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博士生尹丽仙参加国际会议回国报告

发布时间:2018-09-07 点击数:

汇报题目:参加在日本富山召开的PIERS2018国际会议

汇报时间201897(星期五) 1400

汇报地点:兴庆校区快速成型中心会议室

汇报人:尹丽仙

会议名称PIERS 2018 in Toyama (Progress In Electromagnetics Research Symposium)

会议时间August 1-4, 2018

会议地点Toyama, Japan

会议简介Photonics and Electromagnetics Research Symposium, also known as Progress in Electromagnetics Research Symposium, provides an international forum for reporting progress and recent advances in the modern development of electromagnetics, photonics and exciting applications. Topics include photonics, plasmonics, metamaterials, antennas, microwave technologies, computational electromagnetics, electromagnetic compatibility, scattering, remote sensing, inverse problems, quantum electrodynamics, quantum optics, material effects, acoustics, electromagnetic theory, and all other modern developments. PIERS is sponsored by The Electromagnetics Academy.

会议交流工作

Oral Presentation:

报告人:Lixian Yin

参加论文信息

Title: Multifunctional Radar Absorbing Metamaterial Structures by 3D printing of composites

Author: Lixian Yin, Xiaoyong Tian, Zhentao Shang, Dichen Li

Abstract:A gradient-refractive-index radar absorbing structure(GRINRAS) for stealth aircraft is proposed in this paper. It is a layered shell composed of a gradient-refractive-index (GRIN) refractor, an absorber and a reflector. The GRIN refractor consists of the isotropic non-resonant woodpile metamaterials, which was designed according to the permittivity distribution equation of the electromagnetic(EM) black hole to bend and match the waves from the air to the radar absorbing structure. The absorber dissipates the EM waves and transforms them into the heat energy. The reflector reflects the EM waves to the absorber and prevents them from entering the inner space of the structure. A ring and a board GRINRAS were designed, and then fabricated by the three-dimensional (3D) printing process of stereolithography (SL). Simulation and experimental results show that the GRINRASes can control the wave propagation and their absorption capacity is better than 10 dB in the broadband of 12 to18 GHz. The GRIN refractor and the absorber have almost equal contributions to the absorption capability. This is the first radar absorbing composite structure composed of the gradient 3D metamaterials. It demonstrates the feasibility of using the metamaterials and 3D printing technology in the innovative radar absorbing structure (RAS) of the stealth aircraft.



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