Research Output 1993 2019

2019

A 0.9-V Analog-to-Digital Acquisition Channel for an IoT Water Management Sensor Node

Serra, H., Bastos, I., De Melo, J. L. A., Oliveira, J. P., Paulino, N., Nefzaoui, E. & Bourouina, T., 1 Oct 2019, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 66, 10(SI), p. 1678-1682 5 p., 8789645.

Research output: Contribution to journalArticle

Water management
Sensor nodes
Capacitors
Water
Bandpass filters

A Low Noise CMOS Inverter-Based OTA for and Healthcare Signal Receivers

Póvoa, R., Canelas, A., Martins, R. M. F., Horta, N., Lourenço, N. & Goes, J., 1 Jul 2019, SMACD 2019 - 16th International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, Proceedings. Institute of Electrical and Electronics Engineers Inc., p. 161-164 4 p. 8795248

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

Signal receivers
Operational amplifiers
Inverter
transconductance
low noise

A Multi-branch Linear Amplification with Nonlinear Components Technique

Guerreiro, J., Dinis, R., Montezuma, P., Oliveira, J. P. & Silva, M., 2 Jan 2019, 2018 IEEE Military Communications Conference, MILCOM 2018. Institute of Electrical and Electronics Engineers Inc., p. 888-892 5 p. 8599732. (IEEE Military Communications Conference; vol. 2019-October).

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

Amplification
Modulation
Nonlinear distortion
Power amplifiers
Orthogonal frequency division multiplexing
Evolutionary algorithms
Modulators
Thermal noise
Linear equations
Genetic algorithms

Built-in self test of high speed analog-to-digital converters

Santin, E., Oliveira, L. B. & Goes, J., 1 Dec 2019, In : IEEE Instrumentation and Measurement Magazine. 22, 6, p. 4-10 7 p., 8917897.

Research output: Contribution to journalArticle

self tests
Built-in self test
analog to digital converters
Digital to analog conversion
high speed

Characterization and optimization of an inductive DC-DC converter for ultra-low power energy harvesting

Batista, D., Oliveira, L. & Santos, P. M. D., 1 May 2019, Proceedings - 2019 International Young Engineers Forum, YEF-ECE 2019. Institute of Electrical and Electronics Engineers Inc., p. 77-82 6 p. 8740825

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

Power Harvesting
DC-DC Converter
Energy Harvesting
Photovoltaic cells
Energy harvesting

Combined Organic Photovoltaic Cells and Ultra Low Power CMOS Circuit for Indoor Light Energy Harvesting

Batista, D., Oliveira, L. B., Paulino, N., Carvalho, C., Oliveira, J. P., Farinhas, J., Charas, A. & Dos Santos, P. M., 15 Apr 2019, In : Sensors (Basel, Switzerland). 19, 8

Research output: Contribution to journalArticle

Semiconductors
Halogens
Photovoltaic cells
Energy harvesting
photovoltaic cells

Experimental characterization of the TOFPET2 ASIC

Bugalho, R., Di Francesco, A., Ferramacho, L., Leong, C., Niknejad, T., Oliveira, L., Rolo, M., Silva, J. C., Silva, R., Silveira, M., Tavernier, S. & Varela, J., 29 Mar 2019, In : Journal of Instrumentation. 14, 3, P03029.

Research output: Contribution to journalArticle

application specific integrated circuits
Application specific integrated circuits
Full width at half maximum
silicon radiation detectors
Radiation Detectors
1 Citation (Scopus)

Indoor positioning and intuitive advertising using visible light communication

Vieira, M. A., Vieira, M. A., Louro, P., Fantoni, A. & Vieira, P., 1 Jan 2019, Physics and Simulation of Optoelectronic Devices XXVII. Osinski, M., Witzigmann, B. & Arakawa, Y. (eds.). SPIE-International Society for Optical Engineering, 1091217. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 10912).

