30 August 1993 Performance of a high TC superconducting ultra-loss microwave microstrip filter
Author Affiliations +
Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 21044W (1993) https://doi.org/10.1117/12.2298608
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom
Abstract
High-quality oriented thin films of YBa2Cu30y having transition been madetemperature < 89 K and critical current densities (at 77 K) < 106 A/cm2 bypulsed laser deposition on (1012) non-buffered sapphire substrates. Themicrowave surface resistance (Rs) has been measured between 10 K and 300 K at135 GHz by a copper cavity end-wall-replacement technique. Microwave devicesfabricated from films on non-buffered sapphire have included an K-Bandmodified three-pole Chebyschev filter having an insertion loss of 1,2 dB at60 K. The HTS filter was designed to be a 5 % bandwidth. Our filters outperform similar copper microstrip filters, indicating that practical levels ofHTS performance have been achieved.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
O. D. Pustylnik, "Performance of a high TC superconducting ultra-loss microwave microstrip filter", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21044W (30 August 1993); doi: 10.1117/12.2298608; https://doi.org/10.1117/12.2298608
PROCEEDINGS
6 PAGES


SHARE
Back to Top