Power-Combining Transformer Techniques for Fully-Integrated CMOS Power Amplifiers. - Kyu Hwan An; Ockgoo Lee; Hyungwook Kim; Dong Ho Lee; Jeonghu Han; Ki Seok Yang; Younsuk Kim; Jaejoon Chang; Wangmyong Woo; Chang-Ho Lee; Haksun Kim; Joy Laskar (IEEE J. Solid State Circuits, 2008)

An EDGE/GSM Quad-Band CMOS Power Amplifier. - Woonyun Kim; Ki Seok Yang; Jeonghu Han; Jaejoon Chang; Chang-Ho Lee (IEEE J. Solid State Circuits, 2014)