Radiation diversity antennas

摘要

The present invention relates to a radiation diversity antenna consisting of radiating elements of the slot-line type coupled electromagnetically to a feed line, in which the radiating elements have a tree structure, each radiating element having a length equal to klambdas/2 where k is an identical or different integer from one element to the next and lambdas is the guided wavelength in the slot-line constituting the radiating element with at least one radiating element comprising a switching means positioned in the slot-line constituting the said radiating element in such a way as to control the coupling between the said radiating element and the feed line as a function of a command. The invention applies chiefly to wireless transmissions.