CN104702219B - A kind of single ended input double balanced passive mixers - Google Patents
A kind of single ended input double balanced passive mixers Download PDFInfo
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- CN104702219B CN104702219B CN201510119931.8A CN201510119931A CN104702219B CN 104702219 B CN104702219 B CN 104702219B CN 201510119931 A CN201510119931 A CN 201510119931A CN 104702219 B CN104702219 B CN 104702219B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
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Abstract
The invention discloses a kind of single ended input double balanced passive mixers, including balun transconductance stage, passive local oscillator switch and trans-impedance amplifier；The balun transconductance stage realizes the transconductance stage circuit of two-way difference current output using single channel bias current, and the impedance that the transconductance stage is switched using the passive local oscillator effect of moving drags down transconductance stage output impedance at local frequency and constructs similar exchange virtual earth；When input voltage changes, mutual conductance pipe realizes that single channel bias current realizes the function of two-way difference current output respectively from difference output end pull electric current.Present invention saves the transconductance stage electric current of half, realize same equivalent transconductance, significantly reduce power consumption, while suitable for single ended input, the passive frequency mixer of difference output application scenario.
Description
Technical field
The present invention relates to a kind of low-power consumption single ended input double balanced passive mixers, belong to frequency mixer technical field.
Background technology
In radio-frequency receiving system, frequency mixer is responsible for radiofrequency signal being converted to base band or intermediate-frequency band, is reception chain
Nucleus module in road, as the link of radiofrequency signal and intermediate-freuqncy signal, its power consumption levels occupies considerable in receives link
Share.Therefore in order to realize the low-power consumption of overall receiving circuit, the optimization design to frequency mixer power consumption is very crucial.From radio frequency
Seen in the structure of front end, under many circumstances in order to which the low-noise amplifier with antenna direct-coupling, radio-frequency front-end uses single-ended
Input, the structure of Single-end output.And frequency mixer then preferably uses the dual balanced structure of difference from the point of view of performance and port isolation.
In this case it is necessary to which a kind of double balanced mixer of single ended input goes to match low-noise amplifier.Relatively common mode
It is the mode that conventional fully differential frequency mixer is connected into pseudo-differential, but from power consumption aspect, pseudo-differential mode wastes it
In a mutual conductance branch road bias current, have impact on effect.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of single ended input double flat weighing apparatus nothing
Source frequency mixer, which saves the transconductance stage electric current of half, realizes same equivalent transconductance, significantly reduces power consumption, is applicable simultaneously
In single ended input, the passive frequency mixer of difference output application scenario.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：A kind of double balanced passives of single ended input
Frequency mixer, including balun transconductance stage, passive local oscillator switch and trans-impedance amplifier；The transconductance stage is responsible for input radio frequency voltage
It is converted into radio-frequency current；Passive local oscillator switch carries out frequency conversion effect to the radio-frequency current；Trans-impedance amplifier is then responsible for medium frequency electric
Circulation chemical conversion output voltage of intermediate frequency, the balun transconductance stage realizes the mutual conductance of two-way difference current output using single channel bias current
Level circuit, the impedance that the transconductance stage is switched using the passive local oscillator effect of moving drags down transconductance stage output impedance at local frequency
And construct similar exchange virtual earth；When input voltage changes, mutual conductance pipe from difference output end pull electric current, realizes that single channel is inclined respectively
Put the function that electric current realizes the output of two-way difference current.
The balun transconductance stage includes the first trsanscondutance amplifier (A1), first, second, third NMOS tube, the first PMOS,
Input voltage connects the grid of the 3rd NMOS tube (MN3), and the source electrode of the 3rd NMOS tube (MN3) connects the second NMOS tube (MN2) drain electrode；
The source ground of second NMOS tube (MN2), and grid connects the first NMOS tube (MN1) grid；The source electrode of first NMOS tube (MN1)
Ground connection, and grid and drain electrode connect the negative terminal of reference current source, the positive termination power of reference current source；3rd NMOS tube (MN3)
Drain electrode connects the first PMOS (MP1) drain electrode, and the source electrode of the first PMOS (MP1) connects power supply, and grid connects the first mutual conductance amplification
The output end of device (A1)；The negative input termination reference voltage of first trsanscondutance amplifier (A1), and positive input termination first resistor
(R1) anode, the negative terminal of first resistor (R1) connects the first PMOS (MP1) drain electrode；The anode and first of second resistance (R2)
The positive input terminal of trsanscondutance amplifier (A1) is connected, and the negative terminal of second resistance (R2) is connected with the grid of the 3rd NMOS tube (MN3).
