Narrow-band 10-pole Y-Ba-Cu-O filter on sapphire substrate

Author

Vendik, I. ; Deleniv, A. ; Svishchev, A. ; Goubina, M. ; Lapshin, A. ; Zaitsev, A. ; Schneider, R. ; Geerk, J. ; Aidam, R.

Author_Institution

Dept. of Microelectron. & Radio Eng., St. Petersburg Electrotechnical Univ., St. Petersburg, Russia

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

361

Lastpage

364

Abstract

In this paper we present the design procedure of HTS bandpass filters on sapphire substrate. The filter with 0.4% fractional bandwidth in S-band was designed using an effective CAD tool, based on spectral domain approach. The filter is based on hairpin resonators exhibiting unloaded Q up to 43000 at T=77 K. The anisotropy of the dielectric permittivity of sapphire substrate and the YBCO film contribution in the propagating characteristics have been taken into account. Substrate characteristics and YBCO film model parameters were extracted from microstrip and hairpin resonator measurements. These parameters were used in the filter simulation procedure

Keywords

Q-factor; band-pass filters; barium compounds; high-temperature superconductors; spectral-domain analysis; superconducting filters; superconducting resonators; superconducting thin films; yttrium compounds; 77 K; Al₂O₃; CAD; Q-factor; S-band; Y-Ba-Cu-O; YBCO thin film; anisotropy; computer simulation; dielectric permittivity; electromagnetic wave propagation; hairpin resonator; high temperature superconductor; multipole bandpass filter; sapphire substrate; spectral domain analysis; Anisotropic magnetoresistance; Band pass filters; Bandwidth; Design automation; Dielectric substrates; High temperature superconductors; Narrowband; Permittivity; Resonator filters; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919357

Filename

919357