EM Material Characterization Techniques for Metamaterials

Nair, Raveendranath U.; Dutta, Maumita; Yazeen, P. S. Mohammed; Venu, KS

doi:10.1007/978-981-10-6517-0

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2020

2024

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Cited by 6 publications

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“…Recently, electromagnetic material characterization has become a dynamic research field due to the rapid development of engineered complex materials [1]. Materials are generally classified in terms of their constitutive parameters in the frequency domain [2].…”

Section: Introductionmentioning

confidence: 99%

Poles and residues of lossy and dispersive electromagnetic metamaterials

Aladadi,

Alkanhal

2024

Phys. Scr.

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This paper proposes a system-based pole-residue approach to describe loss and dispersion in double-positive (DPS), epsilon-negative (ENG), and epsilon-near-zero (ENZ) isotropic metamaterials. The matrix pencil (MP) method extracts the poles and residues from the damped sinusoids of the singular expansion (SEM) of the impulse responses of the transmitted and reflected waves. The complex values of poles and residues serve as a basis for a computational tool to discriminate between lossless, lossy, and dispersive materials. The extracted poles and residues can also be used to classify the material under test as a DPS, an ENG, or an ENZ metamaterial. The proposed method delivers reliable results even with noisy transmission and reflection data.

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Section: Introductionmentioning

confidence: 99%