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PIER PIER B PIER C PIER M PIER Letters
2013-09-13
An Impulse Sampling Approach for Efficient 3D TLM-Based Adjoint Sensitivity Analysis
By
Osman S. Ahmed,

    Dr. Osman S. Ahmed

    The Department of Electrical and Computer Engineering

    McMaster University

    Canada

    Homepage

Mohamed H. Bakr,

    Professor Mohamed H. Bakr

    Department of Electrical and Computer Engineering

    McMaster University

    Canada

    Homepage

Xun Li

    Dr. Xun Li

    Department of Electrical and Computer Engineering

    McMaster University

    Canada

    Homepage

Progress In Electromagnetics Research, Vol. 142, 485-503, 2013
doi:10.2528/PIER13062805
Abstract
We present a memory efficient 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 that of the original TLM-based adjoint sensitivity analysis. The technique is illustrated through two examples including the sensitivity analysis of a dielectric resonator antenna.
Citation
Osman S. Ahmed, Mohamed H. Bakr, and Xun Li, "An Impulse Sampling Approach for Efficient 3D TLM-Based Adjoint Sensitivity Analysis," Progress In Electromagnetics Research, Vol. 142, 485-503, 2013.
doi:10.2528/PIER13062805
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