Title :
Modeling of patch antennas partially loaded with dispersive backward-wave materials
Author :
Tretyakov, S.A. ; Ermutlu, M.
Author_Institution :
Radio Lab./SMARAD, Helsinki Univ. of Technol., Finland
fDate :
6/27/1905 12:00:00 AM
Abstract :
A transmission-line model for a patch antenna where a half of the patch is loaded with a dispersive material with negative parameters is used to explore the antenna bandwidth characteristics. Possibilities to reduce the antenna size using the phase compensation in the loaded patch are considered. Resonant properties of patch antennas loaded with a dispersive material and with a nondispersive medium having /spl epsi/=-/spl epsi/0,μ=-μ0 are compared with the unloaded case.
Keywords :
dispersive media; metamaterials; microstrip antennas; transmission lines; antenna bandwidth characteristics; antenna size reduction; dispersive backward-wave materials; nondispersive medium; partially loaded antenna; patch antennas; resonant properties; transmission-line model; Bandwidth; Dispersion; Filling; Metamaterials; Patch antennas; Permeability; Permittivity; Resonance; Slabs; Transmission lines; Artificial materials; backward-wave materials; miniaturization; negative material parameters; patch antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2005.854001
