TUNABLE SUPERCONDUCTIVE RF NETWORKS.
Abstract
This final report represents a two-year effort on the development of a multielement tunable superconductive preselector, and the investigation into the RF properties of high-temperature superconductors, notably niobium-stannide (Nb3Sn). The program resulted in the following major accomplishments: (1) Developed the first multielement superconductive band-pass filter. (2) Demonstrated the feasibility of a high-temperature superconducting high-Q RF rilter (unloaded Q as high as 4.2 million was measured using niobium stannide superconductor). (3) Successfully demonstrated a complete high-temperature niobium stannide superconducting resonator cooled by a small compact closed-cycle refrigerator. (4) Showed that lucalox (aluminum oxide) dielectric combines, at cryogenic temperatures, the properties of very low dielectric loss and high thermal conductivity, needed for closed-cycle cooling. The report also presents the theory operation, electrical performance and the physical configurations of the filter models developed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1967
- Accession Number
- AD0822472
Entities
People
- D. S. Levinson
- F. Arams
- K. Siegel
- R. Domchick
- R. Sleven