Magnetically tunable microwave filters based on YBCO/YIG/GGG heterostructures

Authors
Silliman, SD Christen, HM Knauss, LA Harshavrdhan, KS El Sabbagh, MMA Zaki, K
Citation
Sd. Silliman et al., Magnetically tunable microwave filters based on YBCO/YIG/GGG heterostructures, J ELECTROCE, 4(2-3), 2000, pp. 305-310
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF ELECTROCERAMICS
ISSN journal
13853449 → ACNP
Volume
4
Issue
2-3
Year of publication
2000
Pages
305 - 310
Database
ISI
SICI code
1385-3449(200006)4:2-3<305:MTMFBO>2.0.ZU;2-Y
Abstract
Superconducting, monolithic magnetically tunable microwave filters have bee n designed and fabricated demonstrating high tuning ranges (up to 19%) at a center frequency of 10 GHz. These filters are based on fully epitaxial YBa 2Cu3O7 (YBCO) thin films grown by pulsed laser deposition onto liquid-phase epitaxy yttrium iron garnet (YIG) layers on gadolinium iron garnet (GGG) s ubstrates. Mechanisms resulting in variations of the bandwidth and insertio n losses upon tuning are analyzed and understood in terms of the material p roperties of YIG and GGG.