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A Resonator for Tunable Superconducting Power Filters with Cavities for 5 GHz Band
Kazunori YAMANAKA Kazuaki KURIHARA Akihiko AKASEGAWA
IEICE TRANSACTIONS on Electronics
Publication Date: 2010/04/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Frontiers of Superconductive Electronics)
cavity resonator, tunable, superconductor, microwave filter,
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| Errata[Uploaded on June 1,2010]
A design of the tunable superconducting power filter is described. The filter consists of superconducting microwave cavities with a mechanical tuning method. The electromagnetic simulations using niobium cavity suggested that there were conditions where the resonator with high-unloaded Q can realize a fractional center frequency change of more than 10% by using a Nb rod moving in the cavity. The simulations approximated the resonant frequency dependence of the rod moved by a cryogenic actuator in the tunable cavity experiment. In addition, the simulation of the power handling capability showed a feasibility of the value more than 50 dBW.