Title :
Design techniques for circularly polarized antennas using metamaterial structures
Author :
Ugarte-Muñoz, Eduardo ; Herraiz-Martínez, Francisco Javier ; González-Posadas, Vicente ; Garcia-Muñoz, Luis Enrique ; Segovia-Vargas, Daniel
Author_Institution :
Dept. of Signal Theor. & Commun., Carlos III Univ. of Madrid, Leganes, Spain
fDate :
Sept. 29 2009-Oct. 1 2009
Abstract :
In this paper four multi-frequency circularly polarized antennas are proposed. The first one is a 4-ports self-diplexed multi-frequency RHCP-LHCP antenna. The second antenna is a single-feed short-circuited circular patch antenna filled with metamaterial structures to obtain a single port circularly polarization antenna. The two last antennas proposed are conventional microstrip patch antennas filled with metamaterial structures, with some modifications in order to achieve the desired circularly polarization using only one port. Finally, both, dual-feed and single-feed configurations are compared.
Keywords :
electromagnetic wave polarisation; metamaterials; microstrip antennas; multifrequency antennas; 4-ports self-diplexed multifrequency RHCP-LHCP antenna; dual-feed configuration; metamaterial structure; microstrip patch antenna; multifrequency circularly polarized antenna; single-feed configuration; single-feed short-circuited circular patch antenna; Antenna feeds; Dual band; Filtering; Frequency; Metamaterials; Microstrip antennas; Patch antennas; Polarization; Prototypes; Reflection;
Conference_Titel :
Microwave Conference, 2009. EuMC 2009. European
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4748-0
