초록 ▼

An omni directional coverage multibeam antenna composed of facets, or antenna modules, that make up a regular polygon of n sides inscribed in a circle of radius r which defines an adjustable composite conical surface. The disclosed antenna modules are independent antenna arrays creating an independe

An omni directional coverage multibeam antenna composed of facets, or antenna modules, that make up a regular polygon of n sides inscribed in a circle of radius r which defines an adjustable composite conical surface. The disclosed antenna modules are independent antenna arrays creating an independent beam. One advantage of such a system is that the radiated wave front associated with such antenna modules is always substantially broadside to the array resulting in limited scan loss effects. Furthermore, the independence of the disclosed antenna modules is important as it allows each module's beam to be either electrically or mechanically steered to affect elevation or azimuthal beam control. Additionally, by employing trapezoidal shaped antenna modules, a minimum radome diameter is achieved that covers this antenna system.

대표청구항 ▼

[ What is claimed is:] [1.] A wireless communication antenna system adapted to provide communications within a substantially fixed geographic area, wherein said predetermined geographic area is neighboring a geographic area having wireless communication provided therein by an antenna other than said

[ What is claimed is:] [1.] A wireless communication antenna system adapted to provide communications within a substantially fixed geographic area, wherein said predetermined geographic area is neighboring a geographic area having wireless communication provided therein by an antenna other than said antenna, systems said antenna system comprising:a plurality of radiating structures, each having a predetermined substantially directional radiation pattern, said radiating structures disposed to form a composite radiation pattern from said directional radiation patterns having a predetermined coverage area substantially corresponding to said substantially fixed geographic area; andautomated means for physically adjusting the position of said radiating structures to result in said composite radiation pattern having an adjusted coverage area, wherein said adjusted coverage area is a different size than said predetermined coverage area, said size being determined at least in part as a function of wireless communication provided in said neighboring geographic area.