Patent ID: 8576137

Claim:
A multi-radiator base station antenna, comprising: a feeding network comprising at least one set of one input ( 1 ; 21 ) and two output ( 2 , 3 ) coaxial lines where the two output coaxial lines ( 2 , 3 ; 22 , 23 ) are aligned but pointing in opposite directions and the input coaxial ( 1 ) line is connected to one end of each of the two output coaxial lines ( 2 , 3 ; 22 , 23 ) via a crossover ( 7 ; 29 ), wherein each coaxial line comprises an outer conductor ( 8 , 30 ) and an inner conductor ( 4 , 5 , 6 , 25 , 26 , 27 , 28 ); and an adjustable differential phase shifter including a dielectric part ( 9 , 31 ) arranged for at least one set of output coaxial lines ( 2 , 3 ; 22 , 23 ) so that by moving the dielectric part ( 9 ; 31 ) that is present within the two output coaxial lines ( 2 , 3 ; 22 , 23 ) the phase at the outputs is varied and wherein a first side of an extruded metal profile forms the outer conductors of the coaxial lines and a second side of the extruded metal profile that is opposite the first side forms a reflective surface thus integrating the coaxial lines and the adjustable differential phase shifter are integrated parts of an antenna reflector.