Passive antenna characterization through impedance correlations in a diffuse field - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue IEEE Transactions on Antennas and Propagation Année : 2023

Passive antenna characterization through impedance correlations in a diffuse field

Résumé

Ambient noise correlations allow the passive recovery of Green's functions between two probes. Recently, the same approach has been applied to electromagnetism, but by correlating diffuse fields in mode stirred chambers. Until now, only correlation of S-parameters has been studied. However, it has very recently been shown that the result can be difficult to interpret. To overcome this limitation, a new approach is proposed in this paper to directly estimate the self and mutual impedances of two coupled antennas from impedance correlations. The theoretical developments presented are validated experimentally in a reverberation chamber excited by a single antenna where mechanical and source stirring techniques are combined to generate a sufficiently diffuse field environment. It is shown, with antennas of different properties, that this approach allows to reconstruct with a good accuracy the complex impedance matrix between two receiving antennas as well as the transmission coefficient between them. The extracted gain pattern, in good agreement with that measured in an anechoic chamber, shows the good sensitivity of the proposed passive characterization technique.
Fichier principal
Vignette du fichier
Passive_antenna_characterization_through_impedance_correlation_in_diffuse_field__2_.pdf (2.71 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04040177 , version 1 (21-03-2023)

Identifiants

Citer

Meriem Tamart, Julien de Rosny, Elodie Richalot. Passive antenna characterization through impedance correlations in a diffuse field. IEEE Transactions on Antennas and Propagation, 2023, 71 (4), pp.3061-3069. ⟨10.1109/TAP.2023.3243983⟩. ⟨hal-04040177⟩
27 Consultations
37 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More