Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Fabio J. F. Goncalves"'
Publikováno v:
Journal of Electromagnetic Waves and Applications. 35:220-232
This paper describes the integrated use of two design strategies for controlling the permittivity and permeability of a transformation electromagnetics two-dimensional cloak. This hybrid process pe...
A flexible procedure to avoid the boundary materials singularities in 2D transformation-based cloaks
Publikováno v:
Journal of Electromagnetic Waves and Applications. 33:286-295
An out-of-plane coordinate transformation can avoid singular materials in a two-dimensional electromagnetic cloak. Based on numerical simulations of elliptical cylinders, in this paper we show that...
Publikováno v:
IEEE Transactions on Magnetics. 52:1-4
A possible strategy for avoiding singular material parameters in a transformation-based invisibility cloak involves an out-of-plane stretching, calculated to compensate the in-plane singular transformation. In this paper, we used numerical simulation
Autor:
Adriana Brancaccio, Renato C. Mesquita, Elson J. Silva, Alfred G. M. Pinto, Fabio J. F. Goncalves
Publikováno v:
Electronics, Vol 7, Iss 10, p 260 (2018)
Electronics
Volume 7
Issue 10
Electronics
Volume 7
Issue 10
The knowledge of the electromagnetic constitutive properties of materials is crucial in many applications. Free-space methods are widely used for this purpose, despite their inherent practical difficulties. This paper describes an affordable free-spa
Publikováno v:
IEEE Transactions on Magnetics. 51:1-4
Reducing the scattering and enhancing the bandwidth (BW) are two desirable aspects in cloak applications. In this paper, we propose their optimization using a simplified objective function, which avoids a costly detailed frequency sweep to get the BW
Publikováno v:
IEEE Transactions on Magnetics. :1-1
A singular coordinate transformation leads to extreme materials in a transformation-based cloak. If a non-singular transformation is used, the perfect invisibility is lost. The invisibility is also influenced by the homogenization process. In this pa