Sanghoon Cheon received his BSc, MSc, and PhD degrees in electronics engineering and computer science from the Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea, in 1993, 1995, and 2001, respectively. In 2001, he joined Knowledge*On, Inc., Republic of Korea, where he was involved in the 6-inch InGaP/GaAs HBT foundry service industry. From 2001 to 2003, he worked on large-signal modeling for microwave devices, and from 2004 to 2005, he worked on the development of power amplifiers for WCDMA systems. Since 2006, he has been working as a Principal Researcher in ETRI, Daejeon, Republic of Korea.