A Power Divider with Adjustable Dividing Ratio. - Jongsik Lim; Seongmin Oh; Jae-Jin Koo; Yongchae Jeong; Dal Ahn (IEICE Trans. Electron., 2008)

A Combined Virtual and Remote Laboratory for Microcontroller. - KwanSun Choi; Saeron Han; Sunghwan Kim; Dongsik Kim; Jongsik Lim; Dal Ahn; Changwan Jeon (ICHL, 2009)

A Design of Dual Band Amplifiers Using CRLH Transmission Line Structure. - Jongsik Lim; Yuckhwan Jeon; Sang-Min Han; Yongchae Jeong; Dal Ahn (IEICE Trans. Electron., 2012)