TY - JOUR

T1 - Space Mapping With Adaptive Response Correction for Microwave Design Optimization

A1 - Koziel,S.

A1 - Bandler,J.W.

A1 - Madsen,Kaj

AU - Koziel,S.

AU - Bandler,J.W.

AU - Madsen,Kaj

PB - I E E E

PY - 2009

Y1 - 2009

N2 - 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 sufficient matching with the fine model. The technique often works very well; however, in some cases it fails. Especially in the microwave area where the typical model response (e.g., vertical bar S-21 vertical bar) is a highly nonlinear function of the free parameter (e.g., frequency), the output space-mapping correction term may actually increase the mismatch between the surrogate and fine models for points other than the one at which the term was calculated, as in the surrogate model optimization process. In this paper, an adaptive response correction scheme is presented to work in conjunction with space-mapping optimization algorithms. This technique is designed to alleviate the difficulties of the standard output space mapping by adaptive adjustment of the response correction term according to the changes of the space-mapped coarse model response. Examples indicate the robustness of our approach.

AB - 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 sufficient matching with the fine model. The technique often works very well; however, in some cases it fails. Especially in the microwave area where the typical model response (e.g., vertical bar S-21 vertical bar) is a highly nonlinear function of the free parameter (e.g., frequency), the output space-mapping correction term may actually increase the mismatch between the surrogate and fine models for points other than the one at which the term was calculated, as in the surrogate model optimization process. In this paper, an adaptive response correction scheme is presented to work in conjunction with space-mapping optimization algorithms. This technique is designed to alleviate the difficulties of the standard output space mapping by adaptive adjustment of the response correction term according to the changes of the space-mapped coarse model response. Examples indicate the robustness of our approach.

KW - response correction

KW - microwave design

KW - Engineering optimization

KW - space-mapping optimization

KW - space mapping

U2 - 10.1109/TMTT.2008.2011243

DO - 10.1109/TMTT.2008.2011243

JO - IEEE Transactions on Microwave Theory and Techniques

JF - IEEE Transactions on Microwave Theory and Techniques

SN - 0018-9480

IS - 2

VL - 57

SP - 478

EP - 486

ER -