High-T/sub c/ superconducting microstrip resonators and filters on LaAlO/sub 3

The authors discuss recent developments in high-Q microstrip resonators and filters using various deposition processes. They successfully developed sputtering, metalorganic vapor deposition (MOCVD), and laser deposition processes that produces high-quality high-T/sub c/ superconducting (HTS) films o...

Full description

Saved in:
Bibliographic Details
Main Authors: Takemoto, J.H., Jackson, C.M., Hu, R., Manasevit, H.M., Petite-Hall, C., Burch, J.F., St. John, D.C., Lee, A., Daly, K.P.
Format: Conference Proceeding
Language:English
Subjects:
High temperature superconductors
Microstrip filters
Microstrip resonators
Microwave circuits
MOCVD
Resonator filters
Sputtering
Superconducting films
Superconducting filters
Superconducting microwave devices
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The authors discuss recent developments in high-Q microstrip resonators and filters using various deposition processes. They successfully developed sputtering, metalorganic vapor deposition (MOCVD), and laser deposition processes that produces high-quality high-T/sub c/ superconducting (HTS) films on LaAlO/sub 3/. For the double-sided MOCVD process, replacing the Ag ground plane with an HTS ground plane in silver ground plane eliminates extra surface losses due to normal metal ground conductors. These two-sided microwave circuits yield higher microwave performances than one-sided HTS circuits and much higher performance than identical Ag circuits. HTS surface resistances less than 330 mu Omega at 10 GHz were achieved. Q-values of 9600 at 1.3 GHz were achieved in meanderline resonators.< >
DOI:10.1109/FREQ.1991.145938