Patent ID: 9160062
Filing Date: 2015-10-13
Classification: H01Q

Abstract:
1. Method for operating a phase-controlled group antenna comprising a plurality of radiator arrangements arranged in a direction of assembly and each having at least one radiator or radiator group with a plurality of individual radiators, the distances (D) between two adjacent radiator arrangements being equal or deviating from one another by less than 15% and all or some of the radiator arrangements being controlled via one or more phase shifters for beam pivoting, the method comprising: feeding at least one outermost radiator arrangement furthest from a center (Z) of the group antenna in the direction of assembly of the radiator arrangement as a function of the setting of the beam pivot by a relatively disproportionately larger phase shift and/or at least one phase-controlled radiator arrangement closest to the center (Z) of the group antenna is fed by a relatively disproportionately low phase shift in such a way that the following inequality is satisfied: in which Ph N and Ph 1 represent the phase shifts caused by two different phase shifter settings, Ph N corresponds to the phase shift, dependent on the phase shift setting, at the at least one radiator arrangement furthest from the center (Z) of the group antenna and Ph 1 corresponding to the phase shift at the radiator arrangement closest to the center (Z) of the group antenna, and S N corresponding to the distance between the at least one furthest radiator arrangement and the center (Z) of the group antenna and S 1 corresponding to the distance between the at least one radiator arrangement closest to the center (Z) of the group antenna and the center (Z) of the group antenna, and in which the center (Z) of the group antenna corresponds to the phase-neutral center position, which also remains unchanged with differently set phase positions, and providing a differential phase shifter assembly comprising circular-segment-shaped stripline portions each having first and second port ends connected to different radiator arrangements, of which the radii (R in which n is a number 2, 3, 4 . . . N, more specifically corresponding to the number of line portions comprised by the phase shifter assembly used, in which k corresponds to a value within the range of 0.2 to 0.40.