DESIGN OF A BROADBAND RIGHT-ANGLED BEND USING TRANSFORMATION OPTICS | Zendy

Mozhdeh Mola | Zendy; Alireza Yahaghi | Zendy

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DESIGN OF A BROADBAND RIGHT-ANGLED BEND USING TRANSFORMATION OPTICS

Author(s) -

Mozhdeh Mola,

Alireza Yahaghi

Publication year - 2015

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc14121508

Subject(s) - transformation optics , optics , conformal map , planar , waveguide , broadband , isotropy , boundary value problem , bandwidth (computing) , laplace transform , dielectric , physics , materials science , mathematical analysis , mathematics , optoelectronics , computer science , telecommunications , computer graphics (images) , metamaterial

A right-angled waveguide bend using conformal transformation optics is proposed which guides the input electromagnetic wave smoothly through the waveguide, reduces the reflections and broadens the bandwidth of the device significantly. The isotropic material parameters are obtained through solving Laplace's equations with Dirichlet and Neumann boundary conditions. It is shown that the performance of the proposed bend is mainly determined by refractive indices lower than one. Utilizing this, the approximated resulting medium is implemented by drilling hole arrays in a dielectric background. In order to take advantage of planar technology, it can be implemented in a substrate integrated waveguide.

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