Research Output

2014

A low power quadrature class D LC oscillator with 0.4V supply

Bispo, A., Quendera, F., Madeira, R., Oliveira, J. P. A. D. & Oliveira, L. A. B. G. D., 2014, Proceedings of the 21th International Conference on Mixed Design of Integrated Circuits and Systems (MIXDES 2014). p. 121-126

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

A low-voltage LNA and current mode mixer design for energy harvesting sensor node

Correia, J., Mancelos, N., Oliveira, J. P. A. D. & Oliveira, L. A. B. G. D., 2014, Proceedings of the 21th International Conference on Mixed Design of Integrated Circuits and Systems (MIXDES 2014). p. 523-528

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Analog-to-Digital Converters with Embedded IF Mixing Using Variable Reference Voltages

Pereira, N., Goes, J. C. D. P., Oliveira, L. A. B. G. D. & Dinis, R. M. H. D. M., 2014, Circuits and Systems (ISCAS), 2014 IEEE International Symposium on. p. 89-92 6865072

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

A top-down optimization methodology for SC filter circuit design

Santos-tavares, R. M. L., Paulino, N. F. S. V. & DEE Group Author, 1 Jan 2014, 2014 IEEE International Symposium on Circuits and Systems (ISCAS). p. 1672 - 1675

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
5 Citations (Scopus)

A Top-Down Optimization Methodology for SC Filter Circuit Design Using Varying Goal Specifications

Serra, H. A. D. A., Santos-tavares, R. M. L. & Paulino, N. F. S. V., 2014, Technological Innovation for Collective Awareness Systems. Vol. 423. p. 535-542

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
2 Citations (Scopus)

A widely tunable narrowband balun-LNA with integrated filtering

Fernandes, M. D., Oliveira, L. A. B. G. D. & Oliveira, J. P. A. D., 2014, Proceedings of the 21th International Conference on Mixed Design of Integrated Circuits and Systems (MIXDES 2014). p. 160-165 6872177

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Empirical Models for Horizontal Saccadic Eye Movements

Rato, R. T., Palma, L. F. F. D. B. & Batista, A. M. G., 2014, Conference on Human System Interaction. p. 67-70 6860450

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access

Experimental Evaluation of Wide Range Injection Locking in a CMOS RC Oscillator

Ortigueira, E., Oliveira, L. A. B. G. D., Fernandes, J. R. & Silva, M. D. M., 2014, Circuits and Systems (ISCAS), 2014 IEEE International Symposium on. p. 698-701

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access

Near-UV background as a bridge between visible and infrared communication

Vieira, M., Vieira, M. A., Silva, V., Rodrigues, I. & Louro, P., 2014, In : Materials Research Society Symposium Proceedings. 1666

Research output: Contribution to journalConference article

Open Access

On the Dynamic Rounding-off in Analogue and RF Optimal Circuit Sizing

Fino, M. H. S., 1 Jan 2014, In : International Journal Of Electronics. 101, 4, p. 452-468

Research output: Contribution to journalArticle

Open Access
7 Citations (Scopus)
7 Citations (Scopus)

Piezoelectric Energy Harvester for a CMOS Wireless Sensor

Mancelos, N., Correia, J., Pires, L. M., Oliveira, L. A. B. G. D. & Oliveira, J. P. A. D., 2014, IFIP Advances in Information and Communication Technology. Camarinha-Matos, L., Barrento, N. & Mendonça, R. (eds.). Springer Berlin Heidelberg, Vol. 423. p. 470-477

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access

Quadrature Error of Two-Integrator Oscillators

Casaleiro, J. C. F. D. A., Oliveira, L. A. B. G. D. & Filanovsky, I. M., 2014, Circuits and Systems (MWSCAS), 2014 IEEE 57th International Midwest Symposium on. p. 483-486

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Quadrature Relaxation Oscillator with FoM of -165 dBc/Hz

Ortigueira, E., Rabuske, T., Oliveira, L. A. B. G. D., Fernandes, J. R. & Silva, M. D. M., 1 Jan 2014, Circuits and Systems (ISCAS), 2014 IEEE International Symposium on. p. 1372-1375

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Regulated Common-Gate TIA with Noise Improvement for Radiation Detectors

Dias, D. C., Melo, F. S., Oliveira, L. A. B. G. D. & Oliveira, J. P. A. D., 2014, In : Int. J. Microelectronics and Computer Science. 5, 2, p. 69-80

Research output: Contribution to journalArticle

26 Citations (Scopus)

Regulated common-gate transimpedance amplifier for radiation detectors and receivers

Dias, D. C., de Melo, F. S., Oliveira, L. A. B. G. D. & Oliveira, J. P. A. D., 2014, Proceedings of the 21th International Conference on Mixed Design of Integrated Circuits and Systems (MIXDES 2014). p. 540-545 6872260

Research output: Chapter in Book/Report/Conference proceedingConference contribution

SiC pinpin photonic filters for linking the visible spectrum to the telecom gap

Vieira, M., Vieira, M. A., Louro, P., Fantoni, A. & Silva, V., 25 Aug 2014, In : Microelectronic Engineering. 126, p. 179-183 5 p.

