A low-profile circularly polarized dipole antenna using a novel polarization rotation artificial magnetic conductor

Author

Wanchen Yang ; Wenquan Che ; Wai-Wa Choi ; Kam-Weng Tam

Author_Institution

Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China

fYear

2014

fDate

6-9 Oct. 2014

Firstpage

374

Lastpage

377

Abstract

A novel polarization rotation surface based on artificial magnetic conductor structure (AMC) is proposed, which can reflect incident wave in orthogonal polarization state and simultaneously offer a 90° phase difference. The feature is theoretically analyzed and validated. By using the proposed polarization rotation AMC, right-handed circular polarization is achieved for a linearly polarized dipole antenna. Simulation and measured results both demonstrate good performance of a broad axial ratio bandwidth and large axial ratio beamwidth in both xoz and yoz planes.

Keywords

dipole antennas; electromagnetic wave polarisation; magnetic devices; AMC; artificial magnetic conductor structure; axial ratio beamwidth; broad axial ratio bandwidth; linearly polarized dipole antenna; low-profile circularly polarized dipole antenna; orthogonal polarization state; phase difference; polarization rotation surface; reflect incident wave; right-handed circular polarization; xoz plane; yoz plane; Antenna measurements; Bandwidth; Dipole antennas; Polarization; Reflection; Reflection coefficient; Reflector antennas; artificial magnetic conductor (AMC); axial ratio; circular polarization; dipole antenna; polarization rotation;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2014 44th European

Conference_Location

Rome

Type

conf

DOI

10.1109/EuMC.2014.6986448

Filename

6986448