The passive local oscillator switch includes first, second electric capacity；The anode of first electric capacity (C1) connects the 3rd NMOS tube
(MN3) drain electrode, and negative terminal connects the source electrode of the second PMOS (MP2) and the source electrode of the 3rd PMOS (MP3)；Second electric capacity
(C2) anode connects the source electrode of the 3rd NMOS tube (MN3), and negative terminal connects the source electrode and the 5th PMOS of the 4th PMOS (MP4)
(MP5) source electrode.
The trans-impedance amplifier includes the second trsanscondutance amplifier (A2), the drain electrode and the 4th of second PMOS (MP2)
The drain electrode of PMOS (MP4) connects the second trsanscondutance amplifier (A2) negative input end, the drain electrode and the 5th of the 3rd PMOS (MP3)
The drain electrode of PMOS (MP5) connects the second trsanscondutance amplifier (A2) positive input terminal；Second trsanscondutance amplifier (A2) and the 5th PMOS
The grid of pipe (MP5) connects local oscillation signal negative pole, and the grid of the 3rd PMOS (MP3) and the 4th PMOS (MP4) connects local oscillation signal
Positive pole；The positive input terminal of the trsanscondutance amplifier of positive termination second (A2) of the anode of 3rd resistor (R3) and the 3rd electric capacity (C3), the
The negative terminal of the negative terminal of three resistance (R3) and the 3rd electric capacity (C3) connects the second trsanscondutance amplifier (A2) negative output terminal；4th resistance
(R4) anode and the negative input end of the trsanscondutance amplifier of positive termination second (A2) of the 4th electric capacity (C4), the 4th resistance (R4) it is negative
The negative terminal of end and the 4th electric capacity (C4) connects the second trsanscondutance amplifier (A2) positive output end.
Beneficial effect：The single ended input double balanced passive mixers that the present invention is provided, compared with prior art, with following effect
Really：
, should because the balun transconductance stage realizes the transconductance stage circuit of two-way difference current output using single channel bias current
The impedance that transconductance stage is switched using the passive local oscillator effect of moving, transconductance stage output impedance is dragged down at local frequency and is constructed similar
Exchange virtual earth；When input voltage changes, mutual conductance pipe realizes that single channel bias current is realized respectively from difference output end pull electric current
The function of two-way difference current output, up and down respectively connect PMOS current source and NMOS electric current of the circuit in NMOS mutual conductance pipes
Source, make use of the impedance variations effect of passive mixing switch, and the output impedance of transconductance stage is dragged down at local frequency and is constructed near
Like exchange virtual earth, the change of input voltage will cause mutual conductance tube current to change, and because transconductance stage flows into the electric current on power supply and ground
Fixed, and the source-drain electrode of mutual conductance pipe switchs that the impedance seen into is sufficiently low toward local oscillator, therefore its radio-frequency current produced is equal
Local oscillator switching stage is injected, its source electrode and drain current are equal in magnitude, opposite in phase.Compared to the conventional differential knot of identical transconductance value
Structure, its bias current can reduce half.
From the above：The present invention is applied to single ended input, the passive frequency mixer of difference output application scenario.The frequency mixer
The effect that two-way difference current is exported is realized using single channel bias current, the transconductance stage electric current of half has been saved, realized same
The equivalent transconductance of sample, significantly reduces power consumption.
Brief description of the drawings
Fig. 1 is low-power consumption single ended input double balanced passive mixers circuit diagram of the invention；
Fig. 2 changes bent for the low-power consumption single ended input double balanced passive mixers conversion gain of the present invention with incoming frequency
Line；
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
A kind of single ended input double balanced passive mixers, as shown in figure 1, the frequency mixer is switched by balun transconductance stage, local oscillator
And trans-impedance amplifier is constituted；Divide upper consistent with traditional passive frequency mixer from functional module：Transconductance stage is responsible for penetrating input
Frequency photovoltaic conversion is radio-frequency current；Passive local oscillator switch carries out frequency conversion effect to the radio-frequency current；Trans-impedance amplifier is then responsible for will
Electric current of intermediate frequency changes into output voltage of intermediate frequency.The balun transconductance stage realizes that two-way difference current is exported using single channel bias current
Transconductance stage circuit, the impedance that the transconductance stage is switched using the passive local oscillator effect of moving drags down transconductance stage defeated at local frequency
Go out impedance and construct similar exchange virtual earth；When input voltage changes, mutual conductance pipe is realized respectively from difference output end pull electric current
Single channel bias current realizes the function of two-way difference current output.
