Trust-Region-Based Convergence Safeguards for Space Mapping Design Optimization of Microwave Circuits

被引：7

作者：

Koziel, Slawomir ^{[1
]}

Bandler, John W. ^{[2
,3
]}

Cheng, Qingsha S. ^{[2
]}

机构：

[1] Reykjavik Univ, Sch Sci & Engn, Kringlunni 1, IS-103 Reykjavik, Iceland

[2] McMaster Univ, Dept Elect & Comp Engn, Hamilton, ON L8S 4K1, Canada

[3] Bandler Corp, Dundas, ON L9H 5E7, Canada

来源：

2009 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM, VOLS 1-3 | 2009年

基金：

加拿大自然科学与工程研究理事会;

关键词：

Computer-aided design (CAD); EM optimization; space mapping; trust-region methods; FILTERS; FRAMEWORK;

D O I：

10.1109/MWSYM.2009.5165933

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Convergence is a well-known issue for space mapping (SM) optimization algorithms. One possible convergence safeguard is the trust region (TR) approach where the surrogate model is optimized in a restricted neighborhood of the current iteration point. We demonstrate that although formal conditions for applying trust regions are not strictly satisfied for SM surrogate models, TR improves the stability and convergence properties of the SM optimization process. Further improvement can be realized when approximate fine model Jacobian information is exploited in the construction of the SM surrogate.

引用

页码：1261 / +

页数：2

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