Design of an ultra-directive antenna using spatial coordinate transformation

Author

Tichit, P.H. ; Burokur, S.N. ; de Lustrac, A.

Author_Institution

Inst. d´´Electron. Fondamentale, Univ. Paris-Sud, Orsay

fYear

2009

fDate

2-4 March 2009

Firstpage

1

Lastpage

4

Abstract

Spatial coordinate transformation is used as a reliable tool to control electromagnetic fields. In this paper, we derive the permeability and permittivity tensors of a metamaterial able to transform a dipole source radiating isotropically to an ultra-directive antenna. We show how its directivity is enhanced when the wavelength is sufficiently small compared to the width of the metamaterial. Numerical simulations using Comsol Multiphysics are performed to illustrate these properties.

Keywords

antenna radiation patterns; dipole antennas; directive antennas; electromagnetic fields; metamaterials; permeability; permittivity; tensors; Comsol Multiphysics; dipole source radiation; electromagnetic fields; metamaterial; permeability tensors; permittivity tensors; spatial coordinate transformation; ultra-directive antenna design; Anisotropic magnetoresistance; Dipole antennas; Directive antennas; Electromagnetic fields; Jacobian matrices; Metamaterials; Permeability; Permittivity; Tensile stress; Transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology, 2009. iWAT 2009. IEEE International Workshop on

Conference_Location

Santa Monica, CA

Print_ISBN

978-1-4244-4395-6

Electronic_ISBN

978-1-4244-4396-3

Type

conf

DOI

10.1109/IWAT.2009.4906905

Filename

4906905