Truncation Error Reduction in Antenna Near-Field Measurements using an Overcomplete Basis Representation

Marco Donald Migliore (1) , Marco Salucci (2) , Paolo Rocca (2) , Andrea Massa (3, 2)

1 University of Cassino and Southern Lazio [Cassino]
2 UNITN - Università degli Studi di Trento = University of Trento
3 L2S - Laboratoire des signaux et systèmes

A novel method for the reduction of the truncation error in near-field measurements is proposed. The approach is based on an overcomplete representation of the field generated from a suitable “modeling” of the uncertainties affecting the antenna under test and on the successive selection of a suitable set of basis functions by means of the orthogonal matching pursuit method. Selected numerical and experimental results confirm the effectiveness of the proposed technique.

Domaines: Electromagnétisme; Traitement du signal et de l'image [eess.SP]

Marco Donald Migliore, Marco Salucci, Paolo Rocca, Andrea Massa. Truncation Error Reduction in Antenna Near-Field Measurements using an Overcomplete Basis Representation. IEEE Antennas and Wireless Propagation Letters, 2018, 18 (2), pp.283 - 287. ⟨10.1109/lawp.2018.2888991⟩. ⟨hal-02019445⟩