info:eu-repo/semantics/article
Design Optimization of Full-Wave EM Models by Low-Order Low-Dimension Polynomial Surrogate Functionals
Registro en:
Rayas‐Sánchez, J. E., Chávez‐Hurtado, J. L., and Brito‐Brito, Z. ( 2017) Optimization of full‐wave EM models by low‐order low‐dimension polynomial surrogate functionals. Int. J. Numer. Model., 30: e2094. doi: 10.1002/jnm.2094.
0894-3370
Autor
Rayas-Sánchez, José E.
Chávez-Hurtado, José L.
Brito-Brito, Zabdiel
Institución
Resumen
A practical formulation for EM-based design optimization of high-frequency circuits using simple polynomial surrogate functionals is proposed in this paper. Our approach starts from a careful selection of design variables and is based on a closed-form formulation that yields global optimal values for the surrogate model weighting factors, avoiding a large set of expensive EM model data, and resulting in accurate low-order low-dimension polynomials interpolants that are used as vehicles for efficient design optimization. Our formulation is especially suitable for EM-based design problems with no equivalent circuital models available. The proposed technique is illustrated by the EM-based design optimization of a Ka-band substrate integrated waveguide (SIW) interconnect with conductor-backed coplanar waveguide (CBCPW) transitions, a low crosstalk PCB microstrip interconnect structure with guard traces, and a 10-40 GHz SIW interconnect with microstrip transitions on a standard FR4-based substrate. Three commercially available full-wave EM solvers are used in our examples: CST, Sonnet and COMSOL.