The balun transconductance stage includes the first trsanscondutance amplifier (A1), first, second, third NMOS tube, the first PMOS,
Input voltage connects the grid of the 3rd NMOS tube (MN3), and the source electrode of the 3rd NMOS tube (MN3) connects the second NMOS tube (MN2) drain electrode；
The source ground of second NMOS tube (MN2), and grid connects the first NMOS tube (MN1) grid；The source electrode of first NMOS tube (MN1)
Ground connection, and grid and drain electrode connect the negative terminal of reference current source, the positive termination power of reference current source；3rd NMOS tube (MN3)
Drain electrode connects the first PMOS (MP1) drain electrode, and the source electrode of the first PMOS (MP1) connects power supply, and grid connects the first mutual conductance amplification
The output end of device (A1)；The negative input termination reference voltage of first trsanscondutance amplifier (A1), and positive input termination first resistor
(R1) anode, the negative terminal of first resistor (R1) connects the first PMOS (MP1) drain electrode；The anode and first of second resistance (R2)
The positive input terminal of trsanscondutance amplifier (A1) is connected, and the negative terminal of second resistance (R2) is connected with the grid of the 3rd NMOS tube (MN3).
The passive local oscillator switch includes first, second electric capacity；The anode of first electric capacity (C1) connects the 3rd NMOS tube
(MN3) drain electrode, and negative terminal connects the source electrode of the second PMOS (MP2) and the source electrode of the 3rd PMOS (MP3)；Second electric capacity
(C2) anode connects the source electrode of the 3rd NMOS tube (MN3), and negative terminal connects the source electrode and the 5th PMOS of the 4th PMOS (MP4)
(MP5) source electrode.
The trans-impedance amplifier includes the second trsanscondutance amplifier (A2), the drain electrode and the 4th of second PMOS (MP2)
The drain electrode of PMOS (MP4) connects the second trsanscondutance amplifier (A2) negative input end, the drain electrode and the 5th of the 3rd PMOS (MP3)
The drain electrode of PMOS (MP5) connects the second trsanscondutance amplifier (A2) positive input terminal；Second trsanscondutance amplifier (A2) and the 5th PMOS
The grid of pipe (MP5) connects local oscillation signal negative pole, and the grid of the 3rd PMOS (MP3) and the 4th PMOS (MP4) connects local oscillation signal
Positive pole；The positive input terminal of the trsanscondutance amplifier of positive termination second (A2) of the anode of 3rd resistor (R3) and the 3rd electric capacity (C3), the
The negative terminal of the negative terminal of three resistance (R3) and the 3rd electric capacity (C3) connects the second trsanscondutance amplifier (A2) negative output terminal；4th resistance
(R4) anode and the negative input end of the trsanscondutance amplifier of positive termination second (A2) of the 4th electric capacity (C4), the 4th resistance (R4) it is negative
The negative terminal of end and the 4th electric capacity (C4) connects the second trsanscondutance amplifier (A2) positive output end.
As shown in Fig. 2 be the low-power consumption single ended input double balanced passive mixers conversion gain curve of the present embodiment, its
Vibration frequency is 1GHz；It can be seen that 20MHz bandwidth internal conversion gain is about 24dB near local frequency.
