CN104202043B - A kind of orthogonal pushing controlled oscillator based on loop configuration - Google Patents
A kind of orthogonal pushing controlled oscillator based on loop configuration Download PDFInfo
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- CN104202043B CN104202043B CN201410383790.6A CN201410383790A CN104202043B CN 104202043 B CN104202043 B CN 104202043B CN 201410383790 A CN201410383790 A CN 201410383790A CN 104202043 B CN104202043 B CN 104202043B
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Abstract
The present invention relates to a kind of orthogonal pushing controlled oscillator based on loop configuration, including level Four delay cell, the present invention extracts the second harmonic in each output signal using the phase relation between output signal in the ring oscillator of level Four inverting amplifier composition, with reference to harmonic wave selection element, the second harmonic phase extracted is orthogonal each other, as the output of loop configuration, the pushing controlled oscillator of orthogonal output is formed.The structure can effectively improve the frequency of orthogonal local oscillation output signal under technique limited situation, and high-quality orthogonal local oscillation signal is provided for millimeter wave, submillimeter wave, particularly Terahertz frequency range receiving and transmitting front end.
Description
Technical field
The invention belongs to microelectronics techniques field, be related to a kind of orthogonal based on loop configuration push away-push controlled oscillator.
Background technology
Wireless receiving and dispatching front end can be divided into superhet, low intermediate frequency receiver and zero intermediate frequency according to the difference of structure
Receiver, wherein zero intermediate frequency reciver are received more and more attention due to that can realize single-chip integration.In this configuration,
Radiofrequency signal is mixed with two-way local oscillation signal orthogonal each other, directly produces baseband signal.The phase of orthogonal two-way local oscillation signal
Error and amplitude mismatch can directly affect receiver mirror image rejection ability and demodulation performance.Simultaneously as producing local oscillation signal
Circuit is operated at the highest frequency of circuit, its rate-adaptive pacemaker ability and power consumption etc. decide whole receiver receives frequency and
Power consumption.Therefore, the generation of orthogonal local oscillation signal is very crucial in zero intermediate frequency reciver.
In radio circuit, orthogonal local oscillation signal can be produced using passive polyphase filter, as shown in Figure 1.VCO is produced
Raw differential output signal, drives passive polyphase filter to produce orthogonal local oscillation signal after high-frequency amplifier Hyblid Buffer Amplifier.It is passive
The advantage that poly phase filter produces orthogonal signalling is the simple in construction of voltage controlled oscillator, but because passive polyphase filter has
6dB insertion loss, high-frequency amplifier must provide enough compensating gains, and this causes the load electricity of voltage controlled oscillator output end
Hold increase and the increase of circuit overall power consumption；On the other hand, the fluctuation of integrated circuit technology can make the resistance value on different paths
Deviation is produced with capacitance, causes the amplitude and phase difference mismatch of orthogonal two paths of signals.Another generation orthogonal local oscillation signal
Method be to use orthogonal voltage-controlled vibrator, as shown in Figure 2.Two oscillators produce orthogonal letter by certain coupled modes
Number, this method circuit structure is simple, and loop structure weakens mismatch caused by process deviation, therefore in ghz band range applications
It is more.
It is above-mentioned orthogonal as the frequency of radio communication progresses into millimeter wave, especially submillimeter wave, Terahertz frequency range
The problem of signal generating circuit encounters new.For orthogonal voltage-controlled vibrator, so high-frequency oscillator signal phase is produced
Work as difficulty, especially when required frequency is close to the cut-off frequency f of oscillator active deviceTWhen.For passive poly phase filter, remove
Outside above mentioned problem, in above-mentioned frequency range to realize that the amplifier with 6dB gains is also extremely difficult.It is all these to Terahertz frequency
The generation of section orthogonal local oscillation signal and the development of Terahertz radio communication propose serious challenge.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, to propose that a kind of orthogonal based on loop configuration pushes away-pushed control
Oscillator.Using the phase relation between output signal in the ring oscillator of level Four inverting amplifier composition, with reference to harmonic wave choosing
Select element and extract second harmonic in each output signal, build the pushing away of orthogonal output-push controlled oscillator, realize millimeter wave, Asia
The generation of millimeter wave, particularly Terahertz frequency range receiving and transmitting front end orthogonal local oscillation signal.
