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Item type:Publication, Access status: with files , Optimization of modal reflection parameters of PCB connector and common-mode choke using Gaussian process regression and segmentation(Institute of Electrical and Electronics Engineers, 2026); ; ; ; In this contribution the electrical properties of a high-speed signal transition from a connector onto a printed circuit board (PCB) followed by a common-mode choke (CMC) in a surface mount package in terms of its modal, i.e., differentialand common-mode, reflection parameters has been investigated. An implementation of segmentation, i.e. domain decomposition and subsequent composition of subdomains, in combination with Gaussian process regression (GPR) to optimize the reflections of the PCB connectors and CMC integration on the board is presented and analyzed. GPR is used with Bayesian optimization to find an optimal set of design parameters for a 3D electromagnetic model developed in a full-wave electromagnetic field solver up to 20 GHz. The results indicate that an engineeringinformed domain decomposition strategy can reduce the computational burden of GPR-based optimization by lowering the per-evaluation full-wave cost. This surrogate-based optimization approach reduces the number of required full-wave simulations, enabling more efficient use of computational resources.Publicationtype: Conference Paper71 44