Keum-Won Ha

A dual-mode signal generator using PLL for X-band radar sensor applications

Jeong-Yun Lee, Donghyun Baek, Sangyong Park, 2017, 2017 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).

A Multi-mode Spread-Spectrum Clock Generator

Donghyun Baek, Hyuk Ryu, Keum-Won Ha, 2012 .

Low-power quadrature voltage-controlled oscillator using current-reuse and transformer-based Armstrong topologies

Donghyun Baek, Hyuk Ryu, Keum-Won Ha, 2016 .

Transformer-Based Current-Reuse Armstrong and Armstrong–Colpitts VCOs

Jeong-Geun Kim, Joonhong Park, Donghyun Baek, 2014, IEEE Transactions on Circuits and Systems II: Express Briefs.

Low Phase Noise Series-coupled VCO using Current-reuse and Armstrong Topologies

Donghyun Baek, Hyuk Ryu, Keum-Won Ha, 2017 .

Design of Dual-Mode Local Oscillators Using CMOS Technology for Motion Detection Sensors

Jeong-Geun Kim, Jeong-Yun Lee, Donghyun Baek, 2018, Sensors.

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.

A fully integrated 33.8-dBm bulk CMOS T/R switch with a negative-voltage switch controller

Jeong-Geun Kim, Jeong-Yun Lee, Donghyun Baek, 2013 .

Fully Integrated Dual-Mode X-Band Radar Transceiver Using Configurable Receiver and Local Oscillator

Young-Jin Kim, Donghyun Baek, Goo-Han Ko, 2020, IEEE Access.

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

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

$G_{m}$ -Boosted Complementary Current-Reuse Colpitts VCO With Low Power and Low Phase Noise

Donghyun Baek, Hyuk Ryu, Keum-Won Ha, 2014, IEEE Microwave and Wireless Components Letters.