Adjoint sensitivity analysis with analytical shape derivatives of the EFIE system

Author

Kataja, Juhani ; Toivanen, Jukka I. ; Jarvenpaa, Seppo

Author_Institution

Dept. of Radio Sci. & Eng., Aalto Univ., Aalto, Finland

fYear

2013

fDate

20-24 May 2013

Firstpage

37

Lastpage

40

Abstract

We derive analytical shape integral formulas for the shape derivatives of the system matrix arising from the RaoWilton-Glisson (RWG) discretized electric field integral equation. Using these formulas and the adjoint variable method (AVM), we inspect sensitivity of input reflection coefficient of a certain UWB dipole antenna with respect to infinitesimal variations of the computational mesh. The sensitivity obtained with the analytical formula is compared against one calculated with the finite difference approximation.

Keywords

dipole antennas; electric field integral equations; optimisation; sensitivity analysis; ultra wideband antennas; AVM; RWG discretized electric field integral equation; Rao-Wilton-Glisson; UWB dipole antenna; adjoint variable method; analytical shape integral formulas; computational mesh; finite difference approximation; input reflection coefficient sensitivity; shape derivatives; system matrix; Antennas; Clocks; Ions; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on

Conference_Location

Hiroshima

Print_ISBN

978-1-4673-4939-0

Type

conf

Filename

6565668