Patent ID: 6727860
Filing Date: 2004-04-27
Classification: H01Q

Abstract:
Distribution network for electromagnetic signals for use in an antenna arrangement in the microwave range, the distribution network comprising:at least first and second waveguide branches comprised of respective grooves defined in a plate of conductive material, in which branches the electromagnetic signals propagate in different directions with respect to one another so that the signals in the first branch propagate in a first direction and signals in the second branch propagate in a second direction different from the first direction, wherein said first and second waveguide branches overlap one another at a point in the distribution network, said first and second waveguide branches each having at least one through-going aperture in the part of the branch which overlaps the other branch, said through-going apertures extending all the way through the plate of conducting material and each aperture being arranged essentially at a right angle with respect to a main direction of extent of the corresponding branch; and wherein the apertures in the branches serve as radiating elements of the antenna arrangement in which the distribution network is used.