A Dual-Frequency Microstrip Antenna with Wider Beam and Higher Gain at Low-Angle

Author

Zhang, Ying-Feng ; Lü, Shan-Wei ; Luo, Xian-Liang

Author_Institution

Beijing Univ. of Aeronaut. & Astronaut., Beijing

fYear

2007

fDate

16-17 Aug. 2007

Firstpage

512

Lastpage

515

Abstract

A dual-frequency circularly polarized microstrip antenna with wider beams and higher gain at low-angle is proposed in this paper, which is fed by a proximity-coupled microstrip-line. The proposed antenna has no 90-degree hybrid coupler for circular polarization and allows easy connection between a microstrip line and an antenna element. The simulated results verify the circular polarization and show that good return loss and axial ratio characteristics have been obtained.

Keywords

electromagnetic wave polarisation; microstrip antennas; microstrip lines; multifrequency antennas; antenna element; circular polarization; circularly polarized microstrip antenna; dual-frequency microstrip antenna; hybrid coupler; proximity-coupled microstrip-line; Antenna feeds; Antennas and propagation; Aperture antennas; Bandwidth; Dielectric substrates; Frequency; Microstrip antennas; Microwave antennas; Optical polarization; Satellite antennas; Microstrip antennas; higher gain; wider beams;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007 International Symposium on

Conference_Location

Hangzhou

Print_ISBN

978-1-4244-1045-3

Electronic_ISBN

978-1-4244-1045-3

Type

conf

DOI

10.1109/MAPE.2007.4393667

Filename

4393667