From the foregoing, the innovation of the present embodiment is mainly reflected in the design of transconductance stage.Conventional differential transconductance stage
Comprising independent difference branch road, it, which exports radio-frequency current, has opposite polarity, is injected separately into the difference branch road of local oscillator switch.For
Guarantee bandwidth and noiseproof feature, transconductance stage bias current occupy larger ratio in frequency mixer, therefore if reduction across
Frequency mixer overall power consumption can then be significantly reduced by leading grade electric current.The present invention proposes that one kind realizes two-way difference using single channel bias current
The transconductance stage circuit of electric current output；The circuit NMOS mutual conductance pipes series connection PMOS current sources and NMOS current sources respectively up and down,
The impedance variations effect of passive mixing switch is make use of, the output impedance of transconductance stage is dragged down at local frequency and approximate hand over is constructed
Virtual earth is flowed, the change of input voltage will cause mutual conductance tube current to change, and because the electric current that transconductance stage flows into power supply and ground is consolidated
It is fixed, and to switch the impedance seen into toward local oscillator sufficiently low for the source-drain electrode of mutual conductance pipe, therefore its radio-frequency current produced injects
Local oscillator switching stage, its source electrode and drain current are equal in magnitude, opposite in phase.In passive frequency mixer, transconductance stage generally takes up
Most of current drain, compared to the conventional differential structure of identical transconductance value, its bias current can reduce half.That is this hair
It is bright, the transconductance stage electric current of half has been saved, overall power is significantly reduced.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of single ended input double balanced passive mixers, including balun transconductance stage, passive local oscillator switch and trans-impedance amplifier；
It is radio-frequency current that the transconductance stage, which is responsible for input radio frequency photovoltaic conversion,；Passive local oscillator switch carries out frequency conversion work to the radio-frequency current
With；Trans-impedance amplifier is then responsible for electric current of intermediate frequency changing into output voltage of intermediate frequency, it is characterised in that：The balun transconductance stage is used
Single channel bias current realizes the transconductance stage circuit of two-way difference current output, and the impedance that the transconductance stage is switched using passive local oscillator is removed
Shifting is acted on, and transconductance stage output impedance is dragged down at local frequency and similar exchange virtual earth is constructed；When input voltage changes, mutual conductance
Pipe realizes that single channel bias current realizes the function of two-way difference current output respectively from difference output end pull electric current；The bar
Human relations transconductance stage includes the first trsanscondutance amplifier（A1）, first, second, third NMOS tube, the first PMOS, input voltage connects the 3rd
NMOS tube（MN3）Grid, the 3rd NMOS tube（MN3）Source electrode connect the second NMOS tube（MN2）Drain electrode；Second NMOS tube
（MN2）Source ground, and grid connects the first NMOS tube（MN1）Grid；First NMOS tube（MN1）Source ground, and grid
Pole and drain electrode connect the negative terminal of reference current source, the positive termination power of reference current source；3rd NMOS tube（MN3）Drain electrode connect first
PMOS（MP1）Drain electrode, the first PMOS（MP1）Source electrode connect power supply, and grid connects the first trsanscondutance amplifier（A1）It is defeated
Go out end；First trsanscondutance amplifier（A1）Negative input termination reference voltage, and positive input termination first resistor（R1）Anode,
One resistance（R1）Negative terminal connect the first PMOS（MP1）Drain electrode；Second resistance（R2）Anode and the first trsanscondutance amplifier
（A1）Positive input terminal be connected, second resistance（R2）Negative terminal and the 3rd NMOS tube（MN3）Grid be connected.
2. single ended input double balanced passive mixers according to claim 1, it is characterised in that：The passive local oscillator switch
Including first, second electric capacity；First electric capacity（C1）Anode connect the 3rd NMOS tube（MN3）Drain electrode, and negative terminal connects second
PMOS（MP2）Source electrode and the 3rd PMOS（MP3）Source electrode；Second electric capacity（C2）Anode connect the 3rd NMOS tube
（MN3）Source electrode, and negative terminal connects the 4th PMOS（MP4）Source electrode and the 5th PMOS（MP5）Source electrode.
3. single ended input double balanced passive mixers according to claim 2, it is characterised in that：The trans-impedance amplifier bag
Include the second trsanscondutance amplifier（A2）, second PMOS（MP2）Drain electrode and the 4th PMOS（MP4）Drain electrode connect second across
