Su-Jin Seo

Active Inductor Using Feedback Parallel Resonance

Yongchae Jeong, Heungjae Choi, Nam-Sik Ryu, 2006 .

A Design of Frequency Multipliers Using λ/4 Open Composite Right/Left Handed Stub and Left Handed Transmission Line

Jong-Sik Lim, Yongchae Jeong, Heungjae Choi, 2007 .

Design of Variable Active Inductor with Feedback LC-Resonator for Improvement of Q-Factor and Tuning of Operating Frequency

Yongchae Jeong, Heungjae Choi, Nam-Sik Ryu, 2008 .

A Novel Design of FrequencyMultipliers Using Composite Right/Left Handed TransmissionLineand Defected Ground Structure

Jongsik Lim, Su-Jin Seo, 2007 .

HBT Doherty amplifier using ballast resistor control and arbitrary termination impedance power divider

Yong-Chae Jeong, Nam-Sik Ryu, Su-Jin Seo, 2005, 2005 Asia-Pacific Microwave Conference Proceedings.