Nuno Lourenço

Publication Activity (10 Years)

Years Active: 2005-2024
Publications (10 Years): 52

Top Topics

Monte Carlo Simulation

Polynomial Regression

Integrated Circuit

Top Venues

Publications

Gustavo Liñán Cembrano, Nuno Lourenço, Nuno Horta, José M. de la Rosa
Design Automation of Analog and Mixed-Signal Circuits Using Neural Networks - A Tutorial Brief. IEEE Trans. Circuits Syst. II Express Briefs 71 (3) (2024)
Rafael Vieira, Ricardo Martins, Nuno Horta, Nuno Lourenço
Design Space Exploration of Single-Stage OTAs towards an Ultra-Low-Power LNA for ECG Signals. SMACD (2023)
Ricardo M. F. Martins, Nuno Lourenço
Analog Integrated Circuit Routing Techniques: An Extensive Review. IEEE Access 11 (2023)
André Amaral, António Gusmão, Rafael Vieira, Ricardo Martins, Nuno Horta, Nuno Lourenço
An ANN-Based Approach to the Modelling and Simulation of Analogue Circuits. SMACD (2023)
Rafael Vieira, Fábio Passos, Ricardo Martins, Nuno Horta, Nuno Lourenço
Behavioral Analysis of Noise and Bandwidth Specifications of Heartbeat Detection Circuits for Ultra Low Power Devices. IEEE Access 11 (2023)
Fábio Passos, Nuno Lourenço, Luís Mendes, Ricardo Martins, João Caldinhas Vaz, Nuno Horta
A 23.5-32.5GHz, 17dBm PSAT and 37.5% PAE Power Amplifier Synthesized Using an Automated Design Methodology. SMACD (2023)
Pedro Alves, António Gusmão, Nuno Horta, Nuno Lourenço, Ricardo Martins
ANN-based Analog IC Floorplan Recommender with a Broader Topological Constraints Coverage. SMACD (2022)
Pedro Vaz, António Gusmão, Nuno Horta, Nuno Lourenço, Ricardo Martins
Speeding-Up Complex RF IC Sizing Optimizations with a Process, Voltage and Temperature Corner Performance Estimator based on ANNs. ISCAS (2022)
João Domingues, António Gusmão, Nuno Horta, Nuno Lourenço, Ricardo Martins
Accelerating Voltage-Controlled Oscillator Sizing Optimizations with ANN-based Convergence Classifiers and Frequency Guess Predictors. SMACD (2022)
Luís Mendes, João Caldinhas Vaz, Fábio Passos, Nuno Lourenço, Ricardo Martins
Automatic Design of High-Gain 26.5-to-29.5-GHz Transformer-Less Low-Noise Amplifier 1.86-to-8.87-mW Variants in 65-nm CMOS. ISCAS (2022)
Fábio Passos, Rafael Vieira, António Canelas, Ricardo Póvoa, Nuno Lourenço, Nuno Horta, Jorge Guilherme
A Radiation-Hardened Frequency-Locked Loop On-Chip Oscillator with 33.6ppm/°C Stability for Space Applications. ISCAS (2022)
António Gusmão, Ricardo Póvoa, Nuno Horta, Nuno Lourenço, Ricardo Martins
DeepPlacer: A custom integrated OpAmp placement tool using deep models. Appl. Soft Comput. 115 (2022)
Nuno Lourenço, Fábio Passos, Rafael Vieira, Ricardo Martins, Nuno Horta, Jorge Guilherme, Ricardo Póvoa
Radiation-Hardened Bandgap Voltage and Current Reference for Space Applications with 2.38 ppm/°C Temperature Coefficient. SMACD (2022)
Rafáel Vieira, Fábio Passos, Ricardo Povoa, Ricardo Martins, Nuno Horta, Jorge Guilherme, Nuno Lourenço
Architectural Design for Heartbeat Detection Circuits using Verilog-A Behavioral Modeling. SMACD (2022)
Ricardo Martins, Nuno Lourenço, Ricardo Póvoa, Nuno Horta
Shortening the gap between pre- and post-layout analog IC performance by reducing the LDE-induced variations with multi-objective simulated quantum annealing. Eng. Appl. Artif. Intell. 98 (2021)
António Canelas, Fábio Passos, Nuno Lourenço, Ricardo Martins, Elisenda Roca, Rafael Castro-López, Nuno Horta, Francisco V. Fernández