A kind of orthogonal based on loop configuration of the present invention, which pushes away-pushed controlled oscillator, includes level Four delay cell, and the first order is prolonged
First output end of slow unit connects the in-phase input end of second level delay cell, and the second output end of first order delay cell connects
Connect the inverting input of second level delay cell；First output end of second level delay cell connects the same of third level delay cell
Phase input, the second output end of second level delay cell connects the inverting input of third level delay cell；The third level postpones
First output end of unit connects the in-phase input end of fourth stage delay cell, the second output end connection of third level delay cell
The inverting input of fourth stage delay cell；First output end of fourth stage delay cell connects the anti-phase of first order delay cell
Input, the second output end of fourth stage delay cell connects the in-phase input end of first order delay cell；First order delay is single
Member external voltage control end, the external voltage control end of second level delay cell, third level delay cell external electrical it is voltage-controlled
End processed, the external voltage control end connection of fourth stage delay cell, are used as the orthogonal voltage controling end for pushing away-pushing controlled oscillator；
3rd output end of first order delay cell is used as orthogonal the first output end for pushing away-pushing controlled oscillator；Second level delay cell
The 3rd output end be used as orthogonal the second output end for pushing away-pushing controlled oscillator；3rd output end of third level delay cell is made
For orthogonal the 3rd output end for pushing away-pushing controlled oscillator；3rd output end of fourth stage delay cell pushes away-pushed control as orthogonal
4th output end of oscillator.
Every grade of delay cell includes two NMOS tubes, two PMOSs, two varactors, two inductance and a harmonic wave choosing
Select element.The grid of first NMOS tube, the drain electrode of the second NMOS tube, the drain electrode of the second PMOS, one end of the second varactor and
One end connection of second inductance, is used as the second output end of delay cell；The leakage of the grid of second NMOS tube, the first NMOS tube
Pole, the drain electrode of the first PMOS, one end connection of one end of the first varactor and the first inductance, it is defeated as the first of delay cell
Go out end；The grid of first PMOS connects the in-phase input end of delay cell；The grid of second PMOS connects the anti-phase of delay cell
Input；The other end of first inductance is connected with the other end of the second inductance；The other end of first varactor and the second varactor
The other end connection, be used as external voltage control end；First PMOS, the source electrode of the second PMOS meet power vd D；First NMOS
Pipe, the source electrode of the second NMOS tube are connected with one end of frequency selective element, are used as the 3rd output end of delay cell；Harmonic wave is selected
The other end ground connection of element.
In the present invention, the first inductance, the second inductance, the first varactor, the second varactor, the first NMOS and the 2nd NMOS
Constitute a capacitor and inductor type voltage controlled oscillator；First PMOS, the second PMOS are realized and respectively prolonged as the input of delay cell
Interconnection between slow unit is to constitute loop；Frequency selective element realizes that the selection of the second harmonic in delay cell output signal is defeated
Go out.
According to the characteristics of loop, the phase difference between delay cell output signal and input signal is 180o+45o, each delay
The phase of element output signal is (N-1) x (180o+45o), wherein N is the series of delay cell.Further according to delay cell output
Phase relation in signal between second harmonic component and fundametal compoment, can obtain each output port of delay cell the 3rd output letter
Number phase be (N-1) x90o, wherein N is the series of delay cell.So, the 3rd output port signal of the first delay cell
(phase is 0o), (phase is 180 to the 3rd output port signal of the 3rd delay cello) and the second delay cell is the 3rd defeated
(phase is 90 to exit port signalo), (phase is 270 to the 3rd output port signal of the 4th delay cello) orthogonal letter each other
Number, realize it is orthogonal push away-push controlled oscillator.
The present invention can effectively improve the frequency of orthogonal local oscillation output signal in the case where technique is limited, be millimeter wave,
Submillimeter wave, particularly Terahertz frequency range receiving and transmitting front end provide high-quality orthogonal local oscillation signal.
Brief description of the drawings
Fig. 1 is the orthogonal oscillating signal generating circuit based on passive poly phase filter；
Fig. 2 is the orthogonal oscillating signal generating circuit based on quadrature oscillator；
Fig. 3 is the present invention based on the orthogonal structure for pushing away-pushing controlled oscillator of loop configuration；
Fig. 4 is the structure of delay cell in Fig. 3.
Embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings.
The present invention provide a kind of orthogonal based on loop configuration push away-push controlled oscillator.Utilize level Four inverting amplifier structure
Into ring oscillator in phase relation between output signal, extract with reference to harmonic wave selection element it is secondary in each output signal
Harmonic wave, builds the pushing away of orthogonal output-push controlled oscillator, realizes before millimeter wave, particularly submillimeter wave, Terahertz frequency range transmitting-receiving
Hold the generation of orthogonal local oscillation signal.
