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Open Access
Automatic Trimming Technique for Superconducting Band-Pass Filters Using a Trimming Library

Shigetoshi OHSHIMA, Takuro KANEKO, Jae-Hun LEE, Maya OSAKA, Satoshi ONO, Atsushi SAITO

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Summary :

The superconducting band-pass filter has small insertion loss and excellent out-of-band rejection properties. It has been put to practical use in a number of applications. However, in order to expand its range of application, a tuning technique that can restore the filter characteristics is needed. We propose an automatic tuning system using a trimming library and checked the feasibility of the system by tuning a forward-coupled filter with three resonators. The results show that the trimming library method is an effective way of automatically improving the filter characteristics.

Publication
IEICE TRANSACTIONS on Electronics Vol.E92-C No.3 pp.302-306
Publication Date
2009/03/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E92.C.302
Type of Manuscript
Special Section INVITED PAPER (Special Section on Recent Progress in Superconducting Analog Devices and Their Applications)
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