Title :
A Novel GPS Patch Antenna on a Fractal Hi-Impedance Surface Substrate
Author :
Bao, X.L. ; Ruvio, G. ; Ammann, M.J. ; John, M.
Author_Institution :
Centre for Telecommun. Value-Chain Driven Res., Dublin Inst. of Technol.
Abstract :
A compact high-performance circularly-polarized microstrip antenna for the global positioning system application is proposed. It comprises a fractal hi-impedance surface electromagnetic bandgap (EBG) structure printed on a high permittivity substrate. Measurements and simulation of return loss and axial ratio are in good agreement. It is shown that the proposed Global Positioning System antenna has good axial ratio performance in the upper half-plane, an improvement in gain and a significantly wider axial ratio bandwidth when compared to the same antenna without EBG
Keywords :
Global Positioning System; electromagnetic wave polarisation; microstrip antennas; photonic band gap; EBG; GPS patch antenna; Global Positioning System; circularly-polarized microstrip antenna; electromagnetic bandgap; fractal hi-impedance surface substrate; Antenna measurements; Electromagnetic measurements; Fractals; Global Positioning System; Loss measurement; Metamaterials; Microstrip antennas; Patch antennas; Periodic structures; Permittivity measurement; Axial ratio; Global Positioning System (GPS) antennas; fractal hi-impedance surface;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.878900
