CN106059576B - A kind of design method of twice frequency oscillator - Google Patents
A kind of design method of twice frequency oscillator Download PDFInfo
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- CN106059576B CN106059576B CN201610380557.1A CN201610380557A CN106059576B CN 106059576 B CN106059576 B CN 106059576B CN 201610380557 A CN201610380557 A CN 201610380557A CN 106059576 B CN106059576 B CN 106059576B
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- oscillator
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- phaselocked loop
- locking
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000013461 design Methods 0.000 title claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 230000003993 interaction Effects 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 abstract description 10
- 238000004891 communication Methods 0.000 abstract description 9
- 238000011161 development Methods 0.000 description 4
- 229920000106 Liquid crystal polymer Polymers 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
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- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
The present invention discloses a kind of design method of single-frequency phaselocked loop realization twice frequency oscillator, is related to microwave technical field.The twice frequency oscillator that the single-frequency phaselocked loop is realized includes two single-frequency oscillators, a phaselocked loop, a loop filter, realizes that the locking of two frequencies to obtain stable double-frequency oscillation signal, is realized easy simultaneously in conjunction with phaselocked loop and injection locking technique.The characteristics of twice frequency oscillator design scheme, is to realize multifrequency locking, reduction complexity density, simplied system structure using single-frequency phaselocked loop.The twice frequency oscillator system has frequency flexibility, is suitable for complex communication system, the carrier wave of high quality is provided for it.
Description
Technical field
The present invention relates to microwave technical fields, and in particular to a kind of single-frequency phaselocked loop realizes the design side of twice frequency oscillator
Method.
Background technology
With the high speed development of Modern Communication System, frequency spectrum resource is more crowded, and modern wireless communication systems needs have
Frequency flexibility, for complex communication system, exploitation can work at the same time the microwave device energy in two or even multiple frequency ranges
Its circuit area is enough reduced, circuit cost is reduced, is conducive to the system integration, is adapted to the high performance system hair of miniaturization lightness
Exhibition trend.Therefore, the two-frequency operation of microwave device becomes one of the hot subject of current microwave regime.Oscillator is microwave communication
The critical component of system, under multimode/multifrequency pattern of Modern Communication System, the development of twice frequency oscillator is to systematic entirety energy
It plays a crucial role.
Document " Design of a dual frequency oscillator for simultaneous multi-
band radio communication on a multi-layer liquid crystalline polymer
Substrate (Bavisi A, Sundaram V, Swaminathan M, et al., 2006IEEE Radio and
Wireless Symposium.2006:A cobasis type negative resistance oscillator 431-434.) " is reported, using a second order resonance
Device and a quadravalence resonator generate two resonant frequencies, using the passive device of multilayer liquid crystal polymer matrix film development to oscillation
Device carries out double frequency frequency stabilization, since the limited Q values realized by liquid crystal polymer material and thin slice technique carry out frequency stabilization, mutually makes an uproar
Performance is poor, and cost is higher.
Document " Concurrent dual-frequency oscillators and phase-locked loops
(Goel,A.,Hashemi,H.,IEEE Transactions on Microwave Theory and Techniques,
2008,56(8):1846-1860.) " by the twice frequency oscillator of active device and quadravalence resonant tank Parallel Design, and by double
Ring phaselocked loop locks twice frequency oscillator frequency of oscillation respectively.It is double that the structure also needs to design while designing twice frequency oscillator
Ring phaselocked loop realizes that the locking of double frequency, implementation method are more complex under two external reference signals.
Document " A distributed dual-band LC oscillator based on mode switching (Li
G,Afshari E.,IEEE Transactions on Microwave Theory and Techniques,2011,59(1):
A kind of Low phase noise, distribution, changeable double frequency LC oscillators 99-107.) " are reported, is shaken by switching two manifold type LC
The coupled capacitor in device is swung to realize the switching of strange mould and even mould.Although the tuning range of oscillator up to several octaves,
It is that the oscillator realizes the switching of two frequencies using switch, the output signal of two frequencies cannot be provided simultaneously.
External aspect is concentrated mainly on the research of twice frequency oscillator the possibility for inquiring into double frequency output, analyzes active device
Part nonlinear characteristic and resonance circuit exponent number shake for double frequency in terms of domestic to the stability influence etc. of twice frequency oscillator
The research for swinging device is also less, therefore under Modern Communication System multimode/multifrequency demand, to simple in structure, output frequency is flexible, tool
There is the development of the twice frequency oscillator of high stability to be of great significance.
