Fabrication and characterization of two-pole X-band HgBa2CaCu2O6+δ microstrip filters.

Autor: Dizon, Jonathan R., Hua Zhao, Baca, Javier, Mishra, Shramana, Emergo, Rose Lyn, Aga, Roberto S., Wu, Judy Z.
Předmět:
Zdroj: Applied Physics Letters; 2/27/2006, Vol. 88 Issue 9, p092507, 3p, 4 Graphs
Abstrakt: HgBa2CaCu2O6+δ (Hg-1212) two-pole X-band microstrip filters of 5% 3 dB bandwidth have been fabricated and evaluated. The Hg-1212 filters exhibited a 449±3 MHz bandwidth and a center frequency of 10.86±0.02 GHz below the superconducting temperature Tc of 121 K with low insertion loss of 0.70±0.04 dB at 110 K. This performance represents the best so far achieved in superconductor filters at above 100 K. The better performance of the Hg-1212 filter at higher temperatures, as compared to its YBa2Cu3O7 and Cu counterparts at 77 K, was attributed mainly to its higher Tc, which makes Hg-1212 a promising alternative material for passive microwave devices. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index