As shown in figure 3, the present invention includes level Four delay cell, first order delay cell D1 the first output end vo ut_f connects
Meet second level delay cell D2 in-phase input end Vin+, first order delay cell D1 the second output end vo utb_f connections
The inverting input Vin- of secondary delay unit；Second level delay cell D2 first output end vo ut_f connections third level delay
The in-phase input end Vin+ of cells D 3, second level delay cell D2 the second output end vo utb_f connection third level delay cells
Inverting input Vin-；Third level delay cell D3 the first output end vo ut_f connection fourth stage delay cells D4 same phase
Input Vin+, third level delay cell D3 the second output end vo utb_f connection fourth stage delay cells D4 anti-phase input
Hold Vin-；Fourth stage delay cell D4 the first output end vo ut_f connection first order delay cells D1 inverting input
Vin-, fourth stage delay cell D4 the second output end vo utb_f connection first order delay cells D1 in-phase input end Vin+；
First order delay cell D1 external voltage control end Vtune, second level delay cell D2 external voltage control end Vtune,
Third level delay cell D3 external voltage control end Vtune, fourth stage delay cell D4 external voltage control end Vctrl connect
Connect, be used as the orthogonal voltage controling end Vctrl for pushing away-pushing controlled oscillator；First order delay cell D1 the 3rd output end vo ut_
2f is used as orthogonal the first output end I+ for pushing away-pushing controlled oscillator；Second level delay cell D2 the 3rd output end vo ut_2f makees
For orthogonal the second output end Q+ for pushing away-pushing controlled oscillator；Third level delay cell D3 the 3rd output end vo ut_2f is as just
Hand over the 3rd output end I- for pushing away-pushing controlled oscillator；Fourth stage delay cell D4 the 3rd output end vo ut_2f is as orthogonal
Push away-push the 4th output end Q- of controlled oscillator.
Every grade of delay cell includes two NMOS tubes, two PMOSs, two varactors, two inductance and a harmonic wave choosing
Element is selected, as shown in Figure 4.First NMOS tube MN1 grid, the second NMOS tube MN2 drain electrode, the second PMOS MP2 drain electrode,
Second varactor Cvar2 one end and the connection of the second inductance L2 one end, are used as the second output end vo utb_f of delay cell；
Second NMOS tube MN2 grid, the first NMOS tube MN1 drain electrode, the first PMOS MP1 drain electrode, the first varactor Cvar1
One end and the connection of the first inductance L1 one end, are used as the first output end vo ut_f of delay cell；First PMOS MP1 grid
Meet the in-phase input end Vin+ of delay cell；Second PMOS MP2 grid meets the inverting input Vin- of delay cell；First
The inductance l1 other end is connected with the second inductance l2 other end；The first varactor Cvar1 other end and the second varactor
Cvar2 other end connection, is used as external voltage control end Vtune；First PMOS MP1, the second PMOS MP2 source electrode connect
Power vd D；First NMOS tube MN1, the second NMOS tube MN2 source electrode are connected with frequency selective element T1 one end, are used as delay
3rd output end vo ut_2f of unit；The other end ground connection of harmonic wave selection element.
The above-mentioned orthogonal output based on loop configuration is pushed away-pushed in controlled oscillator, and the frequency of order output orthogonal signalling is f0,
It is then f0/2 by the resonant frequency of inductance L1/L2 and varactor the Cvar1/Cvar2 resonant network constituted in delay cell；Transfiguration
Pipe Cvar1/Cvar2 selection should meet the requirement of reference frequency output, it is assumed that reference frequency output is (f0max,f0min), electricity
The value for feeling L1/L2 is L0, and the capacitance scope of this varactor will include following scope：(1/(2f0max)2L0, 1/(2
f0min)2L0)；Frequency selective element T1 electrical length is 1/4 of signal wavelength at frequency f0, to realize the effective of second harmonic
Output.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description should not be considered as limitative to the invention.After those skilled in the art have read the above, for the present invention
A variety of modifications and replace all will be apparent.Therefore, protection scope of the present invention should be limited by appended claim
It is fixed.
