Quadrature RC-Oscillators: The van der Pol Approach (Analog Circuits and Signal Processing)

This book presents a tutorial review of van der Pol model, a universal oscillator model for the analysis of modern RC-oscillators in weak and strong nonlinear regimes. A detailed analysis of the injection locking in van der Pol oscillators is also presented. The relation between the van der Pol parameters and several circuit implementations in CMOS nanotechnology is given, showing that this theory is very useful in the optimization of oscillator key parameters, such as: frequency, amplitude and phase relationship. The authors discuss three different examples: active coupling RC-oscillators, capacitive coupling RC-oscillators, and two-integrator oscillator working in the sinusoidal regime.

·         Demonstrations the relationship between the van der Pol parameters and several circuit implementations in CMOS nanotechnology, showing that this theory is a powerful tool in the optimization of key oscillator parameters;

·         Provides three circuit prototypes implemented in modern CMOS nanotechnology in the GHz range, with applications in low area, low power, low cost, wireless sensor network (WSN) applications (e.g. IoT, BLE).

João Casaleiro was born in Portugal, in 1977. He received the B.Sc. degree from Instituto Superior de Engenharia de Lisboa (ISEL), Portugal, in 2001 and the Ph.D. degree from Universidade Nova de Lisboa (UNL), in 2015, both in electrical engineering. In 2004, he joined the Instituto Superior de Engenharia de Lisboa (ISEL) where he is currently a Professor. He is a researcher at CTS-UNINOVA since 2009, and his research interests include integrated CMOS receivers, oscillators and mixers. Prof. Casaleiro is an IEEE

Member since 2009, and secretary of the IEEE SSC chapter for the period 2018-2019.