A single-chip quad-band (850/900/1800/1900 MHz) direct conversion GSM/GPRS RF transceiver with integrated VCOs and fractional-n synthesizer. - Rahul Magoon; Alyosha C. Molnar; Jeff Zachan; Geoff Hatcher; Woogeun Rhee (IEEE J. Solid State Circuits, 2002)

A Fully-Integrated Quad-Band GSM/GPRS CMOS Power Amplifier. - Ichiro Aoki; Scott D. Kee; Rahul Magoon; Roberto Aparicio; Florian Bohn; Jeff Zachan; Geoff Hatcher; Donald McClymont; Ali Hajimiri (IEEE J. Solid State Circuits, 2008)

A 40nm CMOS single-chip 50Gb/s DP-QPSK/BPSK transceiver with electronic dispersion compensation for coherent optical channels. - Diego E. Crivelli; Mario Rafael Hueda; Hugo S. Carrer; Jeff Zachan; Vadim Gutnik; Martin Del Barco; Ramiro R. Lopez; Geoff Hatcher; Jorge M. Finochietto; Michael Yeo; Andre Chartrand; Norman Swenson; et al. (ISSCC, 2012)