This article provides an overview of multi-fidelity modeling trends. Fidelity in modeling refers
to the level of detail and accuracy provided by a predictive model or simulation. Generally …

In this paper, we outline the historical evolution of RF and microwave design optimization
and envisage imminent and future challenges that will be addressed by the next generation …

Microwave CAD has its roots in the 1960s [1]. Its practice saw the enrichment of circuit-
based model libraries, advances in EM and circuit simulation accuracy, and the refinement …

This paper presents a comprehensive approach to engineering design optimization
exploiting space mapping (SM). The algorithms employ input SM and a new generalization …

The most widely used space mapping approach to efficient design optimization is the
aggressive space mapping (ASM) algorithm. My purpose here is to present both a historical …

This article proposes a multifeature-assisted neuro-transfer function (neuro-TF) surrogate-
based electromagnetic (EM) optimization technique exploiting trust-region algorithms for …

A computationally efficient method for highly accurate electromagnetics-based statistical
analysis and yield estimation of RF and microwave circuits is described in this paper. The …

This article proposes a novel parallel gradient-based electromagnetic (EM) optimization
approach to microwave components using adjoint-sensitivity-based neuro-transfer function …

Output space mapping is a technique introduced to enhance the robustness of the space-
mapping optimization process in case the space-mapped coarse model cannot provide …

Convergence is a well-known issue for standard space-mapping optimization algorithms. It
is heavily dependent on the choice of coarse model, as well as the space-mapping …