Issue Eur. Phys. J. Appl. Phys. Volume 46, Number 2, May 2009 Article Number 20702 Number of page(s) 5 Section Photonics DOI 10.1051/epjap/2009059 Published online 03 April 2009

Eur. Phys. J. Appl. Phys. 46, 20702 (2009)
DOI: 10.1051/epjap/2009059

Equal-thickness invisible cloaks for arbitrarily polygonal-cylindrical regions

W.X. Jiang¹, T.J. Cui¹, J.Y. Chin¹, Q. Cheng¹, G.X. Yu¹, X.M. Yang¹ and R. Liu<sup>1, 2

1</sup>  State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, 210096 Nanjing, P.R. China
²  Department of Electrical and Computer Engineering, Duke University, Box 90291, Durham, 27708 North Carolina, USA

wxjiang@emfield.org

Received: 18 November 2008 / Received in final form: 14 January 2009 / Accepted: 20 February 2009 / Published online: 3 April 2009

Abstract
Based on the theory of coordinate transformation, the design of electromagnetic (EM) invisible cloak with a uniform thickness is proposed for arbitrarily polygonal-cylindrical regions. The designed equal-thickness cloak will force incoming EM waves to propagate around the inner polygonal region smoothly. Similar to the circular cloak, such EM waves will return to their original propagation directions without distorting the waves outside the cloak. Full-wave simulations are given to validate the design and analysis.

PACS
41.20.Jb - Electromagnetic wave propagation; radiowave propagation.
42.25.Gy - Edge and boundary effects; reflection and refraction.
42.79.Dj - Gratings.

© EDP Sciences 2009

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