Evaluation On Pseudo-Doppler Antenna Array Using Software-Defined-Radio

We investigated the effects of adjacent monopole spacing of pseudo-doppler antenna arrays (PDAAs) on detecting the angle-of-arrival (AoA) in both indoor and outdoor environments above 2 GHz. A software-defined-radio technology was adopted to realize the capability of PDAA. Among three adjacent monopole spacing (0.1414 lambda, 0.2 lambda, and 0.25 lambda, where. is the wavelength of the frequency), the adjacent monopole spacing of 0.2. showed the lowest angle difference between desired and actual angle in both environments above 2 GHz.