Few-element antenna array for high-accuracy noise-protected tri-band GLONASS/GPS receiver

A few-element antenna array for the high-accuracy noise-protected receiver GLONASS/GPS has been developed. The antenna array is implemented based on the tri-band (L1/L2/L3) active slot stripline leaky-wave antennas with right-hand circular polarization. The root-mean-square deviation (RMSD) of the relative phase pseudo-range determination by GLONASS signals in the four-element antenna array is observed to be lower than 1 mm in the L1 band and lower than 1.3 mm in the L2 band.