Microwave devices based on tunable metasurfaces

Author

Luukkonen, Olli ; Simovski, Constantin R. ; Tretyakov, Sergei A.

Author_Institution

Helsinki Univ. of Technol., Espoo

fYear

2007

fDate

9-12 Oct. 2007

Firstpage

489

Lastpage

492

Abstract

In this review presentation we will discuss various possibilities to design tunable microwave devices using artificial impedance surfaces. In particular, we will present our recent results on modeling dense arrays of patches, strip meshes and mushroom-type tunable impedance surfaces. Analytical formulas for grid and surface impedances of penetrable and impenetrable surfaces for arbitrary incidence angles including complex angles allowed us to make extensive studies of surface waves along artificial surfaces and also waves in impedance waveguides. Parameters of surfaces necessary for effective control of the waveguide mode properties will be presented. Finally, we will discuss possible practical realizations of various tunable surfaces and particularities of modeling of different realizations.

Keywords

waveguide theory; artificial impedance surfaces; grid impedances; impedance waveguides; impenetrable surfaces; microwave devices; mushroom-type tunable impedance surfaces; strip meshes; surface waves; tunable metasurfaces; waveguide mode properties; Beam steering; Laboratories; Microwave devices; Optical resonators; Optical surface waves; Optical waveguides; Polarization; Reflector antennas; Surface impedance; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2007. European

Conference_Location

Munich

Print_ISBN

978-2-87487-001-9

Type

conf

DOI

10.1109/EUMC.2007.4405234

Filename

4405234