[22] Seunghyun Jang, ...Chang-Wan Kim, ¡¦¡°A 2.6-GHz Partial-Envelope Delta–Sigma-        Digitized Carrier-Bursting Transmitter,¡± IEEE Microwave and Wireless Components        Letters, Vol. 30, No.7, pp. 697-700, July. 2020.

[21] Chang-Wan Kim, et.al., " 470-MHz-to-698-MHz IEEE 802.15.4m Compliant RF CMOS        Transceiver," ETRI Journal, Vol. 40, no. 2, pp. 167-179, Apr. 2018

[20] Chang-Wan Kim, et.al., ""A Low Power Buffer-Feedback Oscillator with Current Reused        Structure," IEICE Trans. Electronics, Vol. E99-C, no. 12, pp. 1335-1338, Dec. 2016.

[19] Chang-WanKim, et.al., ¡°3-Level Envelope Delta-Sigma Modulation RF Signal Generator         for High-Efficiency Transmitters,¡± ETRI Journal, Vol. 36, No. 6, pp. 924-930, Dec. 2014.

[18] Chang-Wan Kim, et.al.,¡°A 900 MHz Zero-IF RF Transceiver for IEEE 802.15.4g SUN        OFDM Systems,¡± ETRI Journal, Vol. 36, No. 3, pp. 352-360, Jun. 2014.

[17] Chang-Wan Kim, et.al., ¡°An IEEE 802.15.4g SUN Compliant MR-OFDM RF CMOS         Transceiver for Smart Grid and CEs,¡± IEEE Transactions on Consumer Electronics,         Vol. 59, No. 3, pp. 460-466, Aug. 2013.

[16] Chang-Wan Kim and Bong-Soon Kang, "A 0.13-um CMOS Ultra-Wideband Low-Noise        Amplifier with High Impedance n-Well Terminals," IEICE Transactions on Electronics ,        Vol.E93-C, No.10,  pp.1536-1539, Oct. 2010.

[15] H.-W. Son and C.-W. Kim, "Improvement of radiation efficiency of radio frequency        identification tag antenna for metallic objects printed on lossy substrate," IET Microwaves,        Antennas & Propagation, Vol.4, Iss.10, pp. 1531-1537, Oct. 2010.

[14] Chang-Wan Kim, Jeong-Yeon Kim, and Bong-Soon Kang, ¡°A 0.13-um CMOS 2,4G-Hz        Low-Noise Balun-Mixer,¡± IEICE Transactions on Electronics , Vol.E92-C, No.9,        pp.1223-1225, Sep. 2009.

[13] Chang-Wan Kim, Hea-Won Son, and Bong-Soon Kang, ¡°A 2.4GHz Current-Reused         CMOS Balun-Mixer,¡± IEEE Microwave and Wireless Components Letters, Vol.19,         No.7, pp. 464-466, July. 2009.

[12] Chang-Wan Kim, Quoc-Hoang Duong, Seung-Sik Lee, and Sang-Gug Lee, ¡°A 0.13um        CMOS  UWB RF Transmitter with an On-Chip T/R Swith,¡± ETRI Journal, Vol.30. No.4,        pp. 526-534, Aug. 2008.

[11] Chang-Wan Kim, Sang-Sung Choi, and Sang-Gug Lee, ¡°A CMOS Frequency Synthesizer        Block for MB-OFDM UWB Systems,¡± ETRI Journal, Vol.29. No.4, pp. 437-444, Aug. 2007.

[10] Seung-Sik Lee, Chang-Wan Kim,Bong-HyukPark, Sang-Sung Choi, Kyoung R. Cho, ¡°A        WiMedia UWB Transceiver for 4-HD Channel Streaming,¡± IEEE Transactions on        Consumer Electronics, Vol. 53, No. 2, May. 2007.

[9] Quoc-Hoang Duong, Chang-Wan Kim, and Sang-Gug Lee, ¡°All CMOS Low-Power Wide-      Gain Range Variable Gain Amplifiers,¡± IEICE Transactions on Electronics Vol.E91-C,      No.5  pp.788-797 MAY 2008

[8] Yuna Shim, Chang-Wan Kim, and Sang-Gug Lee, ¡°Simultaneous Noise and Input Matched      Ultra Wide-band LNA Design,¡± Microwave and Optical Technology Letters Vol.49, No.9,      pp. 2275-2279, Sep. 2007

[7] 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, May. 2006.

[6] Duong.Q.-H, Le.Q, Kim,C.-W, Lee.S-G, ¡°A 95-dB Linear Low-Power Variable Gain      Amplifier,"  IEEE Transaction on Circuits and Systems(Regular paper),Vol.53, No.8,      Aug. 2006

[5] Chang-Wan Kim, 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.

[4] C.-W. Kim, M.-S. Jung, S.-G. Lee, ¡°An Ultra-wideband CMOS Low Noise Amplifier,¡± IEE      Electronics Letters, Vol. 41, No. 7, pp. 384-385, Mar. 2005.

[3] Tuan-Anh Phan, Chang-Wan Kim, Yun-A Shim and Sang-Gug Lee, ¡°Frequency-        Controllable Image Rejection Down CMOS Mixer,¡± IEICE Transactions on Electronics,        Vol. E88-C, No.12, pp. 2322, Dec. 2005.

[2] 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.

[1] Seung-Min Oh, Chang-Wan Kim, and Sang-Gug Lee, ¡°A 74%, 1.56-2.71 GHz, Wide-      tunable      LC-tuned VCO in 0.35um CMOS technology,¡± Microwave and Optical      Technology Letters, Vol. 37, No. 2, pp. 98-100, Apr. 2003.