Title :
Electronically steerable Yagi-Uda microstrip patch antenna array
Author :
Gray, Derek ; Lu, Jun Wei ; Thiel, David V.
Author_Institution :
Sch. of Microelectron. Eng., Griffith Univ., Nathan, Qld., Australia
fDate :
5/1/1998 12:00:00 AM
Abstract :
This paper describes a dual-frequency circularly polarized electronically steerable microstrip patch antenna array suitable for land-mobile communications. Based on a four-element Yagi-Uda (1928) patch antenna, the four antennas forming the array are located radially from a single square reflector patch on a double-sided printed circuit board. The main lobe of the array covers the elevation angles from 20 to 70° with a peak gain of 8.4 dBi at 1.54 GHz and 11.7 dBi at 1.62 GHz. Full azimuthal coverage is possible by electronically switching between the four elements
Keywords :
UHF devices; Yagi antenna arrays; electromagnetic wave polarisation; land mobile radio; microstrip antenna arrays; mobile antennas; mobile satellite communication; satellite antennas; 1.54 GHz; 1.62 GHz; 11.7 dB; 8.4 dB; UHF; Yagi-Uda microstrip patch antenna array; circularly polarized antenna array; double-sided printed circuit board; dual-frequency array; electronically steerable antenna array; elevation angles; four-element Yagi-Uda patch antenna; full azimuthal coverage; land-mobile satellite communications; main lobe; peak gain; square reflector patch; Artificial satellites; Australia; Feeds; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Polarization; Reflector antennas; Satellite antennas; Satellite broadcasting;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
