The role of an accurate time-frequency analysis of a time-modulated array in order to evaluate its radiation performance is discussed. By carefully taking into account the non-linear behavior of the radio-frequency switches in the feeding network and the unavoidable presence of electromagnetic couplings between the radiating elements, it is shown to which extent the system performances differ from those derived in the ideal case when considering isotropic uncoupled elements. Representative results, considering benchmark switching configurations and different realistic antenna models, are reported and discussed, also in a comparative fashion.
The Role of Accurate Dynamic Analysis for Evaluating Time-Modulated Arrays Performance / Rocca, P.; Masotti, D.; Costanzo, A.; Salucci, M.; Poli, L.. - In: IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS. - ISSN 1536-1225. - ELETTRONICO. - 16:(2017), pp. 2663-2666. [10.1109/LAWP.2017.2740359]
The Role of Accurate Dynamic Analysis for Evaluating Time-Modulated Arrays Performance
MASOTTI, DIEGO;COSTANZO, ALESSANDRA;
2017
Abstract
The role of an accurate time-frequency analysis of a time-modulated array in order to evaluate its radiation performance is discussed. By carefully taking into account the non-linear behavior of the radio-frequency switches in the feeding network and the unavoidable presence of electromagnetic couplings between the radiating elements, it is shown to which extent the system performances differ from those derived in the ideal case when considering isotropic uncoupled elements. Representative results, considering benchmark switching configurations and different realistic antenna models, are reported and discussed, also in a comparative fashion.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
