Scattering Control Using Nonlinear Smart Metasurface with Internal Feedback

IEEE Radio and Antenna Days of the Indian Ocean

无线电电子学

Semenikhina, D.V.^1 ; Semenikhin, A.I.^1

Southern Federal University, Taganrog, Russia^1

关键词: Adaptive Control;    Internal feedback;    Nonlinear load;    Scattered field;    Scattering controls;    Second harmonics;    Spectral composition;    Strip elements;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/198/1/012003/pdf
DOI  :  10.1088/1757-899X/198/1/012003

来源: IOP

【 摘 要 】

The ideology of creation of a nonlinear smart metasurface with internal feedback for the adaptive control by spectral composition of scattered field is offered. The metasurface contains a lattice of strip elements with nonlinear loads-sensors. They are included in a circuit of internal feedback for the adaptive control of scattered field. Numerically it is shown that maximal levels of the second harmonic in the spectrum of scattered far field correspond to maximum of voltage rectified on metasurface. Experimentally the prototype of the plane smart covering on the basis of the metasurface in the form of strip lattice with controlled nonlinear loads-sensors is investigated for an idea confirmation.