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Miniaturized hairpin superconducting filters for telecommunications applications
Author(s) -
Barra M.,
Cassinese A.,
Cirillo M.,
Jacob M. V.,
Russo R.,
Vaglio R.
Publication year - 2002
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10607
Subject(s) - resonator , microwave , superconductivity , bandwidth (computing) , materials science , electrical engineering , optoelectronics , thin film , electronic engineering , engineering , telecommunications , physics , nanotechnology , condensed matter physics
Abstract Using miniaturized hairpin resonators and following the Chebychev model, we have designed and fabricated superconducting filters with a centre frequency of 2.2 GHz and a bandwidth of 5 MHz. The measured unloaded Q‐factor of the resonator fabricated on LaAlO 3 using YBCO thin film is 47,000 at 60 K. Prototype filters with three and four poles have been realized by using Nb thin films. The measured performances do not show appreciable degradations up to 10 dBm. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 35: 360–362, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10607