Characterizing a double-spiralled meander superconducting microstrip delay line using a resonator technique

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We present a novel design of a high temperature superconducting (HTS) delay line, a double-spiralled meander line (DSML). A resonator technique is employed to measure Its properties. The device is fabricated from YBaCuO(123) thin film deposited on both sides of a 2-inch diameter LaAlO3 substrate. A 29-nanosecond delay at 2GHz is reported and It exhibits low Insertion loss for measurement taken at 30K, 60K and 77K, up to 20GHz. To the best of our knowledge, this is the largest delay so far for microstrip on a single 2-inch diameter wafer.


Original languageEnglish
Pages (from-to)135-138
Number of pages4
JournalIEEE MTT-S International Microwave Symposium Digest
Publication statusPublished - 20 Sep 2004
Event2004 IEEE MITT-S International Microwave Symposium Digest - Fort Worth, TX, United States
Duration: 6 Jun 200411 Jun 2004


  • Attenuation, Delay lines, Microstrip resonators, Superconducting device measurements, Transmission lines