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

positioning
Positioning
Light emitting diodes
optical communication
Marketing
1 Citation (Scopus)
Radio Frequency Identification Device
Oxides
Zinc Oxide
Radio frequency identification (RFID)
Indium
1 Citation (Scopus)

Sixth-order differential Sallen-and-Key switched capacitor LPF using a-IGZO TFTs

Wadhwa, N., Bahubalindruni, P. G., Chapagai, K., Goes, J., Deb, S. & Barquinha, P., Jan 2019, In : International Journal of Circuit Theory and Applications. 47, 1, p. 33-42

Research output: Contribution to journalArticle

Switched capacitor filters
Capacitor
Capacitors
Filter
Electric power utilization
1 Citation (Scopus)

Using Modified Bessel Functions for Analysis of Nonlinear Effects in a MOS Transistor Operating in Moderate Inversion

Filanovsky, I. M., Oliveira, L. B. & Tchamov, N. T., 1 May 2019, In : IEEE Transactions on Circuits and Systems I: Regular Papers. 66, 5, p. 1897-1907 11 p., 8602361.

Research output: Contribution to journalArticle

Bessel functions
MOSFET devices
Electric potential
Intermodulation
Drain current
2018
1 Citation (Scopus)
Switched capacitor filters
Networks (circuits)
Operational amplifiers
Water management
Electric potential
DC-DC converters
Networks (circuits)
Electric potential
Sensor nodes
Conversion efficiency

A High-resolution Δ-Modulator ADC with Oversampling and Noise-shaping for IoT

Correia, A., Barquinha, P., Marques, J. & Goes, J., 8 Aug 2018, PRIME 2018 - 14th Conference on Ph.D. Research in Microelectronics and Electronics. Institute of Electrical and Electronics Engineers Inc., p. 33-36 4 p. 8430338

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

Delta modulation
Modulators
modulators
delta modulation
Bandwidth
2 Citations (Scopus)
2 Downloads (Pure)

A Voltage Controlled Oscillator Using IGZO Thin-Film Transistors

Keragodu, T., Tiwari, B., Nishtha, Bahubalindruni, P., Goes, J. & Barquinha, P., 26 Apr 2018, 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-May. 8351175

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

Open Access
File
Relaxation oscillators
Variable frequency oscillators
Thin film transistors
Oxide films
Networks (circuits)

Challenges in teaching electrical circuit analysis to millennials

Fino, M. H., 27 Dec 2018, 3rd International Conference of the Portuguese Society for Engineering Education, CISPEE 2018. Institute of Electrical and Electronics Engineers Inc., 8593460

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

Circuit theory
Electric network analysis
Teaching
Students
advanced course
2 Citations (Scopus)

Characterization of the residual self-interference power in full-duplex wireless systems

Irio, L., Oliveira, R. & Oliveira, L., 26 Apr 2018, 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-May. 8351260

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

Radio interference
Phase noise
Communication systems
4 Citations (Scopus)

Continuous-Time Delta-Sigma Modulators Based on Passive RC Integrators

de Melo, J. L. A., Paulino, N. & Goes, J., Nov 2018, In : IEEE Transactions on Circuits and Systems I: Regular Papers. 65, 11, p. 3662-3674

Research output: Contribution to journalArticle

Modulators
Smart sensors
Energy efficiency
Genetic algorithms
Bandwidth
2 Citations (Scopus)

Cooperative vehicular communication systems based on visible light communication

Vieira, M. A., Vieira, M., Louro, P. & Vieira, P., 1 Jul 2018, In : Optical Engineering. 57, 7, 076101.

