CN110113013A - A kind of high octave ultra wide band input matching circuit for low-noise amplifier - Google Patents

A kind of high octave ultra wide band input matching circuit for low-noise amplifier Download PDF

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CN110113013A
CN110113013A CN201910564675.1A CN201910564675A CN110113013A CN 110113013 A CN110113013 A CN 110113013A CN 201910564675 A CN201910564675 A CN 201910564675A CN 110113013 A CN110113013 A CN 110113013A
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transistor
wide band
input matching
ultra wide
low
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CN110113013B (en
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杨格亮
曲明
陈明辉
廖春连
王旭东
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CETC 54 Research Institute
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    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/26Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/42Modifications of amplifiers to extend the bandwidth
    • H03F1/48Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/483Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with field-effect transistors
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/56Modifications of input or output impedances, not otherwise provided for
    • H03F1/565Modifications of input or output impedances, not otherwise provided for using inductive elements
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189High frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/193High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F2200/00Indexing scheme relating to amplifiers
    • H03F2200/294Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F2200/00Indexing scheme relating to amplifiers
    • H03F2200/372Noise reduction and elimination in amplifier
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F2200/00Indexing scheme relating to amplifiers
    • H03F2200/451Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

The present invention relates to a kind of high octave ultra wide band input matching circuits for low-noise amplifier, belong to technical field of radio frequency integrated circuits.The input matching circuit includes current multiplexing amplifying unit, first inductance, second inductance and resistance, wherein current multiplexing amplifying unit includes the NMOS transistor and PMOS transistor that grid is connected with drain electrode, the grid that the input terminal of match circuit passes through the first inductance connection to NMOS(PMOS) transistor, NMOS(PMOS) output end of the drain electrode of transistor as match circuit, the source electrode of NMOS transistor passes through the second inductance connection to ground, the source electrode of PMOS transistor is connected to power supply in current multiplexing amplifying unit, feedback resistance is connected across between the input and output side of match circuit.Present invention can apply to high octave ultra wide band input matching is realized in the design of high octave ultra-wideband low-noise amplifier chip.

