A hybrid aggressive space mapping algorithm for EM optimization

Author

Bakr, M.H. ; Bandler, J.W. ; Georgieva, N. ; Madsen, K.

Author_Institution

Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada

Volume

1

fYear

1999

fDate

13-19 June 1999

Firstpage

265

Abstract

We present a novel, hybrid aggressive space mapping (HASM) optimization algorithm. HASM is a hybrid approach exploiting both the trust region aggressive space mapping (TRASM) algorithm and direct optimization. It does not assume that the final space-mapped design is the true optimal design and is robust against severe misalignment between the coarse and the fine models. The algorithm is based on a novel lemma that enables smooth switching from the TRASM optimization to direct optimization and vice versa. The new algorithm has been tested on several microwave filters and transformers.

Keywords

circuit optimisation; microwave circuits; microwave filters; parameter estimation; EM optimization; coarse models; direct optimization; fine models; hybrid aggressive space mapping algorithm; microwave filters; smooth switching; transformers; trust region aggressive space mapping; Circuit testing; Computational modeling; Computer simulation; Jacobian matrices; Laboratories; Microwave filters; Parameter extraction; Robustness; Samarium; Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1999 IEEE MTT-S International

Conference_Location

Anaheim, CA, USA

Print_ISBN

0-7803-5135-5

Type

conf

DOI

10.1109/MWSYM.1999.779471

Filename

779471