Title :
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
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;
Conference_Titel :
Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on
Conference_Location :
Hiroshima
Print_ISBN :
978-1-4673-4939-0
