An Approach of Designing High Angular Resolution Virtual MIMO Antennas for Radio System Applications

In this paper, an approach of designing high angular resolution (AR) antennas system is presented. Based on the virtual antenna and ambiguity function theory, its AR is improved from our detailed design, including optimized beam patterns, 2D sparse array and electromagnetic band gap (EBG) structure techniques. High AR of 1.1°/3.5° in azimuth/elevation are obtained, and then verified by both the simulations and the experiments in our millimeter wave (MMw) system platform, showing the validity of the approach.