Few-element active antenna arrays for high-accuracy anti-jamming GLONASS/GPS receivers

Prototypes of tri-band (L1/L2/L3) few-element antenna arrays for high-accuracy anti-jamming GLONASS/GPS receivers have been developed. The arrays consist of active slot stripline leaky wave right-hand circular polarization antennas. Studies have been made of the accuracy of estimating pseudorange using the code and carrier phase of the GLONASS navigation signals of anti-jamming GLONASS/GPS receivers in the L1 and L2 frequency bands for both antenna arrays. It is shown that for the four-element antenna array, with the radiator diameter being 145 mm, RMSE of estimating relative pseudorange using the carrier phase in the L1 band is lower than 1 mm.