1. Department of Materials Science and Engineering; Korea Advanced Institute of Science and Technology (KAIST); 291 Daehak-ro Yuseong-gu Daejeon 305-701 Republic of Korea
2. Department of Electrical Engineering and Computer Science; Seoul National University; 1 Gwanak-ro, Gwanak-gu Seoul 151-742 Republic of Korea
3. The 4th Research and Development Institute-4; Agency for Defense Development (ADD); Yuseong P.O. Box 35-44 Daejeon 305-600 Republic of Korea
4. Ceracomp Co., Ltd; 42 Baekseokgongdan 1-ro, Seobuk-gu, Cheonan-si; Chungcheongnam-do 331-979 Republic of Korea