Patent ID: 7868843

Claim:
A multiband antenna system for cellular base stations, comprising: a common central support located substantially along a central axis of the multiband antenna system; at least two multiband antenna arrays mounted on the common central support and radially spaced from the central axis of the multiband antenna system; wherein each of the at least two multiband antenna arrays is longitudinally placed within an angular sector defined around said central axis; wherein an angular spacing is defined between said angular sector; a mechanical feature coupled to the common central support and to the at least two multiband antenna arrays to pivotally move each of the at least two multiband antenna arrays around said central axis within its corresponding angular sector, providing each of the at least two multiband antenna arrays with an adjustable azimuth coverage; wherein each of the at least two multiband antenna arrays comprises a first set of radiating elements operating at a first frequency band and a second set of radiating elements operating at a second frequency band, wherein the second frequency band being higher than the first frequency band; wherein the radiating elements are smaller than λ/2 or smaller than λ/3, wherein (λ) being a longest operating wavelength; and wherein a ratio between a central frequency of the second frequency band and a central frequency of the first frequency band is smaller than 2.