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

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 m...

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Bibliographic Details
Main Authors: Ying-feng Zhang, Shan-wei Lu, Xian-liang Luo
Format: Conference Proceeding
Language:English
Subjects:
Antenna feeds
Antennas and propagation
Aperture antennas
Bandwidth
Dielectric substrates
Frequency
higher gain
Microstrip antennas
Microwave antennas
Optical polarization
Satellite antennas
wider beams
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Summary: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.
DOI:10.1109/MAPE.2007.4393667