Patent ID: 8022884
Filing Date: 2011-09-20
Classification: H01Q

Abstract:
1. An antenna configured to produce an axisymmetric radiation pattern around a geometrical axis and having a radiation maximum in a plane perpendicular to the direction of said axis, the antenna comprising: a feed wire comprising at least one meander, the feed wire extending along said axis from a first end to a second end, the first end of the feed wire being located in the same plane as a conductive surface forming a ground plane of the antenna and the second end powering a set of N radiating strands, N being an integer, at least one ground return rod for the strands, said rod connecting one of the radiating strands of the set to the ground plane, wherein the set of the N radiating strands is substantially located in a same main plane and each of the radiating strands follows an initial segment extending radially from the geometrical axis, and then extends along a circular arc portion centered on said axis, said ground return rod for the strands being electrically connected at a first end to the end of the circular arc portion of a strand and, at the opposite end, to the ground plane, and the initial segment of each radiating strand comprises at least one meander.