Journal ArticleDOI
A study of injection locking and pulling in oscillators
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In this paper, an identity obtained from phase and envelope equations is used to express the requisite oscillator nonlinearity and interpret phase noise reduction, and the behavior of phase-locked oscillators under injection pulling is also formulated.Abstract:
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.read more
Citations
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Journal ArticleDOI
Mutual phase-locking of microwave spin torque nano-oscillators
Shehzaad Kaka,Matthew R. Pufall,William H. Rippard,Thomas J. Silva,Stephen E. Russek,Jordan A. Katine +5 more
TL;DR: It is shown that two STNOs in close proximity mutually phase-lock—that is, they synchronize, which is a general tendency of interacting nonlinear oscillator systems.
Journal ArticleDOI
Injection locking and phase control of spin transfer nano-oscillators.
William H. Rippard,Matthew R. Pufall,Shehzaad Kaka,Thomas J. Silva,Stephen E. Russek,Jordan A. Katine +5 more
TL;DR: Time-domain measurements show that the phase of the spin transfer oscillations varies over a range of approximately +/-90 degrees relative to the input, in good agreement with general theoretical analysis of injection locking of nonlinear oscillators.
Journal ArticleDOI
The Quadrature LC Oscillator: A Complete Portrait Based on Injection Locking
TL;DR: It is shown that the quadrature LC oscillator is best treated as two strongly coupled, nominally identical oscillators that are locked to the same frequency.
Journal ArticleDOI
A UWB CMOS transceiver
Behzad Razavi,Turgut Aytur,C. Lam,Fei-Ran Yang,Kuang-Yu Li,Ran-Hong Yan,Han-Chang Kang,Cheng-Chung Hsu,Chao-Cheng Lee +8 more
TL;DR: In this article, a direct-conversion ultra-wideband (UWB) transceiver for Mode 1 OFDM applications employs three resonant networks and three phase-locked loops using a common-gate input stage, the receiver allows direct sharing of the antenna with the transmitter.
Journal ArticleDOI
Spin-Transfer Torque Devices for Logic and Memory: Prospects and Perspectives
Xuanyao Fong,Yusung Kim,Karthik Yogendra,Deliang Fan,Abhronil Sengupta,Anand Raghunathan,Kaushik Roy +6 more
TL;DR: This paper provides a review of different mechanisms that manipulate the state of a nano-magnet using current-induced spin-transfer torque and demonstrates how such mechanisms have been engineered to develop device structures for energy-efficient on-chip memory and logic.
References
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Journal ArticleDOI
A Study of Locking Phenomena in Oscillators
TL;DR: In this paper, a differential equation is derived which gives the oscillator phase as a function of time, and with the aid of this equation, the transient process of "pull-in" as well as the production of distorted beat note are described in detail.
Journal ArticleDOI
A study of locking phenomena in oscillators
TL;DR: In this article, a differential equation is derived which gives the oscillator phase as a function of time, and with the aid of this equation, the transient process of "pull-in" as well as the production of distorted beat note are described in detail.
Book
Design of integrated circuits for optical communications
TL;DR: This book systematically takes the reader from basic concepts to advanced topics, establishing both rigor and intuition in the design of high-speed integrated circuits for optical communication systems.
Journal ArticleDOI
Injection locking of microwave solid-state oscillators
TL;DR: Injection locking of microwave solid-state oscillators is discussed in this article, based on the familiar theorem that the total impedance times the current is equal to the applied voltage, based on which the locking range, large-signal injection, locking stability, and AM and FM noise are analyzed.
Proceedings ArticleDOI
A 900 MHz CMOS LC-oscillator with quadrature outputs
TL;DR: In this article, the authors present a 900 MHz oscillator circuit implemented in 1 /spl mu/m CMOS that affords modestly low-phase noise, has variable frequency with large output swing, and provides quadrature-phase outputs from two identical coupled oscillators, connected in such a way that they exert a mutual squelch when their relative phase is not in Quadrature.