Single Crystal Piezoelectric Actuators for Tunable HTS Filters.

Autor: Jiang, Xiaoning, Rehrig, Paul W., Hackenberger, Wesley S., Perini, Steve, Lanagan, Mike, Xiaoxing Xi, Furman, Eugene, Prophet, Eric, Willemsen, Balam, Hammond, Bob
Předmět:
Zdroj: AIP Conference Proceedings; 2006, Vol. 823 Issue 1, p928-935, 8p, 2 Diagrams, 6 Graphs
Abstrakt: This paper presents cryogenic actuators for high-temperature superconducting (HTS) tunable filters. The designated piezo-tuned-HTS concept will enable a broad range of civilian and military applications that require precise band selectivity over a broad frequency range. In this paper, low profile flextensional single crystal actuators were developed with 150-μm stroke at 77 K. This actuator was then used for Superconducting Technologies, Inc. (STI) HTS resonator tuning in liquid nitrogen. A fine tuning using the same actuator shows more than 3% tunability and less than 1-dB insertion loss variation and the Q is about a few thousands. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index