In this communication, the design procedure of a multimode multiple-input multiple-output (MIMO) antenna is presented. The antenna consists of a metallic ring antenna operating with different orthogonal modes, whose performance in a MIMO system is similar to traditional antenna arrays. Thus, a compact MIMO antenna is obtained, which is very suitable for mobile terminals. A modal analysis of the antenna is carried out first by means of the theory of characteristic modes, in order to identify the different radiating modes of the antenna. Then a set of feeding configurations is proposed so as to excite these modes. As the modes must operate in the same frequency band, a loading technique is used in the antenna in order to shift the resonance frequency of the modes to the proper band.
Design of a multimode MIMO antenna using characteristic modes / Antonino Daviu, E; Cabedo Fabres, M; Gallo, M; Ferrando Bataller, M; Bozzetti, Michele. - (2009), pp. 1840-1844. (Intervento presentato al convegno 3rd European Conference on Antennas and Propagation, EuCAP 2009).
Design of a multimode MIMO antenna using characteristic modes
BOZZETTI, Michele
2009-01-01
Abstract
In this communication, the design procedure of a multimode multiple-input multiple-output (MIMO) antenna is presented. The antenna consists of a metallic ring antenna operating with different orthogonal modes, whose performance in a MIMO system is similar to traditional antenna arrays. Thus, a compact MIMO antenna is obtained, which is very suitable for mobile terminals. A modal analysis of the antenna is carried out first by means of the theory of characteristic modes, in order to identify the different radiating modes of the antenna. Then a set of feeding configurations is proposed so as to excite these modes. As the modes must operate in the same frequency band, a loading technique is used in the antenna in order to shift the resonance frequency of the modes to the proper band.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.