A memory-efficient implementation of TLM-based adjoint sensitivity analysis

Osman S. Ahmed; Mohamed H. Bakr; Xun Li

doi:10.1109/TAP.2012.2186237

A memory-efficient implementation of TLM-based adjoint sensitivity analysis

Osman S. Ahmed^*
, Mohamed H. Bakr
, Xun Li

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We present a memory efficient algorithm for the estimation of adjoint sensitivities with the 2D transmission line modeling (TLM) method. The algorithm is based on manipulating the local scattering matrices to reduce the required storage for the original structure simulation associated with lossy dielectric discontinuities. Only one value per cell is stored for two dimensional simulations. Moreover, the connection step for the scattered sensitivity storage is embedded during the adjoint simulation and the sensitivity estimates are calculated on the fly. The required memory storage for our implementation is only 10% of the original implementation of AVM sensitivity with TLM.

Original language	English
Article number	6142013
Pages (from-to)	2122-2125
Number of pages	4
Journal	IEEE Transactions on Antennas and Propagation
Volume	60
Issue number	4
DOIs	https://doi.org/10.1109/TAP.2012.2186237
State	Published - Apr 2012
Externally published	Yes

Keywords

Computer-aided design (CAD)
adjoint variable method (AVM)
transmission line modeling (TLM)

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/TAP.2012.2186237

Cite this

@article{f0398ecc596a4b32b97983255a2067fe,

title = "A memory-efficient implementation of TLM-based adjoint sensitivity analysis",

abstract = "We present a memory efficient algorithm for the estimation of adjoint sensitivities with the 2D transmission line modeling (TLM) method. The algorithm is based on manipulating the local scattering matrices to reduce the required storage for the original structure simulation associated with lossy dielectric discontinuities. Only one value per cell is stored for two dimensional simulations. Moreover, the connection step for the scattered sensitivity storage is embedded during the adjoint simulation and the sensitivity estimates are calculated on the fly. The required memory storage for our implementation is only 10\% of the original implementation of AVM sensitivity with TLM.",

keywords = "Computer-aided design (CAD), adjoint variable method (AVM), transmission line modeling (TLM)",

author = "Ahmed, \{Osman S.\} and Bakr, \{Mohamed H.\} and Xun Li",

year = "2012",

month = apr,

doi = "10.1109/TAP.2012.2186237",

language = "English",

volume = "60",

pages = "2122--2125",

journal = "IEEE Transactions on Antennas and Propagation",

issn = "0018-926X",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "4",

}

TY - JOUR

T1 - A memory-efficient implementation of TLM-based adjoint sensitivity analysis

AU - Ahmed, Osman S.

AU - Bakr, Mohamed H.

AU - Li, Xun

PY - 2012/4

Y1 - 2012/4

N2 - We present a memory efficient algorithm for the estimation of adjoint sensitivities with the 2D transmission line modeling (TLM) method. The algorithm is based on manipulating the local scattering matrices to reduce the required storage for the original structure simulation associated with lossy dielectric discontinuities. Only one value per cell is stored for two dimensional simulations. Moreover, the connection step for the scattered sensitivity storage is embedded during the adjoint simulation and the sensitivity estimates are calculated on the fly. The required memory storage for our implementation is only 10% of the original implementation of AVM sensitivity with TLM.

AB - We present a memory efficient algorithm for the estimation of adjoint sensitivities with the 2D transmission line modeling (TLM) method. The algorithm is based on manipulating the local scattering matrices to reduce the required storage for the original structure simulation associated with lossy dielectric discontinuities. Only one value per cell is stored for two dimensional simulations. Moreover, the connection step for the scattered sensitivity storage is embedded during the adjoint simulation and the sensitivity estimates are calculated on the fly. The required memory storage for our implementation is only 10% of the original implementation of AVM sensitivity with TLM.

KW - Computer-aided design (CAD)

KW - adjoint variable method (AVM)

KW - transmission line modeling (TLM)

UR - https://www.scopus.com/pages/publications/84859791413

U2 - 10.1109/TAP.2012.2186237

DO - 10.1109/TAP.2012.2186237

M3 - Article

AN - SCOPUS:84859791413

SN - 0018-926X

VL - 60

SP - 2122

EP - 2125

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 4

M1 - 6142013

ER -

A memory-efficient implementation of TLM-based adjoint sensitivity analysis

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this