A Wideband Antenna for Global Navigation Satellite System With Reduced Multipath Effect

Author

Wang EnCheng ; Wang Zhuopeng ; Chang Zhang

Author_Institution

Inf. Eng. Coll., North China Univ. of Technol., Beijing, China

Volume

12

fYear

2013

fDate

2013

Firstpage

124

Lastpage

127

Abstract

This letter presents a wideband circularly polarized patch antenna for GPS/GLONASS/BEIDOU/GALILEO systems with reduced multipath effect. The proposed antenna includes four L-probe feeds that are connected the feed network, two circular patches, and a choke ring base. The choke ring base is designed to reduce the multipath effect of the receiver. Experiment results indicate that the bandwidth of the antenna is 50.9% under S₁₁ <; -10 dB from 1.0 to 1.7 GHz, the 3-dB axial-ratio bandwidth is 30.6% from 1.19 to 1.62 GHz, and the measured gains are all above 5 dB in the whole operating band. Moreover, low multipath effect is observed. Both simulated and measured results are presented.

Keywords

Global Positioning System; broadband antennas; electromagnetic wave polarisation; interference suppression; microstrip antennas; radio receivers; BEIDOU; GALILEO; GLONASS; GPS; L-probe feeds; bandwidth 1.0 GHz to 1.7 GHz; bandwidth 1.19 GHz to 1.62 GHz; choke ring base; feed network; global navigation satellite system; receiver; reduced multipath effect; wideband circularly polarized patch antenna; Antenna feeds; Antenna measurements; Global Positioning System; Inductors; Patch antennas; Power dividers; Circularly polarized antenna; multipath effect; patch antenna; ultrawideband antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2013.2243695

Filename

6423202