Closed-form harmonic contrast control with surface impedance coatings for conductive objects

Labate Giuseppe; Podilchak Symon K.; Matekovits Ladislau

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Closed-form harmonic contrast control with surface impedance coatings for conductive objects

机译：具有用于导电物体的表面阻抗涂层的闭合形式谐波对比度控制

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The problem of suppressing the scattering from conductive objects is addressed in terms of harmonic contrast reduction. A unique compact closed-form solution for a surface impedance Z(s) (m, kr) is found in a straightforward manner and without any approximation as a function of the harmonic index m (scattering mode to suppress) and of the frequency regime kr (product of wavenumber k and radius r of the cloaked system) at any frequency regime. In the quasi-static limit, mantle cloaking is obtained as a particular case for kr 1 and m = 0. In addition, beyond the quasi-static regime, impedance coatings for a selected dominant harmonic wave can be designed with proper dispersive behavior, resulting in improved reduction levels and harmonic filtering capability. (c) 2017 Optical Society of America

机译：根据谐波对比减少，解决了抑制导电物体散射的问题。用于表面阻抗Z（S）（M，KR）的独特的紧凑型闭合溶液以直接的方式发现并且没有任何近似作为谐波索引M（散射模式以抑制）和频率调节kr的函数（覆盖系统的波数k和半径R）在任何频率方案中。在准静态极限中，作为KR＆的特定情况获得披风粘土。此外，除了准静态状态之外，还可以设计具有适当的分散行为的所选优势波浪的阻抗涂层，从而改善的减少水平和谐波滤波能力。（c）2017年光学学会

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来源
《Applied optics》 |2017年第36期|共5页
作者
Labate Giuseppe; Podilchak Symon K.; Matekovits Ladislau;
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Politecn Torino Dept Elect &

Telecommun Corso Duca Abruzzi 24 I-10129 Turin Italy;

Heriot Watt Univ Inst Sensors Signals &

Syst Edinburgh Campus Edinburgh EH14 4AS Midlothian Scotland;

Politecn Torino Dept Elect &

Telecommun Corso Duca Abruzzi 24 I-10129 Turin Italy;

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正文语种 eng
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Closed-form harmonic contrast control with surface impedance coatings for conductive objects

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