Directivity enhancement of circularly polarized microstrip antennas by chiral metamaterial covers

Seyed Ehsan Hosseininnejad; Nader Komjani; Davoud Zarifi; Mahdi Rajabi

doi:10.1587/elex.9.117

LETTER

Directivity enhancement of circularly polarized microstrip antennas by chiral metamaterial covers

Seyed Ehsan Hosseininnejad, Nader Komjani, Davoud Zarifi, Mahdi Rajabi

Author information

Keywords: chiral metamaterial, circular polarization, microstrip antenna, directivity enhancement

JOURNAL FREE ACCESS

2012 Volume 9 Issue 2 Pages 117-121

DOI https://doi.org/10.1587/elex.9.117

Details

Abstract

This paper presents the application of chiral metamaterial covers for improving the circularly polarized microstrip antenna performance. Semi-planar chiral metamaterial structures with a near zero refractive index are designed and utilized for enhancing the directivity of circularly polarized single and array patch antennas. Numerical results show that the directivity of the antennas is significantly improved.

Corresponding author

Register with J-STAGE for free!