A 54-862 MHz CMOS direct conversion transceiver for IEEE 802.22 cognitive radio applications. - Jongsik Kim; Seung Jun Lee; Seungsoo Kim; Jong Ok Ha; Junki Min; Yun Seong Eo; Hyunchol Shin (CICC, 2009)

A precisely gain controlled RF front end for T-DMB tuner ICs. - Seung Jun Lee; Seung-Hwan Jung; Jong Ok Ha; Hyukjun Oh; Yun Seong Eo (IEICE Electron. Express, 2012)

A 3-5GHz IR-UWB CMOS RF transceiver with RF notch filter. - Jong Ok Ha; Myung Chul Park; Jeong Ho Shin; Yun Seong Eo (IEICE Electron. Express, 2013)