Patent ID: 6842631

Claim:
A beamformer, comprising: a sheet of dielectric defining first and second broad surfaces: a first strip conductor extending on said first broad surface of said sheet of dielectric and across a crossover region; a second strip conductor extending on said second broad surface of said sheet of dielectric and across said crossover region, thereby tending to couple to said first strip conductor in said crossover region; a first transition to coplanar waveguide located on said first broad surface of said sheet of dielectric and on one side of said crossover region; a second transition to coplanar waveguide located on said first broad surface of said sheet of dielectric and on another side of said crossover region, for coacting with said first transition to coplanar waveguide so that said first strip conductor is part of a first coplanar waveguide in said crossover region; a first transition to coplanar waveguide located on said second broad surface of said sheet of dielectric and on one side of said crossover region; a second transition to coplanar waveguide located on said second broad surface of said sheet of dielectric and on another side of said crossover region, for coacting with said first transition to coplanar waveguide so that said second strip conductor is part of a second coplanar waveguide in said crossover region, whereby said first and second coplanar waveguides lie in different planes in said crossover region and tend to be isolated from each other.