Microwave characteristics of YBaCuO coplanar waveguide resonators fabricated by the sol-gel process on polycrystalline MgO

Haruichi Kanaya, Tomohiko Kaneyuki, Hidehiro Senoh, Yasuo Cho, Ikuo Awai

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

High temperature superconducting (HTS) Y-Ba-Cu-O (YBCO) films were prepared on MgO polycrystal substrates by the sol-gel process. The resistivity at DC and the surface resistance (Rs) at a microwave frequency of the films were measured. Rs was found to be highly dependent on the thickness of the films and the temperature, and the optimal value obtained for Rs was 4.2 mΩ at 40 K and 10 GHz. We also fabricated a YBCO coplanar waveguide (CPW) half-wavelength resonator around 2 GHz and compared its RF property with that of a normal metal. The incident power dependence of the transmission characteristics was observed to examine the power handling capability of the HTS resonator. As the temperature and the input power decreased, the quality factor (Q0) of the YBCO CPW resonator improved significantly, as opposed to hardly any change of that of a normal metal.

Original languageEnglish
Pages (from-to)6311-6315
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
Volume36
Issue number10
Publication statusPublished - 1997
Externally publishedYes

Fingerprint

Coplanar waveguides
sol-gel processes
Sol-gel process
Resonators
resonators
Microwaves
waveguides
microwaves
Superconducting resonators
polycrystals
microwave frequencies
Surface resistance
metals
Temperature
Q factors
Microwave frequencies
Polycrystals
Metals
direct current
electrical resistivity

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)
  • Engineering(all)

Cite this

Microwave characteristics of YBaCuO coplanar waveguide resonators fabricated by the sol-gel process on polycrystalline MgO. / Kanaya, Haruichi; Kaneyuki, Tomohiko; Senoh, Hidehiro; Cho, Yasuo; Awai, Ikuo.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes, Vol. 36, No. 10, 1997, p. 6311-6315.

Research output: Contribution to journalArticle

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AU - Awai, Ikuo

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