Citation
Abstract
This article reports successful fabrication of a five-pole interdigital stripline filter made of the 93-K superconductor (Y; BazCugO,) coated on a silver substrate, with center frequency of 8.5 GHz and an extremely high rejection ratio of 80 dB. The lowest insertion loss measured was 0.1 dB at 12 K, with a return loss of better than 16 dB, representing a significant improvement over a similar copper filter, and 1s comparable to low critical-temperature filters. The insertion loss appears to be limited by extrinsic factors, such as tuning mismatch and joint losses, and not by the superconducting material losses.
Details
- Volume
- 42-106
- Published
- August 15, 1991
- Pages
- 60–65
- File Size
- 321.8 KB