A study of injection locking and pulling in oscillators

Injection locking characteristics of oscillators are derived and a graphical analysis is presented that describes injection pulling in time and frequency domains. An identity obtained from phase and envelope equations is used to express the requisite oscillator nonlinearity and interpret phase noise reduction. The behavior of phase-locked oscillators under injection pulling is also formulated.

[1]  E. Norrman The Inductance-Capacitance Oscillator as a Frequency Divider , 1946, Proceedings of the IRE.

[2]  R. Adler A Study of Locking Phenomena in Oscillators , 1946, Proceedings of the IRE.

[3]  F. Brown, Living clocks. , 1959, Science.

[4]  L. J. Paciorek Injection locking of oscillators , 1965 .

[5]  H. E. Rowe,et al.  Signals and Noise in Communication Systems , 1965 .

[6]  H. Stover Theoretical explanation for the output spectra of unlocked driven oscillators , 1966 .

[7]  M. Armand On the output spectrum of unlocked driven oscillators , 1969 .

[8]  I. M. Stephenson,et al.  Injection locking of microwave solid-state oscillators , 1971 .

[9]  Chris J. M. Verhoeven A high-frequency electronically tunable quadrature oscillator , 1992 .

[10]  A. Rofougaran,et al.  A 900 MHz CMOS LC-oscillator with quadrature outputs , 1996, 1996 IEEE International Solid-State Circuits Conference. Digest of TEchnical Papers, ISSCC.

[11]  H. Samueli,et al.  A single-chip 900-MHz spread-spectrum wireless transceiver in 1-μm CMOS. I. Architecture and transmitter design , 1998, IEEE J. Solid State Circuits.

[12]  T. Lee,et al.  Superharmonic injection-locked frequency dividers , 1999, IEEE J. Solid State Circuits.

[13]  Paul R. Gray,et al.  A 1.9-GHz, 1-W CMOS class-E power amplifier for wireless communications , 1999 .

[14]  Ting-Ping Liu A 6.5 GHz monolithic CMOS voltage-controlled oscillator , 1999, 1999 IEEE International Solid-State Circuits Conference. Digest of Technical Papers. ISSCC. First Edition (Cat. No.99CH36278).

[15]  Beomsup Kim,et al.  A low-phase-noise CMOS LC oscillator with a ring structure , 2000, 2000 IEEE International Solid-State Circuits Conference. Digest of Technical Papers (Cat. No.00CH37056).

[16]  A. Bonfanti,et al.  Analysis and design of a 1.8-GHz CMOS LC quadrature VCO , 2002, IEEE J. Solid State Circuits.

[17]  Ali M. Niknejad,et al.  9.6/4.8 GHz dual-mode voltage-controlled oscillator with injection locking , 2006 .