Research output: Contribution to journalArticle

Open Access
2 Citations (Scopus)

Stability Improvements in a Rail-to-Rail Input/Output, Constant Gm Operational Amplifier, at 0.4 V Operation, Using the Low-Voltage DTMOS Technique

Correia, J., Mancelos, N. & Goes, J., 2014, Technological Innovation for Collective Awareness Systems - 5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS2014, Proceedings. Springer New York LLC, p. 585-591 7 p. (IFIP Advances in Information and Communication Technology; vol. 423).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
3 Downloads (Pure)

The Design of a Light Barrier System as an Undergraduate Laboratory Project

Pereira, N., Oliveira, L. A. B. G. D. & Paulino, N. F. S. V., 2014, IEEE International Symposium on Circuits and Systems. p. 2425-2428

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Touch Interactive matrix LED display for the Collective Awareness Ecosystem

Querido, F. & Oliveira, J. P. A. D., 2014, IFIP Advances in Information and Communication Technology. p. 610-617

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
2 Citations (Scopus)

Towards Collective Awareness Systems

Camarinha-matos, L. M., Goes, J. C. D. P., Gomes, L. F. D. S. & Martins, J. F. A., 2014, IFIP Advances in Information and Communication Technology. Vol. 423. p. 3–10

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Tuning optical a-SiC/a-Si active filters by UV bias light in the visible and infrared spectral ranges

Vieira, M., Vieira, M. A., Rodrigues, I., Silva, V. & Louro, P., 2014, In : Physica Status Solidi (C) Current Topics In Solid State Physics. 11, 11-12, p. 1674-1677 4 p.

Research output: Contribution to journalArticle

Open Access
5 Citations (Scopus)

Using an integrated inductor model in Qucs

Fino, M. H. S., 1 Jan 2014, Mixed Design of Integrated Circuits & Systems (MIXDES), 2014 Proceedings of the 21st International Conference. p. 66-69

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access

Viability of the use of an a-SiC: H multilayer device in a domestic VLC application

Louro, P., Silva, V., Vieira, M. A. & Vieira, M., 2014, In : Physica Status Solidi (C) Current Topics In Solid State Physics. 11, 11-12, p. 1703-1706 4 p.

Research output: Contribution to journalArticle

Open Access
8 Citations (Scopus)
2015

A 0.7 V 256 μW ΔΣ modulator with passive RC integrators achieving 76 dB DR in 2 MHz BW

De Melo, J. L. A., Goes, J. C. D. P. & Paulino, N. F. S. V., 31 Aug 2015, IEEE Symposium on VLSI Circuits, Digest of Technical Papers. Institute of Electrical and Electronics Engineers Inc., p. C290-C291 7231294

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Citations (Scopus)

A cascode-free single-stage amplifier using a fully-differential folded voltage-combiner

Póvoa, R., Lourenço, N., Horta, N., Santos-Tavares, R. & Goes, J., 25 Feb 2015, 2014 21st IEEE International Conference on Electronics, Circuits and Systems, ICECS 2014. Institute of Electrical and Electronics Engineers Inc., p. 263-266 4 p. 7049972

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

A current-mode VCO-based amplifier-less 2nd-order ΔΣ modulator with over 85dB SNDR

Abdollahvand, S., Paulino, N., Gomes, L. & Goes, J., 27 Jul 2015, 2015 IEEE International Symposium on Circuits and Systems (ISCAS). New York: Institute of Electrical and Electronics Engineers Inc., p. 2037-2040 4 p. 7169077. (IEEE International Symposium on Circuits and Systems; vol. 2015-July).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

A Low Voltage Low Power Temperature Sensor Using a 2nd Order Delta-Sigma Modulator

Quendera, F. & Paulino, N., 2015, 2015 Conference on Design of Circuits and Integrated Systems (DCIS). New York: Institute of Electrical and Electronics Engineers Inc., 7388608

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

A low-voltage voltage-controlled ring-oscillator employing dynamic-threshold-MOS and body-biasing techniques

Abdollahvand, S., Oliveira, L. B., Gomes, L. & Goes, J., 27 Jul 2015, 2015 IEEE International Symposium on Circuits and Systems (ISCAS). New York: Institute of Electrical and Electronics Engineers Inc., Vol. 2015-July. p. 1294-1297 4 p. 7168878. (IEEE International Symposium on Circuits and Systems; vol. 2015-July).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Amplitude and Quadrature Errors of Two-Integrator Oscillator

Casaleiro, J. C. F. D. A., Oliveira, L. A. B. G. D. & Filanovsky, I. M., Sep 2015, In : JOLPE - Journal of Low Power Electronics. 11, 3, p. 340-348 9 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Analysis of a Multi-Ratio Switched Capacitor DC-DC Converter for a Supercapacitor Power Supply

