GLTRS--Glenn
TITLE AND SUBTITLE:
Tunable Microwave Components for Ku- and K-Band Satellite Communications

AUTHOR(S):
F.A. Miranda, F.W. Van Keuls, R.R. Romanofsky, and G. Subramanyam

REPORT DATE:
May 1998

FUNDING NUMBERS:
WU-632-50-5D-00

PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES):
National Aeronautics and Space Administration
Lewis Research Center
Cleveland, Ohio 44135-3191

PERFORMING ORGANIZATION REPORT NUMBER:
E-11111

SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES):
National Aeronautics and Space Administration
Washington, DC 20546-0001

REPORT TYPE AND DATES COVERED:
Technical Memorandum

SPONSORING/MONITORING AGENCY REPORT NUMBER:
NASA TM-1998-206963

SUPPLEMENTARY NOTES:
Prepared for the 10th International Symposium on Integrated Ferroelectrics sponsored by the University of Colorado
at Colorado Springs, Monterey, California, March 1-4, 1998. F.W. Van Keuls, National Research Council-NASA
Research Associate at Lewis Research Center; F.A. Miranda and R.R. Romanofsky, NASA Lewis Research Center;
G. Subramanyam, University of Northern Iowa, Cedar Falls, Iowa 50614. Responsible person, F.A. Miranda, organization code 5620, (216) 433-6589.

ABSTRACT:
The use of conductor/ferroelectric/dielectric thin film multilayer structures for frequency and phase agile components at frequencies at and above the Ku-band will be discussed. Among these components are edge coupled filters, microstripline ring resonators, and phase shifters. These structures were implemented using SrTiO3 (STO) ferroelectric thin films, with gold or YBa2Cu3O7-d (YBCO) high temperature superconducting (HTS) microstrip lines deposited by laser ablation on LaAlO3 (LAO) substrates. The performance of these structures in terms of tunability, operating temperature, frequency, and dc bias will be presented. Because of their small size, light weight, and low loss, these tunable microwave components are being studied very intensely at NASA as well as the commercial communication industry. An assessment of the progress made so far, and the issues yet to be solved for the successful integration of these components into the aforementioned communication systems will be presented.

SUBJECT TERMS:
Tunable microwave components; Conductor/ferroelectric multilayered structures; Phase shifters; Filters; Resonators; Diplexers

NUMBER OF PAGES:
16

PDF AVAILABLE FROM URL:
1998/TM-1998-206963.pdf
(345,830 KB)
This page contains an Adobe® Acrobat® Reader PDF file. The PDF documents have been created to show thumbnails of each page. If the thumbnails do not display properly, download the file to the hard drive and view through Acrobat® Reader. You can download Acrobat® Reader for free. click

NASA NASA GLTRS--Glenn

A service of the NASA Glenn Research Center Logistics and Technical Information Division

Suggestions or questions about this site can be directed to:

NASA official: Technical Publications Manager, Sue.E.Butts@nasa.gov

Web curator: Caroline.A.Rist@grc.nasa.gov

Privacy Policy and Important Notices