Optimization of Electronic Control Scheme of Multi-layer Phase-Modulated Surface and Its Influence on Scattering Properties
Received date: 2015-11-11
Revised date: 2016-01-04
Online published: 2016-05-30
To improve absorbing properties of phase-modulated surface (PMS), a method for optimizing the switching scheme of PMS using a differential evolution (DE) algorithm is proposed. The number of active layers in PMS is increased. Scattering properties of PMS are theoretically studied using a time-modulation theory. The switching scheme of PMS is optimized using the DE algorithm. The results indicate that the optimized switching scheme can minimize the spatial coverage of scattered echo at the incident frequency. The effect is further enhanced as the number of active layers in PMS increases. The floor effect occurs when the number of active layers reaches a certain value, limiting the PMS structure conversely. This research is meaningful for the design of PMS by balancing its absorbing properties and structure complexity.
FU Yi, HONG Tao . Optimization of Electronic Control Scheme of Multi-layer Phase-Modulated Surface and Its Influence on Scattering Properties[J]. Journal of Applied Sciences, 2016 , 34(3) : 237 -250 . DOI: 10.3969/j.issn.0255-8297.2016.03.001
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