Window increasing technique to discriminate mathematical and physical resonant poles extracted from antenna response

François Sarrazin (1) , Philippe Pouliguen (2) , Ala Sharaiha (1) , Patrick Potier (3) , Janic Chauveau (3)

1 IETR - Institut d'Électronique et des Technologies du numéRique
2 DGA MRIS - DGA Mission Recherche et Innovation Scientifique
3 DGA.MI - DGA Maîtrise de l'information

This letter presents a new approach called window increasing technique (WIT) to discriminate mathematical and physical poles extracted from a noisy antenna response. The principle of the WIT is to apply a pole extraction method on several windows of the response and then to observe the stability of the extracted poles. In order to compare the WIT to the classical window moving technique (WMT), we apply these two techniques on the electric far field backscattered by a dipole antenna. We show that, in presence of noise, the WIT allows finding more physical poles with a good accuracy than the WMT.

Keywords: WIT; WMT; dipole antenna; electric far-field backscattering; noisy antenna response; physical poles; pole extraction method; stability; window increasing technique; window moving technique; backscatter; dipole antennas

Domains: Engineering Sciences [physics]; Electronics

François Sarrazin, Philippe Pouliguen, Ala Sharaiha, Patrick Potier, Janic Chauveau. Window increasing technique to discriminate mathematical and physical resonant poles extracted from antenna response. Electronics Letters, 2014, 50 (5), pp.343 - 344. ⟨10.1049/el.2013.3980⟩. ⟨hal-01080788⟩