Single-and Dual-Band Bandpass Filters Based on Multiple-Mode Folded Substrate-Integrated Waveguide Cavities - Liu, Qing; Zhang, De-Wei; Gong, Ke; Qian, Hang; Qu, Wei-Zhe; An, Na (IEEE transactions on microwave theory and techniques, 2023)
Keywords: Band-pass filters; Bandpass filter (BPF); Bandpass filters; Controllability; Couplings; dual-band filter; Electromagnetic wave filters; Filtering theory; fold substrate-integrated waveguide (SIW); Metals; Microwave filters; multiple-mode cavity; quad-mode; Resonant frequencies; Resonator filters; Substrate integrated waveguides; Substrates