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Equivalent Circuit Modeling of Millimeter-Wave On-Chip Transformers

Daniele Giovannini

Equivalent Circuit Modeling of Millimeter-Wave On-Chip Transformers.

Rel. Stefano Grivet Talocia. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Elettronica (Electronic Engineering), 2022


This work presents a wideband extraction methodology for Equivalent Circuit Models (ECM) of millimeter-wave on-chip transformers. The flow is based on multiple modal excitations of a device through suitable n-port transformations (i.e. Y/H/Z-parameters) of the original S-parameters representation extracted by the electromagnetic simulation of said device. In addition to the many extraction methods described in the literature, we include the significant influence of the guard ring surrounding the device in our model. The different excitations are aimed at isolating specific branches of a physics-based ECM that is devised for the interpretation of the n-port data. Responses to the stimuli are computed and visually interpreted in the frequency domain through Bode plots to validate and, if necessary, augment the ECM; successively, circuit parameters for an isolated branch are extracted via a combination of analytical expressions and gradient-based numerical optimization. Finally, numerical optimization is exploited on the whole ECM to maximize overall accuracy after a representation change of basis that is functional to the use case of the device.

Relators: Stefano Grivet Talocia
Academic year: 2022/23
Publication type: Electronic
Number of Pages: 69
Additional Information: Tesi secretata. Fulltext non presente
Corso di laurea: Corso di laurea magistrale in Ingegneria Elettronica (Electronic Engineering)
Classe di laurea: New organization > Master science > LM-29 - ELECTRONIC ENGINEERING
Ente in cotutela: Infineon Technologies AG, Neubiberg, Germany (GERMANIA)
Aziende collaboratrici: Infineon Technologies AG
URI: http://webthesis.biblio.polito.it/id/eprint/24624
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