Title :
Designing and building of a circular GPS antenna
Author :
Abraham, O. ; Leib, A. ; Matzner, H.
Author_Institution :
Commun. Eng. Dept., HIT-Holon Inst. of Technol., Holon, Israel
Abstract :
A circularly polarized microstrip antenna for global positioning system aims is proposed. This work presents the design of a dual-feed patch, which operates at single band (L1) of 1575 MHz. Circular polarization is achieved directly by the dual-feeding technique of a square patch through microstrip lines. The geometrical emplacement of the lines and the feeding point had been chosen in such a matter for the generated waves to be ninety degrees out of phase. The antenna is matched for 50 ohm input impedance, with 1.3% matching bandwidth and 0.63% right-hand circular polarization bandwidth. Good agreement between simulation and measurement was achieved.
Keywords :
Global Positioning System; UHF antennas; antenna feeds; microstrip antennas; polarisation; circular GPS antenna; circularly polarized microstrip antenna; dual-feed patch; dual-feeding technique; frequency 1575 MHz; global positioning system; matching bandwidth; right-hand circular polarization bandwidth; Antenna measurements; Bandwidth; Loss measurement; Microstrip; Microstrip antennas; Polarization; GPS; Microstrip; patch antenna; right-hand circular polarization;
Conference_Titel :
Microwaves, Communications, Antennas and Electronics Systems (COMCAS), 2011 IEEE International Conference on
Conference_Location :
Tel Aviv
Print_ISBN :
978-1-4577-1692-8
DOI :
10.1109/COMCAS.2011.6105835
