CN107634737A - A kind of phase inverter for millimeter wave LO drivings - Google Patents
A kind of phase inverter for millimeter wave LO drivings Download PDFInfo
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- CN107634737A CN107634737A CN201710888376.4A CN201710888376A CN107634737A CN 107634737 A CN107634737 A CN 107634737A CN 201710888376 A CN201710888376 A CN 201710888376A CN 107634737 A CN107634737 A CN 107634737A
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Abstract
The present invention relates to a kind of phase inverter for millimeter wave LO drivings,Including the inverter amplifier being connected with input and output end,The inverter amplifier is connected to the first feedback circuit by first resistor,It is also connected to the second feedback circuit by second resistance,First feedback circuit and the second feedback circuit all connect the regulation electric current of input,The regulation electric current is respectively converted into regulation voltage Vbn and regulation voltage Vbp by the first feedback circuit and the second feedback circuit,The mutual conductance of the regulation voltage Vbp and regulation voltage Vbn to inverter amplifier is adjusted,The mutual conductance of inverter amplifier can be controlled by adjusting input regulation electric current in the present invention,The DC operating points of output then pass through the first feedback branch and the stable half in supply voltage of the second feedback circuit,Due to being finely adjusted by adjusting electric current to mutual conductance to give whole inverter amplifier other adjustment nargin,The application in low-frequency range can be increased.
Description
Technical field
The present invention relates to a kind of phase inverter for millimeter wave LO drivings, belong to communication technical field.
Background technology
With the reduction of COMS technique channel lengths, transistor can work more and more faster, anti-phase differential pair by
It is widely used in digital circuit, as shown in figure 1, having become more and more important in high frequency signals now.It is wide
It is general to be applied in the circuit as active filter and buffer amplifier, due to the trsanscondutance amplifier compared with routine, phase inverter
The nfet and pfet of amplifier can provide mutual conductance simultaneously so that it can provide higher efficiency.
In order to obtain the more preferable linearity, the half for being usually arranged to supply voltage of the work of output node, due to
Nfet and pfet grid level is same node and very high DC current gain, causes the biasing of phase inverter to be highly susceptible to process corner
Influence, especially when casacade multi-amplifier cascades, the problem of stability will be changed into potential to system.
6 grades of cascaded inverters amplifiers as shown in Figure 2, when by reducing common-mode gain, it is anti-phase difference can be improved
During amplifier difference mode gain, this mode can be used in the application of low-frequency range, however, for millimeter wave amplifier, extra
Feedback circuit adds twice of capacitive load, and this will have a strong impact on gain and the bandwidth of amplifier.
The content of the invention
The technical problem to be solved in the present invention is：To overcome above mentioned problem, there is provided a kind of for the anti-of millimeter wave LO drivings
Phase device.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of phase inverter for millimeter wave LO drivings, including the inverter amplifier being connected with input and output end,
The inverter amplifier is connected to the first feedback circuit by first resistor, and it is also connected to the second feedback by second resistance
Circuit, first feedback circuit and the second feedback circuit all connect the regulation electric current of input, and the regulation electric current passes through first
Feedback circuit and the second feedback circuit are respectively converted into regulation voltage Vbn and regulation voltage Vbp, the regulation voltage Vbp and tune
Mutual conductances of the economize on electricity pressure Vbn to inverter amplifier is adjusted.
Preferably, the inverter amplifier is connected to input by the electric capacity Cp and electric capacity Cn of parallel connection.
Preferably, first feedback circuit includes transistor M3, and transistor M3 colelctor electrode is connected to by resistance R5
Electric current Iref, transistor M3 grounded emitter are adjusted, transistor M3 base stage is connected respectively to resistance R1 one end, resistance R2
One end and transistor M1 base stage, the other end of the resistance R2 is connected to operational amplifier Q1 output end and is also connected with
Regulation voltage Vbn is exported to first resistor, operational amplifier Q1 in-phase input end is connected to resistance the R1 other end and crystal
Pipe M3 colelctor electrode.
Preferably, second feedback circuit includes transistor M2, and transistor M2 colelctor electrode is connected to transistor M1's
The in-phase input end of colelctor electrode, resistance R3 one end and operational amplifier Q2, operational amplifier Q2 inverting input and computing
Amplifier Q1 inverting input connection, transistor M2 base stage connect resistance R4 one end and the resistance R3 other end respectively,
Resistance R4 other end concatenation operation amplifier Q2 output end and it is also connected to second resistance output regulation voltage Vbp.
