Design and implementation of a lumped-element multipole HTS filter at 15 MHz

Author

Hui Xu ; Gao, E. ; Sahba, S. ; Miller, J.R. ; Ma, Q.Y. ; Pond, J.M.

Author_Institution

Dept. of Electr. Eng., Columbia Univ., New York, NY, USA

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

3886

Lastpage

3888

Abstract

We have designed a three-pole bandpass filter operating at 15 MHz. The parameters of the filter include high Q, narrow band, low insertion loss and a return loss of 20 dB. The filter was fabricated from double-sided YBCO thin film on a two inch LAO substrate. The design utilizes individual HTS lumped elements (interdigital capacitors and meander line inductors) to realise the poles of the filter. The design and modeling of the filter are discussed in detail. Experimental results from the S-parameter measurements will be presented. Good agreement has been found between the simulation results and experimental data.

Keywords

S-parameters; band-pass filters; barium compounds; high-temperature superconductors; microstrip filters; radiofrequency filters; superconducting filters; superconducting thin films; yttrium compounds; 15 MHz; 20 dB; S-parameter measurements; YBaCuO; insertion loss; interdigital capacitors; lumped-element multipole HTS filter; meander line inductors; return loss; three-pole bandpass filter; Band pass filters; Capacitors; High temperature superconductors; Insertion loss; Narrowband; Scattering parameters; Substrates; Thin film inductors; Transistors; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783876

Filename

783876