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

Author

Su, Hieng Tiong ; Wang, Yi ; Huang, Frederick ; Lancaster, Michael

Author_Institution

Sch. of Eng., Birmingham Univ., UK

Volume

1

fYear

2004

fDate

6-11 June 2004

Firstpage

135

Abstract

We present a 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 2 GHz is reported and it exhibits low insertion loss for measurement taken at 30K, 60K, and 77K, up to 20 GHz. To the best of our knowledge, this is the largest delay so far for microstrip on a single 2-inch diameter wafer.

Keywords

delay lines; lanthanum compounds; microstrip lines; microstrip resonators; superconducting microwave devices; superconducting transmission lines; thin films; yttrium compounds; 2 GHz; 2 inches; 29 nsec; 30 K; 60 K; 77 K; YBaCuO; double-spiralled meander line; insertion loss; microstrip resonator; resonator technique; superconducting device measurement; superconducting microstrip delay line; thin film deposition; transmission lines; Delay lines; High temperature superconductors; Insertion loss; Loss measurement; Microstrip resonators; Sputtering; Substrates; Superconducting thin films; Thin film devices; Yttrium barium copper oxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2004 IEEE MTT-S International

ISSN

0149-645X

Print_ISBN

0-7803-8331-1

Type

conf

DOI

10.1109/MWSYM.2004.1335822

Filename

1335822