Preferably, operational amplifier Q1 and operational amplifier Q2 inverting input be also connected to two resistance Rref it
Between.
Preferably, the inverter amplifier includes transistor Mp and transistor Mn.
The beneficial effects of the invention are as follows：The mutual conductance of inverter amplifier can input regulation electric current by adjusting in the present invention
It is controlled, the half in supply voltage is then stablized in the DC operating points of output by the first feedback branch and the second feedback circuit,
Due to being finely adjusted by adjusting electric current to mutual conductance to give whole inverter amplifier other adjustment nargin, can increase
In the application of low-frequency range.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is one circuit diagram of prior art；
Fig. 2 is another circuit diagram of prior art；
Fig. 3 is the structural representation of one embodiment of the invention；
Fig. 4 is the partial circuit diagram of one embodiment of the invention；
Fig. 5 is the partial circuit diagram of one embodiment of the invention.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
Embodiment 1
A kind of phase inverter for millimeter wave LO drivings of the present invention as shown in Figure 3, including with input in and defeated
Go out to hold the inverter amplifier of out connections, the inverter amplifier does not limit the inverter amplifier of what cascade, can root
According to needing to carry out selection setting, two-stage cascade inverter amplifier is arranged in the present embodiment, the inverter amplifier passes through
First resistor Rbn is connected to the first feedback circuit, and it is also connected to the second feedback circuit by second resistance Rbp, and described first
Feedback circuit and the second feedback circuit all connect the regulation electric current of input, and the regulation electric current passes through the first feedback circuit and second
Feedback circuit is respectively converted into regulation voltage Vbn and regulation voltage Vbp, the regulation voltage Vbp and regulation voltage Vbn to anti-phase
The mutual conductance of device amplifier is adjusted, and the mutual conductance of inverter amplifier can be by adjusting input regulation electric current progress in the present invention
The half in supply voltage is then stablized in control, the DC operating points of output by the first feedback branch and the second feedback circuit, due to
Mutual conductance is finely adjusted to give whole inverter amplifier other adjustment nargin, can increased low by adjusting electric current
The application of frequency scope.
In a preferred embodiment, in specific circuit, as shown in figure 4, the inverter amplifier passes through parallel connection
Electric capacity Cp and electric capacity Cn be connected to input.
In a preferred embodiment, as shown in figure 5, first feedback circuit includes transistor M3, transistor M3's
Colelctor electrode is connected to regulation electric current Iref, transistor M3 grounded emitter by resistance R5, and transistor M3 base stage connects respectively
The base stage of resistance R1 one end, resistance R2 one end and transistor M1 is connected to, the other end of the resistance R2 is connected to computing and put
Big device Q1 output end and the in-phase input end company for being also connected to first resistor output regulation voltage Vbn, operational amplifier Q1
It is connected to the resistance R1 other end and transistor M3 colelctor electrode.
In a preferred embodiment, second feedback circuit includes transistor M2, transistor M2 colelctor electrode connection
One end of colelctor electrode, resistance R3 and operational amplifier Q2 in-phase input end to transistor M1, operational amplifier Q2's is anti-phase
Input is connected with operational amplifier Q1 inverting input, and transistor M2 base stage connects resistance R4 one end and resistance respectively
The R3 other end, resistance R4 other end concatenation operation amplifier Q2 output end and be also connected to second resistance output regulation
Voltage Vbp.
In a preferred embodiment, operational amplifier Q1 and operational amplifier Q2 inverting input are also connected to two
Between individual resistance Rref.
In a preferred embodiment, the inverter amplifier includes transistor Mp and transistor Mn.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (6)
1. a kind of phase inverter for millimeter wave LO drivings, it is characterised in that anti-phase including being connected with input and output end
Device amplifier, the inverter amplifier are connected to the first feedback circuit by first resistor, and it is also connected by second resistance
To the second feedback circuit, first feedback circuit and the second feedback circuit all connect the regulation electric current of input, the regulation electricity
Stream is respectively converted into regulation voltage Vbn and regulation voltage Vbp, the regulation electricity by the first feedback circuit and the second feedback circuit
The mutual conductance of pressure Vbp and regulation voltage Vbn to inverter amplifier is adjusted.
