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  • Nam-Jin Oh and S.G.Lee, "Current Reused LC VCOs", IEEE Microwave and Wireless Components Letters, Vol. 15, No. 11, pp. 736-738, Nov. 2005.
  • Nam-jin Oh and S.G.Lee, "11-GHz CMOS Differential VCO with Back-gate Transformer Feedback", IEEE Microwave and Wireless Components Letters, Vol. 15, No. 11, pp. 733-735, Nov. 2005.
  • Trung-Kien Nguyen, Seok-Kyun Han, and Sang-Gug Lee, "Ultra-Low-Power 2.4 GHz Image-Rejection Low-Noise Amplifier", Electronics Letters, Vol.41, No.15, pp842-843, Jul. 2005.
  • C.-W. Kim, M.-S. Jung, S.-G. Lee, "An Ultra-wideband CMOS Low Noise Amplifier", IEEE Electronics Letters, Vol. 41, No. 7, pp. 384-385, Mar. 2005.
  • Choong-Yul Cha and Sang Gug Lee, "A Complementary Colpitts Oscillator in CMOS Technology", IEEE Transactions on Microwave Theory and Techniques, Vol. 53, No. 3, pp. 1-8, Mar. 2005.
  • Chang-Wan Kim, Min-suk Kang, Phan Tuan Anh, Hoon-Tae Kim, and Sang-Gug Lee," An Ultra-Wideband CMOS Low Noise Amplifier for 3 ~ 5 GHz UWB System", IEEE Journal of Solid-State Circuits, Vol. 40, No. 2, pp. 544-547, Feb. 2005.
  • Tuan-Anh Phan, Chang-Wan Kim, Yun-A Shim, and Sang-Gug Lee, " A High Performance CMOS Direct Down Conversion Mixer For UWB System ", IEICE Transactions on Electronics, Vol. E88-C, No .12 pp. 2316, Dec. 2005.
  • Nam-Jin Oh and Sang-Gug Lee, "Building a 2.4-GHz Radio transceiver using IEEE 802.15.4", IEEE Circuits and Devices Magazine, Vol. 21, No. 6, pp. 43-51, Nov./Dec. 2005.
  • Nam-Jin Oh, Jinho Ko, and Sang-Gug Lee, "A CMOS 868/915-MHz Direct Conversion ZigBee Single-chip Radio", IEEE Communications Magazine, Vol. 43, No. 12, pp. 100-109, Dec. 2005.
  • Trung-Kien Nguyen, Nam-Jin Oh, Choong-Yul Cha, Yong-Hun Oh, Gook-Ju Ihm, and Sang-Gug Lee, "Image-Rejection CMOS Low Noise Amplifier Design Optimization Techniques", IEEE Transactions on Microwave Theory and Techniques, Vol. 53, No. 2, pp. 538-547, Feb. 2005.