at Google ScholarTitle data
Peter, Ronny ; Fischerauer, Gerhard:
De-Embedding Method for Strongly Coupled Cavities.
In: IEEE Transactions on Microwave Theory and Techniques.
Vol. 66
(2018)
Issue 4
.
- pp. 2025-2033.
ISSN 0018-9480
DOI: https://doi.org/10.1109/TMTT.2018.2791934
Abstract in another language
The well-known cavity perturbation method, in which a cavity resonator is partially filled with a material sample is used to determine material parameters (permittivity, electrical conductivity and permeability) at microwave frequencies. These parameters are inferred from the differences in resonant behavior between the empty cavity and the material-loaded cavity. When applying the method, one has to couple the cavity to external measuring equipment (e.g., a vector network analyzer) to obtain the S-parameters of the cavity. The insertion of a coupling device (e.g., a thin stub) detunes the cavity. If the cavity is loaded with a large sample or if one has no access to the empty cavity – both cases may occur in in-process monitoring applications –, one must remove the detuning effect from measured S-parameters to produce accurate estimates of the sample material parameters. Several methods for this de-embedding have been proposed in the literature. They work well for loose or not-too strong coupling, but less so for strong coupling, which may occur in in-process monitoring situations. We have examined the known de-embedding procedures with respect to their ability of coping with strong coupling by thin stubs and propose a method that works in this case.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Keywords: | Cavity resonator; coupler; de-embedding; dielectric measurement; electromagnetic modeling; loaded resonant frequency; low Q; unloaded resonant frequency |
| Institutions of the University: | Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology > Chair Measurement and Control Technology - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 06 Apr 2018 08:02 |
| Last Modified: | 13 Sep 2022 12:44 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/43228 |