Lossless Scalar Metasurfaces for Anomalous Reflection Based on Efficient Surface Field Optimization

For polarization-preserving anomalous plane-wave reflections by impenetrable surfaces, an efficient numerical field optimization technique is presented for designing lossless metasurfaces. Auxiliary surface waves copolarized with the incident and reflected plane waves are introduced and optimized su...

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Bibliographic Details
Published inIEEE antennas and wireless propagation letters Vol. 17; no. 7; pp. 1149 - 1152
Main Author Kwon, Do-Hoon
Format Journal Article
LanguageEnglish
Published New York IEEE 01.07.2018
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Computer simulation
Electromagnetic reflection
Erbium
Impedance
Metasurfaces
Optical surface waves
Optimization
Optimization techniques
periodic structures
Plane waves
Reactance
Reflection
Surface impedance
Surface resistance
Surface waves
surface waves (SWs)
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Summary:For polarization-preserving anomalous plane-wave reflections by impenetrable surfaces, an efficient numerical field optimization technique is presented for designing lossless metasurfaces. Auxiliary surface waves copolarized with the incident and reflected plane waves are introduced and optimized such that the scalar surface impedance characterizing the reflecting surface approach a purely reactive profile. The resulting inhomogeneous scalar reactance can be discretized for realization as a periodic metasurface. Full-wave simulation of a physical design that is directly translated from the optimized reactance profile shows near-perfect anomalous reflection.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2018.2836299