Analysis of Oscillators Locked by Large Injection Signals: Generalized Adler's Equation and Geometrical Interpretation

Mirzaei, Ahmad; Heidari, M.E.; Abidi, A.A.

doi:10.1109/cicc.2006.320928

Cited by 44 publications

(24 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The more practically-inclined Adler ( [2]) re-visited these differential equations for the special case of weak injection, and found expressions for the frequency range over which it locks the oscillator. Recent work [3] generalizes Adler's results to large injections. Other work [4][5] [6] formulates pulling and locking in more precise mathematical terms, but while the results may help in the development of better simulators, they leave design engineers wanting for a simple, fast, and handy method to see how an oscillator responds to various possible injections.…”

Section: Introductionmentioning

confidence: 74%

“…The differential current flowing into the LC tank is then i = sgn(v out )I 0 , where sgn is the signum function. The two injection currents can always be decomposed into differential and common mode parts, and since the common mode is only important with a large nonlinear output capacitance when it converts AM into PM [3], it is neglected here. We assume that pulling arises mainly from the differential component.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Behavioral models of frequency pulling in oscillators

Heidari

Abidi

2007

2007 IEEE International Behavioral Modeling and Simulation Workshop

View full text Add to dashboard Cite

Based on the state equations of an RLC circuit and hard-limiting characteristics of a transconductor a method is introduced to study and simulate the pulling effect in differential LC oscillators. This method includes phase and amplitude disturbances all at once. The model is validated by measurement results and an example is given to illustrate the application of this method in verifying the real circuits.

show abstract

Section: Introductionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Behavioral models of frequency pulling in oscillators

Heidari

Abidi

2007

2007 IEEE International Behavioral Modeling and Simulation Workshop

View full text Add to dashboard Cite

show abstract

“…III. INJECTION LOCKING Injection-locking phenomenon has recently gained considerable attention in on-chip applications [8]- [11]. The impact of injection locking in phase noise reduction in onchip applications is studied previously [9], [10].…”

Section: Clock Jittermentioning

confidence: 99%

Low-power bufferless resonant clock distribution networks

Mesgarzadeh

Hansson

Alvandpour

2007

2007 50th Midwest Symposium on Circuits and Systems

View full text Add to dashboard Cite

The major design challenges toward a highly powerefficient bufferless resonant clock distribution network is discussed. The presented discussion is supported by measurements on three different clock distribution networks implemented in a test chip fabricated in 0.13-µm standard CMOS process. In addition to presenting a detailed power comparison between these networks and the conventional buffer-driven scheme, the clock jitter characteristic in bufferless clock distribution is discussed. Furthermore, injection-locking phenomenon is utilized to suppress datadependent jitter and to achieve a low-jitter clock distribution.

show abstract

“…As the VCO inherent frequency is sweeping with time, the average beat frequency can be obtained by replacing in (13) and (15) with and shown as…”

Section: B Sensing Principlementioning

confidence: 99%

A novel RF sensing circuit using injection locking and frequency demodulation for cognitive radio applications

Wang

Horng

et al. 2009

2009 IEEE MTT-S International Microwave Symposium Digest

View full text Add to dashboard Cite

Abstract-A novel RF sensing circuit for a cognitive radio to sense spectral environment is proposed using injection locking and frequency demodulation techniques. The research starts with deriving a generalized locking equation for oscillators as a theoretical basis, and then develops the sensing principle and circuit architecture to a practical and useful level. To accurately evaluate the sensing performance, a discrete time approach is investigated to compute the sensed output signal. In the experiments, a prototype circuit is designed in the 2.4-GHz industrial-scientific-medical band to cover a sensing frequency range from 2.4 to 2.484 GHz. The spectrum scanning over the 84-MHz bandwidth is accomplished in less than 1 ms. The experimental results agree quite well with the theoretical predictions, showing that the proposed RF sensing circuit can fast and reliably detect frequency and power for analog and digital modulation signals.

show abstract

Analysis of Oscillators Locked by Large Injection Signals: Generalized Adler's Equation and Geometrical Interpretation

Cited by 44 publications

References 7 publications

Behavioral models of frequency pulling in oscillators

Behavioral models of frequency pulling in oscillators

Low-power bufferless resonant clock distribution networks

A novel RF sensing circuit using injection locking and frequency demodulation for cognitive radio applications

Contact Info

Product

Resources

About