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The unloaded quality factor as well as the coupling coefficient of open resonators are determined by evaluating measured complex reflection coefficients. The cavity is described by an equivalent circuit, the parameters of this circuit are calculated by means of a least-square fit of the simulated to the measured reflection coefficients. The solution is obtained using the Householder-algorithm, which promises very fast and stable computation. This approach is capable of evaluating quality-factor measurements for each type of resonator, even with losses in the coupling aperture. Its validity is illustrated by measurements in the cm- and mm-wave range
Published in:
Instrumentation and Measurement, IEEE Transactions on
(Volume:48
,
Issue:
3
)
Date of Publication: Jun 1999
- Page(s):
- 688 - 692
- ISSN :
- 0018-9456
- INSPEC Accession Number:
- 6303179
- Digital Object Identifier :
- 10.1109/19.772197
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Jun 1999
- Sponsored by :
- IEEE Instrumentation and Measurement Society
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