Research output: Contribution to journalArticle

optical communication
telecommunication
Communication systems
vehicles
emitters

Current Mode Sigma-Delta Modulators Designed for Amperometry Based Medical Sensors

Sniatala, P., Kropidlowski, M., Szczesny, S., Goes, J., Paulino, N. & Oliveira, J. P., 24 Oct 2018, 2018 International Conference on Signals and Electronic Systems, ICSES 2018 - Proceedings. Stepien, J. & Machowski, W. (eds.). Institute of Electrical and Electronics Engineers Inc., p. 47-52 6 p. 8507330

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

Modulators
modulators
Computer hardware description languages
sensors
Sensors
1 Citation (Scopus)

Energy efficient micro-machined thermal flow-rate sensor based on transient operation mode

Shaun, F., Sarkar, S., Ali, H., Poulichet, P., Peressutti, F., Marty, F., Bourouina, T., Nefzaoui, E. & Oliveira, J. P., 22 Jun 2018, Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS, DTIP 2018. Marcelli, R., Mita, Y., Smith, S., Pressecq, F., Nouet, P., Mailly, F. & Schneider, P. (eds.). Institute of Electrical and Electronics Engineers Inc., p. 1-3 3 p.

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

flow velocity
Flow rate
sensors
Sensors
energy consumption
4 Citations (Scopus)

Experimental results with TOFPET2 ASIC for time-of-flight applications

Bugalho, R., Di Francesco, A., Ferramacho, L., Leong, C., Niknejad, T., Oliveira, L., Pacher, L., Rolo, M., Rivetti, A., Silveira, M., Silva, J. C., Silva, R., Tavernier, S. & Varela, J., 1 Jan 2018, (Accepted/In press) In : Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 14 p.

Research output: Contribution to journalArticle

application specific integrated circuits
Application specific integrated circuits
Full width at half maximum
silicon radiation detectors
chips
15 Downloads (Pure)

Experimental set-up for an IoT power supply with an 130 nm SC DC-DC converter

Madeira, R., Correia, N., Oliveira, J. P. & Paulino, N., 1 Jan 2018, Technological Innovation for Resilient Systems - 9th IFIP WG 5.5/SOCOLNET Advanced Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2018, Proceedings. Camarinha-Matos, L. M., AduKankam, K. O. & Julashokri, M. (eds.). Springer New York LLC, p. 205-213 9 p. (IFIP Advances in Information and Communication Technology; vol. 521).

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

Open Access
File
DC-DC converters
Energy efficiency
Capacitors
Energy harvesting
Electric potential
2 Citations (Scopus)

Fine-grained indoor localization: optical sensing and detection

Vieira, M. A., Vieira, M. A., Louro, P., Fantoni, A. & Vieira, P. M. A. C., 1 Jan 2018, Optical Sensing and Detection V. Berghmans, F. & Mignani, A. G. (eds.). SPIE-International Society for Optical Engineering, 106800H. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 10680).

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

Optical Sensing
Light emitting diodes
Navigation System
Navigation systems
Transmitter
time domain analysis
Time domain analysis
Amorphous silicon
amorphous silicon
Silver
2 Citations (Scopus)

Generic Model for Multi-Phase Ring Oscillators

Pereira, P. C., Pinto, A. C., Oliveira, L. B. & Fernandes, J. R., 26 Apr 2018, 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 8351777. (IEEE International Symposium on Circuits and Systems; vol. 2018-May).

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

Open Access
File
Cathode ray oscilloscopes
Integrated circuits
Transistors
Networks (circuits)
Monte Carlo simulation
3 Citations (Scopus)

Light-emitting diodes aided indoor localization using visible light communication technology

Vieira, M., Vieira, M. A., Louro, P. & Vieira, P., 1 Aug 2018, In : Optical Engineering. 57, 8, 087105.

Research output: Contribution to journalArticle

Light emitting diodes
optical communication
light emitting diodes
Transmitters
Communication

Live Demonstration: An Automated Test Bench for an 130nm SC DC-DC Converter

Madeira, R., Correia, N., Oliveira, J. P. & Paulino, N., 26 Apr 2018, 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 8351862. (IEEE International Symposium on Circuits and Systems; vol. 2018-May).

