Dual-Band High-Temperature Superconducting Bandpass Filter Using Dual-Mode Hairpin Ring Resonator

作者：Liu, Haiwen^*; Ren, Baoping; Liu, Fan; Guan, Xuehui; Wen, Pin; Ma, Zhewang

来源：IEEE Transactions on Applied Superconductivity, 2016, 26(7): 1501704.

DOI：10.1109/TASC.2016.2593544

• Bandpass filter (BPF)
• dual-band
• hairpin ring resonator (HRR)
• high-temperature superconducting (HTS)

A compact dual-band high-temperature superconducting (HTS) bandpass filter using a novel hairpin ring resonator (HRR) is presented in this paper. The proposed HRR that provides two controllable resonant modes can be applied to construct dual-band frequency response conveniently. The resonance mechanism of modes and coupling property between resonators are well investigated. Then, four identical HRRs are cascaded for achieving a high-performance dual-band filter. Finally, a fourth-order HTS filter centered at 1.9 and 2.6 GHz is successfully designed and fabricated on MgO substrate with YBCO thin films. The obtained filter has a compact size (occupies only 17.6 mm x 14 mm). The measured results show a high performance and agree well with the simulated ones.

• 出版日期2016-10
• 单位华东交通大学