Mantle Cloaks Based on the Frequency Selective Metasurfaces Designed by Bayesian Optimization

F F Qin; Z Z Liu; Q Zhang; H Zhang; J J Xiao

doi:10.1038/s41598-018-32167-x

Mantle Cloaks Based on the Frequency Selective Metasurfaces Designed by Bayesian Optimization

Sci Rep. 2018 Sep 19;8(1):14033. doi: 10.1038/s41598-018-32167-x.

Authors

F F Qin¹, Z Z Liu¹, Q Zhang¹, H Zhang², J J Xiao³

Affiliations

¹ Shenzhen Engineering Laboratory of Aerospace Detection and Imaging, College of Electronic and Information Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, 518055, Guangdong, China.
² SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
³ Shenzhen Engineering Laboratory of Aerospace Detection and Imaging, College of Electronic and Information Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, 518055, Guangdong, China. eiexiao@hitsz.edu.cn.

Abstract

We propose a full optimization procedure for designing mantle cloaks enclosing arbitrary objects, using sub-wavelength conformal frequency selective surface (FSS). Rely on the scattering cancellation principle of mantle cloak characterized by an average surface reactance, a personal computer can achieve this design procedure. By combing a Bayesian optimization (BO) with an electromagnetic solver, we can automatically find the optimal parameters of a conformal mantle cloak which can nearly cancel the scattering from the enclosed objects. It is shown that the results obtained by our method coincide with those from a rigorous analytical model and the numerical results by full parametric scanning. The proposed methodology opens up a new route for realizing ultra-wideband illusion scattering of electromagnetic wave, which is important for stealth and microwave applications.