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Proceedings Paper

Coplanar waveguide microwave filter of YBa2Cu3O7
Author(s): Wilbert Chew; A. Lance Riley; Daniel L. Rascoe; Brian D. Hunt; Marc C. Foote; Thomas W. Cooley; Louis J. Bajuk
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Paper Abstract

Thin film low-pass microwave filters have been made with laser-ablated YBa2Cu3O(7-delta) (YBCO) deposited on LaAlO3 substrates, using a coplanar waveguide structure. The coplanar waveguide sections had dimensions suited for integrated circuits. Measured losses in liquid nitrogen were superior to the loss in a similar thin-film copper filter throughout the 0 to 9.5 GHz pass-band. A simple transmission-line model is adequate for filter design using YBCO films with repeatable characteristics. The measured filters demonstrate the performance of fully patterned YBCO after sealing in space-qualifiable hermetic packages. Five packaged filters of this design were delivered to the Naval Research Laboratory as candidates for space flight in the High Temperature Superconductivity Space Experiment.

Paper Details

Date Published: 1 July 1991
PDF: 6 pages
Proc. SPIE 1477, Superconductivity Applications for Infrared and Microwave Devices II, (1 July 1991); doi: 10.1117/12.45601
Show Author Affiliations
Wilbert Chew, Jet Propulsion Lab. (United States)
A. Lance Riley, Jet Propulsion Lab. (United States)
Daniel L. Rascoe, Jet Propulsion Lab. (United States)
Brian D. Hunt, Jet Propulsion Lab. (United States)
Marc C. Foote, Jet Propulsion Lab. (United States)
Thomas W. Cooley, Jet Propulsion Lab. (United States)
Louis J. Bajuk, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 1477:
Superconductivity Applications for Infrared and Microwave Devices II
Vernon O. Heinen; Kul B. Bhasin, Editor(s)

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