Topology optimization design of a lightweight ultra-broadband wide-angle resistance frequency selective surface absorber

Author： Sui Sai Wang Jiafu Pang Yongqiang Qu Shaobo Sui Sai

Publisher： IOP Publishing

E-ISSN： 1361-6463|48|21|215101-215107

ISSN： 0022-3727

Source： Journal of Physics D: Applied Physics, Vol.48, Iss.21, 2015-06, pp. : 215101-215107

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

In this paper, the topology design of a lightweight ultra-broadband polarization-independent frequency selective surface absorber is proposed. The absorption over a wide frequency range of 6.68–26.08 GHz with reflection below −10 dB can be achieved by optimizing the topology and dimensions of the resistive frequency selective surface by virtue of genetic algorithm. This ultra-broadband absorption can be kept when the incident angle is less than 55 degrees and is independent of the incident wave polarization. The experimental results agree well with the numerical simulations. The density of our ultra-broadband absorber is only 0.35 g cm^− 3 and thus may find potential applications in microwave engineering, such as electromagnetic interference and stealth technology.