Keum-Won Ha

20 MHz-3 GHz Programmable Chirp Spread Spectrum Generator for a Wideband Radio Jamming Application

Jeong-Geun Kim, Donghyun Baek, Keum-Won Ha, 2014 .

76–81-GHz CMOS Transmitter With a Phase-Locked-Loop-Based Multichirp Modulator for Automotive Radar

Jeong-Geun Kim, Joonhong Park, Donghyun Baek, 2015, IEEE Transactions on Microwave Theory and Techniques.