Design of Metal Mesh THz Filters Exploiting Adjoint Sensitivity Analysis

Authors

  • Ahmed Y. Elsharabasy Department of Electrical and Computer Engineering McMaster University, Hamilton, ON L8S 4K1, Canada
  • Mohamed H. Bakr Department of Electrical and Computer Engineering McMaster University, Hamilton, ON L8S 4K1, Canada
  • M. Jamal Deen Department of Electrical and Computer Engineering McMaster University, Hamilton, ON L8S 4K1, Canada

Keywords:

Adjoint sensitivity, derivative-based optimization, frequency selective surfaces, metal mesh filters, simulation, terahertz filter

Abstract

We introduce a novel approach for tuning the bandwidth of metal mesh THz filters. Our approach utilizes the adjoint sensitivity with respect to userdefined shape control parameters. Derivative-based optimization is exploited to evolve the initial template of the filter to a new design which satisfies the design specifications. We suggest a smoothing step for the sharp metallic edges that can be implemented in the final structure. Examples are presented to illustrate the efficiency of the technique in tuning the filter’s bandwidth.

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Published

2019-08-01

How to Cite

Ahmed Y. Elsharabasy, Mohamed H. Bakr, & M. Jamal Deen. (2019). Design of Metal Mesh THz Filters Exploiting Adjoint Sensitivity Analysis. The Applied Computational Electromagnetics Society Journal (ACES), 34(08), 1234–1237. Retrieved from https://journals.riverpublishers.com/index.php/ACES/article/view/8301

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