Abstract
Cross-coupled planar microwave filters were fabricated using YB 2Cu3O7-δ superconducting thin films deposited on both sides of a LaAlO3 single crystal substrate by pulsed laser deposition. The hairpin resonator geometry allows one to miniaturize the 3-GHz filters by compacting the entire filter onto a substrate with dimensions 0.5 cm × 1 cm. By adjusting the relative spacing among the resonators to establish adequate couplings, filters with very sharp rejection skirt and extremely small insertion loss in passband were obtained.
Original language | English |
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Pages (from-to) | 107-111 |
Number of pages | 5 |
Journal | IEEE Transactions on Applied Superconductivity |
Volume | 14 |
Issue number | 1 |
DOIs | |
State | Published - 03 2004 |
Externally published | Yes |
Keywords
- Compact miniaturized hairpin resonators
- High-temperature superconducting (HTS) thin films
- Planar microwave filters