中国物理B ›› 2011, Vol. 20 ›› Issue (2): 24101-024101.doi: 10.1088/1674-1056/20/2/024101

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Invisible anti-cloak with elliptic cross section using phase complement

杨钰琦, 张民, 岳建祥   

  1. School of Science, Xidian University, Xi'an 710071, China
  • 收稿日期:2010-06-23 修回日期:2010-08-06 出版日期:2011-02-15 发布日期:2011-02-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 60871070), and the Fundamental Research Funds for the Central Universities, China.

Invisible anti-cloak with elliptic cross section using phase complement

Yang Yu-Qi(杨钰琦),Zhang Min(张民)†,and Yue Jian-Xiang(岳建祥)   

  1. School of Science, Xidian University, Xi'an 710071, China
  • Received:2010-06-23 Revised:2010-08-06 Online:2011-02-15 Published:2011-02-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 60871070), and the Fundamental Research Funds for the Central Universities, China.

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摘要： Based on the theory of phase complement, an anti-cloak with circular cross section can be made invisible to an object outside its domain. As the cloak with elliptic cross section is more effective to make objects invisible than that with circular cross section, a scaled coordinate system is proposed to design equivalent materials of invisible anti-cloak with elliptic cross section using phase complement. The cloaks with conventional dielectric and double negative parameters are both simulated with the geometrical transformations. The results show that the cloak with elliptic cross section through phase complement can effectively hide the outside objects.

Abstract: Based on the theory of phase complement, an anti-cloak with circular cross section can be made invisible to an object outside its domain. As the cloak with elliptic cross section is more effective to make objects invisible than that with circular cross section, a scaled coordinate system is proposed to design equivalent materials of invisible anti-cloak with elliptic cross section using phase complement. The cloaks with conventional dielectric and double negative parameters are both simulated with the geometrical transformations. The results show that the cloak with elliptic cross section through phase complement can effectively hide the outside objects.

Key words: invisible anti-cloak, phase complement, electromagnetic radiation

中图分类号: 

  • 41.20Jb
02.70.Dh (Finite-element and Galerkin methods)