A dual-band U-slot microstrip antenna with dual-feed and double-layer

Author

Pingyuan Zhou ; Xihong Ye ; Mang He

Author_Institution

Beijing Inst. of Technol., Beijing, China

fYear

2013

fDate

25-28 Aug. 2013

Firstpage

146

Lastpage

148

Abstract

A dual-band circularly-polarized double-layer U-slot microstrip patch antenna is proposed. The antenna is fed by a two-way Wilkinson power divider with different phase. The feed points are carefully chose to achieve a wide bandwidth. The antenna is printed on the substrate with high dielectric constant and simulated by HFSS and the simulation results are discussed. The impedance bandwidth (VSWR<;1.5) of the lower band and higher band is 24.2% between 1.08 GHz to 1.31 GHz, and 5.7% between 1.52 GHz to 1.61 GHz, respectively. The AR bandwidth (AR<;6 dB) is 45% between 1.07 GHz to 1.71 GHz. The simulated results are in good agreement with the requirement of GPS applications.

Keywords

Global Positioning System; UHF antennas; antenna feeds; electric impedance; frequency selective surfaces; microstrip antennas; permittivity; power dividers; slot antennas; AR bandwidth; GPS applications; HFSS; bandwidth 1.07 GHz to 1.71 GHz; bandwidth 1.08 GHz to 1.31 GHz; bandwidth 1.52 GHz to 1.61 GHz; dielectric constant; dual-band circularly-polarized double-layer U-slot microstrip patch antenna; dual-feed layer antenna; impedance bandwidth; two-way Wilkinson power divider; Bandwidth; Gain; Hair; Microstrip; Microstrip antennas; Patch antennas; GPS; U-slot; dual-band; wide beamwidth;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Technology & Computational Electromagnetics (ICMTCE), 2013 IEEE International Conference on

Conference_Location

Qingdao

Type

conf

DOI

10.1109/ICMTCE.2013.6812407

Filename

6812407