Waveguide antenna

A waveguide antenna having at least two signal channels, the waveguide antenna having an antenna distal side and an antenna proximal side, the waveguide antenna comprising:

• a number of waveguide openings for at least one of transmitting electromagnetic signals to and receiving electromagnetic signals from an environmental space arranged at the antenna distal side;
• an antenna interface structure for connecting the waveguide antenna to at least one of a printed circuit board and a semiconductor component, the antenna interface structure being arranged at the antenna proximal side;
• the antenna interface structure including a number of interface waveguide apertures, the number of interface waveguide apertures being arranged in an interface carrying surface and coupled with the number of waveguide openings via a waveguide channel structure arranged within the waveguide antenna, wherein the interface carrying surface extends transverse to a normal axis, the normal axis extending between proximal and distal;
• wherein each interface waveguide aperture is coupled with at least one associated waveguide opening such that the respective interface waveguide aperture and the associated at least one waveguide opening are offset with respect to each other transverse to the normal axis;
• wherein each interface waveguide aperture and at least one thereto coupled waveguide opening are configured for at least one of transmitting and receiving electromagnetic signals with respective polarizations rotated against each other;
• and
• wherein the number of interface waveguide apertures is arranged in a pattern selected from at least one of rows and columns, and wherein the number of interface waveguide apertures is arranged such that all neighboring interface waveguide apertures within at least one selected from a row and a column have different aperture orientations.