RF Power Amplifiers for Emerging Wireless Communications: Single Branch Vs. Multi-Branch Architectures. - Oualid Hammi; Slim Boumaiza; Jangheon Kim; Sungchul Hong; Ildu Kim; Bumman Kim; Fadhel M. Ghannouchi (CCECE, 2006)

Performance enhancement of linear power amplifier employing digital technique. - Bumman Kim; Jangheon Kim; Jinsung Choi; Ildu Kim (ISCAS, 2008)