Compact high-order quint-band superconducting band-pass filter<xref rid="cpb_27_6_068503_fn1" ref-type="fn">*</xref><fn id="cpb_27_6_068503_fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 61371009 and 61401282) and the National Key Scientific Instrument and Equipment Development Project of China (Grant No. 2014YQ030975).</p></fn>

Compact high-order quint-band superconducting band-pass filter**

Project supported by the National Natural Science Foundation of China (Grant Nos. 61371009 and 61401282) and the National Key Scientific Instrument and Equipment Development Project of China (Grant No. 2014YQ030975).

Wu Di¹, Wei Bin^{1, †}, Lu Xi-Long², Lu Xin-Xiang³, Guo Xu-Bo¹, Cao Bi-Song¹

(a) Coupling scheme diagram of the proposed quint-band BPF. (b) Frequency response of quint-band BPF with five passbands contributed by two sub-filters.