2. the phase inverter for millimeter wave LO drivings as claimed in claim 1, it is characterised in that the inverter amplifier leads to
The electric capacity Cp and electric capacity Cn for crossing parallel connection are connected to input.
3. the phase inverter for millimeter wave LO drivings as claimed in claim 1, it is characterised in that the first feedback circuit bag
Transistor M3 is included, transistor M3 colelctor electrode is connected to by resistance R5 adjusts electric current Iref, transistor M3 grounded emitter,
Transistor M3 base stage is connected respectively to the base stage of resistance R1 one end, resistance R2 one end and transistor M1, the resistance R2
The other end be connected to operational amplifier Q1 output end and be also connected to first resistor output regulation voltage Vbn, computing puts
Big device Q1 in-phase input end is connected to the resistance R1 other end and transistor M3 colelctor electrode.
4. the phase inverter for millimeter wave LO drivings as claimed in claim 1, it is characterised in that the second feedback circuit bag
Transistor M2 is included, transistor M2 colelctor electrode is connected to transistor M1 colelctor electrode, resistance R3 one end and operational amplifier Q2
In-phase input end, operational amplifier Q2 inverting input is connected with operational amplifier Q1 inverting input, transistor M2
Base stage connect resistance R4 one end and the resistance R3 other end respectively, resistance R4 other end concatenation operation amplifier Q2's is defeated
Go out to hold and be also connected to second resistance output regulation voltage Vbp.
5. the phase inverter for millimeter wave LO drivings as claimed in claim 1, it is characterised in that operational amplifier Q1 and computing
Amplifier Q2 inverting input is also connected between two resistance Rref.
6. the phase inverter for millimeter wave LO drivings as claimed in claim 1, it is characterised in that the inverter amplifier bag
Include transistor Mp and transistor Mn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710888376.4A CN107634737B (en) | 2017-09-27 | 2017-09-27 | Inverter for millimeter wave LO drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710888376.4A CN107634737B (en) | 2017-09-27 | 2017-09-27 | Inverter for millimeter wave LO drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107634737A true CN107634737A (en) | 2018-01-26 |
| CN107634737B CN107634737B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710888376.4A Active CN107634737B (en) | 2017-09-27 | 2017-09-27 | Inverter for millimeter wave LO drive |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1447506A (en) * | 2002-03-26 | 2003-10-08 | 精工爱普生株式会社 | Power circuit and PVVM circuit |
| EP2337228A1 (en) * | 2009-12-17 | 2011-06-22 | Sanyo Electric Co., Ltd. | Receiving apparatus with image frequency rejection |
| CN102394634A (en) * | 2011-09-21 | 2012-03-28 | 浙江大学 | Digital-analog combined control body-bias class-C inverter |
| CN104699162A (en) * | 2015-03-27 | 2015-06-10 | 西安华芯半导体有限公司 | Quick-response low-dropout regulator |
-
2017
- 2017-09-27 CN CN201710888376.4A patent/CN107634737B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1447506A (en) * | 2002-03-26 | 2003-10-08 | 精工爱普生株式会社 | Power circuit and PVVM circuit |
| EP2337228A1 (en) * | 2009-12-17 | 2011-06-22 | Sanyo Electric Co., Ltd. | Receiving apparatus with image frequency rejection |
| CN102394634A (en) * | 2011-09-21 | 2012-03-28 | 浙江大学 | Digital-analog combined control body-bias class-C inverter |
| CN104699162A (en) * | 2015-03-27 | 2015-06-10 | 西安华芯半导体有限公司 | Quick-response low-dropout regulator |
Non-Patent Citations (1)
| Title |
|---|
| ALI FAZLI YEKNAMI等: "A 300-mV ΔΣ Modulator Using a Gain-Enhanced, Inverter-Based Amplifier for Medical Implant Devices", 《INVERTER-BASED AMPLIFIER FOR MEDICAL IMPLANT DEVICES》 * |
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| Publication number | Publication date |
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| CN107634737B (en) | 2023-11-24 |
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Effective date of registration: 20181204 Address after: 311121 Room 609A, Building No. 998 Wenyi West Road, Wuchang Street, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: HANGZHOU ANDA TECHNOLOGY CO.,LTD. Address before: 311121 Room 408 (B) of No. 998 Wenyi West Road, Wuchang Street, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: HANGZHOU NANOCHAP ELECTRONICS Co.,Ltd. |
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