Computer aided optimal design of H-plane W/G circulator

Jinwoo Shin, Changyul Cheon

Research output: Contribution to journalConference articlepeer-review


A numerical analysis technique is required for the optimal design of H-plane waveguide circulator. A hybrid finite element method is used which is a combination of the finite element method and the boundary element method. In the shape optimization method, the positions of nodes, that compose the shape of a geometry, are chosen as design variables. The objective function is defined as a function of design and state variables and the total derivatives are calculated with respect to the design variables. The design sensitivity analysis is used to obtain the derivatives. Adjoint variables are used to overcome the difficulty in inverting the system matrix and the steepest descent algorithm is used for updating the design variables.

Original languageEnglish
Pages (from-to)506-509
Number of pages4
JournalAP-S International Symposium (Digest) (IEEE Antennas and Propagation Society)
StatePublished - 1997
EventProceedings of the 1997 IEEE Antennas and Propagation Society International Symposium. Part 1 (of 4) - Montreal, Can
Duration: 13 Jul 199718 Jul 1997


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