Bakr, Mohamed H.Bandler, John W.Rayas-Sánchez, José E.Søndergaard, Jacob2013-05-212013-05-212000-12M.H. Bakr, J.W. Bandler, K. Madsen, J.E. Rayas-Sánchez and J. Søndergaard, “Space mapping optimization of microwave circuits exploiting surrogate models,” IEEE Trans. Microwave Theory Tech., vol. 48, pp. 2297-2306, Dec. 2000.0018-9480http://hdl.handle.net/11117/624Apowerful new space-mapping (SM) optimization algorithm is presented in this paper. It draws upon recent developments in both surrogate model-based optimization and modeling of microwave devices. SM optimization is formulated as a general optimization problem of a surrogate model. This model is a convex combination of a mapped coarse model and a linearized fine model. It exploits, in a novel way, a linear frequency-sensitive mapping. During the optimization iterates, the coarse and fine models are simulated at different sets of frequencies. This approach is shown to be especially powerful if a significant response shift exists. The algorithm is illustrated through the design of a capacitively loaded 10 : 1 impedance transformer and a double-folded stub filter. A high-temperature superconducting filter is also designed using decoupled frequency and SMs.engDesign AutomationMicrowave CircuitsMicrostrip FiltersOptimization MethodsSpace MappingSuperconducting FiltersSurrogate ModelsElectromagnetic Based Optimizationinfo:eu-repo/semantics/article