RF system level design for a Spectrum Sensing Receiver. - Filipe D. Baumgratz; Sandro B. Ferreira; Sergio Bampi (ICECS, 2013)

Wideband Low Noise Variable Gain Amplifier. - Filipe D. Baumgratz; Hao Li 003; Sergio Bampi; Carlos E. Saavedra (SBCCI, 2015)

A Charge-Sharing Bandpass Filter Topology with Boosted Q-Factor in 40-NM CMOS. - Filipe D. Baumgratz; Sandro B. Ferreira; Michiel Steyaert; Sergio Bampi; Filip Tavernier (SBCCI, 2018)

40-nm CMOS Wideband High-IF Receiver Using a Modified Charge-Sharing Bandpass Filter to Boost Q-Factor. - Filipe D. Baumgratz; Sandro Binsfeld Ferreira; Michiel S. J. Steyaert; Sergio Bampi; Filip Tavernier (IEEE Trans. Circuits Syst. I Regul. Pap., 2018)

Low power 380μW Energy Efficient 1.8 GHz Digitally Controlled Oscillator for IoT Applications. - Mateus Moreira; Lesley Ferreira; Barbara Souza; Sandro B. Ferreira; Filipe D. Baumgratz; Sergio Bampi (ICECS, 2019)

A Wideband Low-Noise Variable-Gain Amplifier With a 3.4 dB NF and up to 45 dB Gain Tuning Range in 130-nm CMOS. - Filipe D. Baumgratz; Carlos E. Saavedra; Michiel Steyaert; Filip Tavernier; Sergio Bampi (IEEE Trans. Circuits Syst. II Express Briefs, 2019)

Review on the Evolution of Low-power and Highly-linear Time-to-Digital Converters - TDC. - Lesley Ferreira; Mateus Moreira; Barbara Souza; Sandro B. Ferreira; Filipe D. Baumgratz; Sergio Bampi (LASCAS, 2020)

Evaluating Cell Library Sizing Methodologies for Ultra-Low Power Near-Threshold Operation in Bulk CMOS. - Rodrigo N. Wuerdig; Vitor G. Lima; Filipe D. Baumgratz; Rafael Soares; Sergio Bampi (LASCAS, 2020)

Design of High-IF Discrete-Time Receivers for IoT: Demystifying Aliasing Trade-Offs. - Sandro Binsfeld Ferreira; Filipe D. Baumgratz; Sergio Bampi; Robert Bogdan Staszewski (IEEE Trans. Circuits Syst. II Express Briefs, 2022)

A 365-µW 915-MHz & 2.45-GHz Flexible Mixer-First Discrete-Time-Receiver Front-End. - Sandro Binsfeld Ferreira; Amir Bozorg; Filipe D. Baumgratz; Sergio Bampi (ISCAS, 2025)