title: A design method to change the effective shape of scattering cross section for PEC objects based on transformation optics.
abstract: A design method was proposed for transforming the scattering cross section's shape of PEC objects to other arbitrary shapes based on transformation optics. The parameters of the transformer which is a kind of metamaterial being tightly covered to the original PEC object can be determined by the transformation expressions derived in the paper. With the method, the virtual PEC objects with their definite shape of the scattering cross section can be produced visually through the original PEC objects with a designed transformer. The validation was made by comparing the distribution of electromagnetic field of the PEC objects with and without transformer by means of finite-element method. Some examples are also given for demonstrating the effectiveness of the method.
authors.affiliation: State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and Electronics,Chinese Academy of Sciences, P. O. Box 350, Chengdu 610209, China.
authors.forename: Guishan
authors.initials: G
authors.lastname: Yuan
authors.forename: Xiaochun
authors.initials: X
authors.lastname: Dong
authors.forename: Qiling
authors.initials: Q
authors.lastname: Deng
authors.forename: Hongtao
authors.initials: H
authors.lastname: Gao
authors.forename: Chunheng
authors.initials: C
authors.lastname: Liu
authors.forename: Yueguang
authors.initials: Y
authors.lastname: Lu
authors.forename: Chunlei
authors.initials: C
authors.lastname: Du
mesh_terms: D003198:Computer Simulation; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation