Abstract: A waveguide antenna includes a number of longitudinal waveguides with lateral and longitudinal slots arranged to emit electromagnetic fields with separate directions of polarization. The waveguide antenna includes a first waveguide having a first rectangular cross-section with lateral slots at substantially right angles with respect to the longitudinal axis of the first waveguide. The lateral slots are arranged in a first short side of the first waveguide. The waveguide antenna also includes a second waveguide having a second rectangular cross-section with longitudinal slots arranged in a second short side at substantially right angles with respect to the lateral slots, and a separating wall. The first and second waveguides are joined at respective first and second broad sides with the first and second short sides facing the same direction.

Abstract: A waveguide device non-uniformly distributes in the magnetic plane a microwave signal from a first waveguide between a second and a third waveguide. The second and third waveguides are arranged parallel to each other and separated by a partition wall, and are terminated at one of their ends by shoulder walls in which an opening is arranged. The first waveguide is attached to this opening. The opening and the first waveguide are displaced sideways with respect to the longitudinal direction of the partition wall.