Serra, H. A. D. A., Madeira, R. & Paulino, N. F. S. V., 2015, Technological Innovation for Cloud-Based Engineering Systems, DoCEIS 2015. Camarinha-Matos, L. M., Baldissera, T. A., Di Orio, G. & Marques, F. (eds.). Cham: Springer, p. 477-485 (IFIP Advances in Information and Communication Technology; vol. 450).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Analysis of a noise canceling LNA using a Si2 OpenAccess based tool - CADIT

Alarcão, J. P., Oliveira, L. A. B. G. D., Oliveira, J. P. A. D. & Santos-Tavares, R., 2015, Proceedings of the 22nd International Conference Mixed Design of Integrated Circuits and Systems, MIXDES 2015. Napieralski, A. (ed.). New York: Institute of Electrical and Electronics Engineers Inc., p. 464-469 6 p. 7208564

Research output: Chapter in Book/Report/Conference proceedingConference contribution

A new mismatch-insensitive 1.5-bit MDAC with unity feedback-factor and enhanced performance

Pereira, N., Goes, J., Rodrigues, M. & Faria, P., 25 Feb 2015, 2014 21st IEEE International Conference on Electronics, Circuits and Systems, ICECS 2014. Institute of Electrical and Electronics Engineers Inc., p. 375-378 4 p. 7050000

Research output: Chapter in Book/Report/Conference proceedingConference contribution

A simple class-D audio power amplifier using a passive CT ΣΔ modulator for medium quality sound systems

De Melo, J. L. A., Leitão, P. V., Goes, J. C. D. P. & Paulino, N. F. S. V., 2015, Proceedings of the 22nd International Conference Mixed Design of Integrated Circuits and Systems (MIXDES 2015). Napieralski, A. (ed.). New York: Institute of Electrical and Electronics Engineers Inc., 543 p. 7208582

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Automatic design of high-order SC filter circuits

Serra, H., Santos-Tavares, R. & Goes, J., 27 Jul 2015, 2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-July. p. 1937-1940 4 p. 7169052

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

A voltage-combiners-biased amplifier with enhanced gain and speed using current starving

Povoa, R., Lourenço, N., Horta, N. & Goes, J., 1 Jan 2015, 2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-July. p. 2069-2072 4 p. 7169085

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

CMOS Indoor Light Energy Harvesting System for Wireless Sensing Applications

Ferreira Carvalho, C. M. & Paulino, N. F. S. V., 30 Jul 2015, Springer. 216 p.

Research output: Book/ReportBook

2 Citations (Scopus)

Design and Implementation of Sigma Delta Modulators (ΣΔM) for Class D Audio Amplifiers using Differential Pairs

Pereira, N. & Paulino, N. F. S. V., 2015, Springer International Publishing. (SpringerBriefs in Electrical and Computer Engineering)

Research output: Book/ReportBook

Design of a robust general-purpose low-offset comparator based on IGZO thin-film transistors

Correia, A., Martins, R., Fortunato, E., Barquinha, P. & Goes, J., 27 Jul 2015, 2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-July. p. 261-264 4 p. 7168620

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Design of Switched-Capacitor Filter Circuits using Low Gain Amplifiers

Serra, H. A. D. A. & Paulino, N. F. S. V., 2015, Springer International Publishing. (SpringerBriefs in Electrical and Computer Engineering)

Research output: Book/ReportBook

Domain ontology to support open data analytics for aquaculture

Oliveira, J. P. A. D., Costa, R. M., Lima, J., Sarraipa, J. & Jardim-Gonçalves, R., 2015, KEOD. SciTePress, Vol. 2. p. 344-351 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Error control on spectral data of four-wave mixing based on a-SiC technology

Vieira, M. A., Vieira, M. M. D. A. C., Silva, V., Louro, P. & Barata, M., 1 Jan 2015, In : Physica Status Solidi (C) Current Topics In Solid State Physics. 12, 1-2, p. 181-186 6 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Improving the efficiency of a 2: 1 SC DC-DC converter using the parasitic capacitances

Paulino, N. F. S. V. & Madeira, R., 2015, Design of Circuits and Integrated Systems (DCIS), 2015 Conference on. Institute of Electrical and Electronics Engineers Inc.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Iterative frequency-domain equalization for general QAM constellations with reduced envelope fluctuations through magnitude modulation techniques

Gomes, M., Dinis, R., Silva, V., Cercas, F. & Oliveira, L., 1 Jul 2015, 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 2015. 7145894

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Multi-objective sensitivity-based optimization of analog circuits exploiting NSGA-II front ranking

Pereira, P. M. R., Fino, M. H. S. & DEE Group Author, 1 Jan 2015, n/a. Istanbul, Turkey, p. 1-4

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
3 Citations (Scopus)

Optical processor based on a-SiC technology for spectral data error control

Vieira, M. A., Vieira, M. M. D. A. C., Silva, V. & Louro, P., 1 Oct 2015, In : Microelectronic Engineering. 146, p. 6-10 5 p.

Research output: Contribution to journalArticle