On the Antenna Position to Improve the Radiation Pattern Characterization

The 3-D characterization of radiating structures is a frequently encountered, and yet challenging, procedure. theoretical sampling criterion often leads to prohibitive measurement duration, especially for antennas embedded on electrically large structures. However, the position antenna under test (AUT) strongly influences requirements. By appropriately positioning with respect system, it possible promote low spatial frequency part its spherical harmonic spectrum. We present post-processing optimization algorithm enabling systematic accurate determination antenna's best from given data set no prior knowledge. This so-optimized exploited improve radiation pattern without resorting any additional sample. proposed validated both near-field simulations far-field measurements various structures, including an satellite model.