TUMA4: Is your over-the-air EVM bathtub curve limited by your measurement system?

Presentation Abstract
EVM and ACLR are fundamental to all terrestrial wireless communication systems. However, over-the-air testing - common in phased array applications and others - raises a key question: are test results limited by the test system or the antenna's performance? This challenge is particularly pronounced in systems with a high number of elements, such as SATCOM phased arrays. This MicroApps seminar provides a clear answer, presenting practical measurement-based solutions for direct and indirect far-field testing, illustrated with real-world examples using advanced vector signal analysis and generation equipment.