Invention content
For the prior art, the purpose of the present invention is to provide the design sides that a kind of single-frequency phaselocked loop realizes twice frequency oscillator
Method.By being appropriately arranged with the working frequency of single-frequency oscillator, enable to meet required double frequency output；Pass through appropriately designed locking phase
Another oscillator locking is made the oscillator by the output of one of oscillator by ring structure using injection locking technique
Frequency spectrum embodies the former spectral change rule, and the output signal is further inputted phaselocked loop, then the control generated with phaselocked loop
The former oscillator of semaphore lock, and then the phase of two oscillators is made to lock, to provide stable two-frequency signal.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of single-frequency phaselocked loop realizes the design method of twice frequency oscillator, principle topology such as Fig. 1 of the twice frequency oscillator
Shown, the design method includes the following steps：
Step 1, the working frequency f for determining required two-frequency signalo1, fo2；
Step 2, the working frequency f for determining the first oscillator 1 and the second oscillator 21With f2, it is made to meet mf1≈nf2,
Middle m, n are harmonic order, non-linear related with active device；And the working frequency f of the twice frequency oscillatoro1, fo2It is institute
State the working frequency f of the first oscillator1With the working frequency f of the second oscillator2Linear combination；
The output signal part of first oscillator 1 is coupled and is injected into the second oscillator 2 by step 3, is locked by injection
The n order harmonics of theory, the second oscillator of m order harmonics pair 2 of the first oscillator 1 will produce frequency pulling, to make the second oscillation
The working frequency of device 2 changes with the variation of the first oscillator 1, that is, embodies the frequency variation characteristics of the first oscillator 1；
The output signal of second oscillator 2 is partly coupled in phaselocked loop by step 4, the control generated using phaselocked loop
The first oscillator of semaphore lock 1；
Step 5, the first oscillator 1 is locked after part output signal be injected into the second oscillator 2, shake due to first
It swings device 1 to be locked, therefore the second oscillator 2 can be also locked；
Step 6, the first oscillator 1 and the second oscillator 2 after locking generate mixing, in turn under nonlinear interaction
Required two-frequency signal f can be obtainedo1、fo2；
Step 7, the size that harmonic power is controlled by harmonic wave principle of adjustment and control, in required harmonic frequency fo1、fo2Place obtains institute
The power output needed；
By above-mentioned seven steps, the method completes the locking that single-frequency phaselocked loop realizes twice frequency oscillator.
The beneficial effects of the invention are as follows：
(1) single-frequency phaselocked loop of the present invention realizes the design method of twice frequency oscillator, is using two single-frequency oscillators
Any dual-frequency high-quality signal is can get, design is simple, and flexibility is high, and the local oscillator for being suitable for modern microwave communication system designs.
(2) in the design method of single-frequency phaselocked loop realization twice frequency oscillator of the present invention, the work frequency of single-frequency oscillator
Rate, which is chosen, has flexibility.
(3) it in the design method of single-frequency phaselocked loop realization twice frequency oscillator of the present invention, is combined and is noted with single-frequency phaselocked loop
Enter the theoretical realization multifrequency locking of locking, reduces complexity density, simplifies system structure, method is simple, while easily controllable
It adjusts.
Description of the drawings
Fig. 1 single-frequency phaselocked loops of the present invention realize the principle topological diagram of twice frequency oscillator.
Fig. 2 single-frequency phaselocked loops of the present invention realize the embodiment principle topological diagram of twice frequency oscillator
Specific implementation mode
Embodiment
Principle topology such as Fig. 2 institutes provided in this embodiment based on twice frequency oscillator obtained by design method of the present invention
Show, the free oscillation frequency of two single-frequency oscillators is respectively f1≈ 2.4GHz and f2≈ 1.8GHz, the signal section of oscillator 1
It is injected into oscillator 2, theoretical according to injection locking, the triple-frequency harmonics wave of oscillator 1 generates frequency to the four-time harmonic of oscillator 2
Rate is drawn, and so that the working frequency of oscillator 2 is changed with the working frequency of oscillator 1, further by the part signal coupling of oscillator 2
It closes in phaselocked loop, since oscillator 2 can reflect the working condition of oscillator 1,2 coupling of oscillator under frequency pulling effect
Corresponding control signal can be generated by closing the signal of phaselocked loop, be input to its oscillation frequency after loop filtering in oscillator 1
Rate is locked at 2.4GHz.The frequency of oscillation of oscillator 1 is f at this time1-locked=2.4GHz.Theoretical, the oscillation according to injection locking
The output signal part of device 1 is injected into oscillator 2, under the nonlinear interaction of active device, the triple-frequency harmonics wave of oscillator 1
Frequency pulling will be generated to the four-time harmonic of oscillator 2 and finally by the four-time harmonic Frequency Locking of oscillator 2 in oscillator 1
Third harmonic frequencies at, i.e. 4f2-locked=7.2GHz, correspondingly, oscillator 2 are locked, that is, have f2-locked=1.8GHz.
