Multi-setup radiation pattern measurements performed within uncontrolled indoor environment

The dataset contains unprocessed measurements of radiation pattern characteristics performed within a non-anechoic regime for a spline-parameterized Vivaldi structure. The responses have been obtained at three positions of the test gear (also referred to as setups). Measurements are performed over a broad frequency ranges (several GHz) as a function of rotation angle. The latter is understood as angular position of the antenna under test w.r.t. the reference antenna (here, for all experiments, a Vivaldi structure is used as both) in a selected plane of rotation. The dataset is supplemented with the antenna model, as well as a schematic diagram of the non-anechoic test site configuration with highlight on utilized setups. The measurements represent a part of the data used for post-processing in the paper published in IEEE Access (https://doi.org/10.1109/ACCESS.2025.3580757).