Claims (2)
1. a kind of orthogonal based on loop configuration push away-push controlled oscillator, it is characterised in that：Including level Four delay cell, first
First output end of level delay cell connects the in-phase input end of second level delay cell, the second output of first order delay cell
The inverting input of end connection second level delay cell；The first output end connection third level delay cell of second level delay cell
In-phase input end, the second output end of second level delay cell connects the inverting input of third level delay cell；The third level
First output end of delay cell connects the in-phase input end of fourth stage delay cell, the second output end of third level delay cell
Connect the inverting input of fourth stage delay cell；The first output end connection first order delay cell of fourth stage delay cell
Inverting input, the second output end of fourth stage delay cell connects the in-phase input end of first order delay cell；The first order is prolonged
The external voltage control end of slow unit, the external voltage control end of second level delay cell, the external electrical of third level delay cell
Control end, the connection of the external voltage control end of fourth stage delay cell are pressed, is controlled as the orthogonal voltage for pushing away-pushing controlled oscillator
End；3rd output end of first order delay cell is used as orthogonal the first output end for pushing away-pushing controlled oscillator；Second level delay is single
3rd output end of member is used as orthogonal the second output end for pushing away-pushing controlled oscillator；3rd output end of third level delay cell
It is used as orthogonal the 3rd output end for pushing away-pushing controlled oscillator；3rd output end of fourth stage delay cell is pushed away-pushed as orthogonal
4th output end of controlled oscillator；
Every grade of delay cell includes two NMOS tubes, two PMOSs, two varactors, two inductance and a harmonic wave selection member
Part, the grid of the first NMOS tube, the drain electrode of the second NMOS tube, the drain electrode of the second PMOS, one end of the second varactor and second
One end connection of inductance, is used as the second output end of delay cell；The grid of second NMOS tube, the drain electrode of the first NMOS tube,
One end connection of the drain electrode of one PMOS, one end of the first varactor and the first inductance, is used as the first output end of delay cell；
The grid of first PMOS connects the in-phase input end of delay cell；The grid of second PMOS connects the anti-phase input of delay cell
End；The other end of first inductance is connected with the other end of the second inductance；The other end of first varactor is another with the second varactor
One end is connected, and is used as external voltage control end；First PMOS, the source electrode of the second PMOS meet power vd D；First NMOS tube,
The source electrode of second NMOS tube is connected with one end of harmonic wave selection element, is used as the 3rd output end of delay cell；Harmonic wave selection member
The other end ground connection of part.
2. a kind of orthogonal based on loop configuration according to claim 1 push away-push controlled oscillator, it is characterised in that：Institute
The harmonic wave selection element stated is a transmission line, and length is made up of the oscillator signal second harmonic ripple of loop level Four delay cell
Long 1/4.
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| CN108092929B (en) * | 2017-12-27 | 2020-07-28 | 北京理工大学 | Synchronization method for terahertz communication |
| CN108055226B (en) * | 2017-12-27 | 2020-06-16 | 北京理工大学 | Pseudo code assistance-based synchronization method for terahertz communication |
| CN109540285A (en) * | 2018-10-17 | 2019-03-29 | 天津大学 | Novel heterodyne detector based on substrate integration wave-guide antenna |
| CN110677127B (en) * | 2019-09-06 | 2022-11-25 | 电子科技大学 | Class-F voltage-controlled oscillator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5561398A (en) * | 1995-05-16 | 1996-10-01 | National Semiconductor Corporation | LC-tuned voltage controlled ring oscillator |
| CN103236842A (en) * | 2012-01-12 | 2013-08-07 | 联发科技（新加坡）私人有限公司 | Differential ring oscillator and method for calibrating the differential ring oscillator |
| CN203984394U (en) * | 2014-08-06 | 2014-12-03 | 杭州电子科技大学 | Quadrature based on loop configuration pushes away-pushes controlled oscillator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7876165B2 (en) * | 2009-04-04 | 2011-01-25 | National Taiwan University | Ring-based multi-push voltage-controlled oscillator |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5561398A (en) * | 1995-05-16 | 1996-10-01 | National Semiconductor Corporation | LC-tuned voltage controlled ring oscillator |
| CN103236842A (en) * | 2012-01-12 | 2013-08-07 | 联发科技（新加坡）私人有限公司 | Differential ring oscillator and method for calibrating the differential ring oscillator |
| CN203984394U (en) * | 2014-08-06 | 2014-12-03 | 杭州电子科技大学 | Quadrature based on loop configuration pushes away-pushes controlled oscillator |
Non-Patent Citations (1)
| Title |
|---|
| 太赫兹信号源的固态电路实现-回顾与展望;余志平等;《杭州电子科技大学学报》;20140131;第34卷(第1期);第1-12页 * |
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