AN IMPULSE SAMPLING APPROACH FOR EFFICIENT 3D TLM-BASED ADJOINT SENSITIVITY ANALYSIS | Zendy

Osman Ahmed | Zendy; Mohamed H. Bakr | Zendy; Xun Li | Zendy

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AN IMPULSE SAMPLING APPROACH FOR EFFICIENT 3D TLM-BASED ADJOINT SENSITIVITY ANALYSIS

Author(s) -

Osman Ahmed,

Mohamed H. Bakr,

Xun Li

Publication year - 2013

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier13062805

Subject(s) - sensitivity (control systems) , impulse (physics) , sampling (signal processing) , computer science , mathematics , physics , electronic engineering , engineering , telecommunications , classical mechanics , detector

We present a memory e-cient algorithm for the estimation of adjoint sensitivities with the transmission line modeling (TLM) method. Our algorithm manipulates the local scattering matrices to drastically reduce the required storage for problems with lossy dielectric discontinuities. Only one impulse per cell is stored for two dimensional simulations and three impulses per cell are stored for three dimensional simulations. The required memory storage for our impulse sampling approach is only 10% of of the original TLM-based adjoint sensitivity analysis. The technique is illustrated through two examples including the sensitivity analysis of a dielectric resonator antenna.

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