Hierarchical Yield-Aware Synthesis Methodology Covering Device-, Circuit-, and System-Level for Radiofrequency ICs. IEEE Access 9 (2021)
Luís Mendes, João Caldinhas Vaz, Fábio Passos, Nuno Lourenço, Ricardo Martins
In-Depth Design Space Exploration of 26.5-to-29.5-GHz 65-nm CMOS Low-Noise Amplifiers for Low-Footprint-and-Power 5G Communications Using One-and- Two -Step Design Optimization. IEEE Access 9 (2021)
Engin Afacan, Nuno Lourenço, Ricardo Martins, Günhan Dündar
Review: Machine learning techniques in analog/RF integrated circuit design, synthesis, layout, and test. Integr. 77 (2021)
António Gusmão, Nuno Horta, Nuno Lourenço, Ricardo Martins
Late Breaking Results: Attention in Graph2Seq Neural Networks towards Push-Button Analog IC Placement. DAC (2021)
António Gusmão, Fábio Passos, Ricardo Póvoa, Nuno Horta, Nuno Lourenço, Ricardo Martins
Semi-Supervised Artificial Neural Networks towards Analog IC Placement Recommender. ISCAS (2020)
Ricardo Póvoa, Nuno Lourenço, Ricardo Martins, António Canelas, Nuno Horta, João Goes
A Folded Voltage-Combiners Biased Amplifier for Low Voltage and High Energy-Efficiency Applications. IEEE Trans. Circuits Syst. II Express Briefs (2) (2020)
Ricardo Martins, Nuno Lourenço, Nuno Horta, Shenke Zhong, Jun Yin, Pui-In Mak, Rui Paulo Martins
Design of a 4.2-to-5.1 GHz Ultralow-Power Complementary Class-B/C Hybrid-Mode VCO in 65-nm CMOS Fully Supported by EDA Tools. IEEE Trans. Circuits Syst. (11) (2020)
António Canelas, Ricardo Póvoa, Ricardo Martins, Nuno Lourenço, Jorge Guilherme, João Paulo Carvalho, Nuno Horta
-Means Analog IC Yield Optimization Using Evolutionary-Based Algorithms. IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. 39 (1) (2020)
Ricardo Póvoa, Richa Arya, António Canelas, Fábio Passos, Ricardo Martins, Nuno Lourenço, Nuno Horta
Sub-μW Tow-Thomas based biquad filter with improved gain for biomedical applications. Microelectron. J. 95 (2020)
Fábio Passos, Elisenda Roca, Ricardo Martins, Nuno Lourenço, Saiyd Ahyoune, Javier J. Sieiro, Rafael Castro-López, Nuno Horta, Francisco V. Fernández
Ready-to-Fabricate RF Circuit Synthesis Using a Layout- and Variability-Aware Optimization-Based Methodology. IEEE Access 8 (2020)
Ricardo Póvoa, António Canelas, Ricardo Martins, Nuno Horta, Nuno Lourenço, João Goes
A new family of CMOS inverter-based OTAs for biomedical and healthcare applications. Integr. 71 (2020)
Nuno Lourenço, Ricardo Martins, António Canelas, Ricardo Póvoa, Nuno Horta, Emmanuel Moutaye
Hard and Soft Constraints for Multi-objective Analog IC Sizing Optimization. SMACD (2019)
Ricardo Martins, Nuno Lourenço, Nuno Horta, Jun Yin, Pui-In Mak, Rui Paulo Martins
Many-Objective Sizing Optimization of a Class-C/D VCO for Ultralow-Power IoT and Ultralow-Phase-Noise Cellular Applications. IEEE Trans. Very Large Scale Integr. Syst. 27 (1) (2019)
Nuno Lourenço, Engin Afacan, Ricardo Martins, Fábio Passos, António Canelas, Ricardo Póvoa, Nuno Horta, Günhan Dündar
Using Polynomial Regression and Artificial Neural Networks for Reusable Analog IC Sizing. SMACD (2019)
Ricardo Martins, Nuno Lourenço, Fábio Passos, Ricardo Povoa, António Canelas, Elisenda Roca, Rafael Castro-López, Javier J. Sieiro, Francisco V. Fernández, Nuno Horta
Two-Step RF IC Block Synthesis With Preoptimized Inductors and Full Layout Generation In-the-Loop. IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. 38 (6) (2019)
Ricardo Martins, Nuno Lourenço, Ricardo Póvoa, Nuno Horta
On the Exploration of Design Tradeoffs in Analog IC Placement with Layout-dependent Effects. SMACD (2019)
