Many-objective sizing optimization of a class-C/D VCO for ultralow-power IoT and ultralow-phase-noise cellular applications

R Martins, N Lourenço, N Horta, J Yin… - … Transactions on Very …, 2018 - ieeexplore.ieee.org
In this paper, the performance boundaries and corresponding tradeoffs of a complex dual-
mode class-C/D voltage-controlled oscillator (VCO) are extended using a framework for the …

AIDA: Layout-aware analog circuit-level sizing with in-loop layout generation

N Lourenço, R Martins, A Canelas, R Povoa, N Horta - Integration, 2016 - Elsevier
This paper presents AIDA, an analog integrated circuit design automation environment,
which implements a design flow from a circuit-level specification to physical layout …

[图书][B] Automatic analog IC sizing and optimization constrained with PVT corners and layout effects

N Lourenço, R Martins, N Horta - 2017 - Springer
Over the past few decades, very large scale integration technologies have been widely
improved, allowing the proliferation of consumer electronics and enabling the steady growth …

Parasitic-aware GP-based many-objective sizing methodology for analog and RF integrated circuits

T Liao, L Zhang - 2017 22nd Asia and South Pacific Design …, 2017 - ieeexplore.ieee.org
In this paper, an efficient parasitic-aware geometric programming and many-objective
evolution algorithm based two-phase hybrid sizing methodology is presented. It considers …

AIDA: Robust layout-aware synthesis of analog ICs including sizing and layout generation

R Martins, N Lourenço, A Canelas… - … and Applications to …, 2015 - ieeexplore.ieee.org
This paper presents AIDA 2015, the newest version of AIDA, an analog integrated circuit
design automation environment, which implements a design flow from a circuit-level …

Automatic synthesis of RF front-end blocks using multi-objective evolutionary techniques

R Povoa, I Bastos, N Lourenço, N Horta - Integration, 2016 - Elsevier
Typically the design of a Radio-Frequency (RF) circuit is difficult, time-consuming and often
based around an iterative process. In this manuscript, an automatic synthesis of three typical …

Optimising operational amplifiers by evolutionary algorithms and gm/Id method

E Tlelo-Cuautle… - International Journal of …, 2016 - Taylor & Francis
The evolutionary algorithm called non-dominated sorting genetic algorithm (NSGA-II) is
applied herein in the optimisation of operational transconductance amplifiers. NSGA-II is …

Enhanced systematic design of a voltage controlled oscillator using a two-step optimization methodology

F Passos, R Martins, N Lourenço, E Roca, R Povoa… - Integration, 2018 - Elsevier
In this paper a design strategy based on bottom-up design methodologies is used in order to
systematically design a voltage controlled oscillator. The methodology uses two computer …

A folded voltage-combiners biased amplifier for low voltage and high energy-efficiency applications

R Póvoa, N Lourenço, R Martins… - … on Circuits and …, 2019 - ieeexplore.ieee.org
The topic of this brief is a single-stage amplifier biased by a doublet of voltage-combiners in
a folded configuration, in order to be supplied by a power source of 1.2 V, maintaining …

Current-flow and current-density-aware multi-objective optimization of analog IC placement

R Martins, R Povoa, N Lourenço, N Horta - Integration, 2016 - Elsevier
In this paper, the concept of hierarchical multi-objective optimization is applied to analog
integrated circuit placement automation, where current-flow and current-density …