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 Web-Based Virtual Laboratory System for Electronic and Digital Circuits Experiments. - Dongsik Kim; KwanSun Choi; Changwan Jeon; Jongsik Lim; Sunghwan Kim; Samjoon Seo; Jiyoon Yoo (ICHL, 2009)

Implementation of a Web-based Remote Laboratory for 80196KC Microcontroller. - KwanSun Choi; Saeron Han; Sunghwan Kim; Jongsik Lim; Dongsik Kim; Changwan Jeon; Sunheum Lee; YeonSan Woo; Heunggu Jeon (FECS, 2010)

Implementation of e-Learning Contents for Understanding Fuzzy Logic Controllers. - Dongsik Kim; Sunghwan Kim; KwanSun Choi; Jongsik Lim; Changwan Jeon (FECS, 2010)

A Dual Band High Efficiency Class-F GaN Power Amplifier Using a Novel Harmonic-Rejection Load Network. - Yongchae Jeong; Girdhari Chaudhary; Jongsik Lim (IEICE Trans. Electron., 2012)

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)

Dual-band negative group delay circuit using defected microstrip structure. - Girdhari Chaudhary; Phirun Kim; Junhyung Jeong; Yongchae Jeong; Jongsik Lim (RWS, 2015)

High frequency-selectivity impedance transformer. - Phirun Kim; Girdhari Chaudhary; Junsik Park; Yongchae Jeong; Jongsik Lim (RWS, 2015)