Optically modulated scatterer probe for in-situ antenna monitoring

Lama Ghattas (1) , Serge Bories (1) , Mervi Hirvonen (2) , Dominique Picard (3)

1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
2 Technical Research Centre of Finland
3 SUPELEC-Campus Gif

Traditionally antenna arrays are optimized and measured under ideal conditions usually in anechoic chamber. However, when the antenna is placed in a real environment (in the presence of near field scatterers), its radiation characteristics can be significantly perturbed compared to the ideal case. This paper presents a non-invasive solution to monitor antenna radiated performance with an embedded diagnostic system. The Optically Modulated Scatterer Technique is implemented. The performances of the OMS probe are analyzed both with static and dynamic characterization.

Mots clés: in-situ near-field measurement; Optically modulated scatterer technique; OMS probe; antenna array diagnostic

Domaines: Electromagnétisme

Lama Ghattas, Serge Bories, Mervi Hirvonen, Dominique Picard. Optically modulated scatterer probe for in-situ antenna monitoring. 8th European Conference on Antennas and Propagation (EuCAP), Apr 2014, The Hague, Netherlands. ⟨hal-01107495⟩