Synthesis Design of Filtering Differential Phase Shifters of Independently Suppressed Harmonics. - Lei-Lei Qiu; Lei Zhu 009 (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

Wideband Balanced Filters With Intrinsic Common-Mode Suppression on Coplanar Stripline-Based Multimode Resonators. - Zhao-An Ouyang; Lei Zhu 009; Lei-Lei Qiu (IEEE Trans. Circuits Syst. I Regul. Pap., 2022)

Synthesis Design of Dual-Band Differential Phase Shifters With Independent Filtering Passbands and Predetermined Phase Shifts. - Lei-Lei Qiu; Lei Zhu 009 (IEEE Trans. Ind. Electron., 2022)

Circularly polarized patch antenna with simultaneously wide frequency tuning range and high gain performance. - Lianwen Deng; Long Liu; Daohan Zhou; Chao Tang; Shengxiang Huang; Xiaohui Gao; Lei-Lei Qiu (Int. J. Commun. Syst., 2023)

Broadband Linear Polarization Converter Based on Slot-Line Loaded Structure for Pre-Determined Notched Band. - Lei-Lei Qiu; Yueyang Wu; Pin Zhang; Yawen Liu; Shengxiang Huang; Lianwen Deng (IEEE Trans. Circuits Syst. II Express Briefs, 2023)

Third-order filtering crossover using dual-mode resonator for high-isolated channels. - Lei-Lei Qiu; Yiming Guo; Lei Zhu 009; Zhao-An Ouyang; Shengxiang Huang; Lianwen Deng (Int. J. Commun. Syst., 2024)

Signal-interference-based quasi-reflectionless bandpass filter for wideband and high-selectivity. - Yiming Guo; Lei-Lei Qiu; Lianwen Deng; Yueyang Wu; Yumin Wang; Shengxiang Huang (Int. J. Circuit Theory Appl., 2024)