A novel surrogate-based approach for optimal design of electromagnetic-based circuits. Issue 2 (1st February 2016)

• Record Type: Journal Article
• Authors: Hassan, Abdel-Karim S.O.; Mohamed, Ahmed S.A.; Rabie, Azza A.; Etman, Ahmed S.
• Is Part Of: Engineering optimization. Volume 48:Issue 2(2016)
• Page Start: 185
• Page End: 198
• Publication Date: 2016-02-01
• Subjects: EM-based circuit design -- design centring -- normed distances -- optimal design -- space-mapping surrogates -- yield optimization; Engineering design -- Periodicals; Mathematical optimization -- Periodicals; 620.0042
• DOI: 10.1080/0305215X.2014.995178
• Languages: English
• ISSNs: 0305-215X

Abstract

Abstract : A new geometric design centring approach for optimal design of central processing unit-intensive electromagnetic (EM)-based circuits is introduced. The approach uses norms related to the probability distribution of the circuit parameters to find distances from a point to the feasible region boundaries by solving nonlinear optimization problems. Based on these normed distances, the design centring problem is formulated as a max–min optimization problem. A convergent iterative boundary search technique is exploited to find the normed distances. To alleviate the computation cost associated with the EM-based circuits design cycle, space-mapping (SM) surrogates are used to create a sequence of iteratively updated feasible region approximations. In each SM feasible region approximation, the centring process using normed distances is implemented, leading to a better centre point. The process is repeated until a final design centre is attained. Practical examples are given to show the effectiveness of the new design centring method for EM-based circuits.