Daniel Guerra, António Canelas, Ricardo Póvoa, Nuno Horta, Nuno Lourenço, Ricardo Martins
Artificial Neural Networks as an Alternative for Automatic Analog IC Placement. SMACD (2019)
Ricardo Póvoa, António Canelas, Ricardo Martins, Nuno Horta, Nuno Lourenço, João Goes
A Low Noise CMOS Inverter-Based OTA for and Healthcare Signal Receivers. SMACD (2019)
Ricardo Martins, Nuno Lourenço, Nuno Horta, Jun Yin, Pui-In Mak, Rui Paulo Martins
Using EDA Tools to Push the Performance Boundaries of an Ultralow-Power IoT-VCO at 65nm. SMACD (2019)
António Canelas, Ricardo Povoa, Ricardo M. F. Martins, Nuno Lourenço, Jorge Guilherme, Nuno Horta
A 20 DB Gain Two-Stage Low-Noise Amplifier with High Yield for 5 GHz Applications. SMACD (2018)
Ricardo Martins, Nuno Lourenço, Nuno Horta, Jun Yin, Pui-In Mak, Rui Paulo Martins
Design and Optimization of a Class-C/D VCO for Ultra-Low-Power IoT and Cellular Applications. SMACD (2018)
Nuno Lourenço, Joao Rosa, Ricardo Martins, Helena Aidos, António Canelas, Ricardo Povoa, Nuno Horta
On the Exploration of Promising Analog IC Designs via Artificial Neural Networks. SMACD (2018)
Fábio Passos, Ricardo Martins, Nuno Lourenço, Elisenda Roca, Ricardo Povoa, António Canelas, Rafael Castro-López, Nuno Horta, Francisco V. Fernández
Enhanced systematic design of a voltage controlled oscillator using a two-step optimization methodology. Integr. 63 (2018)
Ricardo Povoa, Nuno Lourenço, Ricardo Martins, António Canelas, Nuno Cavaco Gomes Horta, João Goes
Single-Stage Amplifier Biased by Voltage Combiners With Gain and Energy-Efficiency Enhancement. IEEE Trans. Circuits Syst. II Express Briefs (3) (2018)
Tiago Pessoa, Nuno Lourenço, Ricardo Martins, Ricardo Povoa, Nuno Horta
Enhanced analog and RF IC sizing methodology using PCA and NSGA-II optimization kernel. DATE (2018)
Ricardo Povoa, Nuno Lourenço, Ricardo Martins, António Canelas, Nuno Horta, João Goes
Single-Stage OTA Biased by Voltage-Combiners With Enhanced Performance Using Current Starving. IEEE Trans. Circuits Syst. II Express Briefs (11) (2018)
António Canelas, Ricardo Martins, Ricardo Povoa, Nuno Lourenço, Nuno Horta
Efficient yield optimization method using a variable K-Means algorithm for analog IC sizing. DATE (2017)
Ricardo Martins, Nuno Lourenço, António Canelas, Nuno Horta
Stochastic-based placement template generator for analog IC layout-aware synthesis. Integr. 58 (2017)
Jose Cachaco, Nuno Machado, Nuno Lourenço, Jorge Guilherme, Nuno Horta
Automatic technology migration of analog IC designs using generic cell libraries. DATE (2017)
Ricardo Povoa, Ivan Bastos, Nuno Lourenço, Nuno Horta
Automatic synthesis of RF front-end blocks using multi-objective evolutionary techniques. Integr. 52 (2016)
António Canelas, Ricardo Martins, Ricardo Povoa, Nuno Lourenço, Nuno Horta
Yield optimization using k-means clustering algorithm to reduce Monte Carlo simulations. SMACD (2016)
Nuno Lourenço, Ricardo Martins, António Canelas, Ricardo Povoa, Nuno Horta
AIDA: Layout-aware analog circuit-level sizing with in-loop layout generation. Integr. 55 (2016)
Ricardo Martins, António Canelas, Nuno Lourenço, Nuno Horta
On-the-fly exploration of placement templates for analog IC layout-aware sizing methodologies. SMACD (2016)
Andre Ferreira, Nuno Lourenço, Ricardo Martins, Nuno Horta
Automated analog IC design constraints generation for a layout-aware sizing approach. SMACD (2016)
