On low-fidelity models for variable-fidelity simulation-driven design optimization of compact wideband antennas | IEEE Conference Publication | IEEE Xplore

On low-fidelity models for variable-fidelity simulation-driven design optimization of compact wideband antennas


Abstract:

The paper addresses simulation-driven design optimization of compact antennas involving variable-fidelity electromagnetic (EM) simulation models. Comprehensive investigat...Show More

Abstract:

The paper addresses simulation-driven design optimization of compact antennas involving variable-fidelity electromagnetic (EM) simulation models. Comprehensive investigations are carried out concerning selection of the coarse model discretization density. The effects of the low-fidelity model setup on the reliability and computational complexity of the optimization process are determined using a benchmark set of three ultra-wideband antennas designed for the best matching and for the minimum size. The optimization algorithm of choice is trust-region gradient search with low-fidelity model correction realized through frequency scaling and multiplicative output space mapping. The results indicate that appropriate low-fidelity model setup can be assessed using a correlation analysis based on the selected characteristic points of the antenna responses and sparsely allocated test designs, and the results are consistent across the considered benchmark set.
Date of Conference: 14-17 May 2018
Date Added to IEEE Xplore: 09 July 2018
ISBN Information:
Conference Location: Poznan, Poland

References

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