Details

Autor(en) / Beteiligte

• Jung, Mingook
• Heo, Namjoon
• Park, Jinwoo
• Yoo, Jeonghoon

Titel

Multi-directional cloaking structure design using topology optimization

Ist Teil von

• Journal of electromagnetic waves and applications, 2021-05, Vol.35 (8), p.1008-1019

Ort / Verlag

Taylor & Francis

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Taylor & Francis Current Content Access【キャンパス外アクセス可】

Beschreibungen/Notizen

• Cloaking structure designs have been widely performed in a form of metamaterial development. However, physics-based design approach makes it difficult to define complex material profiles. This study proposes an alternative design method for multi-directional cloak design via topology optimization method using a dielectric material. The phase field design method, which uses the reaction-diffusion equations combined with the double well potentials as the update scheme for design variables, is employed for systematic derivation of a topological configuration of the cloaking structure. In addition, the concept of symmetric design sensitivity mapping is introduced for multi-directional cloaking effect. Design results of four-, six- and eight-directional cloak are presented, and experimental verification was performed for six-directional cloak using the fabricated structure through 3D printing technology.