Hyeon-Won Cha

Design of a Cascaded Distributed Amplifier using Medium Power Devices

Jong-Sik Lim, Dal Ahn, Hyeon-Won Cha, 2009 .

A New Asymmetric Branch Line Hybrid Coupler without Ground Contact Problem of DGS

Jong-Sik Lim, Dal Ahn, Yongchae Jeong, 2008 .

Design of a New Balanced Power Amplifier Utilizing the Reflected Input Power

Sang-Min Han, Jong-Sik Lim, Dal Ahn, 2009 .