Numerical optimization of hybrid dielectric/HTS resonators for surface impedance evaluation of HTS films
This work describes an alternative to the traditional dielectric resonator topology used for measuring surface impedance in High Temperature Superconducting (HTS) films. A gap is introduced above the dielectric so that only the lower film is in direct contact with it. This arrangement has been used...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1999 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/998 |
| Acceso en línea: | https://hdl.handle.net/2117/998 |
| Access Level: | acceso abierto |
| Palabra clave: | Dielectric resonators Impedance (Electricity) Measurement. Resonators Superconducting films Electric impedance measurement High temperature superconductors Algorithms Dielectric losses Surface measurement Numerical analysis Optimization Dielectric resonator topology Resonator losses Numerically efficient mode matching algorithms Resonadors dielèctrics Impedància (Electricitat) Àrees temàtiques de la UPC::Enginyeria electrònica::Components electrònics Àrees temàtiques de la UPC::Enginyeria electrònica::Circuits electrònics |
| Sumario: | This work describes an alternative to the traditional dielectric resonator topology used for measuring surface impedance in High Temperature Superconducting (HTS) films. A gap is introduced above the dielectric so that only the lower film is in direct contact with it. This arrangement has been used extensively for mechanical tuning of dielectric resonators and, when used for surface impedance measurement, it can be designed to make the losses in the upper film small relative to the overall resonator losses. Then, measured results are mostly due to one of the films and not the average of two. The specifics of a resonator design for measuring 2-inch wafers are presented. An analysis and optimization of the resonator is done using a numerically efficient mode-matching algorithm. |
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