A Novel Numerical Technique for Analyzing Metasurfaces

Date

2019-12-31

Author

ÖZGÜN, ÖZLEM
Mittra, Raj
Kuzuoğlu, Mustafa

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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This work presents a novel technique for efficient numerical modeling of electromagnetic scattering from metasurfaces comprising of truncated periodic or locally-varying quasi-periodic surfaces. The proposed technique hybridizes the periodic Finite Element Method (FEM) with the Method of Moments (MoM) to develop an algorithm far more efficient than conventional numerical methods for electromagnetic scattering from arbitrary objects. The key feature of the proposed algorithm is that it takes advantage of the quasi-periodic nature of metasurfaces to derive high-level Macro Basis Functions (MBFs) derived by using the FEM, and subsequently used to derive a reduced MoM matrix for the unknown coefficients of the MBFs. Numerical results are derived and validated by comparing them with those obtained from commercial softwares.

Subject Keywords

Finite element analysis, Method of moments, Electromagnetic scattering, Dielectrics, Boundary conditions, Periodic structures, Current distribution

URI

https://hdl.handle.net/11511/56284

DOI

https://doi.org/10.1109/apusncursinrsm.2019.8888725

Conference Name

2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

Ö. ÖZGÜN, R. Mittra, and M. Kuzuoğlu, “A Novel Numerical Technique for Analyzing Metasurfaces,” presented at the 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, Atlanta, GA, USA, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56284.