A waveguide arrangement

The present disclosure relates to a waveguide arrangement (100, 400) comprising a first waveguide port (101, 401), a second waveguide port (102, 402) and a waveguide conductor (103, 403) that extends between the waveguide ports (101, 102; 401, 402). The waveguide conductor (103, 403) has an extension (E) and comprises at least one metallized electrically conducting inner wall (104, 105, 106, 107). The waveguide arrangement is formed in a multilayer structure (108, 408) comprising two outer layers (109, 110; 409, 410) and at least one intermediate layer (111, 411) that is positioned between the outer layers (109, 110; 409, 410) and comprises at least one internal structure (112a, 112b, 112c, 112d, 113, 114; 412a, 412b, 412c, 412d; 413, 414). At least two layers comprise the waveguide conductor (103, 403) and the layers mainly run along an H-plane of the waveguide conductor (103, 403).