A monolithic digital chirp synthesizer chip with I and Q channels. - G. Van Andrews; Christopher T. M. Chang; John D. Cayo; Steven Sabin; William A. White 003; Michael P. Harris (IEEE J. Solid State Circuits, 1992)

GaAs HBT's for high-speed digital integrated circuit applications. - Christopher T. M. Chang; Han-Tzong Yuan (Proc. IEEE, 1993)