Figure 1
From: Reconfigurable antennas and configuration selection methods for MIMO ad hoc networks
(a) Schematic of the reconfigurable printed dipole array and (b) radiation pattern (in dB) in the azimuthal plane of the two printed dipoles separated by λ /4 in all the configurations for an operation frequency of 2.48 GHz: (a) antenna 1, "short," antenna 2, "short"; (b) antenna 1, "long," antenna 2, "short"; (c) antenna 1, "short," antenna 2,"long"; (d) antenna 1, "long," antenna 2, "long".