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

DC-DC converters
Demonstrations
Electric potential
Capacitors
Visualization

On the use of modified Biolek window for Memristor modeling in VerilogA

Fino, M. H. S. & Pina, T. M. R., 22 Jun 2018, Proceedings of the 25th International Conference "Mixed Design of Integrated Circuits and System", MIXDES 2018. IEEE, p. 63-66 4 p.

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

Memristors
2 Citations (Scopus)

On the use of visible light communication in cooperative vehicular communication systems

Vieira, M. A., Vieira, M. A., Louro, P. & Vieira, P., 1 Jan 2018, Next-Generation Optical Communication Components, Sub-Systems, and Systems VII. Zhou, X. & Li, G. (eds.). SPIE-International Society for Optical Engineering, 105610T. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 10561).

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

Vehicular Communications
Cooperative Communication
Communication Systems
optical communication
telecommunication
1 Citation (Scopus)

Optical vehicular communication based on a-SiC:H technology

Vieira, M. A., Vieira, M., Louro, P. & Vieira, P., 1 Jan 2018, (Accepted/In press) In : Science and Technology of Materials.

Research output: Contribution to journalArticle

Communication
Lighting
Headlights
Demultiplexing
Optical gain
8 Citations (Scopus)

Single-Stage Amplifier Biased by Voltage Combiners with Gain and Energy-Efficiency Enhancement

Povoa, R., Lourenço, N., Martins, R., Canelas, A., Horta, N. C. G. & Goes, J., 1 Mar 2018, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 65, 3, p. 266-270 5 p.

Research output: Contribution to journalArticle

Energy efficiency
Topology
Networks (circuits)
Electric potential
Feedback

The impact of phase-noise on the communication system receivers

Ribeiro, A., Irio, L., Oliveira, L. & Oliveira, R., 29 May 2018, Proceedings - 2018 International Young Engineers Forum, YEF-ECE 2018. Institute of Electrical and Electronics Engineers Inc., p. 55-60 6 p.

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

Phase noise
Communication systems
Orthogonal frequency division multiplexing
Bit error rate
Modulation
1 Downloads (Pure)

Using Modified Bessel Functions for Calculations of Drain Current Harmonics in a MOS Transistor Operating in Moderate Inversion

Filanovsky, I. M., Oliveira, L. B. & Tchamov, N. T., 26 Apr 2018, 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-May. 8350949. (IEEE International Symposium on Circuits and Systems; vol. 2018-May).

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

File
Bessel functions
Drain current
MOSFET devices
Electric potential
Intermodulation

Vehicular visible light communication: A road-to-vehicle proof of concept

Vieira, M. A., Vieira, M. A., Louro, P. & Vieira, P., 2018, Optical Sensing and Detection V. Berghmans, F. & Mignani, A. G. (eds.). SPIE-International Society for Optical Engineering, 106800J. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 10680).

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

roads
optical communication
vehicles
communication
Vehicular Communications
2 Citations (Scopus)

Visible light communication technology for fine-grained indoor localization

Vieira, M. A., Vieira, M. A., Louro, P., Fantoni, A. & Vieira, P., 2018, Optical Interconnects XVIII. Schroder, H. & Chen, R. T. (eds.). SPIE-International Society for Optical Engineering, 105380A. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 10538).

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

optical communication
Diode
Transmitter
Positioning
Light emitting diodes
2017

A 3rd order MASH switched-capacitor ΣΔM using ultra incomplete settling employing an area reduction technique

Fouto, D. & Paulino, N., 25 Sep 2017, 2017 IEEE International Symposium on Circuits and Systems (ISCAS): From Dreams to Innovation. IEEE, 8050370. (IEEE International Symposium on Circuits and Systems; vol. Sep-2017).

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

Clocks
Capacitors
Bandwidth
Resistors
Modulators
2 Citations (Scopus)

A 50 Hz SC notch filter for IoT applications

Serra, H., Oliveira, J. P. & Paulino, N., 25 Sep 2017, 2017 IEEE International Symposium on Circuits and Systems (ISCAS): From Dreams to Innovation. IEEE, 8050904. (IEEE International Symposium on Circuits and Systems; vol. September-2017).

