A new systematic design method based on coupling matrix and non-resonant structure for HTS filters with multiple transmission zeros

• DOI: 10.1088/1361-6668/adc20b
• Publication Date: 2025-03-18T22:54:01Z
• Authors: Qingyu Kong; Xilong Lu; Guangsong Wei; Shigang Zhou; Yuhang Yang; Liguo Zhou; Qingyue Liu; Rui Zhang
• Keywords: Matrix (chemical analysis)

Abstract This paper proposes a new systematic design method based on coupling matrix theory and non-resonant structure for HTS (high-temperature superconducting) filters, which can introduce more transmission zeros (n + X) than the conventional theory. The proposed approach not only introduces at near end of passband through matrix, but also far structure. is realized by grounded microstrip line (GML) structure, exact expression derived equivalent circuit. To demonstrate method, two-order, four-order six-order filters are designed. effectiveness methods verified simulations experiments, with results that closely match theoretical calculations.