Microwave absorption by chiral, racemic and non-chiral unit cells: The role of chirality in absorbing materials
Date
1998
Authors
Bingle Marianne
Cloete Johannes Hendrik
Davidson David Bruce
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Abstract
A theoretical and experimental study is conducted to investigate the role of chirality in synthetic microwave absorbers. Three closely related anisotropic unit cells of thin wire objects, one chiral, one racemic and one non-chiral, are studied around resonance in rectangular waveguide. Conducting thin wire chiral and non-chiral objects, embedded in an absorbing dielectric host and positioned in rectangular waveguide, are numerically analyzed with the finite difference time domain method. Measured and predicted results for the scattering parameters are presented.
Description
Keywords
Electromagnetic wave scattering, Finite difference method, Microwave devices, Rectangular waveguides, Time domain analysis, Finite difference time domain (FDTD), Microwave absorption, Electromagnetic wave absorption
Citation
Proceedings of the South African Symposium on Communications and Signal Processing, COMSIG