Novel design of a 2.1-2.9 GHz negative capacitance using a passive non-Foster circuit. - NgocDuc Au; Chulhun Seo (IEICE Electron. Express, 2017)

A design of passive negative shunt inductance circuit using negative group delay network. - NgocDuc Au; Chulhun Seo (IEICE Electron. Express, 2018)

A Microwave Power Transmission System Using Sequential Phase Ring Antenna and Inverted Class F Rectenna. - Danh Manh Nguyen; NgocDuc Au; Chulhun Seo (IEEE Access, 2021)