Lead amplifier（A2）Negative input end, the 3rd PMOS（MP3）Drain electrode and the 5th PMOS（MP5）Drain electrode connect the second mutual conductance
Amplifier（A2）Positive input terminal；Second trsanscondutance amplifier（A2）With the 5th PMOS（MP5）Grid connect local oscillation signal negative pole,
3rd PMOS（MP3）With the 4th PMOS（MP4）Grid connect local oscillation signal positive pole；3rd resistor（R3）Anode and the 3rd
Electric capacity（C3）The trsanscondutance amplifier of positive termination second（A2）Positive input terminal, 3rd resistor（R3）Negative terminal and the 3rd electric capacity（C3）
Negative terminal connect the second trsanscondutance amplifier（A2）Negative output terminal；4th resistance（R4）Anode and the 4th electric capacity（C4）Positive termination
Second trsanscondutance amplifier（A2）Negative input end, the 4th resistance（R4）Negative terminal and the 4th electric capacity（C4）Negative terminal connect the second mutual conductance
Amplifier（A2）Positive output end.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119931.8A CN104702219B (en) | 2015-03-18 | 2015-03-18 | A kind of single ended input double balanced passive mixers |
| PCT/CN2016/072686 WO2016145950A1 (en) | 2015-03-18 | 2016-01-29 | Single-ended input and double-balanced passive mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119931.8A CN104702219B (en) | 2015-03-18 | 2015-03-18 | A kind of single ended input double balanced passive mixers |
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| Publication Number | Publication Date |
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| CN104702219A CN104702219A (en) | 2015-06-10 |
| CN104702219B true CN104702219B (en) | 2017-11-07 |
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| CN201510119931.8A Expired - Fee Related CN104702219B (en) | 2015-03-18 | 2015-03-18 | A kind of single ended input double balanced passive mixers |
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| Country | Link |
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| CN (1) | CN104702219B (en) |
| WO (1) | WO2016145950A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702219B (en) * | 2015-03-18 | 2017-11-07 | 东南大学 | A kind of single ended input double balanced passive mixers |
| CN105245190B (en) * | 2015-10-27 | 2017-11-28 | 东南大学 | One kind is without inductance transconductance-enhancing passive frequency mixer |
| CN105553492B (en) * | 2015-12-14 | 2018-01-16 | 东南大学 | A kind of low supply voltage double conversion receiver rf front-end |
| CN106100589B (en) * | 2016-06-08 | 2019-07-02 | 东南大学苏州研究院 | A kind of double narrowband passive frequency mixers of single-turn |
| CN106603014B (en) * | 2016-12-28 | 2023-07-25 | 杭州迦美信芯通讯技术有限公司 | Voltage mode passive mixer |
| CN107863938B (en) * | 2017-11-30 | 2018-09-25 | 华南理工大学 | It is a kind of it is passive under conversion mixer |
| CN107968631B (en) * | 2018-01-26 | 2023-09-12 | 广东工业大学 | Mixer applied to K wave band and down-conversion mixer circuit thereof |
| CN110120786B (en) * | 2018-02-06 | 2023-06-30 | 中芯国际集成电路制造（天津）有限公司 | Mixer and wireless communication device |
| CN111555717B (en) * | 2020-06-15 | 2023-05-12 | 深圳职业技术学院 | Crystal oscillation circuit with built-in capacitor |
| CN113271068B (en) * | 2021-04-02 | 2023-03-14 | 西安电子科技大学 | Low-noise amplifier with low power consumption for dual-power voltage transconductance calibration |
| CN113965165A (en) * | 2021-10-22 | 2022-01-21 | 东南大学 | Broadband high-fundamental-wave suppression double-balance self-mixing structure millimeter wave quadrupler |
| CN114124142B (en) * | 2021-12-01 | 2023-05-09 | 东南大学 | Current multiplexing low-power consumption differential super-regenerative radio frequency front-end circuit |
| CN114499413B (en) * | 2021-12-30 | 2023-04-18 | 电子科技大学 | Bidirectional active mixer with source-drain interchange technology |
| CN114553147B (en) * | 2022-01-12 | 2024-02-02 | 中国电子科技集团公司第十研究所 | Gain-configurable double-balanced passive mixer |
| CN115085675A (en) * | 2022-06-23 | 2022-09-20 | 东南大学 | Silicon-based terahertz frequency pentamultiplier based on semi-closed coupling structure |
| CN115021715B (en) * | 2022-07-01 | 2024-08-23 | 哈尔滨工业大学 | Tunable active inductance type band-pass filter |
| CN116683872B (en) * | 2023-06-08 | 2024-01-19 | 上海韬润半导体有限公司 | Double-balanced mixer circuit, integrated circuit and implementation method thereof |
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| KR101162337B1 (en) * | 2008-12-16 | 2012-07-05 | 한국전자통신연구원 | Signal converter for wireless communication and receiving apparatus |
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| CN104702219B (en) * | 2015-03-18 | 2017-11-07 | 东南大学 | A kind of single ended input double balanced passive mixers |
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- 2016-01-29 WO PCT/CN2016/072686 patent/WO2016145950A1/en active Application Filing
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| WO2003007471A2 (en) * | 2001-07-13 | 2003-01-23 | Advanced Micro Devices, Inc. | Mixer |
| CN101248578A (en) * | 2005-01-21 | 2008-08-20 | 皇家飞利浦电子股份有限公司 | Low-noise mixer |
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| CN102412786A (en) * | 2011-12-20 | 2012-04-11 | 东南大学 | Transconductance-enhancing passive frequency mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016145950A1 (en) | 2016-09-22 |
| CN104702219A (en) | 2015-06-10 |
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