Nam-Jin Oh and Sang-Gug Lee, " A simple model parameter extraction methodology for on-chip spiral inductor ", ETRI Journal, Vol. 28, No. 1, pp. 115-118, Feb. 2006.
Quoc-Hoang Duong and S.-G. Lee, "Wide Dynamic Range Variable Gain Amplifier based on a New Approximated Exponential Equation", IEEE Electronics Letters, vol. 42, No. 23, pp.1319-1320, November. 2006.
Trung-Kien Nguyen, Vladmir Krizhanovskii, Jeongseon Lee, Seok-Kyun Han, Sang-gug Lee, Nae-Soo Kim, and Cheol-Sig Pyo "A Low-Power RF Direct-Conversion Receiver/Transmitter for 2.4-GHz-Band IEEE 802.15.4 Standard in 0.18- μm CMOS Technology ", IEEE Transactions on Microwave Theory and Techniques , Vol.54, No.12, pp4062-4071, December. 2006.
Quoc-Hoang Duong, Quan Le, Chang-Wan Kim, and Sang-Gug Lee "A 95-dB Linear Low-Power Variable Gain Amplifier", IEEE Transactions on Circuits and Systems, Vol.53, No.8,pp.1648-1657 August. 2006.
Chang-Wan Kim, Sang-Gug Lee, "A 5.25-GHz Image Rejection RF Front-End Receiver With Polyphase Filters", IEEE Microwave and Wireless Components Letters,VOL.16,No.5. pp.302-304, May. 2006.
Trung-Kien Nguyen, Nam-Jin Oh, Viet-Hoang Le, and Sang-Gug Lee, "A Low power CMOS Direct Conversion Receiver Front-end with 3-dB NF and 30-kHz Flicker Noise Corner for 915 MHz band IEEE 802.15.4 ZigBee Standard", IEEE Transactions on Microwave Theory and Techniques , Vol. 54, No. 2, pp. 735-741, Feb. 2006.