Include frequency under the nonlinear interaction of oscillator, in the mixed frequency signal of the twice frequency oscillator it is f1-lockedAnd
f1-locked+2f2-lockedSpectrum component, its watt level is controlled by harmonic wave principle of adjustment and control, in required harmonic frequency
f1-locked、f1-locked+2f2-lockedPlace obtains power output appropriate, to obtain stable two-frequency signal fo1=f1-locked
=2.4GHz, fo2=f1-locked+2f2-locked=6GHz.
It should be noted that exported two-frequency signal is f in the present embodimento1=2.4GHz, fo2=6GHz, the embodiment
Equally achievable mf1-locked±nf2-lockedRate-adaptive pacemaker, i.e., arbitrary harmonic wave after active device non-linear frequency mixing point
Amount.Meanwhile needed for it can meet under the premise of harmonic wave, as long as the free oscillation frequency of single-frequency oscillator meets mf1≈nf2
Also required two-frequency signal can be realized.There is flexibility, same double frequency output signal also to have for the frequency of oscillation selection of single-frequency oscillator
There is flexibility.
Claims (2)
1. a kind of design method of twice frequency oscillator, specifically includes following steps：
Step 1, the working frequency f for determining required two-frequency signalo1, fo2；
Step 2, the working frequency f for determining the first oscillator (1) and the second oscillator (2)1With f2, it is made to meet mf1≈nf2,
Middle m, n are harmonic order；And the working frequency f of the twice frequency oscillatoro1, fo2It is the working frequency f of first oscillator1
With the working frequency f of the second oscillator2Linear combination；
The output signal part of first oscillator (1) is coupled and is injected into the second oscillator (2) by step 3, is locked by injection
The n order harmonics of theory, the second oscillator of m order harmonics pair (2) of the first oscillator (1) will produce frequency pulling；
The output signal of second oscillator (2) is partly coupled in phaselocked loop by step 4, is believed using the control that phaselocked loop generates
Number locking the first oscillator (1)；
Part output signal after first oscillator (1) locking is injected into the second oscillator (2) by step 5, realizes that second shakes
Swing the locking of device (2)；
Step 6, the first oscillator (1) after locking and the second oscillator (2), the mixed frequency signal generated under nonlinear interaction
In i.e. include required two-frequency signal fo1、fo2；
Step 7, the size that harmonic power is controlled by harmonic wave principle of adjustment and control, in required harmonic frequency fo1、fo2Place obtains required
Power output.
2. the design method of twice frequency oscillator according to claim 1, further comprising the steps of：The phaselocked loop and first
It is connected by a loop filter between oscillator (1).
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| CN201610380557.1A CN106059576B (en) | 2016-06-01 | 2016-06-01 | A kind of design method of twice frequency oscillator |
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| CN201610380557.1A CN106059576B (en) | 2016-06-01 | 2016-06-01 | A kind of design method of twice frequency oscillator |
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| CN106059576B true CN106059576B (en) | 2018-10-16 |
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| CN110149115A (en) * | 2019-03-28 | 2019-08-20 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Reduce the method for synthesization radio frequency system two-way phase-locked loop frequency traction |
| CN110784178B (en) * | 2019-10-28 | 2021-05-11 | 东南大学 | Broadband injection locking frequency multiplier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588929A (en) * | 1983-05-25 | 1986-05-13 | Rca Corporation | Power supply and deflection circuit providing multiple scan rates |
| US6380812B1 (en) * | 1999-09-08 | 2002-04-30 | Texas Instruments Incorporated | Dual-oscillator trim method |
| CN1985437A (en) * | 2004-07-13 | 2007-06-20 | 皇家飞利浦电子股份有限公司 | Modulator comprising a dual-frequency oscillator and a synthesizer |
-
2016
- 2016-06-01 CN CN201610380557.1A patent/CN106059576B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588929A (en) * | 1983-05-25 | 1986-05-13 | Rca Corporation | Power supply and deflection circuit providing multiple scan rates |
| US6380812B1 (en) * | 1999-09-08 | 2002-04-30 | Texas Instruments Incorporated | Dual-oscillator trim method |
| CN1985437A (en) * | 2004-07-13 | 2007-06-20 | 皇家飞利浦电子股份有限公司 | Modulator comprising a dual-frequency oscillator and a synthesizer |
Non-Patent Citations (2)
| Title |
|---|
| Injection Locking in Concurrent;Ankush Goel 等;《IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES》;20080831;第56卷(第8期);第116-119页 * |
| 一种用于DC-DC转换器的双频振荡电路的设计;耿永涛 等;《四川省电了学会半导体与集成技术专委会2006年度学术年会论文》;20061231;第1834-1845页 * |
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