Compact Dual-Band Negative Group Delay Circuit. - Nathan B. Gurgel; Glauco Fontgalland; Isaac Barros; Blaise Ravelo (RWS, 2024)

HP-NGD Circuit Theory With Generalized Exponential Kernel Fractional Derivative-Based Impedances. - Rawid Banchuin; Noa Willys; Sonia Moussa; Nathan B. Gurgel; Damien Ali Hamada Fakra; Lagouge Tartibu; Marcellin Atemkeng; Glauco Fontgalland; Sébastien Lalléchère; Blaise Ravelo (IEEE Access, 2026)

Experimentation of Bandpass NGD Inductorless Integrated Circuit Designed With 180-nm CMOS Technology RC-Network. - Long Wang; Jiarun Xu; Fayu Wan; Xiaohe Chen; Nathan B. Gurgel; Lagouge Tartibu; Dmitry Kholodnyak; Glauco Fontgalland; Blaise Ravelo (IEEE Trans. Circuits Syst. II Express Briefs, 2026)