Title :
Patch antennas partially loaded with a dispersive backward-wave material
Author :
Ermutlu, Murat Emre ; Tretyakov, Sergei
Author_Institution :
Nokia Networks, P.O. Box 301, FI-00045, Finland, http://www.nokia.com; Radio Laboratory / SMARAD, Helsinki University of Technology, P.O. Box 3000, FI-02015 TKK Finland, http://www.tkk.fi
Abstract :
In this work 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 non-dispersive medium having ε0=-εo, μ0=-μ0are compared with the unloaded case.
Keywords :
Admittance; Dispersion; Filling; Loaded antennas; Metamaterials; Patch antennas; Permeability; Permittivity; Resonance; Transmission lines;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551719
