Y-Ba-Cu-O microstrip resonators on sapphire substrates

Oleg Pustylnik; Alexander D. Dymnikov; Igor V. Voinovsky; Oleg A. Khymenko

doi:10.1117/12.183066

19 August 1994 Y-Ba-Cu-O microstrip resonators on sapphire substrates

Oleg Pustylnik, Alexander D. Dymnikov, Igor V. Voinovsky, Oleg A. Khymenko

Proceedings Volume 2211, Millimeter and Submillimeter Waves; (1994) https://doi.org/10.1117/12.183066
Event: Millimeter and Submillimeter Waves and Applications: International Conference, 1994, San Diego, CA, United States

Abstract

We have measured very low microwave losses in Y-Ba-Cu-O fifth wave ring resonators. We deposited the Y-Ba-Cu-O film on (1012) non-buffered sapphire substrates and patterned microwave circuits. High-Tc microstrip resonators demonstrated best Q-factor greater then 800 at 31 GHz, corresponding to surface resistances less than 3,0 mOhm. Identical copper resonator showed Qs of 500 and surface resistance of 27 mOhm. We show that the losses in the high loss samples can be accounted for by the presence of small fractions of c- axis-aligned grains highly misapplied in the plane of those films. Volume fraction of highly misagned c-axis-oriented grains as 3% lead to losses above 3 mOhm.

Citation Download Citation

Oleg Pustylnik, Alexander D. Dymnikov, Igor V. Voinovsky, and Oleg A. Khymenko "Y-Ba-Cu-O microstrip resonators on sapphire substrates", Proc. SPIE 2211, Millimeter and Submillimeter Waves, (19 August 1994); https://doi.org/10.1117/12.183066

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available