Title :
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
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;
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
DOI :
10.1109/MAPE.2007.4393667
