Title :
Space Mapping Optimization Algorithms for Engineering Design
Author :
Koziel, Slawomir ; Bandler, John W. ; Madsen, Kaj
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont.
Abstract :
A simple, efficient optimization algorithm based on space mapping (SM) is presented. It utilizes input SM to reduce the misalignment between the coarse and fine models of the optimized object over a region of interest, and output space mapping (OSM) to ensure matching of response and first-order derivatives between the mapped coarse model and the fine model at the current iteration point. We also consider an enhanced version in which the input SM coefficients are frequency dependent. The performance of our new algorithms is comparable with the recently published SMIS algorithm when applied to a benchmark problem. In comparison with SMIS, the models presented are simple and have a small number of parameters that need to be extracted. The new algorithm is applied to the optimization of a coupled-line band-pass filter
Keywords :
Jacobian matrices; band-pass filters; circuit optimisation; CAD; OSM; SMIS algorithm; band-pass filter; coarse model; computer-aided design; coupled-line filter; current iteration point; design automation; engineering design; engineering optimization; fine models; first-order derivatives; misalignment reduction; optimization algorithms; output space mapping; Algorithm design and analysis; Computational modeling; Computer simulation; Design automation; Design engineering; Design optimization; Electromagnetic modeling; Mathematical model; Samarium; Space technology; Computer-aided design (CAD); design automation; engineering optimization; optimization; space mapping (SM);
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249642