Hsu, C.-I.G.C.-I.G.HsuLI-MIN WANGChen, L.-S.L.-S.ChenLee, C.-H.C.-H.Lee2018-09-102018-09-102007http://www.scopus.com/inward/record.url?eid=2-s2.0-34248377393&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/331080Cross-coupled YBCO BPFs with wide upper stopband using quarter-wavelength stepped-impedance resonatorsjournal article2-s2.0-34248377393