This paper presents a numerical assessment and feasibility study of a far-field (FF) measurement technique for vehicle-mounted antennas, employing a 3D movable plane wave generator (PWG). Given the physical size of standard vehicles, antennas can be considered small on a large platform, with their radiation predominantly contributed by the antenna and its immediate surroundings. This insight is leveraged to significantly reduce the size of the plane wave generator, enhancing its agility in movement. The method’s feasibility is numerically investigated on a realistic vehicle with antennas in various locations. A physically displaceable PWG is employed to measure the 3D radiated performance in FF conditions. The paper details the test vehicle, introduces the 0.6-6GHz PWG, validates the assumption linking radiation to a limited area around the antennas, and reports the method’s achievable accuracy through comparison with reference radiation.
