A narrow-band high-temperature superconducting filter with wide upper stopband

A narrow-band high-temperature superconducting filter with wide upper stopband

This article presents a novel interdigital capacitor resonator (ICR), which has a high spurious frequency and compact size. A six‐pole high‐temperature superconducting (HTS) bandpass filter (BPF) has been designed and fabricated with this ICR on a double‐sided MgO‐based YBCO thin film. Measurement a...

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Veröffentlicht in:Microwave and optical technology letters 2013-02, Vol.55 (2), p.443-447
Hauptverfasser: Gong, Liming, Wei, Bin, Cao, Bisong, Dong, Shiwei, Dong, Yazhou, Yu, Hongxi, Jun, Li
Format: Artikel
Sprache:eng
Schlagworte:
COMPUTER SIMULATION
COPPER OXIDE
high-temperature superconducting filter
interdigital capacitor resonator
MICROWAVES
narrowband
On-line systems
Reproduction
Simulation
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THIN FILMS
wide stopband
Wideband
YBCO superconductors
YTTRIUM OXIDE
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Zusammenfassung:This article presents a novel interdigital capacitor resonator (ICR), which has a high spurious frequency and compact size. A six‐pole high‐temperature superconducting (HTS) bandpass filter (BPF) has been designed and fabricated with this ICR on a double‐sided MgO‐based YBCO thin film. Measurement at cryogenic temperature shows a fractional bandwidth of 0.4%, and an ultra high spurious passband at about 4.1 f0. Moreover, the measurement shows a good agreement with simulation in wideband response. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:443–447, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27324
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.27324