Abstract Locking of oscillators to ultra-stable external sources is paramount importance for improving close-to-carrier phase noise in free running oscillators. In most them, such as Micro-Electro-Mechanical-Systems or LC circuit-based oscillators, the locking frequency range limited by robustness their natural frequency, which comes explicitly related with intrinsic parameters system. this wor...

A new concept for quadrature coupling of LC oscillators is introduced and demonstrated on a 5GHz CMOS VCO. It uses injection-locking through commonmode inductive coupling to enforce quadrature. The technique provides quadrature over a wide tuning range without introducing any phase noiseor power consumption increase. The realized VCO is tunable between 4.6GHz and 5.2GHz and measures a phase noi...

A phase-locked clock and data recovery circuit incorporates a multiphase LC oscillator and a quarter-rate bang-bang phase detector. The oscillator is based on differential excitation of a closed-loop transmission line at evenly spaced points, providing half-quadrature phases. The phase detector employs eight flip-flops to sample the input every 12.5 ps, detecting data transitions while retiming...

Propagating and standing fronts between Hopfand Turing-type domains are observed experimentally on a one-dimensional array of resistively coupled nonlinear LC-oscillators describable by a two-component reaction-diffusion equation. Numerical and experimental results are compared in particular with respect to front velocities. In the neighbourhood of a codimension-two point two coupled Ginzburg-L...

We study the manner in which the effect of quasiperiodic modulation is transmitted in a coupled nonlinear dynamical system. A system of Rössler oscillators is considered, one of which is subject to driving, and the dynamics of other oscillators which are, in effect, indirectly forced is observed. Strange nonchaotic dynamics is known to arise only in quasiperiodically driven systems, and thus th...

Statistical properties of integrated passive LC delay lines are investigated. A new variation using spiral inductors and vertical parallel plate (VPP) capacitors is introduced whose delay is primarily determined by the lateral dimensions, resulting in very accurate and repeatable delays. An MIM-based version of this line is also fabricated for comparison. Additionally, LC delay-based oscillator...

Networks of coupled LC oscillators that do not share a common ground node are studied. Both resistive coupling and inductive considered. For networks under coupling, it is shown the oscillator-coupler interconnection has to be bilayer if oscillator voltages asymptotically synchronize. Also, for architecture (when both couplers present) method proposed compute complex-valued effective Laplacian ...

The single chip micro-mote () is a 2×3 mm single-chip crystal-free mote-on-chip. implements the IEEE802.15.4 and BLE standards can communicate with off-the-shelf radios compliant to those standards. exclusively uses on-chip oscillators, including 2.4 GHz LC oscillator synthesize communication frequency, 2 MHz RC clock rate. challenge that drifts at 2,100 ppm over temperature range of 45∘C, far ...