Systematic design of continuous-time ΣΔ modulator with VCO-based quantizer. - Wagdy M. Gaber; Mootaz Allam; Hassan Aboushady; Marie-Minerve Louërat; El-Sayed Eid (ISCAS, 2010)

A CMOS IQ direct digital RF modulator with embedded RF FIR-based quantization noise filter. - Wagdy M. Gaber; Piet Wambacq; Jan Craninckx; Mark Ingels (ESSCIRC, 2011)

A CMOS IQ Digital Doherty Transmitter using modulated tuning capacitors. - Wagdy M. Gaber; Piet Wambacq; Jan Craninckx; Mark Ingels (ESSCIRC, 2012)