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

Notch filters
Capacitors
Sampling
Water management
Sensor nodes
3 Citations (Scopus)
Switched capacitor filters
Switches
Frequency response
Networks (circuits)
Passive filters

A Robust Fully-Dynamic Residue Amplifier for Two-Stage SAR Assisted Pipeline ADCs

Singh, S., Bahubalindruni, P. & Goes, J., 2017, In : 2017 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS). 8050490.

Research output: Contribution to journalArticle

1 Citation (Scopus)

A simple LDO with adaptable bias for internet of things applications

Filanovsky, I. M., Oliveira, L. B., Tchamov, N. T. & Ivanov, V. V., 2017, IEEE International Symposium on Circuits and Systems: From Dreams to Innovation, ISCAS 2017 - Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 8050540

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

Open Access
Networks (circuits)
Transistors
Electric potential
Bias currents
Internet of things
6 Citations (Scopus)

A Third-Order MASH Σ Δ Modulator Using Passive Integrators

Nowacki, B., Paulino, N. & Goes, J., 1 Nov 2017, In : IEEE Transactions on Circuits and Systems I: Regular Papers. 64, 11, p. 2871-2883 13 p., 7935461.

Research output: Contribution to journalArticle

Operational amplifiers
Modulators
Bandwidth
Processing

A two-step radio receiver architecture fully embedded into a charge-sharing SAR ADC

Pereira, N., Serra, H. & Goes, J., 25 Sep 2017, IEEE International Symposium on Circuits and Systems: From Dreams to Innovation, ISCAS 2017 - Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 8050563

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

Radio receivers
FIR filters
Sampling
Networks (circuits)
4 Citations (Scopus)

Coupled data transmission and indoor positioning by using transmitting trichromatic white LEDs and a SiC optical MUX/DEMUX mobile receiver

Vieira, M. M. D. A. C., Vieira, M. A., Vieira, P. M. A. C. & Louro, P., 2017, Optical Sensors 2017. Spie -- the Int Soc for Optical Engineering, Vol. 10231. 102310G

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

data transmission
Data Transmission
Data communication systems
positioning
Positioning

Design methodology for an all CMOS bandgap voltage reference circuit

Madeira, R. & Paulino, N., 2017, Technological Innovation for Smart Systems - 8th IFIP WG 5.5/SOCOLNET Advanced Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2017, Proceedings. Springer New York LLC, Vol. 499. p. 439-446 8 p. (IFIP Advances in Information and Communication Technology; vol. 499).

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

Open Access
Temperature
Design methodology
Internet of things
Sensor
Coefficients
2 Citations (Scopus)

Fractional harmonic distortion calculation using simplified 'reconciliation' model for a MOST operating in moderate inversion

Filanovsky, I. M., Oliveira, L. B. & Tchamov, N. T., 2017, 2017 IEEE 60th International Midwest Symposium on Circuits and Systems, MWSCAS 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2017-August. p. 755-758 4 p. 8053033

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

Open Access
Drain current
Harmonic distortion
Bessel functions
Taylor series
Electric potential
10 Citations (Scopus)

Indoor positioning system using a WDM device based on a-SiC: H technology

Vieira, M. A., Louro, P., Mateus, L., Vieira, P. & Vieira, M. M. D. A. C., Nov 2017, In : Journal of Luminescence. 191, p. 135-138 4 p.

Research output: Contribution to journalArticle

Open Access
Wavelength division multiplexing
positioning
Light emitting diodes
Transmitters
Technology

Introduction to the special issue on PRIME 2016 and SMACD 2016

Horta, N., Baschirotto, A., Fernández, F. V., Dundar, G., Goes, J. & Fernandes, J., Jun 2017, In : Integration, the VLSI Journal. 58, p. 411-412 2 p.

Research output: Contribution to journalEditorial

Open Access