David Neves, Ricardo Martins, Nuno Lourenço, Nuno Horta
Design automation tasks scheduling for enhanced parallel execution of a state-of-the-art layout-aware sizing approach. DATE (2016)
Mrinalinee Pandey, António Canelas, Ricardo Póvoa, Jorge Alves Torres, João Costa Freire, Nuno Lourenço, Nuno Horta
Design and application of a CMOS active inductor at Ku band based on a multi-objective optimizer. Integr. 55 (2016)
Ricardo Martins, Ricardo Povoa, Nuno Lourenço, Nuno Horta
Current-flow and current-density-aware multi-objective optimization of analog IC placement. Integr. 55 (2016)
Nuno Lourenço, Ricardo Martins, Nuno Horta
Layout-aware sizing of analog ICs using floorplan & routing estimates for parasitic extraction. DATE (2015)
Ricardo Martins, Nuno Lourenço, António Canelas, Nuno Horta
Extraction and application of wiring symmetry rules to route analog multiport terminals. ISCAS (2015)
Ricardo Martins, Nuno Lourenço, Nuno Horta
Multi-objective optimization of analog integrated circuit placement hierarchy in absolute coordinates. Expert Syst. Appl. 42 (23) (2015)
Ricardo Povoa, Nuno Lourenço, Nuno Horta, João Goes
A voltage-combiners-biased amplifier with enhanced gain and speed using current starving. ISCAS (2015)
Nuno Lourenço, António Canelas, Ricardo Povoa, Ricardo Martins, Nuno Horta
Floorplan-aware analog IC sizing and optimization based on topological constraints. Integr. 48 (2015)
Ricardo Povoa, Ricardo Lourenco, Nuno Lourenço, António Canelas, Ricardo Martins, Nuno Horta
LC-VCO automatic synthesis using multi-objective evolutionary techniques. ISCAS (2014)
Ricardo Martins, Nuno Lourenço, António Canelas, Nuno Horta
Electromigration-aware analog Router with multilayer multiport terminal structures. Integr. 47 (4) (2014)
Ricardo Povoa, Nuno Lourenço, Nuno Horta, Rui Santos-Tavares, João Goes
A cascode-free single-stage amplifier using a fully-differential folded voltage-combiner. ICECS (2014)
Ricardo Martins, Nuno Lourenço, António Canelas, Nuno Horta
Electromigration-aware and IR-Drop avoidance routing in analog multiport terminal structures. DATE (2014)
Ricardo Martins, Nuno Lourenço, António Canelas, Nuno Horta
Multi-port multi-terminal analog router based on an evolutionary optimization kernel. IEEE Congress on Evolutionary Computation (2013)
Frederico Rocha, Nuno Lourenço, Ricardo Povoa, Ricardo Martins, Nuno Horta
A new metaheuristc combining gradient models with NSGA-II to enhance analog IC synthesis. IEEE Congress on Evolutionary Computation (2013)
Ricardo Martins, Nuno Lourenço, Nuno Horta
LAYGEN II - Automatic Layout Generation of Analog Integrated Circuits. IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. 32 (11) (2013)
Frederico Rocha, Ricardo Martins, Nuno Lourenço, Nuno Horta
Enhancing a Layout-Aware Synthesis Methodology for Analog ICs by Embedding Statistical Knowledge into the Evolutionary Optimization Kernel. DoCEIS (2013)
Ricardo Povoa, Nuno Lourenço, Nuno Horta, Rui Santos-Tavares, João Goes
Single-stage amplifiers with gain enhancement and improved energy-efficiency employing voltage-combiners. VLSI-SoC (2013)
Ricardo Martins, Nuno Lourenço, Nuno Horta
LAYGEN II: automatic analog ICs layout generator based on a template approach. GECCO (2012)
Nuno Lourenço, Nuno Horta
GENOM-POF: multi-objective evolutionary synthesis of analog ICs with corners validation. GECCO (2012)
Nuno Lourenço, Nuno Horta
Laygen - An evolutionary approach to automatic analog IC layout generation. ICECS (2005)