Electric-field-coupled metamaterials for microwave beam formation

Author

Justice, B.J. ; Nguyen, V.N. ; Yönak, S.H. ; Kim, J. ; Smith, D.R.

Author_Institution

Duke Univ., Durham

fYear

2007

fDate

9-15 June 2007

Firstpage

2566

Lastpage

2569

Abstract

Microwave propagation through an electric-field-coupled metamaterial lens with a refractive index gradient is experimentally investigated. A gradient in the refractive index of the metamaterial is introduced by continuous tuning of a single parameter in the metamaterial elements. Experimental field maps, acquired in a planar waveguide, demonstrate that the planar gradient index lens can be used to collimate radiation from a line source, thereby forming a beam.

Keywords

gradient index optics; lenses; metamaterials; microwave propagation; planar waveguides; refractive index; continuous tuning; electric-field-coupled metamaterials; microwave beam formation; microwave propagation; planar gradient index lens; planar waveguide; refractive index gradient; Antennas and propagation; Electromagnetic propagation; Electromagnetic radiation; Impedance; Lenses; Metamaterials; Optical design; Optical resonators; Planar waveguides; Refractive index; Graded index optics; electric-field-coupled resonators; metamaterials; microwave propagation;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2007 IEEE

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4244-0877-1

Electronic_ISBN

978-1-4244-0878-8

Type

conf

DOI

10.1109/APS.2007.4396058

Filename

4396058