；Wherein, input letter
Number it is divided into input of the two-way respectively with the low-noise amplifier of tie point and the low-noise amplifier of the second branch road to be connected,
The I roads of the output termination tie point of the low-noise amplifier of one branch road and the public input of Q roads frequency mixer；Second branch road
The I roads of output the second branch road of termination of low-noise amplifier and the public input of Q roads frequency mixer；Tie point I roads frequency mixer
Local oscillator end and the local oscillator end of the second branch road I roads frequency mixer be connected respectively with the I roads local oscillator input of whole circuit；Tie point
It is connected respectively with the Q roads local oscillator input of whole circuit with the local oscillator end of the Q roads frequency mixer in the second branch road；I in tie point
The difference output end of road frequency mixer is connected with the difference output end of Q roads frequency mixer in the second branch road, and with tie point across
The differential input end of impedance amplifier is connected；The difference output end of trans-impedance amplifier is the I of whole receiver front end in tie point
Road difference output end；In second branch road in the difference output end and tie point of I roads frequency mixer Q roads frequency mixer difference output end
It is connected, and is connected with the differential input end of the trans-impedance amplifier in the second branch road, the difference of trans-impedance amplifier is defeated in the second branch road
Go out Q road difference output end of the end for whole receiver front end.
2. front-end circuit as claimed in claim 1, it is characterised in that the first low-noise amplifier in the tie point, by
Grid inductance Lg, nMOS pipes M1, inductance LsWith inductance LdComposition；Wherein, grid inductance LgA termination input, another termination nMOS pipe
M1Grid end, nMOS pipes M1Source electrode meets inductance LsOne end, inductance LsThe other end ground connection GND；M1Drain electrode connect output end and electricity
Feel LdOne end, LdAnother termination power vd D.
3. front-end circuit as claimed in claim 1, it is characterised in that the second low-noise amplifier in second branch road, by
NMOS pipes M2n, pMOS pipes M2pComposition；Wherein, nMOS pipes M2nWith pMOS pipes M2pGrid end be connected together and connect input, nMOS pipes
M2nSource ground GND, pMOS pipe M2pSource electrode meets power vd D, nMOS pipe M2nWith pMOS pipes M2pDrain terminal be connected together and connect output
End.
4. the front-end circuit as described in claim 1,2 or 3, it is characterised in that frequency mixer in the tie point and the second branch road
It is identical, include I roads and two, Q roads frequency mixer.
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| CN201510193750.XA CN104779917B (en) | 2015-04-22 | 2015-04-22 | A kind of receiver front end circuit based on integrated inductor noise cancellation technology |
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| CN109962716B (en) | 2017-12-26 | 2021-02-12 | 华为技术有限公司 | Signal receiving circuit, signal processing chip, communication device, and signal receiving method |
| CN109802638B (en) * | 2018-12-19 | 2023-09-15 | 北京航空航天大学青岛研究院 | Low noise amplifier based on global noise cancellation and method thereof |
| CN111384984B (en) * | 2018-12-31 | 2021-06-29 | 华为技术有限公司 | Receiver and low noise amplifier |
| CN110138351B (en) * | 2019-04-29 | 2021-07-06 | 电子科技大学 | CMOS broadband balun radio frequency receiving front-end circuit |
| CN110379378B (en) | 2019-07-29 | 2021-04-02 | 京东方科技集团股份有限公司 | Backlight driving circuit, display device and backlight driving method |
| CN116260475A (en) * | 2023-03-08 | 2023-06-13 | 杭州地芯科技有限公司 | Receiver and zero intermediate frequency transceiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866387A (en) * | 2012-10-16 | 2013-01-09 | 清华大学 | Millimeter wave frequency modulated continuous wave (FMCW) two-unit phased array distance and velocity measurement monolithic radar transceiver |
| CN103384139A (en) * | 2012-05-02 | 2013-11-06 | 中国科学院微电子研究所 | Mixer circuit with bias voltage |
| CN103490731A (en) * | 2013-10-16 | 2014-01-01 | 东南大学 | Low-noise passive frequency mixer |
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| US20040087296A1 (en) * | 2002-10-25 | 2004-05-06 | Gct Semiconductor, Inc. | Radio receiver and method for AM suppression and DC-offset removal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384139A (en) * | 2012-05-02 | 2013-11-06 | 中国科学院微电子研究所 | Mixer circuit with bias voltage |
| CN102866387A (en) * | 2012-10-16 | 2013-01-09 | 清华大学 | Millimeter wave frequency modulated continuous wave (FMCW) two-unit phased array distance and velocity measurement monolithic radar transceiver |
| CN103490731A (en) * | 2013-10-16 | 2014-01-01 | 东南大学 | Low-noise passive frequency mixer |
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