Optimal design of multilayer radar absorbing materials: a simulation-optimization approach

Abstract

Multilayer radar absorbing materials with light weight, strong absorption, and wide absorption bandwidth are urgently demanded with the increase of electromagnetic pollution. However, the current design methods with only simulation operation or optimization strategy are not comprehensive. Here, a simulation-optimization approach including electromagnetic simulation and numerical calculation is proposed based on the interaction between different software, in which the homogeneous medium substitution method is presented to simplify the complicated structures. Besides, return loss and impedance matching of different layer structures are investigated. From the simulated results, it can be found that the structures with better impedance matching have superior absorbing performance. The optimal method shows the advantages of fast and efficient, which has tremendous potential for various applications, such as military stealth and electromagnetic wave elimination.

Biomass-Derived Integrated Hierarchical Porous Carbon Embedded with Ni@C Nanoparticles for High-Performance and Cost-Effective Microwave Absorbent Design

“…Owing to the strong robustness in structures in the simulation software, the uniform medium modeling is put forward to save computing resources as well as shorten simulation time. 36 After the copper matrix set as 200 mm × 200 mm × 0.035 mm is covered with the absorbent 0.5Ni and 0.75Ni respectively, smaller reflected signals are exhibited compared with than the pure copper, as depicted in Fig. 10a.…”

Advanced bifunctional bionic neural network-like architecture constructed by multi-scale carbon nanotubes nanocomposites

“…To re ect the implications of as-synthesized absorbers as coatings for the EMW absorption ability in practical engineering [53][54][55][56], the radar cross section (RCS) of an ultra thin PEC plate covered with Ni 3 Fe@NCNT@CFs hierarchical bionic neural network as absorbers at different incident angles was simulated in the real far eld condition (The schematic of the model and the target detection of aircraft by radar are displayed in Fig. S8a and e, respectively).…”

Wave Mechanics of Microwave Absorption in Films: Part 3 – Multilayered Films

“…In previous publications, the recognized treatments of single layered film have been applied wrongly to the intermediate layer of a multiple layered film [46,[58][59][60][61][62][63][64][71][72][73]. For a single layered film, incident microwaves need only be considered from the front of the film.…”