Non-Planar Adaptive Antenna Arrays for GPS Receivers

The effects of various design parameters (e.g., the curvature, number of elements, and element distribution) on the anti-jamming (AJ) performance of non-planar GPS antenna arrays are discussed. It is shown that for the best performance, non-planar GPS antennas should have a convex surface, a large curvature, and as many elements as possible. The antenna elements should also be distributed to fill the available surface. Using these guidelines, a six-inch-high. non-planar GPS antenna containing seven elements was designed, and an experimental model of the antenna was built. The anti-jamming performance of the experimental antenna is presented.