Design of a wideband circularly polarized microstrip antenna for compass and GPS

Author

Liu Wen ; Wang Min ; Jiang Yong Jin ; Chen Zhao

Author_Institution

Air Force Early-warning Acad., Wuhan, China

fYear

2013

fDate

26-28 Oct. 2013

Firstpage

195

Lastpage

198

Abstract

The design of a wideband circularly polarized antenna for BD2 and GPS is described in this paper. This aperture-coupled stacked antenna with low permittivity has the advantage of increasing the bandwidth of gain. The balance-feed by 4-port power-dividing phase shift network is used to improve circularly polarized bandwidth and circularly polarized purity. The simulation results and measured results are consistent. The realized gain of the antenna is more than 4dB during the whole work band of BD2 and GPS while the axial ratio is less than 3dB, and the circularly polarized performance is excellent.

Keywords

Global Positioning System; aperture antennas; broadband antennas; compasses; electromagnetic wave polarisation; microstrip antennas; multifrequency antennas; BD2; GPS; aperture-coupled stacked antenna; circularly polarized bandwidth; circularly polarized purity; compass; low permittivity; power-dividing phase shift network; wideband circularly polarized microstrip antenna; Antenna measurements; Antenna radiation patterns; Broadband antennas; Feeds; Global Positioning System; Microstrip; Microstrip antennas; aperture-coupled; circularly polarized; multi-mode and multi-frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Problem-solving (ICCP), 2013 International Conference on

Conference_Location

Jiuzhai

Type

conf

DOI

10.1109/ICCPS.2013.6893536

Filename

6893536