Transformer-Based Current-Reuse Armstrong and Armstrong-Colpitts VCOs. - Keum-Won Ha; Hyuk Ryu; Joonhong Park; Jeong-Geun Kim; Donghyun Baek (IEEE Trans. Circuits Syst. II Express Briefs, 2014)

Design of Dual-Mode Local Oscillators Using CMOS Technology for Motion Detection Sensors. - Keum-Won Ha; Jeong-Yun Lee; Jeong-Geun Kim; Donghyun Baek (Sensors, 2018)

Fully Integrated Dual-Mode X-Band Radar Transceiver Using Configurable Receiver and Local Oscillator. - Keum-Won Ha; Jeong-Yun Lee; Goo-Han Ko; Young-Jin Kim; Jeong-Geun Kim; Donghyun Baek (IEEE Access, 2020)