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

fYear

2009

fDate

Sept. 29 2009-Oct. 1 2009

Firstpage

630

Lastpage

633

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2009. EuMC 2009. European

Conference_Location

Rome

Print_ISBN

978-1-4244-4748-0

Type

conf

Filename

5296130