Practical Design Method of Distributed-Element Reflectionless Bandstop Filters. - Jongheun Lee; Juseop Lee (ICEIC, 2021)

Transmission-Line Bandpass Filter Structures With Infinite Reflectionless Range. - Jongheun Lee; Juseop Lee (IEEE Trans. Circuits Syst. I Regul. Pap., 2022)

All-Port-Reflectionless Narrowband Filtering Power Divider Topology With Generic Equations. - Boyoung Lee; Jongheun Lee; Gyuwon Lee; Juseop Lee (IEEE Trans. Circuits Syst. I Regul. Pap., 2022)

Dual-Mode Waveguide Cavity Filters and Diplexer With Fractional Bandwidths Around 0.2%. - Jongheun Lee; Seong-Wook Jeong; Boyoung Lee; Myeong Shin Lee; Juseop Lee (ICEIC, 2023)

Transmission-Line Schematic for Harmonic-Controlled Bandpass Filters. - Jongheun Lee; Minhyup Song; Juseop Lee (IEEE Access, 2023)

Resonator Reuse Approach for Implementing Narrowband Bandpass-Bandstop Cascade Based on Mode Orthogonality. - Boyoung Lee; Gyuwon Lee; Jongheun Lee; Juseop Lee (IEEE Trans. Circuits Syst. II Express Briefs, 2023)

Practical Circuit-Based Design Approach for Waveguide Lowpass Filter With Extremely Steep Skirt Response. - Sanggu Lee; Jongheun Lee; Duckki Baek; Pilyong Lee; Juseop Lee (IEEE Access, 2024)

K-Band Waveguide Resonator Bandpass Filter Structure With Adjustable Transmission Zeros for Producing Various Symmetric and Asymmetric Responses. - Sanggu Lee; Jongheun Lee; Boyoung Lee; Jaehwan Lim; Jaesub Han; Juseop Lee (IEEE Access, 2025)