Description

A kind of high octave ultra wide band input matching circuit for low-noise amplifier
Technical field
The invention belongs to low-noise amplifier (Low Noise Amplifier, abbreviation LNA) skills in RF IC Art field particularly relates to a kind of high octave ultra wide band input matching circuit for low-noise amplifier.
Background technique
Modern wireless communication technology is constantly progressive a series of scientific and technological achievements expedited the emergence of and has widely penetrated into society In the fields such as economy, military affairs, culture.Currently, Ka wave band spectral range below covers 2G/3G mobile communication, 4G-LTE is moved Dynamic communication, the 5th third-generation mobile communication, navigation, satellite communication, IEEE 802.11a/b/g, high data rate (High-Data Rate, HDR) the civilian wireless communication, Wi-Fi (Wireless Internet Access) frequency range such as ultra wide band, additionally it contained communication countermeasure, radar are detectd Look into equal military communications frequency range.With the continuous upgrading of civilian mobile communication business, 2G/3G/4G-LET has been carried out on hardware It is integrated, in addition to this, presence is still independent from each other between other application.But as wireless communication technique is into one Step development, the polygon concept with multi-standard has caused the considerable concern of people, especially in Software Radio Design pair Under the promotion of reusable hardware platform tight demand, the integrated concept of wireless communication electronics system multifunctional gradually gos deep into people The heart.In order to allow single device that a variety of communication standards and a variety of different applications, working band is supported to be expanded into transceiver design Only way.Because using single channel design high octave ultra wideband receiver front end manufacturing cost, chip size and Power consumption is all better than the design scheme of multi-channel parallel comprehensively.
Due to the first order active circuit as radio receiver front end, LNA plays very in wireless receiving system Important role: can be sufficiently amplified by its input signal and required signal-to-noise ratio is realized in output end.And opposite For the LNA applied to multimode multi-standard, high octave ultra wide band input matching is one of the designing technique of wherein most critical, because Not only determine that the port standing wave performance of LNA also has very big shadow to noise coefficient for high octave ultra wide band input matching circuit It rings.S is usually used in design process11It is matched to measure the input of LNA, noise coefficient is generally with NF (Noise Figure) come table Show.
In ultra wide band LNA design field, domestic and international project technical staff proposes some effective technical solutions.
Jonathan Borremans, Piet Wambacq, Charlotte Soens et al. in IEEE JSSC 2008, The 2422-2433 pages of " Low-Area Active-Feedback Low-Noise Amplifer Design in Scaled A kind of active feedback formula LNA is proposed in Digital CMOS ".Since to use only a Cascode mono- by the LNA proposed Member cooperates active feedback technique, and the broadband input matching performance of 0~6.5GHz is shown under lower power consumption.But have Source feed circuit limits high frequency matching and the noise of the LNA, it is difficult to realize that the high octave LNA to millimeter wave frequency band is designed.
Yo-Sheng Lin, Chang-Zhi Chen, Hong-Yu Yang et al. is in IEEE TMTT 2010,287- " the Analysis and Design of a CMOS UWB LNA With Dual-RLC-Branch Wideband of page 296 A kind of double RLC branch input matching networks for LNA design are proposed in Input Matching Network ", the LNA's is defeated Entering coupling bandwidth can achieve 2.6~11.9GHz, but this design scheme can not achieve the input matching of 1GHz and can deteriorate height Frequency noise coefficient.
Hsien-Ku Chen, Yo-sheng Lin, Shey-Shi Lu are in IEEE TMTT 2010, and the 2092-2104 pages " Analysis and Design of a 1.6-28GHz Compact Wideband LNA in 90-nm CMOS A kind of π-type input matching network for LNA design is proposed in Using a π-Match Input Network ", the LNA's Input coupling bandwidth can achieve 1.6~28GHz, but this design scheme is needed by means of a capacitor in parallel with input terminal It realizes, the introducing of the capacitor can deteriorate the noise coefficient of LNA.
Yo-sheng Lin, Chien-Chin Wang, Guan-Lin Lee et al. is in IEEE MWCL 2014,200- " the High-Performance Wideband Low-Noise Amplifer Using Enhanced π-Match of page 202 A kind of improvement π-type input matching network for LNA design, the input coupling bandwidth of the LNA are proposed in Input Network " It can achieve 0~12GHz, overcome the unmatched problem of low frequency, the dead resistance of input stage inductance can still deteriorate the noise of LNA Coefficient.
Yang Geliang, Xu Shilong, Du Keming et al. are in a kind of patent of invention " ultra wide band low-power consumption low noise amplification of automatic biasing The input matching circuit that load and resistive degeneration are done based on active device is proposed in device " (ZL201510220400.8), it is defeated Enter grade inductance and replaces can either realizing that ultra wide band matching in turn avoids the deterioration of noise coefficient with bonding line, but bond-wire inductor Inductance value is not easy to control, and the input matching performance of different circuits may generate larger difference.
Summary of the invention
In view of this, the present invention proposes a kind of high octave ultra wide band input matching circuit for low-noise amplifier, Its high octave ultra wide band matching problem for being able to solve LNA monolithic, while not having larger impact to noise coefficient again.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of high octave ultra wide band input matching circuit for low-noise amplifier, including current multiplexing amplification are single Member, the first inductor, the second inductor, resistor, power end, ground terminal, input terminal and output end;
The current multiplexing amplifying unit includes a NMOS transistor and a PMOS transistor, wherein NMOS crystal The grid of pipe is connected with the grid of PMOS transistor, and the drain electrode of NMOS transistor is connected with the drain electrode of PMOS transistor and connects jointly It is connected to the output end, the source electrode of PMOS transistor is connect with the power end;
NMOS transistor and/or the grid of PMOS transistor are connected to one end of the first inductor, the first inductor it is another One end is connect with the input terminal, and the source electrode of NMOS transistor is connected to one end of the second inductor, the second inductor it is another End is connect with the ground terminal, and the resistor is connected across between the input terminal and the output end.
The present invention compared with prior art, has the following beneficial effects:
1) present invention is for can be realized the high octave ultra wide band input matching of DC to millimeter wave frequency band when LNA design.
