Open AccessProbe‐compensated fast hybrid antenna testing
Author(s) -
Giordanengo Giorgio,
Righero Marco,
Leonardo Araque Quijano Javier,
Vipiana Francesca,
Vecchi Giuseppe
Publication year - 2017
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2016.1002
Subject(s) - undersampling , antenna (radio) , device under test , nyquist–shannon sampling theorem , ideal (ethics) , compensation (psychology) , sampling (signal processing) , electronic engineering , computer science , transformation (genetics) , engineering , scattering parameters , telecommunications , philosophy , biochemistry , psychology , chemistry , epistemology , detector , psychoanalysis , gene
Near‐field (NF) measurements with NF‐to‐far‐field (FF) transformation are a powerful and standard approach to modern antenna measurements. This approach implies a relatively close distance between device under test (DUT) and probe and, since the latter is rarely an ideal probe, it will introduce effects that have to be removed to obtain a FF which is only expression of the DUT. In this study, the authors introduce a probe compensation technique applicable to a generic scan surface with non‐uniform, possibly incomplete sampling. The procedure is based on a hybridisation between simulations and measurements of the DUT, originally devised to achieve a radical undersampling of the NF with respect to the Nyquist criteria, in order to perform fast and accurate measurements. They present results that prove the effectiveness of the proposed approach.