A superconducting RF resonator in HF range and its multi-pole filter applications

Author

Gao, E. ; Sahba, S. ; Hui Xu ; Ma, Q.Y.

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

3066

Lastpage

3069

Abstract

We report a new RF resonator that operates at high frequency (HF, 3-30 MHz) of electromagnetic spectrum. The resonator is fabricated on a double-sided HTS (YBCO) thin film on a single 2" LAO substrate. The resonator is of smaller size and has a higher Q-value than conventional copper resonators. At temperatures below 77 K the Q-value of the resonator is above 40,000. A 3-pole filter is made by using 3 of this resonator which demonstrates a low insertion loss. This report will discuss the design, fabrication, RF characteristics (return and insertion loss), and the Q-value of the devices in detail. The simulated model of the RF characteristics of the devices will also be given.

Keywords

Q-factor; barium compounds; high-temperature superconductors; radiofrequency filters; resonator filters; superconducting filters; superconducting resonators; superconducting thin films; yttrium compounds; 3 to 30 MHz; HF range; Q-value; YBCO HTS thin film; YBaCuO; insertion loss; multi-pole filter; return loss; simulation model; superconducting RF resonator; Electromagnetic spectrum; Fabrication; Hafnium; High temperature superconductors; Insertion loss; Radio frequency; Resonator filters; Substrates; Superconducting thin films; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783676

Filename

783676