2) structure proposed by the invention is preposition by the feedback point in matching network, weakens parasitic in gate series inductance Influence of the resistance to LNA noise coefficient.
Detailed description of the invention
Fig. 1 is a kind of high octave ultra wide band input matching circuit for low-noise amplifier in the embodiment of the present invention Schematic diagram.
Fig. 2 (a) and Fig. 2 (b) is the small-signal equivalent circuit and its decomposition circuit of Fig. 1 respectively.
Fig. 3 is a kind of high octave ultra wide band input matching circuit for low-noise amplifier in the embodiment of the present invention Input match parameter S11Simulation curve.
Fig. 4 is a kind of high octave ultra wide band input matching circuit use for low-noise amplifier in the embodiment of the present invention NF simulation curve when LNA design.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of high octave ultra wide band input matching circuit for low-noise amplifier, including current multiplexing amplification are single Member, the first inductor, the second inductor and feedback resistance.Wherein, current multiplexing amplifying unit is by stacking the NMOS crystal connected Pipe and PMOS transistor composition, specific connection relationship are as follows: the grid of NMOS transistor is connected with the grid of PMOS transistor, NMOS The drain electrode of transistor is connected to the output end of input matching circuit, the first inductor of grid after being connected with the drain electrode of PMOS transistor Input terminal of the one end as input matching circuit, the other end of the first inductor is connected to above-mentioned NMOS (PMOS) transistor Grid.The source electrode of NMOS transistor is connected with one end of the second inductor, the other end ground connection of the second inductor, PMOS transistor Source electrode be connected to power supply.One end of feedback resistance is connected with the input terminal of match circuit, the output of the other end and match circuit End is connected.
Specifically, as shown in Figure 1, a kind of high octave ultra wide band input matching circuit for low-noise amplifier, It include: a NMOS transistor M1, a PMOS transistor M2, a resistance RfWith two inductance L1、L2, M1And M2Pin contain Justice is as shown in the pin schematic diagram in figure.
Wherein, NMOS transistor M1With PMOS transistor M2Grid link together, NMOS transistor M1With PMOS crystal Pipe M2Drain electrode also link together and the output end as input matching circuit.The input terminal and inductance L of match circuit1One End is connected, inductance L1The other end be connected to NMOS transistor M1With PMOS transistor M2Grid.NMOS transistor M1Source electrode It is connected to inductance L2One end, inductance L2The other end ground connection.PMOS transistor M2Source electrode be connected to power supply VDC.Resistance RfAcross It connects between input and output end.
It is needed when carrying out Match circuits in view of inductance L1Non-ideal characteristic, it comprises dead resistance R1.This Outside, the input parasitism C of late-class circuitLAlso the input of LNA can be matched and generates certain influence, it is also desirable in Match circuits It accounts for.
Fig. 2 (a) is the small-signal equivalent circuit of Fig. 1, wherein containing above-mentioned R1And CL, Fig. 2 (b) is to Fig. 2's (a) It further decomposes, resistance RfIt is decomposed into resistance Rf1With resistance Rf2.ω is defined as signal angular frequency, then in Fig. 2 (a) and (b) ωT1≈gm1/Cgs1It is the characteristic angular frequency of transistor M1, gm1It is the mutual conductance of transistor M1, Cgs1It is the grid source parasitism of transistor M1 Capacitor, in addition, Cgd1It is the gate-drain parasitic capacitances of transistor M1, Cgs2、Cgd2Deng similarly.R in Fig. 2 (a) (b)TFor transistor M1 Featured resistance.
When the working frequency of input matching circuit is relatively low, input impedance ZinMeet following formula
G in formula (1)vIt is B point to the voltage gain of A point.
When input matching circuit work in certain higher frequency, source degeneracy inductance L2With capacitor Cgs1Resonance, then input impedance ZinExpression formula be
Zin=Rf1//Z′in (2)
" // " is symbol in parallel in formula (2), wherein
J is imaginary unit, C C in formula (3)gs2、CgdWith CLEquivalent capacity together, as shown in formula (4), due to CL's High-frequency resistance and Rf2Compared to very little, so Rf2It is ignored in formula (3).
It can be seen that by formula (3)
WhenI.e.When
" // " is symbol in parallel, inductance L in formula (5)1Dead resistance R1With Rf1Relationship in parallel is showed, shows this hair The ultra wide band matching that input not only may be implemented in the match circuit of bright proposition can also weaken high frequency treatment inductance parasitic resistance to noise The influence of coefficient optimizes the noiseproof feature of low-noise amplifier.
Fig. 3 is the input match parameter S for applying the LNA of high octave ultra wide band match circuit proposed by the invention11 Simulation curve.From simulation result it can be seen that the S of the LNA11It is less than -13dB within DC~30GHz, minimum value reaches - 19.6dB shows good matching performance.
Fig. 4 is the NF simulation curve for applying the LNA of high octave ultra wide band match circuit proposed by the invention.From imitative True result can be seen that the NF of the LNA is less than 4.8dB within DC~30GHz, and minimum value is less than 2.5dB, shows good Noiseproof feature.
Above-mentioned simulation result confirms a kind of high octave ultra-wide for low-noise amplifier provided by the present invention Band input matching circuit is effective.
Although the present invention is shown and has been described by reference to its certain preferred embodiment, those skilled in the art Member is it should be understood that without departing from the spirit and scope of the present invention, form being carried out to it and the various of details being repaired Change.

Claims (1)

1. a kind of high octave ultra wide band input matching circuit for low-noise amplifier, which is characterized in that multiple including electric current With amplifying unit, the first inductor, the second inductor, resistor, power end, ground terminal, input terminal and output end;
The current multiplexing amplifying unit includes a NMOS transistor and a PMOS transistor, wherein NMOS transistor Grid is connected with the grid of PMOS transistor, and the drain electrode of NMOS transistor is connected and is commonly connected to the drain electrode of PMOS transistor The output end, the source electrode of PMOS transistor are connect with the power end;
NMOS transistor and/or the grid of PMOS transistor are connected to one end of the first inductor, the other end of the first inductor Connect with the input terminal, the source electrode of NMOS transistor is connected to one end of the second inductor, the other end of the second inductor with The ground terminal connection, the resistor are connected across between the input terminal and the output end.
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