Hyun-Kyu Yu

An 800-MHz low-power direct digital frequency synthesizer with an on-chip D/a converter

Lee-Sup Kim, Byung-Do Yang, J.-H. Choi, 2004, IEEE Journal of Solid-State Circuits.

Subharmonically pumped CMOS frequency conversion (up and down) circuits for 2-GHz WCDMA direct-conversion transceiver

Hyun-Kyu Yu, Kwang-Jin Koh, Mun-Yang Park, 2004, IEEE Journal of Solid-State Circuits.