An experimental study of high Tc superconducting microstrip transmission lines at 35 GHz and the effect of film morphology

Conference · Thu Feb 28 23:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6088614

Chorey, C M ^[1]; Bhasin, K B; Warner, J D ^[2]; Josefowitz, J Y; Rensch, D B; Nieh, C W ^[3]

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1. Sverdrup Technology, LeRC Group, Brook Park, OH (US)
2. National Aeronautics and Space Administration, Cleveland, OH (United States). Lewis Research Center
3. Hughes Research Labs., Malibu, CA (United States)

This paper reports on microstrip transmission lines in the form of ring resonators fabricated from a number of in-situ grown laser ablated films and post-annealed co-sputtered YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} (YBCO) films. The properties of these resonators have been measured at 35 GHz and the observed performance is examined in light of the critical temperature (Tc) and film thickness and also the film morphology which is different from two deposition techniques. We find that Tc is a major indicator of the film performance for each growth type with film thickness becoming important as it decreases towards 1000 {Angstrom}. We find that the films with a mixed grain orientation (both a axis and c axis oriented grains) have poorer microwave properties as compared with the primarily 'c' axis oriented material.

• OSTI ID: 6088614
• Report Number(s): CONF-900944--
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:2; ISSN IEMGA; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

665300 -- Interactions Between Beams & Condensed Matter-- (1992-)
665411 -- Basic Superconductivity Studies-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CAVITY RESONATORS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL TEMPERATURE
CRYSTAL STRUCTURE
ELECTRONIC EQUIPMENT
EQUIPMENT
FABRICATION
FILMS
GRAIN BOUNDARIES
HIGH-TC SUPERCONDUCTORS
JUNCTIONS
LASERS
MICROSTRUCTURE
MORPHOLOGY
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
PHYSICAL PROPERTIES
RESONATORS
RING LASERS
SPUTTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS
TESTING
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES